Merge branch 'maint'
authorJunio C Hamano <junkio@cox.net>
Wed, 16 Aug 2006 21:00:12 +0000 (14:00 -0700)
committerJunio C Hamano <junkio@cox.net>
Wed, 16 Aug 2006 21:00:12 +0000 (14:00 -0700)
* maint:
[PATCH] git-mv: add more path normalization

86 files changed:
.gitignore
Documentation/diff-options.txt
Documentation/git-grep.txt
Documentation/git.txt
INSTALL
Makefile
blame.c
builtin-apply.c
builtin-cat-file.c
builtin-checkout-index.c [new file with mode: 0644]
builtin-count-objects.c [new file with mode: 0644]
builtin-count.c [deleted file]
builtin-diff-files.c
builtin-diff.c
builtin-fmt-merge-msg.c
builtin-grep.c
builtin-help.c [deleted file]
builtin-ls-files.c
builtin-ls-tree.c
builtin-mailinfo.c
builtin-name-rev.c [new file with mode: 0644]
builtin-pack-objects.c [new file with mode: 0644]
builtin-prune.c
builtin-push.c
builtin-read-tree.c
builtin-repo-config.c
builtin-rev-list.c
builtin-rev-parse.c
builtin-show-branch.c
builtin-symbolic-ref.c [new file with mode: 0644]
builtin-unpack-objects.c [new file with mode: 0644]
builtin-update-index.c
builtin-verify-pack.c [new file with mode: 0644]
builtin.h
cache.h
checkout-index.c [deleted file]
combine-diff.c
commit.c
config.mak.in
configure.ac
connect.c
csum-file.c
daemon.c
describe.c
diff.c
diff.h
environment.c
exec_cmd.c
fetch-clone.c
fetch-pack.c
fsck-objects.c
git.c
gitweb/README
gitweb/git-logo.png [new file with mode: 0644]
gitweb/gitweb.cgi [deleted file]
gitweb/gitweb.css
gitweb/gitweb.perl [new file with mode: 0755]
help.c [new file with mode: 0644]
http-fetch.c
http-push.c
local-fetch.c
merge-base.c
merge-index.c
mktree.c
name-rev.c [deleted file]
pack-objects.c [deleted file]
pack-redundant.c
pager.c
read-cache.c
receive-pack.c
run-command.c
send-pack.c
sha1_file.c
sha1_name.c
ssh-fetch.c
ssh-upload.c
symbolic-ref.c [deleted file]
t/t4116-apply-reverse.sh [new file with mode: 0755]
t/t7002-grep.sh
tree-diff.c
tree.c
unpack-objects.c [deleted file]
unpack-trees.c [new file with mode: 0644]
unpack-trees.h [new file with mode: 0644]
upload-pack.c
verify-pack.c [deleted file]
index fb0fa3f16a7c8a42c5d0d1be62666cc4ea4c6575..55cd9844d61e202670076968b20dcb0fda68732e 100644 (file)
@@ -125,6 +125,7 @@ git-verify-tag
 git-whatchanged
 git-write-tree
 git-core-*/?*
+gitweb/gitweb.cgi
 test-date
 test-delta
 test-dump-cache-tree
@@ -140,7 +141,7 @@ config.mak
 autom4te.cache
 config.log
 config.status
-config.mak.in
 config.mak.autogen
+config.mak.append
 configure
 git-blame
index 47ba9a403ae9379b87c54f0103297da9157237cb..b5d9763594b3fcb4dcc273c0118f7edbf236380d 100644 (file)
@@ -36,6 +36,9 @@
        Turn off colored diff, even when the configuration file
        gives the default to color output.
 
+--color-words::
+       Show colored word diff, i.e. color words which have changed.
+
 --no-renames::
        Turn off rename detection, even when the configuration
        file gives the default to do so.
index dc7683383c3b4dc4c6bede834155ae56132aafc3..7545dd9a3e6c3cc16fd46e44830af4767978d2be 100644 (file)
@@ -11,7 +11,7 @@ SYNOPSIS
 [verse]
 'git-grep' [--cached]
           [-a | --text] [-I] [-i | --ignore-case] [-w | --word-regexp]
-          [-v | --invert-match]
+          [-v | --invert-match] [--full-name]
           [-E | --extended-regexp] [-G | --basic-regexp] [-F | --fixed-strings]
           [-n] [-l | --files-with-matches] [-L | --files-without-match]
           [-c | --count]
@@ -47,6 +47,12 @@ OPTIONS
 -v | --invert-match::
        Select non-matching lines.
 
+--full-name::
+       When run from a subdirectory, the command usually
+       outputs paths relative to the current directory.  This
+       option forces paths to be output relative to the project
+       top directory.
+
 -E | --extended-regexp | -G | --basic-regexp::
        Use POSIX extended/basic regexp for patterns.  Default
        is to use basic regexp.
index bcf187a11cfaf754ecb93a2210139dd88f6a9d32..3de5fa9c82de4d49a041480ce6681f69a97f167c 100644 (file)
@@ -633,6 +633,9 @@ git Diffs
 
 other
 ~~~~~
+'GIT_PAGER'::
+       This environment variable overrides `$PAGER`.
+
 'GIT_TRACE'::
        If this variable is set git will print `trace:` messages on
        stderr telling about alias expansion, built-in command
diff --git a/INSTALL b/INSTALL
index ba9778cd4de187878b6445be5fbf490d76879f30..fa9bf74a208697bd4c6cd5c91f3335b2f5475a49 100644 (file)
--- a/INSTALL
+++ b/INSTALL
@@ -16,7 +16,7 @@ install" would not work.
 Alternatively you can use autoconf generated ./configure script to
 set up install paths (via config.mak.autogen), so you can write instead
 
-       $ autoconf ;# as yourself if ./configure doesn't exist yet
+       $ make configure ;# as yourself
        $ ./configure --prefix=/usr ;# as yourself
        $ make all doc ;# as yourself
        # make install install-doc ;# as root
index 02a036b96056aa6e383f1c2def32f005ab3a51a4..56a915e13f6304bc1a6781eafc8182b5b5b7cde6 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -27,7 +27,7 @@ all:
 # Define NO_C99_FORMAT if your formatted IO functions (printf/scanf et.al.)
 # do not support the 'size specifiers' introduced by C99, namely ll, hh,
 # j, z, t. (representing long long int, char, intmax_t, size_t, ptrdiff_t).
-# some c compilers supported these specifiers prior to C99 as an extension.
+# some C compilers supported these specifiers prior to C99 as an extension.
 #
 # Define NO_STRCASESTR if you don't have strcasestr.
 #
@@ -121,6 +121,17 @@ template_dir = $(prefix)/share/git-core/templates/
 GIT_PYTHON_DIR = $(prefix)/share/git-core/python
 # DESTDIR=
 
+# default configuration for gitweb
+GITWEB_CONFIG = gitweb_config.perl
+GITWEB_HOME_LINK_STR = projects
+GITWEB_SITENAME =
+GITWEB_PROJECTROOT = /pub/git
+GITWEB_BASE_URL =
+GITWEB_LIST =
+GITWEB_HOMETEXT = indextext.html
+GITWEB_CSS = gitweb.css
+GITWEB_LOGO = git-logo.png
+
 export prefix bindir gitexecdir template_dir GIT_PYTHON_DIR
 
 CC = gcc
@@ -173,32 +184,23 @@ SIMPLE_PROGRAMS = \
 
 # ... and all the rest that could be moved out of bindir to gitexecdir
 PROGRAMS = \
-       git-checkout-index$X \
        git-convert-objects$X git-fetch-pack$X git-fsck-objects$X \
        git-hash-object$X git-index-pack$X git-local-fetch$X \
        git-merge-base$X \
-       git-merge-index$X git-mktag$X git-mktree$X git-pack-objects$X git-patch-id$X \
+       git-merge-index$X git-mktag$X git-mktree$X git-patch-id$X \
        git-peek-remote$X git-receive-pack$X \
        git-send-pack$X git-shell$X \
        git-show-index$X git-ssh-fetch$X \
        git-ssh-upload$X git-unpack-file$X \
-       git-unpack-objects$X git-update-server-info$X \
+       git-update-server-info$X \
        git-upload-pack$X git-verify-pack$X \
-       git-symbolic-ref$X \
-       git-name-rev$X git-pack-redundant$X git-var$X \
+       git-pack-redundant$X git-var$X \
        git-describe$X git-merge-tree$X git-blame$X git-imap-send$X
 
-BUILT_INS = git-log$X git-whatchanged$X git-show$X git-update-ref$X \
-       git-count-objects$X git-diff$X git-push$X git-mailsplit$X \
-       git-grep$X git-add$X git-rm$X git-rev-list$X git-stripspace$X \
-       git-check-ref-format$X git-rev-parse$X git-mailinfo$X \
-       git-init-db$X git-tar-tree$X git-upload-tar$X git-format-patch$X \
-       git-ls-files$X git-ls-tree$X git-get-tar-commit-id$X \
-       git-read-tree$X git-commit-tree$X git-write-tree$X \
-       git-apply$X git-show-branch$X git-diff-files$X git-update-index$X \
-       git-diff-index$X git-diff-stages$X git-diff-tree$X git-cat-file$X \
-       git-fmt-merge-msg$X git-prune$X git-mv$X git-prune-packed$X \
-       git-repo-config$X
+BUILT_INS = \
+       git-format-patch$X git-show$X git-whatchanged$X \
+       git-get-tar-commit-id$X \
+       $(patsubst builtin-%.o,git-%$X,$(BUILTIN_OBJS))
 
 # what 'all' will build and 'install' will install, in gitexecdir
 ALL_PROGRAMS = $(PROGRAMS) $(SIMPLE_PROGRAMS) $(SCRIPTS)
@@ -227,7 +229,7 @@ LIB_H = \
        blob.h cache.h commit.h csum-file.h delta.h \
        diff.h object.h pack.h pkt-line.h quote.h refs.h \
        run-command.h strbuf.h tag.h tree.h git-compat-util.h revision.h \
-       tree-walk.h log-tree.h dir.h path-list.h
+       tree-walk.h log-tree.h dir.h path-list.h unpack-trees.h builtin.h
 
 DIFF_OBJS = \
        diff.o diff-lib.o diffcore-break.o diffcore-order.o \
@@ -242,20 +244,50 @@ LIB_OBJS = \
        server-info.o setup.o sha1_file.o sha1_name.o strbuf.o \
        tag.o tree.o usage.o config.o environment.o ctype.o copy.o \
        fetch-clone.o revision.o pager.o tree-walk.o xdiff-interface.o \
-       alloc.o merge-file.o path-list.o $(DIFF_OBJS)
+       alloc.o merge-file.o path-list.o help.o unpack-trees.o $(DIFF_OBJS)
 
 BUILTIN_OBJS = \
-       builtin-log.o builtin-help.o builtin-count.o builtin-diff.o builtin-push.o \
-       builtin-grep.o builtin-add.o builtin-rev-list.o builtin-check-ref-format.o \
-       builtin-rm.o builtin-init-db.o builtin-rev-parse.o \
-       builtin-tar-tree.o builtin-upload-tar.o builtin-update-index.o \
-       builtin-ls-files.o builtin-ls-tree.o builtin-write-tree.o \
-       builtin-read-tree.o builtin-commit-tree.o builtin-mailinfo.o \
-       builtin-apply.o builtin-show-branch.o builtin-diff-files.o \
-       builtin-diff-index.o builtin-diff-stages.o builtin-diff-tree.o \
-       builtin-cat-file.o builtin-mailsplit.o builtin-stripspace.o \
-       builtin-update-ref.o builtin-fmt-merge-msg.o builtin-prune.o \
-       builtin-mv.o builtin-prune-packed.o builtin-repo-config.o
+       builtin-add.o \
+       builtin-apply.o \
+       builtin-cat-file.o \
+       builtin-checkout-index.o \
+       builtin-check-ref-format.o \
+       builtin-commit-tree.o \
+       builtin-count-objects.o \
+       builtin-diff.o \
+       builtin-diff-files.o \
+       builtin-diff-index.o \
+       builtin-diff-stages.o \
+       builtin-diff-tree.o \
+       builtin-fmt-merge-msg.o \
+       builtin-grep.o \
+       builtin-init-db.o \
+       builtin-log.o \
+       builtin-ls-files.o \
+       builtin-ls-tree.o \
+       builtin-mailinfo.o \
+       builtin-mailsplit.o \
+       builtin-mv.o \
+       builtin-name-rev.o \
+       builtin-pack-objects.o \
+       builtin-prune.o \
+       builtin-prune-packed.o \
+       builtin-push.o \
+       builtin-read-tree.o \
+       builtin-repo-config.o \
+       builtin-rev-list.o \
+       builtin-rev-parse.o \
+       builtin-rm.o \
+       builtin-show-branch.o \
+       builtin-stripspace.o \
+       builtin-symbolic-ref.o \
+       builtin-tar-tree.o \
+       builtin-unpack-objects.o \
+       builtin-update-index.o \
+       builtin-update-ref.o \
+       builtin-upload-tar.o \
+       builtin-verify-pack.o \
+       builtin-write-tree.o
 
 GITLIBS = $(LIB_FILE) $(XDIFF_LIB)
 LIBS = $(GITLIBS) -lz
@@ -296,7 +328,6 @@ ifeq ($(uname_S),SunOS)
        NEEDS_NSL = YesPlease
        SHELL_PATH = /bin/bash
        NO_STRCASESTR = YesPlease
-       NO_STRLCPY = YesPlease
        ifeq ($(uname_R),5.8)
                NEEDS_LIBICONV = YesPlease
                NO_UNSETENV = YesPlease
@@ -525,7 +556,7 @@ LIB_OBJS += $(COMPAT_OBJS)
 export prefix TAR INSTALL DESTDIR SHELL_PATH template_dir
 ### Build rules
 
-all: $(ALL_PROGRAMS) $(BUILT_INS) git$X gitk
+all: $(ALL_PROGRAMS) $(BUILT_INS) git$X gitk gitweb/gitweb.cgi
 
 all:
        $(MAKE) -C templates
@@ -538,7 +569,7 @@ git$X: git.c common-cmds.h $(BUILTIN_OBJS) $(GITLIBS) GIT-CFLAGS
                $(ALL_CFLAGS) -o $@ $(filter %.c,$^) \
                $(BUILTIN_OBJS) $(ALL_LDFLAGS) $(LIBS)
 
-builtin-help.o: common-cmds.h
+help.o: common-cmds.h
 
 $(BUILT_INS): git$X
        rm -f $@ && ln git$X $@
@@ -583,6 +614,24 @@ git-status: git-commit
        cp $< $@+
        mv $@+ $@
 
+gitweb/gitweb.cgi: gitweb/gitweb.perl
+       rm -f $@ $@+
+       sed -e '1s|#!.*perl|#!$(PERL_PATH_SQ)|' \
+           -e 's|++GIT_VERSION++|$(GIT_VERSION)|g' \
+           -e 's|++GIT_BINDIR++|$(bindir)|g' \
+           -e 's|++GITWEB_CONFIG++|$(GITWEB_CONFIG)|g' \
+           -e 's|++GITWEB_HOME_LINK_STR++|$(GITWEB_HOME_LINK_STR)|g' \
+           -e 's|++GITWEB_SITENAME++|$(GITWEB_SITENAME)|g' \
+           -e 's|++GITWEB_PROJECTROOT++|$(GITWEB_PROJECTROOT)|g' \
+           -e 's|++GITWEB_BASE_URL++|$(GITWEB_BASE_URL)|g' \
+           -e 's|++GITWEB_LIST++|$(GITWEB_LIST)|g' \
+           -e 's|++GITWEB_HOMETEXT++|$(GITWEB_HOMETEXT)|g' \
+           -e 's|++GITWEB_CSS++|$(GITWEB_CSS)|g' \
+           -e 's|++GITWEB_LOGO++|$(GITWEB_LOGO)|g' \
+           $< >$@+
+       chmod +x $@+
+       mv $@+ $@
+
 git-instaweb: git-instaweb.sh gitweb/gitweb.cgi gitweb/gitweb.css
        rm -f $@ $@+
        sed -e '1s|#!.*/sh|#!$(SHELL_PATH_SQ)|' \
@@ -593,10 +642,17 @@ git-instaweb: git-instaweb.sh gitweb/gitweb.cgi gitweb/gitweb.css
            -e '/@@GITWEB_CGI@@/d' \
            -e '/@@GITWEB_CSS@@/r gitweb/gitweb.css' \
            -e '/@@GITWEB_CSS@@/d' \
-           $@.sh | sed "s|/usr/bin/git|$(bindir)/git|" > $@+
+           $@.sh > $@+
        chmod +x $@+
        mv $@+ $@
 
+configure: configure.ac
+       rm -f $@ $<+
+       sed -e 's/@@GIT_VERSION@@/$(GIT_VERSION)/g' \
+           $< > $<+
+       autoconf -o $@ $<+
+       rm -f $<+
+
 # These can record GIT_VERSION
 git$X git.spec \
        $(patsubst %.sh,%,$(SCRIPT_SH)) \
@@ -788,10 +844,11 @@ clean:
        rm -f $(ALL_PROGRAMS) $(BUILT_INS) git$X
        rm -f *.spec *.pyc *.pyo */*.pyc */*.pyo common-cmds.h TAGS tags
        rm -rf autom4te.cache
-       rm -f config.log config.mak.autogen configure config.status config.cache
+       rm -f configure config.log config.mak.autogen config.mak.append config.status config.cache
        rm -rf $(GIT_TARNAME) .doc-tmp-dir
        rm -f $(GIT_TARNAME).tar.gz git-core_$(GIT_VERSION)-*.tar.gz
        rm -f $(htmldocs).tar.gz $(manpages).tar.gz
+       rm -f gitweb/gitweb.cgi
        $(MAKE) -C Documentation/ clean
        $(MAKE) -C templates clean
        $(MAKE) -C t/ clean
diff --git a/blame.c b/blame.c
index 7099b53c72dd3d4f586b6ae4ba7583738225523c..c253b9ca45cf7d860052ddae95bc1ed34974ffb8 100644 (file)
--- a/blame.c
+++ b/blame.c
@@ -56,9 +56,9 @@ struct patch {
 static void get_blob(struct commit *commit);
 
 /* Only used for statistics */
-static int num_get_patch = 0;
-static int num_commits = 0;
-static int patch_time = 0;
+static int num_get_patch;
+static int num_commits;
+static int patch_time;
 
 struct blame_diff_state {
        struct xdiff_emit_state xm;
@@ -351,10 +351,7 @@ static int fill_util_info(struct commit *commit)
        assert(util);
        assert(util->pathname);
 
-       if (get_blob_sha1(commit->tree, util->pathname, util->sha1))
-               return 1;
-       else
-               return 0;
+       return !!get_blob_sha1(commit->tree, util->pathname, util->sha1);
 }
 
 static void alloc_line_map(struct commit *commit)
index 9cf477c701d3224efe86418113691768410beae9..4f0eef0ac3c2d20475b0b50e81f4d51cd4f95396 100644 (file)
@@ -28,17 +28,18 @@ static int prefix_length = -1;
 static int newfd = -1;
 
 static int p_value = 1;
-static int allow_binary_replacement = 0;
-static int check_index = 0;
-static int write_index = 0;
-static int cached = 0;
-static int diffstat = 0;
-static int numstat = 0;
-static int summary = 0;
-static int check = 0;
+static int allow_binary_replacement;
+static int check_index;
+static int write_index;
+static int cached;
+static int diffstat;
+static int numstat;
+static int summary;
+static int check;
 static int apply = 1;
-static int no_add = 0;
-static int show_index_info = 0;
+static int apply_in_reverse;
+static int no_add;
+static int show_index_info;
 static int line_termination = '\n';
 static unsigned long p_context = -1;
 static const char apply_usage[] =
@@ -50,10 +51,10 @@ static enum whitespace_eol {
        error_on_whitespace,
        strip_whitespace,
 } new_whitespace = warn_on_whitespace;
-static int whitespace_error = 0;
+static int whitespace_error;
 static int squelch_whitespace_errors = 5;
-static int applied_after_stripping = 0;
-static const char *patch_input_file = NULL;
+static int applied_after_stripping;
+static const char *patch_input_file;
 
 static void parse_whitespace_option(const char *option)
 {
@@ -108,6 +109,13 @@ static int max_change, max_len;
  */
 static int linenr = 1;
 
+/*
+ * This represents one "hunk" from a patch, starting with
+ * "@@ -oldpos,oldlines +newpos,newlines @@" marker.  The
+ * patch text is pointed at by patch, and its byte length
+ * is stored in size.  leading and trailing are the number
+ * of context lines.
+ */
 struct fragment {
        unsigned long leading, trailing;
        unsigned long oldpos, oldlines;
@@ -117,12 +125,19 @@ struct fragment {
        struct fragment *next;
 };
 
+/*
+ * When dealing with a binary patch, we reuse "leading" field
+ * to store the type of the binary hunk, either deflated "delta"
+ * or deflated "literal".
+ */
+#define binary_patch_method leading
+#define BINARY_DELTA_DEFLATED  1
+#define BINARY_LITERAL_DEFLATED 2
+
 struct patch {
        char *new_name, *old_name, *def_name;
        unsigned int old_mode, new_mode;
-       int is_rename, is_copy, is_new, is_delete, is_binary, is_reverse;
-#define BINARY_DELTA_DEFLATED 1
-#define BINARY_LITERAL_DEFLATED 2
+       int is_rename, is_copy, is_new, is_delete, is_binary;
        unsigned long deflate_origlen;
        int lines_added, lines_deleted;
        int score;
@@ -978,43 +993,70 @@ static inline int metadata_changes(struct patch *patch)
                 patch->old_mode != patch->new_mode);
 }
 
-static int parse_binary(char *buffer, unsigned long size, struct patch *patch)
+static char *inflate_it(const void *data, unsigned long size,
+                       unsigned long inflated_size)
 {
-       /* We have read "GIT binary patch\n"; what follows is a line
-        * that says the patch method (currently, either "deflated
-        * literal" or "deflated delta") and the length of data before
-        * deflating; a sequence of 'length-byte' followed by base-85
-        * encoded data follows.
+       z_stream stream;
+       void *out;
+       int st;
+
+       memset(&stream, 0, sizeof(stream));
+
+       stream.next_in = (unsigned char *)data;
+       stream.avail_in = size;
+       stream.next_out = out = xmalloc(inflated_size);
+       stream.avail_out = inflated_size;
+       inflateInit(&stream);
+       st = inflate(&stream, Z_FINISH);
+       if ((st != Z_STREAM_END) || stream.total_out != inflated_size) {
+               free(out);
+               return NULL;
+       }
+       return out;
+}
+
+static struct fragment *parse_binary_hunk(char **buf_p,
+                                         unsigned long *sz_p,
+                                         int *status_p,
+                                         int *used_p)
+{
+       /* Expect a line that begins with binary patch method ("literal"
+        * or "delta"), followed by the length of data before deflating.
+        * a sequence of 'length-byte' followed by base-85 encoded data
+        * should follow, terminated by a newline.
         *
         * Each 5-byte sequence of base-85 encodes up to 4 bytes,
         * and we would limit the patch line to 66 characters,
         * so one line can fit up to 13 groups that would decode
         * to 52 bytes max.  The length byte 'A'-'Z' corresponds
         * to 1-26 bytes, and 'a'-'z' corresponds to 27-52 bytes.
-        * The end of binary is signaled with an empty line.
         */
        int llen, used;
-       struct fragment *fragment;
+       unsigned long size = *sz_p;
+       char *buffer = *buf_p;
+       int patch_method;
+       unsigned long origlen;
        char *data = NULL;
+       int hunk_size = 0;
+       struct fragment *frag;
 
-       patch->fragments = fragment = xcalloc(1, sizeof(*fragment));
-
-       /* Grab the type of patch */
        llen = linelen(buffer, size);
        used = llen;
-       linenr++;
+
+       *status_p = 0;
 
        if (!strncmp(buffer, "delta ", 6)) {
-               patch->is_binary = BINARY_DELTA_DEFLATED;
-               patch->deflate_origlen = strtoul(buffer + 6, NULL, 10);
+               patch_method = BINARY_DELTA_DEFLATED;
+               origlen = strtoul(buffer + 6, NULL, 10);
        }
        else if (!strncmp(buffer, "literal ", 8)) {
-               patch->is_binary = BINARY_LITERAL_DEFLATED;
-               patch->deflate_origlen = strtoul(buffer + 8, NULL, 10);
+               patch_method = BINARY_LITERAL_DEFLATED;
+               origlen = strtoul(buffer + 8, NULL, 10);
        }
        else
-               return error("unrecognized binary patch at line %d: %.*s",
-                            linenr-1, llen-1, buffer);
+               return NULL;
+
+       linenr++;
        buffer += llen;
        while (1) {
                int byte_length, max_byte_length, newsize;
@@ -1043,21 +1085,79 @@ static int parse_binary(char *buffer, unsigned long size, struct patch *patch)
                if (max_byte_length < byte_length ||
                    byte_length <= max_byte_length - 4)
                        goto corrupt;
-               newsize = fragment->size + byte_length;
+               newsize = hunk_size + byte_length;
                data = xrealloc(data, newsize);
-               if (decode_85(data + fragment->size,
-                             buffer + 1,
-                             byte_length))
+               if (decode_85(data + hunk_size, buffer + 1, byte_length))
                        goto corrupt;
-               fragment->size = newsize;
+               hunk_size = newsize;
                buffer += llen;
                size -= llen;
        }
-       fragment->patch = data;
-       return used;
+
+       frag = xcalloc(1, sizeof(*frag));
+       frag->patch = inflate_it(data, hunk_size, origlen);
+       if (!frag->patch)
+               goto corrupt;
+       free(data);
+       frag->size = origlen;
+       *buf_p = buffer;
+       *sz_p = size;
+       *used_p = used;
+       frag->binary_patch_method = patch_method;
+       return frag;
+
  corrupt:
-       return error("corrupt binary patch at line %d: %.*s",
-                    linenr-1, llen-1, buffer);
+       if (data)
+               free(data);
+       *status_p = -1;
+       error("corrupt binary patch at line %d: %.*s",
+             linenr-1, llen-1, buffer);
+       return NULL;
+}
+
+static int parse_binary(char *buffer, unsigned long size, struct patch *patch)
+{
+       /* We have read "GIT binary patch\n"; what follows is a line
+        * that says the patch method (currently, either "literal" or
+        * "delta") and the length of data before deflating; a
+        * sequence of 'length-byte' followed by base-85 encoded data
+        * follows.
+        *
+        * When a binary patch is reversible, there is another binary
+        * hunk in the same format, starting with patch method (either
+        * "literal" or "delta") with the length of data, and a sequence
+        * of length-byte + base-85 encoded data, terminated with another
+        * empty line.  This data, when applied to the postimage, produces
+        * the preimage.
+        */
+       struct fragment *forward;
+       struct fragment *reverse;
+       int status;
+       int used, used_1;
+
+       forward = parse_binary_hunk(&buffer, &size, &status, &used);
+       if (!forward && !status)
+               /* there has to be one hunk (forward hunk) */
+               return error("unrecognized binary patch at line %d", linenr-1);
+       if (status)
+               /* otherwise we already gave an error message */
+               return status;
+
+       reverse = parse_binary_hunk(&buffer, &size, &status, &used_1);
+       if (reverse)
+               used += used_1;
+       else if (status) {
+               /* not having reverse hunk is not an error, but having
+                * a corrupt reverse hunk is.
+                */
+               free((void*) forward->patch);
+               free(forward);
+               return status;
+       }
+       forward->next = reverse;
+       patch->fragments = forward;
+       patch->is_binary = 1;
+       return used;
 }
 
 static int parse_chunk(char *buffer, unsigned long size, struct patch *patch)
@@ -1143,7 +1243,6 @@ static void reverse_patches(struct patch *p)
                        swap(frag->newpos, frag->oldpos);
                        swap(frag->newlines, frag->oldlines);
                }
-               p->is_reverse = !p->is_reverse;
        }
 }
 
@@ -1363,8 +1462,7 @@ static int apply_line(char *output, const char *patch, int plen)
        return plen;
 }
 
-static int apply_one_fragment(struct buffer_desc *desc, struct fragment *frag,
-       int reverse, int inaccurate_eof)
+static int apply_one_fragment(struct buffer_desc *desc, struct fragment *frag, int inaccurate_eof)
 {
        int match_beginning, match_end;
        char *buf = desc->buffer;
@@ -1396,7 +1494,7 @@ static int apply_one_fragment(struct buffer_desc *desc, struct fragment *frag,
                if (len < size && patch[len] == '\\')
                        plen--;
                first = *patch;
-               if (reverse) {
+               if (apply_in_reverse) {
                        if (first == '-')
                                first = '+';
                        else if (first == '+')
@@ -1506,28 +1604,6 @@ static int apply_one_fragment(struct buffer_desc *desc, struct fragment *frag,
        return offset;
 }
 
-static char *inflate_it(const void *data, unsigned long size,
-                       unsigned long inflated_size)
-{
-       z_stream stream;
-       void *out;
-       int st;
-
-       memset(&stream, 0, sizeof(stream));
-
-       stream.next_in = (unsigned char *)data;
-       stream.avail_in = size;
-       stream.next_out = out = xmalloc(inflated_size);
-       stream.avail_out = inflated_size;
-       inflateInit(&stream);
-       st = inflate(&stream, Z_FINISH);
-       if ((st != Z_STREAM_END) || stream.total_out != inflated_size) {
-               free(out);
-               return NULL;
-       }
-       return out;
-}
-
 static int apply_binary_fragment(struct buffer_desc *desc, struct patch *patch)
 {
        unsigned long dst_size;
@@ -1535,30 +1611,29 @@ static int apply_binary_fragment(struct buffer_desc *desc, struct patch *patch)
        void *data;
        void *result;
 
-       /* Binary patch is irreversible */
-       if (patch->is_reverse)
-               return error("cannot reverse-apply a binary patch to '%s'",
-                            patch->new_name
-                            ? patch->new_name : patch->old_name);
-
-       data = inflate_it(fragment->patch, fragment->size,
-                         patch->deflate_origlen);
-       if (!data)
-               return error("corrupt patch data");
-       switch (patch->is_binary) {
+       /* Binary patch is irreversible without the optional second hunk */
+       if (apply_in_reverse) {
+               if (!fragment->next)
+                       return error("cannot reverse-apply a binary patch "
+                                    "without the reverse hunk to '%s'",
+                                    patch->new_name
+                                    ? patch->new_name : patch->old_name);
+               fragment = fragment;
+       }
+       data = (void*) fragment->patch;
+       switch (fragment->binary_patch_method) {
        case BINARY_DELTA_DEFLATED:
                result = patch_delta(desc->buffer, desc->size,
                                     data,
-                                    patch->deflate_origlen,
+                                    fragment->size,
                                     &dst_size);
                free(desc->buffer);
                desc->buffer = result;
-               free(data);
                break;
        case BINARY_LITERAL_DEFLATED:
                free(desc->buffer);
                desc->buffer = data;
-               dst_size = patch->deflate_origlen;
+               dst_size = fragment->size;
                break;
        }
        if (!desc->buffer)
@@ -1609,7 +1684,7 @@ static int apply_binary(struct buffer_desc *desc, struct patch *patch)
        }
 
        get_sha1_hex(patch->new_sha1_prefix, sha1);
-       if (!memcmp(sha1, null_sha1, 20)) {
+       if (is_null_sha1(sha1)) {
                free(desc->buffer);
                desc->alloc = desc->size = 0;
                desc->buffer = NULL;
@@ -1657,8 +1732,7 @@ static int apply_fragments(struct buffer_desc *desc, struct patch *patch)
                return apply_binary(desc, patch);
 
        while (frag) {
-               if (apply_one_fragment(desc, frag, patch->is_reverse,
-                                       patch->inaccurate_eof) < 0)
+               if (apply_one_fragment(desc, frag, patch->inaccurate_eof) < 0)
                        return error("patch failed: %s:%ld",
                                     name, frag->oldpos);
                frag = frag->next;
@@ -1842,11 +1916,6 @@ static int check_patch_list(struct patch *patch)
        return error;
 }
 
-static inline int is_null_sha1(const unsigned char *sha1)
-{
-       return !memcmp(sha1, null_sha1, 20);
-}
-
 static void show_index_list(struct patch *list)
 {
        struct patch *patch;
@@ -2194,8 +2263,7 @@ static int use_patch(struct patch *p)
        return 1;
 }
 
-static int apply_patch(int fd, const char *filename,
-               int reverse, int inaccurate_eof)
+static int apply_patch(int fd, const char *filename, int inaccurate_eof)
 {
        unsigned long offset, size;
        char *buffer = read_patch_file(fd, &size);
@@ -2215,7 +2283,7 @@ static int apply_patch(int fd, const char *filename,
                nr = parse_chunk(buffer + offset, size, patch);
                if (nr < 0)
                        break;
-               if (reverse)
+               if (apply_in_reverse)
                        reverse_patches(patch);
                if (use_patch(patch)) {
                        patch_stats(patch);
@@ -2278,7 +2346,6 @@ int cmd_apply(int argc, const char **argv, const char *prefix)
 {
        int i;
        int read_stdin = 1;
-       int reverse = 0;
        int inaccurate_eof = 0;
 
        const char *whitespace_option = NULL;
@@ -2289,7 +2356,7 @@ int cmd_apply(int argc, const char **argv, const char *prefix)
                int fd;
 
                if (!strcmp(arg, "-")) {
-                       apply_patch(0, "<stdin>", reverse, inaccurate_eof);
+                       apply_patch(0, "<stdin>", inaccurate_eof);
                        read_stdin = 0;
                        continue;
                }
@@ -2367,7 +2434,7 @@ int cmd_apply(int argc, const char **argv, const char *prefix)
                        continue;
                }
                if (!strcmp(arg, "-R") || !strcmp(arg, "--reverse")) {
-                       reverse = 1;
+                       apply_in_reverse = 1;
                        continue;
                }
                if (!strcmp(arg, "--inaccurate-eof")) {
@@ -2390,12 +2457,12 @@ int cmd_apply(int argc, const char **argv, const char *prefix)
                        usage(apply_usage);
                read_stdin = 0;
                set_default_whitespace_mode(whitespace_option);
-               apply_patch(fd, arg, reverse, inaccurate_eof);
+               apply_patch(fd, arg, inaccurate_eof);
                close(fd);
        }
        set_default_whitespace_mode(whitespace_option);
        if (read_stdin)
-               apply_patch(0, "<stdin>", reverse, inaccurate_eof);
+               apply_patch(0, "<stdin>", inaccurate_eof);
        if (whitespace_error) {
                if (squelch_whitespace_errors &&
                    squelch_whitespace_errors < whitespace_error) {
index 814fb0743f7a453114991af6c28bb69ef44d4883..df009ade7aae3ad82974a915efa16525e76ccaed 100644 (file)
@@ -26,7 +26,7 @@ static void flush_buffer(const char *buf, unsigned long size)
        }
 }
 
-static int pprint_tag(const unsigned char *sha1, const char *buf, unsigned long size)
+static void pprint_tag(const unsigned char *sha1, const char *buf, unsigned long size)
 {
        /* the parser in tag.c is useless here. */
        const char *endp = buf + size;
@@ -91,7 +91,6 @@ static int pprint_tag(const unsigned char *sha1, const char *buf, unsigned long
         */
        if (cp < endp)
                flush_buffer(cp, endp - cp);
-       return 0;
 }
 
 int cmd_cat_file(int argc, const char **argv, const char *prefix)
@@ -145,8 +144,10 @@ int cmd_cat_file(int argc, const char **argv, const char *prefix)
                buf = read_sha1_file(sha1, type, &size);
                if (!buf)
                        die("Cannot read object %s", argv[2]);
-               if (!strcmp(type, tag_type))
-                       return pprint_tag(sha1, buf, size);
+               if (!strcmp(type, tag_type)) {
+                       pprint_tag(sha1, buf, size);
+                       return 0;
+               }
 
                /* otherwise just spit out the data */
                break;
diff --git a/builtin-checkout-index.c b/builtin-checkout-index.c
new file mode 100644 (file)
index 0000000..6b55f93
--- /dev/null
@@ -0,0 +1,308 @@
+/*
+ * Check-out files from the "current cache directory"
+ *
+ * Copyright (C) 2005 Linus Torvalds
+ *
+ * Careful: order of argument flags does matter. For example,
+ *
+ *     git-checkout-index -a -f file.c
+ *
+ * Will first check out all files listed in the cache (but not
+ * overwrite any old ones), and then force-checkout "file.c" a
+ * second time (ie that one _will_ overwrite any old contents
+ * with the same filename).
+ *
+ * Also, just doing "git-checkout-index" does nothing. You probably
+ * meant "git-checkout-index -a". And if you want to force it, you
+ * want "git-checkout-index -f -a".
+ *
+ * Intuitiveness is not the goal here. Repeatability is. The
+ * reason for the "no arguments means no work" thing is that
+ * from scripts you are supposed to be able to do things like
+ *
+ *     find . -name '*.h' -print0 | xargs -0 git-checkout-index -f --
+ *
+ * or:
+ *
+ *     find . -name '*.h' -print0 | git-checkout-index -f -z --stdin
+ *
+ * which will force all existing *.h files to be replaced with
+ * their cached copies. If an empty command line implied "all",
+ * then this would force-refresh everything in the cache, which
+ * was not the point.
+ *
+ * Oh, and the "--" is just a good idea when you know the rest
+ * will be filenames. Just so that you wouldn't have a filename
+ * of "-a" causing problems (not possible in the above example,
+ * but get used to it in scripting!).
+ */
+#include "cache.h"
+#include "strbuf.h"
+#include "quote.h"
+#include "cache-tree.h"
+
+#define CHECKOUT_ALL 4
+static int line_termination = '\n';
+static int checkout_stage; /* default to checkout stage0 */
+static int to_tempfile;
+static char topath[4][MAXPATHLEN+1];
+
+static struct checkout state;
+
+static void write_tempfile_record(const char *name, int prefix_length)
+{
+       int i;
+
+       if (CHECKOUT_ALL == checkout_stage) {
+               for (i = 1; i < 4; i++) {
+                       if (i > 1)
+                               putchar(' ');
+                       if (topath[i][0])
+                               fputs(topath[i], stdout);
+                       else
+                               putchar('.');
+               }
+       } else
+               fputs(topath[checkout_stage], stdout);
+
+       putchar('\t');
+       write_name_quoted("", 0, name + prefix_length,
+               line_termination, stdout);
+       putchar(line_termination);
+
+       for (i = 0; i < 4; i++) {
+               topath[i][0] = 0;
+       }
+}
+
+static int checkout_file(const char *name, int prefix_length)
+{
+       int namelen = strlen(name);
+       int pos = cache_name_pos(name, namelen);
+       int has_same_name = 0;
+       int did_checkout = 0;
+       int errs = 0;
+
+       if (pos < 0)
+               pos = -pos - 1;
+
+       while (pos < active_nr) {
+               struct cache_entry *ce = active_cache[pos];
+               if (ce_namelen(ce) != namelen ||
+                   memcmp(ce->name, name, namelen))
+                       break;
+               has_same_name = 1;
+               pos++;
+               if (ce_stage(ce) != checkout_stage
+                   && (CHECKOUT_ALL != checkout_stage || !ce_stage(ce)))
+                       continue;
+               did_checkout = 1;
+               if (checkout_entry(ce, &state,
+                   to_tempfile ? topath[ce_stage(ce)] : NULL) < 0)
+                       errs++;
+       }
+
+       if (did_checkout) {
+               if (to_tempfile)
+                       write_tempfile_record(name, prefix_length);
+               return errs > 0 ? -1 : 0;
+       }
+
+       if (!state.quiet) {
+               fprintf(stderr, "git-checkout-index: %s ", name);
+               if (!has_same_name)
+                       fprintf(stderr, "is not in the cache");
+               else if (checkout_stage)
+                       fprintf(stderr, "does not exist at stage %d",
+                               checkout_stage);
+               else
+                       fprintf(stderr, "is unmerged");
+               fputc('\n', stderr);
+       }
+       return -1;
+}
+
+static void checkout_all(const char *prefix, int prefix_length)
+{
+       int i, errs = 0;
+       struct cache_entry* last_ce = NULL;
+
+       for (i = 0; i < active_nr ; i++) {
+               struct cache_entry *ce = active_cache[i];
+               if (ce_stage(ce) != checkout_stage
+                   && (CHECKOUT_ALL != checkout_stage || !ce_stage(ce)))
+                       continue;
+               if (prefix && *prefix &&
+                   (ce_namelen(ce) <= prefix_length ||
+                    memcmp(prefix, ce->name, prefix_length)))
+                       continue;
+               if (last_ce && to_tempfile) {
+                       if (ce_namelen(last_ce) != ce_namelen(ce)
+                           || memcmp(last_ce->name, ce->name, ce_namelen(ce)))
+                               write_tempfile_record(last_ce->name, prefix_length);
+               }
+               if (checkout_entry(ce, &state,
+                   to_tempfile ? topath[ce_stage(ce)] : NULL) < 0)
+                       errs++;
+               last_ce = ce;
+       }
+       if (last_ce && to_tempfile)
+               write_tempfile_record(last_ce->name, prefix_length);
+       if (errs)
+               /* we have already done our error reporting.
+                * exit with the same code as die().
+                */
+               exit(128);
+}
+
+static const char checkout_cache_usage[] =
+"git-checkout-index [-u] [-q] [-a] [-f] [-n] [--stage=[123]|all] [--prefix=<string>] [--temp] [--] <file>...";
+
+static struct lock_file lock_file;
+
+int cmd_checkout_index(int argc, const char **argv, const char *prefix)
+{
+       int i;
+       int newfd = -1;
+       int all = 0;
+       int read_from_stdin = 0;
+       int prefix_length;
+
+       git_config(git_default_config);
+       state.base_dir = "";
+       prefix_length = prefix ? strlen(prefix) : 0;
+
+       if (read_cache() < 0) {
+               die("invalid cache");
+       }
+
+       for (i = 1; i < argc; i++) {
+               const char *arg = argv[i];
+
+               if (!strcmp(arg, "--")) {
+                       i++;
+                       break;
+               }
+               if (!strcmp(arg, "-a") || !strcmp(arg, "--all")) {
+                       all = 1;
+                       continue;
+               }
+               if (!strcmp(arg, "-f") || !strcmp(arg, "--force")) {
+                       state.force = 1;
+                       continue;
+               }
+               if (!strcmp(arg, "-q") || !strcmp(arg, "--quiet")) {
+                       state.quiet = 1;
+                       continue;
+               }
+               if (!strcmp(arg, "-n") || !strcmp(arg, "--no-create")) {
+                       state.not_new = 1;
+                       continue;
+               }
+               if (!strcmp(arg, "-u") || !strcmp(arg, "--index")) {
+                       state.refresh_cache = 1;
+                       if (newfd < 0)
+                               newfd = hold_lock_file_for_update
+                                       (&lock_file, get_index_file(), 1);
+                       if (newfd < 0)
+                               die("cannot open index.lock file.");
+                       continue;
+               }
+               if (!strcmp(arg, "-z")) {
+                       line_termination = 0;
+                       continue;
+               }
+               if (!strcmp(arg, "--stdin")) {
+                       if (i != argc - 1)
+                               die("--stdin must be at the end");
+                       read_from_stdin = 1;
+                       i++; /* do not consider arg as a file name */
+                       break;
+               }
+               if (!strcmp(arg, "--temp")) {
+                       to_tempfile = 1;
+                       continue;
+               }
+               if (!strncmp(arg, "--prefix=", 9)) {
+                       state.base_dir = arg+9;
+                       state.base_dir_len = strlen(state.base_dir);
+                       continue;
+               }
+               if (!strncmp(arg, "--stage=", 8)) {
+                       if (!strcmp(arg + 8, "all")) {
+                               to_tempfile = 1;
+                               checkout_stage = CHECKOUT_ALL;
+                       } else {
+                               int ch = arg[8];
+                               if ('1' <= ch && ch <= '3')
+                                       checkout_stage = arg[8] - '0';
+                               else
+                                       die("stage should be between 1 and 3 or all");
+                       }
+                       continue;
+               }
+               if (arg[0] == '-')
+                       usage(checkout_cache_usage);
+               break;
+       }
+
+       if (state.base_dir_len || to_tempfile) {
+               /* when --prefix is specified we do not
+                * want to update cache.
+                */
+               if (state.refresh_cache) {
+                       close(newfd); newfd = -1;
+                       rollback_lock_file(&lock_file);
+               }
+               state.refresh_cache = 0;
+       }
+
+       /* Check out named files first */
+       for ( ; i < argc; i++) {
+               const char *arg = argv[i];
+               const char *p;
+
+               if (all)
+                       die("git-checkout-index: don't mix '--all' and explicit filenames");
+               if (read_from_stdin)
+                       die("git-checkout-index: don't mix '--stdin' and explicit filenames");
+               p = prefix_path(prefix, prefix_length, arg);
+               checkout_file(p, prefix_length);
+               if (p < arg || p > arg + strlen(arg))
+                       free((char*)p);
+       }
+
+       if (read_from_stdin) {
+               struct strbuf buf;
+               if (all)
+                       die("git-checkout-index: don't mix '--all' and '--stdin'");
+               strbuf_init(&buf);
+               while (1) {
+                       char *path_name;
+                       const char *p;
+
+                       read_line(&buf, stdin, line_termination);
+                       if (buf.eof)
+                               break;
+                       if (line_termination && buf.buf[0] == '"')
+                               path_name = unquote_c_style(buf.buf, NULL);
+                       else
+                               path_name = buf.buf;
+                       p = prefix_path(prefix, prefix_length, path_name);
+                       checkout_file(p, prefix_length);
+                       if (p < path_name || p > path_name + strlen(path_name))
+                               free((char *)p);
+                       if (path_name != buf.buf)
+                               free(path_name);
+               }
+       }
+
+       if (all)
+               checkout_all(prefix, prefix_length);
+
+       if (0 <= newfd &&
+           (write_cache(newfd, active_cache, active_nr) ||
+            close(newfd) || commit_lock_file(&lock_file)))
+               die("Unable to write new index file");
+       return 0;
+}
diff --git a/builtin-count-objects.c b/builtin-count-objects.c
new file mode 100644 (file)
index 0000000..1d3729a
--- /dev/null
@@ -0,0 +1,125 @@
+/*
+ * Builtin "git count-objects".
+ *
+ * Copyright (c) 2006 Junio C Hamano
+ */
+
+#include "cache.h"
+#include "builtin.h"
+
+static const char count_objects_usage[] = "git-count-objects [-v]";
+
+static void count_objects(DIR *d, char *path, int len, int verbose,
+                         unsigned long *loose,
+                         unsigned long *loose_size,
+                         unsigned long *packed_loose,
+                         unsigned long *garbage)
+{
+       struct dirent *ent;
+       while ((ent = readdir(d)) != NULL) {
+               char hex[41];
+               unsigned char sha1[20];
+               const char *cp;
+               int bad = 0;
+
+               if ((ent->d_name[0] == '.') &&
+                   (ent->d_name[1] == 0 ||
+                    ((ent->d_name[1] == '.') && (ent->d_name[2] == 0))))
+                       continue;
+               for (cp = ent->d_name; *cp; cp++) {
+                       int ch = *cp;
+                       if (('0' <= ch && ch <= '9') ||
+                           ('a' <= ch && ch <= 'f'))
+                               continue;
+                       bad = 1;
+                       break;
+               }
+               if (cp - ent->d_name != 38)
+                       bad = 1;
+               else {
+                       struct stat st;
+                       memcpy(path + len + 3, ent->d_name, 38);
+                       path[len + 2] = '/';
+                       path[len + 41] = 0;
+                       if (lstat(path, &st) || !S_ISREG(st.st_mode))
+                               bad = 1;
+                       else
+                               (*loose_size) += st.st_blocks;
+               }
+               if (bad) {
+                       if (verbose) {
+                               error("garbage found: %.*s/%s",
+                                     len + 2, path, ent->d_name);
+                               (*garbage)++;
+                       }
+                       continue;
+               }
+               (*loose)++;
+               if (!verbose)
+                       continue;
+               memcpy(hex, path+len, 2);
+               memcpy(hex+2, ent->d_name, 38);
+               hex[40] = 0;
+               if (get_sha1_hex(hex, sha1))
+                       die("internal error");
+               if (has_sha1_pack(sha1))
+                       (*packed_loose)++;
+       }
+}
+
+int cmd_count_objects(int ac, const char **av, const char *prefix)
+{
+       int i;
+       int verbose = 0;
+       const char *objdir = get_object_directory();
+       int len = strlen(objdir);
+       char *path = xmalloc(len + 50);
+       unsigned long loose = 0, packed = 0, packed_loose = 0, garbage = 0;
+       unsigned long loose_size = 0;
+
+       for (i = 1; i < ac; i++) {
+               const char *arg = av[i];
+               if (*arg != '-')
+                       break;
+               else if (!strcmp(arg, "-v"))
+                       verbose = 1;
+               else
+                       usage(count_objects_usage);
+       }
+
+       /* we do not take arguments other than flags for now */
+       if (i < ac)
+               usage(count_objects_usage);
+       memcpy(path, objdir, len);
+       if (len && objdir[len-1] != '/')
+               path[len++] = '/';
+       for (i = 0; i < 256; i++) {
+               DIR *d;
+               sprintf(path + len, "%02x", i);
+               d = opendir(path);
+               if (!d)
+                       continue;
+               count_objects(d, path, len, verbose,
+                             &loose, &loose_size, &packed_loose, &garbage);
+               closedir(d);
+       }
+       if (verbose) {
+               struct packed_git *p;
+               if (!packed_git)
+                       prepare_packed_git();
+               for (p = packed_git; p; p = p->next) {
+                       if (!p->pack_local)
+                               continue;
+                       packed += num_packed_objects(p);
+               }
+               printf("count: %lu\n", loose);
+               printf("size: %lu\n", loose_size / 2);
+               printf("in-pack: %lu\n", packed);
+               printf("prune-packable: %lu\n", packed_loose);
+               printf("garbage: %lu\n", garbage);
+       }
+       else
+               printf("%lu objects, %lu kilobytes\n",
+                      loose, loose_size / 2);
+       return 0;
+}
diff --git a/builtin-count.c b/builtin-count.c
deleted file mode 100644 (file)
index 1d3729a..0000000
+++ /dev/null
@@ -1,125 +0,0 @@
-/*
- * Builtin "git count-objects".
- *
- * Copyright (c) 2006 Junio C Hamano
- */
-
-#include "cache.h"
-#include "builtin.h"
-
-static const char count_objects_usage[] = "git-count-objects [-v]";
-
-static void count_objects(DIR *d, char *path, int len, int verbose,
-                         unsigned long *loose,
-                         unsigned long *loose_size,
-                         unsigned long *packed_loose,
-                         unsigned long *garbage)
-{
-       struct dirent *ent;
-       while ((ent = readdir(d)) != NULL) {
-               char hex[41];
-               unsigned char sha1[20];
-               const char *cp;
-               int bad = 0;
-
-               if ((ent->d_name[0] == '.') &&
-                   (ent->d_name[1] == 0 ||
-                    ((ent->d_name[1] == '.') && (ent->d_name[2] == 0))))
-                       continue;
-               for (cp = ent->d_name; *cp; cp++) {
-                       int ch = *cp;
-                       if (('0' <= ch && ch <= '9') ||
-                           ('a' <= ch && ch <= 'f'))
-                               continue;
-                       bad = 1;
-                       break;
-               }
-               if (cp - ent->d_name != 38)
-                       bad = 1;
-               else {
-                       struct stat st;
-                       memcpy(path + len + 3, ent->d_name, 38);
-                       path[len + 2] = '/';
-                       path[len + 41] = 0;
-                       if (lstat(path, &st) || !S_ISREG(st.st_mode))
-                               bad = 1;
-                       else
-                               (*loose_size) += st.st_blocks;
-               }
-               if (bad) {
-                       if (verbose) {
-                               error("garbage found: %.*s/%s",
-                                     len + 2, path, ent->d_name);
-                               (*garbage)++;
-                       }
-                       continue;
-               }
-               (*loose)++;
-               if (!verbose)
-                       continue;
-               memcpy(hex, path+len, 2);
-               memcpy(hex+2, ent->d_name, 38);
-               hex[40] = 0;
-               if (get_sha1_hex(hex, sha1))
-                       die("internal error");
-               if (has_sha1_pack(sha1))
-                       (*packed_loose)++;
-       }
-}
-
-int cmd_count_objects(int ac, const char **av, const char *prefix)
-{
-       int i;
-       int verbose = 0;
-       const char *objdir = get_object_directory();
-       int len = strlen(objdir);
-       char *path = xmalloc(len + 50);
-       unsigned long loose = 0, packed = 0, packed_loose = 0, garbage = 0;
-       unsigned long loose_size = 0;
-
-       for (i = 1; i < ac; i++) {
-               const char *arg = av[i];
-               if (*arg != '-')
-                       break;
-               else if (!strcmp(arg, "-v"))
-                       verbose = 1;
-               else
-                       usage(count_objects_usage);
-       }
-
-       /* we do not take arguments other than flags for now */
-       if (i < ac)
-               usage(count_objects_usage);
-       memcpy(path, objdir, len);
-       if (len && objdir[len-1] != '/')
-               path[len++] = '/';
-       for (i = 0; i < 256; i++) {
-               DIR *d;
-               sprintf(path + len, "%02x", i);
-               d = opendir(path);
-               if (!d)
-                       continue;
-               count_objects(d, path, len, verbose,
-                             &loose, &loose_size, &packed_loose, &garbage);
-               closedir(d);
-       }
-       if (verbose) {
-               struct packed_git *p;
-               if (!packed_git)
-                       prepare_packed_git();
-               for (p = packed_git; p; p = p->next) {
-                       if (!p->pack_local)
-                               continue;
-                       packed += num_packed_objects(p);
-               }
-               printf("count: %lu\n", loose);
-               printf("size: %lu\n", loose_size / 2);
-               printf("in-pack: %lu\n", packed);
-               printf("prune-packable: %lu\n", packed_loose);
-               printf("garbage: %lu\n", garbage);
-       }
-       else
-               printf("%lu objects, %lu kilobytes\n",
-                      loose, loose_size / 2);
-       return 0;
-}
index ac13db70ff741240f1f27f98dfe09614da4ea87c..5d4a5c5828d1202b6d6b2eadffc51fc131a37dc5 100644 (file)
@@ -47,12 +47,5 @@ int cmd_diff_files(int argc, const char **argv, const char *prefix)
        if (rev.pending.nr ||
            rev.min_age != -1 || rev.max_age != -1)
                usage(diff_files_usage);
-       /*
-        * Backward compatibility wart - "diff-files -s" used to
-        * defeat the common diff option "-s" which asked for
-        * DIFF_FORMAT_NO_OUTPUT.
-        */
-       if (rev.diffopt.output_format == DIFF_FORMAT_NO_OUTPUT)
-               rev.diffopt.output_format = DIFF_FORMAT_RAW;
        return run_diff_files(&rev, silent);
 }
index a090e298a55ef110a6fdd0e0dde54ea744a52f76..40e5c96f30e3d638c09b276805158bdba3ddde58 100644 (file)
@@ -56,13 +56,6 @@ static int builtin_diff_files(struct rev_info *revs,
        if (revs->max_count < 0 &&
            (revs->diffopt.output_format & DIFF_FORMAT_PATCH))
                revs->combine_merges = revs->dense_combined_merges = 1;
-       /*
-        * Backward compatibility wart - "diff-files -s" used to
-        * defeat the common diff option "-s" which asked for
-        * DIFF_FORMAT_NO_OUTPUT.
-        */
-       if (revs->diffopt.output_format == DIFF_FORMAT_NO_OUTPUT)
-               revs->diffopt.output_format = DIFF_FORMAT_RAW;
        return run_diff_files(revs, silent);
 }
 
@@ -75,8 +68,7 @@ static void stuff_change(struct diff_options *opt,
 {
        struct diff_filespec *one, *two;
 
-       if (memcmp(null_sha1, old_sha1, 20) &&
-           memcmp(null_sha1, new_sha1, 20) &&
+       if (!is_null_sha1(old_sha1) && !is_null_sha1(new_sha1) &&
            !memcmp(old_sha1, new_sha1, 20))
                return;
 
index 485ede7cad65f7fd69e2dbaff6b32b8ad3051c54..28b5dfd054ea8277379d6913b1f1c4cde225e70d 100644 (file)
@@ -8,7 +8,7 @@
 static const char *fmt_merge_msg_usage =
        "git-fmt-merge-msg [--summary] [--no-summary] [--file <file>]";
 
-static int merge_summary = 0;
+static int merge_summary;
 
 static int fmt_merge_msg_config(const char *key, const char *value)
 {
index 93b7e07b30ced0b4f4bad544d9bd8dbedadf452c..0bd517b2649af37d9980f85e784f9a00c3263922 100644 (file)
@@ -123,6 +123,7 @@ struct grep_opt {
        struct grep_pat *pattern_list;
        struct grep_pat **pattern_tail;
        struct grep_expr *pattern_expression;
+       int prefix_length;
        regex_t regexp;
        unsigned linenum:1;
        unsigned invert:1;
@@ -136,6 +137,7 @@ struct grep_opt {
 #define GREP_BINARY_TEXT       2
        unsigned binary:2;
        unsigned extended:1;
+       unsigned relative:1;
        int regflags;
        unsigned pre_context;
        unsigned post_context;
@@ -173,61 +175,12 @@ static void compile_regexp(struct grep_pat *p, struct grep_opt *opt)
        }
 }
 
-#if DEBUG
-static inline void indent(int in)
-{
-       int i;
-       for (i = 0; i < in; i++) putchar(' ');
-}
-
-static void dump_pattern_exp(struct grep_expr *x, int in)
-{
-       switch (x->node) {
-       case GREP_NODE_ATOM:
-               indent(in);
-               puts(x->u.atom->pattern);
-               break;
-       case GREP_NODE_NOT:
-               indent(in);
-               puts("--not");
-               dump_pattern_exp(x->u.unary, in+1);
-               break;
-       case GREP_NODE_AND:
-               dump_pattern_exp(x->u.binary.left, in+1);
-               indent(in);
-               puts("--and");
-               dump_pattern_exp(x->u.binary.right, in+1);
-               break;
-       case GREP_NODE_OR:
-               dump_pattern_exp(x->u.binary.left, in+1);
-               indent(in);
-               puts("--or");
-               dump_pattern_exp(x->u.binary.right, in+1);
-               break;
-       }
-}
-
-static void looking_at(const char *msg, struct grep_pat **list)
-{
-       struct grep_pat *p = *list;
-       fprintf(stderr, "%s: looking at ", msg);
-       if (!p)
-               fprintf(stderr, "empty\n");
-       else
-               fprintf(stderr, "<%s>\n", p->pattern);
-}
-#else
-#define looking_at(a,b) do {} while(0)
-#endif
-
 static struct grep_expr *compile_pattern_expr(struct grep_pat **);
 static struct grep_expr *compile_pattern_atom(struct grep_pat **list)
 {
        struct grep_pat *p;
        struct grep_expr *x;
 
-       looking_at("atom", list);
-
        p = *list;
        switch (p->token) {
        case GREP_PATTERN: /* atom */
@@ -255,8 +208,6 @@ static struct grep_expr *compile_pattern_not(struct grep_pat **list)
        struct grep_pat *p;
        struct grep_expr *x;
 
-       looking_at("not", list);
-
        p = *list;
        switch (p->token) {
        case GREP_NOT:
@@ -279,8 +230,6 @@ static struct grep_expr *compile_pattern_and(struct grep_pat **list)
        struct grep_pat *p;
        struct grep_expr *x, *y, *z;
 
-       looking_at("and", list);
-
        x = compile_pattern_not(list);
        p = *list;
        if (p && p->token == GREP_AND) {
@@ -304,8 +253,6 @@ static struct grep_expr *compile_pattern_or(struct grep_pat **list)
        struct grep_pat *p;
        struct grep_expr *x, *y, *z;
 
-       looking_at("or", list);
-
        x = compile_pattern_and(list);
        p = *list;
        if (x && p && p->token != GREP_CLOSE_PAREN) {
@@ -323,8 +270,6 @@ static struct grep_expr *compile_pattern_or(struct grep_pat **list)
 
 static struct grep_expr *compile_pattern_expr(struct grep_pat **list)
 {
-       looking_at("expr", list);
-
        return compile_pattern_or(list);
 }
 
@@ -388,9 +333,7 @@ static int buffer_is_binary(const char *ptr, unsigned long size)
 {
        if (FIRST_FEW_BYTES < size)
                size = FIRST_FEW_BYTES;
-       if (memchr(ptr, 0, size))
-               return 1;
-       return 0;
+       return !!memchr(ptr, 0, size);
 }
 
 static int fixmatch(const char *pattern, char *line, regmatch_t *match)
@@ -632,19 +575,40 @@ static int grep_buffer(struct grep_opt *opt, const char *name,
        return !!last_hit;
 }
 
-static int grep_sha1(struct grep_opt *opt, const unsigned char *sha1, const char *name)
+static int grep_sha1(struct grep_opt *opt, const unsigned char *sha1, const char *name, int tree_name_len)
 {
        unsigned long size;
        char *data;
        char type[20];
+       char *to_free = NULL;
        int hit;
+
        data = read_sha1_file(sha1, type, &size);
        if (!data) {
                error("'%s': unable to read %s", name, sha1_to_hex(sha1));
                return 0;
        }
+       if (opt->relative && opt->prefix_length) {
+               static char name_buf[PATH_MAX];
+               char *cp;
+               int name_len = strlen(name) - opt->prefix_length + 1;
+
+               if (!tree_name_len)
+                       name += opt->prefix_length;
+               else {
+                       if (ARRAY_SIZE(name_buf) <= name_len)
+                               cp = to_free = xmalloc(name_len);
+                       else
+                               cp = name_buf;
+                       memcpy(cp, name, tree_name_len);
+                       strcpy(cp + tree_name_len,
+                              name + tree_name_len + opt->prefix_length);
+                       name = cp;
+               }
+       }
        hit = grep_buffer(opt, name, data, size);
        free(data);
+       free(to_free);
        return hit;
 }
 
@@ -674,6 +638,8 @@ static int grep_file(struct grep_opt *opt, const char *filename)
                return 0;
        }
        close(i);
+       if (opt->relative && opt->prefix_length)
+               filename += opt->prefix_length;
        i = grep_buffer(opt, filename, data, st.st_size);
        free(data);
        return i;
@@ -720,7 +686,7 @@ static int external_grep(struct grep_opt *opt, const char **paths, int cached)
        char *argptr = randarg;
        struct grep_pat *p;
 
-       if (opt->extended)
+       if (opt->extended || (opt->relative && opt->prefix_length))
                return -1;
        len = nr = 0;
        push_arg("grep");
@@ -845,7 +811,7 @@ static int grep_cache(struct grep_opt *opt, const char **paths, int cached)
                if (!pathspec_matches(paths, ce->name))
                        continue;
                if (cached)
-                       hit |= grep_sha1(opt, ce->sha1, ce->name);
+                       hit |= grep_sha1(opt, ce->sha1, ce->name, 0);
                else
                        hit |= grep_file(opt, ce->name);
        }
@@ -860,11 +826,12 @@ static int grep_tree(struct grep_opt *opt, const char **paths,
        int hit = 0;
        struct name_entry entry;
        char *down;
-       char *path_buf = xmalloc(PATH_MAX + strlen(tree_name) + 100);
+       int tn_len = strlen(tree_name);
+       char *path_buf = xmalloc(PATH_MAX + tn_len + 100);
 
-       if (tree_name[0]) {
-               int offset = sprintf(path_buf, "%s:", tree_name);
-               down = path_buf + offset;
+       if (tn_len) {
+               tn_len = sprintf(path_buf, "%s:", tree_name);
+               down = path_buf + tn_len;
                strcat(down, base);
        }
        else {
@@ -886,7 +853,7 @@ static int grep_tree(struct grep_opt *opt, const char **paths,
                if (!pathspec_matches(paths, down))
                        ;
                else if (S_ISREG(entry.mode))
-                       hit |= grep_sha1(opt, entry.sha1, path_buf);
+                       hit |= grep_sha1(opt, entry.sha1, path_buf, tn_len);
                else if (S_ISDIR(entry.mode)) {
                        char type[20];
                        struct tree_desc sub;
@@ -907,7 +874,7 @@ static int grep_object(struct grep_opt *opt, const char **paths,
                       struct object *obj, const char *name)
 {
        if (obj->type == OBJ_BLOB)
-               return grep_sha1(opt, obj->sha1, name);
+               return grep_sha1(opt, obj->sha1, name, 0);
        if (obj->type == OBJ_COMMIT || obj->type == OBJ_TREE) {
                struct tree_desc tree;
                void *data;
@@ -945,6 +912,8 @@ int cmd_grep(int argc, const char **argv, const char *prefix)
        int i;
 
        memset(&opt, 0, sizeof(opt));
+       opt.prefix_length = (prefix && *prefix) ? strlen(prefix) : 0;
+       opt.relative = 1;
        opt.pattern_tail = &opt.pattern_list;
        opt.regflags = REG_NEWLINE;
 
@@ -1118,6 +1087,10 @@ int cmd_grep(int argc, const char **argv, const char *prefix)
                        }
                        die(emsg_missing_argument, arg);
                }
+               if (!strcmp("--full-name", arg)) {
+                       opt.relative = 0;
+                       continue;
+               }
                if (!strcmp("--", arg)) {
                        /* later processing wants to have this at argv[1] */
                        argv--;
@@ -1176,8 +1149,15 @@ int cmd_grep(int argc, const char **argv, const char *prefix)
                        verify_filename(prefix, argv[j]);
        }
 
-       if (i < argc)
+       if (i < argc) {
                paths = get_pathspec(prefix, argv + i);
+               if (opt.prefix_length && opt.relative) {
+                       /* Make sure we do not get outside of paths */
+                       for (i = 0; paths[i]; i++)
+                               if (strncmp(prefix, paths[i], opt.prefix_length))
+                                       die("git-grep: cannot generate relative filenames containing '..'");
+               }
+       }
        else if (prefix) {
                paths = xcalloc(2, sizeof(const char *));
                paths[0] = prefix;
diff --git a/builtin-help.c b/builtin-help.c
deleted file mode 100644 (file)
index 6484cb9..0000000
+++ /dev/null
@@ -1,234 +0,0 @@
-/*
- * builtin-help.c
- *
- * Builtin help-related commands (help, usage, version)
- */
-#include <sys/ioctl.h>
-#include "cache.h"
-#include "builtin.h"
-#include "exec_cmd.h"
-#include "common-cmds.h"
-
-
-/* most GUI terminals set COLUMNS (although some don't export it) */
-static int term_columns(void)
-{
-       char *col_string = getenv("COLUMNS");
-       int n_cols = 0;
-
-       if (col_string && (n_cols = atoi(col_string)) > 0)
-               return n_cols;
-
-#ifdef TIOCGWINSZ
-       {
-               struct winsize ws;
-               if (!ioctl(1, TIOCGWINSZ, &ws)) {
-                       if (ws.ws_col)
-                               return ws.ws_col;
-               }
-       }
-#endif
-
-       return 80;
-}
-
-static void oom(void)
-{
-       fprintf(stderr, "git: out of memory\n");
-       exit(1);
-}
-
-static inline void mput_char(char c, unsigned int num)
-{
-       while(num--)
-               putchar(c);
-}
-
-static struct cmdname {
-       size_t len;
-       char name[1];
-} **cmdname;
-static int cmdname_alloc, cmdname_cnt;
-
-static void add_cmdname(const char *name, int len)
-{
-       struct cmdname *ent;
-       if (cmdname_alloc <= cmdname_cnt) {
-               cmdname_alloc = cmdname_alloc + 200;
-               cmdname = realloc(cmdname, cmdname_alloc * sizeof(*cmdname));
-               if (!cmdname)
-                       oom();
-       }
-       ent = malloc(sizeof(*ent) + len);
-       if (!ent)
-               oom();
-       ent->len = len;
-       memcpy(ent->name, name, len);
-       ent->name[len] = 0;
-       cmdname[cmdname_cnt++] = ent;
-}
-
-static int cmdname_compare(const void *a_, const void *b_)
-{
-       struct cmdname *a = *(struct cmdname **)a_;
-       struct cmdname *b = *(struct cmdname **)b_;
-       return strcmp(a->name, b->name);
-}
-
-static void pretty_print_string_list(struct cmdname **cmdname, int longest)
-{
-       int cols = 1, rows;
-       int space = longest + 1; /* min 1 SP between words */
-       int max_cols = term_columns() - 1; /* don't print *on* the edge */
-       int i, j;
-
-       if (space < max_cols)
-               cols = max_cols / space;
-       rows = (cmdname_cnt + cols - 1) / cols;
-
-       qsort(cmdname, cmdname_cnt, sizeof(*cmdname), cmdname_compare);
-
-       for (i = 0; i < rows; i++) {
-               printf("  ");
-
-               for (j = 0; j < cols; j++) {
-                       int n = j * rows + i;
-                       int size = space;
-                       if (n >= cmdname_cnt)
-                               break;
-                       if (j == cols-1 || n + rows >= cmdname_cnt)
-                               size = 1;
-                       printf("%-*s", size, cmdname[n]->name);
-               }
-               putchar('\n');
-       }
-}
-
-static void list_commands(const char *exec_path, const char *pattern)
-{
-       unsigned int longest = 0;
-       char path[PATH_MAX];
-       int dirlen;
-       DIR *dir = opendir(exec_path);
-       struct dirent *de;
-
-       if (!dir) {
-               fprintf(stderr, "git: '%s': %s\n", exec_path, strerror(errno));
-               exit(1);
-       }
-
-       dirlen = strlen(exec_path);
-       if (PATH_MAX - 20 < dirlen) {
-               fprintf(stderr, "git: insanely long exec-path '%s'\n",
-                       exec_path);
-               exit(1);
-       }
-
-       memcpy(path, exec_path, dirlen);
-       path[dirlen++] = '/';
-
-       while ((de = readdir(dir)) != NULL) {
-               struct stat st;
-               int entlen;
-
-               if (strncmp(de->d_name, "git-", 4))
-                       continue;
-               strcpy(path+dirlen, de->d_name);
-               if (stat(path, &st) || /* stat, not lstat */
-                   !S_ISREG(st.st_mode) ||
-                   !(st.st_mode & S_IXUSR))
-                       continue;
-
-               entlen = strlen(de->d_name);
-               if (has_extension(de->d_name, ".exe"))
-                       entlen -= 4;
-
-               if (longest < entlen)
-                       longest = entlen;
-
-               add_cmdname(de->d_name + 4, entlen-4);
-       }
-       closedir(dir);
-
-       printf("git commands available in '%s'\n", exec_path);
-       printf("----------------------------");
-       mput_char('-', strlen(exec_path));
-       putchar('\n');
-       pretty_print_string_list(cmdname, longest - 4);
-       putchar('\n');
-}
-
-static void list_common_cmds_help(void)
-{
-       int i, longest = 0;
-
-       for (i = 0; i < ARRAY_SIZE(common_cmds); i++) {
-               if (longest < strlen(common_cmds[i].name))
-                       longest = strlen(common_cmds[i].name);
-       }
-
-       puts("The most commonly used git commands are:");
-       for (i = 0; i < ARRAY_SIZE(common_cmds); i++) {
-               printf("    %s", common_cmds[i].name);
-               mput_char(' ', longest - strlen(common_cmds[i].name) + 4);
-               puts(common_cmds[i].help);
-       }
-       puts("(use 'git help -a' to get a list of all installed git commands)");
-}
-
-static void show_man_page(const char *git_cmd)
-{
-       const char *page;
-
-       if (!strncmp(git_cmd, "git", 3))
-               page = git_cmd;
-       else {
-               int page_len = strlen(git_cmd) + 4;
-               char *p = malloc(page_len + 1);
-               strcpy(p, "git-");
-               strcpy(p + 4, git_cmd);
-               p[page_len] = 0;
-               page = p;
-       }
-
-       execlp("man", "man", page, NULL);
-}
-
-void help_unknown_cmd(const char *cmd)
-{
-       printf("git: '%s' is not a git-command\n\n", cmd);
-       list_common_cmds_help();
-       exit(1);
-}
-
-int cmd_version(int argc, const char **argv, const char *prefix)
-{
-       printf("git version %s\n", git_version_string);
-       return 0;
-}
-
-int cmd_help(int argc, const char **argv, const char *prefix)
-{
-       const char *help_cmd = argc > 1 ? argv[1] : NULL;
-       const char *exec_path = git_exec_path();
-
-       if (!help_cmd) {
-               printf("usage: %s\n\n", git_usage_string);
-               list_common_cmds_help();
-               exit(1);
-       }
-
-       else if (!strcmp(help_cmd, "--all") || !strcmp(help_cmd, "-a")) {
-               printf("usage: %s\n\n", git_usage_string);
-               if(exec_path)
-                       list_commands(exec_path, "git-*");
-               exit(1);
-       }
-
-       else
-               show_man_page(help_cmd);
-
-       return 0;
-}
-
-
index 11386c432b7722301223b5a85a2cfe847bad5549..ad8c41e7310032c7a868ecb6a87e542af799c361 100644 (file)
 #include "dir.h"
 #include "builtin.h"
 
-static int abbrev = 0;
-static int show_deleted = 0;
-static int show_cached = 0;
-static int show_others = 0;
-static int show_stage = 0;
-static int show_unmerged = 0;
-static int show_modified = 0;
-static int show_killed = 0;
-static int show_valid_bit = 0;
+static int abbrev;
+static int show_deleted;
+static int show_cached;
+static int show_others;
+static int show_stage;
+static int show_unmerged;
+static int show_modified;
+static int show_killed;
+static int show_valid_bit;
 static int line_terminator = '\n';
 
-static int prefix_len = 0, prefix_offset = 0;
-static const char **pathspec = NULL;
-static int error_unmatch = 0;
-static char *ps_matched = NULL;
+static int prefix_len;
+static int prefix_offset;
+static const char **pathspec;
+static int error_unmatch;
+static char *ps_matched;
 
 static const char *tag_cached = "";
 static const char *tag_unmerged = "";
index 261147fdbe76cf9d277bd420cc17efedecc2da2f..201defd9344a25e16066dc7d0a0a8f5707a930cb 100644 (file)
@@ -14,10 +14,10 @@ static int line_termination = '\n';
 #define LS_TREE_ONLY 2
 #define LS_SHOW_TREES 4
 #define LS_NAME_ONLY 8
-static int abbrev = 0;
-static int ls_options = 0;
+static int abbrev;
+static int ls_options;
 static const char **pathspec;
-static int chomp_prefix = 0;
+static int chomp_prefix;
 static const char *ls_tree_prefix;
 
 static const char ls_tree_usage[] =
index 24a4fc63b35ec4c6b5f85bda260811546b12ed46..0c65f9314501bc8c704d326ceeb1ae99bc974b28 100644 (file)
@@ -16,8 +16,8 @@
 
 static FILE *cmitmsg, *patchfile, *fin, *fout;
 
-static int keep_subject = 0;
-static const char *metainfo_charset = NULL;
+static int keep_subject;
+static const char *metainfo_charset;
 static char line[1000];
 static char date[1000];
 static char name[1000];
@@ -31,7 +31,7 @@ static char charset[256];
 
 static char multipart_boundary[1000];
 static int multipart_boundary_len;
-static int patch_lines = 0;
+static int patch_lines;
 
 static char *sanity_check(char *name, char *email)
 {
diff --git a/builtin-name-rev.c b/builtin-name-rev.c
new file mode 100644 (file)
index 0000000..d44e782
--- /dev/null
@@ -0,0 +1,256 @@
+#include <stdlib.h>
+#include "builtin.h"
+#include "cache.h"
+#include "commit.h"
+#include "tag.h"
+#include "refs.h"
+
+static const char name_rev_usage[] =
+       "git-name-rev [--tags] ( --all | --stdin | committish [committish...] )\n";
+
+typedef struct rev_name {
+       const char *tip_name;
+       int merge_traversals;
+       int generation;
+} rev_name;
+
+static long cutoff = LONG_MAX;
+
+static void name_rev(struct commit *commit,
+               const char *tip_name, int merge_traversals, int generation,
+               int deref)
+{
+       struct rev_name *name = (struct rev_name *)commit->util;
+       struct commit_list *parents;
+       int parent_number = 1;
+
+       if (!commit->object.parsed)
+               parse_commit(commit);
+
+       if (commit->date < cutoff)
+               return;
+
+       if (deref) {
+               char *new_name = xmalloc(strlen(tip_name)+3);
+               strcpy(new_name, tip_name);
+               strcat(new_name, "^0");
+               tip_name = new_name;
+
+               if (generation)
+                       die("generation: %d, but deref?", generation);
+       }
+
+       if (name == NULL) {
+               name = xmalloc(sizeof(rev_name));
+               commit->util = name;
+               goto copy_data;
+       } else if (name->merge_traversals > merge_traversals ||
+                       (name->merge_traversals == merge_traversals &&
+                        name->generation > generation)) {
+copy_data:
+               name->tip_name = tip_name;
+               name->merge_traversals = merge_traversals;
+               name->generation = generation;
+       } else
+               return;
+
+       for (parents = commit->parents;
+                       parents;
+                       parents = parents->next, parent_number++) {
+               if (parent_number > 1) {
+                       char *new_name = xmalloc(strlen(tip_name)+8);
+
+                       if (generation > 0)
+                               sprintf(new_name, "%s~%d^%d", tip_name,
+                                               generation, parent_number);
+                       else
+                               sprintf(new_name, "%s^%d", tip_name, parent_number);
+
+                       name_rev(parents->item, new_name,
+                               merge_traversals + 1 , 0, 0);
+               } else {
+                       name_rev(parents->item, tip_name, merge_traversals,
+                               generation + 1, 0);
+               }
+       }
+}
+
+static int tags_only;
+
+static int name_ref(const char *path, const unsigned char *sha1)
+{
+       struct object *o = parse_object(sha1);
+       int deref = 0;
+
+       if (tags_only && strncmp(path, "refs/tags/", 10))
+               return 0;
+
+       while (o && o->type == OBJ_TAG) {
+               struct tag *t = (struct tag *) o;
+               if (!t->tagged)
+                       break; /* broken repository */
+               o = parse_object(t->tagged->sha1);
+               deref = 1;
+       }
+       if (o && o->type == OBJ_COMMIT) {
+               struct commit *commit = (struct commit *)o;
+
+               if (!strncmp(path, "refs/heads/", 11))
+                       path = path + 11;
+               else if (!strncmp(path, "refs/", 5))
+                       path = path + 5;
+
+               name_rev(commit, strdup(path), 0, 0, deref);
+       }
+       return 0;
+}
+
+/* returns a static buffer */
+static const char* get_rev_name(struct object *o)
+{
+       static char buffer[1024];
+       struct rev_name *n;
+       struct commit *c;
+
+       if (o->type != OBJ_COMMIT)
+               return "undefined";
+       c = (struct commit *) o;
+       n = c->util;
+       if (!n)
+               return "undefined";
+
+       if (!n->generation)
+               return n->tip_name;
+
+       snprintf(buffer, sizeof(buffer), "%s~%d", n->tip_name, n->generation);
+
+       return buffer;
+}
+
+int cmd_name_rev(int argc, const char **argv, const char *prefix)
+{
+       struct object_array revs = { 0, 0, NULL };
+       int as_is = 0, all = 0, transform_stdin = 0;
+
+       git_config(git_default_config);
+
+       if (argc < 2)
+               usage(name_rev_usage);
+
+       for (--argc, ++argv; argc; --argc, ++argv) {
+               unsigned char sha1[20];
+               struct object *o;
+               struct commit *commit;
+
+               if (!as_is && (*argv)[0] == '-') {
+                       if (!strcmp(*argv, "--")) {
+                               as_is = 1;
+                               continue;
+                       } else if (!strcmp(*argv, "--tags")) {
+                               tags_only = 1;
+                               continue;
+                       } else if (!strcmp(*argv, "--all")) {
+                               if (argc > 1)
+                                       die("Specify either a list, or --all, not both!");
+                               all = 1;
+                               cutoff = 0;
+                               continue;
+                       } else if (!strcmp(*argv, "--stdin")) {
+                               if (argc > 1)
+                                       die("Specify either a list, or --stdin, not both!");
+                               transform_stdin = 1;
+                               cutoff = 0;
+                               continue;
+                       }
+                       usage(name_rev_usage);
+               }
+
+               if (get_sha1(*argv, sha1)) {
+                       fprintf(stderr, "Could not get sha1 for %s. Skipping.\n",
+                                       *argv);
+                       continue;
+               }
+
+               o = deref_tag(parse_object(sha1), *argv, 0);
+               if (!o || o->type != OBJ_COMMIT) {
+                       fprintf(stderr, "Could not get commit for %s. Skipping.\n",
+                                       *argv);
+                       continue;
+               }
+
+               commit = (struct commit *)o;
+
+               if (cutoff > commit->date)
+                       cutoff = commit->date;
+
+               add_object_array((struct object *)commit, *argv, &revs);
+       }
+
+       for_each_ref(name_ref);
+
+       if (transform_stdin) {
+               char buffer[2048];
+               char *p, *p_start;
+
+               while (!feof(stdin)) {
+                       int forty = 0;
+                       p = fgets(buffer, sizeof(buffer), stdin);
+                       if (!p)
+                               break;
+
+                       for (p_start = p; *p; p++) {
+#define ishex(x) (isdigit((x)) || ((x) >= 'a' && (x) <= 'f'))
+                               if (!ishex(*p))
+                                       forty = 0;
+                               else if (++forty == 40 &&
+                                               !ishex(*(p+1))) {
+                                       unsigned char sha1[40];
+                                       const char *name = "undefined";
+                                       char c = *(p+1);
+
+                                       forty = 0;
+
+                                       *(p+1) = 0;
+                                       if (!get_sha1(p - 39, sha1)) {
+                                               struct object *o =
+                                                       lookup_object(sha1);
+                                               if (o)
+                                                       name = get_rev_name(o);
+                                       }
+                                       *(p+1) = c;
+
+                                       if (!strcmp(name, "undefined"))
+                                               continue;
+
+                                       fwrite(p_start, p - p_start + 1, 1,
+                                              stdout);
+                                       printf(" (%s)", name);
+                                       p_start = p + 1;
+                               }
+                       }
+
+                       /* flush */
+                       if (p_start != p)
+                               fwrite(p_start, p - p_start, 1, stdout);
+               }
+       } else if (all) {
+               int i, max;
+
+               max = get_max_object_index();
+               for (i = 0; i < max; i++) {
+                       struct object * obj = get_indexed_object(i);
+                       if (!obj)
+                               continue;
+                       printf("%s %s\n", sha1_to_hex(obj->sha1), get_rev_name(obj));
+               }
+       } else {
+               int i;
+               for (i = 0; i < revs.nr; i++)
+                       printf("%s %s\n",
+                               revs.objects[i].name,
+                               get_rev_name(revs.objects[i].item));
+       }
+
+       return 0;
+}
+
diff --git a/builtin-pack-objects.c b/builtin-pack-objects.c
new file mode 100644 (file)
index 0000000..448461b
--- /dev/null
@@ -0,0 +1,1392 @@
+#include "builtin.h"
+#include "cache.h"
+#include "object.h"
+#include "blob.h"
+#include "commit.h"
+#include "tag.h"
+#include "tree.h"
+#include "delta.h"
+#include "pack.h"
+#include "csum-file.h"
+#include "tree-walk.h"
+#include <sys/time.h>
+#include <signal.h>
+
+static const char pack_usage[] = "git-pack-objects [-q] [--no-reuse-delta] [--non-empty] [--local] [--incremental] [--window=N] [--depth=N] {--stdout | base-name} < object-list";
+
+struct object_entry {
+       unsigned char sha1[20];
+       unsigned long size;     /* uncompressed size */
+       unsigned long offset;   /* offset into the final pack file;
+                                * nonzero if already written.
