Merge branch 'master' into js/fmt-patch
authorJunio C Hamano <junkio@cox.net>
Sun, 21 May 2006 08:34:54 +0000 (01:34 -0700)
committerJunio C Hamano <junkio@cox.net>
Sun, 21 May 2006 08:34:54 +0000 (01:34 -0700)
* master: (119 commits)
diff family: add --check option
Document that "git add" only adds non-ignored files.
Add a conversion tool to migrate remote information into the config
fetch, pull: ask config for remote information
Fix build procedure for builtin-init-db
read-tree -m -u: do not overwrite or remove untracked working tree files.
apply --cached: do not check newly added file in the working tree
Implement a --dry-run option to git-quiltimport
Implement git-quiltimport
Revert "builtin-grep: workaround for non GNU grep."
builtin-grep: workaround for non GNU grep.
builtin-grep: workaround for non GNU grep.
git-am: use apply --cached
apply --cached: apply a patch without using working tree.
apply --numstat: show new name, not old name.
Documentation/Makefile: create tarballs for the man pages and html files
Allow pickaxe and diff-filter options to be used by git log.
Libify the index refresh logic
Builtin git-init-db
Remove unnecessary local in get_ref_sha1.
...

95 files changed:
Documentation/SubmittingPatches
Documentation/core-tutorial.txt
Documentation/diff-options.txt
Documentation/git-add.txt
Documentation/git-clean.txt
Documentation/git-cvsexportcommit.txt
Documentation/git-grep.txt
Documentation/git-merge-base.txt
Documentation/git-quiltimport.txt [new file with mode: 0644]
Documentation/git-rebase.txt
Documentation/git-repo-config.txt
Documentation/git-rev-list.txt
Documentation/git-rev-parse.txt
Documentation/git-update-index.txt
Documentation/install-webdoc.sh
Makefile
apply.c
base85.c [new file with mode: 0644]
builtin-check-ref-format.c [new file with mode: 0644]
builtin-diff.c
builtin-grep.c [new file with mode: 0644]
builtin-init-db.c [new file with mode: 0644]
builtin-log.c
builtin-rev-list.c [new file with mode: 0644]
builtin.h
cache.h
cat-file.c
check-ref-format.c [deleted file]
checkout-index.c
combine-diff.c
commit-tree.c
commit.c
config.c
contrib/remotes2config.sh [new file with mode: 0644]
convert-objects.c
delta.h
describe.c
diff-delta.c
diff-tree.c
diff.c
diff.h
git-am.sh
git-branch.sh
git-checkout.sh
git-clean.sh
git-clone.sh
git-commit.sh
git-cvsexportcommit.perl
git-cvsimport.perl
git-cvsserver.perl
git-format-patch.sh
git-grep.sh [deleted file]
git-merge.sh
git-parse-remote.sh
git-quiltimport.sh [new file with mode: 0755]
git-rebase.sh
git-repack.sh
git-request-pull.sh
git-reset.sh
git-revert.sh
git-send-email.perl
git-tag.sh
git.c
git.spec.in
init-db.c [deleted file]
ls-tree.c
merge-base.c
merge-tree.c
pack-objects.c
patch-delta.c
read-cache.c
read-tree.c
refs.c
refs.h
repo-config.c
rev-list.c [deleted file]
rev-parse.c
revision.c
sha1_file.c
sha1_name.c
ssh-upload.c
t/t1002-read-tree-m-u-2way.sh
t/t1300-repo-config.sh
t/t2101-update-index-reupdate.sh [new file with mode: 0755]
t/t3500-cherry.sh
t/t4002-diff-basic.sh
t/t4012-diff-binary.sh [new file with mode: 0755]
t/t5700-clone-reference.sh [new file with mode: 0755]
t/t5710-info-alternate.sh [new file with mode: 0755]
t/t6022-merge-rename.sh
t/test4012.png [new file with mode: 0644]
tar-tree.c
unpack-file.c
update-index.c
update-ref.c
index 318b04fdeb2f3b77004cee830cd43c43ef55e1d3..8601949e80991823145a6d4c61cb5da918f98275 100644 (file)
@@ -266,8 +266,8 @@ This recipe appears to work with the current [*1*] Thunderbird from Suse.
 The following Thunderbird extensions are needed:
        AboutConfig 0.5
                http://aboutconfig.mozdev.org/
-       External Editor 0.5.4
-               http://extensionroom.mozdev.org/more-info/exteditor
+       External Editor 0.7.2
+               http://globs.org/articles.php?lng=en&pg=8
 
 1) Prepare the patch as a text file using your method of choice.
 
index 4211c8197243146e9c92653edd00796e13b98003..d1360ecde2b8ecafc5072a83d8a4be233549bee4 100644 (file)
@@ -971,7 +971,7 @@ $ git show-branch --topo-order master mybranch
 The first two lines indicate that it is showing the two branches
 and the first line of the commit log message from their
 top-of-the-tree commits, you are currently on `master` branch
-(notice the asterisk `*` character), and the first column for
+(notice the asterisk `\*` character), and the first column for
 the later output lines is used to show commits contained in the
 `master` branch, and the second column for the `mybranch`
 branch. Three commits are shown along with their log messages.
index c183dc9da0392bcfbae3e1edcd4d13f89a9923c3..f523ec2fbea9a129294b960461c82382b41ac92d 100644 (file)
 --stat::
        Generate a diffstat instead of a patch.
 
+--summary::
+       Output a condensed summary of extended header information
+       such as creations, renames and mode changes.
+
 --patch-with-stat::
        Generate patch and prepend its diffstat.
 
index 5e3112943d1947dbd8b58c23dd535eb4d527b80f..6342ea33e4a34f19ca04c79157d80cb230c15f5c 100644 (file)
@@ -14,11 +14,13 @@ DESCRIPTION
 A simple wrapper for git-update-index to add files to the index,
 for people used to do "cvs add".
 
+It only adds non-ignored files, to add ignored files use
+"git update-index --add".
 
 OPTIONS
 -------
 <file>...::
-       Files to add to the index.
+       Files to add to the index (see gitlink:git-ls-files[1]).
 
 -n::
         Don't actually add the file(s), just show if they exist.
@@ -68,6 +70,7 @@ git-add git-*.sh::
 See Also
 --------
 gitlink:git-rm[1]
+gitlink:git-ls-files[1]
 
 Author
 ------
index 36890c543d1eac30167b3c267c10db9b0f5b2fa2..c61afbcdbac49ccbb7ee755e3fdb19d7d77225d0 100644 (file)
@@ -8,7 +8,7 @@ git-clean - Remove untracked files from the working tree
 SYNOPSIS
 --------
 [verse]
-'git-clean' [-d] [-n] [-q] [-x | -X]
+'git-clean' [-d] [-n] [-q] [-x | -X] [--] <paths>...
 
 DESCRIPTION
 -----------
@@ -16,6 +16,9 @@ Removes files unknown to git.  This allows to clean the working tree
 from files that are not under version control.  If the '-x' option is
 specified, ignored files are also removed, allowing to remove all
 build products.
+When optional `