+                                */
+       unsigned int depth;     /* delta depth */
+       unsigned int delta_limit;       /* base adjustment for in-pack delta */
+       unsigned int hash;      /* name hint hash */
+       enum object_type type;
+       enum object_type in_pack_type;  /* could be delta */
+       unsigned long delta_size;       /* delta data size (uncompressed) */
+       struct object_entry *delta;     /* delta base object */
+       struct packed_git *in_pack;     /* already in pack */
+       unsigned int in_pack_offset;
+       struct object_entry *delta_child; /* deltified objects who bases me */
+       struct object_entry *delta_sibling; /* other deltified objects who
+                                            * uses the same base as me
+                                            */
+       int preferred_base;     /* we do not pack this, but is encouraged to
+                                * be used as the base objectto delta huge
+                                * objects against.
+                                */
+};
+
+/*
+ * Objects we are going to pack are collected in objects array (dynamically
+ * expanded).  nr_objects & nr_alloc controls this array.  They are stored
+ * in the order we see -- typically rev-list --objects order that gives us
+ * nice "minimum seek" order.
+ *
+ * sorted-by-sha ans sorted-by-type are arrays of pointers that point at
+ * elements in the objects array.  The former is used to build the pack
+ * index (lists object names in the ascending order to help offset lookup),
+ * and the latter is used to group similar things together by try_delta()
+ * heuristics.
+ */
+
+static unsigned char object_list_sha1[20];
+static int non_empty;
+static int no_reuse_delta;
+static int local;
+static int incremental;
+static struct object_entry **sorted_by_sha, **sorted_by_type;
+static struct object_entry *objects;
+static int nr_objects, nr_alloc, nr_result;
+static const char *base_name;
+static unsigned char pack_file_sha1[20];
+static int progress = 1;
+static volatile sig_atomic_t progress_update;
+static int window = 10;
+
+/*
+ * The object names in objects array are hashed with this hashtable,
+ * to help looking up the entry by object name.  Binary search from
+ * sorted_by_sha is also possible but this was easier to code and faster.
+ * This hashtable is built after all the objects are seen.
+ */
+static int *object_ix;
+static int object_ix_hashsz;
+
+/*
+ * Pack index for existing packs give us easy access to the offsets into
+ * corresponding pack file where each object's data starts, but the entries
+ * do not store the size of the compressed representation (uncompressed
+ * size is easily available by examining the pack entry header).  We build
+ * a hashtable of existing packs (pack_revindex), and keep reverse index
+ * here -- pack index file is sorted by object name mapping to offset; this
+ * pack_revindex[].revindex array is an ordered list of offsets, so if you
+ * know the offset of an object, next offset is where its packed
+ * representation ends.
+ */
+struct pack_revindex {
+       struct packed_git *p;
+       unsigned long *revindex;
+} *pack_revindex = NULL;
+static int pack_revindex_hashsz;
+
+/*
+ * stats
+ */
+static int written;
+static int written_delta;
+static int reused;
+static int reused_delta;
+
+static int pack_revindex_ix(struct packed_git *p)
+{
+       unsigned long ui = (unsigned long)p;
+       int i;
+
+       ui = ui ^ (ui >> 16); /* defeat structure alignment */
+       i = (int)(ui % pack_revindex_hashsz);
+       while (pack_revindex[i].p) {
+               if (pack_revindex[i].p == p)
+                       return i;
+               if (++i == pack_revindex_hashsz)
+                       i = 0;
+       }
+       return -1 - i;
+}
+
+static void prepare_pack_ix(void)
+{
+       int num;
+       struct packed_git *p;
+       for (num = 0, p = packed_git; p; p = p->next)
+               num++;
+       if (!num)
+               return;
+       pack_revindex_hashsz = num * 11;
+       pack_revindex = xcalloc(sizeof(*pack_revindex), pack_revindex_hashsz);
+       for (p = packed_git; p; p = p->next) {
+               num = pack_revindex_ix(p);
+               num = - 1 - num;
+               pack_revindex[num].p = p;
+       }
+       /* revindex elements are lazily initialized */
+}
+
+static int cmp_offset(const void *a_, const void *b_)
+{
+       unsigned long a = *(unsigned long *) a_;
+       unsigned long b = *(unsigned long *) b_;
+       if (a < b)
+               return -1;
+       else if (a == b)
+               return 0;
+       else
+               return 1;
+}
+
+/*
+ * Ordered list of offsets of objects in the pack.
+ */
+static void prepare_pack_revindex(struct pack_revindex *rix)
+{
+       struct packed_git *p = rix->p;
+       int num_ent = num_packed_objects(p);
+       int i;
+       void *index = p->index_base + 256;
+
+       rix->revindex = xmalloc(sizeof(unsigned long) * (num_ent + 1));
+       for (i = 0; i < num_ent; i++) {
+               unsigned int hl = *((unsigned int *)((char *) index + 24*i));
+               rix->revindex[i] = ntohl(hl);
+       }
+       /* This knows the pack format -- the 20-byte trailer
+        * follows immediately after the last object data.
+        */
+       rix->revindex[num_ent] = p->pack_size - 20;
+       qsort(rix->revindex, num_ent, sizeof(unsigned long), cmp_offset);
+}
+
+static unsigned long find_packed_object_size(struct packed_git *p,
+                                            unsigned long ofs)
+{
+       int num;
+       int lo, hi;
+       struct pack_revindex *rix;
+       unsigned long *revindex;
+       num = pack_revindex_ix(p);
+       if (num < 0)
+               die("internal error: pack revindex uninitialized");
+       rix = &pack_revindex[num];
+       if (!rix->revindex)
+               prepare_pack_revindex(rix);
+       revindex = rix->revindex;
+       lo = 0;
+       hi = num_packed_objects(p) + 1;
+       do {
+               int mi = (lo + hi) / 2;
+               if (revindex[mi] == ofs) {
+                       return revindex[mi+1] - ofs;
+               }
+               else if (ofs < revindex[mi])
+                       hi = mi;
+               else
+                       lo = mi + 1;
+       } while (lo < hi);
+       die("internal error: pack revindex corrupt");
+}
+
+static void *delta_against(void *buf, unsigned long size, struct object_entry *entry)
+{
+       unsigned long othersize, delta_size;
+       char type[10];
+       void *otherbuf = read_sha1_file(entry->delta->sha1, type, &othersize);
+       void *delta_buf;
+
+       if (!otherbuf)
+               die("unable to read %s", sha1_to_hex(entry->delta->sha1));
+        delta_buf = diff_delta(otherbuf, othersize,
+                              buf, size, &delta_size, 0);
+        if (!delta_buf || delta_size != entry->delta_size)
+               die("delta size changed");
+        free(buf);
+        free(otherbuf);
+       return delta_buf;
+}
+
+/*
+ * The per-object header is a pretty dense thing, which is
+ *  - first byte: low four bits are "size", then three bits of "type",
+ *    and the high bit is "size continues".
+ *  - each byte afterwards: low seven bits are size continuation,
+ *    with the high bit being "size continues"
+ */
+static int encode_header(enum object_type type, unsigned long size, unsigned char *hdr)
+{
+       int n = 1;
+       unsigned char c;
+
+       if (type < OBJ_COMMIT || type > OBJ_DELTA)
+               die("bad type %d", type);
+
+       c = (type << 4) | (size & 15);
+       size >>= 4;
+       while (size) {
+               *hdr++ = c | 0x80;
+               c = size & 0x7f;
+               size >>= 7;
+               n++;
+       }
+       *hdr = c;
+       return n;
+}
+
+static unsigned long write_object(struct sha1file *f,
+                                 struct object_entry *entry)
+{
+       unsigned long size;
+       char type[10];
+       void *buf;
+       unsigned char header[10];
+       unsigned hdrlen, datalen;
+       enum object_type obj_type;
+       int to_reuse = 0;
+
+       if (entry->preferred_base)
+               return 0;
+
+       obj_type = entry->type;
+       if (! entry->in_pack)
+               to_reuse = 0;   /* can't reuse what we don't have */
+       else if (obj_type == OBJ_DELTA)
+               to_reuse = 1;   /* check_object() decided it for us */
+       else if (obj_type != entry->in_pack_type)
+               to_reuse = 0;   /* pack has delta which is unusable */
+       else if (entry->delta)
+               to_reuse = 0;   /* we want to pack afresh */
+       else
+               to_reuse = 1;   /* we have it in-pack undeltified,
+                                * and we do not need to deltify it.
+                                */
+
+       if (!entry->in_pack && !entry->delta) {
+               unsigned char *map;
+               unsigned long mapsize;
+               map = map_sha1_file(entry->sha1, &mapsize);
+               if (map && !legacy_loose_object(map)) {
+                       /* We can copy straight into the pack file */
+                       sha1write(f, map, mapsize);
+                       munmap(map, mapsize);
+                       written++;
+                       reused++;
+                       return mapsize;
+               }
+               if (map)
+                       munmap(map, mapsize);
+       }
+
+       if (! to_reuse) {
+               buf = read_sha1_file(entry->sha1, type, &size);
+               if (!buf)
+                       die("unable to read %s", sha1_to_hex(entry->sha1));
+               if (size != entry->size)
+                       die("object %s size inconsistency (%lu vs %lu)",
+                           sha1_to_hex(entry->sha1), size, entry->size);
+               if (entry->delta) {
+                       buf = delta_against(buf, size, entry);
+                       size = entry->delta_size;
+                       obj_type = OBJ_DELTA;
+               }
+               /*
+                * The object header is a byte of 'type' followed by zero or
+                * more bytes of length.  For deltas, the 20 bytes of delta
+                * sha1 follows that.
+                */
+               hdrlen = encode_header(obj_type, size, header);
+               sha1write(f, header, hdrlen);
+
+               if (entry->delta) {
+                       sha1write(f, entry->delta, 20);
+                       hdrlen += 20;
+               }
+               datalen = sha1write_compressed(f, buf, size);
+               free(buf);
+       }
+       else {
+               struct packed_git *p = entry->in_pack;
+               use_packed_git(p);
+
+               datalen = find_packed_object_size(p, entry->in_pack_offset);
+               buf = (char *) p->pack_base + entry->in_pack_offset;
+               sha1write(f, buf, datalen);
+               unuse_packed_git(p);
+               hdrlen = 0; /* not really */
+               if (obj_type == OBJ_DELTA)
+                       reused_delta++;
+               reused++;
+       }
+       if (obj_type == OBJ_DELTA)
+               written_delta++;
+       written++;
+       return hdrlen + datalen;
+}
+
+static unsigned long write_one(struct sha1file *f,
+                              struct object_entry *e,
+                              unsigned long offset)
+{
+       if (e->offset)
+               /* offset starts from header size and cannot be zero
+                * if it is written already.
+                */
+               return offset;
+       e->offset = offset;
+       offset += write_object(f, e);
+       /* if we are deltified, write out its base object. */
+       if (e->delta)
+               offset = write_one(f, e->delta, offset);
+       return offset;
+}
+
+static void write_pack_file(void)
+{
+       int i;
+       struct sha1file *f;
+       unsigned long offset;
+       struct pack_header hdr;
+       unsigned last_percent = 999;
+       int do_progress = 0;
+
+       if (!base_name)
+               f = sha1fd(1, "<stdout>");
+       else {
+               f = sha1create("%s-%s.%s", base_name,
+                              sha1_to_hex(object_list_sha1), "pack");
+               do_progress = progress;
+       }
+       if (do_progress)
+               fprintf(stderr, "Writing %d objects.\n", nr_result);
+
+       hdr.hdr_signature = htonl(PACK_SIGNATURE);
+       hdr.hdr_version = htonl(PACK_VERSION);
+       hdr.hdr_entries = htonl(nr_result);
+       sha1write(f, &hdr, sizeof(hdr));
+       offset = sizeof(hdr);
+       if (!nr_result)
+               goto done;
+       for (i = 0; i < nr_objects; i++) {
+               offset = write_one(f, objects + i, offset);
+               if (do_progress) {
+                       unsigned percent = written * 100 / nr_result;
+                       if (progress_update || percent != last_percent) {
+                               fprintf(stderr, "%4u%% (%u/%u) done\r",
+                                       percent, written, nr_result);
+                               progress_update = 0;
+                               last_percent = percent;
+                       }
+               }
+       }
+       if (do_progress)
+               fputc('\n', stderr);
+ done:
+       sha1close(f, pack_file_sha1, 1);
+}
+
+static void write_index_file(void)
+{
+       int i;
+       struct sha1file *f = sha1create("%s-%s.%s", base_name,
+                                       sha1_to_hex(object_list_sha1), "idx");
+       struct object_entry **list = sorted_by_sha;
+       struct object_entry **last = list + nr_result;
+       unsigned int array[256];
+
+       /*
+        * Write the first-level table (the list is sorted,
+        * but we use a 256-entry lookup to be able to avoid
+        * having to do eight extra binary search iterations).
+        */
+       for (i = 0; i < 256; i++) {
+               struct object_entry **next = list;
+               while (next < last) {
+                       struct object_entry *entry = *next;
+                       if (entry->sha1[0] != i)
+                               break;
+                       next++;
+               }
+               array[i] = htonl(next - sorted_by_sha);
+               list = next;
+       }
+       sha1write(f, array, 256 * sizeof(int));
+
+       /*
+        * Write the actual SHA1 entries..
+        */
+       list = sorted_by_sha;
+       for (i = 0; i < nr_result; i++) {
+               struct object_entry *entry = *list++;
+               unsigned int offset = htonl(entry->offset);
+               sha1write(f, &offset, 4);
+               sha1write(f, entry->sha1, 20);
+       }
+       sha1write(f, pack_file_sha1, 20);
+       sha1close(f, NULL, 1);
+}
+
+static int locate_object_entry_hash(const unsigned char *sha1)
+{
+       int i;
+       unsigned int ui;
+       memcpy(&ui, sha1, sizeof(unsigned int));
+       i = ui % object_ix_hashsz;
+       while (0 < object_ix[i]) {
+               if (!memcmp(sha1, objects[object_ix[i]-1].sha1, 20))
+                       return i;
+               if (++i == object_ix_hashsz)
+                       i = 0;
+       }
+       return -1 - i;
+}
+
+static struct object_entry *locate_object_entry(const unsigned char *sha1)
+{
+       int i;
+
+       if (!object_ix_hashsz)
+               return NULL;
+
+       i = locate_object_entry_hash(sha1);
+       if (0 <= i)
+               return &objects[object_ix[i]-1];
+       return NULL;
+}
+
+static void rehash_objects(void)
+{
+       int i;
+       struct object_entry *oe;
+
+       object_ix_hashsz = nr_objects * 3;
+       if (object_ix_hashsz < 1024)
+               object_ix_hashsz = 1024;
+       object_ix = xrealloc(object_ix, sizeof(int) * object_ix_hashsz);
+       memset(object_ix, 0, sizeof(int) * object_ix_hashsz);
+       for (i = 0, oe = objects; i < nr_objects; i++, oe++) {
+               int ix = locate_object_entry_hash(oe->sha1);
+               if (0 <= ix)
+                       continue;
+               ix = -1 - ix;
+               object_ix[ix] = i + 1;
+       }
+}
+
+static unsigned name_hash(const char *name)
+{
+       unsigned char c;
+       unsigned hash = 0;
+
+       /*
+        * This effectively just creates a sortable number from the
+        * last sixteen non-whitespace characters. Last characters
+        * count "most", so things that end in ".c" sort together.
+        */
+       while ((c = *name++) != 0) {
+               if (isspace(c))
+                       continue;
+               hash = (hash >> 2) + (c << 24);
+       }
+       return hash;
+}
+
+static int add_object_entry(const unsigned char *sha1, unsigned hash, int exclude)
+{
+       unsigned int idx = nr_objects;
+       struct object_entry *entry;
+       struct packed_git *p;
+       unsigned int found_offset = 0;
+       struct packed_git *found_pack = NULL;
+       int ix, status = 0;
+
+       if (!exclude) {
+               for (p = packed_git; p; p = p->next) {
+                       struct pack_entry e;
+                       if (find_pack_entry_one(sha1, &e, p)) {
+                               if (incremental)
+                                       return 0;
+                               if (local && !p->pack_local)
+                                       return 0;
+                               if (!found_pack) {
+                                       found_offset = e.offset;
+                                       found_pack = e.p;
+                               }
+                       }
+               }
+       }
+       if ((entry = locate_object_entry(sha1)) != NULL)
+               goto already_added;
+
+       if (idx >= nr_alloc) {
+               unsigned int needed = (idx + 1024) * 3 / 2;
+               objects = xrealloc(objects, needed * sizeof(*entry));
+               nr_alloc = needed;
+       }
+       entry = objects + idx;
+       nr_objects = idx + 1;
+       memset(entry, 0, sizeof(*entry));
+       memcpy(entry->sha1, sha1, 20);
+       entry->hash = hash;
+
+       if (object_ix_hashsz * 3 <= nr_objects * 4)
+               rehash_objects();
+       else {
+               ix = locate_object_entry_hash(entry->sha1);
+               if (0 <= ix)
+                       die("internal error in object hashing.");
+               object_ix[-1 - ix] = idx + 1;
+       }
+       status = 1;
+
+ already_added:
+       if (progress_update) {
+               fprintf(stderr, "Counting objects...%d\r", nr_objects);
+               progress_update = 0;
+       }
+       if (exclude)
+               entry->preferred_base = 1;
+       else {
+               if (found_pack) {
+                       entry->in_pack = found_pack;
+                       entry->in_pack_offset = found_offset;
+               }
+       }
+       return status;
+}
+
+struct pbase_tree_cache {
+       unsigned char sha1[20];
+       int ref;
+       int temporary;
+       void *tree_data;
+       unsigned long tree_size;
+};
+
+static struct pbase_tree_cache *(pbase_tree_cache[256]);
+static int pbase_tree_cache_ix(const unsigned char *sha1)
+{
+       return sha1[0] % ARRAY_SIZE(pbase_tree_cache);
+}
+static int pbase_tree_cache_ix_incr(int ix)
+{
+       return (ix+1) % ARRAY_SIZE(pbase_tree_cache);
+}
+
+static struct pbase_tree {
+       struct pbase_tree *next;
+       /* This is a phony "cache" entry; we are not
+        * going to evict it nor find it through _get()
+        * mechanism -- this is for the toplevel node that
+        * would almost always change with any commit.
+        */
+       struct pbase_tree_cache pcache;
+} *pbase_tree;
+
+static struct pbase_tree_cache *pbase_tree_get(const unsigned char *sha1)
+{
+       struct pbase_tree_cache *ent, *nent;
+       void *data;
+       unsigned long size;
+       char type[20];
+       int neigh;
+       int my_ix = pbase_tree_cache_ix(sha1);
+       int available_ix = -1;
+
+       /* pbase-tree-cache acts as a limited hashtable.
+        * your object will be found at your index or within a few
+        * slots after that slot if it is cached.
+        */
+       for (neigh = 0; neigh < 8; neigh++) {
+               ent = pbase_tree_cache[my_ix];
+               if (ent && !memcmp(ent->sha1, sha1, 20)) {
+                       ent->ref++;
+                       return ent;
+               }
+               else if (((available_ix < 0) && (!ent || !ent->ref)) ||
+                        ((0 <= available_ix) &&
+                         (!ent && pbase_tree_cache[available_ix])))
+                       available_ix = my_ix;
+               if (!ent)
+                       break;
+               my_ix = pbase_tree_cache_ix_incr(my_ix);
+       }
+
+       /* Did not find one.  Either we got a bogus request or
+        * we need to read and perhaps cache.
+        */
+       data = read_sha1_file(sha1, type, &size);
+       if (!data)
+               return NULL;
+       if (strcmp(type, tree_type)) {
+               free(data);
+               return NULL;
+       }
+
+       /* We need to either cache or return a throwaway copy */
+
+       if (available_ix < 0)
+               ent = NULL;
+       else {
+               ent = pbase_tree_cache[available_ix];
+               my_ix = available_ix;
+       }
+
+       if (!ent) {
+               nent = xmalloc(sizeof(*nent));
+               nent->temporary = (available_ix < 0);
+       }
+       else {
+               /* evict and reuse */
+               free(ent->tree_data);
+               nent = ent;
+       }
+       memcpy(nent->sha1, sha1, 20);
+       nent->tree_data = data;
+       nent->tree_size = size;
+       nent->ref = 1;
+       if (!nent->temporary)
+               pbase_tree_cache[my_ix] = nent;
+       return nent;
+}
+
+static void pbase_tree_put(struct pbase_tree_cache *cache)
+{
+       if (!cache->temporary) {
+               cache->ref--;
+               return;
+       }
+       free(cache->tree_data);
+       free(cache);
+}
+
+static int name_cmp_len(const char *name)
+{
+       int i;
+       for (i = 0; name[i] && name[i] != '\n' && name[i] != '/'; i++)
+               ;
+       return i;
+}
+
+static void add_pbase_object(struct tree_desc *tree,
+                            const char *name,
+                            int cmplen,
+                            const char *fullname)
+{
+       struct name_entry entry;
+
+       while (tree_entry(tree,&entry)) {
+               unsigned long size;
+               char type[20];
+
+               if (entry.pathlen != cmplen ||
+                   memcmp(entry.path, name, cmplen) ||
+                   !has_sha1_file(entry.sha1) ||
+                   sha1_object_info(entry.sha1, type, &size))
+                       continue;
+               if (name[cmplen] != '/') {
+                       unsigned hash = name_hash(fullname);
+                       add_object_entry(entry.sha1, hash, 1);
+                       return;
+               }
+               if (!strcmp(type, tree_type)) {
+                       struct tree_desc sub;
+                       struct pbase_tree_cache *tree;
+                       const char *down = name+cmplen+1;
+                       int downlen = name_cmp_len(down);
+
+                       tree = pbase_tree_get(entry.sha1);
+                       if (!tree)
+                               return;
+                       sub.buf = tree->tree_data;
+                       sub.size = tree->tree_size;
+
+                       add_pbase_object(&sub, down, downlen, fullname);
+                       pbase_tree_put(tree);
+               }
+       }
+}
+
+static unsigned *done_pbase_paths;
+static int done_pbase_paths_num;
+static int done_pbase_paths_alloc;
+static int done_pbase_path_pos(unsigned hash)
+{
+       int lo = 0;
+       int hi = done_pbase_paths_num;
+       while (lo < hi) {
+               int mi = (hi + lo) / 2;
+               if (done_pbase_paths[mi] == hash)
+                       return mi;
+               if (done_pbase_paths[mi] < hash)
+                       hi = mi;
+               else
+                       lo = mi + 1;
+       }
+       return -lo-1;
+}
+
+static int check_pbase_path(unsigned hash)
+{
+       int pos = (!done_pbase_paths) ? -1 : done_pbase_path_pos(hash);
+       if (0 <= pos)
+               return 1;
+       pos = -pos - 1;
+       if (done_pbase_paths_alloc <= done_pbase_paths_num) {
+               done_pbase_paths_alloc = alloc_nr(done_pbase_paths_alloc);
+               done_pbase_paths = xrealloc(done_pbase_paths,
+                                           done_pbase_paths_alloc *
+                                           sizeof(unsigned));
+       }
+       done_pbase_paths_num++;
+       if (pos < done_pbase_paths_num)
+               memmove(done_pbase_paths + pos + 1,
+                       done_pbase_paths + pos,
+                       (done_pbase_paths_num - pos - 1) * sizeof(unsigned));
+       done_pbase_paths[pos] = hash;
+       return 0;
+}
+
+static void add_preferred_base_object(char *name, unsigned hash)
+{
+       struct pbase_tree *it;
+       int cmplen = name_cmp_len(name);
+
+       if (check_pbase_path(hash))
+               return;
+
+       for (it = pbase_tree; it; it = it->next) {
+               if (cmplen == 0) {
+                       hash = name_hash("");
+                       add_object_entry(it->pcache.sha1, hash, 1);
+               }
+               else {
+                       struct tree_desc tree;
+                       tree.buf = it->pcache.tree_data;
+                       tree.size = it->pcache.tree_size;
+                       add_pbase_object(&tree, name, cmplen, name);
+               }
+       }
+}
+
+static void add_preferred_base(unsigned char *sha1)
+{
+       struct pbase_tree *it;
+       void *data;
+       unsigned long size;
+       unsigned char tree_sha1[20];
+
+       data = read_object_with_reference(sha1, tree_type, &size, tree_sha1);
+       if (!data)
+               return;
+
+       for (it = pbase_tree; it; it = it->next) {
+               if (!memcmp(it->pcache.sha1, tree_sha1, 20)) {
+                       free(data);
+                       return;
+               }
+       }
+
+       it = xcalloc(1, sizeof(*it));
+       it->next = pbase_tree;
+       pbase_tree = it;
+
+       memcpy(it->pcache.sha1, tree_sha1, 20);
+       it->pcache.tree_data = data;
+       it->pcache.tree_size = size;
+}
+
+static void check_object(struct object_entry *entry)
+{
+       char type[20];
+
+       if (entry->in_pack && !entry->preferred_base) {
+               unsigned char base[20];
+               unsigned long size;
+               struct object_entry *base_entry;
+
+               /* We want in_pack_type even if we do not reuse delta.
+                * There is no point not reusing non-delta representations.
+                */
+               check_reuse_pack_delta(entry->in_pack,
+                                      entry->in_pack_offset,
+                                      base, &size,
+                                      &entry->in_pack_type);
+
+               /* Check if it is delta, and the base is also an object
+                * we are going to pack.  If so we will reuse the existing
+                * delta.
+                */
+               if (!no_reuse_delta &&
+                   entry->in_pack_type == OBJ_DELTA &&
+                   (base_entry = locate_object_entry(base)) &&
+                   (!base_entry->preferred_base)) {
+
+                       /* Depth value does not matter - find_deltas()
+                        * will never consider reused delta as the
+                        * base object to deltify other objects
+                        * against, in order to avoid circular deltas.
+                        */
+
+                       /* uncompressed size of the delta data */
+                       entry->size = entry->delta_size = size;
+                       entry->delta = base_entry;
+                       entry->type = OBJ_DELTA;
+
+                       entry->delta_sibling = base_entry->delta_child;
+                       base_entry->delta_child = entry;
+
+                       return;
+               }
+               /* Otherwise we would do the usual */
+       }
+
+       if (sha1_object_info(entry->sha1, type, &entry->size))
+               die("unable to get type of object %s",
+                   sha1_to_hex(entry->sha1));
+
+       if (!strcmp(type, commit_type)) {
+               entry->type = OBJ_COMMIT;
+       } else if (!strcmp(type, tree_type)) {
+               entry->type = OBJ_TREE;
+       } else if (!strcmp(type, blob_type)) {
+               entry->type = OBJ_BLOB;
+       } else if (!strcmp(type, tag_type)) {
+               entry->type = OBJ_TAG;
+       } else
+               die("unable to pack object %s of type %s",
+                   sha1_to_hex(entry->sha1), type);
+}
+
+static unsigned int check_delta_limit(struct object_entry *me, unsigned int n)
+{
+       struct object_entry *child = me->delta_child;
+       unsigned int m = n;
+       while (child) {
+               unsigned int c = check_delta_limit(child, n + 1);
+               if (m < c)
+                       m = c;
+               child = child->delta_sibling;
+       }
+       return m;
+}
+
+static void get_object_details(void)
+{
+       int i;
+       struct object_entry *entry;
+
+       prepare_pack_ix();
+       for (i = 0, entry = objects; i < nr_objects; i++, entry++)
+               check_object(entry);
+
+       if (nr_objects == nr_result) {
+               /*
+                * Depth of objects that depend on the entry -- this
+                * is subtracted from depth-max to break too deep
+                * delta chain because of delta data reusing.
+                * However, we loosen this restriction when we know we
+                * are creating a thin pack -- it will have to be
+                * expanded on the other end anyway, so do not
+                * artificially cut the delta chain and let it go as
+                * deep as it wants.
+                */
+               for (i = 0, entry = objects; i < nr_objects; i++, entry++)
+                       if (!entry->delta && entry->delta_child)
+                               entry->delta_limit =
+                                       check_delta_limit(entry, 1);
+       }
+}
+
+typedef int (*entry_sort_t)(const struct object_entry *, const struct object_entry *);
+
+static entry_sort_t current_sort;
+
+static int sort_comparator(const void *_a, const void *_b)
+{
+       struct object_entry *a = *(struct object_entry **)_a;
+       struct object_entry *b = *(struct object_entry **)_b;
+       return current_sort(a,b);
+}
+
+static struct object_entry **create_sorted_list(entry_sort_t sort)
+{
+       struct object_entry **list = xmalloc(nr_objects * sizeof(struct object_entry *));
+       int i;
+
+       for (i = 0; i < nr_objects; i++)
+               list[i] = objects + i;
+       current_sort = sort;
+       qsort(list, nr_objects, sizeof(struct object_entry *), sort_comparator);
+       return list;
+}
+
+static int sha1_sort(const struct object_entry *a, const struct object_entry *b)
+{
+       return memcmp(a->sha1, b->sha1, 20);
+}
+
+static struct object_entry **create_final_object_list(void)
+{
+       struct object_entry **list;
+       int i, j;
+
+       for (i = nr_result = 0; i < nr_objects; i++)
+               if (!objects[i].preferred_base)
+                       nr_result++;
+       list = xmalloc(nr_result * sizeof(struct object_entry *));
+       for (i = j = 0; i < nr_objects; i++) {
+               if (!objects[i].preferred_base)
+                       list[j++] = objects + i;
+       }
+       current_sort = sha1_sort;
+       qsort(list, nr_result, sizeof(struct object_entry *), sort_comparator);
+       return list;
+}
+
+static int type_size_sort(const struct object_entry *a, const struct object_entry *b)
+{
+       if (a->type < b->type)
+               return -1;
+       if (a->type > b->type)
+               return 1;
+       if (a->hash < b->hash)
+               return -1;
+       if (a->hash > b->hash)
+               return 1;
+       if (a->preferred_base < b->preferred_base)
+               return -1;
+       if (a->preferred_base > b->preferred_base)
+               return 1;
+       if (a->size < b->size)
+               return -1;
+       if (a->size > b->size)
+               return 1;
+       return a < b ? -1 : (a > b);
+}
+
+struct unpacked {
+       struct object_entry *entry;
+       void *data;
+       struct delta_index *index;
+};
+
+/*
+ * We search for deltas _backwards_ in a list sorted by type and
+ * by size, so that we see progressively smaller and smaller files.
+ * That's because we prefer deltas to be from the bigger file
+ * to the smaller - deletes are potentially cheaper, but perhaps
+ * more importantly, the bigger file is likely the more recent
+ * one.
+ */
+static int try_delta(struct unpacked *trg, struct unpacked *src,
+                    unsigned max_depth)
+{
+       struct object_entry *trg_entry = trg->entry;
+       struct object_entry *src_entry = src->entry;
+       unsigned long trg_size, src_size, delta_size, sizediff, max_size, sz;
+       char type[10];
+       void *delta_buf;
+
+       /* Don't bother doing diffs between different types */
+       if (trg_entry->type != src_entry->type)
+               return -1;
+
+       /* We do not compute delta to *create* objects we are not
+        * going to pack.
+        */
+       if (trg_entry->preferred_base)
+               return -1;
+
+       /*
+        * We do not bother to try a delta that we discarded
+        * on an earlier try, but only when reusing delta data.
+        */
+       if (!no_reuse_delta && trg_entry->in_pack &&
+           trg_entry->in_pack == src_entry->in_pack)
+               return 0;
+
+       /*
+        * If the current object is at pack edge, take the depth the
+        * objects that depend on the current object into account --
+        * otherwise they would become too deep.
+        */
+       if (trg_entry->delta_child) {
+               if (max_depth <= trg_entry->delta_limit)
+                       return 0;
+               max_depth -= trg_entry->delta_limit;
+       }
+       if (src_entry->depth >= max_depth)
+               return 0;
+
+       /* Now some size filtering heuristics. */
+       trg_size = trg_entry->size;
+       max_size = trg_size/2 - 20;
+       max_size = max_size * (max_depth - src_entry->depth) / max_depth;
+       if (max_size == 0)
+               return 0;
+       if (trg_entry->delta && trg_entry->delta_size <= max_size)
+               max_size = trg_entry->delta_size-1;
+       src_size = src_entry->size;
+       sizediff = src_size < trg_size ? trg_size - src_size : 0;
+       if (sizediff >= max_size)
+               return 0;
+
+       /* Load data if not already done */
+       if (!trg->data) {
+               trg->data = read_sha1_file(trg_entry->sha1, type, &sz);
+               if (sz != trg_size)
+                       die("object %s inconsistent object length (%lu vs %lu)",
+                           sha1_to_hex(trg_entry->sha1), sz, trg_size);
+       }
+       if (!src->data) {
+               src->data = read_sha1_file(src_entry->sha1, type, &sz);
+               if (sz != src_size)
+                       die("object %s inconsistent object length (%lu vs %lu)",
+                           sha1_to_hex(src_entry->sha1), sz, src_size);
+       }
+       if (!src->index) {
+               src->index = create_delta_index(src->data, src_size);
+               if (!src->index)
+                       die("out of memory");
+       }
+
+       delta_buf = create_delta(src->index, trg->data, trg_size, &delta_size, max_size);
+       if (!delta_buf)
+               return 0;
+
+       trg_entry->delta = src_entry;
+       trg_entry->delta_size = delta_size;
+       trg_entry->depth = src_entry->depth + 1;
+       free(delta_buf);
+       return 1;
+}
+
+static void progress_interval(int signum)
+{
+       progress_update = 1;
+}
+
+static void find_deltas(struct object_entry **list, int window, int depth)
+{
+       int i, idx;
+       unsigned int array_size = window * sizeof(struct unpacked);
+       struct unpacked *array = xmalloc(array_size);
+       unsigned processed = 0;
+       unsigned last_percent = 999;
+
+       memset(array, 0, array_size);
+       i = nr_objects;
+       idx = 0;
+       if (progress)
+               fprintf(stderr, "Deltifying %d objects.\n", nr_result);
+
+       while (--i >= 0) {
+               struct object_entry *entry = list[i];
+               struct unpacked *n = array + idx;
+               int j;
+
+               if (!entry->preferred_base)
+                       processed++;
+
+               if (progress) {
+                       unsigned percent = processed * 100 / nr_result;
+                       if (percent != last_percent || progress_update) {
+                               fprintf(stderr, "%4u%% (%u/%u) done\r",
+                                       percent, processed, nr_result);
+                               progress_update = 0;
+                               last_percent = percent;
+                       }
+               }
+
+               if (entry->delta)
+                       /* This happens if we decided to reuse existing
+                        * delta from a pack.  "!no_reuse_delta &&" is implied.
+                        */
+                       continue;
+
+               if (entry->size < 50)
+                       continue;
+               free_delta_index(n->index);
+               n->index = NULL;
+               free(n->data);
+               n->data = NULL;
+               n->entry = entry;
+
+               j = window;
+               while (--j > 0) {
+                       unsigned int other_idx = idx + j;
+                       struct unpacked *m;
+                       if (other_idx >= window)
+                               other_idx -= window;
+                       m = array + other_idx;
+                       if (!m->entry)
+                               break;
+                       if (try_delta(n, m, depth) < 0)
+                               break;
+               }
+               /* if we made n a delta, and if n is already at max
+                * depth, leaving it in the window is pointless.  we
+                * should evict it first.
+                */
+               if (entry->delta && depth <= entry->depth)
+                       continue;
+
+               idx++;
+               if (idx >= window)
+                       idx = 0;
+       }
+
+       if (progress)
+               fputc('\n', stderr);
+
+       for (i = 0; i < window; ++i) {
+               free_delta_index(array[i].index);
+               free(array[i].data);
+       }
+       free(array);
+}
+
+static void prepare_pack(int window, int depth)
+{
+       get_object_details();
+       sorted_by_type = create_sorted_list(type_size_sort);
+       if (window && depth)
+               find_deltas(sorted_by_type, window+1, depth);
+}
+
+static int reuse_cached_pack(unsigned char *sha1, int pack_to_stdout)
+{
+       static const char cache[] = "pack-cache/pack-%s.%s";
+       char *cached_pack, *cached_idx;
+       int ifd, ofd, ifd_ix = -1;
+
+       cached_pack = git_path(cache, sha1_to_hex(sha1), "pack");
+       ifd = open(cached_pack, O_RDONLY);
+       if (ifd < 0)
+               return 0;
+
+       if (!pack_to_stdout) {
+               cached_idx = git_path(cache, sha1_to_hex(sha1), "idx");
+               ifd_ix = open(cached_idx, O_RDONLY);
+               if (ifd_ix < 0) {
+                       close(ifd);
+                       return 0;
+               }
+       }
+
+       if (progress)
+               fprintf(stderr, "Reusing %d objects pack %s\n", nr_objects,
+                       sha1_to_hex(sha1));
+
+       if (pack_to_stdout) {
+               if (copy_fd(ifd, 1))
+                       exit(1);
+               close(ifd);
+       }
+       else {
+               char name[PATH_MAX];
+               snprintf(name, sizeof(name),
+                        "%s-%s.%s", base_name, sha1_to_hex(sha1), "pack");
+               ofd = open(name, O_CREAT | O_EXCL | O_WRONLY, 0666);
+               if (ofd < 0)
+                       die("unable to open %s (%s)", name, strerror(errno));
+               if (copy_fd(ifd, ofd))
+                       exit(1);
+               close(ifd);
+
+               snprintf(name, sizeof(name),
+                        "%s-%s.%s", base_name, sha1_to_hex(sha1), "idx");
+               ofd = open(name, O_CREAT | O_EXCL | O_WRONLY, 0666);
+               if (ofd < 0)
+                       die("unable to open %s (%s)", name, strerror(errno));
+               if (copy_fd(ifd_ix, ofd))
+                       exit(1);
+               close(ifd_ix);
+               puts(sha1_to_hex(sha1));
+       }
+
+       return 1;
+}
+
+static void setup_progress_signal(void)
+{
+       struct sigaction sa;
+       struct itimerval v;
+
+       memset(&sa, 0, sizeof(sa));
+       sa.sa_handler = progress_interval;
+       sigemptyset(&sa.sa_mask);
+       sa.sa_flags = SA_RESTART;
+       sigaction(SIGALRM, &sa, NULL);
+
+       v.it_interval.tv_sec = 1;
+       v.it_interval.tv_usec = 0;
+       v.it_value = v.it_interval;
+       setitimer(ITIMER_REAL, &v, NULL);
+}
+
+static int git_pack_config(const char *k, const char *v)
+{
+       if(!strcmp(k, "pack.window")) {
+               window = git_config_int(k, v);
+               return 0;
+       }
+       return git_default_config(k, v);
+}
+
+int cmd_pack_objects(int argc, const char **argv, const char *prefix)
+{
+       SHA_CTX ctx;
+       char line[40 + 1 + PATH_MAX + 2];
+       int depth = 10, pack_to_stdout = 0;
+       struct object_entry **list;
+       int num_preferred_base = 0;
+       int i;
+
+       git_config(git_pack_config);
+
+       progress = isatty(2);
+       for (i = 1; i < argc; i++) {
+               const char *arg = argv[i];
+
+               if (*arg == '-') {
+                       if (!strcmp("--non-empty", arg)) {
+                               non_empty = 1;
+                               continue;
+                       }
+                       if (!strcmp("--local", arg)) {
+                               local = 1;
+                               continue;
+                       }
+                       if (!strcmp("--progress", arg)) {
+                               progress = 1;
+                               continue;
+                       }
+                       if (!strcmp("--incremental", arg)) {
+                               incremental = 1;
+                               continue;
+                       }
+                       if (!strncmp("--window=", arg, 9)) {
+                               char *end;
+                               window = strtoul(arg+9, &end, 0);
+                               if (!arg[9] || *end)
+                                       usage(pack_usage);
+                               continue;
+                       }
+                       if (!strncmp("--depth=", arg, 8)) {
+                               char *end;
+                               depth = strtoul(arg+8, &end, 0);
+                               if (!arg[8] || *end)
+                                       usage(pack_usage);
+                               continue;
+                       }
+                       if (!strcmp("--progress", arg)) {
+                               progress = 1;
+                               continue;
+                       }
+                       if (!strcmp("-q", arg)) {
+                               progress = 0;
+                               continue;
+                       }
+                       if (!strcmp("--no-reuse-delta", arg)) {
+                               no_reuse_delta = 1;
+                               continue;
+                       }
+                       if (!strcmp("--stdout", arg)) {
+                               pack_to_stdout = 1;
+                               continue;
+                       }
+                       usage(pack_usage);
+               }
+               if (base_name)
+                       usage(pack_usage);
+               base_name = arg;
+       }
+
+       if (pack_to_stdout != !base_name)
+               usage(pack_usage);
+
+       prepare_packed_git();
+
+       if (progress) {
+               fprintf(stderr, "Generating pack...\n");
+               setup_progress_signal();
+       }
+
+       for (;;) {
+               unsigned char sha1[20];
+               unsigned hash;
+
+               if (!fgets(line, sizeof(line), stdin)) {
+                       if (feof(stdin))
+                               break;
+                       if (!ferror(stdin))
+                               die("fgets returned NULL, not EOF, not error!");
+                       if (errno != EINTR)
+                               die("fgets: %s", strerror(errno));
+                       clearerr(stdin);
+                       continue;
+               }
+
+               if (line[0] == '-') {
+                       if (get_sha1_hex(line+1, sha1))
+                               die("expected edge sha1, got garbage:\n %s",
+                                   line+1);
+                       if (num_preferred_base++ < window)
+                               add_preferred_base(sha1);
+                       continue;
+               }
+               if (get_sha1_hex(line, sha1))
+                       die("expected sha1, got garbage:\n %s", line);
+               hash = name_hash(line+41);
+               add_preferred_base_object(line+41, hash);
+               add_object_entry(sha1, hash, 0);
+       }
+       if (progress)
+               fprintf(stderr, "Done counting %d objects.\n", nr_objects);
+       sorted_by_sha = create_final_object_list();
+       if (non_empty && !nr_result)
+               return 0;
+
+       SHA1_Init(&ctx);
+       list = sorted_by_sha;
+       for (i = 0; i < nr_result; i++) {
+               struct object_entry *entry = *list++;
+               SHA1_Update(&ctx, entry->sha1, 20);
+       }
+       SHA1_Final(object_list_sha1, &ctx);
+       if (progress && (nr_objects != nr_result))
+               fprintf(stderr, "Result has %d objects.\n", nr_result);
+
+       if (reuse_cached_pack(object_list_sha1, pack_to_stdout))
+               ;
+       else {
+               if (nr_result)
+                       prepare_pack(window, depth);
+               if (progress && pack_to_stdout) {
+                       /* the other end usually displays progress itself */
+                       struct itimerval v = {{0,},};
+                       setitimer(ITIMER_REAL, &v, NULL);
+                       signal(SIGALRM, SIG_IGN );
+                       progress_update = 0;
+               }
+               write_pack_file();
+               if (!pack_to_stdout) {
+                       write_index_file();
+                       puts(sha1_to_hex(object_list_sha1));
+               }
+       }
+       if (progress)
+               fprintf(stderr, "Total %d, written %d (delta %d), reused %d (delta %d)\n",
+                       nr_result, written, written_delta, reused, reused_delta);
+       return 0;
+}
index 89ec7f1426d3f5d02486e3148b0c568edbe15300..fc885ce55bbb3a44367b8cec1ea66b1918c78f15 100644 (file)
@@ -11,7 +11,7 @@
 #include "cache-tree.h"
 
 static const char prune_usage[] = "git-prune [-n]";
-static int show_only = 0;
+static int show_only;
 static struct rev_info revs;
 
 static int prune_object(char *path, const char *filename, const unsigned char *sha1)
index 53bc378f73e752a58542a1fb8b9ddedcf9301acf..2b5e6fa9ed18c20cda264dbaf9df9d3cbac93c0e 100644 (file)
 
 static const char push_usage[] = "git-push [--all] [--tags] [-f | --force] <repository> [<refspec>...]";
 
-static int all = 0, tags = 0, force = 0, thin = 1;
-static const char *execute = NULL;
+static int all, tags, force, thin = 1;
+static const char *execute;
 
 #define BUF_SIZE (2084)
 static char buffer[BUF_SIZE];
 
-static const char **refspec = NULL;
-static int refspec_nr = 0;
+static const char **refspec;
+static int refspec_nr;
 
 static void add_refspec(const char *ref)
 {
@@ -32,10 +32,8 @@ static int expand_one_ref(const char *ref, const unsigned char *sha1)
        /* Ignore the "refs/" at the beginning of the refname */
        ref += 5;
 
-       if (strncmp(ref, "tags/", 5))
-               return 0;
-
-       add_refspec(strdup(ref));
+       if (!strncmp(ref, "tags/", 5))
+               add_refspec(strdup(ref));
        return 0;
 }
 
index 71a7026df4bec244acdf36ef9559eecc5b65fae3..53087faf7a63e6268ffff5239142a00c120dcf8f 100644 (file)
  *
  * Copyright (C) Linus Torvalds, 2005
  */
-#define DBRT_DEBUG 1
 
 #include "cache.h"
-
 #include "object.h"
 #include "tree.h"
 #include "tree-walk.h"
 #include "cache-tree.h"
-#include <sys/time.h>
-#include <signal.h>
+#include "unpack-trees.h"
 #include "builtin.h"
 
-static int reset = 0;
-static int merge = 0;
-static int update = 0;
-static int index_only = 0;
-static int nontrivial_merge = 0;
-static int trivial_merges_only = 0;
-static int aggressive = 0;
-static int verbose_update = 0;
-static volatile int progress_update = 0;
-static const char *prefix = NULL;
-
-static int head_idx = -1;
-static int merge_size = 0;
-
-static struct object_list *trees = NULL;
-
-static struct cache_entry df_conflict_entry;
-
-struct tree_entry_list {
-       struct tree_entry_list *next;
-       unsigned directory : 1;
-       unsigned executable : 1;
-       unsigned symlink : 1;
-       unsigned int mode;
-       const char *name;
-       const unsigned char *sha1;
-};
-
-static struct tree_entry_list df_conflict_list;
-
-typedef int (*merge_fn_t)(struct cache_entry **src);
-
-static struct tree_entry_list *create_tree_entry_list(struct tree *tree)
-{
-       struct tree_desc desc;
-       struct name_entry one;
-       struct tree_entry_list *ret = NULL;
-       struct tree_entry_list **list_p = &ret;
-
-       desc.buf = tree->buffer;
-       desc.size = tree->size;
-
-       while (tree_entry(&desc, &one)) {
-               struct tree_entry_list *entry;
-
-               entry = xmalloc(sizeof(struct tree_entry_list));
-               entry->name = one.path;
-               entry->sha1 = one.sha1;
-               entry->mode = one.mode;
-               entry->directory = S_ISDIR(one.mode) != 0;
-               entry->executable = (one.mode & S_IXUSR) != 0;
-               entry->symlink = S_ISLNK(one.mode) != 0;
-               entry->next = NULL;
-
-               *list_p = entry;
-               list_p = &entry->next;
-       }
-       return ret;
-}
-
-static int entcmp(const char *name1, int dir1, const char *name2, int dir2)
-{
-       int len1 = strlen(name1);
-       int len2 = strlen(name2);
-       int len = len1 < len2 ? len1 : len2;
-       int ret = memcmp(name1, name2, len);
-       unsigned char c1, c2;
-       if (ret)
-               return ret;
-       c1 = name1[len];
-       c2 = name2[len];
-       if (!c1 && dir1)
-               c1 = '/';
-       if (!c2 && dir2)
-               c2 = '/';
-       ret = (c1 < c2) ? -1 : (c1 > c2) ? 1 : 0;
-       if (c1 && c2 && !ret)
-               ret = len1 - len2;
-       return ret;
-}
-
-static int unpack_trees_rec(struct tree_entry_list **posns, int len,
-                           const char *base, merge_fn_t fn, int *indpos)
-{
-       int baselen = strlen(base);
-       int src_size = len + 1;
-       do {
-               int i;
-               const char *first;
-               int firstdir = 0;
-               int pathlen;
-               unsigned ce_size;
-               struct tree_entry_list **subposns;
-               struct cache_entry **src;
-               int any_files = 0;
-               int any_dirs = 0;
-               char *cache_name;
-               int ce_stage;
-
-               /* Find the first name in the input. */
-
-               first = NULL;
-               cache_name = NULL;
-
-               /* Check the cache */
-               if (merge && *indpos < active_nr) {
-                       /* This is a bit tricky: */
-                       /* If the index has a subdirectory (with
-                        * contents) as the first name, it'll get a
-                        * filename like "foo/bar". But that's after
-                        * "foo", so the entry in trees will get
-                        * handled first, at which point we'll go into
-                        * "foo", and deal with "bar" from the index,
-                        * because the base will be "foo/". The only
-                        * way we can actually have "foo/bar" first of
-                        * all the things is if the trees don't
-                        * contain "foo" at all, in which case we'll
-                        * handle "foo/bar" without going into the
-                        * directory, but that's fine (and will return
-                        * an error anyway, with the added unknown
-                        * file case.
-                        */
-
-                       cache_name = active_cache[*indpos]->name;
-                       if (strlen(cache_name) > baselen &&
-                           !memcmp(cache_name, base, baselen)) {
-                               cache_name += baselen;
-                               first = cache_name;
-                       } else {
-                               cache_name = NULL;
-                       }
-               }
-
-#if DBRT_DEBUG > 1
-               if (first)
-                       printf("index %s\n", first);
-#endif
-               for (i = 0; i < len; i++) {
-                       if (!posns[i] || posns[i] == &df_conflict_list)
-                               continue;
-#if DBRT_DEBUG > 1
-                       printf("%d %s\n", i + 1, posns[i]->name);
-#endif
-                       if (!first || entcmp(first, firstdir,
-                                            posns[i]->name, 
-                                            posns[i]->directory) > 0) {
-                               first = posns[i]->name;
-                               firstdir = posns[i]->directory;
-                       }
-               }
-               /* No name means we're done */
-               if (!first)
-                       return 0;
-
-               pathlen = strlen(first);
-               ce_size = cache_entry_size(baselen + pathlen);
-
-               src = xcalloc(src_size, sizeof(struct cache_entry *));
-
-               subposns = xcalloc(len, sizeof(struct tree_list_entry *));
-
-               if (cache_name && !strcmp(cache_name, first)) {
-                       any_files = 1;
-                       src[0] = active_cache[*indpos];
-                       remove_cache_entry_at(*indpos);
-               }
-
-               for (i = 0; i < len; i++) {
-                       struct cache_entry *ce;
-
-                       if (!posns[i] ||
-                           (posns[i] != &df_conflict_list &&
-                            strcmp(first, posns[i]->name))) {
-                               continue;
-                       }
-
-                       if (posns[i] == &df_conflict_list) {
-                               src[i + merge] = &df_conflict_entry;
-                               continue;
-                       }
-
-                       if (posns[i]->directory) {
-                               struct tree *tree = lookup_tree(posns[i]->sha1);
-                               any_dirs = 1;
-                               parse_tree(tree);
-                               subposns[i] = create_tree_entry_list(tree);
-                               posns[i] = posns[i]->next;
-                               src[i + merge] = &df_conflict_entry;
-                               continue;
-                       }
-
-                       if (!merge)
-                               ce_stage = 0;
-                       else if (i + 1 < head_idx)
-                               ce_stage = 1;
-                       else if (i + 1 > head_idx)
-                               ce_stage = 3;
-                       else
-                               ce_stage = 2;
-
-                       ce = xcalloc(1, ce_size);
-                       ce->ce_mode = create_ce_mode(posns[i]->mode);
-                       ce->ce_flags = create_ce_flags(baselen + pathlen,
-                                                      ce_stage);
-                       memcpy(ce->name, base, baselen);
-                       memcpy(ce->name + baselen, first, pathlen + 1);
-
-                       any_files = 1;
-
-                       memcpy(ce->sha1, posns[i]->sha1, 20);
-                       src[i + merge] = ce;
-                       subposns[i] = &df_conflict_list;
-                       posns[i] = posns[i]->next;
-               }
-               if (any_files) {
-                       if (merge) {
-                               int ret;
-
-#if DBRT_DEBUG > 1
-                               printf("%s:\n", first);
-                               for (i = 0; i < src_size; i++) {
-                                       printf(" %d ", i);
-                                       if (src[i])
-                                               printf("%s\n", sha1_to_hex(src[i]->sha1));
-                                       else
-                                               printf("\n");
-                               }
-#endif
-                               ret = fn(src);
-                               
-#if DBRT_DEBUG > 1
-                               printf("Added %d entries\n", ret);
-#endif
-                               *indpos += ret;
-                       } else {
-                               for (i = 0; i < src_size; i++) {
-                                       if (src[i]) {
-                                               add_cache_entry(src[i], ADD_CACHE_OK_TO_ADD|ADD_CACHE_SKIP_DFCHECK);
-                                       }
-                               }
-                       }
-               }
-               if (any_dirs) {
-                       char *newbase = xmalloc(baselen + 2 + pathlen);
-                       memcpy(newbase, base, baselen);
-                       memcpy(newbase + baselen, first, pathlen);
-                       newbase[baselen + pathlen] = '/';
-                       newbase[baselen + pathlen + 1] = '\0';
-                       if (unpack_trees_rec(subposns, len, newbase, fn,
-                                            indpos))
-                               return -1;
-                       free(newbase);
-               }
-               free(subposns);
-               free(src);
-       } while (1);
-}
-
-static void reject_merge(struct cache_entry *ce)
-{
-       die("Entry '%s' would be overwritten by merge. Cannot merge.", 
-           ce->name);
-}
-
-/* Unlink the last component and attempt to remove leading
- * directories, in case this unlink is the removal of the
- * last entry in the directory -- empty directories are removed.
- */
-static void unlink_entry(char *name)
-{
-       char *cp, *prev;
-
-       if (unlink(name))
-               return;
-       prev = NULL;
-       while (1) {
-               int status;
-               cp = strrchr(name, '/');
-               if (prev)
-                       *prev = '/';
-               if (!cp)
-                       break;
-
-               *cp = 0;
-               status = rmdir(name);
-               if (status) {
-                       *cp = '/';
-                       break;
-               }
-               prev = cp;
-       }
-}
-
-static void progress_interval(int signum)
-{
-       progress_update = 1;
-}
-
-static void setup_progress_signal(void)
-{
-       struct sigaction sa;
-       struct itimerval v;
-
-       memset(&sa, 0, sizeof(sa));
-       sa.sa_handler = progress_interval;
-       sigemptyset(&sa.sa_mask);
-       sa.sa_flags = SA_RESTART;
-       sigaction(SIGALRM, &sa, NULL);
-
-       v.it_interval.tv_sec = 1;
-       v.it_interval.tv_usec = 0;
-       v.it_value = v.it_interval;
-       setitimer(ITIMER_REAL, &v, NULL);
-}
-
-static struct checkout state;
-static void check_updates(struct cache_entry **src, int nr)
-{
-       unsigned short mask = htons(CE_UPDATE);
-       unsigned last_percent = 200, cnt = 0, total = 0;
-
-       if (update && verbose_update) {
-               for (total = cnt = 0; cnt < nr; cnt++) {
-                       struct cache_entry *ce = src[cnt];
-                       if (!ce->ce_mode || ce->ce_flags & mask)
-                               total++;
-               }
-
-               /* Don't bother doing this for very small updates */
-               if (total < 250)
-                       total = 0;
-
-               if (total) {
-                       fprintf(stderr, "Checking files out...\n");
-                       setup_progress_signal();
-                       progress_update = 1;
-               }
-               cnt = 0;
-       }
-
-       while (nr--) {
-               struct cache_entry *ce = *src++;
-
-               if (total) {
-                       if (!ce->ce_mode || ce->ce_flags & mask) {
-                               unsigned percent;
-                               cnt++;
-                               percent = (cnt * 100) / total;
-                               if (percent != last_percent ||
-                                   progress_update) {
-                                       fprintf(stderr, "%4u%% (%u/%u) done\r",
-                                               percent, cnt, total);
-                                       last_percent = percent;
-                                       progress_update = 0;
-                               }
-                       }
-               }
-               if (!ce->ce_mode) {
-                       if (update)
-                               unlink_entry(ce->name);
-                       continue;
-               }
-               if (ce->ce_flags & mask) {
-                       ce->ce_flags &= ~mask;
-                       if (update)
-                               checkout_entry(ce, &state, NULL);
-               }
-       }
-       if (total) {
-               signal(SIGALRM, SIG_IGN);
-               fputc('\n', stderr);
-       }
-}
-
-static int unpack_trees(merge_fn_t fn)
-{
-       int indpos = 0;
-       unsigned len = object_list_length(trees);
-       struct tree_entry_list **posns;
-       int i;
-       struct object_list *posn = trees;
-       merge_size = len;
-
-       if (len) {
-               posns = xmalloc(len * sizeof(struct tree_entry_list *));
-               for (i = 0; i < len; i++) {
-                       posns[i] = create_tree_entry_list((struct tree *) posn->item);
-                       posn = posn->next;
-               }
-               if (unpack_trees_rec(posns, len, prefix ? prefix : "",
-                                    fn, &indpos))
-                       return -1;
-       }
-
-       if (trivial_merges_only && nontrivial_merge)
-               die("Merge requires file-level merging");
-
-       check_updates(active_cache, active_nr);
-       return 0;
-}
+static struct object_list *trees;
 
 static int list_tree(unsigned char *sha1)
 {
@@ -425,386 +23,6 @@ static int list_tree(unsigned char *sha1)
        return 0;
 }
 
-static int same(struct cache_entry *a, struct cache_entry *b)
-{
-       if (!!a != !!b)
-               return 0;
-       if (!a && !b)
-               return 1;
-       return a->ce_mode == b->ce_mode && 
-               !memcmp(a->sha1, b->sha1, 20);
-}
-
-
-/*
- * When a CE gets turned into an unmerged entry, we
- * want it to be up-to-date
- */
-static void verify_uptodate(struct cache_entry *ce)
-{
-       struct stat st;
-
-       if (index_only || reset)
-               return;
-
-       if (!lstat(ce->name, &st)) {
-               unsigned changed = ce_match_stat(ce, &st, 1);
-               if (!changed)
-                       return;
-               errno = 0;
-       }
-       if (reset) {
-               ce->ce_flags |= htons(CE_UPDATE);
-               return;
-       }
-       if (errno == ENOENT)
-               return;
-       die("Entry '%s' not uptodate. Cannot merge.", ce->name);
-}
-
-static void invalidate_ce_path(struct cache_entry *ce)
-{
-       if (ce)
-               cache_tree_invalidate_path(active_cache_tree, ce->name);
-}
-
-/*
- * We do not want to remove or overwrite a working tree file that
- * is not tracked.
- */
-static void verify_absent(const char *path, const char *action)
-{
-       struct stat st;
-
-       if (index_only || reset || !update)
-               return;
-       if (!lstat(path, &st))
-               die("Untracked working tree file '%s' "
-                   "would be %s by merge.", path, action);
-}
-
-static int merged_entry(struct cache_entry *merge, struct cache_entry *old)
-{
-       merge->ce_flags |= htons(CE_UPDATE);
-       if (old) {
-               /*
-                * See if we can re-use the old CE directly?
-                * That way we get the uptodate stat info.
-                *
-                * This also removes the UPDATE flag on
-                * a match.
-                */
-               if (same(old, merge)) {
-                       *merge = *old;
-               } else {
-                       verify_uptodate(old);
-                       invalidate_ce_path(old);
-               }
-       }
-       else {
-               verify_absent(merge->name, "overwritten");
-               invalidate_ce_path(merge);
-       }
-
-       merge->ce_flags &= ~htons(CE_STAGEMASK);
-       add_cache_entry(merge, ADD_CACHE_OK_TO_ADD|ADD_CACHE_OK_TO_REPLACE);
-       return 1;
-}
-
-static int deleted_entry(struct cache_entry *ce, struct cache_entry *old)
-{
-       if (old)
-               verify_uptodate(old);
-       else
-               verify_absent(ce->name, "removed");
-       ce->ce_mode = 0;
-       add_cache_entry(ce, ADD_CACHE_OK_TO_ADD|ADD_CACHE_OK_TO_REPLACE);
-       invalidate_ce_path(ce);
-       return 1;
-}
-
-static int keep_entry(struct cache_entry *ce)
-{
-       add_cache_entry(ce, ADD_CACHE_OK_TO_ADD);
-       return 1;
-}
-
-#if DBRT_DEBUG
-static void show_stage_entry(FILE *o,
-                            const char *label, const struct cache_entry *ce)
-{
-       if (!ce)
-               fprintf(o, "%s (missing)\n", label);
-       else
-               fprintf(o, "%s%06o %s %d\t%s\n",
-                       label,
-                       ntohl(ce->ce_mode),
-                       sha1_to_hex(ce->sha1),
-                       ce_stage(ce),
-                       ce->name);
-}
-#endif
-
-static int threeway_merge(struct cache_entry **stages)
-{
-       struct cache_entry *index;
-       struct cache_entry *head; 
-       struct cache_entry *remote = stages[head_idx + 1];
-       int count;
-       int head_match = 0;
-       int remote_match = 0;
-       const char *path = NULL;
-
-       int df_conflict_head = 0;
-       int df_conflict_remote = 0;
-
-       int any_anc_missing = 0;
-       int no_anc_exists = 1;
-       int i;
-
-       for (i = 1; i < head_idx; i++) {
-               if (!stages[i])
-                       any_anc_missing = 1;
-               else {
-                       if (!path)
-                               path = stages[i]->name;
-                       no_anc_exists = 0;
-               }
-       }
-
-       index = stages[0];
-       head = stages[head_idx];
-
-       if (head == &df_conflict_entry) {
-               df_conflict_head = 1;
-               head = NULL;
-       }
-
-       if (remote == &df_conflict_entry) {
-               df_conflict_remote = 1;
-               remote = NULL;
-       }
-
-       if (!path && index)
-               path = index->name;
-       if (!path && head)
-               path = head->name;
-       if (!path && remote)
-               path = remote->name;
-
-       /* First, if there's a #16 situation, note that to prevent #13
-        * and #14.
-        */
-       if (!same(remote, head)) {
-               for (i = 1; i < head_idx; i++) {
-                       if (same(stages[i], head)) {
-                               head_match = i;
-                       }
-                       if (same(stages[i], remote)) {
-                               remote_match = i;
-                       }
-               }
-       }
-
-       /* We start with cases where the index is allowed to match
-        * something other than the head: #14(ALT) and #2ALT, where it
-        * is permitted to match the result instead.
-        */
-       /* #14, #14ALT, #2ALT */
-       if (remote && !df_conflict_head && head_match && !remote_match) {
-               if (index && !same(index, remote) && !same(index, head))
-                       reject_merge(index);
-               return merged_entry(remote, index);
-       }
-       /*
-        * If we have an entry in the index cache, then we want to
-        * make sure that it matches head.
-        */
-       if (index && !same(index, head)) {
-               reject_merge(index);
-       }
-
-       if (head) {
-               /* #5ALT, #15 */
-               if (same(head, remote))
-                       return merged_entry(head, index);
-               /* #13, #3ALT */
-               if (!df_conflict_remote && remote_match && !head_match)
-                       return merged_entry(head, index);
-       }
-
-       /* #1 */
-       if (!head && !remote && any_anc_missing)
-               return 0;
-
-       /* Under the new "aggressive" rule, we resolve mostly trivial
-        * cases that we historically had git-merge-one-file resolve.
-        */
-       if (aggressive) {
-               int head_deleted = !head && !df_conflict_head;
-               int remote_deleted = !remote && !df_conflict_remote;
-               /*
-                * Deleted in both.
-                * Deleted in one and unchanged in the other.
-                */
-               if ((head_deleted && remote_deleted) ||
-                   (head_deleted && remote && remote_match) ||
-                   (remote_deleted && head && head_match)) {
-                       if (index)
-                               return deleted_entry(index, index);
-                       else if (path)
-                               verify_absent(path, "removed");
-                       return 0;
-               }
-               /*
-                * Added in both, identically.
-                */
-               if (no_anc_exists && head && remote && same(head, remote))
-                       return merged_entry(head, index);
-
-       }
-
-       /* Below are "no merge" cases, which require that the index be
-        * up-to-date to avoid the files getting overwritten with
-        * conflict resolution files. 
-        */
-       if (index) {
-               verify_uptodate(index);
-       }
-       else if (path)
-               verify_absent(path, "overwritten");
-
-       nontrivial_merge = 1;
-
-       /* #2, #3, #4, #6, #7, #9, #11. */
-       count = 0;
-       if (!head_match || !remote_match) {
-               for (i = 1; i < head_idx; i++) {
-                       if (stages[i]) {
-                               keep_entry(stages[i]);
-                               count++;
-                               break;
-                       }
-               }
-       }
-#if DBRT_DEBUG
-       else {
-               fprintf(stderr, "read-tree: warning #16 detected\n");
-               show_stage_entry(stderr, "head   ", stages[head_match]);
-               show_stage_entry(stderr, "remote ", stages[remote_match]);
-       }
-#endif
-       if (head) { count += keep_entry(head); }
-       if (remote) { count += keep_entry(remote); }
-       return count;
-}
-
-/*
- * Two-way merge.
- *
- * The rule is to "carry forward" what is in the index without losing
- * information across a "fast forward", favoring a successful merge
- * over a merge failure when it makes sense.  For details of the
- * "carry forward" rule, please see <Documentation/git-read-tree.txt>.
- *
- */
-static int twoway_merge(struct cache_entry **src)
-{
-       struct cache_entry *current = src[0];
-       struct cache_entry *oldtree = src[1], *newtree = src[2];
-
-       if (merge_size != 2)
-               return error("Cannot do a twoway merge of %d trees",
-                            merge_size);
-
-       if (current) {
-               if ((!oldtree && !newtree) || /* 4 and 5 */
-                   (!oldtree && newtree &&
-                    same(current, newtree)) || /* 6 and 7 */
-                   (oldtree && newtree &&
-                    same(oldtree, newtree)) || /* 14 and 15 */
-                   (oldtree && newtree &&
-                    !same(oldtree, newtree) && /* 18 and 19*/
-                    same(current, newtree))) {
-                       return keep_entry(current);
-               }
-               else if (oldtree && !newtree && same(current, oldtree)) {
-                       /* 10 or 11 */
-                       return deleted_entry(oldtree, current);
-               }
-               else if (oldtree && newtree &&
-                        same(current, oldtree) && !same(current, newtree)) {
-                       /* 20 or 21 */
-                       return merged_entry(newtree, current);
-               }
-               else {
-                       /* all other failures */
-                       if (oldtree)
-                               reject_merge(oldtree);
-                       if (current)
-                               reject_merge(current);
-                       if (newtree)
-                               reject_merge(newtree);
-                       return -1;
-               }
-       }
-       else if (newtree)
-               return merged_entry(newtree, current);
-       else
-               return deleted_entry(oldtree, current);
-}
-
-/*
- * Bind merge.
- *
- * Keep the index entries at stage0, collapse stage1 but make sure
- * stage0 does not have anything there.
- */
-static int bind_merge(struct cache_entry **src)
-{
-       struct cache_entry *old = src[0];
-       struct cache_entry *a = src[1];
-
-       if (merge_size != 1)
-               return error("Cannot do a bind merge of %d trees\n",
-                            merge_size);
-       if (a && old)
-               die("Entry '%s' overlaps.  Cannot bind.", a->name);
-       if (!a)
-               return keep_entry(old);
-       else
-               return merged_entry(a, NULL);
-}
-
-/*
- * One-way merge.
- *
- * The rule is:
- * - take the stat information from stage0, take the data from stage1
- */
-static int oneway_merge(struct cache_entry **src)
-{
-       struct cache_entry *old = src[0];
-       struct cache_entry *a = src[1];
-
-       if (merge_size != 1)
-               return error("Cannot do a oneway merge of %d trees",
-                            merge_size);
-
-       if (!a)
-               return deleted_entry(old, old);
-       if (old && same(old, a)) {
-               if (reset) {
-                       struct stat st;
-                       if (lstat(old->name, &st) ||
-                           ce_match_stat(old, &st, 1))
-                               old->ce_flags |= htons(CE_UPDATE);
-               }
-               return keep_entry(old);
-       }
-       return merged_entry(a, old);
-}
-
 static int read_cache_unmerged(void)
 {
        int i;
@@ -818,7 +36,7 @@ static int read_cache_unmerged(void)
                if (ce_stage(ce)) {
                        if (last && !strcmp(ce->name, last->name))
                                continue;
-                       invalidate_ce_path(ce);
+                       cache_tree_invalidate_path(active_cache_tree, ce->name);
                        last = ce;
                        ce->ce_mode = 0;
                        ce->ce_flags &= ~htons(CE_STAGEMASK);
@@ -874,22 +92,18 @@ int cmd_read_tree(int argc, const char **argv, const char *unused_prefix)
 {
        int i, newfd, stage = 0;
        unsigned char sha1[20];
-       merge_fn_t fn = NULL;
+       struct unpack_trees_options opts;
 
-       df_conflict_list.next = &df_conflict_list;
-       state.base_dir = "";
-       state.force = 1;
-       state.quiet = 1;
-       state.refresh_cache = 1;
+       memset(&opts, 0, sizeof(opts));
+       opts.head_idx = -1;
 
+       setup_git_directory();
        git_config(git_default_config);
 
        newfd = hold_lock_file_for_update(&lock_file, get_index_file(), 1);
 
        git_config(git_default_config);
 
-       merge = 0;
-       reset = 0;
        for (i = 1; i < argc; i++) {
                const char *arg = argv[i];
 
@@ -897,12 +111,12 @@ int cmd_read_tree(int argc, const char **argv, const char *unused_prefix)
                 * the working tree.
                 */
                if (!strcmp(arg, "-u")) {
-                       update = 1;
+                       opts.update = 1;
                        continue;
                }
 
                if (!strcmp(arg, "-v")) {
-                       verbose_update = 1;
+                       opts.verbose_update = 1;
                        continue;
                }
 
@@ -910,7 +124,7 @@ int cmd_read_tree(int argc, const char **argv, const char *unused_prefix)
                 * not even look at the working tree.
                 */
                if (!strcmp(arg, "-i")) {
-                       index_only = 1;
+                       opts.index_only = 1;
                        continue;
                }
 
@@ -919,10 +133,10 @@ int cmd_read_tree(int argc, const char **argv, const char *unused_prefix)
                 * given subdirectory.
                 */
                if (!strncmp(arg, "--prefix=", 9)) {
-                       if (stage || merge || prefix)
+                       if (stage || opts.merge || opts.prefix)
                                usage(read_tree_usage);
-                       prefix = arg + 9;
-                       merge = 1;
+                       opts.prefix = arg + 9;
+                       opts.merge = 1;
                        stage = 1;
                        if (read_cache_unmerged())
                                die("you need to resolve your current index first");
@@ -934,38 +148,38 @@ int cmd_read_tree(int argc, const char **argv, const char *unused_prefix)
                 * correspond to them.
                 */
                if (!strcmp(arg, "--reset")) {
-                       if (stage || merge || prefix)
+                       if (stage || opts.merge || opts.prefix)
                                usage(read_tree_usage);
-                       reset = 1;
-                       merge = 1;
+                       opts.reset = 1;
+                       opts.merge = 1;
                        stage = 1;
                        read_cache_unmerged();
                        continue;
                }
 
                if (!strcmp(arg, "--trivial")) {
-                       trivial_merges_only = 1;
+                       opts.trivial_merges_only = 1;
                        continue;
                }
 
                if (!strcmp(arg, "--aggressive")) {
-                       aggressive = 1;
+                       opts.aggressive = 1;
                        continue;
                }
 
                /* "-m" stands for "merge", meaning we start in stage 1 */
                if (!strcmp(arg, "-m")) {
-                       if (stage || merge || prefix)
+                       if (stage || opts.merge || opts.prefix)
                                usage(read_tree_usage);
                        if (read_cache_unmerged())
                                die("you need to resolve your current index first");
                        stage = 1;
-                       merge = 1;
+                       opts.merge = 1;
                        continue;
                }
 
                /* using -u and -i at the same time makes no sense */
-               if (1 < index_only + update)
+               if (1 < opts.index_only + opts.update)
                        usage(read_tree_usage);
 
                if (get_sha1(arg, sha1))
@@ -974,52 +188,53 @@ int cmd_read_tree(int argc, const char **argv, const char *unused_prefix)
                        die("failed to unpack tree object %s", arg);
                stage++;
        }
-       if ((update||index_only) && !merge)
+       if ((opts.update||opts.index_only) && !opts.merge)
                usage(read_tree_usage);
 
-       if (prefix) {
-               int pfxlen = strlen(prefix);
+       if (opts.prefix) {
+               int pfxlen = strlen(opts.prefix);
                int pos;
-               if (prefix[pfxlen-1] != '/')
+               if (opts.prefix[pfxlen-1] != '/')
                        die("prefix must end with /");
                if (stage != 2)
                        die("binding merge takes only one tree");
-               pos = cache_name_pos(prefix, pfxlen);
+               pos = cache_name_pos(opts.prefix, pfxlen);
                if (0 <= pos)
                        die("corrupt index file");
                pos = -pos-1;
                if (pos < active_nr &&
-                   !strncmp(active_cache[pos]->name, prefix, pfxlen))
-                       die("subdirectory '%s' already exists.", prefix);
-               pos = cache_name_pos(prefix, pfxlen-1);
+                   !strncmp(active_cache[pos]->name, opts.prefix, pfxlen))
+                       die("subdirectory '%s' already exists.", opts.prefix);
+               pos = cache_name_pos(opts.prefix, pfxlen-1);
                if (0 <= pos)
-                       die("file '%.*s' already exists.", pfxlen-1, prefix);
+                       die("file '%.*s' already exists.",
+                                       pfxlen-1, opts.prefix);
        }
 
-       if (merge) {
+       if (opts.merge) {
                if (stage < 2)
                        die("just how do you expect me to merge %d trees?", stage-1);
                switch (stage - 1) {
                case 1:
-                       fn = prefix ? bind_merge : oneway_merge;
+                       opts.fn = opts.prefix ? bind_merge : oneway_merge;
                        break;
                case 2:
-                       fn = twoway_merge;
+                       opts.fn = twoway_merge;
                        break;
                case 3:
                default:
-                       fn = threeway_merge;
+                       opts.fn = threeway_merge;
                        cache_tree_free(&active_cache_tree);
                        break;
                }
 
                if (stage - 1 >= 3)
-                       head_idx = stage - 2;
+                       opts.head_idx = stage - 2;
                else
-                       head_idx = 1;
+                       opts.head_idx = 1;
        }
 
-       unpack_trees(fn);
+       unpack_trees(trees, &opts);
 
        /*
         * When reading only one tree (either the most basic form,
@@ -1027,7 +242,7 @@ int cmd_read_tree(int argc, const char **argv, const char *unused_prefix)
         * valid cache-tree because the index must match exactly
         * what came from the tree.
         */
-       if (trees && trees->item && !prefix && (!merge || (stage == 2))) {
+       if (trees && trees->item && !opts.prefix && (!opts.merge || (stage == 2))) {
                cache_tree_free(&active_cache_tree);
                prime_cache_tree();
        }
index c821e22717e35795b74f1c26d16f6c7da63ebdf8..c4164802081e03c8061f77498e08dd2ca8501af7 100644 (file)
@@ -5,14 +5,14 @@
 static const char git_config_set_usage[] =
 "git-repo-config [ --bool | --int ] [--get | --get-all | --get-regexp | --replace-all | --unset | --unset-all] name [value [value_regex]] | --list";
 
-static char* key = NULL;
-static regex_t* key_regexp = NULL;
-static regex_t* regexp = NULL;
-static int show_keys = 0;
-static int use_key_regexp = 0;
-static int do_all = 0;
-static int do_not_match = 0;
-static int seen = 0;
+static char *key;
+static regex_t *key_regexp;
+static regex_t *regexp;
+static int show_keys;
+static int use_key_regexp;
+static int do_all;
+static int do_not_match;
+static int seen;
 static enum { T_RAW, T_INT, T_BOOL } type = T_RAW;
 
 static int show_all_config(const char *key_, const char *value_)
index 0dee1734a31308ace74b0b25cc87ffcf4993549b..bc48a3e23081264d06f2659181a19b31694dd993 100644 (file)
@@ -39,9 +39,9 @@ static const char rev_list_usage[] =
 
 static struct rev_info revs;
 
-static int bisect_list = 0;
-static int show_timestamp = 0;
-static int hdr_termination = 0;
+static int bisect_list;
+static int show_timestamp;
+static int hdr_termination;
 static const char *header_prefix;
 
 static void show_commit(struct commit *commit)
index aca4a3603283a257f7621934103c85d5c0c31390..fd3ccc8546455f60f56ceb59dbe98fb367a86d2a 100644 (file)
 #define DO_NONFLAGS    8
 static int filter = ~0;
 
-static const char *def = NULL;
+static const char *def;
 
 #define NORMAL 0
 #define REVERSED 1
 static int show_type = NORMAL;
-static int symbolic = 0;
-static int abbrev = 0;
-static int output_sq = 0;
+static int symbolic;
+static int abbrev;
+static int output_sq;
 
-static int revs_count = 0;
+static int revs_count;
 
 /*
  * Some arguments are relevant "revision" arguments,
index 2a1b848f6c169f09cb168d12e6bb5033795b8be2..95fbf77fad84a13330b0c0e58586edac0eb037f0 100644 (file)
@@ -8,9 +8,9 @@
 static const char show_branch_usage[] =
 "git-show-branch [--sparse] [--current] [--all] [--heads] [--tags] [--topo-order] [--more=count | --list | --independent | --merge-base ] [--topics] [<refs>...]";
 
-static int default_num = 0;
-static int default_alloc = 0;
-static const char **default_arg = NULL;
+static int default_num;
+static int default_alloc;
+static const char **default_arg;
 
 #define UNINTERESTING  01
 
diff --git a/builtin-symbolic-ref.c b/builtin-symbolic-ref.c
new file mode 100644 (file)
index 0000000..b4ec6f2
--- /dev/null
@@ -0,0 +1,35 @@
+#include "builtin.h"
+#include "cache.h"
+
+static const char git_symbolic_ref_usage[] =
+"git-symbolic-ref name [ref]";
+
+static void check_symref(const char *HEAD)
+{
+       unsigned char sha1[20];
+       const char *git_HEAD = strdup(git_path("%s", HEAD));
+       const char *git_refs_heads_master = resolve_ref(git_HEAD, sha1, 0);
+       if (git_refs_heads_master) {
+               /* we want to strip the .git/ part */
+               int pfxlen = strlen(git_HEAD) - strlen(HEAD);
+               puts(git_refs_heads_master + pfxlen);
+       }
+       else
+               die("No such ref: %s", HEAD);
+}
+
+int cmd_symbolic_ref(int argc, const char **argv, const char *prefix)
+{
+       git_config(git_default_config);
+       switch (argc) {
+       case 2:
+               check_symref(argv[1]);
+               break;
+       case 3:
+               create_symref(strdup(git_path("%s", argv[1])), argv[2]);
+               break;
+       default:
+               usage(git_symbolic_ref_usage);
+       }
+       return 0;
+}
diff --git a/builtin-unpack-objects.c b/builtin-unpack-objects.c
new file mode 100644 (file)
index 0000000..63f4b8e
--- /dev/null
@@ -0,0 +1,312 @@
+#include "builtin.h"
+#include "cache.h"
+#include "object.h"
+#include "delta.h"
+#include "pack.h"
+#include "blob.h"
+#include "commit.h"
+#include "tag.h"
+#include "tree.h"
+
+#include <sys/time.h>
+
+static int dry_run, quiet;
+static const char unpack_usage[] = "git-unpack-objects [-n] [-q] < pack-file";
+
+/* We always read in 4kB chunks. */
+static unsigned char buffer[4096];
+static unsigned long offset, len, eof;
+static SHA_CTX ctx;
+
+/*
+ * Make sure at least "min" bytes are available in the buffer, and
+ * return the pointer to the buffer.
+ */
+static void * fill(int min)
+{
+       if (min <= len)
+               return buffer + offset;
+       if (eof)
+               die("unable to fill input");
+       if (min > sizeof(buffer))
+               die("cannot fill %d bytes", min);
+       if (offset) {
+               SHA1_Update(&ctx, buffer, offset);
+               memcpy(buffer, buffer + offset, len);
+               offset = 0;
+       }
+       do {
+               int ret = xread(0, buffer + len, sizeof(buffer) - len);
+               if (ret <= 0) {
+                       if (!ret)
+                               die("early EOF");
+                       die("read error on input: %s", strerror(errno));
+               }
+               len += ret;
+       } while (len < min);
+       return buffer;
+}
+
+static void use(int bytes)
+{
+       if (bytes > len)
+               die("used more bytes than were available");
+       len -= bytes;
+       offset += bytes;
+}
+
+static void *get_data(unsigned long size)
+{
+       z_stream stream;
+       void *buf = xmalloc(size);
+
+       memset(&stream, 0, sizeof(stream));
+
+       stream.next_out = buf;
+       stream.avail_out = size;
+       stream.next_in = fill(1);
+       stream.avail_in = len;
+       inflateInit(&stream);
+
+       for (;;) {
+               int ret = inflate(&stream, 0);
+               use(len - stream.avail_in);
+               if (stream.total_out == size && ret == Z_STREAM_END)
+                       break;
+               if (ret != Z_OK)
+                       die("inflate returned %d\n", ret);
+               stream.next_in = fill(1);
+               stream.avail_in = len;
+       }
+       inflateEnd(&stream);
+       return buf;
+}
+
+struct delta_info {
+       unsigned char base_sha1[20];
+       unsigned long size;
+       void *delta;
+       struct delta_info *next;
+};
+
+static struct delta_info *delta_list;
+
+static void add_delta_to_list(unsigned char *base_sha1, void *delta, unsigned long size)
+{
+       struct delta_info *info = xmalloc(sizeof(*info));
+
+       memcpy(info->base_sha1, base_sha1, 20);
+       info->size = size;
+       info->delta = delta;
+       info->next = delta_list;
+       delta_list = info;
+}
+
+static void added_object(unsigned char *sha1, const char *type, void *data, unsigned long size);
+
+static void write_object(void *buf, unsigned long size, const char *type)
+{
+       unsigned char sha1[20];
+       if (write_sha1_file(buf, size, type, sha1) < 0)
+               die("failed to write object");
+       added_object(sha1, type, buf, size);
+}
+
+static int resolve_delta(const char *type,
+       void *base, unsigned long base_size,
+       void *delta, unsigned long delta_size)
+{
+       void *result;
+       unsigned long result_size;
+
+       result = patch_delta(base, base_size,
+                            delta, delta_size,
+                            &result_size);
+       if (!result)
+               die("failed to apply delta");
+       free(delta);
+       write_object(result, result_size, type);
+       free(result);
+       return 0;
+}
+
+static void added_object(unsigned char *sha1, const char *type, void *data, unsigned long size)
+{
+       struct delta_info **p = &delta_list;
+       struct delta_info *info;
+
+       while ((info = *p) != NULL) {
+               if (!memcmp(info->base_sha1, sha1, 20)) {
+                       *p = info->next;
+                       p = &delta_list;
+                       resolve_delta(type, data, size, info->delta, info->size);
+                       free(info);
+                       continue;
+               }
+               p = &info->next;
+       }
+}
+
+static int unpack_non_delta_entry(enum object_type kind, unsigned long size)
+{
+       void *buf = get_data(size);
+       const char *type;
+
+       switch (kind) {
+       case OBJ_COMMIT: type = commit_type; break;
+       case OBJ_TREE:   type = tree_type; break;
+       case OBJ_BLOB:   type = blob_type; break;
+       case OBJ_TAG:    type = tag_type; break;
+       default: die("bad type %d", kind);
+       }
+       if (!dry_run)
+               write_object(buf, size, type);
+       free(buf);
+       return 0;
+}
+
+static int unpack_delta_entry(unsigned long delta_size)
+{
+       void *delta_data, *base;
+       unsigned long base_size;
+       char type[20];
+       unsigned char base_sha1[20];
+       int result;
+
+       memcpy(base_sha1, fill(20), 20);
+       use(20);
+
+       delta_data = get_data(delta_size);
+       if (dry_run) {
+               free(delta_data);
+               return 0;
+       }
+
+       if (!has_sha1_file(base_sha1)) {
+               add_delta_to_list(base_sha1, delta_data, delta_size);
+               return 0;
+       }
+       base = read_sha1_file(base_sha1, type, &base_size);
+       if (!base)
+               die("failed to read delta-pack base object %s", sha1_to_hex(base_sha1));
+       result = resolve_delta(type, base, base_size, delta_data, delta_size);
+       free(base);
+       return result;
+}
+
+static void unpack_one(unsigned nr, unsigned total)
+{
+       unsigned shift;
+       unsigned char *pack, c;
+       unsigned long size;
+       enum object_type type;
+
+       pack = fill(1);
+       c = *pack;
+       use(1);
+       type = (c >> 4) & 7;
+       size = (c & 15);
+       shift = 4;
+       while (c & 0x80) {
+               pack = fill(1);
+               c = *pack++;
+               use(1);
+               size += (c & 0x7f) << shift;
+               shift += 7;
+       }
+       if (!quiet) {
+               static unsigned long last_sec;
+               static unsigned last_percent;
+               struct timeval now;
+               unsigned percentage = (nr * 100) / total;
+
+               gettimeofday(&now, NULL);
+               if (percentage != last_percent || now.tv_sec != last_sec) {
+                       last_sec = now.tv_sec;
+                       last_percent = percentage;
+                       fprintf(stderr, "%4u%% (%u/%u) done\r", percentage, nr, total);
+               }
+       }
+       switch (type) {
+       case OBJ_COMMIT:
+       case OBJ_TREE:
+       case OBJ_BLOB:
+       case OBJ_TAG:
+               unpack_non_delta_entry(type, size);
+               return;
+       case OBJ_DELTA:
+               unpack_delta_entry(size);
+               return;
+       default:
+               die("bad object type %d", type);
+       }
+}
+
+static void unpack_all(void)
+{
+       int i;
+       struct pack_header *hdr = fill(sizeof(struct pack_header));
+       unsigned nr_objects = ntohl(hdr->hdr_entries);
+
+       if (ntohl(hdr->hdr_signature) != PACK_SIGNATURE)
+               die("bad pack file");
+       if (!pack_version_ok(hdr->hdr_version))
+               die("unknown pack file version %d", ntohl(hdr->hdr_version));
+       fprintf(stderr, "Unpacking %d objects\n", nr_objects);
+
+       use(sizeof(struct pack_header));
+       for (i = 0; i < nr_objects; i++)
+               unpack_one(i+1, nr_objects);
+       if (delta_list)
+               die("unresolved deltas left after unpacking");
+}
+
+int cmd_unpack_objects(int argc, const char **argv, const char *prefix)
+{
+       int i;
+       unsigned char sha1[20];
+
+       git_config(git_default_config);
+
+       quiet = !isatty(2);
+
+       for (i = 1 ; i < argc; i++) {
+               const char *arg = argv[i];
+
+               if (*arg == '-') {
+                       if (!strcmp(arg, "-n")) {
+                               dry_run = 1;
+                               continue;
+                       }
+                       if (!strcmp(arg, "-q")) {
+                               quiet = 1;
+                               continue;
+                       }
+                       usage(unpack_usage);
+               }
+
+               /* We don't take any non-flag arguments now.. Maybe some day */
+               usage(unpack_usage);
+       }
+       SHA1_Init(&ctx);
+       unpack_all();
+       SHA1_Update(&ctx, buffer, offset);
+       SHA1_Final(sha1, &ctx);
+       if (memcmp(fill(20), sha1, 20))
+               die("final sha1 did not match");
+       use(20);
+
+       /* Write the last part of the buffer to stdout */
+       while (len) {
+               int ret = xwrite(1, buffer + offset, len);
+               if (ret <= 0)
+                       break;
+               len -= ret;
+               offset += ret;
+       }
+
+       /* All done */
+       if (!quiet)
+               fprintf(stderr, "\n");
+       return 0;
+}
index d2556f376b293d2907cd8416e99f9c0bd31781ca..9f0cf28ba2dde7c5000029107460a3f4ca873aa3 100644 (file)
@@ -23,7 +23,7 @@ static int allow_replace;
 static int info_only;
 static int force_remove;
 static int verbose;
-static int mark_valid_only = 0;
+static int mark_valid_only;
 #define MARK_VALID 1
 #define UNMARK_VALID 2
 
diff --git a/builtin-verify-pack.c b/builtin-verify-pack.c
new file mode 100644 (file)
index 0000000..7d39d9b
--- /dev/null
@@ -0,0 +1,79 @@
+#include "builtin.h"
+#include "cache.h"
+#include "pack.h"
+
+static int verify_one_pack(const char *path, int verbose)
+{
+       char arg[PATH_MAX];
+       int len;
+       struct packed_git *pack;
+       int err;
+
+       len = strlcpy(arg, path, PATH_MAX);
+       if (len >= PATH_MAX)
+               return error("name too long: %s", path);
+
+       /*
+        * In addition to "foo.idx" we accept "foo.pack" and "foo";
+        * normalize these forms to "foo.idx" for add_packed_git().
+        */
+       if (has_extension(arg, ".pack")) {
+               strcpy(arg + len - 5, ".idx");
+               len--;
+       } else if (!has_extension(arg, ".idx")) {
+               if (len + 4 >= PATH_MAX)
+                       return error("name too long: %s.idx", arg);
+               strcpy(arg + len, ".idx");
+               len += 4;
+       }
+
+       /*
+        * add_packed_git() uses our buffer (containing "foo.idx") to
+        * build the pack filename ("foo.pack").  Make sure it fits.
+        */
+       if (len + 1 >= PATH_MAX) {
+               arg[len - 4] = '\0';
+               return error("name too long: %s.pack", arg);
+       }
+
+       pack = add_packed_git(arg, len, 1);
+       if (!pack)
+               return error("packfile %s not found.", arg);
+
+       err = verify_pack(pack, verbose);
+       free(pack);
+
+       return err;
+}
+
+static const char verify_pack_usage[] = "git-verify-pack [-v] <pack>...";
+
+int cmd_verify_pack(int argc, const char **argv, const char *prefix)
+{
+       int err = 0;
+       int verbose = 0;
+       int no_more_options = 0;
+       int nothing_done = 1;
+
+       while (1 < argc) {
+               if (!no_more_options && argv[1][0] == '-') {
+                       if (!strcmp("-v", argv[1]))
+                               verbose = 1;
+                       else if (!strcmp("--", argv[1]))
+                               no_more_options = 1;
+                       else
+                               usage(verify_pack_usage);
+               }
+               else {
+                       if (verify_one_pack(argv[1], verbose))
+                               err = 1;
+                       nothing_done = 0;
+               }
+               argc--; argv++;
+       }
+
+       if (nothing_done)
+               usage(verify_pack_usage);
+
+       return err;
+}
index 26ebcaf213111724e8131e9edc8eeb8672e8071e..ade58c4a1f06b161f00caa015192fa89c137d273 100644 (file)
--- a/builtin.h
+++ b/builtin.h
@@ -8,57 +8,57 @@ extern const char git_version_string[];
 extern const char git_usage_string[];
 
 extern void help_unknown_cmd(const char *cmd);
+extern int mailinfo(FILE *in, FILE *out, int ks, const char *encoding, const char *msg, const char *patch);
+extern int split_mbox(const char **mbox, const char *dir, int allow_bare, int nr_prec, int skip);
+extern void stripspace(FILE *in, FILE *out);
+extern int write_tree(unsigned char *sha1, int missing_ok, const char *prefix);
 
-extern int cmd_help(int argc, const char **argv, const char *prefix);
-extern int cmd_version(int argc, const char **argv, const char *prefix);
-
-extern int cmd_whatchanged(int argc, const char **argv, const char *prefix);
-extern int cmd_show(int argc, const char **argv, const char *prefix);
-extern int cmd_log(int argc, const char **argv, const char *prefix);
-extern int cmd_diff(int argc, const char **argv, const char *prefix);
-extern int cmd_format_patch(int argc, const char **argv, const char *prefix);
-extern int cmd_count_objects(int argc, const char **argv, const char *prefix);
-
-extern int cmd_prune(int argc, const char **argv, const char *prefix);
-extern int cmd_prune_packed(int argc, const char **argv, const char *prefix);
-
-extern int cmd_push(int argc, const char **argv, const char *prefix);
-extern int cmd_grep(int argc, const char **argv, const char *prefix);
-extern int cmd_rm(int argc, const char **argv, const char *prefix);
 extern int cmd_add(int argc, const char **argv, const char *prefix);
-extern int cmd_rev_list(int argc, const char **argv, const char *prefix);
+extern int cmd_apply(int argc, const char **argv, const char *prefix);
+extern int cmd_cat_file(int argc, const char **argv, const char *prefix);
+extern int cmd_checkout_index(int argc, const char **argv, const char *prefix);
 extern int cmd_check_ref_format(int argc, const char **argv, const char *prefix);
-extern int cmd_init_db(int argc, const char **argv, const char *prefix);
-extern int cmd_tar_tree(int argc, const char **argv, const char *prefix);
-extern int cmd_upload_tar(int argc, const char **argv, const char *prefix);
-extern int cmd_get_tar_commit_id(int argc, const char **argv, const char *prefix);
-extern int cmd_ls_files(int argc, const char **argv, const char *prefix);
-extern int cmd_ls_tree(int argc, const char **argv, const char *prefix);
-extern int cmd_read_tree(int argc, const char **argv, const char *prefix);
 extern int cmd_commit_tree(int argc, const char **argv, const char *prefix);
-extern int cmd_apply(int argc, const char **argv, const char *prefix);
-extern int cmd_show_branch(int argc, const char **argv, const char *prefix);
+extern int cmd_count_objects(int argc, const char **argv, const char *prefix);
 extern int cmd_diff_files(int argc, const char **argv, const char *prefix);
 extern int cmd_diff_index(int argc, const char **argv, const char *prefix);
+extern int cmd_diff(int argc, const char **argv, const char *prefix);
 extern int cmd_diff_stages(int argc, const char **argv, const char *prefix);
 extern int cmd_diff_tree(int argc, const char **argv, const char *prefix);
-extern int cmd_cat_file(int argc, const char **argv, const char *prefix);
-extern int cmd_rev_parse(int argc, const char **argv, const char *prefix);
-extern int cmd_update_index(int argc, const char **argv, const char *prefix);
-extern int cmd_update_ref(int argc, const char **argv, const char *prefix);
 extern int cmd_fmt_merge_msg(int argc, const char **argv, const char *prefix);
+extern int cmd_format_patch(int argc, const char **argv, const char *prefix);
+extern int cmd_get_tar_commit_id(int argc, const char **argv, const char *prefix);
+extern int cmd_grep(int argc, const char **argv, const char *prefix);
+extern int cmd_help(int argc, const char **argv, const char *prefix);
+extern int cmd_init_db(int argc, const char **argv, const char *prefix);
+extern int cmd_log(int argc, const char **argv, const char *prefix);
+extern int cmd_ls_files(int argc, const char **argv, const char *prefix);
+extern int cmd_ls_tree(int argc, const char **argv, const char *prefix);
+extern int cmd_mailinfo(int argc, const char **argv, const char *prefix);
+extern int cmd_mailsplit(int argc, const char **argv, const char *prefix);
 extern int cmd_mv(int argc, const char **argv, const char *prefix);
+extern int cmd_name_rev(int argc, const char **argv, const char *prefix);
+extern int cmd_pack_objects(int argc, const char **argv, const char *prefix);
+extern int cmd_prune(int argc, const char **argv, const char *prefix);
+extern int cmd_prune_packed(int argc, const char **argv, const char *prefix);
+extern int cmd_push(int argc, const char **argv, const char *prefix);
+extern int cmd_read_tree(int argc, const char **argv, const char *prefix);
 extern int cmd_repo_config(int argc, const char **argv, const char *prefix);
-
+extern int cmd_rev_list(int argc, const char **argv, const char *prefix);
+extern int cmd_rev_parse(int argc, const char **argv, const char *prefix);
+extern int cmd_rm(int argc, const char **argv, const char *prefix);
+extern int cmd_show_branch(int argc, const char **argv, const char *prefix);
+extern int cmd_show(int argc, const char **argv, const char *prefix);
+extern int cmd_stripspace(int argc, const char **argv, const char *prefix);
+extern int cmd_symbolic_ref(int argc, const char **argv, const char *prefix);
+extern int cmd_tar_tree(int argc, const char **argv, const char *prefix);
+extern int cmd_unpack_objects(int argc, const char **argv, const char *prefix);
+extern int cmd_update_index(int argc, const char **argv, const char *prefix);
+extern int cmd_update_ref(int argc, const char **argv, const char *prefix);
+extern int cmd_upload_tar(int argc, const char **argv, const char *prefix);
+extern int cmd_version(int argc, const char **argv, const char *prefix);
+extern int cmd_whatchanged(int argc, const char **argv, const char *prefix);
 extern int cmd_write_tree(int argc, const char **argv, const char *prefix);
-extern int write_tree(unsigned char *sha1, int missing_ok, const char *prefix);
+extern int cmd_verify_pack(int argc, const char **argv, const char *prefix);
 
-extern int cmd_mailsplit(int argc, const char **argv, const char *prefix);
-extern int split_mbox(const char **mbox, const char *dir, int allow_bare, int nr_prec, int skip);
-
-extern int cmd_mailinfo(int argc, const char **argv, const char *prefix);
-extern int mailinfo(FILE *in, FILE *out, int ks, const char *encoding, const char *msg, const char *patch);
-
-extern int cmd_stripspace(int argc, const char **argv, const char *prefix);
-extern void stripspace(FILE *in, FILE *out);
 #endif
diff --git a/cache.h b/cache.h
index b2ab2088e37d39a4c8e1927591015bf05a813233..c7382996f62061f1022262fcc6e6f3f15e946d0a 100644 (file)
--- a/cache.h
+++ b/cache.h
@@ -210,6 +210,10 @@ extern char *sha1_pack_name(const unsigned char *sha1);
 extern char *sha1_pack_index_name(const unsigned char *sha1);
 extern const char *find_unique_abbrev(const unsigned char *sha1, int);
 extern const unsigned char null_sha1[20];
+static inline int is_null_sha1(const unsigned char *sha1)
+{
+       return !memcmp(sha1, null_sha1, 20);
+}
 
 int git_mkstemp(char *path, size_t n, const char *template);
 
@@ -244,6 +248,8 @@ extern int move_temp_to_file(const char *tmpfile, char *filename);
 
 extern int has_sha1_pack(const unsigned char *sha1);
 extern int has_sha1_file(const unsigned char *sha1);
+extern void *map_sha1_file(const unsigned char *sha1, unsigned long *);
+extern int legacy_loose_object(unsigned char *);
 
 extern int has_pack_file(const unsigned char *sha1);
 extern int has_pack_index(const unsigned char *sha1);
diff --git a/checkout-index.c b/checkout-index.c
deleted file mode 100644 (file)
index dfb1c44..0000000
+++ /dev/null
@@ -1,311 +0,0 @@
-/*
- * Check-out files from the "current cache directory"
- *
- * Copyright (C) 2005 Linus Torvalds
- *
- * Careful: order of argument flags does matter. For example,
- *
- *     git-checkout-index -a -f file.c
- *
- * Will first check out all files listed in the cache (but not
- * overwrite any old ones), and then force-checkout "file.c" a
- * second time (ie that one _will_ overwrite any old contents
- * with the same filename).
- *
- * Also, just doing "git-checkout-index" does nothing. You probably
- * meant "git-checkout-index -a". And if you want to force it, you
- * want "git-checkout-index -f -a".
- *
- * Intuitiveness is not the goal here. Repeatability is. The
- * reason for the "no arguments means no work" thing is that
- * from scripts you are supposed to be able to do things like
- *
- *     find . -name '*.h' -print0 | xargs -0 git-checkout-index -f --
- *
- * or:
- *
- *     find . -name '*.h' -print0 | git-checkout-index -f -z --stdin
- *
- * which will force all existing *.h files to be replaced with
- * their cached copies. If an empty command line implied "all",
- * then this would force-refresh everything in the cache, which
- * was not the point.
- *
- * Oh, and the "--" is just a good idea when you know the rest
- * will be filenames. Just so that you wouldn't have a filename
- * of "-a" causing problems (not possible in the above example,
- * but get used to it in scripting!).
- */
-#include "cache.h"
-#include "strbuf.h"
-#include "quote.h"
-#include "cache-tree.h"
-
-#define CHECKOUT_ALL 4
-static const char *prefix;
-static int prefix_length;
-static int line_termination = '\n';
-static int checkout_stage; /* default to checkout stage0 */
-static int to_tempfile;
-static char topath[4][MAXPATHLEN+1];
-
-static struct checkout state;
-
-static void write_tempfile_record (const char *name)
-{
-       int i;
-
-       if (CHECKOUT_ALL == checkout_stage) {
-               for (i = 1; i < 4; i++) {
-                       if (i > 1)
-                               putchar(' ');
-                       if (topath[i][0])
-                               fputs(topath[i], stdout);
-                       else
-                               putchar('.');
-               }
-       } else
-               fputs(topath[checkout_stage], stdout);
-
-       putchar('\t');
-       write_name_quoted("", 0, name + prefix_length,
-               line_termination, stdout);
-       putchar(line_termination);
-
-       for (i = 0; i < 4; i++) {
-               topath[i][0] = 0;
-       }
-}
-
-static int checkout_file(const char *name)
-{
-       int namelen = strlen(name);
-       int pos = cache_name_pos(name, namelen);
-       int has_same_name = 0;
-       int did_checkout = 0;
-       int errs = 0;
-
-       if (pos < 0)
-               pos = -pos - 1;
-
-       while (pos < active_nr) {
-               struct cache_entry *ce = active_cache[pos];
-               if (ce_namelen(ce) != namelen ||
-                   memcmp(ce->name, name, namelen))
-                       break;
-               has_same_name = 1;
-               pos++;
-               if (ce_stage(ce) != checkout_stage
-                   && (CHECKOUT_ALL != checkout_stage || !ce_stage(ce)))
-                       continue;
-               did_checkout = 1;
-               if (checkout_entry(ce, &state,
-                   to_tempfile ? topath[ce_stage(ce)] : NULL) < 0)
-                       errs++;
-       }
-
-       if (did_checkout) {
-               if (to_tempfile)
-                       write_tempfile_record(name);
-               return errs > 0 ? -1 : 0;
-       }
-
-       if (!state.quiet) {
-               fprintf(stderr, "git-checkout-index: %s ", name);
-               if (!has_same_name)
-                       fprintf(stderr, "is not in the cache");
-               else if (checkout_stage)
-                       fprintf(stderr, "does not exist at stage %d",
-                               checkout_stage);
-               else
-                       fprintf(stderr, "is unmerged");
-               fputc('\n', stderr);
-       }
-       return -1;
-}
-
-static int checkout_all(void)
-{
-       int i, errs = 0;
-       struct cache_entry* last_ce = NULL;
-
-       for (i = 0; i < active_nr ; i++) {
-               struct cache_entry *ce = active_cache[i];
-               if (ce_stage(ce) != checkout_stage
-                   && (CHECKOUT_ALL != checkout_stage || !ce_stage(ce)))
-                       continue;
-               if (prefix && *prefix &&
-                   (ce_namelen(ce) <= prefix_length ||
-                    memcmp(prefix, ce->name, prefix_length)))
-                       continue;
-               if (last_ce && to_tempfile) {
-                       if (ce_namelen(last_ce) != ce_namelen(ce)
-                           || memcmp(last_ce->name, ce->name, ce_namelen(ce)))
-                               write_tempfile_record(last_ce->name);
-               }
-               if (checkout_entry(ce, &state,
-                   to_tempfile ? topath[ce_stage(ce)] : NULL) < 0)
-                       errs++;
-               last_ce = ce;
-       }
-       if (last_ce && to_tempfile)
-               write_tempfile_record(last_ce->name);
-       if (errs)
-               /* we have already done our error reporting.
-                * exit with the same code as die().
-                */
-               exit(128);
-       return 0;
-}
-
-static const char checkout_cache_usage[] =
-"git-checkout-index [-u] [-q] [-a] [-f] [-n] [--stage=[123]|all] [--prefix=<string>] [--temp] [--] <file>...";
-
-static struct lock_file lock_file;
-
-int main(int argc, char **argv)
-{
-       int i;
-       int newfd = -1;
-       int all = 0;
-       int read_from_stdin = 0;
-
-       state.base_dir = "";
-       prefix = setup_git_directory();
-       git_config(git_default_config);
-       prefix_length = prefix ? strlen(prefix) : 0;
-
-       if (read_cache() < 0) {
-               die("invalid cache");
-       }
-
-       for (i = 1; i < argc; i++) {
-               const char *arg = argv[i];
-
-               if (!strcmp(arg, "--")) {
-                       i++;
-                       break;
-               }
-               if (!strcmp(arg, "-a") || !strcmp(arg, "--all")) {
-                       all = 1;
-                       continue;
-               }
-               if (!strcmp(arg, "-f") || !strcmp(arg, "--force")) {
-                       state.force = 1;
-                       continue;
-               }
-               if (!strcmp(arg, "-q") || !strcmp(arg, "--quiet")) {
-                       state.quiet = 1;
-                       continue;
-               }
-               if (!strcmp(arg, "-n") || !strcmp(arg, "--no-create")) {
-                       state.not_new = 1;
-                       continue;
-               }
-               if (!strcmp(arg, "-u") || !strcmp(arg, "--index")) {
-                       state.refresh_cache = 1;
-                       if (newfd < 0)
-                               newfd = hold_lock_file_for_update
-                                       (&lock_file, get_index_file(), 1);
-                       if (newfd < 0)
-                               die("cannot open index.lock file.");
-                       continue;
-               }
-               if (!strcmp(arg, "-z")) {
-                       line_termination = 0;
-                       continue;
-               }
-               if (!strcmp(arg, "--stdin")) {
-                       if (i != argc - 1)
-                               die("--stdin must be at the end");
-                       read_from_stdin = 1;
-                       i++; /* do not consider arg as a file name */
-                       break;
-               }
-               if (!strcmp(arg, "--temp")) {
-                       to_tempfile = 1;
-                       continue;
-               }
-               if (!strncmp(arg, "--prefix=", 9)) {
-                       state.base_dir = arg+9;
-                       state.base_dir_len = strlen(state.base_dir);
-                       continue;
-               }
-               if (!strncmp(arg, "--stage=", 8)) {
-                       if (!strcmp(arg + 8, "all")) {
-                               to_tempfile = 1;
-                               checkout_stage = CHECKOUT_ALL;
-                       } else {
-                               int ch = arg[8];
-                               if ('1' <= ch && ch <= '3')
-                                       checkout_stage = arg[8] - '0';
-                               else
-                                       die("stage should be between 1 and 3 or all");
-                       }
-                       continue;
-               }
-               if (arg[0] == '-')
-                       usage(checkout_cache_usage);
-               break;
-       }
-
-       if (state.base_dir_len || to_tempfile) {
-               /* when --prefix is specified we do not
-                * want to update cache.
-                */
-               if (state.refresh_cache) {
-                       close(newfd); newfd = -1;
-                       rollback_lock_file(&lock_file);
-               }
-               state.refresh_cache = 0;
-       }
-
-       /* Check out named files first */
-       for ( ; i < argc; i++) {
-               const char *arg = argv[i];
-               const char *p;
-
-               if (all)
-                       die("git-checkout-index: don't mix '--all' and explicit filenames");
-               if (read_from_stdin)
-                       die("git-checkout-index: don't mix '--stdin' and explicit filenames");
-               p = prefix_path(prefix, prefix_length, arg);
-               checkout_file(p);
-               if (p < arg || p > arg + strlen(arg))
-                       free((char*)p);
-       }
-
-       if (read_from_stdin) {
-               struct strbuf buf;
-               if (all)
-                       die("git-checkout-index: don't mix '--all' and '--stdin'");
-               strbuf_init(&buf);
-               while (1) {
-                       char *path_name;
-                       const char *p;
-
-                       read_line(&buf, stdin, line_termination);
-                       if (buf.eof)
-                               break;
-                       if (line_termination && buf.buf[0] == '"')
-                               path_name = unquote_c_style(buf.buf, NULL);
-                       else
-                               path_name = buf.buf;
-                       p = prefix_path(prefix, prefix_length, path_name);
-                       checkout_file(p);
-                       if (p < path_name || p > path_name + strlen(path_name))
-                               free((char *)p);
-                       if (path_name != buf.buf)
-                               free(path_name);
-               }
-       }
-
-       if (all)
-               checkout_all();
-
-       if (0 <= newfd &&
-           (write_cache(newfd, active_cache, active_nr) ||
-            close(newfd) || commit_lock_file(&lock_file)))
-               die("Unable to write new index file");
-       return 0;
-}
index ba8baca0ab9f2c3c48b4678108d4a62c1f9f8fd9..ce063b4ffa48eb1db8849d5aabb6732fc98946b6 100644 (file)
@@ -7,13 +7,6 @@
 #include "xdiff-interface.h"
 #include "log-tree.h"
 
-static int uninteresting(struct diff_filepair *p)
-{
-       if (diff_unmodified_pair(p))
-               return 1;
-       return 0;
-}
-
 static struct combine_diff_path *intersect_paths(struct combine_diff_path *curr, int n, int num_parent)
 {
        struct diff_queue_struct *q = &diff_queued_diff;
@@ -25,7 +18,7 @@ static struct combine_diff_path *intersect_paths(struct combine_diff_path *curr,
                for (i = 0; i < q->nr; i++) {
                        int len;
                        const char *path;
-                       if (uninteresting(q->queue[i]))
+                       if (diff_unmodified_pair(q->queue[i]))
                                continue;
                        path = q->queue[i]->two->path;
                        len = strlen(path);
@@ -57,7 +50,7 @@ static struct combine_diff_path *intersect_paths(struct combine_diff_path *curr,
                        const char *path;
                        int len;
 
-                       if (uninteresting(q->queue[i]))
+                       if (diff_unmodified_pair(q->queue[i]))
                                continue;
                        path = q->queue[i]->two->path;
                        len = strlen(path);
@@ -101,7 +94,7 @@ static char *grab_blob(const unsigned char *sha1, unsigned long *size)
 {
        char *blob;
        char type[20];
-       if (!memcmp(sha1, null_sha1, 20)) {
+       if (is_null_sha1(sha1)) {
                /* deleted blob */
                *size = 0;
                return xcalloc(1, 1);
@@ -609,16 +602,16 @@ static void dump_quoted_path(const char *prefix, const char *path,
        printf("%s\n", c_reset);
 }
 
-static int show_patch_diff(struct combine_diff_path *elem, int num_parent,
-                          int dense, struct rev_info *rev)
+static void show_patch_diff(struct combine_diff_path *elem, int num_parent,
+                           int dense, struct rev_info *rev)
 {
        struct diff_options *opt = &rev->diffopt;
        unsigned long result_size, cnt, lno;
        char *result, *cp;
        struct sline *sline; /* survived lines */
        int mode_differs = 0;
-       int i, show_hunks, shown_header = 0;
-       int working_tree_file = !memcmp(elem->sha1, null_sha1, 20);
+       int i, show_hunks;
+       int working_tree_file = is_null_sha1(elem->sha1);
        int abbrev = opt->full_index ? 40 : DEFAULT_ABBREV;
        mmfile_t result_file;
 
@@ -769,7 +762,6 @@ static int show_patch_diff(struct combine_diff_path *elem, int num_parent,
        }
        free(sline[0].p_lno);
        free(sline);
-       return shown_header;
 }
 
 #define COLONS "::::::::::::::::::::::::::::::::"
@@ -837,11 +829,10 @@ void show_combined_diff(struct combine_diff_path *p,
                return;
        if (opt->output_format & (DIFF_FORMAT_RAW |
                                  DIFF_FORMAT_NAME |
-                                 DIFF_FORMAT_NAME_STATUS)) {
+                                 DIFF_FORMAT_NAME_STATUS))
                show_raw_diff(p, num_parent, rev);
-       } else if (opt->output_format & DIFF_FORMAT_PATCH) {
+       else if (opt->output_format & DIFF_FORMAT_PATCH)
                show_patch_diff(p, num_parent, dense, rev);
-       }
 }
 
 void diff_tree_combined(const unsigned char *sha1,
index 77f0ca175c66b0ef0b7ac5b24672b106c6f17178..972d1b70c02d0a21bbb187ef964e6604d4556e87 100644 (file)
--- a/commit.c
+++ b/commit.c
@@ -727,10 +727,10 @@ struct commit *pop_commit(struct commit_list **stack)
 
 int count_parents(struct commit * commit)
 {
-        int count = 0;
+        int count;
         struct commit_list * parents = commit->parents;
-        for (count=0;parents; parents=parents->next,count++)
-          ;
+        for (count = 0; parents; parents = parents->next,count++)
+               ;
         return count;
 }
 
index 04f508ab90527f5d71462b245b6b598d689c1853..369e6116e0aa63bc9e6ca88996b2dcfc12ebb967 100644 (file)
@@ -22,3 +22,19 @@ VPATH = @srcdir@
 export exec_prefix mandir
 export srcdir VPATH
 
+NO_PYTHON=@NO_PYTHON@
+NEEDS_SSL_WITH_CRYPTO=@NEEDS_SSL_WITH_CRYPTO@
+NO_OPENSSL=@NO_OPENSSL@
+NO_CURL=@NO_CURL@
+NO_EXPAT=@NO_EXPAT@
+NEEDS_LIBICONV=@NEEDS_LIBICONV@
+NEEDS_SOCKET=@NEEDS_SOCKET@
+NO_D_INO_IN_DIRENT=@NO_D_INO_IN_DIRENT@
+NO_D_TYPE_IN_DIRENT=@NO_D_TYPE_IN_DIRENT@
+NO_SOCKADDR_STORAGE=@NO_SOCKADDR_STORAGE@
+NO_IPV6=@NO_IPV6@
+NO_C99_FORMAT=@NO_C99_FORMAT@
+NO_STRCASESTR=@NO_STRCASESTR@
+NO_STRLCPY=@NO_STRLCPY@
+NO_SETENV=@NO_SETENV@
+
index a9c88c6a4df0ab6a75a748bbadc4d429b6b415fa..36f9cd94d847f1dc95d293ebafbab74cf37fec53 100644 (file)
@@ -2,7 +2,7 @@
 # Process this file with autoconf to produce a configure script.
 
 AC_PREREQ(2.59)
-AC_INIT([git], [1.4.2], [git@vger.kernel.org])
+AC_INIT([git], [@@GIT_VERSION@@], [git@vger.kernel.org])
 
 AC_CONFIG_SRCDIR([git.c])
 
@@ -19,6 +19,77 @@ echo "# ${config_append}.  Generated by configure." > "${config_append}"
 # Append LINE to file ${config_append}
 AC_DEFUN([GIT_CONF_APPEND_LINE],
 [echo "$1" >> "${config_append}"])# GIT_CONF_APPEND_LINE
+#
+# GIT_ARG_SET_PATH(PROGRAM)
+# -------------------------
+# Provide --with-PROGRAM=PATH option to set PATH to PROGRAM
+AC_DEFUN([GIT_ARG_SET_PATH],
+[AC_ARG_WITH([$1],
+ [AS_HELP_STRING([--with-$1=PATH],
+                 [provide PATH to $1])],
+ [GIT_CONF_APPEND_PATH($1)],[])
+])# GIT_ARG_SET_PATH
+#
+# GIT_CONF_APPEND_PATH(PROGRAM)
+# ------------------------------
+# Parse --with-PROGRAM=PATH option to set PROGRAM_PATH=PATH
+# Used by GIT_ARG_SET_PATH(PROGRAM)
+AC_DEFUN([GIT_CONF_APPEND_PATH],
+[PROGRAM=m4_toupper($1); \
+if test "$withval" = "no"; then \
+       AC_MSG_ERROR([You cannot use git without $1]); \
+else \
+       if test "$withval" = "yes"; then \
+               AC_MSG_WARN([You should provide path for --with-$1=PATH]); \
+       else \
+               GIT_CONF_APPEND_LINE(${PROGRAM}_PATH=$withval); \
+       fi; \
+fi; \
+]) # GIT_CONF_APPEND_PATH
+#
+# GIT_PARSE_WITH(PACKAGE)
+# -----------------------
+# For use in AC_ARG_WITH action-if-found, for packages default ON.
+# * Set NO_PACKAGE=YesPlease for --without-PACKAGE
+# * Set PACKAGEDIR=PATH for --with-PACKAGE=PATH
+# * Unset NO_PACKAGE for --with-PACKAGE without ARG
+AC_DEFUN([GIT_PARSE_WITH],
+[PACKAGE=m4_toupper($1); \
+if test "$withval" = "no"; then \
+       m4_toupper(NO_$1)=YesPlease; \
+elif test "$withval" = "yes"; then \
+       m4_toupper(NO_$1)=; \
+else \
+       m4_toupper(NO_$1)=; \
+       GIT_CONF_APPEND_LINE(${PACKAGE}DIR=$withval); \
+fi \
+])# GIT_PARSE_WITH
+
+
+## Site configuration related to programs (before tests)
+## --with-PACKAGE[=ARG] and --without-PACKAGE
+#
+# Define SHELL_PATH to provide path to shell.
+GIT_ARG_SET_PATH(shell)
+#
+# Define PERL_PATH to provide path to Perl.
+GIT_ARG_SET_PATH(perl)
+#
+# Define NO_PYTHON if you want to lose all benefits of the recursive merge.
+# Define PYTHON_PATH to provide path to Python.
+AC_ARG_WITH(python,[AS_HELP_STRING([--with-python=PATH], [provide PATH to python])
+AS_HELP_STRING([--without-python], [don't use python scripts])],
+ [if test "$withval" = "no"; then \
+    NO_PYTHON=YesPlease; \
+  elif test "$withval" = "yes"; then \
+    NO_PYTHON=; \
+  else \
+    NO_PYTHON=; \
+    PYTHON_PATH=$withval; \
+  fi; \
+ ])
+AC_SUBST(NO_PYTHON)
+AC_SUBST(PYTHON_PATH)
 
 
 ## Checks for programs.
@@ -30,6 +101,16 @@ AC_CHECK_TOOL(AR, ar, :)
 AC_CHECK_PROGS(TAR, [gtar tar])
 #
 # Define NO_PYTHON if you want to lose all benefits of the recursive merge.
+# Define PYTHON_PATH to provide path to Python.
+if test -z "$NO_PYTHON"; then
+       if test -z "$PYTHON_PATH"; then
+               AC_PATH_PROGS(PYTHON_PATH, [python python2.4 python2.3 python2])
+       fi
+       if test -n "$PYTHON_PATH"; then
+               GIT_CONF_APPEND_LINE([PYTHON_PATH=@PYTHON_PATH@])
+               NO_PYTHON=""
+       fi
+fi
 
 
 ## Checks for libraries.
@@ -37,32 +118,43 @@ AC_MSG_NOTICE([CHECKS for libraries])
 #
 # Define NO_OPENSSL environment variable if you do not have OpenSSL.
 # Define NEEDS_SSL_WITH_CRYPTO if you need -lcrypto with -lssl (Darwin).
-AC_CHECK_LIB([ssl], [SHA1_Init],[],
-[AC_CHECK_LIB([crypto], [SHA1_INIT],
- [GIT_CONF_APPEND_LINE(NEEDS_SSL_WITH_CRYPTO=YesPlease)],
- [GIT_CONF_APPEND_LINE(NO_OPENSSL=YesPlease)])])
+AC_CHECK_LIB([crypto], [SHA1_Init],
+[NEEDS_SSL_WITH_CRYPTO=],
+[AC_CHECK_LIB([ssl], [SHA1_Init],
+ [NEEDS_SSL_WITH_CRYPTO=YesPlease
+  NEEDS_SSL_WITH_CRYPTO=],
+ [NO_OPENSSL=YesPlease])])
+AC_SUBST(NEEDS_SSL_WITH_CRYPTO)
+AC_SUBST(NO_OPENSSL)
 #
 # Define NO_CURL if you do not have curl installed.  git-http-pull and
 # git-http-push are not built, and you cannot use http:// and https://
 # transports.
-AC_CHECK_LIB([curl], [curl_global_init],[],
-[GIT_CONF_APPEND_LINE(NO_CURL=YesPlease)])
+AC_CHECK_LIB([curl], [curl_global_init],
+[NO_CURL=],
+[NO_CURL=YesPlease])
+AC_SUBST(NO_CURL)
 #
 # Define NO_EXPAT if you do not have expat installed.  git-http-push is
 # not built, and you cannot push using http:// and https:// transports.
-AC_CHECK_LIB([expat], [XML_ParserCreate],[],
-[GIT_CONF_APPEND_LINE(NO_EXPAT=YesPlease)])
+AC_CHECK_LIB([expat], [XML_ParserCreate],
+[NO_EXPAT=],
+[NO_EXPAT=YesPlease])
+AC_SUBST(NO_EXPAT)
 #
 # Define NEEDS_LIBICONV if linking with libc is not enough (Darwin).
-AC_CHECK_LIB([c], [iconv],[],
-[AC_CHECK_LIB([iconv],[iconv],
- [GIT_CONF_APPEND_LINE(NEEDS_LIBICONV=YesPlease)],[])])
+AC_CHECK_LIB([c], [iconv],
+[NEEDS_LIBICONV=],
+[NEEDS_LIBICONV=YesPlease])
+AC_SUBST(NEEDS_LIBICONV)
 #
 # Define NEEDS_SOCKET if linking with libc is not enough (SunOS,
 # Patrick Mauritz).
-AC_CHECK_LIB([c], [socket],[],
-[AC_CHECK_LIB([socket],[socket],
- [GIT_CONF_APPEND_LINE(NEEDS_SOCKET=YesPlease)],[])])
+AC_CHECK_LIB([c], [socket],
+[NEEDS_SOCKET=],
+[NEEDS_SOCKET=YesPlease])
+AC_SUBST(NEEDS_SOCKET)
+test -n "$NEEDS_SOCKET" && LIBS="$LIBS -lsocket"
 
 
 ## Checks for header files.
@@ -72,21 +164,65 @@ AC_CHECK_LIB([c], [socket],[],
 AC_MSG_NOTICE([CHECKS for typedefs, structures, and compiler characteristics])
 #
 # Define NO_D_INO_IN_DIRENT if you don't have d_ino in your struct dirent.
-AC_CHECK_MEMBER(struct dirent.d_ino,[],
-[GIT_CONF_APPEND_LINE(NO_D_INO_IN_DIRENT=YesPlease)],
+AC_CHECK_MEMBER(struct dirent.d_ino,
+[NO_D_INO_IN_DIRENT=],
+[NO_D_INO_IN_DIRENT=YesPlease],
 [#include <dirent.h>])
+AC_SUBST(NO_D_INO_IN_DIRENT)
 #
 # Define NO_D_TYPE_IN_DIRENT if your platform defines DT_UNKNOWN but lacks
 # d_type in struct dirent (latest Cygwin -- will be fixed soonish).
-AC_CHECK_MEMBER(struct dirent.d_type,[],
-[GIT_CONF_APPEND_LINE(NO_D_TYPE_IN_DIRENT=YesPlease)],
+AC_CHECK_MEMBER(struct dirent.d_type,
+[NO_D_TYPE_IN_DIRENT=],
+[NO_D_TYPE_IN_DIRENT=YesPlease],
 [#include <dirent.h>])
+AC_SUBST(NO_D_TYPE_IN_DIRENT)
 #
 # Define NO_SOCKADDR_STORAGE if your platform does not have struct
 # sockaddr_storage.
-AC_CHECK_TYPE(struct sockaddr_storage,[],
-[GIT_CONF_APPEND_LINE(NO_SOCKADDR_STORAGE=YesPlease)],
-[#include <netinet/in.h>])
+AC_CHECK_TYPE(struct sockaddr_storage,
+[NO_SOCKADDR_STORAGE=],
+[NO_SOCKADDR_STORAGE=YesPlease],[
+#include <sys/types.h>
+#include <sys/socket.h>
+])
+AC_SUBST(NO_SOCKADDR_STORAGE)
+#
+# Define NO_IPV6 if you lack IPv6 support and getaddrinfo().
+AC_CHECK_TYPE([struct addrinfo],[
+ AC_CHECK_FUNC([getaddrinfo],
+  [NO_IPV6=],
+  [NO_IPV6=YesPlease])
+],[NO_IPV6=YesPlease],[
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netdb.h>
+])
+AC_SUBST(NO_IPV6)
+#
+# Define NO_C99_FORMAT if your formatted IO functions (printf/scanf et.al.)
+# do not support the 'size specifiers' introduced by C99, namely ll, hh,
+# j, z, t. (representing long long int, char, intmax_t, size_t, ptrdiff_t).
+# some C compilers supported these specifiers prior to C99 as an extension.
+AC_CACHE_CHECK(whether formatted IO functions support C99 size specifiers,
+ ac_cv_c_c99_format,
+[# Actually git uses only %z (%zu) in alloc.c, and %t (%td) in mktag.c
+AC_RUN_IFELSE(
+       [AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
+               [[char buf[64];
+               if (sprintf(buf, "%lld%hhd%jd%zd%td", (long long int)1, (char)2, (intmax_t)3, (size_t)4, (ptrdiff_t)5) != 5)
+                 exit(1);
+               else if (strcmp(buf, "12345"))
+                 exit(2);]])],
+       [ac_cv_c_c99_format=yes],
+       [ac_cv_c_c99_format=no])
+])
+if test $ac_cv_c_c99_format = no; then
+       NO_C99_FORMAT=YesPlease
+else
+       NO_C99_FORMAT=
+fi
+AC_SUBST(NO_C99_FORMAT)
 
 
 ## Checks for library functions.
@@ -94,21 +230,25 @@ AC_CHECK_TYPE(struct sockaddr_storage,[],
 AC_MSG_NOTICE([CHECKS for library functions])
 #
 # Define NO_STRCASESTR if you don't have strcasestr.
-AC_CHECK_FUNC(strcasestr,[],
-[GIT_CONF_APPEND_LINE(NO_STRCASESTR=YesPlease)])
+AC_CHECK_FUNC(strcasestr,
+[NO_STRCASESTR=],
+[NO_STRCASESTR=YesPlease])
+AC_SUBST(NO_STRCASESTR)
 #
 # Define NO_STRLCPY if you don't have strlcpy.
-AC_CHECK_FUNC(strlcpy,[],
-[GIT_CONF_APPEND_LINE(NO_STRLCPY=YesPlease)])
+AC_CHECK_FUNC(strlcpy,
+[NO_STRLCPY=],
+[NO_STRLCPY=YesPlease])
+AC_SUBST(NO_STRLCPY)
 #
 # Define NO_SETENV if you don't have setenv in the C library.
-AC_CHECK_FUNC(setenv,[],
-[GIT_CONF_APPEND_LINE(NO_SETENV=YesPlease)])
+AC_CHECK_FUNC(setenv,
+[NO_SETENV=],
+[NO_SETENV=YesPlease])
+AC_SUBST(NO_SETENV)
 #
 # Define NO_MMAP if you want to avoid mmap.
 #
-# Define NO_IPV6 if you lack IPv6 support and getaddrinfo().
-#
 # Define NO_ICONV if your libc does not properly support iconv.
 
 
@@ -125,9 +265,11 @@ AC_CHECK_FUNC(setenv,[],
 # a missing newline at the end of the file.
 
 
-## Site configuration
+## Site configuration (override autodetection)
 ## --with-PACKAGE[=ARG] and --without-PACKAGE
-# Define NO_SVN_TESTS if you want to skip time-consuming SVN interopability
+AC_MSG_NOTICE([CHECKS for site configuration])
+#
+# Define NO_SVN_TESTS if you want to skip time-consuming SVN interoperability
 # tests.  These tests take up a significant amount of the total test time
 # but are not needed unless you plan to talk to SVN repos.
 #
@@ -145,21 +287,51 @@ AC_CHECK_FUNC(setenv,[],
 # Define NO_OPENSSL environment variable if you do not have OpenSSL.
 # This also implies MOZILLA_SHA1.
 #
+# Define OPENSSLDIR=/foo/bar if your openssl header and library files are in
+# /foo/bar/include and /foo/bar/lib directories.
+AC_ARG_WITH(openssl,
+AS_HELP_STRING([--with-openssl],[use OpenSSL library (default is YES)])
+AS_HELP_STRING([],              [ARG can be prefix for openssl library and headers]),\
+GIT_PARSE_WITH(openssl))
+#
 # Define NO_CURL if you do not have curl installed.  git-http-pull and
 # git-http-push are not built, and you cannot use http:// and https://
 # transports.
 #
 # Define CURLDIR=/foo/bar if your curl header and library files are in
 # /foo/bar/include and /foo/bar/lib directories.
+AC_ARG_WITH(curl,
+AS_HELP_STRING([--with-curl],[support http(s):// transports (default is YES)])
+AS_HELP_STRING([],           [ARG can be also prefix for curl library and headers]),
+GIT_PARSE_WITH(curl))
 #
 # Define NO_EXPAT if you do not have expat installed.  git-http-push is
 # not built, and you cannot push using http:// and https:// transports.
 #
-# Define NO_MMAP if you want to avoid mmap.
+# Define EXPATDIR=/foo/bar if your expat header and library files are in
+# /foo/bar/include and /foo/bar/lib directories.
+AC_ARG_WITH(expat,
+AS_HELP_STRING([--with-expat],
+[support git-push using http:// and https:// transports via WebDAV (default is YES)])
+AS_HELP_STRING([],            [ARG can be also prefix for expat library and headers]),
+GIT_PARSE_WITH(expat))
+#
+# Define NO_FINK if you are building on Darwin/Mac OS X, have Fink
+# installed in /sw, but don't want GIT to link against any libraries
+# installed there.  If defined you may specify your own (or Fink's)
+# include directories and library directories by defining CFLAGS
+# and LDFLAGS appropriately.
 #
-# Define NO_PYTHON if you want to loose all benefits of the recursive merge.
+# Define NO_DARWIN_PORTS if you are building on Darwin/Mac OS X,
+# have DarwinPorts installed in /opt/local, but don't want GIT to
+# link against any libraries installed there.  If defined you may
+# specify your own (or DarwinPort's) include directories and
+# library directories by defining CFLAGS and LDFLAGS appropriately.
 #
+# Define NO_MMAP if you want to avoid mmap.
+
 ## --enable-FEATURE[=ARG] and --disable-FEATURE
+#
 # Define COLLISION_CHECK below if you believe that SHA1's
 # 1461501637330902918203684832716283019655932542976 hashes do not give you
 # sufficient guarantee that no collisions between objects will ever happen.
index b9c222085ee1390c8f0c02f63304193fa78ce677..7a6a73f2a333d067c5a5442004f76ebbb9aaed17 100644 (file)
--- a/connect.c
+++ b/connect.c
@@ -10,7 +10,7 @@
 #include <netdb.h>
 #include <signal.h>
 
-static char *server_capabilities = NULL;
+static char *server_capabilities;
 
 static int check_ref(const char *name, int len, unsigned int flags)
 {
@@ -493,8 +493,8 @@ static void git_tcp_connect(int fd[2], char *host)
 }
 
 
-static char *git_proxy_command = NULL;
-static const char *rhost_name = NULL;
+static char *git_proxy_command;
+static const char *rhost_name;
 static int rhost_len;
 
 static int git_proxy_command_options(const char *var, const char *value)
index 6a7b40fd09ea9aa365d70dc8019f83e481192c07..e2278897d08b750f383ae5bb2ac7e738a99a7ae5 100644 (file)
@@ -10,7 +10,7 @@
 #include "cache.h"
 #include "csum-file.h"
 
-static int sha1flush(struct sha1file *f, unsigned int count)
+static void sha1flush(struct sha1file *f, unsigned int count)
 {
        void *buf = f->buffer;
 
@@ -21,7 +21,7 @@ static int sha1flush(struct sha1file *f, unsigned int count)
                        count -= ret;
                        if (count)
                                continue;
-                       return 0;
+                       return;
                }
                if (!ret)
                        die("sha1 file '%s' write error. Out of diskspace", f->name);
index 810837f0c4b8296ce762441c80527efdb6c9c3b6..012936f3bd76d9f9648ba9498b4126c7d6861e5c 100644 (file)
--- a/daemon.c
+++ b/daemon.c
@@ -22,24 +22,24 @@ static const char daemon_usage[] =
 "           [--reuseaddr] [--detach] [--pid-file=file] [directory...]";
 
 /* List of acceptable pathname prefixes */
-static char **ok_paths = NULL;
-static int strict_paths = 0;
+static char **ok_paths;
+static int strict_paths;
 
 /* If this is set, git-daemon-export-ok is not required */
-static int export_all_trees = 0;
+static int export_all_trees;
 
 /* Take all paths relative to this one if non-NULL */
-static char *base_path = NULL;
+static char *base_path;
 
 /* If defined, ~user notation is allowed and the string is inserted
  * after ~user/.  E.g. a request to git://host/~alice/frotz would
  * go to /home/alice/pub_git/frotz with --user-path=pub_git.
  */
-static const char *user_path = NULL;
+static const char *user_path;
 
 /* Timeout, and initial timeout */
-static unsigned int timeout = 0;
-static unsigned int init_timeout = 0;
+static unsigned int timeout;
+static unsigned int init_timeout;
 
 static void logreport(int priority, const char *err, va_list params)
 {
@@ -333,12 +333,12 @@ static int execute(struct sockaddr *addr)
 static int max_connections = 25;
 
 /* These are updated by the signal handler */
-static volatile unsigned int children_reaped = 0;
+static volatile unsigned int children_reaped;
 static pid_t dead_child[MAX_CHILDREN];
 
 /* These are updated by the main loop */
-static unsigned int children_spawned = 0;
-static unsigned int children_deleted = 0;
+static unsigned int children_spawned;
+static unsigned int children_deleted;
 
 static struct child {
        pid_t pid;
index 324ca8965b9512de59b515cdcc29801022553d1d..2b9301fc1205795e30dfd7a7493cb03cdebdb437 100644 (file)
@@ -8,12 +8,12 @@
 static const char describe_usage[] =
 "git-describe [--all] [--tags] [--abbrev=<n>] <committish>*";
 
-static int all = 0;    /* Default to annotated tags only */
-static int tags = 0;   /* But allow any tags if --tags is specified */
+static int all;        /* Default to annotated tags only */
+static int tags;       /* But allow any tags if --tags is specified */
 
 static int abbrev = DEFAULT_ABBREV;
 
-static int names = 0, allocs = 0;
+static int names, allocs;
 static struct commit_name {
        const struct commit *commit;
        int prio; /* annotated tag = 2, tag = 1, head = 0 */
diff --git a/diff.c b/diff.c
index b3b1781a9cac05457e42691970c93b6e1501f68c..7a238d023336d4340efd67534dae4ed23dd5d3c0 100644 (file)
--- a/diff.c
+++ b/diff.c
@@ -13,9 +13,9 @@
 
 static int use_size_cache;
 
-static int diff_detect_rename_default = 0;
+static int diff_detect_rename_default;
 static int diff_rename_limit_default = -1;
-static int diff_use_color_default = 0;
+static int diff_use_color_default;
 
 /* "\033[1;38;5;2xx;48;5;2xxm\0" is 23 bytes */
 static char diff_colors[][24] = {
@@ -358,12 +358,152 @@ static int fill_mmfile(mmfile_t *mf, struct diff_filespec *one)
        return 0;
 }
 
+struct diff_words_buffer {
+       mmfile_t text;
+       long alloc;
+       long current; /* output pointer */
+       int suppressed_newline;
+};
+
+static void diff_words_append(char *line, unsigned long len,
+               struct diff_words_buffer *buffer)
+{
+       if (buffer->text.size + len > buffer->alloc) {
+               buffer->alloc = (buffer->text.size + len) * 3 / 2;
+               buffer->text.ptr = xrealloc(buffer->text.ptr, buffer->alloc);
+       }
+       line++;
+       len--;
+       memcpy(buffer->text.ptr + buffer->text.size, line, len);
+       buffer->text.size += len;
+}
+
+struct diff_words_data {
+       struct xdiff_emit_state xm;
+       struct diff_words_buffer minus, plus;
+};
+
+static void print_word(struct diff_words_buffer *buffer, int len, int color,
+               int suppress_newline)
+{
+       const char *ptr;
+       int eol = 0;
+
+       if (len == 0)
+               return;
+
+       ptr  = buffer->text.ptr + buffer->current;
+       buffer->current += len;
+
+       if (ptr[len - 1] == '\n') {
+               eol = 1;
+               len--;
+       }
+
+       fputs(diff_get_color(1, color), stdout);
+       fwrite(ptr, len, 1, stdout);
+       fputs(diff_get_color(1, DIFF_RESET), stdout);
+
+       if (eol) {
+               if (suppress_newline)
+                       buffer->suppressed_newline = 1;
+               else
+                       putchar('\n');
+       }
+}
+
+static void fn_out_diff_words_aux(void *priv, char *line, unsigned long len)
+{
+       struct diff_words_data *diff_words = priv;
+
+       if (diff_words->minus.suppressed_newline) {
+               if (line[0] != '+')
+                       putchar('\n');
+               diff_words->minus.suppressed_newline = 0;
+       }
+
+       len--;
+       switch (line[0]) {
+               case '-':
+                       print_word(&diff_words->minus, len, DIFF_FILE_OLD, 1);
+                       break;
+               case '+':
+                       print_word(&diff_words->plus, len, DIFF_FILE_NEW, 0);
+                       break;
+               case ' ':
+                       print_word(&diff_words->plus, len, DIFF_PLAIN, 0);
+                       diff_words->minus.current += len;
+                       break;
+       }
+}
+
+/* this executes the word diff on the accumulated buffers */
+static void diff_words_show(struct diff_words_data *diff_words)
+{
+       xpparam_t xpp;
+       xdemitconf_t xecfg;
+       xdemitcb_t ecb;
+       mmfile_t minus, plus;
+       int i;
+
+       minus.size = diff_words->minus.text.size;
+       minus.ptr = xmalloc(minus.size);
+       memcpy(minus.ptr, diff_words->minus.text.ptr, minus.size);
+       for (i = 0; i < minus.size; i++)
+               if (isspace(minus.ptr[i]))
+                       minus.ptr[i] = '\n';
+       diff_words->minus.current = 0;
+
+       plus.size = diff_words->plus.text.size;
+       plus.ptr = xmalloc(plus.size);
+       memcpy(plus.ptr, diff_words->plus.text.ptr, plus.size);
+       for (i = 0; i < plus.size; i++)
+               if (isspace(plus.ptr[i]))
+                       plus.ptr[i] = '\n';
+       diff_words->plus.current = 0;
+
+       xpp.flags = XDF_NEED_MINIMAL;
+       xecfg.ctxlen = diff_words->minus.alloc + diff_words->plus.alloc;
+       xecfg.flags = 0;
+       ecb.outf = xdiff_outf;
+       ecb.priv = diff_words;
+       diff_words->xm.consume = fn_out_diff_words_aux;
+       xdl_diff(&minus, &plus, &xpp, &xecfg, &ecb);
+
+       free(minus.ptr);
+       free(plus.ptr);
+       diff_words->minus.text.size = diff_words->plus.text.size = 0;
+
+       if (diff_words->minus.suppressed_newline) {
+               putchar('\n');
+               diff_words->minus.suppressed_newline = 0;
+       }
+}
+
 struct emit_callback {
        struct xdiff_emit_state xm;
        int nparents, color_diff;
        const char **label_path;
+       struct diff_words_data *diff_words;
 };
 
+static void free_diff_words_data(struct emit_callback *ecbdata)
+{
+       if (ecbdata->diff_words) {
+               /* flush buffers */
+               if (ecbdata->diff_words->minus.text.size ||
+                               ecbdata->diff_words->plus.text.size)
+                       diff_words_show(ecbdata->diff_words);
+
+               if (ecbdata->diff_words->minus.text.ptr)
+                       free (ecbdata->diff_words->minus.text.ptr);
+               if (ecbdata->diff_words->plus.text.ptr)
+                       free (ecbdata->diff_words->plus.text.ptr);
+               free(ecbdata->diff_words);
+               ecbdata->diff_words = NULL;
+       }
+}
+
 const char *diff_get_color(int diff_use_color, enum color_diff ix)
 {
        if (diff_use_color)
@@ -398,12 +538,31 @@ static void fn_out_consume(void *priv, char *line, unsigned long len)
        else {
                int nparents = ecbdata->nparents;
                int color = DIFF_PLAIN;
-               for (i = 0; i < nparents && len; i++) {
-                       if (line[i] == '-')
-                               color = DIFF_FILE_OLD;
-                       else if (line[i] == '+')
-                               color = DIFF_FILE_NEW;
-               }
+               if (ecbdata->diff_words && nparents != 1)
+                       /* fall back to normal diff */
+                       free_diff_words_data(ecbdata);
+               if (ecbdata->diff_words) {
+                       if (line[0] == '-') {
+                               diff_words_append(line, len,
+                                               &ecbdata->diff_words->minus);
+                               return;
+                       } else if (line[0] == '+') {
+                               diff_words_append(line, len,
+                                               &ecbdata->diff_words->plus);
+                               return;
+                       }
+                       if (ecbdata->diff_words->minus.text.size ||
+                                       ecbdata->diff_words->plus.text.size)
+                               diff_words_show(ecbdata->diff_words);
+                       line++;
+                       len--;
+               } else
+                       for (i = 0; i < nparents && len; i++) {
+                               if (line[i] == '-')
+                                       color = DIFF_FILE_OLD;
+                               else if (line[i] == '+')
+                                       color = DIFF_FILE_NEW;
+                       }
                set = diff_get_color(ecbdata->color_diff, color);
        }
        if (len > 0 && line[len-1] == '\n')
@@ -745,9 +904,7 @@ static int mmfile_is_binary(mmfile_t *mf)
        long sz = mf->size;
        if (FIRST_FEW_BYTES < sz)
                sz = FIRST_FEW_BYTES;
-       if (memchr(mf->ptr, 0, sz))
-               return 1;
-       return 0;
+       return !!memchr(mf->ptr, 0, sz);
 }
 
 static void builtin_diff(const char *name_a,
@@ -836,7 +993,12 @@ static void builtin_diff(const char *name_a,
                ecb.outf = xdiff_outf;
                ecb.priv = &ecbdata;
                ecbdata.xm.consume = fn_out_consume;
+               if (o->color_diff_words)
+                       ecbdata.diff_words =
+                               xcalloc(1, sizeof(struct diff_words_data));
                xdl_diff(&mf1, &mf2, &xpp, &xecfg, &ecb);
+               if (o->color_diff_words)
+                       free_diff_words_data(&ecbdata);
        }
 
  free_ab_and_return:
@@ -940,7 +1102,7 @@ void fill_filespec(struct diff_filespec *spec, const unsigned char *sha1,
        if (mode) {
                spec->mode = canon_mode(mode);
                memcpy(spec->sha1, sha1, 20);
-               spec->sha1_valid = !!memcmp(sha1, null_sha1, 20);
+               spec->sha1_valid = !is_null_sha1(sha1);
        }
 }
 
@@ -1515,6 +1677,19 @@ void diff_setup(struct diff_options *options)
 
 int diff_setup_done(struct diff_options *options)
 {
+       int count = 0;
+
+       if (options->output_format & DIFF_FORMAT_NAME)
+               count++;
+       if (options->output_format & DIFF_FORMAT_NAME_STATUS)
+               count++;
+       if (options->output_format & DIFF_FORMAT_CHECKDIFF)
+               count++;
+       if (options->output_format & DIFF_FORMAT_NO_OUTPUT)
+               count++;
+       if (count > 1)
+               die("--name-only, --name-status, --check and -s are mutually exclusive");
+
        if (options->find_copies_harder)
                options->detect_rename = DIFF_DETECT_COPY;
 
@@ -1697,6 +1872,8 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
                options->xdl_opts |= XDF_IGNORE_WHITESPACE;
        else if (!strcmp(arg, "-b") || !strcmp(arg, "--ignore-space-change"))
                options->xdl_opts |= XDF_IGNORE_WHITESPACE_CHANGE;
+       else if (!strcmp(arg, "--color-words"))
+               options->color_diff = options->color_diff_words = 1;
        else if (!strcmp(arg, "--no-renames"))
                options->detect_rename = 0;
        else
diff --git a/diff.h b/diff.h
index 2cced530fa60ad7206b2cdb1b2509f42469e8f73..b007240a5dda9a9e1e54f22813c0d250b812fa3e 100644 (file)
--- a/diff.h
+++ b/diff.h
@@ -46,7 +46,8 @@ struct diff_options {
                 full_index:1,
                 silent_on_remove:1,
                 find_copies_harder:1,
-                color_diff:1;
+                color_diff:1,
+                color_diff_words:1;
        int context;
        int break_opt;
        int detect_rename;
index 87162b257254434be356b1a579967d51adff1e5f..e6bd0033b4666f52dc756b6e2b0d5a1745b0c6b9 100644 (file)
@@ -13,14 +13,14 @@ char git_default_email[MAX_GITNAME];
 char git_default_name[MAX_GITNAME];
 int use_legacy_headers = 1;
 int trust_executable_bit = 1;
-int assume_unchanged = 0;
-int prefer_symlink_refs = 0;
-int log_all_ref_updates = 0;
+int assume_unchanged;
+int prefer_symlink_refs;
+int log_all_ref_updates;
 int warn_ambiguous_refs = 1;
-int repository_format_version = 0;
+int repository_format_version;
 char git_commit_encoding[MAX_ENCODING_LENGTH] = "utf-8";
 int shared_repository = PERM_UMASK;
-const char *apply_default_whitespace = NULL;
+const char *apply_default_whitespace;
 int zlib_compression_level = Z_DEFAULT_COMPRESSION;
 int pager_in_use;
 int pager_use_color = 1;
index 62f51fcd6e367d2dc7e3dc8d967ee05fd1648d04..e30936d72cd48822b43ec7568d5fcafc76a7659e 100644 (file)
@@ -5,7 +5,7 @@
 
 extern char **environ;
 static const char *builtin_exec_path = GIT_EXEC_PATH;
-static const char *current_exec_path = NULL;
+static const char *current_exec_path;
 
 void git_set_exec_path(const char *exec_path)
 {
index 5e84c4620ff96f5c7ab93e5f3bfd10609edd5fd5..c5cf4776fabb8f9f09028dd1f0cfaf1d55e1397c 100644 (file)
@@ -44,9 +44,8 @@ static int finish_pack(const char *pack_tmp_name, const char *me)
 
        for (;;) {
                int status, code;
-               int retval = waitpid(pid, &status, 0);
 
-               if (retval < 0) {
+               if (waitpid(pid, &status, 0) < 0) {
                        if (errno == EINTR)
                                continue;
                        error("waitpid failed (%s)", strerror(errno));
index b7824dbed4e10d912a0977865e24e21ff9295aae..e18c1489a1ab8620cade351ec502828b10a41ac4 100644 (file)
@@ -24,8 +24,8 @@ static const char *exec = "git-upload-pack";
  */
 #define MAX_IN_VAIN 256
 
-static struct commit_list *rev_list = NULL;
-static int non_common_revs = 0, multi_ack = 0, use_thin_pack = 0, use_sideband;
+static struct commit_list *rev_list;
+static int non_common_revs, multi_ack, use_thin_pack, use_sideband;
 
 static void rev_list_push(struct commit *commit, int mark)
 {
@@ -250,7 +250,7 @@ static int find_common(int fd[2], unsigned char *result_sha1,
        return retval;
 }
 
-static struct commit_list *complete = NULL;
+static struct commit_list *complete;
 
 static int mark_complete(const char *path, const unsigned char *sha1)
 {
index e167f4105ffcf50f0ebfe03378b687569b6a668e..31e00d84b30f95c713b3dc6a654b4ef8459c6729 100644 (file)
 #define REACHABLE 0x0001
 #define SEEN      0x0002
 
-static int show_root = 0;
-static int show_tags = 0;
-static int show_unreachable = 0;
-static int check_full = 0;
-static int check_strict = 0;
-static int keep_cache_objects = 0;
+static int show_root;
+static int show_tags;
+static int show_unreachable;
+static int check_full;
+static int check_strict;
+static int keep_cache_objects;
 static unsigned char head_sha1[20];
 
 #ifdef NO_D_INO_IN_DIRENT
@@ -366,13 +366,13 @@ static void add_sha1_list(unsigned char *sha1, unsigned long ino)
        sha1_list.nr = ++nr;
 }
 
-static int fsck_dir(int i, char *path)
+static void fsck_dir(int i, char *path)
 {
        DIR *dir = opendir(path);
        struct dirent *de;
 
        if (!dir)
-               return 0;
+               return;
 
        while ((de = readdir(dir)) != NULL) {
                char name[100];
@@ -398,10 +398,9 @@ static int fsck_dir(int i, char *path)
                fprintf(stderr, "bad sha1 file: %s/%s\n", path, de->d_name);
        }
        closedir(dir);
-       return 0;
 }
 
-static int default_refs = 0;
+static int default_refs;
 
 static int fsck_handle_ref(const char *refname, const unsigned char *sha1)
 {
@@ -453,7 +452,7 @@ static int fsck_head_link(void)
        if (strncmp(git_refs_heads_master + pfxlen, "refs/heads/", 11))
                return error("HEAD points to something strange (%s)",
                             git_refs_heads_master + pfxlen);
-       if (!memcmp(null_sha1, sha1, 20))
+       if (is_null_sha1(sha1))
                return error("HEAD: not a valid git pointer");
        return 0;
 }
diff --git a/git.c b/git.c
index 18ba14ade1bb60b59fd0288130ba098e9e76dac3..930998bbe542cbaa92b3f16a6b0dc0d6ad43b874 100644 (file)
--- a/git.c
+++ b/git.c
@@ -92,7 +92,7 @@ static int handle_options(const char*** argv, int* argc)
 }
 
 static const char *alias_command;
-static char *alias_string = NULL;
+static char *alias_string;
 
 static int git_alias_config(const char *var, const char *value)
 {
@@ -213,8 +213,8 @@ static int handle_alias(int *argcp, const char ***argv)
 
 const char git_version_string[] = GIT_VERSION;
 
-#define NEEDS_PREFIX 1
-#define USE_PAGER 2
+#define RUN_SETUP      (1<<0)
+#define USE_PAGER      (1<<1)
 
 static void handle_internal_command(int argc, const char **argv, char **envp)
 {
@@ -224,47 +224,53 @@ static void handle_internal_command(int argc, const char **argv, char **envp)
                int (*fn)(int, const char **, const char *);
                int option;
        } commands[] = {
-               { "version", cmd_version },
-               { "help", cmd_help },
-               { "log", cmd_log, NEEDS_PREFIX | USE_PAGER },
-               { "whatchanged", cmd_whatchanged, NEEDS_PREFIX | USE_PAGER },
-               { "show", cmd_show, NEEDS_PREFIX | USE_PAGER },
-               { "push", cmd_push, NEEDS_PREFIX },
-               { "format-patch", cmd_format_patch, NEEDS_PREFIX },
+               { "add", cmd_add, RUN_SETUP },
+               { "apply", cmd_apply },
+               { "cat-file", cmd_cat_file, RUN_SETUP },
+               { "checkout-index", cmd_checkout_index, RUN_SETUP },
+               { "check-ref-format", cmd_check_ref_format },
+               { "commit-tree", cmd_commit_tree, RUN_SETUP },
                { "count-objects", cmd_count_objects },
-               { "diff", cmd_diff, NEEDS_PREFIX },
-               { "grep", cmd_grep, NEEDS_PREFIX },
-               { "rm", cmd_rm, NEEDS_PREFIX },
-               { "add", cmd_add, NEEDS_PREFIX },
-               { "rev-list", cmd_rev_list, NEEDS_PREFIX },
-               { "init-db", cmd_init_db },
+               { "diff", cmd_diff, RUN_SETUP },
+               { "diff-files", cmd_diff_files, RUN_SETUP },
+               { "diff-index", cmd_diff_index, RUN_SETUP },
+               { "diff-stages", cmd_diff_stages, RUN_SETUP },
+               { "diff-tree", cmd_diff_tree, RUN_SETUP },
+               { "fmt-merge-msg", cmd_fmt_merge_msg, RUN_SETUP },
+               { "format-patch", cmd_format_patch, RUN_SETUP },
                { "get-tar-commit-id", cmd_get_tar_commit_id },
-               { "upload-tar", cmd_upload_tar },
-               { "check-ref-format", cmd_check_ref_format },
-               { "ls-files", cmd_ls_files, NEEDS_PREFIX },
-               { "ls-tree", cmd_ls_tree, NEEDS_PREFIX },
-               { "tar-tree", cmd_tar_tree, NEEDS_PREFIX },
-               { "read-tree", cmd_read_tree, NEEDS_PREFIX },
-               { "commit-tree", cmd_commit_tree, NEEDS_PREFIX },
-               { "apply", cmd_apply },
-               { "show-branch", cmd_show_branch, NEEDS_PREFIX },
-               { "diff-files", cmd_diff_files, NEEDS_PREFIX },
-               { "diff-index", cmd_diff_index, NEEDS_PREFIX },
-               { "diff-stages", cmd_diff_stages, NEEDS_PREFIX },
-               { "diff-tree", cmd_diff_tree, NEEDS_PREFIX },
-               { "cat-file", cmd_cat_file, NEEDS_PREFIX },
-               { "rev-parse", cmd_rev_parse, NEEDS_PREFIX },
-               { "write-tree", cmd_write_tree, NEEDS_PREFIX },
-               { "mailsplit", cmd_mailsplit },
+               { "grep", cmd_grep, RUN_SETUP },
+               { "help", cmd_help },
+               { "init-db", cmd_init_db },
+               { "log", cmd_log, RUN_SETUP | USE_PAGER },
+               { "ls-files", cmd_ls_files, RUN_SETUP },
+               { "ls-tree", cmd_ls_tree, RUN_SETUP },
                { "mailinfo", cmd_mailinfo },
-               { "stripspace", cmd_stripspace },
-               { "update-index", cmd_update_index, NEEDS_PREFIX },
-               { "update-ref", cmd_update_ref, NEEDS_PREFIX },
-               { "fmt-merge-msg", cmd_fmt_merge_msg, NEEDS_PREFIX },
-               { "prune", cmd_prune, NEEDS_PREFIX },
-               { "mv", cmd_mv, NEEDS_PREFIX },
-               { "prune-packed", cmd_prune_packed, NEEDS_PREFIX },
+               { "mailsplit", cmd_mailsplit },
+               { "mv", cmd_mv, RUN_SETUP },
+               { "name-rev", cmd_name_rev, RUN_SETUP },
+               { "pack-objects", cmd_pack_objects, RUN_SETUP },
+               { "prune", cmd_prune, RUN_SETUP },
+               { "prune-packed", cmd_prune_packed, RUN_SETUP },
+               { "push", cmd_push, RUN_SETUP },
+               { "read-tree", cmd_read_tree, RUN_SETUP },
                { "repo-config", cmd_repo_config },
+               { "rev-list", cmd_rev_list, RUN_SETUP },
+               { "rev-parse", cmd_rev_parse, RUN_SETUP },
+               { "rm", cmd_rm, RUN_SETUP },
+               { "show-branch", cmd_show_branch, RUN_SETUP },
+               { "show", cmd_show, RUN_SETUP | USE_PAGER },
+               { "stripspace", cmd_stripspace },
+               { "symbolic-ref", cmd_symbolic_ref, RUN_SETUP },
+               { "tar-tree", cmd_tar_tree, RUN_SETUP },
+               { "unpack-objects", cmd_unpack_objects, RUN_SETUP },
+               { "update-index", cmd_update_index, RUN_SETUP },
+               { "update-ref", cmd_update_ref, RUN_SETUP },
+               { "upload-tar", cmd_upload_tar },
+               { "version", cmd_version },
+               { "whatchanged", cmd_whatchanged, RUN_SETUP | USE_PAGER },
+               { "write-tree", cmd_write_tree, RUN_SETUP },
+               { "verify-pack", cmd_verify_pack },
        };
        int i;
 
@@ -281,7 +287,7 @@ static void handle_internal_command(int argc, const char **argv, char **envp)
                        continue;
 
                prefix = NULL;
-               if (p->option & NEEDS_PREFIX)
+               if (p->option & RUN_SETUP)
                        prefix = setup_git_directory();
                if (p->option & USE_PAGER)
                        setup_pager();
index 8d672762eab427f3b732626d6b3f8e05a7e8f8c9..27c6dac1436ca9def413430336f3f29d88247fcb 100644 (file)
@@ -5,5 +5,33 @@ The one working on:
 
 From the git version 1.4.0 gitweb is bundled with git.
 
-Any comment/question/concern to:
+
+How to configure gitweb for your local system:
+
+You can specify the following configuration variables when building GIT:
+ * GITWEB_SITENAME
+   Shown in the title of all generated pages, defaults to the servers name.
+ * GITWEB_PROJECTROOT
+   The root directory for all projects shown by gitweb.
+ * GITWEB_LIST
+   points to a directory to scan for projects (defaults to project root)
+   or to a file for explicit listing of projects.
+ * GITWEB_HOMETEXT
+   points to an .html file which is included on the gitweb project
+   overview page.
+ * GITWEB_CSS
+   Points to the location where you put gitweb.css on your web server.
+ * GITWEB_LOGO
+   Points to the location where you put git-logo.png on your web server.
+ * GITWEB_CONFIG
+   This file will be loaded using 'require'.  If the environment
+   $GITWEB_CONFIG is set when gitweb.cgi is executed the file in the
+   environment variable will be loaded instead of the file
+   specified when gitweb.cgi was created.
+
+Originally written by:
   Kay Sievers <kay.sievers@vrfy.org>
+
+Any comment/question/concern to:
+  Git mailing list <git@vger.kernel.org>
+
diff --git a/gitweb/git-logo.png b/gitweb/git-logo.png
new file mode 100644 (file)
index 0000000..16ae8d5
Binary files /dev/null and b/gitweb/git-logo.png differ
diff --git a/gitweb/gitweb.cgi b/gitweb/gitweb.cgi
deleted file mode 100755 (executable)
index e5fca63..0000000
+++ /dev/null
@@ -1,2696 +0,0 @@
-#!/usr/bin/perl
-
-# gitweb - simple web interface to track changes in git repositories
-#
-# (C) 2005-2006, Kay Sievers <kay.sievers@vrfy.org>
-# (C) 2005, Christian Gierke
-#
-# This program is licensed under the GPLv2
-
-use strict;
-use warnings;
-use CGI qw(:standard :escapeHTML -nosticky);
-use CGI::Util qw(unescape);
-use CGI::Carp qw(fatalsToBrowser);
-use Encode;
-use Fcntl ':mode';
-binmode STDOUT, ':utf8';
-
-our $cgi = new CGI;
-our $version = "267";
-our $my_url = $cgi->url();
-our $my_uri = $cgi->url(-absolute => 1);
-our $rss_link = "";
-
-# core git executable to use
-# this can just be "git" if your webserver has a sensible PATH
-our $GIT = "/usr/bin/git";
-
-# absolute fs-path which will be prepended to the project path
-#our $projectroot = "/pub/scm";
-our $projectroot = "/home/kay/public_html/pub/scm";
-
-# version of the core git binary
-our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
-
-# location for temporary files needed for diffs
-our $git_temp = "/tmp/gitweb";
-if (! -d $git_temp) {
-    mkdir($git_temp, 0700) || die_error("Couldn't mkdir $git_temp");
-}
-
-# target of the home link on top of all pages
-our $home_link = $my_uri;
-
-# name of your site or organization to appear in page titles
-# replace this with something more descriptive for clearer bookmarks
-our $site_name = $ENV{'SERVER_NAME'} || "Untitled";
-
-# html text to include at home page
-our $home_text = "indextext.html";
-
-# URI of default stylesheet
-our $stylesheet = "gitweb.css";
-
-# source of projects list
-#our $projects_list = $projectroot;
-our $projects_list = "index/index.aux";
-
-# default blob_plain mimetype and default charset for text/plain blob
-our $default_blob_plain_mimetype = 'text/plain';
-our $default_text_plain_charset  = undef;
-
-# file to use for guessing MIME types before trying /etc/mime.types
-# (relative to the current git repository)
-our $mimetypes_file = undef;
-
-# input validation and dispatch
-our $action = $cgi->param('a');
-if (defined $action) {
-       if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
-               undef $action;
-               die_error(undef, "Invalid action parameter.");
-       }
-       if ($action eq "git-logo.png") {
-               git_logo();
-               exit;
-       } elsif ($action eq "opml") {
-               git_opml();
-               exit;
-       }
-}
-
-our $order = $cgi->param('o');
-if (defined $order) {
-       if ($order =~ m/[^0-9a-zA-Z_]/) {
-               undef $order;
-               die_error(undef, "Invalid order parameter.");
-       }
-}
-
-our $project = ($cgi->param('p') || $ENV{'PATH_INFO'});
-if (defined $project) {
-       $project =~ s|^/||; $project =~ s|/$||;
-       $project = validate_input($project);
-       if (!defined($project)) {
-               die_error(undef, "Invalid project parameter.");
-       }
-       if (!(-d "$projectroot/$project")) {
-               undef $project;
-               die_error(undef, "No such directory.");
-       }
-       if (!(-e "$projectroot/$project/HEAD")) {
-               undef $project;
-               die_error(undef, "No such project.");
-       }
-       $rss_link = "<link rel=\"alternate\" title=\"" . esc_param($project) . " log\" href=\"" .
-                   "$my_uri?" . esc_param("p=$project;a=rss") . "\" type=\"application/rss+xml\"/>";
-       $ENV{'GIT_DIR'} = "$projectroot/$project";
-} else {
-       git_project_list();
-       exit;
-}
-
-our $file_name = $cgi->param('f');
-if (defined $file_name) {
-       $file_name = validate_input($file_name);
-       if (!defined($file_name)) {
-               die_error(undef, "Invalid file parameter.");
-       }
-}
-
-our $hash = $cgi->param('h');
-if (defined $hash) {
-       $hash = validate_input($hash);
-       if (!defined($hash)) {
-               die_error(undef, "Invalid hash parameter.");
-       }
-}
-
-our $hash_parent = $cgi->param('hp');
-if (defined $hash_parent) {
-       $hash_parent = validate_input($hash_parent);
-       if (!defined($hash_parent)) {
-               die_error(undef, "Invalid hash parent parameter.");
-       }
-}
-
-our $hash_base = $cgi->param('hb');
-if (defined $hash_base) {
-       $hash_base = validate_input($hash_base);
-       if (!defined($hash_base)) {
-               die_error(undef, "Invalid hash base parameter.");
-       }
-}
-
-our $page = $cgi->param('pg');
-if (defined $page) {
-       if ($page =~ m/[^0-9]$/) {
-               undef $page;
-               die_error(undef, "Invalid page parameter.");
-       }
-}
-
-our $searchtext = $cgi->param('s');
-if (defined $searchtext) {
-       if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) {
-               undef $searchtext;
-               die_error(undef, "Invalid search parameter.");
-       }
-       $searchtext = quotemeta $searchtext;
-}
-
-sub validate_input {
-       my $input = shift;
-
-       if ($input =~ m/^[0-9a-fA-F]{40}$/) {
-               return $input;
-       }
-       if ($input =~ m/(^|\/)(|\.|\.\.)($|\/)/) {
-               return undef;
-       }
-       if ($input =~ m/[^a-zA-Z0-9_\x80-\xff\ \t\.\/\-\+\#\~\%]/) {
-               return undef;
-       }
-       return $input;
-}
-
-if (!defined $action || $action eq "summary") {
-       git_summary();
-       exit;
-} elsif ($action eq "heads") {
-       git_heads();
-       exit;
-} elsif ($action eq "tags") {
-       git_tags();
-       exit;
-} elsif ($action eq "blob") {
-       git_blob();
-       exit;
-} elsif ($action eq "blob_plain") {
-       git_blob_plain();
-       exit;
-} elsif ($action eq "tree") {
-       git_tree();
-       exit;
-} elsif ($action eq "rss") {
-       git_rss();
-       exit;
-} elsif ($action eq "commit") {
-       git_commit();
-       exit;
-} elsif ($action eq "log") {
-       git_log();
-       exit;
-} elsif ($action eq "blobdiff") {
-       git_blobdiff();
-       exit;
-} elsif ($action eq "blobdiff_plain") {
-       git_blobdiff_plain();
-       exit;
-} elsif ($action eq "commitdiff") {
-       git_commitdiff();
-       exit;
-} elsif ($action eq "commitdiff_plain") {
-       git_commitdiff_plain();
-       exit;
-} elsif ($action eq "history") {
-       git_history();
-       exit;
-} elsif ($action eq "search") {
-       git_search();
-       exit;
-} elsif ($action eq "shortlog") {
-       git_shortlog();
-       exit;
-} elsif ($action eq "tag") {
-       git_tag();
-       exit;
-} elsif ($action eq "blame") {
-       git_blame2();
-       exit;
-} else {
-       undef $action;
-       die_error(undef, "Unknown action.");
-       exit;
-}
-
-# quote unsafe chars, but keep the slash, even when it's not
-# correct, but quoted slashes look too horrible in bookmarks
-sub esc_param {
-       my $str = shift;
-       $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
-       $str =~ s/\+/%2B/g;
-       $str =~ s/ /\+/g;
-       return $str;
-}
-
-# replace invalid utf8 character with SUBSTITUTION sequence
-sub esc_html {
-       my $str = shift;
-       $str = decode("utf8", $str, Encode::FB_DEFAULT);
-       $str = escapeHTML($str);
-       return $str;
-}
-
-# git may return quoted and escaped filenames
-sub unquote {
-       my $str = shift;
-       if ($str =~ m/^"(.*)"$/) {
-               $str = $1;
-               $str =~ s/\\([0-7]{1,3})/chr(oct($1))/eg;
-       }
-       return $str;
-}
-
-# CSS class for given age value (in seconds)
-sub age_class {
-       my $age = shift;
-
-       if ($age < 60*60*2) {
-               return "age0";
-       } elsif ($age < 60*60*24*2) {
-               return "age1";
-       } else {
-               return "age2";
-       }
-}
-
-sub git_header_html {
-       my $status = shift || "200 OK";
-       my $expires = shift;
-
-       my $title = "$site_name git";
-       if (defined $project) {
-               $title .= " - $project";
-               if (defined $action) {
-                       $title .= "/$action";
-                       if (defined $file_name) {
-                               $title .= " - $file_name";
-                               if ($action eq "tree" && $file_name !~ m|/$|) {
-                                       $title .= "/";
-                               }
-                       }
-               }
-       }
-       my $content_type;
-       # require explicit support from the UA if we are to send the page as
-       # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
-       # we have to do this because MSIE sometimes globs '*/*', pretending to
-       # support xhtml+xml but choking when it gets what it asked for.
-       if ($cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ && $cgi->Accept('application/xhtml+xml') != 0) {
-               $content_type = 'application/xhtml+xml';
-       } else {
-               $content_type = 'text/html';
-       }
-       print $cgi->header(-type=>$content_type,  -charset => 'utf-8', -status=> $status, -expires => $expires);
-       print <<EOF;
-<?xml version="1.0" encoding="utf-8"?>
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
-<!-- git web interface v$version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
-<!-- git core binaries version $git_version -->
-<head>
-<meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
-<meta name="robots" content="index, nofollow"/>
-<title>$title</title>
-<link rel="stylesheet" type="text/css" href="$stylesheet"/>
-$rss_link
-</head>
-<body>
-EOF
-       print "<div class=\"page_header\">\n" .
-             "<a href=\"http://www.kernel.org/pub/software/scm/git/docs/\" title=\"git documentation\">" .
-             "<img src=\"$my_uri?" . esc_param("a=git-logo.png") . "\" width=\"72\" height=\"27\" alt=\"git\" style=\"float:right; border-width:0px;\"/>" .
-             "</a>\n";
-       print $cgi->a({-href => esc_param($home_link)}, "projects") . " / ";
-       if (defined $project) {
-               print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, esc_html($project));
-               if (defined $action) {
-                       print " / $action";
-               }
-               print "\n";
-               if (!defined $searchtext) {
-                       $searchtext = "";
-               }
-               my $search_hash;
-               if (defined $hash_base) {
-                       $search_hash = $hash_base;
-               } elsif (defined $hash) {
-                       $search_hash = $hash;
-               } else {
-                       $search_hash = "HEAD";
-               }
-               $cgi->param("a", "search");
-               $cgi->param("h", $search_hash);
-               print $cgi->startform(-method => "get", -action => $my_uri) .
-                     "<div class=\"search\">\n" .
-                     $cgi->hidden(-name => "p") . "\n" .
-                     $cgi->hidden(-name => "a") . "\n" .
-                     $cgi->hidden(-name => "h") . "\n" .
-                     $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
-                     "</div>" .
-                     $cgi->end_form() . "\n";
-       }
-       print "</div>\n";
-}
-
-sub git_footer_html {
-       print "<div class=\"page_footer\">\n";
-       if (defined $project) {
-               my $descr = git_read_description($project);
-               if (defined $descr) {
-                       print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
-               }
-               print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=rss"), -class => "rss_logo"}, "RSS") . "\n";
-       } else {
-               print $cgi->a({-href => "$my_uri?" . esc_param("a=opml"), -class => "rss_logo"}, "OPML") . "\n";
-       }
-       print "</div>\n" .
-             "</body>\n" .
-             "</html>";
-}
-
-sub die_error {
-       my $status = shift || "403 Forbidden";
-       my $error = shift || "Malformed query, file missing or permission denied";
-
-       git_header_html($status);
-       print "<div class=\"page_body\">\n" .
-             "<br/><br/>\n" .
-             "$status - $error\n" .
-             "<br/>\n" .
-             "</div>\n";
-       git_footer_html();
-       exit;
-}
-
-sub git_get_type {
-       my $hash = shift;
-
-       open my $fd, "-|", "$GIT cat-file -t $hash" or return;
-       my $type = <$fd>;
-       close $fd or return;
-       chomp $type;
-       return $type;
-}
-
-sub git_read_head {
-       my $project = shift;
-       my $oENV = $ENV{'GIT_DIR'};
-       my $retval = undef;
-       $ENV{'GIT_DIR'} = "$projectroot/$project";
-       if (open my $fd, "-|", $GIT, "rev-parse", "--verify", "HEAD") {
-               my $head = <$fd>;
-               close $fd;
-               if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
-                       $retval = $1;
-               }
-       }
-       if (defined $oENV) {
-               $ENV{'GIT_DIR'} = $oENV;
-       }
-       return $retval;
-}
-
-sub git_read_hash {
-       my $path = shift;
-
-       open my $fd, "$projectroot/$path" or return undef;
-       my $head = <$fd>;
-       close $fd;
-       chomp $head;
-       if ($head =~ m/^[0-9a-fA-F]{40}$/) {
-               return $head;
-       }
-}
-
-sub git_read_description {
-       my $path = shift;
-
-       open my $fd, "$projectroot/$path/description" or return undef;
-       my $descr = <$fd>;
-       close $fd;
-       chomp $descr;
-       return $descr;
-}
-
-sub git_read_tag {
-       my $tag_id = shift;
-       my %tag;
-       my @comment;
-
-       open my $fd, "-|", "$GIT cat-file tag $tag_id" or return;
-       $tag{'id'} = $tag_id;
-       while (my $line = <$fd>) {
-               chomp $line;
-               if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
-                       $tag{'object'} = $1;
-               } elsif ($line =~ m/^type (.+)$/) {
-                       $tag{'type'} = $1;
-               } elsif ($line =~ m/^tag (.+)$/) {
-                       $tag{'name'} = $1;
-               } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
-                       $tag{'author'} = $1;
-                       $tag{'epoch'} = $2;
-                       $tag{'tz'} = $3;
-               } elsif ($line =~ m/--BEGIN/) {
-                       push @comment, $line;
-                       last;
-               } elsif ($line eq "") {
-                       last;
-               }
-       }
-       push @comment, <$fd>;
-       $tag{'comment'} = \@comment;
-       close $fd or return;
-       if (!defined $tag{'name'}) {
-               return
-       };
-       return %tag
-}
-
-sub age_string {
-       my $age = shift;
-       my $age_str;
-
-       if ($age > 60*60*24*365*2) {
-               $age_str = (int $age/60/60/24/365);
-               $age_str .= " years ago";
-       } elsif ($age > 60*60*24*(365/12)*2) {
-               $age_str = int $age/60/60/24/(365/12);
-               $age_str .= " months ago";
-       } elsif ($age > 60*60*24*7*2) {
-               $age_str = int $age/60/60/24/7;
-               $age_str .= " weeks ago";
-       } elsif ($age > 60*60*24*2) {
-               $age_str = int $age/60/60/24;
-               $age_str .= " days ago";
-       } elsif ($age > 60*60*2) {
-               $age_str = int $age/60/60;
-               $age_str .= " hours ago";
-       } elsif ($age > 60*2) {
-               $age_str = int $age/60;
-               $age_str .= " min ago";
-       } elsif ($age > 2) {
-               $age_str = int $age;
-               $age_str .= " sec ago";
-       } else {
-               $age_str .= " right now";
-       }
-       return $age_str;
-}
-
-sub git_read_commit {
-       my $commit_id = shift;
-       my $commit_text = shift;
-
-       my @commit_lines;
-       my %co;
-
-       if (defined $commit_text) {
-               @commit_lines = @$commit_text;
-       } else {
-               $/ = "\0";
-               open my $fd, "-|", "$GIT rev-list --header --parents --max-count=1 $commit_id" or return;
-               @commit_lines = split '\n', <$fd>;
-               close $fd or return;
-               $/ = "\n";
-               pop @commit_lines;
-       }
-       my $header = shift @commit_lines;
-       if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
-               return;
-       }
-       ($co{'id'}, my @parents) = split ' ', $header;
-       $co{'parents'} = \@parents;
-       $co{'parent'} = $parents[0];
-       while (my $line = shift @commit_lines) {
-               last if $line eq "\n";
-               if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
-                       $co{'tree'} = $1;
-               } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
-                       $co{'author'} = $1;
-                       $co{'author_epoch'} = $2;
-                       $co{'author_tz'} = $3;
-                       if ($co{'author'} =~ m/^([^<]+) </) {
-                               $co{'author_name'} = $1;
-                       } else {
-                               $co{'author_name'} = $co{'author'};
-                       }
-               } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
-                       $co{'committer'} = $1;
-                       $co{'committer_epoch'} = $2;
-                       $co{'committer_tz'} = $3;
-                       $co{'committer_name'} = $co{'committer'};
-                       $co{'committer_name'} =~ s/ <.*//;
-               }
-       }
-       if (!defined $co{'tree'}) {
-               return;
-       };
-
-       foreach my $title (@commit_lines) {
-               $title =~ s/^    //;
-               if ($title ne "") {
-                       $co{'title'} = chop_str($title, 80, 5);
-                       # remove leading stuff of merges to make the interesting part visible
-                       if (length($title) > 50) {
-                               $title =~ s/^Automatic //;
-                               $title =~ s/^merge (of|with) /Merge ... /i;
-                               if (length($title) > 50) {
-                                       $title =~ s/(http|rsync):\/\///;
-                               }
-                               if (length($title) > 50) {
-                                       $title =~ s/(master|www|rsync)\.//;
-                               }
-                               if (length($title) > 50) {
-                                       $title =~ s/kernel.org:?//;
-                               }
-                               if (length($title) > 50) {
-                                       $title =~ s/\/pub\/scm//;
-                               }
-                       }
-                       $co{'title_short'} = chop_str($title, 50, 5);
-                       last;
-               }
-       }
-       # remove added spaces
-       foreach my $line (@commit_lines) {
-               $line =~ s/^    //;
-       }
-       $co{'comment'} = \@commit_lines;
-
-       my $age = time - $co{'committer_epoch'};
-       $co{'age'} = $age;
-       $co{'age_string'} = age_string($age);
-       my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
-       if ($age > 60*60*24*7*2) {
-               $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
-               $co{'age_string_age'} = $co{'age_string'};
-       } else {
-               $co{'age_string_date'} = $co{'age_string'};
-               $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
-       }
-       return %co;
-}
-
-sub git_diff_print {
-       my $from = shift;
-       my $from_name = shift;
-       my $to = shift;
-       my $to_name = shift;
-       my $format = shift || "html";
-
-       my $from_tmp = "/dev/null";
-       my $to_tmp = "/dev/null";
-       my $pid = $$;
-
-       # create tmp from-file
-       if (defined $from) {
-               $from_tmp = "$git_temp/gitweb_" . $$ . "_from";
-               open my $fd2, "> $from_tmp";
-               open my $fd, "-|", "$GIT cat-file blob $from";
-               my @file = <$fd>;
-               print $fd2 @file;
-               close $fd2;
-               close $fd;
-       }
-
-       # create tmp to-file
-       if (defined $to) {
-               $to_tmp = "$git_temp/gitweb_" . $$ . "_to";
-               open my $fd2, "> $to_tmp";
-               open my $fd, "-|", "$GIT cat-file blob $to";
-               my @file = <$fd>;
-               print $fd2 @file;
-               close $fd2;
-               close $fd;
-       }
-
-       open my $fd, "-|", "/usr/bin/diff -u -p -L \'$from_name\' -L \'$to_name\' $from_tmp $to_tmp";
-       if ($format eq "plain") {
-               undef $/;
-               print <$fd>;
-               $/ = "\n";
-       } else {
-               while (my $line = <$fd>) {
-                       chomp($line);
-                       my $char = substr($line, 0, 1);
-                       my $diff_class = "";
-                       if ($char eq '+') {
-                               $diff_class = " add";
-                       } elsif ($char eq "-") {
-                               $diff_class = " rem";
-                       } elsif ($char eq "@") {
-                               $diff_class = " chunk_header";
-                       } elsif ($char eq "\\") {
-                               # skip errors
-                               next;
-                       }
-                       while ((my $pos = index($line, "\t")) != -1) {
-                               if (my $count = (8 - (($pos-1) % 8))) {
-                                       my $spaces = ' ' x $count;
-                                       $line =~ s/\t/$spaces/;
-                               }
-                       }
-                       print "<div class=\"diff$diff_class\">" . esc_html($line) . "</div>\n";
-               }
-       }
-       close $fd;
-
-       if (defined $from) {
-               unlink($from_tmp);
-       }
-       if (defined $to) {
-               unlink($to_tmp);
-       }
-}
-
-sub mode_str {
-       my $mode = oct shift;
-
-       if (S_ISDIR($mode & S_IFMT)) {
-               return 'drwxr-xr-x';
-       } elsif (S_ISLNK($mode)) {
-               return 'lrwxrwxrwx';
-       } elsif (S_ISREG($mode)) {
-               # git cares only about the executable bit
-               if ($mode & S_IXUSR) {
-                       return '-rwxr-xr-x';
-               } else {
-                       return '-rw-r--r--';
-               };
-       } else {
-               return '----------';
-       }
-}
-
-sub chop_str {
-       my $str = shift;
-       my $len = shift;
-       my $add_len = shift || 10;
-
-       # allow only $len chars, but don't cut a word if it would fit in $add_len
-       # if it doesn't fit, cut it if it's still longer than the dots we would add
-       $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
-       my $body = $1;
-       my $tail = $2;
-       if (length($tail) > 4) {
-               $tail = " ...";
-       }
-       return "$body$tail";
-}
-
-sub file_type {
-       my $mode = oct shift;
-
-       if (S_ISDIR($mode & S_IFMT)) {
-               return "directory";
-       } elsif (S_ISLNK($mode)) {
-               return "symlink";
-       } elsif (S_ISREG($mode)) {
-               return "file";
-       } else {
-               return "unknown";
-       }
-}
-
-sub format_log_line_html {
-       my $line = shift;
-
-       $line = esc_html($line);
-       $line =~ s/ /&nbsp;/g;
-       if ($line =~ m/([0-9a-fA-F]{40})/) {
-               my $hash_text = $1;
-               if (git_get_type($hash_text) eq "commit") {
-                       my $link = $cgi->a({-class => "text", -href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_text")}, $hash_text);
-                       $line =~ s/$hash_text/$link/;
-               }
-       }
-       return $line;
-}
-
-sub date_str {
-       my $epoch = shift;
-       my $tz = shift || "-0000";
-
-       my %date;
-       my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
-       my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
-       my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
-       $date{'hour'} = $hour;
-       $date{'minute'} = $min;
-       $date{'mday'} = $mday;
-       $date{'day'} = $days[$wday];
-       $date{'month'} = $months[$mon];
-       $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000", $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
-       $date{'mday-time'} = sprintf "%d %s %02d:%02d", $mday, $months[$mon], $hour ,$min;
-
-       $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
-       my $local = $epoch + ((int $1 + ($2/60)) * 3600);
-       ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
-       $date{'hour_local'} = $hour;
-       $date{'minute_local'} = $min;
-       $date{'tz_local'} = $tz;
-       return %date;
-}
-
-# git-logo (cached in browser for one day)
-sub git_logo {
-       binmode STDOUT, ':raw';
-       print $cgi->header(-type => 'image/png', -expires => '+1d');
-       # cat git-logo.png | hexdump -e '16/1 " %02x"  "\n"' | sed 's/ /\\x/g'
-       print   "\x89\x50\x4e\x47\x0d\x0a\x1a\x0a\x00\x00\x00\x0d\x49\x48\x44\x52" .
-               "\x00\x00\x00\x48\x00\x00\x00\x1b\x04\x03\x00\x00\x00\x2d\xd9\xd4" .
-               "\x2d\x00\x00\x00\x18\x50\x4c\x54\x45\xff\xff\xff\x60\x60\x5d\xb0" .
-               "\xaf\xaa\x00\x80\x00\xce\xcd\xc7\xc0\x00\x00\xe8\xe8\xe6\xf7\xf7" .
-               "\xf6\x95\x0c\xa7\x47\x00\x00\x00\x73\x49\x44\x41\x54\x28\xcf\x63" .
-               "\x48\x67\x20\x04\x4a\x5c\x18\x0a\x08\x2a\x62\x53\x61\x20\x02\x08" .
-               "\x0d\x69\x45\xac\xa1\xa1\x01\x30\x0c\x93\x60\x36\x26\x52\x91\xb1" .
-               "\x01\x11\xd6\xe1\x55\x64\x6c\x6c\xcc\x6c\x6c\x0c\xa2\x0c\x70\x2a" .
-               "\x62\x06\x2a\xc1\x62\x1d\xb3\x01\x02\x53\xa4\x08\xe8\x00\x03\x18" .
-               "\x26\x56\x11\xd4\xe1\x20\x97\x1b\xe0\xb4\x0e\x35\x24\x71\x29\x82" .
-               "\x99\x30\xb8\x93\x0a\x11\xb9\x45\x88\xc1\x8d\xa0\xa2\x44\x21\x06" .
-               "\x27\x41\x82\x40\x85\xc1\x45\x89\x20\x70\x01\x00\xa4\x3d\x21\xc5" .
-               "\x12\x1c\x9a\xfe\x00\x00\x00\x00\x49\x45\x4e\x44\xae\x42\x60\x82";
-}
-
-sub get_file_owner {
-       my $path = shift;
-
-       my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
-       my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
-       if (!defined $gcos) {
-               return undef;
-       }
-       my $owner = $gcos;
-       $owner =~ s/[,;].*$//;
-       return decode("utf8", $owner, Encode::FB_DEFAULT);
-}
-
-sub git_read_projects {
-       my @list;
-
-       if (-d $projects_list) {
-               # search in directory
-               my $dir = $projects_list;
-               opendir my ($dh), $dir or return undef;
-               while (my $dir = readdir($dh)) {
-                       if (-e "$projectroot/$dir/HEAD") {
-                               my $pr = {
-                                       path => $dir,
-                               };
-                               push @list, $pr
-                       }
-               }
-               closedir($dh);
-       } elsif (-f $projects_list) {
-               # read from file(url-encoded):
-               # 'git%2Fgit.git Linus+Torvalds'
-               # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
-               # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
-               open my ($fd), $projects_list or return undef;
-               while (my $line = <$fd>) {
-                       chomp $line;
-                       my ($path, $owner) = split ' ', $line;
-                       $path = unescape($path);
-                       $owner = unescape($owner);
-                       if (!defined $path) {
-                               next;
-                       }
-                       if (-e "$projectroot/$path/HEAD") {
-                               my $pr = {
-                                       path => $path,
-                                       owner => decode("utf8", $owner, Encode::FB_DEFAULT),
-                               };
-                               push @list, $pr
-                       }
-               }
-               close $fd;
-       }
-       @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
-       return @list;
-}
-
-sub git_get_project_config {
-       my $key = shift;
-
-       return unless ($key);
-       $key =~ s/^gitweb\.//;
-       return if ($key =~ m/\W/);
-
-       my $val = qx($GIT repo-config --get gitweb.$key);
-       return ($val);
-}
-
-sub git_get_project_config_bool {
-       my $val = git_get_project_config (@_);
-       if ($val and $val =~ m/true|yes|on/) {
-               return (1);
-       }
-       return; # implicit false
-}
-
-sub git_project_list {
-       my @list = git_read_projects();
-       my @projects;
-       if (!@list) {
-               die_error(undef, "No project found.");
-       }
-       foreach my $pr (@list) {
-               my $head = git_read_head($pr->{'path'});
-               if (!defined $head) {
-                       next;
-               }
-               $ENV{'GIT_DIR'} = "$projectroot/$pr->{'path'}";
-               my %co = git_read_commit($head);
-               if (!%co) {
-                       next;
-               }
-               $pr->{'commit'} = \%co;
-               if (!defined $pr->{'descr'}) {
-                       my $descr = git_read_description($pr->{'path'}) || "";
-                       $pr->{'descr'} = chop_str($descr, 25, 5);
-               }
-               if (!defined $pr->{'owner'}) {
-                       $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
-               }
-               push @projects, $pr;
-       }
-       git_header_html();
-       if (-f $home_text) {
-               print "<div class=\"index_include\">\n";
-               open (my $fd, $home_text);
-               print <$fd>;
-               close $fd;
-               print "</div>\n";
-       }
-       print "<table class=\"project_list\">\n" .
-             "<tr>\n";
-       if (!defined($order) || (defined($order) && ($order eq "project"))) {
-               @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
-               print "<th>Project</th>\n";
-       } else {
-               print "<th>" . $cgi->a({-class => "header", -href => "$my_uri?" . esc_param("o=project")}, "Project") . "</th>\n";
-       }
-       if (defined($order) && ($order eq "descr")) {
-               @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
-               print "<th>Description</th>\n";
-       } else {
-               print "<th>" . $cgi->a({-class => "header", -href => "$my_uri?" . esc_param("o=descr")}, "Description") . "</th>\n";
-       }
-       if (defined($order) && ($order eq "owner")) {
-               @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
-               print "<th>Owner</th>\n";
-       } else {
-               print "<th>" . $cgi->a({-class => "header", -href => "$my_uri?" . esc_param("o=owner")}, "Owner") . "</th>\n";
-       }
-       if (defined($order) && ($order eq "age")) {
-               @projects = sort {$a->{'commit'}{'age'} <=> $b->{'commit'}{'age'}} @projects;
-               print "<th>Last Change</th>\n";
-       } else {
-               print "<th>" . $cgi->a({-class => "header", -href => "$my_uri?" . esc_param("o=age")}, "Last Change") . "</th>\n";
-       }
-       print "<th></th>\n" .
-             "</tr>\n";
-       my $alternate = 0;
-       foreach my $pr (@projects) {
-               if ($alternate) {
-                       print "<tr class=\"dark\">\n";
-               } else {
-                       print "<tr class=\"light\">\n";
-               }
-               $alternate ^= 1;
-               print "<td>" . $cgi->a({-href => "$my_uri?" . esc_param("p=$pr->{'path'};a=summary"), -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
-                     "<td>$pr->{'descr'}</td>\n" .
-                     "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
-               print "<td class=\"". age_class($pr->{'commit'}{'age'}) . "\">" . $pr->{'commit'}{'age_string'} . "</td>\n" .
-                     "<td class=\"link\">" .
-                     $cgi->a({-href => "$my_uri?" . esc_param("p=$pr->{'path'};a=summary")}, "summary") .
-                     " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$pr->{'path'};a=shortlog")}, "shortlog") .
-                     " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$pr->{'path'};a=log")}, "log") .
-                     "</td>\n" .
-                     "</tr>\n";
-       }
-       print "</table>\n";
-       git_footer_html();
-}
-
-sub read_info_ref {
-       my $type = shift || "";
-       my %refs;
-       # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c      refs/tags/v2.6.11
-       # c39ae07f393806ccf406ef966e9a15afc43cc36a      refs/tags/v2.6.11^{}
-       open my $fd, "$projectroot/$project/info/refs" or return;
-       while (my $line = <$fd>) {
-               chomp($line);
-               if ($line =~ m/^([0-9a-fA-F]{40})\t.*$type\/([^\^]+)/) {
-                       if (defined $refs{$1}) {
-                               $refs{$1} .= " / $2";
-                       } else {
-                               $refs{$1} = $2;
-                       }
-               }
-       }
-       close $fd or return;
-       return \%refs;
-}
-
-sub git_read_refs {
-       my $ref_dir = shift;
-       my @reflist;
-
-       my @refs;
-       opendir my $dh, "$projectroot/$project/$ref_dir";
-       while (my $dir = readdir($dh)) {
-               if ($dir =~ m/^\./) {
-                       next;
-               }
-               if (-d "$projectroot/$project/$ref_dir/$dir") {
-                       opendir my $dh2, "$projectroot/$project/$ref_dir/$dir";
-                       my @subdirs = grep !m/^\./, readdir $dh2;
-                       closedir($dh2);
-                       foreach my $subdir (@subdirs) {
-                               push @refs, "$dir/$subdir"
-                       }
-                       next;
-               }
-               push @refs, $dir;
-       }
-       closedir($dh);
-       foreach my $ref_file (@refs) {
-               my $ref_id = git_read_hash("$project/$ref_dir/$ref_file");
-               my $type = git_get_type($ref_id) || next;
-               my %ref_item;
-               my %co;
-               $ref_item{'type'} = $type;
-               $ref_item{'id'} = $ref_id;
-               $ref_item{'epoch'} = 0;
-               $ref_item{'age'} = "unknown";
-               if ($type eq "tag") {
-                       my %tag = git_read_tag($ref_id);
-                       $ref_item{'comment'} = $tag{'comment'};
-                       if ($tag{'type'} eq "commit") {
-                               %co = git_read_commit($tag{'object'});
-                               $ref_item{'epoch'} = $co{'committer_epoch'};
-                               $ref_item{'age'} = $co{'age_string'};
-                       } elsif (defined($tag{'epoch'})) {
-                               my $age = time - $tag{'epoch'};
-                               $ref_item{'epoch'} = $tag{'epoch'};
-                               $ref_item{'age'} = age_string($age);
-                       }
-                       $ref_item{'reftype'} = $tag{'type'};
-                       $ref_item{'name'} = $tag{'name'};
-                       $ref_item{'refid'} = $tag{'object'};
-               } elsif ($type eq "commit"){
-                       %co = git_read_commit($ref_id);
-                       $ref_item{'reftype'} = "commit";
-                       $ref_item{'name'} = $ref_file;
-                       $ref_item{'title'} = $co{'title'};
-                       $ref_item{'refid'} = $ref_id;
-                       $ref_item{'epoch'} = $co{'committer_epoch'};
-                       $ref_item{'age'} = $co{'age_string'};
-               }
-
-               push @reflist, \%ref_item;
-       }
-       # sort tags by age
-       @reflist = sort {$b->{'epoch'} <=> $a->{'epoch'}} @reflist;
-       return \@reflist;
-}
-
-sub git_summary {
-       my $descr = git_read_description($project) || "none";
-       my $head = git_read_head($project);
-       my %co = git_read_commit($head);
-       my %cd = date_str($co{'committer_epoch'}, $co{'committer_tz'});
-
-       my $owner;
-       if (-f $projects_list) {
-               open (my $fd , $projects_list);
-               while (my $line = <$fd>) {
-                       chomp $line;
-                       my ($pr, $ow) = split ' ', $line;
-                       $pr = unescape($pr);
-                       $ow = unescape($ow);
-                       if ($pr eq $project) {
-                               $owner = decode("utf8", $ow, Encode::FB_DEFAULT);
-                               last;
-                       }
-               }
-               close $fd;
-       }
-       if (!defined $owner) {
-               $owner = get_file_owner("$projectroot/$project");
-       }
-
-       my $refs = read_info_ref();
-       git_header_html();
-       print "<div class=\"page_nav\">\n" .
-             "summary".
-             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
-             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "log") .
-             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$head")}, "commit") .
-             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$head")}, "commitdiff") .
-             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree")}, "tree") .
-             "<br/><br/>\n" .
-             "</div>\n";
-       print "<div class=\"title\">&nbsp;</div>\n";
-       print "<table cellspacing=\"0\">\n" .
-             "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
-             "<tr><td>owner</td><td>$owner</td></tr>\n" .
-             "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n" .
-             "</table>\n";
-       open my $fd, "-|", "$GIT rev-list --max-count=17 " . git_read_head($project) or die_error(undef, "Open failed.");
-       my (@revlist) = map { chomp; $_ } <$fd>;
-       close $fd;
-       print "<div>\n" .
-             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog"), -class => "title"}, "shortlog") .
-             "</div>\n";
-       my $i = 16;
-       print "<table cellspacing=\"0\">\n";
-       my $alternate = 0;
-       foreach my $commit (@revlist) {
-               my %co = git_read_commit($commit);
-               my %ad = date_str($co{'author_epoch'});
-               if ($alternate) {
-                       print "<tr class=\"dark\">\n";
-               } else {
-                       print "<tr class=\"light\">\n";
-               }
-               $alternate ^= 1;
-               if ($i-- > 0) {
-                       my $ref = "";
-                       if (defined $refs->{$commit}) {
-                               $ref = " <span class=\"tag\">" . esc_html($refs->{$commit}) . "</span>";
-                       }
-                       print "<td><i>$co{'age_string'}</i></td>\n" .
-                             "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
-                             "<td>";
-                       if (length($co{'title_short'}) < length($co{'title'})) {
-                               print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit"), -class => "list", -title => "$co{'title'}"},
-                                     "<b>" . esc_html($co{'title_short'}) . "$ref</b>");
-                       } else {
-                               print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit"), -class => "list"},
-                                     "<b>" . esc_html($co{'title'}) . "$ref</b>");
-                       }
-                       print "</td>\n" .
-                             "<td class=\"link\">" .
-                             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit")}, "commit") .
-                             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$commit")}, "commitdiff") .
-                             "</td>\n" .
-                             "</tr>";
-               } else {
-                       print "<td>" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "...") . "</td>\n" .
-                       "</tr>";
-                       last;
-               }
-       }
-       print "</table\n>";
-
-       my $taglist = git_read_refs("refs/tags");
-       if (defined @$taglist) {
-               print "<div>\n" .
-                     $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tags"), -class => "title"}, "tags") .
-                     "</div>\n";
-               my $i = 16;
-               print "<table cellspacing=\"0\">\n";
-               my $alternate = 0;
-               foreach my $entry (@$taglist) {
-                       my %tag = %$entry;
-                       my $comment_lines = $tag{'comment'};
-                       my $comment = shift @$comment_lines;
-                       if (defined($comment)) {
-                               $comment = chop_str($comment, 30, 5);
-                       }
-                       if ($alternate) {
-                               print "<tr class=\"dark\">\n";
-                       } else {
-                               print "<tr class=\"light\">\n";
-                       }
-                       $alternate ^= 1;
-                       if ($i-- > 0) {
-                               print "<td><i>$tag{'age'}</i></td>\n" .
-                                     "<td>" .
-                                     $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$tag{'reftype'};h=$tag{'refid'}"), -class => "list"},
-                                     "<b>" . esc_html($tag{'name'}) . "</b>") .
-                                     "</td>\n" .
-                                     "<td>";
-                               if (defined($comment)) {
-                                     print $cgi->a({-class => "list", -href => "$my_uri?" . esc_param("p=$project;a=tag;h=$tag{'id'}")}, esc_html($comment));
-                               }
-                               print "</td>\n" .
-                                     "<td class=\"link\">";
-                               if ($tag{'type'} eq "tag") {
-                                     print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tag;h=$tag{'id'}")}, "tag") . " | ";
-                               }
-                               print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$tag{'reftype'};h=$tag{'refid'}")}, $tag{'reftype'});
-                               if ($tag{'reftype'} eq "commit") {
-                                     print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}")}, "shortlog") .
-                                           " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$tag{'refid'}")}, "log");
-                               }
-                               print "</td>\n" .
-                                     "</tr>";
-                       } else {
-                               print "<td>" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tags")}, "...") . "</td>\n" .
-                               "</tr>";
-                               last;
-                       }
-               }
-               print "</table\n>";
-       }
-
-       my $headlist = git_read_refs("refs/heads");
-       if (defined @$headlist) {
-               print "<div>\n" .
-                     $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=heads"), -class => "title"}, "heads") .
-                     "</div>\n";
-               my $i = 16;
-               print "<table cellspacing=\"0\">\n";
-               my $alternate = 0;
-               foreach my $entry (@$headlist) {
-                       my %tag = %$entry;
-                       if ($alternate) {
-                               print "<tr class=\"dark\">\n";
-                       } else {
-                               print "<tr class=\"light\">\n";
-                       }
-                       $alternate ^= 1;
-                       if ($i-- > 0) {
-                               print "<td><i>$tag{'age'}</i></td>\n" .
-                                     "<td>" .
-                                     $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}"), -class => "list"},
-                                     "<b>" . esc_html($tag{'name'}) . "</b>") .
-                                     "</td>\n" .
-                                     "<td class=\"link\">" .
-                                     $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}")}, "shortlog") .
-                                     " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$tag{'name'}")}, "log") .
-                                     "</td>\n" .
-                                     "</tr>";
-                       } else {
-                               print "<td>" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=heads")}, "...") . "</td>\n" .
-                               "</tr>";
-                               last;
-                       }
-               }
-               print "</table\n>";
-       }
-       git_footer_html();
-}
-
-sub git_print_page_path {
-       my $name = shift;
-       my $type = shift;
-
-       if (!defined $name) {
-               print "<div class=\"page_path\"><b>/</b></div>\n";
-       } elsif ($type =~ "blob") {
-               print "<div class=\"page_path\"><b>" .
-                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob_plain;f=$file_name")}, esc_html($name)) . "</b><br/></div>\n";
-       } else {
-               print "<div class=\"page_path\"><b>" . esc_html($name) . "</b><br/></div>\n";
-       }
-}
-
-sub git_tag {
-       my $head = git_read_head($project);
-       git_header_html();
-       print "<div class=\"page_nav\">\n" .
-             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
-             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
-             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "log") .
-             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$head")}, "commit") .
-             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$head")}, "commitdiff") .
-             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;hb=$head")}, "tree") . "<br/>\n" .
-             "<br/>\n" .
-             "</div>\n";
-       my %tag = git_read_tag($hash);
-       print "<div>\n" .
-             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash"), -class => "title"}, esc_html($tag{'name'})) . "\n" .
-             "</div>\n";
-       print "<div class=\"title_text\">\n" .
-             "<table cellspacing=\"0\">\n" .
-             "<tr>\n" .
-             "<td>object</td>\n" .
-             "<td>" . $cgi->a({-class => "list", -href => "$my_uri?" . esc_param("p=$project;a=$tag{'type'};h=$tag{'object'}")}, $tag{'object'}) . "</td>\n" .
-             "<td class=\"link\">" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$tag{'type'};h=$tag{'object'}")}, $tag{'type'}) . "</td>\n" .
-             "</tr>\n";
-       if (defined($tag{'author'})) {
-               my %ad = date_str($tag{'epoch'}, $tag{'tz'});
-               print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
-               print "<tr><td></td><td>" . $ad{'rfc2822'} . sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) . "</td></tr>\n";
-       }
-       print "</table>\n\n" .
-             "</div>\n";
-       print "<div class=\"page_body\">";
-       my $comment = $tag{'comment'};
-       foreach my $line (@$comment) {
-               print esc_html($line) . "<br/>\n";
-       }
-       print "</div>\n";
-       git_footer_html();
-}
-
-sub git_blame2 {
-       my $fd;
-       my $ftype;
-       die_error(undef, "Permission denied.") if (!git_get_project_config_bool ('blame'));
-       die_error('404 Not Found', "File name not defined") if (!$file_name);
-       $hash_base ||= git_read_head($project);
-       die_error(undef, "Reading commit failed") unless ($hash_base);
-       my %co = git_read_commit($hash_base)
-               or die_error(undef, "Reading commit failed");
-       if (!defined $hash) {
-               $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
-                       or die_error(undef, "Error looking up file");
-       }
-       $ftype = git_get_type($hash);
-       if ($ftype !~ "blob") {
-               die_error("400 Bad Request", "object is not a blob");
-       }
-       open ($fd, "-|", $GIT, "blame", '-l', $file_name, $hash_base)
-               or die_error(undef, "Open failed");
-       git_header_html();
-       print "<div class=\"page_nav\">\n" .
-               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
-               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
-               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "log") .
-               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base")}, "commit") .
-               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash_base")}, "commitdiff") .
-               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash_base")}, "tree") . "<br/>\n";
-       print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$hash;hb=$hash_base;f=$file_name")}, "blob") .
-               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blame;f=$file_name")}, "head") . "<br/>\n";
-       print "</div>\n".
-               "<div>" .
-               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base"), -class => "title"}, esc_html($co{'title'})) .
-               "</div>\n";
-       git_print_page_path($file_name, $ftype);
-       my @rev_color = (qw(light dark));
-       my $num_colors = scalar(@rev_color);
-       my $current_color = 0;
-       my $last_rev;
-       print "<div class=\"page_body\">\n";
-       print "<table class=\"blame\">\n";
-       print "<tr><th>Commit</th><th>Line</th><th>Data</th></tr>\n";
-       while (<$fd>) {
-               /^([0-9a-fA-F]{40}).*?(\d+)\)\s{1}(\s*.*)/;
-               my $full_rev = $1;
-               my $rev = substr($full_rev, 0, 8);
-               my $lineno = $2;
-               my $data = $3;
-
-               if (!defined $last_rev) {
-                       $last_rev = $full_rev;
-               } elsif ($last_rev ne $full_rev) {
-                       $last_rev = $full_rev;
-                       $current_color = ++$current_color % $num_colors;
-               }
-               print "<tr class=\"$rev_color[$current_color]\">\n";
-               print "<td class=\"sha1\">" .
-                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$full_rev;f=$file_name")}, esc_html($rev)) . "</td>\n";
-               print "<td class=\"linenr\"><a id=\"l$lineno\" href=\"#l$lineno\" class=\"linenr\">" . esc_html($lineno) . "</a></td>\n";
-               print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
-               print "</tr>\n";
-       }
-       print "</table>\n";
-       print "</div>";
-       close $fd or print "Reading blob failed\n";
-       git_footer_html();
-}
-
-sub git_blame {
-       my $fd;
-       die_error('403 Permission denied', "Permission denied.") if (!git_get_project_config_bool ('blame'));
-       die_error('404 Not Found', "What file will it be, master?") if (!$file_name);
-       $hash_base ||= git_read_head($project);
-       die_error(undef, "Reading commit failed.") unless ($hash_base);
-       my %co = git_read_commit($hash_base)
-               or die_error(undef, "Reading commit failed.");
-       if (!defined $hash) {
-               $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
-                       or die_error(undef, "Error lookup file.");
-       }
-       open ($fd, "-|", $GIT, "annotate", '-l', '-t', '-r', $file_name, $hash_base)
-               or die_error(undef, "Open failed.");
-       git_header_html();
-       print "<div class=\"page_nav\">\n" .
-               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
-               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
-               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "log") .
-               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base")}, "commit") .
-               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash_base")}, "commitdiff") .
-               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash_base")}, "tree") . "<br/>\n";
-       print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$hash;hb=$hash_base;f=$file_name")}, "blob") .
-               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blame;f=$file_name")}, "head") . "<br/>\n";
-       print "</div>\n".
-               "<div>" .
-               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base"), -class => "title"}, esc_html($co{'title'})) .
-               "</div>\n";
-       git_print_page_path($file_name);
-       print "<div class=\"page_body\">\n";
-       print <<HTML;
-<table class="blame">
-  <tr>
-    <th>Commit</th>
-    <th>Age</th>
-    <th>Author</th>
-    <th>Line</th>
-    <th>Data</th>
-  </tr>
-HTML
-       my @line_class = (qw(light dark));
-       my $line_class_len = scalar (@line_class);
-       my $line_class_num = $#line_class;
-       while (my $line = <$fd>) {
-               my $long_rev;
-               my $short_rev;
-               my $author;
-               my $time;
-               my $lineno;
-               my $data;
-               my $age;
-               my $age_str;
-               my $age_class;
-
-               chomp $line;
-               $line_class_num = ($line_class_num + 1) % $line_class_len;
-
-               if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) \+\d\d\d\d\t(\d+)\)(.*)$/) {
-                       $long_rev = $1;
-                       $author   = $2;
-                       $time     = $3;
-                       $lineno   = $4;
-                       $data     = $5;
-               } else {
-                       print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
-                       next;
-               }
-               $short_rev  = substr ($long_rev, 0, 8);
-               $age        = time () - $time;
-               $age_str    = age_string ($age);
-               $age_str    =~ s/ /&nbsp;/g;
-               $age_class  = age_class($age);
-               $author     = esc_html ($author);
-               $author     =~ s/ /&nbsp;/g;
-               # escape tabs
-               while ((my $pos = index($data, "\t")) != -1) {
-                       if (my $count = (8 - ($pos % 8))) {
-                               my $spaces = ' ' x $count;
-                               $data =~ s/\t/$spaces/;
-                       }
-               }
-               $data = esc_html ($data);
-
-               print <<HTML;
-  <tr class="$line_class[$line_class_num]">
-    <td class="sha1"><a href="$my_uri?${\esc_param ("p=$project;a=commit;h=$long_rev")}" class="text">$short_rev..</a></td>
-    <td class="$age_class">$age_str</td>
-    <td>$author</td>
-    <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
-    <td class="pre">$data</td>
-  </tr>
-HTML
-       } # while (my $line = <$fd>)
-       print "</table>\n\n";
-       close $fd or print "Reading blob failed.\n";
-       print "</div>";
-       git_footer_html();
-}
-
-sub git_tags {
-       my $head = git_read_head($project);
-       git_header_html();
-       print "<div class=\"page_nav\">\n" .
-             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
-             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
-             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "log") .
-             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$head")}, "commit") .
-             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$head")}, "commitdiff") .
-             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;hb=$head")}, "tree") . "<br/>\n" .
-             "<br/>\n" .
-             "</div>\n";
-       my $taglist = git_read_refs("refs/tags");
-       print "<div>\n" .
-             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary"), -class => "title"}, "&nbsp;") .
-             "</div>\n";
-       print "<table cellspacing=\"0\">\n";
-       my $alternate = 0;
-       if (defined @$taglist) {
-               foreach my $entry (@$taglist) {
-                       my %tag = %$entry;
-                       my $comment_lines = $tag{'comment'};
-                       my $comment = shift @$comment_lines;
-                       if (defined($comment)) {
-                               $comment = chop_str($comment, 30, 5);
-                       }
-                       if ($alternate) {
-                               print "<tr class=\"dark\">\n";
-                       } else {
-                               print "<tr class=\"light\">\n";
-                       }
-                       $alternate ^= 1;
-                       print "<td><i>$tag{'age'}</i></td>\n" .
-                             "<td>" .
-                             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$tag{'reftype'};h=$tag{'refid'}"), -class => "list"},
-                             "<b>" . esc_html($tag{'name'}) . "</b>") .
-                             "</td>\n" .
-                             "<td>";
-                       if (defined($comment)) {
-                             print $cgi->a({-class => "list", -href => "$my_uri?" . esc_param("p=$project;a=tag;h=$tag{'id'}")}, $comment);
-                       }
-                       print "</td>\n" .
-                             "<td class=\"link\">";
-                       if ($tag{'type'} eq "tag") {
-                             print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tag;h=$tag{'id'}")}, "tag") . " | ";
-                       }
-                       print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$tag{'reftype'};h=$tag{'refid'}")}, $tag{'reftype'});
-                       if ($tag{'reftype'} eq "commit") {
-                             print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}")}, "shortlog") .
-                                   " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$tag{'refid'}")}, "log");
-                       }
-                       print "</td>\n" .
-                             "</tr>";
-               }
-       }
-       print "</table\n>";
-       git_footer_html();
-}
-
-sub git_heads {
-       my $head = git_read_head($project);
-       git_header_html();
-       print "<div class=\"page_nav\">\n" .
-             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
-             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
-             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "log") .
-             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$head")}, "commit") .
-             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$head")}, "commitdiff") .
-             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;hb=$head")}, "tree") . "<br/>\n" .
-             "<br/>\n" .
-             "</div>\n";
-       my $taglist = git_read_refs("refs/heads");
-       print "<div>\n" .
-             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary"), -class => "title"}, "&nbsp;") .
-             "</div>\n";
-       print "<table cellspacing=\"0\">\n";
-       my $alternate = 0;
-       if (defined @$taglist) {
-               foreach my $entry (@$taglist) {
-                       my %tag = %$entry;
-                       if ($alternate) {
-                               print "<tr class=\"dark\">\n";
-                       } else {
-                               print "<tr class=\"light\">\n";
-                       }
-                       $alternate ^= 1;
-                       print "<td><i>$tag{'age'}</i></td>\n" .
-                             "<td>" .
-                             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}"), -class => "list"}, "<b>" . esc_html($tag{'name'}) . "</b>") .
-                             "</td>\n" .
-                             "<td class=\"link\">" .
-                             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}")}, "shortlog") .
-                             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$tag{'name'}")}, "log") .
-                             "</td>\n" .
-                             "</tr>";
-               }
-       }
-       print "</table\n>";
-       git_footer_html();
-}
-
-sub git_get_hash_by_path {
-       my $base = shift;
-       my $path = shift || return undef;
-
-       my $tree = $base;
-       my @parts = split '/', $path;
-       while (my $part = shift @parts) {
-               open my $fd, "-|", "$GIT ls-tree $tree" or die_error(undef, "Open git-ls-tree failed.");
-               my (@entries) = map { chomp; $_ } <$fd>;
-               close $fd or return undef;
-               foreach my $line (@entries) {
-                       #'100644        blob    0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa        panic.c'
-                       $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
-                       my $t_mode = $1;
-                       my $t_type = $2;
-                       my $t_hash = $3;
-                       my $t_name = validate_input(unquote($4));
-                       if ($t_name eq $part) {
-                               if (!(@parts)) {
-                                       return $t_hash;
-                               }
-                               if ($t_type eq "tree") {
-                                       $tree = $t_hash;
-                               }
-                               last;
-                       }
-               }
-       }
-}
-
-sub mimetype_guess_file {
-       my $filename = shift;
-       my $mimemap = shift;
-       -r $mimemap or return undef;
-
-       my %mimemap;
-       open(MIME, $mimemap) or return undef;
-       while (<MIME>) {
-               my ($mime, $exts) = split(/\t+/);
-               my @exts = split(/\s+/, $exts);
-               foreach my $ext (@exts) {
-                       $mimemap{$ext} = $mime;
-               }
-       }
-       close(MIME);
-
-       $filename =~ /\.(.*?)$/;
-       return $mimemap{$1};
-}
-
-sub mimetype_guess {
-       my $filename = shift;
-       my $mime;
-       $filename =~ /\./ or return undef;
-
-       if ($mimetypes_file) {
-               my $file = $mimetypes_file;
-               #$file =~ m#^/# or $file = "$projectroot/$path/$file";
-               $mime = mimetype_guess_file($filename, $file);
-       }
-       $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
-       return $mime;
-}
-
-sub git_blob_plain_mimetype {
-       my $fd = shift;
-       my $filename = shift;
-
-       if ($filename) {
-               my $mime = mimetype_guess($filename);
-               $mime and return $mime;
-       }
-
-       # just in case
-       return $default_blob_plain_mimetype unless $fd;
-
-       if (-T $fd) {
-               return 'text/plain' .
-                      ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
-       } elsif (! $filename) {
-               return 'application/octet-stream';
-       } elsif ($filename =~ m/\.png$/i) {
-               return 'image/png';
-       } elsif ($filename =~ m/\.gif$/i) {
-               return 'image/gif';
-       } elsif ($filename =~ m/\.jpe?g$/i) {
-               return 'image/jpeg';
-       } else {
-               return 'application/octet-stream';
-       }
-}
-
-sub git_blob_plain {
-       if (!defined $hash) {
-                if (defined $file_name) {
-                        my $base = $hash_base || git_read_head($project);
-                        $hash = git_get_hash_by_path($base, $file_name, "blob") || die_error(undef, "Error lookup file.");
-                } else {
-                        die_error(undef, "No file name defined.");
-                }
-        }
-       my $type = shift;
-       open my $fd, "-|", "$GIT cat-file blob $hash" or die_error("Couldn't cat $file_name, $hash");
-
-       $type ||= git_blob_plain_mimetype($fd, $file_name);
-
-       # save as filename, even when no $file_name is given
-       my $save_as = "$hash";
-       if (defined $file_name) {
-               $save_as = $file_name;
-       } elsif ($type =~ m/^text\//) {
-               $save_as .= '.txt';
-       }
-
-       print $cgi->header(-type => "$type", '-content-disposition' => "inline; filename=\"$save_as\"");
-       undef $/;
-       binmode STDOUT, ':raw';
-       print <$fd>;
-       binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
-       $/ = "\n";
-       close $fd;
-}
-
-sub git_blob {
-       if (!defined $hash) {
-                if (defined $file_name) {
-                        my $base = $hash_base || git_read_head($project);
-                        $hash = git_get_hash_by_path($base, $file_name, "blob") || die_error(undef, "Error lookup file.");
-                } else {
-                        die_error(undef, "No file name defined.");
-                }
-        }
-       my $have_blame = git_get_project_config_bool ('blame');
-       open my $fd, "-|", "$GIT cat-file blob $hash" or die_error(undef, "Open failed.");
-       my $mimetype = git_blob_plain_mimetype($fd, $file_name);
-       if ($mimetype !~ m/^text\//) {
-               close $fd;
-               return git_blob_plain($mimetype);
-       }
-       git_header_html();
-       if (defined $hash_base && (my %co = git_read_commit($hash_base))) {
-               print "<div class=\"page_nav\">\n" .
-                     $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
-                     " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
-                     " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "log") .
-                     " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base")}, "commit") .
-                     " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash_base")}, "commitdiff") .
-                     " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash_base")}, "tree") . "<br/>\n";
-               if (defined $file_name) {
-                       if ($have_blame) {
-                               print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blame;h=$hash;hb=$hash_base;f=$file_name")}, "blame") .  " | ";
-                       }
-                       print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob_plain;h=$hash;f=$file_name")}, "plain") .
-                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;hb=HEAD;f=$file_name")}, "head") . "<br/>\n";
-               } else {
-                       print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob_plain;h=$hash")}, "plain") . "<br/>\n";
-               }
-               print "</div>\n".
-                      "<div>" .
-                     $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base"), -class => "title"}, esc_html($co{'title'})) .
-                     "</div>\n";
-       } else {
-               print "<div class=\"page_nav\">\n" .
-                     "<br/><br/></div>\n" .
-                     "<div class=\"title\">$hash</div>\n";
-       }
-       git_print_page_path($file_name, "blob");
-       print "<div class=\"page_body\">\n";
-       my $nr;
-       while (my $line = <$fd>) {
-               chomp $line;
-               $nr++;
-               while ((my $pos = index($line, "\t")) != -1) {
-                       if (my $count = (8 - ($pos % 8))) {
-                               my $spaces = ' ' x $count;
-                               $line =~ s/\t/$spaces/;
-                       }
-               }
-               printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n", $nr, $nr, $nr, esc_html($line);
-       }
-       close $fd or print "Reading blob failed.\n";
-       print "</div>";
-       git_footer_html();
-}
-
-sub git_tree {
-       if (!defined $hash) {
-               $hash = git_read_head($project);
-               if (defined $file_name) {
-                       my $base = $hash_base || $hash;
-                       $hash = git_get_hash_by_path($base, $file_name, "tree");
-               }
-               if (!defined $hash_base) {
-                       $hash_base = $hash;
-               }
-       }
-       $/ = "\0";
-       open my $fd, "-|", "$GIT ls-tree -z $hash" or die_error(undef, "Open git-ls-tree failed.");
-       chomp (my (@entries) = <$fd>);
-       close $fd or die_error(undef, "Reading tree failed.");
-       $/ = "\n";
-
-       my $refs = read_info_ref();
-       my $ref = "";
-       if (defined $refs->{$hash_base}) {
-               $ref = " <span class=\"tag\">" . esc_html($refs->{$hash_base}) . "</span>";
-       }
-       git_header_html();
-       my $base_key = "";
-       my $base = "";
-       if (defined $hash_base && (my %co = git_read_commit($hash_base))) {
-               $base_key = ";hb=$hash_base";
-               print "<div class=\"page_nav\">\n" .
-                     $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
-                     " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$hash_base")}, "shortlog") .
-                     " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$hash_base")}, "log") .
-                     " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base")}, "commit") .
-                     " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash_base")}, "commitdiff") .
-                     " | tree" .
-                     "<br/><br/>\n" .
-                     "</div>\n";
-               print "<div>\n" .
-                     $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base"), -class => "title"}, esc_html($co{'title'}) . $ref) . "\n" .
-                     "</div>\n";
-       } else {
-               print "<div class=\"page_nav\">\n";
-               print "<br/><br/></div>\n";
-               print "<div class=\"title\">$hash</div>\n";
-       }
-       if (defined $file_name) {
-               $base = esc_html("$file_name/");
-       }
-       git_print_page_path($file_name);
-       print "<div class=\"page_body\">\n";
-       print "<table cellspacing=\"0\">\n";
-       my $alternate = 0;
-       foreach my $line (@entries) {
-               #'100644        blob    0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa        panic.c'
-               $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
-               my $t_mode = $1;
-               my $t_type = $2;
-               my $t_hash = $3;
-               my $t_name = validate_input($4);
-               if ($alternate) {
-                       print "<tr class=\"dark\">\n";
-               } else {
-                       print "<tr class=\"light\">\n";
-               }
-               $alternate ^= 1;
-               print "<td class=\"mode\">" . mode_str($t_mode) . "</td>\n";
-               if ($t_type eq "blob") {
-                       print "<td class=\"list\">" .
-                             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$t_hash$base_key;f=$base$t_name"), -class => "list"}, esc_html($t_name)) .
-                             "</td>\n" .
-                             "<td class=\"link\">" .
-                             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$t_hash$base_key;f=$base$t_name")}, "blob") .
-#                            " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blame;h=$t_hash$base_key;f=$base$t_name")}, "blame") .
-                             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=history;h=$t_hash;hb=$hash_base;f=$base$t_name")}, "history") .
-                             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob_plain;h=$t_hash;f=$base$t_name")}, "raw") .
-                             "</td>\n";
-               } elsif ($t_type eq "tree") {
-                       print "<td class=\"list\">" .
-                             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$t_hash$base_key;f=$base$t_name")}, esc_html($t_name)) .
-                             "</td>\n" .
-                             "<td class=\"link\">" .
-                             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$t_hash$base_key;f=$base$t_name")}, "tree") .
-                             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=history;hb=$hash_base;f=$base$t_name")}, "history") .
-                             "</td>\n";
-               }
-               print "</tr>\n";
-       }
-       print "</table>\n" .
-             "</div>";
-       git_footer_html();
-}
-
-sub git_rss {
-       # http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
-       open my $fd, "-|", "$GIT rev-list --max-count=150 " . git_read_head($project) or die_error(undef, "Open failed.");
-       my (@revlist) = map { chomp; $_ } <$fd>;
-       close $fd or die_error(undef, "Reading rev-list failed.");
-       print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
-       print "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n".
-             "<rss version=\"2.0\" xmlns:content=\"http://purl.org/rss/1.0/modules/content/\">\n";
-       print "<channel>\n";
-       print "<title>$project</title>\n".
-             "<link>" . esc_html("$my_url?p=$project;a=summary") . "</link>\n".
-             "<description>$project log</description>\n".
-             "<language>en</language>\n";
-
-       for (my $i = 0; $i <= $#revlist; $i++) {
-               my $commit = $revlist[$i];
-               my %co = git_read_commit($commit);
-               # we read 150, we always show 30 and the ones more recent than 48 hours
-               if (($i >= 20) && ((time - $co{'committer_epoch'}) > 48*60*60)) {
-                       last;
-               }
-               my %cd = date_str($co{'committer_epoch'});
-               open $fd, "-|", "$GIT diff-tree -r $co{'parent'} $co{'id'}" or next;
-               my @difftree = map { chomp; $_ } <$fd>;
-               close $fd or next;
-               print "<item>\n" .
-                     "<title>" .
-                     sprintf("%d %s %02d:%02d", $cd{'mday'}, $cd{'month'}, $cd{'hour'}, $cd{'minute'}) . " - " . esc_html($co{'title'}) .
-                     "</title>\n" .
-                     "<author>" . esc_html($co{'author'}) . "</author>\n" .
-                     "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
-                     "<guid isPermaLink=\"true\">" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</guid>\n" .
-                     "<link>" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</link>\n" .
-                     "<description>" . esc_html($co{'title'}) . "</description>\n" .
-                     "<content:encoded>" .
-                     "<![CDATA[\n";
-               my $comment = $co{'comment'};
-               foreach my $line (@$comment) {
-                       $line = decode("utf8", $line, Encode::FB_DEFAULT);
-                       print "$line<br/>\n";
-               }
-               print "<br/>\n";
-               foreach my $line (@difftree) {
-                       if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
-                               next;
-                       }
-                       my $file = validate_input(unquote($7));
-                       $file = decode("utf8", $file, Encode::FB_DEFAULT);
-                       print "$file<br/>\n";
-               }
-               print "]]>\n" .
-                     "</content:encoded>\n" .
-                     "</item>\n";
-       }
-       print "</channel></rss>";
-}
-
-sub git_opml {
-       my @list = git_read_projects();
-
-       print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
-       print "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n".
-             "<opml version=\"1.0\">\n".
-             "<head>".
-             "  <title>$site_name Git OPML Export</title>\n".
-             "</head>\n".
-             "<body>\n".
-             "<outline text=\"git RSS feeds\">\n";
-
-       foreach my $pr (@list) {
-               my %proj = %$pr;
-               my $head = git_read_head($proj{'path'});
-               if (!defined $head) {
-                       next;
-               }
-               $ENV{'GIT_DIR'} = "$projectroot/$proj{'path'}";
-               my %co = git_read_commit($head);
-               if (!%co) {
-                       next;
-               }
-
-               my $path = esc_html(chop_str($proj{'path'}, 25, 5));
-               my $rss  = "$my_url?p=$proj{'path'};a=rss";
-               my $html = "$my_url?p=$proj{'path'};a=summary";
-               print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
-       }
-       print "</outline>\n".
-             "</body>\n".
-             "</opml>\n";
-}
-
-sub git_log {
-       my $head = git_read_head($project);
-       if (!defined $hash) {
-               $hash = $head;
-       }
-       if (!defined $page) {
-               $page = 0;
-       }
-       my $refs = read_info_ref();
-       git_header_html();
-       print "<div class=\"page_nav\">\n";
-       print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
-             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$hash")}, "shortlog") .
-             " | log" .
-             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash")}, "commit") .
-             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash")}, "commitdiff") .
-             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$hash;hb=$hash")}, "tree") . "<br/>\n";
-
-       my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
-       open my $fd, "-|", "$GIT rev-list $limit $hash" or die_error(undef, "Open failed.");
-       my (@revlist) = map { chomp; $_ } <$fd>;
-       close $fd;
-
-       if ($hash ne $head || $page) {
-               print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "HEAD");
-       } else {
-               print "HEAD";
-       }
-       if ($page > 0) {
-               print " &sdot; " .
-               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$hash;pg=" . ($page-1)), -accesskey => "p", -title => "Alt-p"}, "prev");
-       } else {
-               print " &sdot; prev";
-       }
-       if ($#revlist >= (100 * ($page+1)-1)) {
-               print " &sdot; " .
-               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$hash;pg=" . ($page+1)), -accesskey => "n", -title => "Alt-n"}, "next");
-       } else {
-               print " &sdot; next";
-       }
-       print "<br/>\n" .
-             "</div>\n";
-       if (!@revlist) {
-               print "<div>\n" .
-                     $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary"), -class => "title"}, "&nbsp;") .
-                     "</div>\n";
-               my %co = git_read_commit($hash);
-               print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
-       }
-       for (my $i = ($page * 100); $i <= $#revlist; $i++) {
-               my $commit = $revlist[$i];
-               my $ref = "";
-               if (defined $refs->{$commit}) {
-                       $ref = " <span class=\"tag\">" . esc_html($refs->{$commit}) . "</span>";
-               }
-               my %co = git_read_commit($commit);
-               next if !%co;
-               my %ad = date_str($co{'author_epoch'});
-               print "<div>\n" .
-                     $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit"), -class => "title"},
-                     "<span class=\"age\">$co{'age_string'}</span>" . esc_html($co{'title'}) . $ref) . "\n";
-               print "</div>\n";
-               print "<div class=\"title_text\">\n" .
-                     "<div class=\"log_link\">\n" .
-                     $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit")}, "commit") .
-                     " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$commit")}, "commitdiff") .
-                     "<br/>\n" .
-                     "</div>\n" .
-                     "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
-                     "</div>\n" .
-                     "<div class=\"log_body\">\n";
-               my $comment = $co{'comment'};
-               my $empty = 0;
-               foreach my $line (@$comment) {
-                       if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
-                               next;
-                       }
-                       if ($line eq "") {
-                               if ($empty) {
-                                       next;
-                               }
-                               $empty = 1;
-                       } else {
-                               $empty = 0;
-                       }
-                       print format_log_line_html($line) . "<br/>\n";
-               }
-               if (!$empty) {
-                       print "<br/>\n";
-               }
-               print "</div>\n";
-       }
-       git_footer_html();
-}
-
-sub git_commit {
-       my %co = git_read_commit($hash);
-       if (!%co) {
-               die_error(undef, "Unknown commit object.");
-       }
-       my %ad = date_str($co{'author_epoch'}, $co{'author_tz'});
-       my %cd = date_str($co{'committer_epoch'}, $co{'committer_tz'});
-
-       my @difftree;
-       my $root = "";
-       my $parent = $co{'parent'};
-       if (!defined $parent) {
-               $root = " --root";
-               $parent = "";
-       }
-       open my $fd, "-|", "$GIT diff-tree -r -M $root $parent $hash" or die_error(undef, "Open failed.");
-       @difftree = map { chomp; $_ } <$fd>;
-       close $fd or die_error(undef, "Reading diff-tree failed.");
-
-       # non-textual hash id's can be cached
-       my $expires;
-       if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
-               $expires = "+1d";
-       }
-       my $refs = read_info_ref();
-       my $ref = "";
-       if (defined $refs->{$co{'id'}}) {
-               $ref = " <span class=\"tag\">" . esc_html($refs->{$co{'id'}}) . "</span>";
-       }
-       git_header_html(undef, $expires);
-       print "<div class=\"page_nav\">\n" .
-             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
-             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$hash")}, "shortlog") .
-             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$hash")}, "log") .
-             " | commit";
-       if (defined $co{'parent'}) {
-               print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash")}, "commitdiff");
-       }
-       print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash")}, "tree") . "\n" .
-               "<br/>\n";
-       if (defined $file_name && defined $co{'parent'}) {
-               my $parent = $co{'parent'};
-               print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blame;hb=$parent;f=$file_name")}, "blame") . "\n";
-       }
-       print "<br/></div>\n";
-
-       if (defined $co{'parent'}) {
-               print "<div>\n" .
-                     $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash"), -class => "title"}, esc_html($co{'title'}) . $ref) . "\n" .
-                     "</div>\n";
-       } else {
-               print "<div>\n" .
-                     $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash"), -class => "title"}, esc_html($co{'title'})) . "\n" .
-                     "</div>\n";
-       }
-       print "<div class=\"title_text\">\n" .
-             "<table cellspacing=\"0\">\n";
-       print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
-             "<tr>" .
-             "<td></td><td> $ad{'rfc2822'}";
-       if ($ad{'hour_local'} < 6) {
-               printf(" (<span class=\"atnight\">%02d:%02d</span> %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
-       } else {
-               printf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
-       }
-       print "</td>" .
-             "</tr>\n";
-       print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
-       print "<tr><td></td><td> $cd{'rfc2822'}" . sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) . "</td></tr>\n";
-       print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
-       print "<tr>" .
-             "<td>tree</td>" .
-             "<td class=\"sha1\">" .
-             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash"), class => "list"}, $co{'tree'}) .
-             "</td>" .
-             "<td class=\"link\">" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash")}, "tree") .
-             "</td>" .
-             "</tr>\n";
-       my $parents = $co{'parents'};
-       foreach my $par (@$parents) {
-               print "<tr>" .
-                     "<td>parent</td>" .
-                     "<td class=\"sha1\">" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$par"), class => "list"}, $par) . "</td>" .
-                     "<td class=\"link\">" .
-                     $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$par")}, "commit") .
-                     " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash;hp=$par")}, "commitdiff") .
-                     "</td>" .
-                     "</tr>\n";
-       }
-       print "</table>".
-             "</div>\n";
-       print "<div class=\"page_body\">\n";
-       my $comment = $co{'comment'};
-       my $empty = 0;
-       my $signed = 0;
-       foreach my $line (@$comment) {
-               # print only one empty line
-               if ($line eq "") {
-                       if ($empty || $signed) {
-                               next;
-                       }
-                       $empty = 1;
-               } else {
-                       $empty = 0;
-               }
-               if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
-                       $signed = 1;
-                       print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
-               } else {
-                       $signed = 0;
-                       print format_log_line_html($line) . "<br/>\n";
-               }
-       }
-       print "</div>\n";
-       print "<div class=\"list_head\">\n";
-       if ($#difftree > 10) {
-               print(($#difftree + 1) . " files changed:\n");
-       }
-       print "</div>\n";
-       print "<table class=\"diff_tree\">\n";
-       my $alternate = 0;
-       foreach my $line (@difftree) {
-               # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M      ls-files.c'
-               # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M      rev-tree.c'
-               if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
-                       next;
-               }
-               my $from_mode = $1;
-               my $to_mode = $2;
-               my $from_id = $3;
-               my $to_id = $4;
-               my $status = $5;
-               my $similarity = $6;
-               my $file = validate_input(unquote($7));
-               if ($alternate) {
-                       print "<tr class=\"dark\">\n";
-               } else {
-                       print "<tr class=\"light\">\n";
-               }
-               $alternate ^= 1;
-               if ($status eq "A") {
-                       my $mode_chng = "";
-                       if (S_ISREG(oct $to_mode)) {
-                               $mode_chng = sprintf(" with mode: %04o", (oct $to_mode) & 0777);
-                       }
-                       print "<td>" .
-                             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file"), -class => "list"}, esc_html($file)) . "</td>\n" .
-                             "<td><span class=\"file_status new\">[new " . file_type($to_mode) . "$mode_chng]</span></td>\n" .
-                             "<td class=\"link\">" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file")}, "blob") . "</td>\n";
-               } elsif ($status eq "D") {
-                       print "<td>" .
-                             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$from_id;hb=$hash;f=$file"), -class => "list"}, esc_html($file)) . "</td>\n" .
-                             "<td><span class=\"file_status deleted\">[deleted " . file_type($from_mode). "]</span></td>\n" .
-                             "<td class=\"link\">" .
-                             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$from_id;hb=$hash;f=$file")}, "blob") .
-                             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=history;hb=$hash;f=$file")}, "history") .
-                             "</td>\n"
-               } elsif ($status eq "M" || $status eq "T") {
-                       my $mode_chnge = "";
-                       if ($from_mode != $to_mode) {
-                               $mode_chnge = " <span class=\"file_status mode_chnge\">[changed";
-                               if (((oct $from_mode) & S_IFMT) != ((oct $to_mode) & S_IFMT)) {
-                                       $mode_chnge .= " from " . file_type($from_mode) . " to " . file_type($to_mode);
-                               }
-                               if (((oct $from_mode) & 0777) != ((oct $to_mode) & 0777)) {
-                                       if (S_ISREG($from_mode) && S_ISREG($to_mode)) {
-                                               $mode_chnge .= sprintf(" mode: %04o->%04o", (oct $from_mode) & 0777, (oct $to_mode) & 0777);
-                                       } elsif (S_ISREG($to_mode)) {
-                                               $mode_chnge .= sprintf(" mode: %04o", (oct $to_mode) & 0777);
-                                       }
-                               }
-                               $mode_chnge .= "]</span>\n";
-                       }
-                       print "<td>";
-                       if ($to_id ne $from_id) {
-                               print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blobdiff;h=$to_id;hp=$from_id;hb=$hash;f=$file"), -class => "list"}, esc_html($file));
-                       } else {
-                               print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file"), -class => "list"}, esc_html($file));
-                       }
-                       print "</td>\n" .
-                             "<td>$mode_chnge</td>\n" .
-                             "<td class=\"link\">";
-                       print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file")}, "blob");
-                       if ($to_id ne $from_id) {
-                               print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blobdiff;h=$to_id;hp=$from_id;hb=$hash;f=$file")}, "diff");
-                       }
-                       print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=history;hb=$hash;f=$file")}, "history") . "\n";
-                       print "</td>\n";
-               } elsif ($status eq "R") {
-                       my ($from_file, $to_file) = split "\t", $file;
-                       my $mode_chng = "";
-                       if ($from_mode != $to_mode) {
-                               $mode_chng = sprintf(", mode: %04o", (oct $to_mode) & 0777);
-                       }
-                       print "<td>" .
-                             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$to_file"), -class => "list"}, esc_html($to_file)) . "</td>\n" .
-                             "<td><span class=\"file_status moved\">[moved from " .
-                             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$from_id;hb=$hash;f=$from_file"), -class => "list"}, esc_html($from_file)) .
-                             " with " . (int $similarity) . "% similarity$mode_chng]</span></td>\n" .
-                             "<td class=\"link\">" .
-                             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$to_file")}, "blob");
-                       if ($to_id ne $from_id) {
-                               print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blobdiff;h=$to_id;hp=$from_id;hb=$hash;f=$to_file")}, "diff");
-                       }
-                       print "</td>\n";
-               }
-               print "</tr>\n";
-       }
-       print "</table>\n";
-       git_footer_html();
-}
-
-sub git_blobdiff {
-       mkdir($git_temp, 0700);
-       git_header_html();
-       if (defined $hash_base && (my %co = git_read_commit($hash_base))) {
-               print "<div class=\"page_nav\">\n" .
-                     $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
-                     " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
-                     " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "log") .
-                     " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base")}, "commit") .
-                     " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash_base")}, "commitdiff") .
-                     " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash_base")}, "tree") .
-                     "<br/>\n";
-               print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blobdiff_plain;h=$hash;hp=$hash_parent")}, "plain") .
-                     "</div>\n";
-               print "<div>\n" .
-                     $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base"), -class => "title"}, esc_html($co{'title'})) . "\n" .
-                     "</div>\n";
-       } else {
-               print "<div class=\"page_nav\">\n" .
-                     "<br/><br/></div>\n" .
-                     "<div class=\"title\">$hash vs $hash_parent</div>\n";
-       }
-       git_print_page_path($file_name, "blob");
-       print "<div class=\"page_body\">\n" .
-             "<div class=\"diff_info\">blob:" .
-             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$hash_parent;hb=$hash_base;f=$file_name")}, $hash_parent) .
-             " -> blob:" .
-             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$hash;hb=$hash_base;f=$file_name")}, $hash) .
-             "</div>\n";
-       git_diff_print($hash_parent, $file_name || $hash_parent, $hash, $file_name || $hash);
-       print "</div>";
-       git_footer_html();
-}
-
-sub git_blobdiff_plain {
-       mkdir($git_temp, 0700);
-       print $cgi->header(-type => "text/plain", -charset => 'utf-8');
-       git_diff_print($hash_parent, $file_name || $hash_parent, $hash, $file_name || $hash, "plain");
-}
-
-sub git_commitdiff {
-       mkdir($git_temp, 0700);
-       my %co = git_read_commit($hash);
-       if (!%co) {
-               die_error(undef, "Unknown commit object.");
-       }
-       if (!defined $hash_parent) {
-               $hash_parent = $co{'parent'};
-       }
-       open my $fd, "-|", "$GIT diff-tree -r $hash_parent $hash" or die_error(undef, "Open failed.");
-       my (@difftree) = map { chomp; $_ } <$fd>;
-       close $fd or die_error(undef, "Reading diff-tree failed.");
-
-       # non-textual hash id's can be cached
-       my $expires;
-       if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
-               $expires = "+1d";
-       }
-       my $refs = read_info_ref();
-       my $ref = "";
-       if (defined $refs->{$co{'id'}}) {
-               $ref = " <span class=\"tag\">" . esc_html($refs->{$co{'id'}}) . "</span>";
-       }
-       git_header_html(undef, $expires);
-       print "<div class=\"page_nav\">\n" .
-             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
-             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$hash")}, "shortlog") .
-             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$hash")}, "log") .
-             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash")}, "commit") .
-             " | commitdiff" .
-             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash")}, "tree") . "<br/>\n";
-       print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff_plain;h=$hash;hp=$hash_parent")}, "plain") . "\n" .
-             "</div>\n";
-       print "<div>\n" .
-             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash"), -class => "title"}, esc_html($co{'title'}) . $ref) . "\n" .
-             "</div>\n";
-       print "<div class=\"page_body\">\n";
-       my $comment = $co{'comment'};
-       my $empty = 0;
-       my $signed = 0;
-       my @log = @$comment;
-       # remove first and empty lines after that
-       shift @log;
-       while (defined $log[0] && $log[0] eq "") {
-               shift @log;
-       }
-       foreach my $line (@log) {
-               if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
-                       next;
-               }
-               if ($line eq "") {
-                       if ($empty) {
-                               next;
-                       }
-                       $empty = 1;
-               } else {
-                       $empty = 0;
-               }
-               print format_log_line_html($line) . "<br/>\n";
-       }
-       print "<br/>\n";
-       foreach my $line (@difftree) {
-               # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M      ls-files.c'
-               # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M      rev-tree.c'
-               $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/;
-               my $from_mode = $1;
-               my $to_mode = $2;
-               my $from_id = $3;
-               my $to_id = $4;
-               my $status = $5;
-               my $file = validate_input(unquote($6));
-               if ($status eq "A") {
-                       print "<div class=\"diff_info\">" .  file_type($to_mode) . ":" .
-                             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file")}, $to_id) . "(new)" .
-                             "</div>\n";
-                       git_diff_print(undef, "/dev/null", $to_id, "b/$file");
-               } elsif ($status eq "D") {
-                       print "<div class=\"diff_info\">" . file_type($from_mode) . ":" .
-                             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$from_id;hb=$hash;f=$file")}, $from_id) . "(deleted)" .
-                             "</div>\n";
-                       git_diff_print($from_id, "a/$file", undef, "/dev/null");
-               } elsif ($status eq "M") {
-                       if ($from_id ne $to_id) {
-                               print "<div class=\"diff_info\">" .
-                                     file_type($from_mode) . ":" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$from_id;hb=$hash;f=$file")}, $from_id) .
-                                     " -> " .
-                                     file_type($to_mode) . ":" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file")}, $to_id);
-                               print "</div>\n";
-                               git_diff_print($from_id, "a/$file",  $to_id, "b/$file");
-                       }
-               }
-       }
-       print "<br/>\n" .
-             "</div>";
-       git_footer_html();
-}
-
-sub git_commitdiff_plain {
-       mkdir($git_temp, 0700);
-       open my $fd, "-|", "$GIT diff-tree -r $hash_parent $hash" or die_error(undef, "Open failed.");
-       my (@difftree) = map { chomp; $_ } <$fd>;
-       close $fd or die_error(undef, "Reading diff-tree failed.");
-
-       # try to figure out the next tag after this commit
-       my $tagname;
-       my $refs = read_info_ref("tags");
-       open $fd, "-|", "$GIT rev-list HEAD";
-       chomp (my (@commits) = <$fd>);
-       close $fd;
-       foreach my $commit (@commits) {
-               if (defined $refs->{$commit}) {
-                       $tagname = $refs->{$commit}
-               }
-               if ($commit eq $hash) {
-                       last;
-               }
-       }
-
-       print $cgi->header(-type => "text/plain", -charset => 'utf-8', '-content-disposition' => "inline; filename=\"git-$hash.patch\"");
-       my %co = git_read_commit($hash);
-       my %ad = date_str($co{'author_epoch'}, $co{'author_tz'});
-       my $comment = $co{'comment'};
-       print "From: $co{'author'}\n" .
-             "Date: $ad{'rfc2822'} ($ad{'tz_local'})\n".
-             "Subject: $co{'title'}\n";
-       if (defined $tagname) {
-             print "X-Git-Tag: $tagname\n";
-       }
-       print "X-Git-Url: $my_url?p=$project;a=commitdiff;h=$hash\n" .
-             "\n";
-
-       foreach my $line (@$comment) {;
-               print "$line\n";
-       }
-       print "---\n\n";
-
-       foreach my $line (@difftree) {
-               $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/;
-               my $from_id = $3;
-               my $to_id = $4;
-               my $status = $5;
-               my $file = $6;
-               if ($status eq "A") {
-                       git_diff_print(undef, "/dev/null", $to_id, "b/$file", "plain");
-               } elsif ($status eq "D") {
-                       git_diff_print($from_id, "a/$file", undef, "/dev/null", "plain");
-               } elsif ($status eq "M") {
-                       git_diff_print($from_id, "a/$file",  $to_id, "b/$file", "plain");
-               }
-       }
-}
-
-sub git_history {
-       if (!defined $hash_base) {
-               $hash_base = git_read_head($project);
-       }
-       my $ftype;
-       my %co = git_read_commit($hash_base);
-       if (!%co) {
-               die_error(undef, "Unknown commit object.");
-       }
-       my $refs = read_info_ref();
-       git_header_html();
-       print "<div class=\"page_nav\">\n" .
-             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
-             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
-             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log")}, "log") .
-             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base")}, "commit") .
-             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash_base")}, "commitdiff") .
-             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash_base")}, "tree") .
-             "<br/><br/>\n" .
-             "</div>\n";
-       print "<div>\n" .
-             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base"), -class => "title"}, esc_html($co{'title'})) . "\n" .
-             "</div>\n";
-       if (!defined $hash && defined $file_name) {
-               $hash = git_get_hash_by_path($hash_base, $file_name);
-       }
-       if (defined $hash) {
-               $ftype = git_get_type($hash);
-       }
-       git_print_page_path($file_name, $ftype);
-
-       open my $fd, "-|",
-               "$GIT rev-list --full-history $hash_base -- \'$file_name\'";
-       print "<table cellspacing=\"0\">\n";
-       my $alternate = 0;
-       while (my $line = <$fd>) {
-               if ($line =~ m/^([0-9a-fA-F]{40})/){
-                       my $commit = $1;
-                       my %co = git_read_commit($commit);
-                       if (!%co) {
-                               next;
-                       }
-                       my $ref = "";
-                       if (defined $refs->{$commit}) {
-                               $ref = " <span class=\"tag\">" . esc_html($refs->{$commit}) . "</span>";
-                       }
-                       if ($alternate) {
-                               print "<tr class=\"dark\">\n";
-                       } else {
-                               print "<tr class=\"light\">\n";
-                       }
-                       $alternate ^= 1;
-                       print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
-                             "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
-                             "<td>" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit"), -class => "list"}, "<b>" .
-                             esc_html(chop_str($co{'title'}, 50)) . "$ref</b>") . "</td>\n" .
-                             "<td class=\"link\">" .
-                             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit")}, "commit") .
-                             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$commit")}, "commitdiff") .
-                             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;hb=$commit;f=$file_name")}, "blob");
-                       my $blob = git_get_hash_by_path($hash_base, $file_name);
-                       my $blob_parent = git_get_hash_by_path($commit, $file_name);
-                       if (defined $blob && defined $blob_parent && $blob ne $blob_parent) {
-                               print " | " .
-                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blobdiff;h=$blob;hp=$blob_parent;hb=$commit;f=$file_name")},
-                               "diff to current");
-                       }
-                       print "</td>\n" .
-                             "</tr>\n";
-               }
-       }
-       print "</table>\n";
-       close $fd;
-       git_footer_html();
-}
-
-sub git_search {
-       if (!defined $searchtext) {
-               die_error("", "Text field empty.");
-       }
-       if (!defined $hash) {
-               $hash = git_read_head($project);
-       }
-       my %co = git_read_commit($hash);
-       if (!%co) {
-               die_error(undef, "Unknown commit object.");
-       }
-       # pickaxe may take all resources of your box and run for several minutes
-       # with every query - so decide by yourself how public you make this feature :)
-       my $commit_search = 1;
-       my $author_search = 0;
-       my $committer_search = 0;
-       my $pickaxe_search = 0;
-       if ($searchtext =~ s/^author\\://i) {
-               $author_search = 1;
-       } elsif ($searchtext =~ s/^committer\\://i) {
-               $committer_search = 1;
-       } elsif ($searchtext =~ s/^pickaxe\\://i) {
-               $commit_search = 0;
-               $pickaxe_search = 1;
-       }
-       git_header_html();
-       print "<div class=\"page_nav\">\n" .
-             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary;h=$hash")}, "summary") .
-             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "shortlog") .
-             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$hash")}, "log") .
-             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash")}, "commit") .
-             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash")}, "commitdiff") .
-             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash")}, "tree") .
-             "<br/><br/>\n" .
-             "</div>\n";
-
-       print "<div>\n" .
-             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash"), -class => "title"}, esc_html($co{'title'})) . "\n" .
-             "</div>\n";
-       print "<table cellspacing=\"0\">\n";
-       my $alternate = 0;
-       if ($commit_search) {
-               $/ = "\0";
-               open my $fd, "-|", "$GIT rev-list --header --parents $hash" or next;
-               while (my $commit_text = <$fd>) {
-                       if (!grep m/$searchtext/i, $commit_text) {
-                               next;
-                       }
-                       if ($author_search && !grep m/\nauthor .*$searchtext/i, $commit_text) {
-                               next;
-                       }
-                       if ($committer_search && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
-                               next;
-                       }
-                       my @commit_lines = split "\n", $commit_text;
-                       my %co = git_read_commit(undef, \@commit_lines);
-                       if (!%co) {
-                               next;
-                       }
-                       if ($alternate) {
-                               print "<tr class=\"dark\">\n";
-                       } else {
-                               print "<tr class=\"light\">\n";
-                       }
-                       $alternate ^= 1;
-                       print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
-                             "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
-                             "<td>" .
-                             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$co{'id'}"), -class => "list"}, "<b>" . esc_html(chop_str($co{'title'}, 50)) . "</b><br/>");
-                       my $comment = $co{'comment'};
-                       foreach my $line (@$comment) {
-                               if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
-                                       my $lead = esc_html($1) || "";
-                                       $lead = chop_str($lead, 30, 10);
-                                       my $match = esc_html($2) || "";
-                                       my $trail = esc_html($3) || "";
-                                       $trail = chop_str($trail, 30, 10);
-                                       my $text = "$lead<span class=\"match\">$match</span>$trail";
-                                       print chop_str($text, 80, 5) . "<br/>\n";
-                               }
-                       }
-                       print "</td>\n" .
-                             "<td class=\"link\">" .
-                             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$co{'id'}")}, "commit") .
-                             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$co{'id'}")}, "tree");
-                       print "</td>\n" .
-                             "</tr>\n";
-               }
-               close $fd;
-       }
-
-       if ($pickaxe_search) {
-               $/ = "\n";
-               open my $fd, "-|", "$GIT rev-list $hash | $GIT diff-tree -r --stdin -S\'$searchtext\'";
-               undef %co;
-               my @files;
-               while (my $line = <$fd>) {
-                       if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
-                               my %set;
-                               $set{'file'} = $6;
-                               $set{'from_id'} = $3;
-                               $set{'to_id'} = $4;
-                               $set{'id'} = $set{'to_id'};
-                               if ($set{'id'} =~ m/0{40}/) {
-                                       $set{'id'} = $set{'from_id'};
-                               }
-                               if ($set{'id'} =~ m/0{40}/) {
-                                       next;
-                               }
-                               push @files, \%set;
-                       } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
-                               if (%co) {
-                                       if ($alternate) {
-                                               print "<tr class=\"dark\">\n";
-                                       } else {
-                                               print "<tr class=\"light\">\n";
-                                       }
-                                       $alternate ^= 1;
-                                       print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
-                                             "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
-                                             "<td>" .
-                                             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$co{'id'}"), -class => "list"}, "<b>" .
-                                             esc_html(chop_str($co{'title'}, 50)) . "</b><br/>");
-                                       while (my $setref = shift @files) {
-                                               my %set = %$setref;
-                                               print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$set{'id'};hb=$co{'id'};f=$set{'file'}"), class => "list"},
-                                                     "<span class=\"match\">" . esc_html($set{'file'}) . "</span>") .
-                                                     "<br/>\n";
-                                       }
-                                       print "</td>\n" .
-                                             "<td class=\"link\">" .
-                                             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$co{'id'}")}, "commit") .
-                                             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$co{'id'}")}, "tree");
-                                       print "</td>\n" .
-                                             "</tr>\n";
-                               }
-                               %co = git_read_commit($1);
-                       }
-               }
-               close $fd;
-       }
-       print "</table>\n";
-       git_footer_html();
-}
-
-sub git_shortlog {
-       my $head = git_read_head($project);
-       if (!defined $hash) {
-               $hash = $head;
-       }
-       if (!defined $page) {
-               $page = 0;
-       }
-       my $refs = read_info_ref();
-       git_header_html();
-       print "<div class=\"page_nav\">\n" .
-             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, "summary") .
-             " | shortlog" .
-             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$hash")}, "log") .
-             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash")}, "commit") .
-             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash")}, "commitdiff") .
-             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$hash;hb=$hash")}, "tree") . "<br/>\n";
-
-       my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
-       open my $fd, "-|", "$GIT rev-list $limit $hash" or die_error(undef, "Open failed.");
-       my (@revlist) = map { chomp; $_ } <$fd>;
-       close $fd;
-
-       if ($hash ne $head || $page) {
-               print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "HEAD");
-       } else {
-               print "HEAD";
-       }
-       if ($page > 0) {
-               print " &sdot; " .
-               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$hash;pg=" . ($page-1)), -accesskey => "p", -title => "Alt-p"}, "prev");
-       } else {
-               print " &sdot; prev";
-       }
-       if ($#revlist >= (100 * ($page+1)-1)) {
-               print " &sdot; " .
-               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$hash;pg=" . ($page+1)), -accesskey => "n", -title => "Alt-n"}, "next");
-       } else {
-               print " &sdot; next";
-       }
-       print "<br/>\n" .
-             "</div>\n";
-       print "<div>\n" .
-             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary"), -class => "title"}, "&nbsp;") .
-             "</div>\n";
-       print "<table cellspacing=\"0\">\n";
-       my $alternate = 0;
-       for (my $i = ($page * 100); $i <= $#revlist; $i++) {
-               my $commit = $revlist[$i];
-               my $ref = "";
-               if (defined $refs->{$commit}) {
-                       $ref = " <span class=\"tag\">" . esc_html($refs->{$commit}) . "</span>";
-               }
-               my %co = git_read_commit($commit);
-               my %ad = date_str($co{'author_epoch'});
-               if ($alternate) {
-                       print "<tr class=\"dark\">\n";
-               } else {
-                       print "<tr class=\"light\">\n";
-               }
-               $alternate ^= 1;
-               print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
-                     "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
-                     "<td>";
-               if (length($co{'title_short'}) < length($co{'title'})) {
-                       print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit"), -class => "list", -title => "$co{'title'}"},
-                             "<b>" . esc_html($co{'title_short'}) . "$ref</b>");
-               } else {
-                       print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit"), -class => "list"},
-                             "<b>" . esc_html($co{'title_short'}) . "$ref</b>");
-               }
-               print "</td>\n" .
-                     "<td class=\"link\">" .
-                     $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit")}, "commit") .
-                     " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$commit")}, "commitdiff") .
-                     "</td>\n" .
-                     "</tr>";
-       }
-       if ($#revlist >= (100 * ($page+1)-1)) {
-               print "<tr>\n" .
-                     "<td>" .
-                     $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$hash;pg=" . ($page+1)), -title => "Alt-n"}, "next") .
-                     "</td>\n" .
-                     "</tr>\n";
-       }
-       print "</table\n>";
-       git_footer_html();
-}
index fffdb13d09a40397745861bb6ec5dcc79c798b0d..9013895857b76ea879e58ea90f2885d6744d1127 100644 (file)
@@ -117,9 +117,14 @@ div.list_head {
 
 a.list {
        text-decoration: none;
+       font-weight: bold;
        color: #000000;
 }
 
+table.tags a.list {
+       font-weight: normal;
+}
+
 a.list:hover {
        text-decoration: underline;
        color: #880000;
@@ -171,6 +176,10 @@ tr.dark {
        background-color: #f6f6f0;
 }
 
+tr.dark2 {
+       background-color: #f6f6f0;
+}
+
 tr.dark:hover {
        background-color: #edece6;
 }
@@ -181,12 +190,16 @@ td {
        vertical-align: top;
 }
 
-td.link {
+td.link, td.selflink {
        padding: 2px 5px;
        font-family: sans-serif;
        font-size: 10px;
 }
 
+td.selflink {
+       padding-right: 0px;
+}
+
 td.sha1 {
        font-family: monospace;
 }
@@ -196,6 +209,10 @@ td.error {
        background-color: yellow;
 }
 
+td.current_head {
+       text-decoration: underline;
+}
+
 table.diff_tree span.file_status.new {
        color: #008000;
 }
@@ -209,6 +226,10 @@ table.diff_tree span.file_status.mode_chnge {
        color: #777777;
 }
 
+table.diff_tree span.file_status.copied {
+  color: #70a070;
+}
+
 /* age2: 60*60*24*2 <= age */
 table.project_list td.age2, table.blame td.age2 {
        font-style: italic;
@@ -309,15 +330,30 @@ a.rss_logo:hover {
        background-color: #ee5500;
 }
 
-span.tag {
+span.refs span {
        padding: 0px 4px;
        font-size: 10px;
        font-weight: normal;
-       background-color: #ffffaa;
        border: 1px solid;
+       background-color: #ffaaff;
+       border-color: #ffccff #ff00ee #ff00ee #ffccff;
+}
+
+span.refs span.ref {
+       background-color: #aaaaff;
+       border-color: #ccccff #0033cc #0033cc #ccccff;
+}
+
+span.refs span.tag {
+       background-color: #ffffaa;
        border-color: #ffffcc #ffee00 #ffee00 #ffffcc;
 }
 
+span.refs span.head {
+       background-color: #aaffaa;
+       border-color: #ccffcc #00cc33 #00cc33 #ccffcc;
+}
+
 span.atnight {
        color: #cc0000;
 }
diff --git a/gitweb/gitweb.perl b/gitweb/gitweb.perl
new file mode 100755 (executable)
index 0000000..7c92ac3
--- /dev/null
@@ -0,0 +1,2765 @@
+#!/usr/bin/perl
+
+# gitweb - simple web interface to track changes in git repositories
+#
+# (C) 2005-2006, Kay Sievers <kay.sievers@vrfy.org>
+# (C) 2005, Christian Gierke
+#
+# This program is licensed under the GPLv2
+
+use strict;
+use warnings;
+use CGI qw(:standard :escapeHTML -nosticky);
+use CGI::Util qw(unescape);
+use CGI::Carp qw(fatalsToBrowser);
+use Encode;
+use Fcntl ':mode';
+use File::Find qw();
+binmode STDOUT, ':utf8';
+
+our $cgi = new CGI;
+our $version = "++GIT_VERSION++";
+our $my_url = $cgi->url();
+our $my_uri = $cgi->url(-absolute => 1);
+
+# core git executable to use
+# this can just be "git" if your webserver has a sensible PATH
+our $GIT = "++GIT_BINDIR++/git";
+
+# absolute fs-path which will be prepended to the project path
+#our $projectroot = "/pub/scm";
+our $projectroot = "++GITWEB_PROJECTROOT++";
+
+# location for temporary files needed for diffs
+our $git_temp = "/tmp/gitweb";
+
+# target of the home link on top of all pages
+our $home_link = $my_uri;
+
+# string of the home link on top of all pages
+our $home_link_str = "++GITWEB_HOME_LINK_STR++";
+
+# name of your site or organization to appear in page titles
+# replace this with something more descriptive for clearer bookmarks
+our $site_name = "++GITWEB_SITENAME++" || $ENV{'SERVER_NAME'} || "Untitled";
+
+# html text to include at home page
+our $home_text = "++GITWEB_HOMETEXT++";
+
+# URI of default stylesheet
+our $stylesheet = "++GITWEB_CSS++";
+# URI of GIT logo
+our $logo = "++GITWEB_LOGO++";
+
+# source of projects list
+our $projects_list = "++GITWEB_LIST++";
+
+# list of git base URLs used for URL to where fetch project from,
+# i.e. full URL is "$git_base_url/$project"
+our @git_base_url_list = ("++GITWEB_BASE_URL++");
+
+# default blob_plain mimetype and default charset for text/plain blob
+our $default_blob_plain_mimetype = 'text/plain';
+our $default_text_plain_charset  = undef;
+
+# file to use for guessing MIME types before trying /etc/mime.types
+# (relative to the current git repository)
+our $mimetypes_file = undef;
+
+our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "++GITWEB_CONFIG++";
+require $GITWEB_CONFIG if -e $GITWEB_CONFIG;
+
+# version of the core git binary
+our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
+
+$projects_list ||= $projectroot;
+if (! -d $git_temp) {
+       mkdir($git_temp, 0700) || die_error(undef, "Couldn't mkdir $git_temp");
+}
+
+# ======================================================================
+# input validation and dispatch
+our $action = $cgi->param('a');
+if (defined $action) {
+       if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
+               die_error(undef, "Invalid action parameter");
+       }
+       # action which does not check rest of parameters
+       if ($action eq "opml") {
+               git_opml();
+               exit;
+       }
+}
+
+our $project = ($cgi->param('p') || $ENV{'PATH_INFO'});
+if (defined $project) {
+       $project =~ s|^/||;
+       $project =~ s|/$||;
+}
+if (defined $project && $project) {
+       if (!validate_input($project)) {
+               die_error(undef, "Invalid project parameter");
+       }
+       if (!(-d "$projectroot/$project")) {
+               die_error(undef, "No such directory");
+       }
+       if (!(-e "$projectroot/$project/HEAD")) {
+               die_error(undef, "No such project");
+       }
+       $ENV{'GIT_DIR'} = "$projectroot/$project";
+} else {
+       git_project_list();
+       exit;
+}
+
+our $file_name = $cgi->param('f');
+if (defined $file_name) {
+       if (!validate_input($file_name)) {
+               die_error(undef, "Invalid file parameter");
+       }
+}
+
+our $hash = $cgi->param('h');
+if (defined $hash) {
+       if (!validate_input($hash)) {
+               die_error(undef, "Invalid hash parameter");
+       }
+}
+
+our $hash_parent = $cgi->param('hp');
+if (defined $hash_parent) {
+       if (!validate_input($hash_parent)) {
+               die_error(undef, "Invalid hash parent parameter");
+       }
+}
+
+our $hash_base = $cgi->param('hb');
+if (defined $hash_base) {
+       if (!validate_input($hash_base)) {
+               die_error(undef, "Invalid hash base parameter");
+       }
+}
+
+our $page = $cgi->param('pg');
+if (defined $page) {
+       if ($page =~ m/[^0-9]$/) {
+               die_error(undef, "Invalid page parameter");
+       }
+}
+
+our $searchtext = $cgi->param('s');
+if (defined $searchtext) {
+       if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) {
+               die_error(undef, "Invalid search parameter");
+       }
+       $searchtext = quotemeta $searchtext;
+}
+
+# dispatch
+my %actions = (
+       "blame" => \&git_blame2,
+       "blobdiff" => \&git_blobdiff,
+       "blobdiff_plain" => \&git_blobdiff_plain,
+       "blob" => \&git_blob,
+       "blob_plain" => \&git_blob_plain,
+       "commitdiff" => \&git_commitdiff,
+       "commitdiff_plain" => \&git_commitdiff_plain,
+       "commit" => \&git_commit,
+       "heads" => \&git_heads,
+       "history" => \&git_history,
+       "log" => \&git_log,
+       "rss" => \&git_rss,
+       "search" => \&git_search,
+       "shortlog" => \&git_shortlog,
+       "summary" => \&git_summary,
+       "tag" => \&git_tag,
+       "tags" => \&git_tags,
+       "tree" => \&git_tree,
+);
+
+$action = 'summary' if (!defined($action));
+if (!defined($actions{$action})) {
+       die_error(undef, "Unknown action");
+}
+$actions{$action}->();
+exit;
+
+## ======================================================================
+## action links
+
+sub href(%) {
+       my %mapping = (
+               action => "a",
+               project => "p",
+               file_name => "f",
+               hash => "h",
+               hash_parent => "hp",
+               hash_base => "hb",
+               page => "pg",
+               searchtext => "s",
+       );
+
+       my %params = @_;
+       $params{"project"} ||= $project;
+
+       my $href = "$my_uri?";
+       $href .= esc_param( join(";",
+               map { "$mapping{$_}=$params{$_}" } keys %params
+       ) );
+
+       return $href;
+}
+
+
+## ======================================================================
+## validation, quoting/unquoting and escaping
+
+sub validate_input {
+       my $input = shift;
+
+       if ($input =~ m/^[0-9a-fA-F]{40}$/) {
+               return $input;
+       }
+       if ($input =~ m/(^|\/)(|\.|\.\.)($|\/)/) {
+               return undef;
+       }
+       if ($input =~ m/[^a-zA-Z0-9_\x80-\xff\ \t\.\/\-\+\#\~\%]/) {
+               return undef;
+       }
+       return $input;
+}
+
+# quote unsafe chars, but keep the slash, even when it's not
+# correct, but quoted slashes look too horrible in bookmarks
+sub esc_param {
+       my $str = shift;
+       $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
+       $str =~ s/\+/%2B/g;
+       $str =~ s/ /\+/g;
+       return $str;
+}
+
+# replace invalid utf8 character with SUBSTITUTION sequence
+sub esc_html {
+       my $str = shift;
+       $str = decode("utf8", $str, Encode::FB_DEFAULT);
+       $str = escapeHTML($str);
+       $str =~ s/\014/^L/g; # escape FORM FEED (FF) character (e.g. in COPYING file)
+       return $str;
+}
+
+# git may return quoted and escaped filenames
+sub unquote {
+       my $str = shift;
+       if ($str =~ m/^"(.*)"$/) {
+               $str = $1;
+               $str =~ s/\\([0-7]{1,3})/chr(oct($1))/eg;
+       }
+       return $str;
+}
+
+# escape tabs (convert tabs to spaces)
+sub untabify {
+       my $line = shift;
+
+       while ((my $pos = index($line, "\t")) != -1) {
+               if (my $count = (8 - ($pos % 8))) {
+                       my $spaces = ' ' x $count;
+                       $line =~ s/\t/$spaces/;
+               }
+       }
+
+       return $line;
+}
+
+## ----------------------------------------------------------------------
+## HTML aware string manipulation
+
+sub chop_str {
+       my $str = shift;
+       my $len = shift;
+       my $add_len = shift || 10;
+
+       # allow only $len chars, but don't cut a word if it would fit in $add_len
+       # if it doesn't fit, cut it if it's still longer than the dots we would add
+       $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
+       my $body = $1;
+       my $tail = $2;
+       if (length($tail) > 4) {
+               $tail = " ...";
+               $body =~ s/&[^;]*$//; # remove chopped character entities
+       }
+       return "$body$tail";
+}
+
+## ----------------------------------------------------------------------
+## functions returning short strings
+
+# CSS class for given age value (in seconds)
+sub age_class {
+       my $age = shift;
+
+       if ($age < 60*60*2) {
+               return "age0";
+       } elsif ($age < 60*60*24*2) {
+               return "age1";
+       } else {
+               return "age2";
+       }
+}
+
+# convert age in seconds to "nn units ago" string
+sub age_string {
+       my $age = shift;
+       my $age_str;
+
+       if ($age > 60*60*24*365*2) {
+               $age_str = (int $age/60/60/24/365);
+               $age_str .= " years ago";
+       } elsif ($age > 60*60*24*(365/12)*2) {
+               $age_str = int $age/60/60/24/(365/12);
+               $age_str .= " months ago";
+       } elsif ($age > 60*60*24*7*2) {
+               $age_str = int $age/60/60/24/7;
+               $age_str .= " weeks ago";
+       } elsif ($age > 60*60*24*2) {
+               $age_str = int $age/60/60/24;
+               $age_str .= " days ago";
+       } elsif ($age > 60*60*2) {
+               $age_str = int $age/60/60;
+               $age_str .= " hours ago";
+       } elsif ($age > 60*2) {
+               $age_str = int $age/60;
+               $age_str .= " min ago";
+       } elsif ($age > 2) {
+               $age_str = int $age;
+               $age_str .= " sec ago";
+       } else {
+               $age_str .= " right now";
+       }
+       return $age_str;
+}
+
+# convert file mode in octal to symbolic file mode string
+sub mode_str {
+       my $mode = oct shift;
+
+       if (S_ISDIR($mode & S_IFMT)) {
+               return 'drwxr-xr-x';
+       } elsif (S_ISLNK($mode)) {
+               return 'lrwxrwxrwx';
+       } elsif (S_ISREG($mode)) {
+               # git cares only about the executable bit
+               if ($mode & S_IXUSR) {
+                       return '-rwxr-xr-x';
+               } else {
+                       return '-rw-r--r--';
+               };
+       } else {
+               return '----------';
+       }
+}
+
+# convert file mode in octal to file type string
+sub file_type {
+       my $mode = oct shift;
+
+       if (S_ISDIR($mode & S_IFMT)) {
+               return "directory";
+       } elsif (S_ISLNK($mode)) {
+               return "symlink";
+       } elsif (S_ISREG($mode)) {
+               return "file";
+       } else {
+               return "unknown";
+       }
+}
+
+## ----------------------------------------------------------------------
+## functions returning short HTML fragments, or transforming HTML fragments
+## which don't beling to other sections
+
+# format line of commit message or tag comment
+sub format_log_line_html {
+       my $line = shift;
+
+       $line = esc_html($line);
+       $line =~ s/ /&nbsp;/g;
+       if ($line =~ m/([0-9a-fA-F]{40})/) {
+               my $hash_text = $1;
+               if (git_get_type($hash_text) eq "commit") {
+                       my $link = $cgi->a({-class => "text", -href => href(action=>"commit", hash=>$hash_text)}, $hash_text);
+                       $line =~ s/$hash_text/$link/;
+               }
+       }
+       return $line;
+}
+
+# format marker of refs pointing to given object
+sub format_ref_marker {
+       my ($refs, $id) = @_;
+       my $markers = '';
+
+       if (defined $refs->{$id}) {
+               foreach my $ref (@{$refs->{$id}}) {
+                       my ($type, $name) = qw();
+                       # e.g. tags/v2.6.11 or heads/next
+                       if ($ref =~ m!^(.*?)s?/(.*)$!) {
+                               $type = $1;
+                               $name = $2;
+                       } else {
+                               $type = "ref";
+                               $name = $ref;
+                       }
+
+                       $markers .= " <span class=\"$type\">" . esc_html($name) . "</span>";
+               }
+       }
+
+       if ($markers) {
+               return ' <span class="refs">'. $markers . '</span>';
+       } else {
+               return "";
+       }
+}
+
+# format, perhaps shortened and with markers, title line
+sub format_subject_html {
+       my ($long, $short, $href, $extra) = @_;
+       $extra = '' unless defined($extra);
+
+       if (length($short) < length($long)) {
+               return $cgi->a({-href => $href, -class => "list",
+                               -title => $long},
+                      esc_html($short) . $extra);
+       } else {
+               return $cgi->a({-href => $href, -class => "list"},
+                      esc_html($long)  . $extra);
+       }
+}
+
+## ----------------------------------------------------------------------
+## git utility subroutines, invoking git commands
+
+# get HEAD ref of given project as hash
+sub git_get_head_hash {
+       my $project = shift;
+       my $oENV = $ENV{'GIT_DIR'};
+       my $retval = undef;
+       $ENV{'GIT_DIR'} = "$projectroot/$project";
+       if (open my $fd, "-|", $GIT, "rev-parse", "--verify", "HEAD") {
+               my $head = <$fd>;
+               close $fd;
+               if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
+                       $retval = $1;
+               }
+       }
+       if (defined $oENV) {
+               $ENV{'GIT_DIR'} = $oENV;
+       }
+       return $retval;
+}
+
+# get type of given object
+sub git_get_type {
+       my $hash = shift;
+
+       open my $fd, "-|", $GIT, "cat-file", '-t', $hash or return;
+       my $type = <$fd>;
+       close $fd or return;
+       chomp $type;
+       return $type;
+}
+
+sub git_get_project_config {
+       my $key = shift;
+
+       return unless ($key);
+       $key =~ s/^gitweb\.//;
+       return if ($key =~ m/\W/);
+
+       my $val = qx($GIT repo-config --get gitweb.$key);
+       return ($val);
+}
+
+sub git_get_project_config_bool {
+       my $val = git_get_project_config (@_);
+       if ($val and $val =~ m/true|yes|on/) {
+               return (1);
+       }
+       return; # implicit false
+}
+
+# get hash of given path at given ref
+sub git_get_hash_by_path {
+       my $base = shift;
+       my $path = shift || return undef;
+
+       my $tree = $base;
+
+       open my $fd, "-|", $GIT, "ls-tree", $base, "--", $path
+               or die_error(undef, "Open git-ls-tree failed");
+       my $line = <$fd>;
+       close $fd or return undef;
+
+       #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
+       $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
+       return $3;
+}
+
+## ......................................................................
+## git utility functions, directly accessing git repository
+
+# assumes that PATH is not symref
+sub git_get_hash_by_ref {
+       my $path = shift;
+
+       open my $fd, "$projectroot/$path" or return undef;
+       my $head = <$fd>;
+       close $fd;
+       chomp $head;
+       if ($head =~ m/^[0-9a-fA-F]{40}$/) {
+               return $head;
+       }
+}
+
+sub git_get_project_description {
+       my $path = shift;
+
+       open my $fd, "$projectroot/$path/description" or return undef;
+       my $descr = <$fd>;
+       close $fd;
+       chomp $descr;
+       return $descr;
+}
+
+sub git_get_project_url_list {
+       my $path = shift;
+
+       open my $fd, "$projectroot/$path/cloneurl" or return undef;
+       my @git_project_url_list = map { chomp; $_ } <$fd>;
+       close $fd;
+
+       return wantarray ? @git_project_url_list : \@git_project_url_list;
+}
+
+sub git_get_projects_list {
+       my @list;
+
+       if (-d $projects_list) {
+               # search in directory
+               my $dir = $projects_list;
+               opendir my ($dh), $dir or return undef;
+               while (my $dir = readdir($dh)) {
+                       if (-e "$projectroot/$dir/HEAD") {
+                               my $pr = {
+                                       path => $dir,
+                               };
+                               push @list, $pr
+                       }
+               }
+               closedir($dh);
+       } elsif (-f $projects_list) {
+               # read from file(url-encoded):
+               # 'git%2Fgit.git Linus+Torvalds'
+               # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
+               # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
+               open my ($fd), $projects_list or return undef;
+               while (my $line = <$fd>) {
+                       chomp $line;
+                       my ($path, $owner) = split ' ', $line;
+                       $path = unescape($path);
+                       $owner = unescape($owner);
+                       if (!defined $path) {
+                               next;
+                       }
+                       if (-e "$projectroot/$path/HEAD") {
+                               my $pr = {
+                                       path => $path,
+                                       owner => decode("utf8", $owner, Encode::FB_DEFAULT),
+                               };
+                               push @list, $pr
+                       }
+               }
+               close $fd;
+       }
+       @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
+       return @list;
+}
+
+sub git_get_project_owner {
+       my $project = shift;
+       my $owner;
+
+       return undef unless $project;
+
+       # read from file (url-encoded):
+       # 'git%2Fgit.git Linus+Torvalds'
+       # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
+       # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
+       if (-f $projects_list) {
+               open (my $fd , $projects_list);
+               while (my $line = <$fd>) {
+                       chomp $line;
+                       my ($pr, $ow) = split ' ', $line;
+                       $pr = unescape($pr);
+                       $ow = unescape($ow);
+                       if ($pr eq $project) {
+                               $owner = decode("utf8", $ow, Encode::FB_DEFAULT);
+                               last;
+                       }
+               }
+               close $fd;
+       }
+       if (!defined $owner) {
+               $owner = get_file_owner("$projectroot/$project");
+       }
+
+       return $owner;
+}
+
+sub git_get_references {
+       my $type = shift || "";
+       my %refs;
+       my $fd;
+       # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c      refs/tags/v2.6.11
+       # c39ae07f393806ccf406ef966e9a15afc43cc36a      refs/tags/v2.6.11^{}
+       if (-f "$projectroot/$project/info/refs") {
+               open $fd, "$projectroot/$project/info/refs"
+                       or return;
+       } else {
+               open $fd, "-|", $GIT, "ls-remote", "."
+                       or return;
+       }
+
+       while (my $line = <$fd>) {
+               chomp $line;
+               if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?[^\^]+)/) {
+                       if (defined $refs{$1}) {
+                               push @{$refs{$1}}, $2;
+                       } else {
+                               $refs{$1} = [ $2 ];
+                       }
+               }
+       }
+       close $fd or return;
+       return \%refs;
+}
+
+## ----------------------------------------------------------------------
+## parse to hash functions
+
+sub parse_date {
+       my $epoch = shift;
+       my $tz = shift || "-0000";
+
+       my %date;
+       my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
+       my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
+       my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
+       $date{'hour'} = $hour;
+       $date{'minute'} = $min;
+       $date{'mday'} = $mday;
+       $date{'day'} = $days[$wday];
+       $date{'month'} = $months[$mon];
+       $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000", $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
+       $date{'mday-time'} = sprintf "%d %s %02d:%02d", $mday, $months[$mon], $hour ,$min;
+
+       $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
+       my $local = $epoch + ((int $1 + ($2/60)) * 3600);
+       ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
+       $date{'hour_local'} = $hour;
+       $date{'minute_local'} = $min;
+       $date{'tz_local'} = $tz;
+       return %date;
+}
+
+sub parse_tag {
+       my $tag_id = shift;
+       my %tag;
+       my @comment;
+
+       open my $fd, "-|", $GIT, "cat-file", "tag", $tag_id or return;
+       $tag{'id'} = $tag_id;
+       while (my $line = <$fd>) {
+               chomp $line;
+               if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
+                       $tag{'object'} = $1;
+               } elsif ($line =~ m/^type (.+)$/) {
+                       $tag{'type'} = $1;
+               } elsif ($line =~ m/^tag (.+)$/) {
+                       $tag{'name'} = $1;
+               } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
+                       $tag{'author'} = $1;
+                       $tag{'epoch'} = $2;
+                       $tag{'tz'} = $3;
+               } elsif ($line =~ m/--BEGIN/) {
+                       push @comment, $line;
+                       last;
+               } elsif ($line eq "") {
+                       last;
+               }
+       }
+       push @comment, <$fd>;
+       $tag{'comment'} = \@comment;
+       close $fd or return;
+       if (!defined $tag{'name'}) {
+               return
+       };
+       return %tag
+}
+
+sub parse_commit {
+       my $commit_id = shift;
+       my $commit_text = shift;
+
+       my @commit_lines;
+       my %co;
+
+       if (defined $commit_text) {
+               @commit_lines = @$commit_text;
+       } else {
+               $/ = "\0";
+               open my $fd, "-|", $GIT, "rev-list", "--header", "--parents", "--max-count=1", $commit_id or return;
+               @commit_lines = split '\n', <$fd>;
+               close $fd or return;
+               $/ = "\n";
+               pop @commit_lines;
+       }
+       my $header = shift @commit_lines;
+       if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
+               return;
+       }
+       ($co{'id'}, my @parents) = split ' ', $header;
+       $co{'parents'} = \@parents;
+       $co{'parent'} = $parents[0];
+       while (my $line = shift @commit_lines) {
+               last if $line eq "\n";
+               if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
+                       $co{'tree'} = $1;
+               } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
+                       $co{'author'} = $1;
+                       $co{'author_epoch'} = $2;
+                       $co{'author_tz'} = $3;
+                       if ($co{'author'} =~ m/^([^<]+) </) {
+                               $co{'author_name'} = $1;
+                       } else {
+                               $co{'author_name'} = $co{'author'};
+                       }
+               } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
+                       $co{'committer'} = $1;
+                       $co{'committer_epoch'} = $2;
+                       $co{'committer_tz'} = $3;
+                       $co{'committer_name'} = $co{'committer'};
+                       $co{'committer_name'} =~ s/ <.*//;
+               }
+       }
+       if (!defined $co{'tree'}) {
+               return;
+       };
+
+       foreach my $title (@commit_lines) {
+               $title =~ s/^    //;
+               if ($title ne "") {
+                       $co{'title'} = chop_str($title, 80, 5);
+                       # remove leading stuff of merges to make the interesting part visible
+                       if (length($title) > 50) {
+                               $title =~ s/^Automatic //;
+                               $title =~ s/^merge (of|with) /Merge ... /i;
+                               if (length($title) > 50) {
+                                       $title =~ s/(http|rsync):\/\///;
+                               }
+                               if (length($title) > 50) {
+                                       $title =~ s/(master|www|rsync)\.//;
+                               }
+                               if (length($title) > 50) {
+                                       $title =~ s/kernel.org:?//;
+                               }
+                               if (length($title) > 50) {
+                                       $title =~ s/\/pub\/scm//;
+                               }
+                       }
+                       $co{'title_short'} = chop_str($title, 50, 5);
+                       last;
+               }
+       }
+       # remove added spaces
+       foreach my $line (@commit_lines) {
+               $line =~ s/^    //;
+       }
+       $co{'comment'} = \@commit_lines;
+
+       my $age = time - $co{'committer_epoch'};
+       $co{'age'} = $age;
+       $co{'age_string'} = age_string($age);
+       my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
+       if ($age > 60*60*24*7*2) {
+               $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
+               $co{'age_string_age'} = $co{'age_string'};
+       } else {
+               $co{'age_string_date'} = $co{'age_string'};
+               $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
+       }
+       return %co;
+}
+
+# parse ref from ref_file, given by ref_id, with given type
+sub parse_ref {
+       my $ref_file = shift;
+       my $ref_id = shift;
+       my $type = shift || git_get_type($ref_id);
+       my %ref_item;
+
+       $ref_item{'type'} = $type;
+       $ref_item{'id'} = $ref_id;
+       $ref_item{'epoch'} = 0;
+       $ref_item{'age'} = "unknown";
+       if ($type eq "tag") {
+               my %tag = parse_tag($ref_id);
+               $ref_item{'comment'} = $tag{'comment'};
+               if ($tag{'type'} eq "commit") {
+                       my %co = parse_commit($tag{'object'});
+                       $ref_item{'epoch'} = $co{'committer_epoch'};
+                       $ref_item{'age'} = $co{'age_string'};
+               } elsif (defined($tag{'epoch'})) {
+                       my $age = time - $tag{'epoch'};
+                       $ref_item{'epoch'} = $tag{'epoch'};
+                       $ref_item{'age'} = age_string($age);
+               }
+               $ref_item{'reftype'} = $tag{'type'};
+               $ref_item{'name'} = $tag{'name'};
+               $ref_item{'refid'} = $tag{'object'};
+       } elsif ($type eq "commit"){
+               my %co = parse_commit($ref_id);
+               $ref_item{'reftype'} = "commit";
+               $ref_item{'name'} = $ref_file;
+               $ref_item{'title'} = $co{'title'};
+               $ref_item{'refid'} = $ref_id;
+               $ref_item{'epoch'} = $co{'committer_epoch'};
+               $ref_item{'age'} = $co{'age_string'};
+       } else {
+               $ref_item{'reftype'} = $type;
+               $ref_item{'name'} = $ref_file;
+               $ref_item{'refid'} = $ref_id;
+       }
+
+       return %ref_item;
+}
+
+## ......................................................................
+## parse to array of hashes functions
+
+sub git_get_refs_list {
+       my $ref_dir = shift;
+       my @reflist;
+
+       my @refs;
+       my $pfxlen = length("$projectroot/$project/$ref_dir");
+       File::Find::find(sub {
+               return if (/^\./);
+               if (-f $_) {
+                       push @refs, substr($File::Find::name, $pfxlen + 1);
+               }
+       }, "$projectroot/$project/$ref_dir");
+
+       foreach my $ref_file (@refs) {
+               my $ref_id = git_get_hash_by_ref("$project/$ref_dir/$ref_file");
+               my $type = git_get_type($ref_id) || next;
+               my %ref_item = parse_ref($ref_file, $ref_id, $type);
+
+               push @reflist, \%ref_item;
+       }
+       # sort refs by age
+       @reflist = sort {$b->{'epoch'} <=> $a->{'epoch'}} @reflist;
+       return \@reflist;
+}
+
+## ----------------------------------------------------------------------
+## filesystem-related functions
+
+sub get_file_owner {
+       my $path = shift;
+
+       my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
+       my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
+       if (!defined $gcos) {
+               return undef;
+       }
+       my $owner = $gcos;
+       $owner =~ s/[,;].*$//;
+       return decode("utf8", $owner, Encode::FB_DEFAULT);
+}
+
+## ......................................................................
+## mimetype related functions
+
+sub mimetype_guess_file {
+       my $filename = shift;
+       my $mimemap = shift;
+       -r $mimemap or return undef;
+
+       my %mimemap;
+       open(MIME, $mimemap) or return undef;
+       while (<MIME>) {
+               next if m/^#/; # skip comments
+               my ($mime, $exts) = split(/\t+/);
+               if (defined $exts) {
+                       my @exts = split(/\s+/, $exts);
+                       foreach my $ext (@exts) {
+                               $mimemap{$ext} = $mime;
+                       }
+               }
+       }
+       close(MIME);
+
+       $filename =~ /\.(.*?)$/;
+       return $mimemap{$1};
+}
+
+sub mimetype_guess {
+       my $filename = shift;
+       my $mime;
+       $filename =~ /\./ or return undef;
+
+       if ($mimetypes_file) {
+               my $file = $mimetypes_file;
+               if ($file !~ m!^/!) { # if it is relative path
+                       # it is relative to project
+                       $file = "$projectroot/$project/$file";
+               }
+               $mime = mimetype_guess_file($filename, $file);
+       }
+       $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
+       return $mime;
+}
+
+sub blob_mimetype {
+       my $fd = shift;
+       my $filename = shift;
+
+       if ($filename) {
+               my $mime = mimetype_guess($filename);
+               $mime and return $mime;
+       }
+
+       # just in case
+       return $default_blob_plain_mimetype unless $fd;
+
+       if (-T $fd) {
+               return 'text/plain' .
+                      ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
+       } elsif (! $filename) {
+               return 'application/octet-stream';
+       } elsif ($filename =~ m/\.png$/i) {
+               return 'image/png';
+       } elsif ($filename =~ m/\.gif$/i) {
+               return 'image/gif';
+       } elsif ($filename =~ m/\.jpe?g$/i) {
+               return 'image/jpeg';
+       } else {
+               return 'application/octet-stream';
+       }
+}
+
+## ======================================================================
+## functions printing HTML: header, footer, error page
+
+sub git_header_html {
+       my $status = shift || "200 OK";
+       my $expires = shift;
+
+       my $title = "$site_name git";
+       if (defined $project) {
+               $title .= " - $project";
+               if (defined $action) {
+                       $title .= "/$action";
+                       if (defined $file_name) {
+                               $title .= " - $file_name";
+                               if ($action eq "tree" && $file_name !~ m|/$|) {
+                                       $title .= "/";
+                               }
+                       }
+               }
+       }
+       my $content_type;
+       # require explicit support from the UA if we are to send the page as
+       # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
+       # we have to do this because MSIE sometimes globs '*/*', pretending to
+       # support xhtml+xml but choking when it gets what it asked for.
+       if (defined $cgi->http('HTTP_ACCEPT') && $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ && $cgi->Accept('application/xhtml+xml') != 0) {
+               $content_type = 'application/xhtml+xml';
+       } else {
+               $content_type = 'text/html';
+       }
+       print $cgi->header(-type=>$content_type, -charset => 'utf-8', -status=> $status, -expires => $expires);
+       print <<EOF;
+<?xml version="1.0" encoding="utf-8"?>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
+<!-- git web interface v$version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
+<!-- git core binaries version $git_version -->
+<head>
+<meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
+<meta name="robots" content="index, nofollow"/>
+<title>$title</title>
+<link rel="stylesheet" type="text/css" href="$stylesheet"/>
+EOF
+       if (defined $project) {
+               printf('<link rel="alternate" title="%s log" '.
+                      'href="%s" type="application/rss+xml"/>'."\n",
+                      esc_param($project), href(action=>"rss"));
+       }
+
+       print "</head>\n" .
+             "<body>\n" .
+             "<div class=\"page_header\">\n" .
+             "<a href=\"http://www.kernel.org/pub/software/scm/git/docs/\" title=\"git documentation\">" .
+             "<img src=\"$logo\" width=\"72\" height=\"27\" alt=\"git\" style=\"float:right; border-width:0px;\"/>" .
+             "</a>\n";
+       print $cgi->a({-href => esc_param($home_link)}, $home_link_str) . " / ";
+       if (defined $project) {
+               print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
+               if (defined $action) {
+                       print " / $action";
+               }
+               print "\n";
+               if (!defined $searchtext) {
+                       $searchtext = "";
+               }
+               my $search_hash;
+               if (defined $hash_base) {
+                       $search_hash = $hash_base;
+               } elsif (defined $hash) {
+                       $search_hash = $hash;
+               } else {
+                       $search_hash = "HEAD";
+               }
+               $cgi->param("a", "search");
+               $cgi->param("h", $search_hash);
+               print $cgi->startform(-method => "get", -action => $my_uri) .
+                     "<div class=\"search\">\n" .
+                     $cgi->hidden(-name => "p") . "\n" .
+                     $cgi->hidden(-name => "a") . "\n" .
+                     $cgi->hidden(-name => "h") . "\n" .
+                     $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
+                     "</div>" .
+                     $cgi->end_form() . "\n";
+       }
+       print "</div>\n";
+}
+
+sub git_footer_html {
+       print "<div class=\"page_footer\">\n";
+       if (defined $project) {
+               my $descr = git_get_project_description($project);
+               if (defined $descr) {
+                       print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
+               }
+               print $cgi->a({-href => href(action=>"rss"), -class => "rss_logo"}, "RSS") . "\n";
+       } else {
+               print $cgi->a({-href => "$my_uri?" . esc_param("a=opml"), -class => "rss_logo"}, "OPML") . "\n";
+       }
+       print "</div>\n" .
+             "</body>\n" .
+             "</html>";
+}
+
+sub die_error {
+       my $status = shift || "403 Forbidden";
+       my $error = shift || "Malformed query, file missing or permission denied";
+
+       git_header_html($status);
+       print "<div class=\"page_body\">\n" .
+             "<br/><br/>\n" .
+             "$status - $error\n" .
+             "<br/>\n" .
+             "</div>\n";
+       git_footer_html();
+       exit;
+}
+
+## ----------------------------------------------------------------------
+## functions printing or outputting HTML: navigation
+
+sub git_print_page_nav {
+       my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
+       $extra = '' if !defined $extra; # pager or formats
+
+       my @navs = qw(summary shortlog log commit commitdiff tree);
+       if ($suppress) {
+               @navs = grep { $_ ne $suppress } @navs;
+       }
+
+       my %arg = map { $_ => {action=>$_} } @navs;
+       if (defined $head) {
+               for (qw(commit commitdiff)) {
+                       $arg{$_}{hash} = $head;
+               }
+               if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
+                       for (qw(shortlog log)) {
+                               $arg{$_}{hash} = $head;
+                       }
+               }
+       }
+       $arg{tree}{hash} = $treehead if defined $treehead;
+       $arg{tree}{hash_base} = $treebase if defined $treebase;
+
+       print "<div class=\"page_nav\">\n" .
+               (join " | ",
+                map { $_ eq $current ?
+                      $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
+                } @navs);
+       print "<br/>\n$extra<br/>\n" .
+             "</div>\n";
+}
+
+sub format_paging_nav {
+       my ($action, $hash, $head, $page, $nrevs) = @_;
+       my $paging_nav;
+
+
+       if ($hash ne $head || $page) {
+               $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
+       } else {
+               $paging_nav .= "HEAD";
+       }
+
+       if ($page > 0) {
+               $paging_nav .= " &sdot; " .
+                       $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page-1),
+                                -accesskey => "p", -title => "Alt-p"}, "prev");
+       } else {
+               $paging_nav .= " &sdot; prev";
+       }
+
+       if ($nrevs >= (100 * ($page+1)-1)) {
+               $paging_nav .= " &sdot; " .
+                       $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page+1),
+                                -accesskey => "n", -title => "Alt-n"}, "next");
+       } else {
+               $paging_nav .= " &sdot; next";
+       }
+
+       return $paging_nav;
+}
+
+## ......................................................................
+## functions printing or outputting HTML: div
+
+sub git_print_header_div {
+       my ($action, $title, $hash, $hash_base) = @_;
+       my %args = ();
+
+       $args{action} = $action;
+       $args{hash} = $hash if $hash;
+       $args{hash_base} = $hash_base if $hash_base;
+
+       print "<div class=\"header\">\n" .
+             $cgi->a({-href => href(%args), -class => "title"},
+             $title ? $title : $action) .
+             "\n</div>\n";
+}
+
+sub git_print_page_path {
+       my $name = shift;
+       my $type = shift;
+
+       if (!defined $name) {
+               print "<div class=\"page_path\"><b>/</b></div>\n";
+       } elsif (defined $type && $type eq 'blob') {
+               print "<div class=\"page_path\"><b>" .
+                       $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name)}, esc_html($name)) . "</b><br/></div>\n";
+       } else {
+               print "<div class=\"page_path\"><b>" . esc_html($name) . "</b><br/></div>\n";
+       }
+}
+
+## ......................................................................
+## functions printing large fragments of HTML
+
+sub git_difftree_body {
+       my ($difftree, $parent) = @_;
+
+       print "<div class=\"list_head\">\n";
+       if ($#{$difftree} > 10) {
+               print(($#{$difftree} + 1) . " files changed:\n");
+       }
+       print "</div>\n";
+
+       print "<table class=\"diff_tree\">\n";
+       my $alternate = 0;
+       foreach my $line (@{$difftree}) {
+               # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
+               # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
+               if ($line !~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
+                       next;
+               }
+               my $from_mode = $1;
+               my $to_mode = $2;
+               my $from_id = $3;
+               my $to_id = $4;
+               my $status = $5;
+               my $similarity = $6; # score
+               my $file = validate_input(unquote($7));
+
+               if ($alternate) {
+                       print "<tr class=\"dark\">\n";
+               } else {
+                       print "<tr class=\"light\">\n";
+               }
+               $alternate ^= 1;
+
+               if ($status eq "A") { # created
+                       my $mode_chng = "";
+                       if (S_ISREG(oct $to_mode)) {
+                               $mode_chng = sprintf(" with mode: %04o", (oct $to_mode) & 0777);
+                       }
+                       print "<td>" .
+                             $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$file),
+                                     -class => "list"}, esc_html($file)) .
+                             "</td>\n" .
+                             "<td><span class=\"file_status new\">[new " . file_type($to_mode) . "$mode_chng]</span></td>\n" .
+                             "<td class=\"link\">" .
+                             $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$file)}, "blob") .
+                             "</td>\n";
+
+               } elsif ($status eq "D") { # deleted
+                       print "<td>" .
+                             $cgi->a({-href => href(action=>"blob", hash=>$from_id, hash_base=>$parent, file_name=>$file),
+                                      -class => "list"}, esc_html($file)) . "</td>\n" .
+                             "<td><span class=\"file_status deleted\">[deleted " . file_type($from_mode). "]</span></td>\n" .
+                             "<td class=\"link\">" .
+                             $cgi->a({-href => href(action=>"blob", hash=>$from_id, hash_base=>$parent, file_name=>$file)}, "blob") . " | " .
+                             $cgi->a({-href => href(action=>"history", hash_base=>$parent, file_name=>$file)}, "history") .
+                             "</td>\n"
+
+               } elsif ($status eq "M" || $status eq "T") { # modified, or type changed
+                       my $mode_chnge = "";
+                       if ($from_mode != $to_mode) {
+                               $mode_chnge = " <span class=\"file_status mode_chnge\">[changed";
+                               if (((oct $from_mode) & S_IFMT) != ((oct $to_mode) & S_IFMT)) {
+                                       $mode_chnge .= " from " . file_type($from_mode) . " to " . file_type($to_mode);
+                               }
+                               if (((oct $from_mode) & 0777) != ((oct $to_mode) & 0777)) {
+                                       if (S_ISREG($from_mode) && S_ISREG($to_mode)) {
+                                               $mode_chnge .= sprintf(" mode: %04o->%04o", (oct $from_mode) & 0777, (oct $to_mode) & 0777);
+                                       } elsif (S_ISREG($to_mode)) {
+                                               $mode_chnge .= sprintf(" mode: %04o", (oct $to_mode) & 0777);
+                                       }
+                               }
+                               $mode_chnge .= "]</span>\n";
+                       }
+                       print "<td>";
+                       if ($to_id ne $from_id) { # modified
+                               print $cgi->a({-href => href(action=>"blobdiff", hash=>$to_id, hash_parent=>$from_id, hash_base=>$hash, file_name=>$file),
+                                             -class => "list"}, esc_html($file));
+                       } else { # mode changed
+                               print $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$file),
+                                             -class => "list"}, esc_html($file));
+                       }
+                       print "</td>\n" .
+                             "<td>$mode_chnge</td>\n" .
+                             "<td class=\"link\">" .
+                               $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$file)}, "blob");
+                       if ($to_id ne $from_id) { # modified
+                               print $cgi->a({-href => href(action=>"blobdiff", hash=>$to_id, hash_parent=>$from_id, hash_base=>$hash, file_name=>$file)}, "diff");
+                       }
+                       print " | " . $cgi->a({-href => href(action=>"history", hash_base=>$hash, file_name=>$file)}, "history") . "\n";
+                       print "</td>\n";
+
+               } elsif ($status eq "R") { # renamed
+                       my ($from_file, $to_file) = split "\t", $file;
+                       my $mode_chng = "";
+                       if ($from_mode != $to_mode) {
+                               $mode_chng = sprintf(", mode: %04o", (oct $to_mode) & 0777);
+                       }
+                       print "<td>" .
+                             $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$to_file),
+                                     -class => "list"}, esc_html($to_file)) . "</td>\n" .
+                             "<td><span class=\"file_status moved\">[moved from " .
+                             $cgi->a({-href => href(action=>"blob", hash=>$from_id, hash_base=>$parent, file_name=>$from_file),
+                                     -class => "list"}, esc_html($from_file)) .
+                             " with " . (int $similarity) . "% similarity$mode_chng]</span></td>\n" .
+                             "<td class=\"link\">" .
+                             $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$to_file)}, "blob");
+                       if ($to_id ne $from_id) {
+                               print " | " .
+                                     $cgi->a({-href => "$my_uri?" .
+                                             esc_param("p=$project;a=blobdiff;h=$to_id;hp=$from_id;hb=$hash;f=$to_file;fp=$from_file")}, "diff");
+                       }
+                       print "</td>\n";
+
+               } elsif ($status eq "C") { # copied
+                       my ($from_file, $to_file) = split "\t", $file;
+                       my $mode_chng = "";
+                       if ($from_mode != $to_mode) {
+                               $mode_chng = sprintf(", mode: %04o", (oct $to_mode) & 0777);
+                       }
+                       print "<td>" .
+                             $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$to_file),
+                                     -class => "list"}, esc_html($to_file)) . "</td>\n" .
+                             "<td><span class=\"file_status copied\">[copied from " .
+                             $cgi->a({-href => href(action=>"blob", hash=>$from_id, hash_base=>$parent, file_name=>$from_file),
+                                     -class => "list"}, esc_html($from_file)) .
+                             " with " . (int $similarity) . "% similarity$mode_chng]</span></td>\n" .
+                             "<td class=\"link\">" .
+                             $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$to_file)}, "blob");
+                       if ($to_id ne $from_id) {
+                               print " | " .
+                                     $cgi->a({-href => "$my_uri?" .
+                                             esc_param("p=$project;a=blobdiff;h=$to_id;hp=$from_id;hb=$hash;f=$to_file;fp=$from_file")}, "diff");
+                       }
+                       print "</td>\n";
+               } # we should not encounter Unmerged (U) or Unknown (X) status
+               print "</tr>\n";
+       }
+       print "</table>\n";
+}
+
+sub git_shortlog_body {
+       # uses global variable $project
+       my ($revlist, $from, $to, $refs, $extra) = @_;
+       $from = 0 unless defined $from;
+       $to = $#{$revlist} if (!defined $to || $#{$revlist} < $to);
+
+       print "<table class=\"shortlog\" cellspacing=\"0\">\n";
+       my $alternate = 0;
+       for (my $i = $from; $i <= $to; $i++) {
+               my $commit = $revlist->[$i];
+               #my $ref = defined $refs ? format_ref_marker($refs, $commit) : '';
+               my $ref = format_ref_marker($refs, $commit);
+               my %co = parse_commit($commit);
+               if ($alternate) {
+                       print "<tr class=\"dark\">\n";
+               } else {
+                       print "<tr class=\"light\">\n";
+               }
+               $alternate ^= 1;
+               # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
+               print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
+                     "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
+                     "<td>";
+               print format_subject_html($co{'title'}, $co{'title_short'}, href(action=>"commit", hash=>$commit), $ref);
+               print "</td>\n" .
+                     "<td class=\"link\">" .
+                     $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
+                     $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
+                     "</td>\n" .
+                     "</tr>\n";
+       }
+       if (defined $extra) {
+               print "<tr>\n" .
+                     "<td colspan=\"4\">$extra</td>\n" .
+                     "</tr>\n";
+       }
+       print "</table>\n";
+}
+
+sub git_history_body {
+       # Warning: assumes constant type (blob or tree) during history
+       my ($fd, $refs, $hash_base, $ftype, $extra) = @_;
+
+       print "<table class=\"history\" cellspacing=\"0\">\n";
+       my $alternate = 0;
+       while (my $line = <$fd>) {
+               if ($line !~ m/^([0-9a-fA-F]{40})/) {
+                       next;
+               }
+
+               my $commit = $1;
+               my %co = parse_commit($commit);
+               if (!%co) {
+                       next;
+               }
+
+               my $ref = format_ref_marker($refs, $commit);
+
+               if ($alternate) {
+                       print "<tr class=\"dark\">\n";
+               } else {
+                       print "<tr class=\"light\">\n";
+               }
+               $alternate ^= 1;
+               print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
+                     # shortlog uses      chop_str($co{'author_name'}, 10)
+                     "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
+                     "<td>";
+               # originally git_history used chop_str($co{'title'}, 50)
+               print format_subject_html($co{'title'}, $co{'title_short'}, href(action=>"commit", hash=>$commit), $ref);
+               print "</td>\n" .
+                     "<td class=\"link\">" .
+                     $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
+                     $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
+                     $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype);
+
+               if ($ftype eq 'blob') {
+                       my $blob_current = git_get_hash_by_path($hash_base, $file_name);
+                       my $blob_parent  = git_get_hash_by_path($commit, $file_name);
+                       if (defined $blob_current && defined $blob_parent &&
+                                       $blob_current ne $blob_parent) {
+                               print " | " .
+                                       $cgi->a({-href => href(action=>"blobdiff", hash=>$blob_current, hash_parent=>$blob_parent, hash_base=>$commit, file_name=>$file_name)},
+                                               "diff to current");
+                       }
+               }
+               print "</td>\n" .
+                     "</tr>\n";
+       }
+       if (defined $extra) {
+               print "<tr>\n" .
+                     "<td colspan=\"4\">$extra</td>\n" .
+                     "</tr>\n";
+       }
+       print "</table>\n";
+}
+
+sub git_tags_body {
+       # uses global variable $project
+       my ($taglist, $from, $to, $extra) = @_;
+       $from = 0 unless defined $from;
+       $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
+
+       print "<table class=\"tags\" cellspacing=\"0\">\n";
+       my $alternate = 0;
+       for (my $i = $from; $i <= $to; $i++) {
+               my $entry = $taglist->[$i];
+               my %tag = %$entry;
+               my $comment_lines = $tag{'comment'};
+               my $comment = shift @$comment_lines;
+               my $comment_short;
+               if (defined $comment) {
+                       $comment_short = chop_str($comment, 30, 5);
+               }
+               if ($alternate) {
+                       print "<tr class=\"dark\">\n";
+               } else {
+                       print "<tr class=\"light\">\n";
+               }
+               $alternate ^= 1;
+               print "<td><i>$tag{'age'}</i></td>\n" .
+                     "<td>" .
+                     $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
+                              -class => "list"}, "<b>" . esc_html($tag{'name'}) . "</b>") .
+                     "</td>\n" .
+                     "<td>";
+               if (defined $comment) {
+                       print format_subject_html($comment, $comment_short, href(action=>"tag", hash=>$tag{'id'}));
+               }
+               print "</td>\n" .
+                     "<td class=\"selflink\">";
+               if ($tag{'type'} eq "tag") {
+                       print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
+               } else {
+                       print "&nbsp;";
+               }
+               print "</td>\n" .
+                     "<td class=\"link\">" . " | " .
+                     $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
+               if ($tag{'reftype'} eq "commit") {
+                       print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") .
+                             " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'refid'})}, "log");
+               } elsif ($tag{'reftype'} eq "blob") {
+                       print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
+               }
+               print "</td>\n" .
+                     "</tr>";
+       }
+       if (defined $extra) {
+               print "<tr>\n" .
+                     "<td colspan=\"5\">$extra</td>\n" .
+                     "</tr>\n";
+       }
+       print "</table>\n";
+}
+
+sub git_heads_body {
+       # uses global variable $project
+       my ($taglist, $head, $from, $to, $extra) = @_;
+       $from = 0 unless defined $from;
+       $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
+
+       print "<table class=\"heads\" cellspacing=\"0\">\n";
+       my $alternate = 0;
+       for (my $i = $from; $i <= $to; $i++) {
+               my $entry = $taglist->[$i];
+               my %tag = %$entry;
+               my $curr = $tag{'id'} eq $head;
+               if ($alternate) {
+                       print "<tr class=\"dark\">\n";
+               } else {
+                       print "<tr class=\"light\">\n";
+               }
+               $alternate ^= 1;
+               print "<td><i>$tag{'age'}</i></td>\n" .
+                     ($tag{'id'} eq $head ? "<td class=\"current_head\">" : "<td>") .
+                     $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'}),
+                              -class => "list"}, "<b>" . esc_html($tag{'name'}) . "</b>") .
+                     "</td>\n" .
+                     "<td class=\"link\">" .
+                     $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") . " | " .
+                     $cgi->a({-href => href(action=>"log", hash=>$tag{'name'})}, "log") .
+                     "</td>\n" .
+                     "</tr>";
+       }
+       if (defined $extra) {
+               print "<tr>\n" .
+                     "<td colspan=\"3\">$extra</td>\n" .
+                     "</tr>\n";
+       }
+       print "</table>\n";
+}
+
+## ----------------------------------------------------------------------
+## functions printing large fragments, format as one of arguments
+
+sub git_diff_print {
+       my $from = shift;
+       my $from_name = shift;
+       my $to = shift;
+       my $to_name = shift;
+       my $format = shift || "html";
+
+       my $from_tmp = "/dev/null";
+       my $to_tmp = "/dev/null";
+       my $pid = $$;
+
+       # create tmp from-file
+       if (defined $from) {
+               $from_tmp = "$git_temp/gitweb_" . $$ . "_from";
+               open my $fd2, "> $from_tmp";
+               open my $fd, "-|", $GIT, "cat-file", "blob", $from;
+               my @file = <$fd>;
+               print $fd2 @file;
+               close $fd2;
+               close $fd;
+       }
+
+       # create tmp to-file
+       if (defined $to) {
+               $to_tmp = "$git_temp/gitweb_" . $$ . "_to";
+               open my $fd2, "> $to_tmp";
+               open my $fd, "-|", $GIT, "cat-file", "blob", $to;
+               my @file = <$fd>;
+               print $fd2 @file;
+               close $fd2;
+               close $fd;
+       }
+
+       open my $fd, "-|", "/usr/bin/diff -u -p -L \'$from_name\' -L \'$to_name\' $from_tmp $to_tmp";
+       if ($format eq "plain") {
+               undef $/;
+               print <$fd>;
+               $/ = "\n";
+       } else {
+               while (my $line = <$fd>) {
+                       chomp $line;
+                       my $char = substr($line, 0, 1);
+                       my $diff_class = "";
+                       if ($char eq '+') {
+                               $diff_class = " add";
+                       } elsif ($char eq "-") {
+                               $diff_class = " rem";
+                       } elsif ($char eq "@") {
+                               $diff_class = " chunk_header";
+                       } elsif ($char eq "\\") {
+                               # skip errors
+                               next;
+                       }
+                       $line = untabify($line);
+                       print "<div class=\"diff$diff_class\">" . esc_html($line) . "</div>\n";
+               }
+       }
+       close $fd;
+
+       if (defined $from) {
+               unlink($from_tmp);
+       }
+       if (defined $to) {
+               unlink($to_tmp);
+       }
+}
+
+
+## ======================================================================
+## ======================================================================
+## actions
+
+sub git_project_list {
+       my $order = $cgi->param('o');
+       if (defined $order && $order !~ m/project|descr|owner|age/) {
+               die_error(undef, "Unknown order parameter");
+       }
+
+       my @list = git_get_projects_list();
+       my @projects;
+       if (!@list) {
+               die_error(undef, "No projects found");
+       }
+       foreach my $pr (@list) {
+               my $head = git_get_head_hash($pr->{'path'});
+               if (!defined $head) {
+                       next;
+               }
+               $ENV{'GIT_DIR'} = "$projectroot/$pr->{'path'}";
+               my %co = parse_commit($head);
+               if (!%co) {
+                       next;
+               }
+               $pr->{'commit'} = \%co;
+               if (!defined $pr->{'descr'}) {
+                       my $descr = git_get_project_description($pr->{'path'}) || "";
+                       $pr->{'descr'} = chop_str($descr, 25, 5);
+               }
+               if (!defined $pr->{'owner'}) {
+                       $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
+               }
+               push @projects, $pr;
+       }
+
+       git_header_html();
+       if (-f $home_text) {
+               print "<div class=\"index_include\">\n";
+               open (my $fd, $home_text);
+               print <$fd>;
+               close $fd;
+               print "</div>\n";
+       }
+       print "<table class=\"project_list\">\n" .
+             "<tr>\n";
+       $order ||= "project";
+       if ($order eq "project") {
+               @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
+               print "<th>Project</th>\n";
+       } else {
+               print "<th>" .
+                     $cgi->a({-href => "$my_uri?" . esc_param("o=project"),
+                              -class => "header"}, "Project") .
+                     "</th>\n";
+       }
+       if ($order eq "descr") {
+               @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
+               print "<th>Description</th>\n";
+       } else {
+               print "<th>" .
+                     $cgi->a({-href => "$my_uri?" . esc_param("o=descr"),
+                              -class => "header"}, "Description") .
+                     "</th>\n";
+       }
+       if ($order eq "owner") {
+               @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
+               print "<th>Owner</th>\n";
+       } else {
+               print "<th>" .
+                     $cgi->a({-href => "$my_uri?" . esc_param("o=owner"),
+                              -class => "header"}, "Owner") .
+                     "</th>\n";
+       }
+       if ($order eq "age") {
+               @projects = sort {$a->{'commit'}{'age'} <=> $b->{'commit'}{'age'}} @projects;
+               print "<th>Last Change</th>\n";
+       } else {
+               print "<th>" .
+                     $cgi->a({-href => "$my_uri?" . esc_param("o=age"),
+                              -class => "header"}, "Last Change") .
+                     "</th>\n";
+       }
+       print "<th></th>\n" .
+             "</tr>\n";
+       my $alternate = 0;
+       foreach my $pr (@projects) {
+               if ($alternate) {
+                       print "<tr class=\"dark\">\n";
+               } else {
+                       print "<tr class=\"light\">\n";
+               }
+               $alternate ^= 1;
+               print "<td>" . $cgi->a({-href => "$my_uri?" . esc_param("p=$pr->{'path'};a=summary"),
+                                       -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
+                     "<td>" . esc_html($pr->{'descr'}) . "</td>\n" .
+                     "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
+               print "<td class=\"". age_class($pr->{'commit'}{'age'}) . "\">" .
+                     $pr->{'commit'}{'age_string'} . "</td>\n" .
+                     "<td class=\"link\">" .
+                     $cgi->a({-href => "$my_uri?" . esc_param("p=$pr->{'path'};a=summary")}, "summary")   . " | " .
+                     $cgi->a({-href => "$my_uri?" . esc_param("p=$pr->{'path'};a=shortlog")}, "shortlog") . " | " .
+                     $cgi->a({-href => "$my_uri?" . esc_param("p=$pr->{'path'};a=log")}, "log") .
+                     "</td>\n" .
+                     "</tr>\n";
+       }
+       print "</table>\n";
+       git_footer_html();
+}
+
+sub git_summary {
+       my $descr = git_get_project_description($project) || "none";
+       my $head = git_get_head_hash($project);
+       my %co = parse_commit($head);
+       my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
+
+       my $owner = git_get_project_owner($project);
+
+       my $refs = git_get_references();
+       git_header_html();
+       git_print_page_nav('summary','', $head);
+
+       print "<div class=\"title\">&nbsp;</div>\n";
+       print "<table cellspacing=\"0\">\n" .
+             "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
+             "<tr><td>owner</td><td>$owner</td></tr>\n" .
+             "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
+       # use per project git URL list in $projectroot/$project/cloneurl
+       # or make project git URL from git base URL and project name
+       my $url_tag = "URL";
+       my @url_list = git_get_project_url_list($project);
+       @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
+       foreach my $git_url (@url_list) {
+               next unless $git_url;
+               print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
+               $url_tag = "";
+       }
+       print "</table>\n";
+
+       open my $fd, "-|", $GIT, "rev-list", "--max-count=17", git_get_head_hash($project)
+               or die_error(undef, "Open git-rev-list failed");
+       my @revlist = map { chomp; $_ } <$fd>;
+       close $fd;
+       git_print_header_div('shortlog');
+       git_shortlog_body(\@revlist, 0, 15, $refs,
+                         $cgi->a({-href => href(action=>"shortlog")}, "..."));
+
+       my $taglist = git_get_refs_list("refs/tags");
+       if (defined @$taglist) {
+               git_print_header_div('tags');
+               git_tags_body($taglist, 0, 15,
+                             $cgi->a({-href => href(action=>"tags")}, "..."));
+       }
+
+       my $headlist = git_get_refs_list("refs/heads");
+       if (defined @$headlist) {
+               git_print_header_div('heads');
+               git_heads_body($headlist, $head, 0, 15,
+                              $cgi->a({-href => href(action=>"heads")}, "..."));
+       }
+
+       git_footer_html();
+}
+
+sub git_tag {
+       my $head = git_get_head_hash($project);
+       git_header_html();
+       git_print_page_nav('','', $head,undef,$head);
+       my %tag = parse_tag($hash);
+       git_print_header_div('commit', esc_html($tag{'name'}), $hash);
+       print "<div class=\"title_text\">\n" .
+             "<table cellspacing=\"0\">\n" .
+             "<tr>\n" .
+             "<td>object</td>\n" .
+             "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})}, $tag{'object'}) . "</td>\n" .
+             "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})}, $tag{'type'}) . "</td>\n" .
+             "</tr>\n";
+       if (defined($tag{'author'})) {
+               my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
+               print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
+               print "<tr><td></td><td>" . $ad{'rfc2822'} . sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) . "</td></tr>\n";
+       }
+       print "</table>\n\n" .
+             "</div>\n";
+       print "<div class=\"page_body\">";
+       my $comment = $tag{'comment'};
+       foreach my $line (@$comment) {
+               print esc_html($line) . "<br/>\n";
+       }
+       print "</div>\n";
+       git_footer_html();
+}
+
+sub git_blame2 {
+       my $fd;
+       my $ftype;
+       die_error(undef, "Permission denied") if (!git_get_project_config_bool ('blame'));
+       die_error('404 Not Found', "File name not defined") if (!$file_name);
+       $hash_base ||= git_get_head_hash($project);
+       die_error(undef, "Couldn't find base commit") unless ($hash_base);
+       my %co = parse_commit($hash_base)
+               or die_error(undef, "Reading commit failed");
+       if (!defined $hash) {
+               $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
+                       or die_error(undef, "Error looking up file");
+       }
+       $ftype = git_get_type($hash);
+       if ($ftype !~ "blob") {
+               die_error("400 Bad Request", "Object is not a blob");
+       }
+       open ($fd, "-|", $GIT, "blame", '-l', $file_name, $hash_base)
+               or die_error(undef, "Open git-blame failed");
+       git_header_html();
+       my $formats_nav =
+               $cgi->a({-href => href(action=>"blobl", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)}, "blob") .
+               " | " . $cgi->a({-href => href(action=>"blame", file_name=>$file_name)}, "head");
+       git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
+       git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
+       git_print_page_path($file_name, $ftype);
+       my @rev_color = (qw(light2 dark2));
+       my $num_colors = scalar(@rev_color);
+       my $current_color = 0;
+       my $last_rev;
+       print "<div class=\"page_body\">\n";
+       print "<table class=\"blame\">\n";
+       print "<tr><th>Commit</th><th>Line</th><th>Data</th></tr>\n";
+       while (<$fd>) {
+               /^([0-9a-fA-F]{40}).*?(\d+)\)\s{1}(\s*.*)/;
+               my $full_rev = $1;
+               my $rev = substr($full_rev, 0, 8);
+               my $lineno = $2;
+               my $data = $3;
+
+               if (!defined $last_rev) {
+                       $last_rev = $full_rev;
+               } elsif ($last_rev ne $full_rev) {
+                       $last_rev = $full_rev;
+                       $current_color = ++$current_color % $num_colors;
+               }
+               print "<tr class=\"$rev_color[$current_color]\">\n";
+               print "<td class=\"sha1\">" .
+                       $cgi->a({-href => href(action=>"commit", hash=>$full_rev, file_name=>$file_name)}, esc_html($rev)) . "</td>\n";
+               print "<td class=\"linenr\"><a id=\"l$lineno\" href=\"#l$lineno\" class=\"linenr\">" . esc_html($lineno) . "</a></td>\n";
+               print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
+               print "</tr>\n";
+       }
+       print "</table>\n";
+       print "</div>";
+       close $fd or print "Reading blob failed\n";
+       git_footer_html();
+}
+
+sub git_blame {
+       my $fd;
+       die_error('403 Permission denied', "Permission denied") if (!git_get_project_config_bool ('blame'));
+       die_error('404 Not Found', "File name not defined") if (!$file_name);
+       $hash_base ||= git_get_head_hash($project);
+       die_error(undef, "Couldn't find base commit") unless ($hash_base);
+       my %co = parse_commit($hash_base)
+               or die_error(undef, "Reading commit failed");
+       if (!defined $hash) {
+               $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
+                       or die_error(undef, "Error lookup file");
+       }
+       open ($fd, "-|", $GIT, "annotate", '-l', '-t', '-r', $file_name, $hash_base)
+               or die_error(undef, "Open git-annotate failed");
+       git_header_html();
+       my $formats_nav =
+               $cgi->a({-href => href(action=>"blobl", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)}, "blob") .
+               " | " . $cgi->a({-href => href(action=>"blame", file_name=>$file_name)}, "head");
+       git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
+       git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
+       git_print_page_path($file_name, 'blob');
+       print "<div class=\"page_body\">\n";
+       print <<HTML;
+<table class="blame">
+  <tr>
+    <th>Commit</th>
+    <th>Age</th>
+    <th>Author</th>
+    <th>Line</th>
+    <th>Data</th>
+  </tr>
+HTML
+       my @line_class = (qw(light dark));
+       my $line_class_len = scalar (@line_class);
+       my $line_class_num = $#line_class;
+       while (my $line = <$fd>) {
+               my $long_rev;
+               my $short_rev;
+               my $author;
+               my $time;
+               my $lineno;
+               my $data;
+               my $age;
+               my $age_str;
+               my $age_class;
+
+               chomp $line;
+               $line_class_num = ($line_class_num + 1) % $line_class_len;
+
+               if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) \+\d\d\d\d\t(\d+)\)(.*)$/) {
+                       $long_rev = $1;
+                       $author   = $2;
+                       $time     = $3;
+                       $lineno   = $4;
+                       $data     = $5;
+               } else {
+                       print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
+                       next;
+               }
+               $short_rev  = substr ($long_rev, 0, 8);
+               $age        = time () - $time;
+               $age_str    = age_string ($age);
+               $age_str    =~ s/ /&nbsp;/g;
+               $age_class  = age_class($age);
+               $author     = esc_html ($author);
+               $author     =~ s/ /&nbsp;/g;
+
+               $data = untabify($data);
+               $data = esc_html ($data);
+
+               print <<HTML;
+  <tr class="$line_class[$line_class_num]">
+    <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
+    <td class="$age_class">$age_str</td>
+    <td>$author</td>
+    <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
+    <td class="pre">$data</td>
+  </tr>
+HTML
+       } # while (my $line = <$fd>)
+       print "</table>\n\n";
+       close $fd or print "Reading blob failed.\n";
+       print "</div>";
+       git_footer_html();
+}
+
+sub git_tags {
+       my $head = git_get_head_hash($project);
+       git_header_html();
+       git_print_page_nav('','', $head,undef,$head);
+       git_print_header_div('summary', $project);
+
+       my $taglist = git_get_refs_list("refs/tags");
+       if (defined @$taglist) {
+               git_tags_body($taglist);
+       }
+       git_footer_html();
+}
+
+sub git_heads {
+       my $head = git_get_head_hash($project);
+       git_header_html();
+       git_print_page_nav('','', $head,undef,$head);
+       git_print_header_div('summary', $project);
+
+       my $taglist = git_get_refs_list("refs/heads");
+       if (defined @$taglist) {
+               git_heads_body($taglist, $head);
+       }
+       git_footer_html();
+}
+
+sub git_blob_plain {
+       if (!defined $hash) {
+               if (defined $file_name) {
+                       my $base = $hash_base || git_get_head_hash($project);
+                       $hash = git_get_hash_by_path($base, $file_name, "blob")
+                               or die_error(undef, "Error lookup file");
+               } else {
+                       die_error(undef, "No file name defined");
+               }
+       }
+       my $type = shift;
+       open my $fd, "-|", $GIT, "cat-file", "blob", $hash
+               or die_error(undef, "Couldn't cat $file_name, $hash");
+
+       $type ||= blob_mimetype($fd, $file_name);
+
+       # save as filename, even when no $file_name is given
+       my $save_as = "$hash";
+       if (defined $file_name) {
+               $save_as = $file_name;
+       } elsif ($type =~ m/^text\//) {
+               $save_as .= '.txt';
+       }
+
+       print $cgi->header(-type => "$type", '-content-disposition' => "inline; filename=\"$save_as\"");
+       undef $/;
+       binmode STDOUT, ':raw';
+       print <$fd>;
+       binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
+       $/ = "\n";
+       close $fd;
+}
+
+sub git_blob {
+       if (!defined $hash) {
+               if (defined $file_name) {
+                       my $base = $hash_base || git_get_head_hash($project);
+                       $hash = git_get_hash_by_path($base, $file_name, "blob")
+                               or die_error(undef, "Error lookup file");
+               } else {
+                       die_error(undef, "No file name defined");
+               }
+       }
+       my $have_blame = git_get_project_config_bool ('blame');
+       open my $fd, "-|", $GIT, "cat-file", "blob", $hash
+               or die_error(undef, "Couldn't cat $file_name, $hash");
+       my $mimetype = blob_mimetype($fd, $file_name);
+       if ($mimetype !~ m/^text\//) {
+               close $fd;
+               return git_blob_plain($mimetype);
+       }
+       git_header_html();
+       my $formats_nav = '';
+       if (defined $hash_base && (my %co = parse_commit($hash_base))) {
+               if (defined $file_name) {
+                       if ($have_blame) {
+                               $formats_nav .= $cgi->a({-href => href(action=>"blame", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)}, "blame") . " | ";
+                       }
+                       $formats_nav .=
+                               $cgi->a({-href => href(action=>"blob_plain", hash=>$hash, file_name=>$file_name)}, "plain") .
+                               " | " . $cgi->a({-href => href(action=>"blob", hash_base=>"HEAD", file_name=>$file_name)}, "head");
+               } else {
+                       $formats_nav .= $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "plain");
+               }
+               git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
+               git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
+       } else {
+               print "<div class=\"page_nav\">\n" .
+                     "<br/><br/></div>\n" .
+                     "<div class=\"title\">$hash</div>\n";
+       }
+       git_print_page_path($file_name, "blob");
+       print "<div class=\"page_body\">\n";
+       my $nr;
+       while (my $line = <$fd>) {
+               chomp $line;
+               $nr++;
+               $line = untabify($line);
+               printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n", $nr, $nr, $nr, esc_html($line);
+       }
+       close $fd or print "Reading blob failed.\n";
+       print "</div>";
+       git_footer_html();
+}
+
+sub git_tree {
+       if (!defined $hash) {
+               $hash = git_get_head_hash($project);
+               if (defined $file_name) {
+                       my $base = $hash_base || $hash;
+                       $hash = git_get_hash_by_path($base, $file_name, "tree");
+               }
+               if (!defined $hash_base) {
+                       $hash_base = $hash;
+               }
+       }
+       $/ = "\0";
+       open my $fd, "-|", $GIT, "ls-tree", '-z', $hash
+               or die_error(undef, "Open git-ls-tree failed");
+       my @entries = map { chomp; $_ } <$fd>;
+       close $fd or die_error(undef, "Reading tree failed");
+       $/ = "\n";
+
+       my $refs = git_get_references();
+       my $ref = format_ref_marker($refs, $hash_base);
+       git_header_html();
+       my $base_key = "";
+       my $base = "";
+       my $have_blame = git_get_project_config_bool ('blame');
+       if (defined $hash_base && (my %co = parse_commit($hash_base))) {
+               $base_key = ";hb=$hash_base";
+               git_print_page_nav('tree','', $hash_base);
+               git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
+       } else {
+               print "<div class=\"page_nav\">\n";
+               print "<br/><br/></div>\n";
+               print "<div class=\"title\">$hash</div>\n";
+       }
+       if (defined $file_name) {
+               $base = esc_html("$file_name/");
+       }
+       git_print_page_path($file_name, 'tree');
+       print "<div class=\"page_body\">\n";
+       print "<table cellspacing=\"0\">\n";
+       my $alternate = 0;
+       foreach my $line (@entries) {
+               #'100644        blob    0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa        panic.c'
+               $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
+               my $t_mode = $1;
+               my $t_type = $2;
+               my $t_hash = $3;
+               my $t_name = validate_input($4);
+               if ($alternate) {
+                       print "<tr class=\"dark\">\n";
+               } else {
+                       print "<tr class=\"light\">\n";
+               }
+               $alternate ^= 1;
+               print "<td class=\"mode\">" . mode_str($t_mode) . "</td>\n";
+               if ($t_type eq "blob") {
+                       print "<td class=\"list\">" .
+                             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$t_hash$base_key;f=$base$t_name"), -class => "list"}, esc_html($t_name)) .
+                             "</td>\n" .
+                             "<td class=\"link\">" .
+                             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$t_hash$base_key;f=$base$t_name")}, "blob");
+                       if ($have_blame) {
+                               print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blame;h=$t_hash$base_key;f=$base$t_name")}, "blame");
+                       }
+                       print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=history;h=$t_hash;hb=$hash_base;f=$base$t_name")}, "history") .
+                             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob_plain;h=$t_hash;f=$base$t_name")}, "raw") .
+                             "</td>\n";
+               } elsif ($t_type eq "tree") {
+                       print "<td class=\"list\">" .
+                             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$t_hash$base_key;f=$base$t_name")}, esc_html($t_name)) .
+                             "</td>\n" .
+                             "<td class=\"link\">" .
+                             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$t_hash$base_key;f=$base$t_name")}, "tree") .
+                             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=history;hb=$hash_base;f=$base$t_name")}, "history") .
+                             "</td>\n";
+               }
+               print "</tr>\n";
+       }
+       print "</table>\n" .
+             "</div>";
+       git_footer_html();
+}
+
+sub git_log {
+       my $head = git_get_head_hash($project);
+       if (!defined $hash) {
+               $hash = $head;
+       }
+       if (!defined $page) {
+               $page = 0;
+       }
+       my $refs = git_get_references();
+
+       my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
+       open my $fd, "-|", $GIT, "rev-list", $limit, $hash
+               or die_error(undef, "Open git-rev-list failed");
+       my @revlist = map { chomp; $_ } <$fd>;
+       close $fd;
+
+       my $paging_nav = format_paging_nav('log', $hash, $head, $page, $#revlist);
+
+       git_header_html();
+       git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
+
+       if (!@revlist) {
+               my %co = parse_commit($hash);
+
+               git_print_header_div('summary', $project);
+               print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
+       }
+       for (my $i = ($page * 100); $i <= $#revlist; $i++) {
+               my $commit = $revlist[$i];
+               my $ref = format_ref_marker($refs, $commit);
+               my %co = parse_commit($commit);
+               next if !%co;
+               my %ad = parse_date($co{'author_epoch'});
+               git_print_header_div('commit',
+                              "<span class=\"age\">$co{'age_string'}</span>" .
+                              esc_html($co{'title'}) . $ref,
+                              $commit);
+               print "<div class=\"title_text\">\n" .
+                     "<div class=\"log_link\">\n" .
+                     $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
+                     " | " . $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
+                     "<br/>\n" .
+                     "</div>\n" .
+                     "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
+                     "</div>\n" .
+                     "<div class=\"log_body\">\n";
+               my $comment = $co{'comment'};
+               my $empty = 0;
+               foreach my $line (@$comment) {
+                       if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
+                               next;
+                       }
+                       if ($line eq "") {
+                               if ($empty) {
+                                       next;
+                               }
+                               $empty = 1;
+                       } else {
+                               $empty = 0;
+                       }
+                       print format_log_line_html($line) . "<br/>\n";
+               }
+               if (!$empty) {
+                       print "<br/>\n";
+               }
+               print "</div>\n";
+       }
+       git_footer_html();
+}
+
+sub git_commit {
+       my %co = parse_commit($hash);
+       if (!%co) {
+               die_error(undef, "Unknown commit object");
+       }
+       my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
+       my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
+
+       my $parent = $co{'parent'};
+       if (!defined $parent) {
+               $parent = "--root";
+       }
+       open my $fd, "-|", $GIT, "diff-tree", '-r', '-M', $parent, $hash
+               or die_error(undef, "Open git-diff-tree failed");
+       my @difftree = map { chomp; $_ } <$fd>;
+       close $fd or die_error(undef, "Reading git-diff-tree failed");
+
+       # non-textual hash id's can be cached
+       my $expires;
+       if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
+               $expires = "+1d";
+       }
+       my $refs = git_get_references();
+       my $ref = format_ref_marker($refs, $co{'id'});
+       my $formats_nav = '';
+       if (defined $file_name && defined $co{'parent'}) {
+               my $parent = $co{'parent'};
+               $formats_nav .= $cgi->a({-href => href(action=>"blame", hash_parent=>$parent, file_name=>$file_name)}, "blame");
+       }
+       git_header_html(undef, $expires);
+       git_print_page_nav('commit', defined $co{'parent'} ? '' : 'commitdiff',
+                    $hash, $co{'tree'}, $hash,
+                    $formats_nav);
+
+       if (defined $co{'parent'}) {
+               git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
+       } else {
+               git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
+       }
+       print "<div class=\"title_text\">\n" .
+             "<table cellspacing=\"0\">\n";
+       print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
+             "<tr>" .
+             "<td></td><td> $ad{'rfc2822'}";
+       if ($ad{'hour_local'} < 6) {
+               printf(" (<span class=\"atnight\">%02d:%02d</span> %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
+       } else {
+               printf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
+       }
+       print "</td>" .
+             "</tr>\n";
+       print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
+       print "<tr><td></td><td> $cd{'rfc2822'}" . sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) . "</td></tr>\n";
+       print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
+       print "<tr>" .
+             "<td>tree</td>" .
+             "<td class=\"sha1\">" .
+             $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash), class => "list"}, $co{'tree'}) .
+             "</td>" .
+             "<td class=\"link\">" . $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)}, "tree") .
+             "</td>" .
+             "</tr>\n";
+       my $parents = $co{'parents'};
+       foreach my $par (@$parents) {
+               print "<tr>" .
+                     "<td>parent</td>" .
+                     "<td class=\"sha1\">" . $cgi->a({-href => href(action=>"commit", hash=>$par), class => "list"}, $par) . "</td>" .
+                     "<td class=\"link\">" .
+                     $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
+                     " | " . $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "commitdiff") .
+                     "</td>" .
+                     "</tr>\n";
+       }
+       print "</table>".
+             "</div>\n";
+       print "<div class=\"page_body\">\n";
+       my $comment = $co{'comment'};
+       my $empty = 0;
+       my $signed = 0;
+       foreach my $line (@$comment) {
+               # print only one empty line
+               if ($line eq "") {
+                       if ($empty || $signed) {
+                               next;
+                       }
+                       $empty = 1;
+               } else {
+                       $empty = 0;
+               }
+               if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
+                       $signed = 1;
+                       print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
+               } else {
+                       $signed = 0;
+                       print format_log_line_html($line) . "<br/>\n";
+               }
+       }
+       print "</div>\n";
+
+       git_difftree_body(\@difftree, $parent);
+
+       git_footer_html();
+}
+
+sub git_blobdiff {
+       mkdir($git_temp, 0700);
+       git_header_html();
+       if (defined $hash_base && (my %co = parse_commit($hash_base))) {
+               my $formats_nav =
+                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blobdiff_plain;h=$hash;hp=$hash_parent")}, "plain");
+               git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
+               git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
+       } else {
+               print "<div class=\"page_nav\">\n" .
+                     "<br/><br/></div>\n" .
+                     "<div class=\"title\">$hash vs $hash_parent</div>\n";
+       }
+       git_print_page_path($file_name, "blob");
+       print "<div class=\"page_body\">\n" .
+             "<div class=\"diff_info\">blob:" .
+             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$hash_parent;hb=$hash_base;f=$file_name")}, $hash_parent) .
+             " -> blob:" .
+             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$hash;hb=$hash_base;f=$file_name")}, $hash) .
+             "</div>\n";
+       git_diff_print($hash_parent, $file_name || $hash_parent, $hash, $file_name || $hash);
+       print "</div>";
+       git_footer_html();
+}
+
+sub git_blobdiff_plain {
+       mkdir($git_temp, 0700);
+       print $cgi->header(-type => "text/plain", -charset => 'utf-8');
+       git_diff_print($hash_parent, $file_name || $hash_parent, $hash, $file_name || $hash, "plain");
+}
+
+sub git_commitdiff {
+       mkdir($git_temp, 0700);
+       my %co = parse_commit($hash);
+       if (!%co) {
+               die_error(undef, "Unknown commit object");
+       }
+       if (!defined $hash_parent) {
+               $hash_parent = $co{'parent'} || '--root';
+       }
+       open my $fd, "-|", $GIT, "diff-tree", '-r', $hash_parent, $hash
+               or die_error(undef, "Open git-diff-tree failed");
+       my @difftree = map { chomp; $_ } <$fd>;
+       close $fd or die_error(undef, "Reading git-diff-tree failed");
+
+       # non-textual hash id's can be cached
+       my $expires;
+       if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
+               $expires = "+1d";
+       }
+       my $refs = git_get_references();
+       my $ref = format_ref_marker($refs, $co{'id'});
+       my $formats_nav =
+               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff_plain;h=$hash;hp=$hash_parent")}, "plain");
+       git_header_html(undef, $expires);
+       git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
+       git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
+       print "<div class=\"page_body\">\n";
+       my $comment = $co{'comment'};
+       my $empty = 0;
+       my $signed = 0;
+       my @log = @$comment;
+       # remove first and empty lines after that
+       shift @log;
+       while (defined $log[0] && $log[0] eq "") {
+               shift @log;
+       }
+       foreach my $line (@log) {
+               if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
+                       next;
+               }
+               if ($line eq "") {
+                       if ($empty) {
+                               next;
+                       }
+                       $empty = 1;
+               } else {
+                       $empty = 0;
+               }
+               print format_log_line_html($line) . "<br/>\n";
+       }
+       print "<br/>\n";
+       foreach my $line (@difftree) {
+               # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M      ls-files.c'
+               # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M      rev-tree.c'
+               if ($line !~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
+                       next;
+               }
+               my $from_mode = $1;
+               my $to_mode = $2;
+               my $from_id = $3;
+               my $to_id = $4;
+               my $status = $5;
+               my $file = validate_input(unquote($6));
+               if ($status eq "A") {
+                       print "<div class=\"diff_info\">" . file_type($to_mode) . ":" .
+                             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file")}, $to_id) . "(new)" .
+                             "</div>\n";
+                       git_diff_print(undef, "/dev/null", $to_id, "b/$file");
+               } elsif ($status eq "D") {
+                       print "<div class=\"diff_info\">" . file_type($from_mode) . ":" .
+                             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$from_id;hb=$hash_parent;f=$file")}, $from_id) . "(deleted)" .
+                             "</div>\n";
+                       git_diff_print($from_id, "a/$file", undef, "/dev/null");
+               } elsif ($status eq "M") {
+                       if ($from_id ne $to_id) {
+                               print "<div class=\"diff_info\">" .
+                                     file_type($from_mode) . ":" .
+                                     $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$from_id;hb=$hash_parent;f=$file")}, $from_id) .
+                                     " -> " .
+                                     file_type($to_mode) . ":" .
+                                     $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file")}, $to_id);
+                               print "</div>\n";
+                               git_diff_print($from_id, "a/$file",  $to_id, "b/$file");
+                       }
+               }
+       }
+       print "<br/>\n" .
+             "</div>";
+       git_footer_html();
+}
+
+sub git_commitdiff_plain {
+       mkdir($git_temp, 0700);
+       my %co = parse_commit($hash);
+       if (!%co) {
+               die_error(undef, "Unknown commit object");
+       }
+       if (!defined $hash_parent) {
+               $hash_parent = $co{'parent'} || '--root';
+       }
+       open my $fd, "-|", $GIT, "diff-tree", '-r', $hash_parent, $hash
+               or die_error(undef, "Open git-diff-tree failed");
+       my @difftree = map { chomp; $_ } <$fd>;
+       close $fd or die_error(undef, "Reading diff-tree failed");
+
+       # try to figure out the next tag after this commit
+       my $tagname;
+       my $refs = git_get_references("tags");
+       open $fd, "-|", $GIT, "rev-list", "HEAD";
+       my @commits = map { chomp; $_ } <$fd>;
+       close $fd;
+       foreach my $commit (@commits) {
+               if (defined $refs->{$commit}) {
+                       $tagname = $refs->{$commit}
+               }
+               if ($commit eq $hash) {
+                       last;
+               }
+       }
+
+       print $cgi->header(-type => "text/plain", -charset => 'utf-8', '-content-disposition' => "inline; filename=\"git-$hash.patch\"");
+       my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
+       my $comment = $co{'comment'};
+       print "From: $co{'author'}\n" .
+             "Date: $ad{'rfc2822'} ($ad{'tz_local'})\n".
+             "Subject: $co{'title'}\n";
+       if (defined $tagname) {
+               print "X-Git-Tag: $tagname\n";
+       }
+       print "X-Git-Url: $my_url?p=$project;a=commitdiff;h=$hash\n" .
+             "\n";
+
+       foreach my $line (@$comment) {;
+               print "$line\n";
+       }
+       print "---\n\n";
+
+       foreach my $line (@difftree) {
+               if ($line !~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
+                       next;
+               }
+               my $from_id = $3;
+               my $to_id = $4;
+               my $status = $5;
+               my $file = $6;
+               if ($status eq "A") {
+                       git_diff_print(undef, "/dev/null", $to_id, "b/$file", "plain");
+               } elsif ($status eq "D") {
+                       git_diff_print($from_id, "a/$file", undef, "/dev/null", "plain");
+               } elsif ($status eq "M") {
+                       git_diff_print($from_id, "a/$file",  $to_id, "b/$file", "plain");
+               }
+       }
+}
+
+sub git_history {
+       if (!defined $hash_base) {
+               $hash_base = git_get_head_hash($project);
+       }
+       my $ftype;
+       my %co = parse_commit($hash_base);
+       if (!%co) {
+               die_error(undef, "Unknown commit object");
+       }
+       my $refs = git_get_references();
+       git_header_html();
+       git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base);
+       git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
+       if (!defined $hash && defined $file_name) {
+               $hash = git_get_hash_by_path($hash_base, $file_name);
+       }
+       if (defined $hash) {
+               $ftype = git_get_type($hash);
+       }
+       git_print_page_path($file_name, $ftype);
+
+       open my $fd, "-|",
+               $GIT, "rev-list", "--full-history", $hash_base, "--", $file_name;
+       git_history_body($fd, $refs, $hash_base, $ftype);
+
+       close $fd;
+       git_footer_html();
+}
+
+sub git_search {
+       if (!defined $searchtext) {
+               die_error(undef, "Text field empty");
+       }
+       if (!defined $hash) {
+               $hash = git_get_head_hash($project);
+       }
+       my %co = parse_commit($hash);
+       if (!%co) {
+               die_error(undef, "Unknown commit object");
+       }
+       # pickaxe may take all resources of your box and run for several minutes
+       # with every query - so decide by yourself how public you make this feature :)
+       my $commit_search = 1;
+       my $author_search = 0;
+       my $committer_search = 0;
+       my $pickaxe_search = 0;
+       if ($searchtext =~ s/^author\\://i) {
+               $author_search = 1;
+       } elsif ($searchtext =~ s/^committer\\://i) {
+               $committer_search = 1;
+       } elsif ($searchtext =~ s/^pickaxe\\://i) {
+               $commit_search = 0;
+               $pickaxe_search = 1;
+       }
+       git_header_html();
+       git_print_page_nav('','', $hash,$co{'tree'},$hash);
+       git_print_header_div('commit', esc_html($co{'title'}), $hash);
+
+       print "<table cellspacing=\"0\">\n";
+       my $alternate = 0;
+       if ($commit_search) {
+               $/ = "\0";
+               open my $fd, "-|", $GIT, "rev-list", "--header", "--parents", $hash or next;
+               while (my $commit_text = <$fd>) {
+                       if (!grep m/$searchtext/i, $commit_text) {
+                               next;
+                       }
+                       if ($author_search && !grep m/\nauthor .*$searchtext/i, $commit_text) {
+                               next;
+                       }
+                       if ($committer_search && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
+                               next;
+                       }
+                       my @commit_lines = split "\n", $commit_text;
+                       my %co = parse_commit(undef, \@commit_lines);
+                       if (!%co) {
+                               next;
+                       }
+                       if ($alternate) {
+                               print "<tr class=\"dark\">\n";
+                       } else {
+                               print "<tr class=\"light\">\n";
+                       }
+                       $alternate ^= 1;
+                       print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
+                             "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
+                             "<td>" .
+                             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$co{'id'}"), -class => "list"}, "<b>" . esc_html(chop_str($co{'title'}, 50)) . "</b><br/>");
+                       my $comment = $co{'comment'};
+                       foreach my $line (@$comment) {
+                               if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
+                                       my $lead = esc_html($1) || "";
+                                       $lead = chop_str($lead, 30, 10);
+                                       my $match = esc_html($2) || "";
+                                       my $trail = esc_html($3) || "";
+                                       $trail = chop_str($trail, 30, 10);
+                                       my $text = "$lead<span class=\"match\">$match</span>$trail";
+                                       print chop_str($text, 80, 5) . "<br/>\n";
+                               }
+                       }
+                       print "</td>\n" .
+                             "<td class=\"link\">" .
+                             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$co{'id'}")}, "commit") .
+                             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$co{'id'}")}, "tree");
+                       print "</td>\n" .
+                             "</tr>\n";
+               }
+               close $fd;
+       }
+
+       if ($pickaxe_search) {
+               $/ = "\n";
+               open my $fd, "-|", "$GIT rev-list $hash | $GIT diff-tree -r --stdin -S\'$searchtext\'";
+               undef %co;
+               my @files;
+               while (my $line = <$fd>) {
+                       if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
+                               my %set;
+                               $set{'file'} = $6;
+                               $set{'from_id'} = $3;
+                               $set{'to_id'} = $4;
+                               $set{'id'} = $set{'to_id'};
+                               if ($set{'id'} =~ m/0{40}/) {
+                                       $set{'id'} = $set{'from_id'};
+                               }
+                               if ($set{'id'} =~ m/0{40}/) {
+                                       next;
+                               }
+                               push @files, \%set;
+                       } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
+                               if (%co) {
+                                       if ($alternate) {
+                                               print "<tr class=\"dark\">\n";
+                                       } else {
+                                               print "<tr class=\"light\">\n";
+                                       }
+                                       $alternate ^= 1;
+                                       print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
+                                             "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
+                                             "<td>" .
+                                             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$co{'id'}"), -class => "list"}, "<b>" .
+                                             esc_html(chop_str($co{'title'}, 50)) . "</b><br/>");
+                                       while (my $setref = shift @files) {
+                                               my %set = %$setref;
+                                               print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$set{'id'};hb=$co{'id'};f=$set{'file'}"), class => "list"},
+                                                     "<span class=\"match\">" . esc_html($set{'file'}) . "</span>") .
+                                                     "<br/>\n";
+                                       }
+                                       print "</td>\n" .
+                                             "<td class=\"link\">" .
+                                             $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$co{'id'}")}, "commit") .
+                                             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$co{'id'}")}, "tree");
+                                       print "</td>\n" .
+                                             "</tr>\n";
+                               }
+                               %co = parse_commit($1);
+                       }
+               }
+               close $fd;
+       }
+       print "</table>\n";
+       git_footer_html();
+}
+
+sub git_shortlog {
+       my $head = git_get_head_hash($project);
+       if (!defined $hash) {
+               $hash = $head;
+       }
+       if (!defined $page) {
+               $page = 0;
+       }
+       my $refs = git_get_references();
+
+       my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
+       open my $fd, "-|", $GIT, "rev-list", $limit, $hash
+               or die_error(undef, "Open git-rev-list failed");
+       my @revlist = map { chomp; $_ } <$fd>;
+       close $fd;
+
+       my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, $#revlist);
+       my $next_link = '';
+       if ($#revlist >= (100 * ($page+1)-1)) {
+               $next_link =
+                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$hash;pg=" . ($page+1)),
+                                -title => "Alt-n"}, "next");
+       }
+
+
+       git_header_html();
+       git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
+       git_print_header_div('summary', $project);
+
+       git_shortlog_body(\@revlist, ($page * 100), $#revlist, $refs, $next_link);
+
+       git_footer_html();
+}
+
+## ......................................................................
+## feeds (RSS, OPML)
+
+sub git_rss {
+       # http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
+       open my $fd, "-|", $GIT, "rev-list", "--max-count=150", git_get_head_hash($project)
+               or die_error(undef, "Open git-rev-list failed");
+       my @revlist = map { chomp; $_ } <$fd>;
+       close $fd or die_error(undef, "Reading git-rev-list failed");
+       print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
+       print "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n".
+             "<rss version=\"2.0\" xmlns:content=\"http://purl.org/rss/1.0/modules/content/\">\n";
+       print "<channel>\n";
+       print "<title>$project</title>\n".
+             "<link>" . esc_html("$my_url?p=$project;a=summary") . "</link>\n".
+             "<description>$project log</description>\n".
+             "<language>en</language>\n";
+
+       for (my $i = 0; $i <= $#revlist; $i++) {
+               my $commit = $revlist[$i];
+               my %co = parse_commit($commit);
+               # we read 150, we always show 30 and the ones more recent than 48 hours
+               if (($i >= 20) && ((time - $co{'committer_epoch'}) > 48*60*60)) {
+                       last;
+               }
+               my %cd = parse_date($co{'committer_epoch'});
+               open $fd, "-|", $GIT, "diff-tree", '-r', $co{'parent'}, $co{'id'} or next;
+               my @difftree = map { chomp; $_ } <$fd>;
+               close $fd or next;
+               print "<item>\n" .
+                     "<title>" .
+                     sprintf("%d %s %02d:%02d", $cd{'mday'}, $cd{'month'}, $cd{'hour'}, $cd{'minute'}) . " - " . esc_html($co{'title'}) .
+                     "</title>\n" .
+                     "<author>" . esc_html($co{'author'}) . "</author>\n" .
+                     "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
+                     "<guid isPermaLink=\"true\">" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</guid>\n" .
+                     "<link>" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</link>\n" .
+                     "<description>" . esc_html($co{'title'}) . "</description>\n" .
+                     "<content:encoded>" .
+                     "<![CDATA[\n";
+               my $comment = $co{'comment'};
+               foreach my $line (@$comment) {
+                       $line = decode("utf8", $line, Encode::FB_DEFAULT);
+                       print "$line<br/>\n";
+               }
+               print "<br/>\n";
+               foreach my $line (@difftree) {
+                       if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
+                               next;
+                       }
+                       my $file = validate_input(unquote($7));
+                       $file = decode("utf8", $file, Encode::FB_DEFAULT);
+                       print "$file<br/>\n";
+               }
+               print "]]>\n" .
+                     "</content:encoded>\n" .
+                     "</item>\n";
+       }
+       print "</channel></rss>";
+}
+
+sub git_opml {
+       my @list = git_get_projects_list();
+
+       print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
+       print "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n".
+             "<opml version=\"1.0\">\n".
+             "<head>".
+             "  <title>$site_name Git OPML Export</title>\n".
+             "</head>\n".
+             "<body>\n".
+             "<outline text=\"git RSS feeds\">\n";
+
+       foreach my $pr (@list) {
+               my %proj = %$pr;
+               my $head = git_get_head_hash($proj{'path'});
+               if (!defined $head) {
+                       next;
+               }
+               $ENV{'GIT_DIR'} = "$projectroot/$proj{'path'}";
+               my %co = parse_commit($head);
+               if (!%co) {
+                       next;
+               }
+
+               my $path = esc_html(chop_str($proj{'path'}, 25, 5));
+               my $rss  = "$my_url?p=$proj{'path'};a=rss";
+               my $html = "$my_url?p=$proj{'path'};a=summary";
+               print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
+       }
+       print "</outline>\n".
+             "</body>\n".
+             "</opml>\n";
+}
diff --git a/help.c b/help.c
new file mode 100644 (file)
index 0000000..9ecdefd
--- /dev/null
+++ b/help.c
@@ -0,0 +1,234 @@
+/*
+ * builtin-help.c
+ *
+ * Builtin help-related commands (help, usage, version)
+ */
+#include <sys/ioctl.h>
+#include "cache.h"
+#include "builtin.h"
+#include "exec_cmd.h"
+#include "common-cmds.h"
+
+
+/* most GUI terminals set COLUMNS (although some don't export it) */
+static int term_columns(void)
+{
+       char *col_string = getenv("COLUMNS");
+       int n_cols;
+
+       if (col_string && (n_cols = atoi(col_string)) > 0)
+               return n_cols;
+
+#ifdef TIOCGWINSZ
+       {
+               struct winsize ws;
+               if (!ioctl(1, TIOCGWINSZ, &ws)) {
+                       if (ws.ws_col)
+                               return ws.ws_col;
+               }
+       }
+#endif
+
+       return 80;
+}
+
+static void oom(void)
+{
+       fprintf(stderr, "git: out of memory\n");
+       exit(1);
+}
+
+static inline void mput_char(char c, unsigned int num)
+{
+       while(num--)
+               putchar(c);
+}
+
+static struct cmdname {
+       size_t len;
+       char name[1];
+} **cmdname;
+static int cmdname_alloc, cmdname_cnt;
+
+static void add_cmdname(const char *name, int len)
+{
+       struct cmdname *ent;
+       if (cmdname_alloc <= cmdname_cnt) {
+               cmdname_alloc = cmdname_alloc + 200;
+               cmdname = realloc(cmdname, cmdname_alloc * sizeof(*cmdname));
+               if (!cmdname)
+                       oom();
+       }
+       ent = malloc(sizeof(*ent) + len);
+       if (!ent)
+               oom();
+       ent->len = len;
+       memcpy(ent->name, name, len);
+       ent->name[len] = 0;
+       cmdname[cmdname_cnt++] = ent;
+}
+
+static int cmdname_compare(const void *a_, const void *b_)
+{
+       struct cmdname *a = *(struct cmdname **)a_;
+       struct cmdname *b = *(struct cmdname **)b_;
+       return strcmp(a->name, b->name);
+}
+
+static void pretty_print_string_list(struct cmdname **cmdname, int longest)
+{
+       int cols = 1, rows;
+       int space = longest + 1; /* min 1 SP between words */
+       int max_cols = term_columns() - 1; /* don't print *on* the edge */
+       int i, j;
+
+       if (space < max_cols)
+               cols = max_cols / space;
+       rows = (cmdname_cnt + cols - 1) / cols;
+
+       qsort(cmdname, cmdname_cnt, sizeof(*cmdname), cmdname_compare);
+
+       for (i = 0; i < rows; i++) {
+               printf("  ");
+
+               for (j = 0; j < cols; j++) {
+                       int n = j * rows + i;
+                       int size = space;
+                       if (n >= cmdname_cnt)
+                               break;
+                       if (j == cols-1 || n + rows >= cmdname_cnt)
+                               size = 1;
+                       printf("%-*s", size, cmdname[n]->name);
+               }
+               putchar('\n');
+       }
+}
+
+static void list_commands(const char *exec_path, const char *pattern)
+{
+       unsigned int longest = 0;
+       char path[PATH_MAX];
+       int dirlen;
+       DIR *dir = opendir(exec_path);
+       struct dirent *de;
+
+       if (!dir) {
+               fprintf(stderr, "git: '%s': %s\n", exec_path, strerror(errno));
+               exit(1);
+       }
+
+       dirlen = strlen(exec_path);
+       if (PATH_MAX - 20 < dirlen) {
+               fprintf(stderr, "git: insanely long exec-path '%s'\n",
+                       exec_path);
+               exit(1);
+       }
+
+       memcpy(path, exec_path, dirlen);
+       path[dirlen++] = '/';
+
+       while ((de = readdir(dir)) != NULL) {
+               struct stat st;
+               int entlen;
+
+               if (strncmp(de->d_name, "git-", 4))
+                       continue;
+               strcpy(path+dirlen, de->d_name);
+               if (stat(path, &st) || /* stat, not lstat */
+                   !S_ISREG(st.st_mode) ||
+                   !(st.st_mode & S_IXUSR))
+                       continue;
+
+               entlen = strlen(de->d_name);
+               if (has_extension(de->d_name, ".exe"))
+                       entlen -= 4;
+
+               if (longest < entlen)
+                       longest = entlen;
+
+               add_cmdname(de->d_name + 4, entlen-4);
+       }
+       closedir(dir);
+
+       printf("git commands available in '%s'\n", exec_path);
+       printf("----------------------------");
+       mput_char('-', strlen(exec_path));
+       putchar('\n');
+       pretty_print_string_list(cmdname, longest - 4);
+       putchar('\n');
+}
+
+static void list_common_cmds_help(void)
+{
+       int i, longest = 0;
+
+       for (i = 0; i < ARRAY_SIZE(common_cmds); i++) {
+               if (longest < strlen(common_cmds[i].name))
+                       longest = strlen(common_cmds[i].name);
+       }
+
+       puts("The most commonly used git commands are:");
+       for (i = 0; i < ARRAY_SIZE(common_cmds); i++) {
+               printf("    %s", common_cmds[i].name);
+               mput_char(' ', longest - strlen(common_cmds[i].name) + 4);
+               puts(common_cmds[i].help);
+       }
+       puts("(use 'git help -a' to get a list of all installed git commands)");
+}
+
+static void show_man_page(const char *git_cmd)
+{
+       const char *page;
+
+       if (!strncmp(git_cmd, "git", 3))
+               page = git_cmd;
+       else {
+               int page_len = strlen(git_cmd) + 4;
+               char *p = malloc(page_len + 1);
+               strcpy(p, "git-");
+               strcpy(p + 4, git_cmd);
+               p[page_len] = 0;
+               page = p;
+       }
+
+       execlp("man", "man", page, NULL);
+}
+
+void help_unknown_cmd(const char *cmd)
+{
+       printf("git: '%s' is not a git-command\n\n", cmd);
+       list_common_cmds_help();
+       exit(1);
+}
+
+int cmd_version(int argc, const char **argv, const char *prefix)
+{
+       printf("git version %s\n", git_version_string);
+       return 0;
+}
+
+int cmd_help(int argc, const char **argv, const char *prefix)
+{
+       const char *help_cmd = argc > 1 ? argv[1] : NULL;
+       const char *exec_path = git_exec_path();
+
+       if (!help_cmd) {
+               printf("usage: %s\n\n", git_usage_string);
+               list_common_cmds_help();
+               exit(1);
+       }
+
+       else if (!strcmp(help_cmd, "--all") || !strcmp(help_cmd, "-a")) {
+               printf("usage: %s\n\n", git_usage_string);
+               if(exec_path)
+                       list_commands(exec_path, "git-*");
+               exit(1);
+       }
+
+       else
+               show_man_page(help_cmd);
+
+       return 0;
+}
+
+
index de5fc44e660e3eb6f52191dd0983744447a2fe46..7f07d2a967fdecb497344817700962e9e213d3dd 100644 (file)
@@ -36,10 +36,10 @@ enum XML_Status {
 #define PREV_BUF_SIZE 4096
 #define RANGE_HEADER_SIZE 30
 
-static int commits_on_stdin = 0;
+static int commits_on_stdin;
 
 static int got_alternates = -1;
-static int corrupt_object_found = 0;
+static int corrupt_object_found;
 
 static struct curl_slist *no_pragma_header;
 
@@ -52,7 +52,7 @@ struct alt_base
        struct alt_base *next;
 };
 
-static struct alt_base *alt = NULL;
+static struct alt_base *alt;
 
 enum object_request_state {
        WAITING,
@@ -114,7 +114,7 @@ struct remote_ls_ctx
 };
 #endif
 
-static struct object_request *object_queue_head = NULL;
+static struct object_request *object_queue_head;
 
 static size_t fwrite_sha1_file(void *ptr, size_t eltsize, size_t nmemb,
                               void *data)
index d45733ef64ecb8c153a0f62cfb193eed332402e6..2bd984576523a7f2b646095eae92d08e7476b023 100644 (file)
@@ -70,18 +70,18 @@ enum XML_Status {
 /* We allow "recursive" symbolic refs. Only within reason, though */
 #define MAXDEPTH 5
 
-static int pushing = 0;
-static int aborted = 0;
+static int pushing;
+static int aborted;
 static signed char remote_dir_exists[256];
 
 static struct curl_slist *no_pragma_header;
 static struct curl_slist *default_headers;
 
-static int push_verbosely = 0;
-static int push_all = 0;
-static int force_all = 0;
+static int push_verbosely;
+static int push_all;
+static int force_all;
 
-static struct object_list *objects = NULL;
+static struct object_list *objects;
 
 struct repo
 {
@@ -94,7 +94,7 @@ struct repo
        struct remote_lock *locks;
 };
 
-static struct repo *remote = NULL;
+static struct repo *remote;
 
 enum transfer_state {
        NEED_FETCH,
@@ -134,7 +134,7 @@ struct transfer_request
        struct transfer_request *next;
 };
 
-static struct transfer_request *request_queue_head = NULL;
+static struct transfer_request *request_queue_head;
 
 struct xml_ctx
 {
@@ -2182,49 +2182,11 @@ static void fetch_symref(const char *path, char **symref, unsigned char *sha1)
 
 static int verify_merge_base(unsigned char *head_sha1, unsigned char *branch_sha1)
 {
-       int pipe_fd[2];
-       pid_t merge_base_pid;
-       char line[PATH_MAX + 20];
-       unsigned char merge_sha1[20];
-       int verified = 0;
-
-       if (pipe(pipe_fd) < 0)
-               die("Verify merge base: pipe failed");
-
-       merge_base_pid = fork();
-       if (!merge_base_pid) {
-               static const char *args[] = {
-                       "merge-base",
-                       "-a",
-                       NULL,
-                       NULL,
-                       NULL
-               };
-               args[2] = strdup(sha1_to_hex(head_sha1));
-               args[3] = sha1_to_hex(branch_sha1);
-
-               dup2(pipe_fd[1], 1);
-               close(pipe_fd[0]);
-               close(pipe_fd[1]);
-               execv_git_cmd(args);
-               die("merge-base setup failed");
-       }
-       if (merge_base_pid < 0)
-               die("merge-base fork failed");
-
-       dup2(pipe_fd[0], 0);
-       close(pipe_fd[0]);
-       close(pipe_fd[1]);
-       while (fgets(line, sizeof(line), stdin) != NULL) {
-               if (get_sha1_hex(line, merge_sha1))
-                       die("expected sha1, got garbage:\n %s", line);
-               if (!memcmp(branch_sha1, merge_sha1, 20)) {
-                       verified = 1;
-                       break;
-               }
-       }
+       struct commit *head = lookup_commit(head_sha1);
+       struct commit *branch = lookup_commit(branch_sha1);
+       struct commit_list *merge_bases = get_merge_bases(head, branch, 1);
 
-       return verified;
+       return (merge_bases && !merge_bases->next && merge_bases->item == branch);
 }
 
 static int delete_remote_branch(char *pattern, int force)
index 7d01845d392ab891c8cfe9db9a218e4c2d70e53e..7b6875cce6c5a08db06e637abc48ce8f26216db4 100644 (file)
@@ -5,10 +5,10 @@
 #include "commit.h"
 #include "fetch.h"
 
-static int use_link = 0;
-static int use_symlink = 0;
+static int use_link;
+static int use_symlink;
 static int use_filecopy = 1;
-static int commits_on_stdin = 0;
+static int commits_on_stdin;
 
 static const char *path; /* "Remote" git repository */
 
@@ -16,7 +16,7 @@ void prefetch(unsigned char *sha1)
 {
 }
 
-static struct packed_git *packs = NULL;
+static struct packed_git *packs;
 
 static void setup_index(unsigned char *sha1)
 {
index 59f723f4047f831165b8d52ac13def398e663ac3..009caf804b43fdd644ff08991d55d0e417fd34d8 100644 (file)
@@ -2,7 +2,7 @@
 #include "cache.h"
 #include "commit.h"
 
-static int show_all = 0;
+static int show_all;
 
 static int merge_base(struct commit *rev1, struct commit *rev2)
 {
index 0498a6f45e53947e356c6a390869d3f8194f05b7..646d090c58e774bdf0f412da39f4b67fd7a696c6 100644 (file)
@@ -4,14 +4,15 @@
 
 #include "cache.h"
 
-static const char *pgm = NULL;
+static const char *pgm;
 static const char *arguments[8];
 static int one_shot, quiet;
 static int err;
 
 static void run_program(void)
 {
-       int pid = fork(), status;
+       pid_t pid = fork();
+       int status;
 
        if (pid < 0)
                die("unable to fork");
index 9a6f0d2f6b0be1307985b4bd56d0bc84abd1df02..93241385e4aee76fc42db5849365740c474b9bdd 100644 (file)
--- a/mktree.c
+++ b/mktree.c
@@ -49,7 +49,6 @@ static void write_tree(unsigned char *sha1)
        int i;
 
        qsort(entries, used, sizeof(*entries), ent_compare);
-       size = 100;
        for (size = i = 0; i < used; i++)
                size += 32 + entries[i]->len;
        buffer = xmalloc(size);
diff --git a/name-rev.c b/name-rev.c
deleted file mode 100644 (file)
index f92f14e..0000000
+++ /dev/null
@@ -1,256 +0,0 @@
-#include <stdlib.h>
-#include "cache.h"
-#include "commit.h"
-#include "tag.h"
-#include "refs.h"
-
-static const char name_rev_usage[] =
-       "git-name-rev [--tags] ( --all | --stdin | committish [committish...] )\n";
-
-typedef struct rev_name {
-       const char *tip_name;
-       int merge_traversals;
-       int generation;
-} rev_name;
-
-static long cutoff = LONG_MAX;
-
-static void name_rev(struct commit *commit,
-               const char *tip_name, int merge_traversals, int generation,
-               int deref)
-{
-       struct rev_name *name = (struct rev_name *)commit->util;
-       struct commit_list *parents;
-       int parent_number = 1;
-
-       if (!commit->object.parsed)
-               parse_commit(commit);
-
-       if (commit->date < cutoff)
-               return;
-
-       if (deref) {
-               char *new_name = xmalloc(strlen(tip_name)+3);
-               strcpy(new_name, tip_name);
-               strcat(new_name, "^0");
-               tip_name = new_name;
-
-               if (generation)
-                       die("generation: %d, but deref?", generation);
-       }
-
-       if (name == NULL) {
-               name = xmalloc(sizeof(rev_name));
-               commit->util = name;
-               goto copy_data;
-       } else if (name->merge_traversals > merge_traversals ||
-                       (name->merge_traversals == merge_traversals &&
-                        name->generation > generation)) {
-copy_data:
-               name->tip_name = tip_name;
-               name->merge_traversals = merge_traversals;
-               name->generation = generation;
-       } else
-               return;
-
-       for (parents = commit->parents;
-                       parents;
-                       parents = parents->next, parent_number++) {
-               if (parent_number > 1) {
-                       char *new_name = xmalloc(strlen(tip_name)+8);
-
-                       if (generation > 0)
-                               sprintf(new_name, "%s~%d^%d", tip_name,
-                                               generation, parent_number);
-                       else
-                               sprintf(new_name, "%s^%d", tip_name, parent_number);
-
-                       name_rev(parents->item, new_name,
-                               merge_traversals + 1 , 0, 0);
-               } else {
-                       name_rev(parents->item, tip_name, merge_traversals,
-                               generation + 1, 0);
-               }
-       }
-}
-
-static int tags_only = 0;
-
-static int name_ref(const char *path, const unsigned char *sha1)
-{
-       struct object *o = parse_object(sha1);
-       int deref = 0;
-
-       if (tags_only && strncmp(path, "refs/tags/", 10))
-               return 0;
-
-       while (o && o->type == OBJ_TAG) {
-               struct tag *t = (struct tag *) o;
-               if (!t->tagged)
-                       break; /* broken repository */
-               o = parse_object(t->tagged->sha1);
-               deref = 1;
-       }
-       if (o && o->type == OBJ_COMMIT) {
-               struct commit *commit = (struct commit *)o;
-
-               if (!strncmp(path, "refs/heads/", 11))
-                       path = path + 11;
-               else if (!strncmp(path, "refs/", 5))
-                       path = path + 5;
-
-               name_rev(commit, strdup(path), 0, 0, deref);
-       }
-       return 0;
-}
-
-/* returns a static buffer */
-static const char* get_rev_name(struct object *o)
-{
-       static char buffer[1024];
-       struct rev_name *n;
-       struct commit *c;
-
-       if (o->type != OBJ_COMMIT)
-               return "undefined";
-       c = (struct commit *) o;
-       n = c->util;
-       if (!n)
-               return "undefined";
-
-       if (!n->generation)
-               return n->tip_name;
-
-       snprintf(buffer, sizeof(buffer), "%s~%d", n->tip_name, n->generation);
-
-       return buffer;
-}
-
-int main(int argc, char **argv)
-{
-       struct object_array revs = { 0, 0, NULL };
-       int as_is = 0, all = 0, transform_stdin = 0;
-
-       setup_git_directory();
-       git_config(git_default_config);
-
-       if (argc < 2)
-               usage(name_rev_usage);
-
-       for (--argc, ++argv; argc; --argc, ++argv) {
-               unsigned char sha1[20];
-               struct object *o;
-               struct commit *commit;
-
-               if (!as_is && (*argv)[0] == '-') {
-                       if (!strcmp(*argv, "--")) {
-                               as_is = 1;
-                               continue;
-                       } else if (!strcmp(*argv, "--tags")) {
-                               tags_only = 1;
-                               continue;
-                       } else if (!strcmp(*argv, "--all")) {
-                               if (argc > 1)
-                                       die("Specify either a list, or --all, not both!");
-                               all = 1;
-                               cutoff = 0;
-                               continue;
-                       } else if (!strcmp(*argv, "--stdin")) {
-                               if (argc > 1)
-                                       die("Specify either a list, or --stdin, not both!");
-                               transform_stdin = 1;
-                               cutoff = 0;
-                               continue;
-                       }
-                       usage(name_rev_usage);
-               }
-
-               if (get_sha1(*argv, sha1)) {
-                       fprintf(stderr, "Could not get sha1 for %s. Skipping.\n",
-                                       *argv);
-                       continue;
-               }
-
-               o = deref_tag(parse_object(sha1), *argv, 0);
-               if (!o || o->type != OBJ_COMMIT) {
-                       fprintf(stderr, "Could not get commit for %s. Skipping.\n",
-                                       *argv);
-                       continue;
-               }
-
-               commit = (struct commit *)o;
-
-               if (cutoff > commit->date)
-                       cutoff = commit->date;
-
-               add_object_array((struct object *)commit, *argv, &revs);
-       }
-
-       for_each_ref(name_ref);
-
-       if (transform_stdin) {
-               char buffer[2048];
-               char *p, *p_start;
-
-               while (!feof(stdin)) {
-                       int forty = 0;
-                       p = fgets(buffer, sizeof(buffer), stdin);
-                       if (!p)
-                               break;
-
-                       for (p_start = p; *p; p++) {
-#define ishex(x) (isdigit((x)) || ((x) >= 'a' && (x) <= 'f'))
-                               if (!ishex(*p))
-                                       forty = 0;
-                               else if (++forty == 40 &&
-                                               !ishex(*(p+1))) {
-                                       unsigned char sha1[40];
-                                       const char *name = "undefined";
-                                       char c = *(p+1);
-
-                                       forty = 0;
-
-                                       *(p+1) = 0;
-                                       if (!get_sha1(p - 39, sha1)) {
-                                               struct object *o =
-                                                       lookup_object(sha1);
-                                               if (o)
-                                                       name = get_rev_name(o);
-                                       }
-                                       *(p+1) = c;
-
-                                       if (!strcmp(name, "undefined"))
-                                               continue;
-
-                                       fwrite(p_start, p - p_start + 1, 1,
-                                              stdout);
-                                       printf(" (%s)", name);
-                                       p_start = p + 1;
-                               }
-                       }
-
-                       /* flush */
-                       if (p_start != p)
-                               fwrite(p_start, p - p_start, 1, stdout);
-               }
-       } else if (all) {
-               int i, max;
-
-               max = get_max_object_index();
-               for (i = 0; i < max; i++) {
-                       struct object * obj = get_indexed_object(i);
-                       if (!obj)
-                               continue;
-                       printf("%s %s\n", sha1_to_hex(obj->sha1), get_rev_name(obj));
-               }
-       } else {
-               int i;
-               for (i = 0; i < revs.nr; i++)
-                       printf("%s %s\n",
-                               revs.objects[i].name,
-                               get_rev_name(revs.objects[i].item));
-       }
-
-       return 0;
-}
-
diff --git a/pack-objects.c b/pack-objects.c
deleted file mode 100644 (file)
index 861c7f0..0000000
+++ /dev/null
@@ -1,1376 +0,0 @@
-#include "cache.h"
-#include "object.h"
-#include "blob.h"
-#include "commit.h"
-#include "tag.h"
-#include "tree.h"
-#include "delta.h"
-#include "pack.h"
-#include "csum-file.h"
-#include "tree-walk.h"
-#include <sys/time.h>
-#include <signal.h>
-
-static const char pack_usage[] = "git-pack-objects [-q] [--no-reuse-delta] [--non-empty] [--local] [--incremental] [--window=N] [--depth=N] {--stdout | base-name} < object-list";
-
-struct object_entry {
-       unsigned char sha1[20];
-       unsigned long size;     /* uncompressed size */
-       unsigned long offset;   /* offset into the final pack file;
-                                * nonzero if already written.
-                                */
-       unsigned int depth;     /* delta depth */
-       unsigned int delta_limit;       /* base adjustment for in-pack delta */
-       unsigned int hash;      /* name hint hash */
-       enum object_type type;
-       enum object_type in_pack_type;  /* could be delta */
-       unsigned long delta_size;       /* delta data size (uncompressed) */
-       struct object_entry *delta;     /* delta base object */
-       struct packed_git *in_pack;     /* already in pack */
-       unsigned int in_pack_offset;
-       struct object_entry *delta_child; /* deltified objects who bases me */
-       struct object_entry *delta_sibling; /* other deltified objects who
-                                            * uses the same base as me
-                                            */
-       int preferred_base;     /* we do not pack this, but is encouraged to
-                                * be used as the base objectto delta huge
-                                * objects against.
-                                */
-};
-
-/*
- * Objects we are going to pack are collected in objects array (dynamically
- * expanded).  nr_objects & nr_alloc controls this array.  They are stored
- * in the order we see -- typically rev-list --objects order that gives us
- * nice "minimum seek" order.
- *
- * sorted-by-sha ans sorted-by-type are arrays of pointers that point at
- * elements in the objects array.  The former is used to build the pack
- * index (lists object names in the ascending order to help offset lookup),
- * and the latter is used to group similar things together by try_delta()
- * heuristics.
- */
-
-static unsigned char object_list_sha1[20];
-static int non_empty = 0;
-static int no_reuse_delta = 0;
-static int local = 0;
-static int incremental = 0;
-static struct object_entry **sorted_by_sha, **sorted_by_type;
-static struct object_entry *objects = NULL;
-static int nr_objects = 0, nr_alloc = 0, nr_result = 0;
-static const char *base_name;
-static unsigned char pack_file_sha1[20];
-static int progress = 1;
-static volatile sig_atomic_t progress_update = 0;
-static int window = 10;
-
-/*
- * The object names in objects array are hashed with this hashtable,
- * to help looking up the entry by object name.  Binary search from
- * sorted_by_sha is also possible but this was easier to code and faster.
- * This hashtable is built after all the objects are seen.
- */
-static int *object_ix = NULL;
-static int object_ix_hashsz = 0;
-
-/*
- * Pack index for existing packs give us easy access to the offsets into
- * corresponding pack file where each object's data starts, but the entries
- * do not store the size of the compressed representation (uncompressed
- * size is easily available by examining the pack entry header).  We build
- * a hashtable of existing packs (pack_revindex), and keep reverse index
- * here -- pack index file is sorted by object name mapping to offset; this
- * pack_revindex[].revindex array is an ordered list of offsets, so if you
- * know the offset of an object, next offset is where its packed
- * representation ends.
- */
-struct pack_revindex {
-       struct packed_git *p;
-       unsigned long *revindex;
-} *pack_revindex = NULL;
-static int pack_revindex_hashsz = 0;
-
-/*
- * stats
- */
-static int written = 0;
-static int written_delta = 0;
-static int reused = 0;
-static int reused_delta = 0;
-
-static int pack_revindex_ix(struct packed_git *p)
-{
-       unsigned long ui = (unsigned long)p;
-       int i;
-
-       ui = ui ^ (ui >> 16); /* defeat structure alignment */
-       i = (int)(ui % pack_revindex_hashsz);
-       while (pack_revindex[i].p) {
-               if (pack_revindex[i].p == p)
-                       return i;
-               if (++i == pack_revindex_hashsz)
-                       i = 0;
-       }
-       return -1 - i;
-}
-
-static void prepare_pack_ix(void)
-{
-       int num;
-       struct packed_git *p;
-       for (num = 0, p = packed_git; p; p = p->next)
-               num++;
-       if (!num)
-               return;
-       pack_revindex_hashsz = num * 11;
-       pack_revindex = xcalloc(sizeof(*pack_revindex), pack_revindex_hashsz);
-       for (p = packed_git; p; p = p->next) {
-               num = pack_revindex_ix(p);
-               num = - 1 - num;
-               pack_revindex[num].p = p;
-       }
-       /* revindex elements are lazily initialized */
-}
-
-static int cmp_offset(const void *a_, const void *b_)
-{
-       unsigned long a = *(unsigned long *) a_;
-       unsigned long b = *(unsigned long *) b_;
-       if (a < b)
-               return -1;
-       else if (a == b)
-               return 0;
-       else
-               return 1;
-}
-
-/*
- * Ordered list of offsets of objects in the pack.
- */
-static void prepare_pack_revindex(struct pack_revindex *rix)
-{
-       struct packed_git *p = rix->p;
-       int num_ent = num_packed_objects(p);
-       int i;
-       void *index = p->index_base + 256;
-
-       rix->revindex = xmalloc(sizeof(unsigned long) * (num_ent + 1));
-       for (i = 0; i < num_ent; i++) {
-               unsigned int hl = *((unsigned int *)((char *) index + 24*i));
-               rix->revindex[i] = ntohl(hl);
-       }
-       /* This knows the pack format -- the 20-byte trailer
-        * follows immediately after the last object data.
-        */
-       rix->revindex[num_ent] = p->pack_size - 20;
-       qsort(rix->revindex, num_ent, sizeof(unsigned long), cmp_offset);
-}
-
-static unsigned long find_packed_object_size(struct packed_git *p,
-                                            unsigned long ofs)
-{
-       int num;
-       int lo, hi;
-       struct pack_revindex *rix;
-       unsigned long *revindex;
-       num = pack_revindex_ix(p);
-       if (num < 0)
-               die("internal error: pack revindex uninitialized");
-       rix = &pack_revindex[num];
-       if (!rix->revindex)
-               prepare_pack_revindex(rix);
-       revindex = rix->revindex;
-       lo = 0;
-       hi = num_packed_objects(p) + 1;
-       do {
-               int mi = (lo + hi) / 2;
-               if (revindex[mi] == ofs) {
-                       return revindex[mi+1] - ofs;
-               }
-               else if (ofs < revindex[mi])
-                       hi = mi;
-               else
-                       lo = mi + 1;
-       } while (lo < hi);
-       die("internal error: pack revindex corrupt");
-}
-
-static void *delta_against(void *buf, unsigned long size, struct object_entry *entry)
-{
-       unsigned long othersize, delta_size;
-       char type[10];
-       void *otherbuf = read_sha1_file(entry->delta->sha1, type, &othersize);
-       void *delta_buf;
-
-       if (!otherbuf)
-               die("unable to read %s", sha1_to_hex(entry->delta->sha1));
-        delta_buf = diff_delta(otherbuf, othersize,
-                              buf, size, &delta_size, 0);
-        if (!delta_buf || delta_size != entry->delta_size)
-               die("delta size changed");
-        free(buf);
-        free(otherbuf);
-       return delta_buf;
-}
-
-/*
- * The per-object header is a pretty dense thing, which is
- *  - first byte: low four bits are "size", then three bits of "type",
- *    and the high bit is "size continues".
- *  - each byte afterwards: low seven bits are size continuation,
- *    with the high bit being "size continues"
- */
-static int encode_header(enum object_type type, unsigned long size, unsigned char *hdr)
-{
-       int n = 1;
-       unsigned char c;
-
-       if (type < OBJ_COMMIT || type > OBJ_DELTA)
-               die("bad type %d", type);
-
-       c = (type << 4) | (size & 15);
-       size >>= 4;
-       while (size) {
-               *hdr++ = c | 0x80;
-               c = size & 0x7f;
-               size >>= 7;
-               n++;
-       }
-       *hdr = c;
-       return n;
-}
-
-static unsigned long write_object(struct sha1file *f,
-                                 struct object_entry *entry)
-{
-       unsigned long size;
-       char type[10];
-       void *buf;
-       unsigned char header[10];
-       unsigned hdrlen, datalen;
-       enum object_type obj_type;
-       int to_reuse = 0;
-
-       if (entry->preferred_base)
-               return 0;
-
-       obj_type = entry->type;
-       if (! entry->in_pack)
-               to_reuse = 0;   /* can't reuse what we don't have */
-       else if (obj_type == OBJ_DELTA)
-               to_reuse = 1;   /* check_object() decided it for us */
-       else if (obj_type != entry->in_pack_type)
-               to_reuse = 0;   /* pack has delta which is unusable */
-       else if (entry->delta)
-               to_reuse = 0;   /* we want to pack afresh */
-       else
-               to_reuse = 1;   /* we have it in-pack undeltified,
-                                * and we do not need to deltify it.
-                                */
-
-       if (! to_reuse) {
-               buf = read_sha1_file(entry->sha1, type, &size);
-               if (!buf)
-                       die("unable to read %s", sha1_to_hex(entry->sha1));
-               if (size != entry->size)
-                       die("object %s size inconsistency (%lu vs %lu)",
-                           sha1_to_hex(entry->sha1), size, entry->size);
-               if (entry->delta) {
-                       buf = delta_against(buf, size, entry);
-                       size = entry->delta_size;
-                       obj_type = OBJ_DELTA;
-               }
-               /*
-                * The object header is a byte of 'type' followed by zero or
-                * more bytes of length.  For deltas, the 20 bytes of delta
-                * sha1 follows that.
-                */
-               hdrlen = encode_header(obj_type, size, header);
-               sha1write(f, header, hdrlen);
-
-               if (entry->delta) {
-                       sha1write(f, entry->delta, 20);
-                       hdrlen += 20;
-               }
-               datalen = sha1write_compressed(f, buf, size);
-               free(buf);
-       }
-       else {
-               struct packed_git *p = entry->in_pack;
-               use_packed_git(p);
-
-               datalen = find_packed_object_size(p, entry->in_pack_offset);
-               buf = (char *) p->pack_base + entry->in_pack_offset;
-               sha1write(f, buf, datalen);
-               unuse_packed_git(p);
-               hdrlen = 0; /* not really */
-               if (obj_type == OBJ_DELTA)
-                       reused_delta++;
-               reused++;
-       }
-       if (obj_type == OBJ_DELTA)
-               written_delta++;
-       written++;
-       return hdrlen + datalen;
-}
-
-static unsigned long write_one(struct sha1file *f,
-                              struct object_entry *e,
-                              unsigned long offset)
-{
-       if (e->offset)
-               /* offset starts from header size and cannot be zero
-                * if it is written already.
-                */
-               return offset;
-       e->offset = offset;
-       offset += write_object(f, e);
-       /* if we are deltified, write out its base object. */
-       if (e->delta)
-               offset = write_one(f, e->delta, offset);
-       return offset;
-}
-
-static void write_pack_file(void)
-{
-       int i;
-       struct sha1file *f;
-       unsigned long offset;
-       struct pack_header hdr;
-       unsigned last_percent = 999;
-       int do_progress = 0;
-
-       if (!base_name)
-               f = sha1fd(1, "<stdout>");
-       else {
-               f = sha1create("%s-%s.%s", base_name,
-                              sha1_to_hex(object_list_sha1), "pack");
-               do_progress = progress;
-       }
-       if (do_progress)
-               fprintf(stderr, "Writing %d objects.\n", nr_result);
-
-       hdr.hdr_signature = htonl(PACK_SIGNATURE);
-       hdr.hdr_version = htonl(PACK_VERSION);
-       hdr.hdr_entries = htonl(nr_result);
-       sha1write(f, &hdr, sizeof(hdr));
-       offset = sizeof(hdr);
-       if (!nr_result)
-               goto done;
-       for (i = 0; i < nr_objects; i++) {
-               offset = write_one(f, objects + i, offset);
-               if (do_progress) {
-                       unsigned percent = written * 100 / nr_result;
-                       if (progress_update || percent != last_percent) {
-                               fprintf(stderr, "%4u%% (%u/%u) done\r",
-                                       percent, written, nr_result);
-                               progress_update = 0;
-                               last_percent = percent;
-                       }
-               }
-       }
-       if (do_progress)
-               fputc('\n', stderr);
- done:
-       sha1close(f, pack_file_sha1, 1);
-}
-
-static void write_index_file(void)
-{
-       int i;
-       struct sha1file *f = sha1create("%s-%s.%s", base_name,
-                                       sha1_to_hex(object_list_sha1), "idx");
-       struct object_entry **list = sorted_by_sha;
-       struct object_entry **last = list + nr_result;
-       unsigned int array[256];
-
-       /*
-        * Write the first-level table (the list is sorted,
-        * but we use a 256-entry lookup to be able to avoid
-        * having to do eight extra binary search iterations).
-        */
-       for (i = 0; i < 256; i++) {
-               struct object_entry **next = list;
-               while (next < last) {
-                       struct object_entry *entry = *next;
-                       if (entry->sha1[0] != i)
-                               break;
-                       next++;
-               }
-               array[i] = htonl(next - sorted_by_sha);
-               list = next;
-       }
-       sha1write(f, array, 256 * sizeof(int));
-
-       /*
-        * Write the actual SHA1 entries..
-        */
-       list = sorted_by_sha;
-       for (i = 0; i < nr_result; i++) {
-               struct object_entry *entry = *list++;
-               unsigned int offset = htonl(entry->offset);
-               sha1write(f, &offset, 4);
-               sha1write(f, entry->sha1, 20);
-       }
-       sha1write(f, pack_file_sha1, 20);
-       sha1close(f, NULL, 1);
-}
-
-static int locate_object_entry_hash(const unsigned char *sha1)
-{
-       int i;
-       unsigned int ui;
-       memcpy(&ui, sha1, sizeof(unsigned int));
-       i = ui % object_ix_hashsz;
-       while (0 < object_ix[i]) {
-               if (!memcmp(sha1, objects[object_ix[i]-1].sha1, 20))
-                       return i;
-               if (++i == object_ix_hashsz)
-                       i = 0;
-       }
-       return -1 - i;
-}
-
-static struct object_entry *locate_object_entry(const unsigned char *sha1)
-{
-       int i;
-
-       if (!object_ix_hashsz)
-               return NULL;
-
-       i = locate_object_entry_hash(sha1);
-       if (0 <= i)
-               return &objects[object_ix[i]-1];
-       return NULL;
-}
-
-static void rehash_objects(void)
-{
-       int i;
-       struct object_entry *oe;
-
-       object_ix_hashsz = nr_objects * 3;
-       if (object_ix_hashsz < 1024)
-               object_ix_hashsz = 1024;
-       object_ix = xrealloc(object_ix, sizeof(int) * object_ix_hashsz);
-       memset(object_ix, 0, sizeof(int) * object_ix_hashsz);
-       for (i = 0, oe = objects; i < nr_objects; i++, oe++) {
-               int ix = locate_object_entry_hash(oe->sha1);
-               if (0 <= ix)
-                       continue;
-               ix = -1 - ix;
-               object_ix[ix] = i + 1;
-       }
-}
-
-static unsigned name_hash(const char *name)
-{
-       unsigned char c;
-       unsigned hash = 0;
-
-       /*
-        * This effectively just creates a sortable number from the
-        * last sixteen non-whitespace characters. Last characters
-        * count "most", so things that end in ".c" sort together.
-        */
-       while ((c = *name++) != 0) {
-               if (isspace(c))
-                       continue;
-               hash = (hash >> 2) + (c << 24);
-       }
-       return hash;
-}
-
-static int add_object_entry(const unsigned char *sha1, unsigned hash, int exclude)
-{
-       unsigned int idx = nr_objects;
-       struct object_entry *entry;
-       struct packed_git *p;
-       unsigned int found_offset = 0;
-       struct packed_git *found_pack = NULL;
-       int ix, status = 0;
-
-       if (!exclude) {
-               for (p = packed_git; p; p = p->next) {
-                       struct pack_entry e;
-                       if (find_pack_entry_one(sha1, &e, p)) {
-                               if (incremental)
-                                       return 0;
-                               if (local && !p->pack_local)
-                                       return 0;
-                               if (!found_pack) {
-                                       found_offset = e.offset;
-                                       found_pack = e.p;
-                               }
-                       }
-               }
-       }
-       if ((entry = locate_object_entry(sha1)) != NULL)
-               goto already_added;
-
-       if (idx >= nr_alloc) {
-               unsigned int needed = (idx + 1024) * 3 / 2;
-               objects = xrealloc(objects, needed * sizeof(*entry));
-               nr_alloc = needed;
-       }
-       entry = objects + idx;
-       nr_objects = idx + 1;
-       memset(entry, 0, sizeof(*entry));
-       memcpy(entry->sha1, sha1, 20);
-       entry->hash = hash;
-
-       if (object_ix_hashsz * 3 <= nr_objects * 4)
-               rehash_objects();
-       else {
-               ix = locate_object_entry_hash(entry->sha1);
-               if (0 <= ix)
-                       die("internal error in object hashing.");
-               object_ix[-1 - ix] = idx + 1;
-       }
-       status = 1;
-
- already_added:
-       if (progress_update) {
-               fprintf(stderr, "Counting objects...%d\r", nr_objects);
-               progress_update = 0;
-       }
-       if (exclude)
-               entry->preferred_base = 1;
-       else {
-               if (found_pack) {
-                       entry->in_pack = found_pack;
-                       entry->in_pack_offset = found_offset;
-               }
-       }
-       return status;
-}
-
-struct pbase_tree_cache {
-       unsigned char sha1[20];
-       int ref;
-       int temporary;
-       void *tree_data;
-       unsigned long tree_size;
-};
-
-static struct pbase_tree_cache *(pbase_tree_cache[256]);
-static int pbase_tree_cache_ix(const unsigned char *sha1)
-{
-       return sha1[0] % ARRAY_SIZE(pbase_tree_cache);
-}
-static int pbase_tree_cache_ix_incr(int ix)
-{
-       return (ix+1) % ARRAY_SIZE(pbase_tree_cache);
-}
-
-static struct pbase_tree {
-       struct pbase_tree *next;
-       /* This is a phony "cache" entry; we are not
-        * going to evict it nor find it through _get()
-        * mechanism -- this is for the toplevel node that
-        * would almost always change with any commit.
-        */
-       struct pbase_tree_cache pcache;
-} *pbase_tree;
-
-static struct pbase_tree_cache *pbase_tree_get(const unsigned char *sha1)
-{
-       struct pbase_tree_cache *ent, *nent;
-       void *data;
-       unsigned long size;
-       char type[20];
-       int neigh;
-       int my_ix = pbase_tree_cache_ix(sha1);
-       int available_ix = -1;
-
-       /* pbase-tree-cache acts as a limited hashtable.
-        * your object will be found at your index or within a few
-        * slots after that slot if it is cached.
-        */
-       for (neigh = 0; neigh < 8; neigh++) {
-               ent = pbase_tree_cache[my_ix];
-               if (ent && !memcmp(ent->sha1, sha1, 20)) {
-                       ent->ref++;
-                       return ent;
-               }
-               else if (((available_ix < 0) && (!ent || !ent->ref)) ||
-                        ((0 <= available_ix) &&
-                         (!ent && pbase_tree_cache[available_ix])))
-                       available_ix = my_ix;
-               if (!ent)
-                       break;
-               my_ix = pbase_tree_cache_ix_incr(my_ix);
-       }
-
-       /* Did not find one.  Either we got a bogus request or
-        * we need to read and perhaps cache.
-        */
-       data = read_sha1_file(sha1, type, &size);
-       if (!data)
-               return NULL;
-       if (strcmp(type, tree_type)) {
-               free(data);
-               return NULL;
-       }
-
-       /* We need to either cache or return a throwaway copy */
-
-       if (available_ix < 0)
-               ent = NULL;
-       else {
-               ent = pbase_tree_cache[available_ix];
-               my_ix = available_ix;
-       }
-
-       if (!ent) {
-               nent = xmalloc(sizeof(*nent));
-               nent->temporary = (available_ix < 0);
-       }
-       else {
-               /* evict and reuse */
-               free(ent->tree_data);
-               nent = ent;
-       }
-       memcpy(nent->sha1, sha1, 20);
-       nent->tree_data = data;
-       nent->tree_size = size;
-       nent->ref = 1;
-       if (!nent->temporary)
-               pbase_tree_cache[my_ix] = nent;
-       return nent;
-}
-
-static void pbase_tree_put(struct pbase_tree_cache *cache)
-{
-       if (!cache->temporary) {
-               cache->ref--;
-               return;
-       }
-       free(cache->tree_data);
-       free(cache);
-}
-
-static int name_cmp_len(const char *name)
-{
-       int i;
-       for (i = 0; name[i] && name[i] != '\n' && name[i] != '/'; i++)
-               ;
-       return i;
-}
-
-static void add_pbase_object(struct tree_desc *tree,
-                            const char *name,
-                            int cmplen,
-                            const char *fullname)
-{
-       struct name_entry entry;
-
-       while (tree_entry(tree,&entry)) {
-               unsigned long size;
-               char type[20];
-
-               if (entry.pathlen != cmplen ||
-                   memcmp(entry.path, name, cmplen) ||
-                   !has_sha1_file(entry.sha1) ||
-                   sha1_object_info(entry.sha1, type, &size))
-                       continue;
-               if (name[cmplen] != '/') {
-                       unsigned hash = name_hash(fullname);
-                       add_object_entry(entry.sha1, hash, 1);
-                       return;
-               }
-               if (!strcmp(type, tree_type)) {
-                       struct tree_desc sub;
-                       struct pbase_tree_cache *tree;
-                       const char *down = name+cmplen+1;
-                       int downlen = name_cmp_len(down);
-
-                       tree = pbase_tree_get(entry.sha1);
-                       if (!tree)
-                               return;
-                       sub.buf = tree->tree_data;
-                       sub.size = tree->tree_size;
-
-                       add_pbase_object(&sub, down, downlen, fullname);
-                       pbase_tree_put(tree);
-               }
-       }
-}
-
-static unsigned *done_pbase_paths;
-static int done_pbase_paths_num;
-static int done_pbase_paths_alloc;
-static int done_pbase_path_pos(unsigned hash)
-{
-       int lo = 0;
-       int hi = done_pbase_paths_num;
-       while (lo < hi) {
-               int mi = (hi + lo) / 2;
-               if (done_pbase_paths[mi] == hash)
-                       return mi;
-               if (done_pbase_paths[mi] < hash)
-                       hi = mi;
-               else
-                       lo = mi + 1;
-       }
-       return -lo-1;
-}
-
-static int check_pbase_path(unsigned hash)
-{
-       int pos = (!done_pbase_paths) ? -1 : done_pbase_path_pos(hash);
-       if (0 <= pos)
-               return 1;
-       pos = -pos - 1;
-       if (done_pbase_paths_alloc <= done_pbase_paths_num) {
-               done_pbase_paths_alloc = alloc_nr(done_pbase_paths_alloc);
-               done_pbase_paths = xrealloc(done_pbase_paths,
-                                           done_pbase_paths_alloc *
-                                           sizeof(unsigned));
-       }
-       done_pbase_paths_num++;
-       if (pos < done_pbase_paths_num)
-               memmove(done_pbase_paths + pos + 1,
-                       done_pbase_paths + pos,
-                       (done_pbase_paths_num - pos - 1) * sizeof(unsigned));
-       done_pbase_paths[pos] = hash;
-       return 0;
-}
-
-static void add_preferred_base_object(char *name, unsigned hash)
-{
-       struct pbase_tree *it;
-       int cmplen = name_cmp_len(name);
-
-       if (check_pbase_path(hash))
-               return;
-
-       for (it = pbase_tree; it; it = it->next) {
-               if (cmplen == 0) {
-                       hash = name_hash("");
-                       add_object_entry(it->pcache.sha1, hash, 1);
-               }
-               else {
-                       struct tree_desc tree;
-                       tree.buf = it->pcache.tree_data;
-                       tree.size = it->pcache.tree_size;
-                       add_pbase_object(&tree, name, cmplen, name);
-               }
-       }
-}
-
-static void add_preferred_base(unsigned char *sha1)
-{
-       struct pbase_tree *it;
-       void *data;
-       unsigned long size;
-       unsigned char tree_sha1[20];
-
-       data = read_object_with_reference(sha1, tree_type, &size, tree_sha1);
-       if (!data)
-               return;
-
-       for (it = pbase_tree; it; it = it->next) {
-               if (!memcmp(it->pcache.sha1, tree_sha1, 20)) {
-                       free(data);
-                       return;
-               }
-       }
-
-       it = xcalloc(1, sizeof(*it));
-       it->next = pbase_tree;
-       pbase_tree = it;
-
-       memcpy(it->pcache.sha1, tree_sha1, 20);
-       it->pcache.tree_data = data;
-       it->pcache.tree_size = size;
-}
-
-static void check_object(struct object_entry *entry)
-{
-       char type[20];
-
-       if (entry->in_pack && !entry->preferred_base) {
-               unsigned char base[20];
-               unsigned long size;
-               struct object_entry *base_entry;
-
-               /* We want in_pack_type even if we do not reuse delta.
-                * There is no point not reusing non-delta representations.
-                */
-               check_reuse_pack_delta(entry->in_pack,
-                                      entry->in_pack_offset,
-                                      base, &size,
-                                      &entry->in_pack_type);
-
-               /* Check if it is delta, and the base is also an object
-                * we are going to pack.  If so we will reuse the existing
-                * delta.
-                */
-               if (!no_reuse_delta &&
-                   entry->in_pack_type == OBJ_DELTA &&
-                   (base_entry = locate_object_entry(base)) &&
-                   (!base_entry->preferred_base)) {
-
-                       /* Depth value does not matter - find_deltas()
-                        * will never consider reused delta as the
-                        * base object to deltify other objects
-                        * against, in order to avoid circular deltas.
-                        */
-
-                       /* uncompressed size of the delta data */
-                       entry->size = entry->delta_size = size;
-                       entry->delta = base_entry;
-                       entry->type = OBJ_DELTA;
-
-                       entry->delta_sibling = base_entry->delta_child;
-                       base_entry->delta_child = entry;
-
-                       return;
-               }
-               /* Otherwise we would do the usual */
-       }
-
-       if (sha1_object_info(entry->sha1, type, &entry->size))
-               die("unable to get type of object %s",
-                   sha1_to_hex(entry->sha1));
-
-       if (!strcmp(type, commit_type)) {
-               entry->type = OBJ_COMMIT;
-       } else if (!strcmp(type, tree_type)) {
-               entry->type = OBJ_TREE;
-       } else if (!strcmp(type, blob_type)) {
-               entry->type = OBJ_BLOB;
-       } else if (!strcmp(type, tag_type)) {
-               entry->type = OBJ_TAG;
-       } else
-               die("unable to pack object %s of type %s",
-                   sha1_to_hex(entry->sha1), type);
-}
-
-static unsigned int check_delta_limit(struct object_entry *me, unsigned int n)
-{
-       struct object_entry *child = me->delta_child;
-       unsigned int m = n;
-       while (child) {
-               unsigned int c = check_delta_limit(child, n + 1);
-               if (m < c)
-                       m = c;
-               child = child->delta_sibling;
-       }
-       return m;
-}
-
-static void get_object_details(void)
-{
-       int i;
-       struct object_entry *entry;
-
-       prepare_pack_ix();
-       for (i = 0, entry = objects; i < nr_objects; i++, entry++)
-               check_object(entry);
-
-       if (nr_objects == nr_result) {
-               /*
-                * Depth of objects that depend on the entry -- this
-                * is subtracted from depth-max to break too deep
-                * delta chain because of delta data reusing.
-                * However, we loosen this restriction when we know we
-                * are creating a thin pack -- it will have to be
-                * expanded on the other end anyway, so do not
-                * artificially cut the delta chain and let it go as
-                * deep as it wants.
-                */
-               for (i = 0, entry = objects; i < nr_objects; i++, entry++)
-                       if (!entry->delta && entry->delta_child)
-                               entry->delta_limit =
-                                       check_delta_limit(entry, 1);
-       }
-}
-
-typedef int (*entry_sort_t)(const struct object_entry *, const struct object_entry *);
-
-static entry_sort_t current_sort;
-
-static int sort_comparator(const void *_a, const void *_b)
-{
-       struct object_entry *a = *(struct object_entry **)_a;
-       struct object_entry *b = *(struct object_entry **)_b;
-       return current_sort(a,b);
-}
-
-static struct object_entry **create_sorted_list(entry_sort_t sort)
-{
-       struct object_entry **list = xmalloc(nr_objects * sizeof(struct object_entry *));
-       int i;
-
-       for (i = 0; i < nr_objects; i++)
-               list[i] = objects + i;
-       current_sort = sort;
-       qsort(list, nr_objects, sizeof(struct object_entry *), sort_comparator);
-       return list;
-}
-
-static int sha1_sort(const struct object_entry *a, const struct object_entry *b)
-{
-       return memcmp(a->sha1, b->sha1, 20);
-}
-
-static struct object_entry **create_final_object_list(void)
-{
-       struct object_entry **list;
-       int i, j;
-
-       for (i = nr_result = 0; i < nr_objects; i++)
-               if (!objects[i].preferred_base)
-                       nr_result++;
-       list = xmalloc(nr_result * sizeof(struct object_entry *));
-       for (i = j = 0; i < nr_objects; i++) {
-               if (!objects[i].preferred_base)
-                       list[j++] = objects + i;
-       }
-       current_sort = sha1_sort;
-       qsort(list, nr_result, sizeof(struct object_entry *), sort_comparator);
-       return list;
-}
-
-static int type_size_sort(const struct object_entry *a, const struct object_entry *b)
-{
-       if (a->type < b->type)
-               return -1;
-       if (a->type > b->type)
-               return 1;
-       if (a->hash < b->hash)
-               return -1;
-       if (a->hash > b->hash)
-               return 1;
-       if (a->preferred_base < b->preferred_base)
-               return -1;
-       if (a->preferred_base > b->preferred_base)
-               return 1;
-       if (a->size < b->size)
-               return -1;
-       if (a->size > b->size)
-               return 1;
-       return a < b ? -1 : (a > b);
-}
-
-struct unpacked {
-       struct object_entry *entry;
-       void *data;
-       struct delta_index *index;
-};
-
-/*
- * We search for deltas _backwards_ in a list sorted by type and
- * by size, so that we see progressively smaller and smaller files.
- * That's because we prefer deltas to be from the bigger file
- * to the smaller - deletes are potentially cheaper, but perhaps
- * more importantly, the bigger file is likely the more recent
- * one.
- */
-static int try_delta(struct unpacked *trg, struct unpacked *src,
-                    unsigned max_depth)
-{
-       struct object_entry *trg_entry = trg->entry;
-       struct object_entry *src_entry = src->entry;
-       unsigned long trg_size, src_size, delta_size, sizediff, max_size, sz;
-       char type[10];
-       void *delta_buf;
-
-       /* Don't bother doing diffs between different types */
-       if (trg_entry->type != src_entry->type)
-               return -1;
-
-       /* We do not compute delta to *create* objects we are not
-        * going to pack.
-        */
-       if (trg_entry->preferred_base)
-               return -1;
-
-       /*
-        * We do not bother to try a delta that we discarded
-        * on an earlier try, but only when reusing delta data.
-        */
-       if (!no_reuse_delta && trg_entry->in_pack &&
-           trg_entry->in_pack == src_entry->in_pack)
-               return 0;
-
-       /*
-        * If the current object is at pack edge, take the depth the
-        * objects that depend on the current object into account --
-        * otherwise they would become too deep.
-        */
-       if (trg_entry->delta_child) {
-               if (max_depth <= trg_entry->delta_limit)
-                       return 0;
-               max_depth -= trg_entry->delta_limit;
-       }
-       if (src_entry->depth >= max_depth)
-               return 0;
-
-       /* Now some size filtering heuristics. */
-       trg_size = trg_entry->size;
-       max_size = trg_size/2 - 20;
-       max_size = max_size * (max_depth - src_entry->depth) / max_depth;
-       if (max_size == 0)
-               return 0;
-       if (trg_entry->delta && trg_entry->delta_size <= max_size)
-               max_size = trg_entry->delta_size-1;
-       src_size = src_entry->size;
-       sizediff = src_size < trg_size ? trg_size - src_size : 0;
-       if (sizediff >= max_size)
-               return 0;
-
-       /* Load data if not already done */
-       if (!trg->data) {
-               trg->data = read_sha1_file(trg_entry->sha1, type, &sz);
-               if (sz != trg_size)
-                       die("object %s inconsistent object length (%lu vs %lu)",
-                           sha1_to_hex(trg_entry->sha1), sz, trg_size);
-       }
-       if (!src->data) {
-               src->data = read_sha1_file(src_entry->sha1, type, &sz);
-               if (sz != src_size)
-                       die("object %s inconsistent object length (%lu vs %lu)",
-                           sha1_to_hex(src_entry->sha1), sz, src_size);
-       }
-       if (!src->index) {
-               src->index = create_delta_index(src->data, src_size);
-               if (!src->index)
-                       die("out of memory");
-       }
-
-       delta_buf = create_delta(src->index, trg->data, trg_size, &delta_size, max_size);
-       if (!delta_buf)
-               return 0;
-
-       trg_entry->delta = src_entry;
-       trg_entry->delta_size = delta_size;
-       trg_entry->depth = src_entry->depth + 1;
-       free(delta_buf);
-       return 1;
-}
-
-static void progress_interval(int signum)
-{
-       progress_update = 1;
-}
-
-static void find_deltas(struct object_entry **list, int window, int depth)
-{
-       int i, idx;
-       unsigned int array_size = window * sizeof(struct unpacked);
-       struct unpacked *array = xmalloc(array_size);
-       unsigned processed = 0;
-       unsigned last_percent = 999;
-
-       memset(array, 0, array_size);
-       i = nr_objects;
-       idx = 0;
-       if (progress)
-               fprintf(stderr, "Deltifying %d objects.\n", nr_result);
-
-       while (--i >= 0) {
-               struct object_entry *entry = list[i];
-               struct unpacked *n = array + idx;
-               int j;
-
-               if (!entry->preferred_base)
-                       processed++;
-
-               if (progress) {
-                       unsigned percent = processed * 100 / nr_result;
-                       if (percent != last_percent || progress_update) {
-                               fprintf(stderr, "%4u%% (%u/%u) done\r",
-                                       percent, processed, nr_result);
-                               progress_update = 0;
-                               last_percent = percent;
-                       }
-               }
-
-               if (entry->delta)
-                       /* This happens if we decided to reuse existing
-                        * delta from a pack.  "!no_reuse_delta &&" is implied.
-                        */
-                       continue;
-
-               if (entry->size < 50)
-                       continue;
-               free_delta_index(n->index);
-               n->index = NULL;
-               free(n->data);
-               n->data = NULL;
-               n->entry = entry;
-
-               j = window;
-               while (--j > 0) {
-                       unsigned int other_idx = idx + j;
-                       struct unpacked *m;
-                       if (other_idx >= window)
-                               other_idx -= window;
-                       m = array + other_idx;
-                       if (!m->entry)
-                               break;
-                       if (try_delta(n, m, depth) < 0)
-                               break;
-               }
-               /* if we made n a delta, and if n is already at max
-                * depth, leaving it in the window is pointless.  we
-                * should evict it first.
-                */
-               if (entry->delta && depth <= entry->depth)
-                       continue;
-
-               idx++;
-               if (idx >= window)
-                       idx = 0;
-       }
-
-       if (progress)
-               fputc('\n', stderr);
-
-       for (i = 0; i < window; ++i) {
-               free_delta_index(array[i].index);
-               free(array[i].data);
-       }
-       free(array);
-}
-
-static void prepare_pack(int window, int depth)
-{
-       get_object_details();
-       sorted_by_type = create_sorted_list(type_size_sort);
-       if (window && depth)
-               find_deltas(sorted_by_type, window+1, depth);
-}
-
-static int reuse_cached_pack(unsigned char *sha1, int pack_to_stdout)
-{
-       static const char cache[] = "pack-cache/pack-%s.%s";
-       char *cached_pack, *cached_idx;
-       int ifd, ofd, ifd_ix = -1;
-
-       cached_pack = git_path(cache, sha1_to_hex(sha1), "pack");
-       ifd = open(cached_pack, O_RDONLY);
-       if (ifd < 0)
-               return 0;
-
-       if (!pack_to_stdout) {
-               cached_idx = git_path(cache, sha1_to_hex(sha1), "idx");
-               ifd_ix = open(cached_idx, O_RDONLY);
-               if (ifd_ix < 0) {
-                       close(ifd);
-                       return 0;
-               }
-       }
-
-       if (progress)
-               fprintf(stderr, "Reusing %d objects pack %s\n", nr_objects,
-                       sha1_to_hex(sha1));
-
-       if (pack_to_stdout) {
-               if (copy_fd(ifd, 1))
-                       exit(1);
-               close(ifd);
-       }
-       else {
-               char name[PATH_MAX];
-               snprintf(name, sizeof(name),
-                        "%s-%s.%s", base_name, sha1_to_hex(sha1), "pack");
-               ofd = open(name, O_CREAT | O_EXCL | O_WRONLY, 0666);
-               if (ofd < 0)
-                       die("unable to open %s (%s)", name, strerror(errno));
-               if (copy_fd(ifd, ofd))
-                       exit(1);
-               close(ifd);
-
-               snprintf(name, sizeof(name),
-                        "%s-%s.%s", base_name, sha1_to_hex(sha1), "idx");
-               ofd = open(name, O_CREAT | O_EXCL | O_WRONLY, 0666);
-               if (ofd < 0)
-                       die("unable to open %s (%s)", name, strerror(errno));
-               if (copy_fd(ifd_ix, ofd))
-                       exit(1);
-               close(ifd_ix);
-               puts(sha1_to_hex(sha1));
-       }
-
-       return 1;
-}
-
-static void setup_progress_signal(void)
-{
-       struct sigaction sa;
-       struct itimerval v;
-
-       memset(&sa, 0, sizeof(sa));
-       sa.sa_handler = progress_interval;
-       sigemptyset(&sa.sa_mask);
-       sa.sa_flags = SA_RESTART;
-       sigaction(SIGALRM, &sa, NULL);
-
-       v.it_interval.tv_sec = 1;
-       v.it_interval.tv_usec = 0;
-       v.it_value = v.it_interval;
-       setitimer(ITIMER_REAL, &v, NULL);
-}
-
-static int git_pack_config(const char *k, const char *v)
-{
-       if(!strcmp(k, "pack.window")) {
-               window = git_config_int(k, v);
-               return 0;
-       }
-       return git_default_config(k, v);
-}
-
-int main(int argc, char **argv)
-{
-       SHA_CTX ctx;
-       char line[40 + 1 + PATH_MAX + 2];
-       int depth = 10, pack_to_stdout = 0;
-       struct object_entry **list;
-       int num_preferred_base = 0;
-       int i;
-
-       setup_git_directory();
-       git_config(git_pack_config);
-
-       progress = isatty(2);
-       for (i = 1; i < argc; i++) {
-               const char *arg = argv[i];
-
-               if (*arg == '-') {
-                       if (!strcmp("--non-empty", arg)) {
-                               non_empty = 1;
-                               continue;
-                       }
-                       if (!strcmp("--local", arg)) {
-                               local = 1;
-                               continue;
-                       }
-                       if (!strcmp("--progress", arg)) {
-                               progress = 1;
-                               continue;
-                       }
-                       if (!strcmp("--incremental", arg)) {
-                               incremental = 1;
-                               continue;
-                       }
-                       if (!strncmp("--window=", arg, 9)) {
-                               char *end;
-                               window = strtoul(arg+9, &end, 0);
-                               if (!arg[9] || *end)
-                                       usage(pack_usage);
-                               continue;
-                       }
-                       if (!strncmp("--depth=", arg, 8)) {
-                               char *end;
-                               depth = strtoul(arg+8, &end, 0);
-                               if (!arg[8] || *end)
-                                       usage(pack_usage);
-                               continue;
-                       }
-                       if (!strcmp("--progress", arg)) {
-                               progress = 1;
-                               continue;
-                       }
-                       if (!strcmp("-q", arg)) {
-                               progress = 0;
-                               continue;
-                       }
-                       if (!strcmp("--no-reuse-delta", arg)) {
-                               no_reuse_delta = 1;
-                               continue;
-                       }
-                       if (!strcmp("--stdout", arg)) {
-                               pack_to_stdout = 1;
-                               continue;
-                       }
-                       usage(pack_usage);
-               }
-               if (base_name)
-                       usage(pack_usage);
-               base_name = arg;
-       }
-
-       if (pack_to_stdout != !base_name)
-               usage(pack_usage);
-
-       prepare_packed_git();
-
-       if (progress) {
-               fprintf(stderr, "Generating pack...\n");
-               setup_progress_signal();
-       }
-
-       for (;;) {
-               unsigned char sha1[20];
-               unsigned hash;
-
-               if (!fgets(line, sizeof(line), stdin)) {
-                       if (feof(stdin))
-                               break;
-                       if (!ferror(stdin))
-                               die("fgets returned NULL, not EOF, not error!");
-                       if (errno != EINTR)
-                               die("fgets: %s", strerror(errno));
-                       clearerr(stdin);
-                       continue;
-               }
-
-               if (line[0] == '-') {
-                       if (get_sha1_hex(line+1, sha1))
-                               die("expected edge sha1, got garbage:\n %s",
-                                   line+1);
-                       if (num_preferred_base++ < window)
-                               add_preferred_base(sha1);
-                       continue;
-               }
-               if (get_sha1_hex(line, sha1))
-                       die("expected sha1, got garbage:\n %s", line);
-               hash = name_hash(line+41);
-               add_preferred_base_object(line+41, hash);
-               add_object_entry(sha1, hash, 0);
-       }
-       if (progress)
-               fprintf(stderr, "Done counting %d objects.\n", nr_objects);
-       sorted_by_sha = create_final_object_list();
-       if (non_empty && !nr_result)
-               return 0;
-
-       SHA1_Init(&ctx);
-       list = sorted_by_sha;
-       for (i = 0; i < nr_result; i++) {
-               struct object_entry *entry = *list++;
-               SHA1_Update(&ctx, entry->sha1, 20);
-       }
-       SHA1_Final(object_list_sha1, &ctx);
-       if (progress && (nr_objects != nr_result))
-               fprintf(stderr, "Result has %d objects.\n", nr_result);
-
-       if (reuse_cached_pack(object_list_sha1, pack_to_stdout))
-               ;
-       else {
-               if (nr_result)
-                       prepare_pack(window, depth);
-               if (progress && pack_to_stdout) {
-                       /* the other end usually displays progress itself */
-                       struct itimerval v = {{0,},};
-                       setitimer(ITIMER_REAL, &v, NULL);
-                       signal(SIGALRM, SIG_IGN );
-                       progress_update = 0;
-               }
-               write_pack_file();
-               if (!pack_to_stdout) {
-                       write_index_file();
-                       puts(sha1_to_hex(object_list_sha1));
-               }
-       }
-       if (progress)
-               fprintf(stderr, "Total %d, written %d (delta %d), reused %d (delta %d)\n",
-                       nr_result, written, written_delta, reused, reused_delta);
-       return 0;
-}
index 41fb960569e1c7ed479fb123902752c552ff1341..92a09ed36281b293a8c9002a33ab80f740949a37 100644 (file)
@@ -13,7 +13,7 @@
 static const char pack_redundant_usage[] =
 "git-pack-redundant [ --verbose ] [ --alt-odb ] < --all | <.pack filename> ...>";
 
-static int load_all_packs = 0, verbose = 0, alt_odb = 0;
+static int load_all_packs, verbose, alt_odb;
 
 struct llist_item {
        struct llist_item *next;
@@ -37,7 +37,7 @@ struct pll {
        struct pack_list *pl;
 };
 
-static struct llist_item *free_nodes = NULL;
+static struct llist_item *free_nodes;
 
 static inline void llist_item_put(struct llist_item *item)
 {
diff --git a/pager.c b/pager.c
index 280f57f796c84d1c1fd54e295b542c3b33490b3e..dcb398da8e703de2999badb976dee7322eff470b 100644 (file)
--- a/pager.c
+++ b/pager.c
@@ -15,10 +15,12 @@ void setup_pager(void)
 {
        pid_t pid;
        int fd[2];
-       const char *pager = getenv("PAGER");
+       const char *pager = getenv("GIT_PAGER");
 
        if (!isatty(1))
                return;
+       if (!pager)
+               pager = getenv("PAGER");
        if (!pager)
                pager = "less";
        else if (!*pager || !strcmp(pager, "cat"))
index f92cdaacee1b43bf09929e7072c281dbcbb09c10..3228ffb3001fa360dbd4f5a0907fd0b204382423 100644 (file)
@@ -5,6 +5,7 @@
  */
 #include "cache.h"
 #include "cache-tree.h"
+#include <time.h>
 
 /* Index extensions.
  *
 #define CACHE_EXT(s) ( (s[0]<<24)|(s[1]<<16)|(s[2]<<8)|(s[3]) )
 #define CACHE_EXT_TREE 0x54524545      /* "TREE" */
 
-struct cache_entry **active_cache = NULL;
+struct cache_entry **active_cache;
 static time_t index_file_timestamp;
-unsigned int active_nr = 0, active_alloc = 0, active_cache_changed = 0;
+unsigned int active_nr, active_alloc, active_cache_changed;
 
-struct cache_tree *active_cache_tree = NULL;
+struct cache_tree *active_cache_tree;
 
-int cache_errno = 0;
+int cache_errno;
 
-static void *cache_mmap = NULL;
-static size_t cache_mmap_size = 0;
+static void *cache_mmap;
+static size_t cache_mmap_size;
 
 /*
  * This only updates the "non-critical" parts of the directory
@@ -840,6 +841,18 @@ int read_cache_from(const char *path)
 static unsigned char write_buffer[WRITE_BUFFER_SIZE];
 static unsigned long write_buffer_len;
 
+static int ce_write_flush(SHA_CTX *context, int fd)
+{
+       unsigned int buffered = write_buffer_len;
+       if (buffered) {
+               SHA1_Update(context, write_buffer, buffered);
+               if (write(fd, write_buffer, buffered) != buffered)
+                       return -1;
+               write_buffer_len = 0;
+       }
+       return 0;
+}
+
 static int ce_write(SHA_CTX *context, int fd, void *data, unsigned int len)
 {
        while (len) {
@@ -850,8 +863,8 @@ static int ce_write(SHA_CTX *context, int fd, void *data, unsigned int len)
                memcpy(write_buffer + buffered, data, partial);
                buffered += partial;
                if (buffered == WRITE_BUFFER_SIZE) {
-                       SHA1_Update(context, write_buffer, WRITE_BUFFER_SIZE);
-                       if (write(fd, write_buffer, WRITE_BUFFER_SIZE) != WRITE_BUFFER_SIZE)
+                       write_buffer_len = buffered;
+                       if (ce_write_flush(context, fd))
                                return -1;
                        buffered = 0;
                }
@@ -867,10 +880,8 @@ static int write_index_ext_header(SHA_CTX *context, int fd,
 {
        ext = htonl(ext);
        sz = htonl(sz);
-       if ((ce_write(context, fd, &ext, 4) < 0) ||
-           (ce_write(context, fd, &sz, 4) < 0))
-               return -1;
-       return 0;
+       return ((ce_write(context, fd, &ext, 4) < 0) ||
+               (ce_write(context, fd, &sz, 4) < 0)) ? -1 : 0;
 }
 
 static int ce_flush(SHA_CTX *context, int fd)
@@ -892,9 +903,7 @@ static int ce_flush(SHA_CTX *context, int fd)
        /* Append the SHA1 signature at the end */
        SHA1_Final(write_buffer + left, context);
        left += 20;
-       if (write(fd, write_buffer, left) != left)
-               return -1;
-       return 0;
+       return (write(fd, write_buffer, left) != left) ? -1 : 0;
 }
 
 static void ce_smudge_racily_clean_entry(struct cache_entry *ce)
@@ -923,7 +932,7 @@ static void ce_smudge_racily_clean_entry(struct cache_entry *ce)
                 * $ echo filfre >nitfol
                 * $ git-update-index --add nitfol
                 *
-                * but it does not.  Whe the second update-index runs,
+                * but it does not.  When the second update-index runs,
                 * it notices that the entry "frotz" has the same timestamp
                 * as index, and if we were to smudge it by resetting its
                 * size to zero here, then the object name recorded
@@ -945,7 +954,9 @@ int write_cache(int newfd, struct cache_entry **cache, int entries)
 {
        SHA_CTX c;
        struct cache_header hdr;
-       int i, removed;
+       int i, removed, recent;
+       struct stat st;
+       time_t now;
 
        for (i = removed = 0; i < entries; i++)
                if (!cache[i]->ce_mode)
@@ -983,5 +994,57 @@ int write_cache(int newfd, struct cache_entry **cache, int entries)
                        return -1;
                }
        }
+
+       /*
+        * To prevent later ce_match_stat() from always falling into
+        * check_fs(), if we have too many entries that can trigger
+        * racily clean check, we are better off delaying the return.
+        * We arbitrarily say if more than 20 paths or 25% of total
+        * paths are very new, we delay the return until the index
+        * file gets a new timestamp.
+        *
+        * NOTE! NOTE! NOTE!
+        *
+        * This assumes that nobody is touching the working tree while
+        * we are updating the index.
+        */
+
+       /* Make sure that the new index file has st_mtime
+        * that is current enough -- ce_write() batches the data
+        * so it might not have written anything yet.
+        */
+       ce_write_flush(&c, newfd);
+
+       now = fstat(newfd, &st) ? 0 : st.st_mtime;
+       if (now) {
+               recent = 0;
+               for (i = 0; i < entries; i++) {
+                       struct cache_entry *ce = cache[i];
+                       time_t entry_time = (time_t) ntohl(ce->ce_mtime.sec);
+                       if (!ce->ce_mode)
+                               continue;
+                       if (now && now <= entry_time)
+                               recent++;
+               }
+               if (20 < recent && entries <= recent * 4) {
+#if 0
+                       fprintf(stderr, "entries    %d\n", entries);
+                       fprintf(stderr, "recent     %d\n", recent);
+                       fprintf(stderr, "now        %lu\n", now);
+#endif
+                       while (!fstat(newfd, &st) && st.st_mtime <= now) {
+                               struct timespec rq, rm;
+                               off_t where = lseek(newfd, 0, SEEK_CUR);
+                               rq.tv_sec = 0;
+                               rq.tv_nsec = 250000000;
+                               nanosleep(&rq, &rm);
+                               if ((where == (off_t) -1) ||
+                                   (write(newfd, "", 1) != 1) ||
+                                   (lseek(newfd, -1, SEEK_CUR) != where) ||
+                                   ftruncate(newfd, where))
+                                       break;
+                       }
+               }
+       }
        return ce_flush(&c, newfd);
 }
index 93929b5371bc0b9578ee5d3cb21c8ae6ade8cd1b..81e91909b8ac88423c550a6489285b003378c5f0 100644 (file)
@@ -8,10 +8,10 @@ static const char receive_pack_usage[] = "git-receive-pack <git-dir>";
 
 static const char *unpacker[] = { "unpack-objects", NULL };
 
-static int report_status = 0;
+static int report_status;
 
 static char capabilities[] = "report-status";
-static int capabilities_sent = 0;
+static int capabilities_sent;
 
 static int show_ref(const char *path, const unsigned char *sha1)
 {
@@ -40,7 +40,7 @@ struct command {
        char ref_name[FLEX_ARRAY]; /* more */
 };
 
-static struct command *commands = NULL;
+static struct command *commands;
 
 static int is_all_zeroes(const char *hex)
 {
index ca67ee9333e1f4125678fe607f44d75becc3cf7e..61908682b9b251ac49ae655522a3143476a888ea 100644 (file)
@@ -25,15 +25,15 @@ int run_command_v_opt(int argc, const char **argv, int flags)
        }
        for (;;) {
                int status, code;
-               int retval = waitpid(pid, &status, 0);
+               pid_t waiting = waitpid(pid, &status, 0);
 
-               if (retval < 0) {
+               if (waiting < 0) {
                        if (errno == EINTR)
                                continue;
-                       error("waitpid failed (%s)", strerror(retval));
+                       error("waitpid failed (%s)", strerror(errno));
                        return -ERR_RUN_COMMAND_WAITPID;
                }
-               if (retval != pid)
+               if (waiting != pid)
                        return -ERR_RUN_COMMAND_WAITPID_WRONG_PID;
                if (WIFSIGNALED(status))
                        return -ERR_RUN_COMMAND_WAITPID_SIGNAL;
index 10bc8bc35935c6ba3af70456781d6194c55ba274..43e10b0a620cc3d51d8905a9de36350ca6b67966 100644 (file)
@@ -9,10 +9,10 @@ static const char send_pack_usage[] =
 "git-send-pack [--all] [--exec=git-receive-pack] <remote> [<head>...]\n"
 "  --all and explicit <head> specification are mutually exclusive.";
 static const char *exec = "git-receive-pack";
-static int verbose = 0;
-static int send_all = 0;
-static int force_update = 0;
-static int use_thin_pack = 0;
+static int verbose;
+static int send_all;
+static int force_update;
+static int use_thin_pack;
 
 static int is_zero_sha1(const unsigned char *sha1)
 {
@@ -111,7 +111,7 @@ static void rev_list(int fd, struct ref *refs)
        exec_rev_list(refs);
 }
 
-static int pack_objects(int fd, struct ref *refs)
+static void pack_objects(int fd, struct ref *refs)
 {
        pid_t rev_list_pid;
 
@@ -126,7 +126,6 @@ static int pack_objects(int fd, struct ref *refs)
         * We don't wait for the rev-list pipeline in the parent:
         * we end up waiting for the other end instead
         */
-       return 0;
 }
 
 static void unmark_and_free(struct commit_list *list, unsigned int mark)
index 3db956dd5c96c6563a9505775570fbdfb4a8b720..18dece46b1e248a4e52e9ead3bf172ed6ab78236 100644 (file)
@@ -22,7 +22,7 @@
 #endif
 #endif
 
-const unsigned char null_sha1[20] = { 0, };
+const unsigned char null_sha1[20];
 
 static unsigned int sha1_file_open_flag = O_NOATIME;
 
@@ -646,8 +646,7 @@ int check_sha1_signature(const unsigned char *sha1, void *map, unsigned long siz
        return memcmp(sha1, real_sha1, 20) ? -1 : 0;
 }
 
-static void *map_sha1_file_internal(const unsigned char *sha1,
-                                   unsigned long *size)
+void *map_sha1_file(const unsigned char *sha1, unsigned long *size)
 {
        struct stat st;
        void *map;
@@ -684,10 +683,26 @@ static void *map_sha1_file_internal(const unsigned char *sha1,
        return map;
 }
 
+int legacy_loose_object(unsigned char *map)
+{
+       unsigned int word;
+
+       /*
+        * Is it a zlib-compressed buffer? If so, the first byte
+        * must be 0x78 (15-bit window size, deflated), and the
+        * first 16-bit word is evenly divisible by 31
+        */
+       word = (map[0] << 8) + map[1];
+       if (map[0] == 0x78 && !(word % 31))
+               return 1;
+       else
+               return 0;
+}
+
 static int unpack_sha1_header(z_stream *stream, unsigned char *map, unsigned long mapsize, void *buffer, unsigned long bufsiz)
 {
        unsigned char c;
-       unsigned int word, bits;
+       unsigned int bits;
        unsigned long size;
        static const char *typename[8] = {
                NULL,   /* OBJ_EXT */
@@ -703,13 +718,7 @@ static int unpack_sha1_header(z_stream *stream, unsigned char *map, unsigned lon
        stream->next_out = buffer;
        stream->avail_out = bufsiz;
 
-       /*
-        * Is it a zlib-compressed buffer? If so, the first byte
-        * must be 0x78 (15-bit window size, deflated), and the
-        * first 16-bit word is evenly divisible by 31
-        */
-       word = (map[0] << 8) + map[1];
-       if (map[0] == 0x78 && !(word % 31)) {
+       if (legacy_loose_object(map)) {
                inflateInit(stream);
                return inflate(stream, 0);
        }
@@ -1246,7 +1255,7 @@ int sha1_object_info(const unsigned char *sha1, char *type, unsigned long *sizep
        z_stream stream;
        char hdr[128];
 
-       map = map_sha1_file_internal(sha1, &mapsize);
+       map = map_sha1_file(sha1, &mapsize);
        if (!map) {
                struct pack_entry e;
 
@@ -1291,7 +1300,7 @@ void * read_sha1_file(const unsigned char *sha1, char *type, unsigned long *size
 
        if (find_pack_entry(sha1, &e))
                return read_packed_sha1(sha1, type, size);
-       map = map_sha1_file_internal(sha1, &mapsize);
+       map = map_sha1_file(sha1, &mapsize);
        if (map) {
                buf = unpack_sha1_file(map, mapsize, type, size);
                munmap(map, mapsize);
@@ -1629,7 +1638,7 @@ int write_sha1_to_fd(int fd, const unsigned char *sha1)
 {
        int retval;
        unsigned long objsize;
-       void *buf = map_sha1_file_internal(sha1, &objsize);
+       void *buf = map_sha1_file(sha1, &objsize);
 
        if (buf) {
                retval = write_buffer(fd, buf, objsize);
index c5a05faeb6b2bac74f4c5e06c5e397dc103bb190..f567454d22ada41b1565f26e7136e62b70769dfa 100644 (file)
@@ -191,7 +191,7 @@ const char *find_unique_abbrev(const unsigned char *sha1, int len)
        int status, is_null;
        static char hex[41];
 
-       is_null = !memcmp(sha1, null_sha1, 20);
+       is_null = is_null_sha1(sha1);
        memcpy(hex, sha1_to_hex(sha1), 40);
        if (len == 40 || !len)
                return hex;
index c7d8fa80e425695374f11746ae6592f52d8401d5..0b89df6ddae5cfdfa4259379fc801f5e28f7c403 100644 (file)
@@ -17,7 +17,7 @@
 static int fd_in;
 static int fd_out;
 
-static unsigned char remote_version = 0;
+static unsigned char remote_version;
 static unsigned char local_version = 1;
 
 static ssize_t force_write(int fd, void *buffer, size_t length)
@@ -36,9 +36,9 @@ static ssize_t force_write(int fd, void *buffer, size_t length)
        return ret;
 }
 
-static int prefetches = 0;
+static int prefetches;
 
-static struct object_list *in_transit = NULL;
+static struct object_list *in_transit;
 static struct object_list **end_of_transit = &in_transit;
 
 void prefetch(unsigned char *sha1)
@@ -59,7 +59,7 @@ void prefetch(unsigned char *sha1)
 }
 
 static char conn_buf[4096];
-static size_t conn_buf_posn = 0;
+static size_t conn_buf_posn;
 
 int fetch(unsigned char *sha1)
 {
index 2da66618fcdd6a0f5af35c9f30554a65eb427427..20b15eab57e1c4f7c4b306010d7d12bff2308141 100644 (file)
@@ -15,9 +15,9 @@
 #include <string.h>
 
 static unsigned char local_version = 1;
-static unsigned char remote_version = 0;
+static unsigned char remote_version;
 
-static int verbose = 0;
+static int verbose;
 
 static int serve_object(int fd_in, int fd_out) {
        ssize_t size;
diff --git a/symbolic-ref.c b/symbolic-ref.c
deleted file mode 100644 (file)
index 193c87c..0000000
+++ /dev/null
@@ -1,35 +0,0 @@
-#include "cache.h"
-
-static const char git_symbolic_ref_usage[] =
-"git-symbolic-ref name [ref]";
-
-static void check_symref(const char *HEAD)
-{
-       unsigned char sha1[20];
-       const char *git_HEAD = strdup(git_path("%s", HEAD));
-       const char *git_refs_heads_master = resolve_ref(git_HEAD, sha1, 0);
-       if (git_refs_heads_master) {
-               /* we want to strip the .git/ part */
-               int pfxlen = strlen(git_HEAD) - strlen(HEAD);
-               puts(git_refs_heads_master + pfxlen);
-       }
-       else
-               die("No such ref: %s", HEAD);
-}
-
-int main(int argc, const char **argv)
-{
-       setup_git_directory();
-       git_config(git_default_config);
-       switch (argc) {
-       case 2:
-               check_symref(argv[1]);
-               break;
-       case 3:
-               create_symref(strdup(git_path("%s", argv[1])), argv[2]);
-               break;
-       default:
-               usage(git_symbolic_ref_usage);
-       }
-       return 0;
-}
diff --git a/t/t4116-apply-reverse.sh b/t/t4116-apply-reverse.sh
new file mode 100755 (executable)
index 0000000..69aebe6
--- /dev/null
@@ -0,0 +1,46 @@
+#!/bin/sh
+#
+# Copyright (c) 2005 Junio C Hamano
+#
+
+test_description='git-apply in reverse
+
+'
+
+. ./test-lib.sh
+
+test_expect_success setup '
+
+       for i in a b c d e f g h i j k l m n; do echo $i; done >file1 &&
+       tr "[ijk]" '\''[\0\1\2]'\'' <file1 >file2 &&
+
+       git add file1 file2 &&
+       git commit -m initial &&
+       git tag initial &&
+
+       for i in a b c g h i J K L m o n p q; do echo $i; done >file1 &&
+       tr "[mon]" '\''[\0\1\2]'\'' <file1 >file2 &&
+
+       git commit -a -m second &&
+
+       git diff --binary -R initial >patch
+
+'
+
+test_expect_success 'apply in forward' '
+
+       git apply --index --binary patch &&
+       git diff initial >diff &&
+       diff -u /dev/null diff
+
+'
+
+test_expect_success 'apply in reverse' '
+
+       git apply --reverse --binary --index patch &&
+       git diff >diff &&
+       diff -u /dev/null diff
+
+'
+
+test_done
index 00a7d762ce6867d4f14d8157ddee4daec3dea0f6..6bfb899ed10606886ea3ce444f636b687bbfb66d 100755 (executable)
@@ -3,7 +3,7 @@
 # Copyright (c) 2006 Junio C Hamano
 #
 
-test_description='git grep -w
+test_description='git grep various.
 '
 
 . ./test-lib.sh
@@ -19,7 +19,9 @@ test_expect_success setup '
        echo x x xx x >x &&
        echo y yy >y &&
        echo zzz > z &&
-       git add file x y z &&
+       mkdir t &&
+       echo test >t/t &&
+       git add file x y z t/t &&
        git commit -m initial
 '
 
@@ -80,6 +82,31 @@ do
                        diff expected actual
                fi
        '
+
+       test_expect_success "grep $L (t-1)" '
+               echo "${HC}t/t:1:test" >expected &&
+               git grep -n -e test $H >actual &&
+               diff expected actual
+       '
+
+       test_expect_success "grep $L (t-2)" '
+               echo "${HC}t:1:test" >expected &&
+               (
+                       cd t &&
+                       git grep -n -e test $H
+               ) >actual &&
+               diff expected actual
+       '
+
+       test_expect_success "grep $L (t-3)" '
+               echo "${HC}t/t:1:test" >expected &&
+               (
+                       cd t &&
+                       git grep --full-name -n -e test $H
+               ) >actual &&
+               diff expected actual
+       '
+
 done
 
 test_done
index 1cdf8aa90850441d60553281a1928047563fe8a6..916f489c5b79e04035f96dd9f667f70efedb83fa 100644 (file)
@@ -15,7 +15,8 @@ static char *malloc_base(const char *base, const char *path, int pathlen)
        return newbase;
 }
 
-static int show_entry(struct diff_options *opt, const char *prefix, struct tree_desc *desc, const char *base);
+static void show_entry(struct diff_options *opt, const char *prefix, struct tree_desc *desc,
+                      const char *base);
 
 static int compare_tree_entry(struct tree_desc *t1, struct tree_desc *t2, const char *base, struct diff_options *opt)
 {
@@ -131,7 +132,8 @@ static void show_tree(struct diff_options *opt, const char *prefix, struct tree_
 }
 
 /* A file entry went away or appeared */
-static int show_entry(struct diff_options *opt, const char *prefix, struct tree_desc *desc, const char *base)
+static void show_entry(struct diff_options *opt, const char *prefix, struct tree_desc *desc,
+                      const char *base)
 {
        unsigned mode;
        const char *path;
@@ -152,11 +154,9 @@ static int show_entry(struct diff_options *opt, const char *prefix, struct tree_
 
                free(tree);
                free(newbase);
-               return 0;
+       } else {
+               opt->add_remove(opt, prefix[0], mode, sha1, base, path);
        }
-
-       opt->add_remove(opt, prefix[0], mode, sha1, base, path);
-       return 0;
 }
 
 int diff_tree(struct tree_desc *t1, struct tree_desc *t2, const char *base, struct diff_options *opt)
diff --git a/tree.c b/tree.c
index a6032e35ecb2543b6efcae252e5815b804cb6f0a..ef456be9dd0faee46435a3c3b126a36c2be58051 100644 (file)
--- a/tree.c
+++ b/tree.c
@@ -144,7 +144,7 @@ struct tree *lookup_tree(const unsigned char *sha1)
        return (struct tree *) obj;
 }
 
-static int track_tree_refs(struct tree *item)
+static void track_tree_refs(struct tree *item)
 {
        int n_refs = 0, i;
        struct object_refs *refs;
@@ -174,7 +174,6 @@ static int track_tree_refs(struct tree *item)
                refs->ref[i++] = obj;
        }
        set_object_refs(&item->object, refs);
-       return 0;
 }
 
 int parse_tree_buffer(struct tree *item, void *buffer, unsigned long size)
diff --git a/unpack-objects.c b/unpack-objects.c
deleted file mode 100644 (file)
index 48c1ee7..0000000
+++ /dev/null
@@ -1,311 +0,0 @@
-#include "cache.h"
-#include "object.h"
-#include "delta.h"
-#include "pack.h"
-#include "blob.h"
-#include "commit.h"
-#include "tag.h"
-#include "tree.h"
-
-#include <sys/time.h>
-
-static int dry_run, quiet;
-static const char unpack_usage[] = "git-unpack-objects [-n] [-q] < pack-file";
-
-/* We always read in 4kB chunks. */
-static unsigned char buffer[4096];
-static unsigned long offset, len, eof;
-static SHA_CTX ctx;
-
-/*
- * Make sure at least "min" bytes are available in the buffer, and
- * return the pointer to the buffer.
- */
-static void * fill(int min)
-{
-       if (min <= len)
-               return buffer + offset;
-       if (eof)
-               die("unable to fill input");
-       if (min > sizeof(buffer))
-               die("cannot fill %d bytes", min);
-       if (offset) {
-               SHA1_Update(&ctx, buffer, offset);
-               memcpy(buffer, buffer + offset, len);
-               offset = 0;
-       }
-       do {
-               int ret = xread(0, buffer + len, sizeof(buffer) - len);
-               if (ret <= 0) {
-                       if (!ret)
-                               die("early EOF");
-                       die("read error on input: %s", strerror(errno));
-               }
-               len += ret;
-       } while (len < min);
-       return buffer;
-}
-
-static void use(int bytes)
-{
-       if (bytes > len)
-               die("used more bytes than were available");
-       len -= bytes;
-       offset += bytes;
-}
-
-static void *get_data(unsigned long size)
-{
-       z_stream stream;
-       void *buf = xmalloc(size);
-
-       memset(&stream, 0, sizeof(stream));
-
-       stream.next_out = buf;
-       stream.avail_out = size;
-       stream.next_in = fill(1);
-       stream.avail_in = len;
-       inflateInit(&stream);
-
-       for (;;) {
-               int ret = inflate(&stream, 0);
-               use(len - stream.avail_in);
-               if (stream.total_out == size && ret == Z_STREAM_END)
-                       break;
-               if (ret != Z_OK)
-                       die("inflate returned %d\n", ret);
-               stream.next_in = fill(1);
-               stream.avail_in = len;
-       }
-       inflateEnd(&stream);
-       return buf;
-}
-
-struct delta_info {
-       unsigned char base_sha1[20];
-       unsigned long size;
-       void *delta;
-       struct delta_info *next;
-};
-
-static struct delta_info *delta_list;
-
-static void add_delta_to_list(unsigned char *base_sha1, void *delta, unsigned long size)
-{
-       struct delta_info *info = xmalloc(sizeof(*info));
-
-       memcpy(info->base_sha1, base_sha1, 20);
-       info->size = size;
-       info->delta = delta;
-       info->next = delta_list;
-       delta_list = info;
-}
-
-static void added_object(unsigned char *sha1, const char *type, void *data, unsigned long size);
-
-static void write_object(void *buf, unsigned long size, const char *type)
-{
-       unsigned char sha1[20];
-       if (write_sha1_file(buf, size, type, sha1) < 0)
-               die("failed to write object");
-       added_object(sha1, type, buf, size);
-}
-
-static int resolve_delta(const char *type,
-       void *base, unsigned long base_size, 
-       void *delta, unsigned long delta_size)
-{
-       void *result;
-       unsigned long result_size;
-
-       result = patch_delta(base, base_size,
-                            delta, delta_size,
-                            &result_size);
-       if (!result)
-               die("failed to apply delta");
-       free(delta);
-       write_object(result, result_size, type);
-       free(result);
-       return 0;
-}
-
-static void added_object(unsigned char *sha1, const char *type, void *data, unsigned long size)
-{
-       struct delta_info **p = &delta_list;
-       struct delta_info *info;
-
-       while ((info = *p) != NULL) {
-               if (!memcmp(info->base_sha1, sha1, 20)) {
-                       *p = info->next;
-                       p = &delta_list;
-                       resolve_delta(type, data, size, info->delta, info->size);
-                       free(info);
-                       continue;
-               }
-               p = &info->next;
-       }
-}
-
-static int unpack_non_delta_entry(enum object_type kind, unsigned long size)
-{
-       void *buf = get_data(size);
-       const char *type;
-
-       switch (kind) {
-       case OBJ_COMMIT: type = commit_type; break;
-       case OBJ_TREE:   type = tree_type; break;
-       case OBJ_BLOB:   type = blob_type; break;
-       case OBJ_TAG:    type = tag_type; break;
-       default: die("bad type %d", kind);
-       }
-       if (!dry_run)
-               write_object(buf, size, type);
-       free(buf);
-       return 0;
-}
-
-static int unpack_delta_entry(unsigned long delta_size)
-{
-       void *delta_data, *base;
-       unsigned long base_size;
-       char type[20];
-       unsigned char base_sha1[20];
-       int result;
-
-       memcpy(base_sha1, fill(20), 20);
-       use(20);
-
-       delta_data = get_data(delta_size);
-       if (dry_run) {
-               free(delta_data);
-               return 0;
-       }
-
-       if (!has_sha1_file(base_sha1)) {
-               add_delta_to_list(base_sha1, delta_data, delta_size);
-               return 0;
-       }
-       base = read_sha1_file(base_sha1, type, &base_size);
-       if (!base)
-               die("failed to read delta-pack base object %s", sha1_to_hex(base_sha1));
-       result = resolve_delta(type, base, base_size, delta_data, delta_size);
-       free(base);
-       return result;
-}
-
-static void unpack_one(unsigned nr, unsigned total)
-{
-       unsigned shift;
-       unsigned char *pack, c;
-       unsigned long size;
-       enum object_type type;
-
-       pack = fill(1);
-       c = *pack;
-       use(1);
-       type = (c >> 4) & 7;
-       size = (c & 15);
-       shift = 4;
-       while (c & 0x80) {
-               pack = fill(1);
-               c = *pack++;
-               use(1);
-               size += (c & 0x7f) << shift;
-               shift += 7;
-       }
-       if (!quiet) {
-               static unsigned long last_sec;
-               static unsigned last_percent;
-               struct timeval now;
-               unsigned percentage = (nr * 100) / total;
-
-               gettimeofday(&now, NULL);
-               if (percentage != last_percent || now.tv_sec != last_sec) {
-                       last_sec = now.tv_sec;
-                       last_percent = percentage;
-                       fprintf(stderr, "%4u%% (%u/%u) done\r", percentage, nr, total);
-               }
-       }
-       switch (type) {
-       case OBJ_COMMIT:
-       case OBJ_TREE:
-       case OBJ_BLOB:
-       case OBJ_TAG:
-               unpack_non_delta_entry(type, size);
-               return;
-       case OBJ_DELTA:
-               unpack_delta_entry(size);
-               return;
-       default:
-               die("bad object type %d", type);
-       }
-}
-
-static void unpack_all(void)
-{
-       int i;
-       struct pack_header *hdr = fill(sizeof(struct pack_header));
-       unsigned nr_objects = ntohl(hdr->hdr_entries);
-
-       if (ntohl(hdr->hdr_signature) != PACK_SIGNATURE)
-               die("bad pack file");
-       if (!pack_version_ok(hdr->hdr_version))
-               die("unknown pack file version %d", ntohl(hdr->hdr_version));
-       fprintf(stderr, "Unpacking %d objects\n", nr_objects);
-
-       use(sizeof(struct pack_header));
-       for (i = 0; i < nr_objects; i++)
-               unpack_one(i+1, nr_objects);
-       if (delta_list)
-               die("unresolved deltas left after unpacking");
-}
-
-int main(int argc, char **argv)
-{
-       int i;
-       unsigned char sha1[20];
-
-       setup_git_directory();
-
-       quiet = !isatty(2);
-
-       for (i = 1 ; i < argc; i++) {
-               const char *arg = argv[i];
-
-               if (*arg == '-') {
-                       if (!strcmp(arg, "-n")) {
-                               dry_run = 1;
-                               continue;
-                       }
-                       if (!strcmp(arg, "-q")) {
-                               quiet = 1;
-                               continue;
-                       }
-                       usage(unpack_usage);
-               }
-
-               /* We don't take any non-flag arguments now.. Maybe some day */
-               usage(unpack_usage);
-       }
-       SHA1_Init(&ctx);
-       unpack_all();
-       SHA1_Update(&ctx, buffer, offset);
-       SHA1_Final(sha1, &ctx);
-       if (memcmp(fill(20), sha1, 20))
-               die("final sha1 did not match");
-       use(20);
-
-       /* Write the last part of the buffer to stdout */
-       while (len) {
-               int ret = xwrite(1, buffer + offset, len);
-               if (ret <= 0)
-                       break;
-               len -= ret;
-               offset += ret;
-       }
-
-       /* All done */
-       if (!quiet)
-               fprintf(stderr, "\n");
-       return 0;
-}
diff --git a/unpack-trees.c b/unpack-trees.c
new file mode 100644 (file)
index 0000000..43ed124
--- /dev/null
@@ -0,0 +1,799 @@
+#include <signal.h>
+#include <sys/time.h>
+#include "cache.h"
+#include "tree.h"
+#include "tree-walk.h"
+#include "cache-tree.h"
+#include "unpack-trees.h"
+
+#define DBRT_DEBUG 1
+
+struct tree_entry_list {
+       struct tree_entry_list *next;
+       unsigned directory : 1;
+       unsigned executable : 1;
+       unsigned symlink : 1;
+       unsigned int mode;
+       const char *name;
+       const unsigned char *sha1;
+};
+
+static struct tree_entry_list *create_tree_entry_list(struct tree *tree)
+{
+       struct tree_desc desc;
+       struct name_entry one;
+       struct tree_entry_list *ret = NULL;
+       struct tree_entry_list **list_p = &ret;
+
+       if (!tree->object.parsed)
+               parse_tree(tree);
+
+       desc.buf = tree->buffer;
+       desc.size = tree->size;
+
+       while (tree_entry(&desc, &one)) {
+               struct tree_entry_list *entry;
+
+               entry = xmalloc(sizeof(struct tree_entry_list));
+               entry->name = one.path;
+               entry->sha1 = one.sha1;
+               entry->mode = one.mode;
+               entry->directory = S_ISDIR(one.mode) != 0;
+               entry->executable = (one.mode & S_IXUSR) != 0;
+               entry->symlink = S_ISLNK(one.mode) != 0;
+               entry->next = NULL;
+
+               *list_p = entry;
+               list_p = &entry->next;
+       }
+       return ret;
+}
+
+static int entcmp(const char *name1, int dir1, const char *name2, int dir2)
+{
+       int len1 = strlen(name1);
+       int len2 = strlen(name2);
+       int len = len1 < len2 ? len1 : len2;
+       int ret = memcmp(name1, name2, len);
+       unsigned char c1, c2;
+       if (ret)
+               return ret;
+       c1 = name1[len];
+       c2 = name2[len];
+       if (!c1 && dir1)
+               c1 = '/';
+       if (!c2 && dir2)
+               c2 = '/';
+       ret = (c1 < c2) ? -1 : (c1 > c2) ? 1 : 0;
+       if (c1 && c2 && !ret)
+               ret = len1 - len2;
+       return ret;
+}
+
+static int unpack_trees_rec(struct tree_entry_list **posns, int len,
+                           const char *base, struct unpack_trees_options *o,
+                           int *indpos,
+                           struct tree_entry_list *df_conflict_list)
+{
+       int baselen = strlen(base);
+       int src_size = len + 1;
+       do {
+               int i;
+               const char *first;
+               int firstdir = 0;
+               int pathlen;
+               unsigned ce_size;
+               struct tree_entry_list **subposns;
+               struct cache_entry **src;
+               int any_files = 0;
+               int any_dirs = 0;
+               char *cache_name;
+               int ce_stage;
+
+               /* Find the first name in the input. */
+
+               first = NULL;
+               cache_name = NULL;
+
+               /* Check the cache */
+               if (o->merge && *indpos < active_nr) {
+                       /* This is a bit tricky: */
+                       /* If the index has a subdirectory (with
+                        * contents) as the first name, it'll get a
+                        * filename like "foo/bar". But that's after
+                        * "foo", so the entry in trees will get
+                        * handled first, at which point we'll go into
+                        * "foo", and deal with "bar" from the index,
+                        * because the base will be "foo/". The only
+                        * way we can actually have "foo/bar" first of
+                        * all the things is if the trees don't
+                        * contain "foo" at all, in which case we'll
+                        * handle "foo/bar" without going into the
+                        * directory, but that's fine (and will return
+                        * an error anyway, with the added unknown
+                        * file case.
+                        */
+
+                       cache_name = active_cache[*indpos]->name;
+                       if (strlen(cache_name) > baselen &&
+                           !memcmp(cache_name, base, baselen)) {
+                               cache_name += baselen;
+                               first = cache_name;
+                       } else {
+                               cache_name = NULL;
+                       }
+               }
+
+#if DBRT_DEBUG > 1
+               if (first)
+                       printf("index %s\n", first);
+#endif
+               for (i = 0; i < len; i++) {
+                       if (!posns[i] || posns[i] == df_conflict_list)
+                               continue;
+#if DBRT_DEBUG > 1
+                       printf("%d %s\n", i + 1, posns[i]->name);
+#endif
+                       if (!first || entcmp(first, firstdir,
+                                            posns[i]->name,
+                                            posns[i]->directory) > 0) {
+                               first = posns[i]->name;
+                               firstdir = posns[i]->directory;
+                       }
+               }
+               /* No name means we're done */
+               if (!first)
+                       return 0;
+
+               pathlen = strlen(first);
+               ce_size = cache_entry_size(baselen + pathlen);
+
+               src = xcalloc(src_size, sizeof(struct cache_entry *));
+
+               subposns = xcalloc(len, sizeof(struct tree_list_entry *));
+
+               if (cache_name && !strcmp(cache_name, first)) {
+                       any_files = 1;
+                       src[0] = active_cache[*indpos];
+                       remove_cache_entry_at(*indpos);
+               }
+
+               for (i = 0; i < len; i++) {
+                       struct cache_entry *ce;
+
+                       if (!posns[i] ||
+                           (posns[i] != df_conflict_list &&
+                            strcmp(first, posns[i]->name))) {
+                               continue;
+                       }
+
+                       if (posns[i] == df_conflict_list) {
+                               src[i + o->merge] = o->df_conflict_entry;
+                               continue;
+                       }
+
+                       if (posns[i]->directory) {
+                               struct tree *tree = lookup_tree(posns[i]->sha1);
+                               any_dirs = 1;
+                               parse_tree(tree);
+                               subposns[i] = create_tree_entry_list(tree);
+                               posns[i] = posns[i]->next;
+                               src[i + o->merge] = o->df_conflict_entry;
+                               continue;
+                       }
+
+                       if (!o->merge)
+                               ce_stage = 0;
+                       else if (i + 1 < o->head_idx)
+                               ce_stage = 1;
+                       else if (i + 1 > o->head_idx)
+                               ce_stage = 3;
+                       else
+                               ce_stage = 2;
+
+                       ce = xcalloc(1, ce_size);
+                       ce->ce_mode = create_ce_mode(posns[i]->mode);
+                       ce->ce_flags = create_ce_flags(baselen + pathlen,
+                                                      ce_stage);
+                       memcpy(ce->name, base, baselen);
+                       memcpy(ce->name + baselen, first, pathlen + 1);
+
+                       any_files = 1;
+
+                       memcpy(ce->sha1, posns[i]->sha1, 20);
+                       src[i + o->merge] = ce;
+                       subposns[i] = df_conflict_list;
+                       posns[i] = posns[i]->next;
+               }
+               if (any_files) {
+                       if (o->merge) {
+                               int ret;
+
+#if DBRT_DEBUG > 1
+                               printf("%s:\n", first);
+                               for (i = 0; i < src_size; i++) {
+                                       printf(" %d ", i);
+                                       if (src[i])
+                                               printf("%s\n", sha1_to_hex(src[i]->sha1));
+                                       else
+                                               printf("\n");
+                               }
+#endif
+                               ret = o->fn(src, o);
+
+#if DBRT_DEBUG > 1
+                               printf("Added %d entries\n", ret);
+#endif
+                               *indpos += ret;
+                       } else {
+                               for (i = 0; i < src_size; i++) {
+                                       if (src[i]) {
+                                               add_cache_entry(src[i], ADD_CACHE_OK_TO_ADD|ADD_CACHE_SKIP_DFCHECK);
+                                       }
+                               }
+                       }
+               }
+               if (any_dirs) {
+                       char *newbase = xmalloc(baselen + 2 + pathlen);
+                       memcpy(newbase, base, baselen);
+                       memcpy(newbase + baselen, first, pathlen);
+                       newbase[baselen + pathlen] = '/';
+                       newbase[baselen + pathlen + 1] = '\0';
+                       if (unpack_trees_rec(subposns, len, newbase, o,
+                                            indpos, df_conflict_list))
+                               return -1;
+                       free(newbase);
+               }
+               free(subposns);
+               free(src);
+       } while (1);
+}
+
+/* Unlink the last component and attempt to remove leading
+ * directories, in case this unlink is the removal of the
+ * last entry in the directory -- empty directories are removed.
+ */
+static void unlink_entry(char *name)
+{
+       char *cp, *prev;
+
+       if (unlink(name))
+               return;
+       prev = NULL;
+       while (1) {
+               int status;
+               cp = strrchr(name, '/');
+               if (prev)
+                       *prev = '/';
+               if (!cp)
+                       break;
+
+               *cp = 0;
+               status = rmdir(name);
+               if (status) {
+                       *cp = '/';
+                       break;
+               }
+               prev = cp;
+       }
+}
+
+static volatile sig_atomic_t progress_update;
+
+static void progress_interval(int signum)
+{
+       progress_update = 1;
+}
+
+static void setup_progress_signal(void)
+{
+       struct sigaction sa;
+       struct itimerval v;
+
+       memset(&sa, 0, sizeof(sa));
+       sa.sa_handler = progress_interval;
+       sigemptyset(&sa.sa_mask);
+       sa.sa_flags = SA_RESTART;
+       sigaction(SIGALRM, &sa, NULL);
+
+       v.it_interval.tv_sec = 1;
+       v.it_interval.tv_usec = 0;
+       v.it_value = v.it_interval;
+       setitimer(ITIMER_REAL, &v, NULL);
+}
+
+static struct checkout state;
+static void check_updates(struct cache_entry **src, int nr,
+               struct unpack_trees_options *o)
+{
+       unsigned short mask = htons(CE_UPDATE);
+       unsigned last_percent = 200, cnt = 0, total = 0;
+
+       if (o->update && o->verbose_update) {
+               for (total = cnt = 0; cnt < nr; cnt++) {
+                       struct cache_entry *ce = src[cnt];
+                       if (!ce->ce_mode || ce->ce_flags & mask)
+                               total++;
+               }
+
+               /* Don't bother doing this for very small updates */
+               if (total < 250)
+                       total = 0;
+
+               if (total) {
+                       fprintf(stderr, "Checking files out...\n");
+                       setup_progress_signal();
+                       progress_update = 1;
+               }
+               cnt = 0;
+       }
+
+       while (nr--) {
+               struct cache_entry *ce = *src++;
+
+               if (total) {
+                       if (!ce->ce_mode || ce->ce_flags & mask) {
+                               unsigned percent;
+                               cnt++;
+                               percent = (cnt * 100) / total;
+                               if (percent != last_percent ||
+                                   progress_update) {
+                                       fprintf(stderr, "%4u%% (%u/%u) done\r",
+                                               percent, cnt, total);
+                                       last_percent = percent;
+                                       progress_update = 0;
+                               }
+                       }
+               }
+               if (!ce->ce_mode) {
+                       if (o->update)
+                               unlink_entry(ce->name);
+                       continue;
+               }
+               if (ce->ce_flags & mask) {
+                       ce->ce_flags &= ~mask;
+                       if (o->update)
+                               checkout_entry(ce, &state, NULL);
+               }
+       }
+       if (total) {
+               signal(SIGALRM, SIG_IGN);
+               fputc('\n', stderr);
+       }
+}
+
+int unpack_trees(struct object_list *trees, struct unpack_trees_options *o)
+{
+       int indpos = 0;
+       unsigned len = object_list_length(trees);
+       struct tree_entry_list **posns;
+       int i;
+       struct object_list *posn = trees;
+       struct tree_entry_list df_conflict_list;
+       struct cache_entry df_conflict_entry;
+
+       memset(&df_conflict_list, 0, sizeof(df_conflict_list));
+       df_conflict_list.next = &df_conflict_list;
+       memset(&state, 0, sizeof(state));
+       state.base_dir = "";
+       state.force = 1;
+       state.quiet = 1;
+       state.refresh_cache = 1;
+
+       o->merge_size = len;
+       memset(&df_conflict_entry, 0, sizeof(df_conflict_entry));
+       o->df_conflict_entry = &df_conflict_entry;
+
+       if (len) {
+               posns = xmalloc(len * sizeof(struct tree_entry_list *));
+               for (i = 0; i < len; i++) {
+                       posns[i] = create_tree_entry_list((struct tree *) posn->item);
+                       posn = posn->next;
+               }
+               if (unpack_trees_rec(posns, len, o->prefix ? o->prefix : "",
+                                    o, &indpos, &df_conflict_list))
+                       return -1;
+       }
+
+       if (o->trivial_merges_only && o->nontrivial_merge)
+               die("Merge requires file-level merging");
+
+       check_updates(active_cache, active_nr, o);
+       return 0;
+}
+
+/* Here come the merge functions */
+
+static void reject_merge(struct cache_entry *ce)
+{
+       die("Entry '%s' would be overwritten by merge. Cannot merge.",
+           ce->name);
+}
+
+static int same(struct cache_entry *a, struct cache_entry *b)
+{
+       if (!!a != !!b)
+               return 0;
+       if (!a && !b)
+               return 1;
+       return a->ce_mode == b->ce_mode &&
+               !memcmp(a->sha1, b->sha1, 20);
+}
+
+
+/*
+ * When a CE gets turned into an unmerged entry, we
+ * want it to be up-to-date
+ */
+static void verify_uptodate(struct cache_entry *ce,
+               struct unpack_trees_options *o)
+{
+       struct stat st;
+
+       if (o->index_only || o->reset)
+               return;
+
+       if (!lstat(ce->name, &st)) {
+               unsigned changed = ce_match_stat(ce, &st, 1);
+               if (!changed)
+                       return;
+               errno = 0;
+       }
+       if (o->reset) {
+               ce->ce_flags |= htons(CE_UPDATE);
+               return;
+       }
+       if (errno == ENOENT)
+               return;
+       die("Entry '%s' not uptodate. Cannot merge.", ce->name);
+}
+
+static void invalidate_ce_path(struct cache_entry *ce)
+{
+       if (ce)
+               cache_tree_invalidate_path(active_cache_tree, ce->name);
+}
+
+/*
+ * We do not want to remove or overwrite a working tree file that
+ * is not tracked.
+ */
+static void verify_absent(const char *path, const char *action,
+               struct unpack_trees_options *o)
+{
+       struct stat st;
+
+       if (o->index_only || o->reset || !o->update)
+               return;
+       if (!lstat(path, &st))
+               die("Untracked working tree file '%s' "
+                   "would be %s by merge.", path, action);
+}
+
+static int merged_entry(struct cache_entry *merge, struct cache_entry *old,
+               struct unpack_trees_options *o)
+{
+       merge->ce_flags |= htons(CE_UPDATE);
+       if (old) {
+               /*
+                * See if we can re-use the old CE directly?
+                * That way we get the uptodate stat info.
+                *
+                * This also removes the UPDATE flag on
+                * a match.
+                */
+               if (same(old, merge)) {
+                       *merge = *old;
+               } else {
+                       verify_uptodate(old, o);
+                       invalidate_ce_path(old);
+               }
+       }
+       else {
+               verify_absent(merge->name, "overwritten", o);
+               invalidate_ce_path(merge);
+       }
+
+       merge->ce_flags &= ~htons(CE_STAGEMASK);
+       add_cache_entry(merge, ADD_CACHE_OK_TO_ADD|ADD_CACHE_OK_TO_REPLACE);
+       return 1;
+}
+
+static int deleted_entry(struct cache_entry *ce, struct cache_entry *old,
+               struct unpack_trees_options *o)
+{
+       if (old)
+               verify_uptodate(old, o);
+       else
+               verify_absent(ce->name, "removed", o);
+       ce->ce_mode = 0;
+       add_cache_entry(ce, ADD_CACHE_OK_TO_ADD|ADD_CACHE_OK_TO_REPLACE);
+       invalidate_ce_path(ce);
+       return 1;
+}
+
+static int keep_entry(struct cache_entry *ce)
+{
+       add_cache_entry(ce, ADD_CACHE_OK_TO_ADD);
+       return 1;
+}
+
+#if DBRT_DEBUG
+static void show_stage_entry(FILE *o,
+                            const char *label, const struct cache_entry *ce)
+{
+       if (!ce)
+               fprintf(o, "%s (missing)\n", label);
+       else
+               fprintf(o, "%s%06o %s %d\t%s\n",
+                       label,
+                       ntohl(ce->ce_mode),
+                       sha1_to_hex(ce->sha1),
+                       ce_stage(ce),
+                       ce->name);
+}
+#endif
+
+int threeway_merge(struct cache_entry **stages,
+               struct unpack_trees_options *o)
+{
+       struct cache_entry *index;
+       struct cache_entry *head;
+       struct cache_entry *remote = stages[o->head_idx + 1];
+       int count;
+       int head_match = 0;
+       int remote_match = 0;
+       const char *path = NULL;
+
+       int df_conflict_head = 0;
+       int df_conflict_remote = 0;
+
+       int any_anc_missing = 0;
+       int no_anc_exists = 1;
+       int i;
+
+       for (i = 1; i < o->head_idx; i++) {
+               if (!stages[i])
+                       any_anc_missing = 1;
+               else {
+                       if (!path)
+                               path = stages[i]->name;
+                       no_anc_exists = 0;
+               }
+       }
+
+       index = stages[0];
+       head = stages[o->head_idx];
+
+       if (head == o->df_conflict_entry) {
+               df_conflict_head = 1;
+               head = NULL;
+       }
+
+       if (remote == o->df_conflict_entry) {
+               df_conflict_remote = 1;
+               remote = NULL;
+       }
+
+       if (!path && index)
+               path = index->name;
+       if (!path && head)
+               path = head->name;
+       if (!path && remote)
+               path = remote->name;
+
+       /* First, if there's a #16 situation, note that to prevent #13
+        * and #14.
+        */
+       if (!same(remote, head)) {
+               for (i = 1; i < o->head_idx; i++) {
+                       if (same(stages[i], head)) {
+                               head_match = i;
+                       }
+                       if (same(stages[i], remote)) {
+                               remote_match = i;
+                       }
+               }
+       }
+
+       /* We start with cases where the index is allowed to match
+        * something other than the head: #14(ALT) and #2ALT, where it
+        * is permitted to match the result instead.
+        */
+       /* #14, #14ALT, #2ALT */
+       if (remote && !df_conflict_head && head_match && !remote_match) {
+               if (index && !same(index, remote) && !same(index, head))
+                       reject_merge(index);
+               return merged_entry(remote, index, o);
+       }
+       /*
+        * If we have an entry in the index cache, then we want to
+        * make sure that it matches head.
+        */
+       if (index && !same(index, head)) {
+               reject_merge(index);
+       }
+
+       if (head) {
+               /* #5ALT, #15 */
+               if (same(head, remote))
+                       return merged_entry(head, index, o);
+               /* #13, #3ALT */
+               if (!df_conflict_remote && remote_match && !head_match)
+                       return merged_entry(head, index, o);
+       }
+
+       /* #1 */
+       if (!head && !remote && any_anc_missing)
+               return 0;
+
+       /* Under the new "aggressive" rule, we resolve mostly trivial
+        * cases that we historically had git-merge-one-file resolve.
+        */
+       if (o->aggressive) {
+               int head_deleted = !head && !df_conflict_head;
+               int remote_deleted = !remote && !df_conflict_remote;
+               /*
+                * Deleted in both.
+                * Deleted in one and unchanged in the other.
+                */
+               if ((head_deleted && remote_deleted) ||
+                   (head_deleted && remote && remote_match) ||
+                   (remote_deleted && head && head_match)) {
+                       if (index)
+                               return deleted_entry(index, index, o);
+                       else if (path)
+                               verify_absent(path, "removed", o);
+                       return 0;
+               }
+               /*
+                * Added in both, identically.
+                */
+               if (no_anc_exists && head && remote && same(head, remote))
+                       return merged_entry(head, index, o);
+
+       }
+
+       /* Below are "no merge" cases, which require that the index be
+        * up-to-date to avoid the files getting overwritten with
+        * conflict resolution files.
+        */
+       if (index) {
+               verify_uptodate(index, o);
+       }
+       else if (path)
+               verify_absent(path, "overwritten", o);
+
+       o->nontrivial_merge = 1;
+
+       /* #2, #3, #4, #6, #7, #9, #11. */
+       count = 0;
+       if (!head_match || !remote_match) {
+               for (i = 1; i < o->head_idx; i++) {
+                       if (stages[i]) {
+                               keep_entry(stages[i]);
+                               count++;
+                               break;
+                       }
+               }
+       }
+#if DBRT_DEBUG
+       else {
+               fprintf(stderr, "read-tree: warning #16 detected\n");
+               show_stage_entry(stderr, "head   ", stages[head_match]);
+               show_stage_entry(stderr, "remote ", stages[remote_match]);
+       }
+#endif
+       if (head) { count += keep_entry(head); }
+       if (remote) { count += keep_entry(remote); }
+       return count;
+}
+
+/*
+ * Two-way merge.
+ *
+ * The rule is to "carry forward" what is in the index without losing
+ * information across a "fast forward", favoring a successful merge
+ * over a merge failure when it makes sense.  For details of the
+ * "carry forward" rule, please see <Documentation/git-read-tree.txt>.
+ *
+ */
+int twoway_merge(struct cache_entry **src,
+               struct unpack_trees_options *o)
+{
+       struct cache_entry *current = src[0];
+       struct cache_entry *oldtree = src[1], *newtree = src[2];
+
+       if (o->merge_size != 2)
+               return error("Cannot do a twoway merge of %d trees",
+                            o->merge_size);
+
+       if (current) {
+               if ((!oldtree && !newtree) || /* 4 and 5 */
+                   (!oldtree && newtree &&
+                    same(current, newtree)) || /* 6 and 7 */
+                   (oldtree && newtree &&
+                    same(oldtree, newtree)) || /* 14 and 15 */
+                   (oldtree && newtree &&
+                    !same(oldtree, newtree) && /* 18 and 19*/
+                    same(current, newtree))) {
+                       return keep_entry(current);
+               }
+               else if (oldtree && !newtree && same(current, oldtree)) {
+                       /* 10 or 11 */
+                       return deleted_entry(oldtree, current, o);
+               }
+               else if (oldtree && newtree &&
+                        same(current, oldtree) && !same(current, newtree)) {
+                       /* 20 or 21 */
+                       return merged_entry(newtree, current, o);
+               }
+               else {
+                       /* all other failures */
+                       if (oldtree)
+                               reject_merge(oldtree);
+                       if (current)
+                               reject_merge(current);
+                       if (newtree)
+                               reject_merge(newtree);
+                       return -1;
+               }
+       }
+       else if (newtree)
+               return merged_entry(newtree, current, o);
+       else
+               return deleted_entry(oldtree, current, o);
+}
+
+/*
+ * Bind merge.
+ *
+ * Keep the index entries at stage0, collapse stage1 but make sure
+ * stage0 does not have anything there.
+ */
+int bind_merge(struct cache_entry **src,
+               struct unpack_trees_options *o)
+{
+       struct cache_entry *old = src[0];
+       struct cache_entry *a = src[1];
+
+       if (o->merge_size != 1)
+               return error("Cannot do a bind merge of %d trees\n",
+                            o->merge_size);
+       if (a && old)
+               die("Entry '%s' overlaps.  Cannot bind.", a->name);
+       if (!a)
+               return keep_entry(old);
+       else
+               return merged_entry(a, NULL, o);
+}
+
+/*
+ * One-way merge.
+ *
+ * The rule is:
+ * - take the stat information from stage0, take the data from stage1
+ */
+int oneway_merge(struct cache_entry **src,
+               struct unpack_trees_options *o)
+{
+       struct cache_entry *old = src[0];
+       struct cache_entry *a = src[1];
+
+       if (o->merge_size != 1)
+               return error("Cannot do a oneway merge of %d trees",
+                            o->merge_size);
+
+       if (!a)
+               return deleted_entry(old, old, o);
+       if (old && same(old, a)) {
+               if (o->reset) {
+                       struct stat st;
+                       if (lstat(old->name, &st) ||
+                           ce_match_stat(old, &st, 1))
+                               old->ce_flags |= htons(CE_UPDATE);
+               }
+               return keep_entry(old);
+       }
+       return merged_entry(a, old, o);
+}
diff --git a/unpack-trees.h b/unpack-trees.h
new file mode 100644 (file)
index 0000000..c460162
--- /dev/null
@@ -0,0 +1,35 @@
+#ifndef UNPACK_TREES_H
+#define UNPACK_TREES_H
+
+struct unpack_trees_options;
+
+typedef int (*merge_fn_t)(struct cache_entry **src,
+               struct unpack_trees_options *options);
+
+struct unpack_trees_options {
+       int reset;
+       int merge;
+       int update;
+       int index_only;
+       int nontrivial_merge;
+       int trivial_merges_only;
+       int verbose_update;
+       int aggressive;
+       const char *prefix;
+       merge_fn_t fn;
+
+       int head_idx;
+       int merge_size;
+
+       struct cache_entry *df_conflict_entry;
+};
+
+extern int unpack_trees(struct object_list *trees,
+               struct unpack_trees_options *options);
+
+int threeway_merge(struct cache_entry **stages, struct unpack_trees_options *o);
+int twoway_merge(struct cache_entry **src, struct unpack_trees_options *o);
+int bind_merge(struct cache_entry **src, struct unpack_trees_options *o);
+int oneway_merge(struct cache_entry **src, struct unpack_trees_options *o);
+
+#endif
index 07ecdb4281cfb32cf16dfc7c46c53e6e8d0247bc..fcf279843ad23b0605f3c2bc558e8d04a903554b 100644 (file)
@@ -14,14 +14,12 @@ static const char upload_pack_usage[] = "git-upload-pack [--strict] [--timeout=n
 #define THEY_HAVE (1U << 0)
 #define OUR_REF (1U << 1)
 #define WANTED (1U << 2)
-#define MAX_HAS 256
-#define MAX_NEEDS 256
-static int nr_has = 0, nr_needs = 0, multi_ack = 0, nr_our_refs = 0;
-static int use_thin_pack = 0;
-static unsigned char has_sha1[MAX_HAS][20];
-static unsigned char needs_sha1[MAX_NEEDS][20];
-static unsigned int timeout = 0;
-static int use_sideband = 0;
+static int multi_ack, nr_our_refs;
+static int use_thin_pack;
+static struct object_array have_obj;
+static struct object_array want_obj;
+static unsigned int timeout;
+static int use_sideband;
 
 static void reset_timeout(void)
 {
@@ -83,7 +81,7 @@ static void create_pack_file(void)
         */
        int lp_pipe[2], pu_pipe[2], pe_pipe[2];
        pid_t pid_rev_list, pid_pack_objects;
-       int create_full_pack = (nr_our_refs == nr_needs && !nr_has);
+       int create_full_pack = (nr_our_refs == want_obj.nr && !have_obj.nr);
        char data[8193], progress[128];
        char abort_msg[] = "aborting due to possible repository "
                "corruption on the remote side.";
@@ -107,7 +105,7 @@ static void create_pack_file(void)
                        use_thin_pack = 0; /* no point doing it */
                }
                else
-                       args = nr_has + nr_needs + 5;
+                       args = have_obj.nr + want_obj.nr + 5;
                p = xmalloc(args * sizeof(char *));
                argv = (const char **) p;
                buf = xmalloc(args * 45);
@@ -118,20 +116,22 @@ static void create_pack_file(void)
                close(lp_pipe[1]);
                *p++ = "rev-list";
                *p++ = use_thin_pack ? "--objects-edge" : "--objects";
-               if (create_full_pack || MAX_NEEDS <= nr_needs)
+               if (create_full_pack)
                        *p++ = "--all";
                else {
-                       for (i = 0; i < nr_needs; i++) {
+                       for (i = 0; i < want_obj.nr; i++) {
+                               struct object *o = want_obj.objects[i].item;
                                *p++ = buf;
-                               memcpy(buf, sha1_to_hex(needs_sha1[i]), 41);
+                               memcpy(buf, sha1_to_hex(o->sha1), 41);
                                buf += 41;
                        }
                }
                if (!create_full_pack)
-                       for (i = 0; i < nr_has; i++) {
+                       for (i = 0; i < have_obj.nr; i++) {
+                               struct object *o = have_obj.objects[i].item;
                                *p++ = buf;
                                *buf++ = '^';
-                               memcpy(buf, sha1_to_hex(has_sha1[i]), 41);
+                               memcpy(buf, sha1_to_hex(o->sha1), 41);
                                buf += 41;
                        }
                *p++ = NULL;
@@ -322,28 +322,29 @@ static void create_pack_file(void)
 
 static int got_sha1(char *hex, unsigned char *sha1)
 {
+       struct object *o;
+
        if (get_sha1_hex(hex, sha1))
                die("git-upload-pack: expected SHA1 object, got '%s'", hex);
        if (!has_sha1_file(sha1))
                return 0;
-       if (nr_has < MAX_HAS) {
-               struct object *o = lookup_object(sha1);
-               if (!(o && o->parsed))
-                       o = parse_object(sha1);
-               if (!o)
-                       die("oops (%s)", sha1_to_hex(sha1));
-               if (o->type == OBJ_COMMIT) {
-                       struct commit_list *parents;
-                       if (o->flags & THEY_HAVE)
-                               return 0;
-                       o->flags |= THEY_HAVE;
-                       for (parents = ((struct commit*)o)->parents;
-                            parents;
-                            parents = parents->next)
-                               parents->item->object.flags |= THEY_HAVE;
-               }
-               memcpy(has_sha1[nr_has++], sha1, 20);
+
+       o = lookup_object(sha1);
+       if (!(o && o->parsed))
+               o = parse_object(sha1);
+       if (!o)
+               die("oops (%s)", sha1_to_hex(sha1));
+       if (o->type == OBJ_COMMIT) {
+               struct commit_list *parents;
+               if (o->flags & THEY_HAVE)
+                       return 0;
+               o->flags |= THEY_HAVE;
+               for (parents = ((struct commit*)o)->parents;
+                    parents;
+                    parents = parents->next)
+                       parents->item->object.flags |= THEY_HAVE;
        }
+       add_object_array(o, NULL, &have_obj);
        return 1;
 }
 
@@ -361,26 +362,24 @@ static int get_common_commits(void)
                reset_timeout();
 
                if (!len) {
-                       if (nr_has == 0 || multi_ack)
+                       if (have_obj.nr == 0 || multi_ack)
                                packet_write(1, "NAK\n");
                        continue;
                }
                len = strip(line, len);
                if (!strncmp(line, "have ", 5)) {
                        if (got_sha1(line+5, sha1) &&
-                                       (multi_ack || nr_has == 1)) {
-                               if (nr_has >= MAX_HAS)
-                                       multi_ack = 0;
+                           (multi_ack || have_obj.nr == 1)) {
                                packet_write(1, "ACK %s%s\n",
-                                       sha1_to_hex(sha1),
-                                       multi_ack ?  " continue" : "");
+                                            sha1_to_hex(sha1),
+                                            multi_ack ?  " continue" : "");
                                if (multi_ack)
                                        memcpy(last_sha1, sha1, 20);
                        }
                        continue;
                }
                if (!strcmp(line, "done")) {
-                       if (nr_has > 0) {
+                       if (have_obj.nr > 0) {
                                if (multi_ack)
                                        packet_write(1, "ACK %s\n",
                                                        sha1_to_hex(last_sha1));
@@ -393,31 +392,21 @@ static int get_common_commits(void)
        }
 }
 
-static int receive_needs(void)
+static void receive_needs(void)
 {
        static char line[1000];
-       int len, needs;
+       int len;
 
-       needs = 0;
        for (;;) {
                struct object *o;
-               unsigned char dummy[20], *sha1_buf;
+               unsigned char sha1_buf[20];
                len = packet_read_line(0, line, sizeof(line));
                reset_timeout();
                if (!len)
-                       return needs;
-
-               sha1_buf = dummy;
-               if (needs == MAX_NEEDS) {
-                       fprintf(stderr,
-                               "warning: supporting only a max of %d requests. "
-                               "sending everything instead.\n",
-                               MAX_NEEDS);
-               }
-               else if (needs < MAX_NEEDS)
-                       sha1_buf = needs_sha1[needs];
+                       return;
 
-               if (strncmp("want ", line, 5) || get_sha1_hex(line+5, sha1_buf))
+               if (strncmp("want ", line, 5) ||
+                   get_sha1_hex(line+5, sha1_buf))
                        die("git-upload-pack: protocol error, "
                            "expected to get sha, not '%s'", line);
                if (strstr(line+45, "multi_ack"))
@@ -440,7 +429,7 @@ static int receive_needs(void)
                        die("git-upload-pack: not our ref %s", line+5);
                if (!(o->flags & WANTED)) {
                        o->flags |= WANTED;
-                       needs++;
+                       add_object_array(o, NULL, &want_obj);
                }
        }
 }
@@ -470,18 +459,17 @@ static int send_ref(const char *refname, const unsigned char *sha1)
        return 0;
 }
 
-static int upload_pack(void)
+static void upload_pack(void)
 {
        reset_timeout();
        head_ref(send_ref);
        for_each_ref(send_ref);
        packet_flush(1);
-       nr_needs = receive_needs();
-       if (!nr_needs)
-               return 0;
-       get_common_commits();
-       create_pack_file();
-       return 0;
+       receive_needs();
+       if (want_obj.nr) {
+               get_common_commits();
+               create_pack_file();
+       }
 }
 
 int main(int argc, char **argv)
diff --git a/verify-pack.c b/verify-pack.c
deleted file mode 100644 (file)
index 357970d..0000000
+++ /dev/null
@@ -1,78 +0,0 @@
-#include "cache.h"
-#include "pack.h"
-
-static int verify_one_pack(const char *path, int verbose)
-{
-       char arg[PATH_MAX];
-       int len;
-       struct packed_git *pack;
-       int err;
-
-       len = strlcpy(arg, path, PATH_MAX);
-       if (len >= PATH_MAX)
-               return error("name too long: %s", path);
-
-       /*
-        * In addition to "foo.idx" we accept "foo.pack" and "foo";
-        * normalize these forms to "foo.idx" for add_packed_git().
-        */
-       if (has_extension(arg, ".pack")) {
-               strcpy(arg + len - 5, ".idx");
-               len--;
-       } else if (!has_extension(arg, ".idx")) {
-               if (len + 4 >= PATH_MAX)
-                       return error("name too long: %s.idx", arg);
-               strcpy(arg + len, ".idx");
-               len += 4;
-       }
-
-       /*
-        * add_packed_git() uses our buffer (containing "foo.idx") to
-        * build the pack filename ("foo.pack").  Make sure it fits.
-        */
-       if (len + 1 >= PATH_MAX) {
-               arg[len - 4] = '\0';
-               return error("name too long: %s.pack", arg);
-       }
-
-       pack = add_packed_git(arg, len, 1);
-       if (!pack)
-               return error("packfile %s not found.", arg);
-
-       err = verify_pack(pack, verbose);
-       free(pack);
-
-       return err;
-}
-
-static const char verify_pack_usage[] = "git-verify-pack [-v] <pack>...";
-
-int main(int ac, char **av)
-{
-       int err = 0;
-       int verbose = 0;
-       int no_more_options = 0;
-       int nothing_done = 1;
-
-       while (1 < ac) {
-               if (!no_more_options && av[1][0] == '-') {
-                       if (!strcmp("-v", av[1]))
-                               verbose = 1;
-                       else if (!strcmp("--", av[1]))
-                               no_more_options = 1;
-                       else
-                               usage(verify_pack_usage);
-               }
-               else {
-                       if (verify_one_pack(av[1], verbose))
-                               err = 1;
-                       nothing_done = 0;
-               }
-               ac--; av++;
-       }
-
-       if (nothing_done)
-               usage(verify_pack_usage);
-
-       return err;
-}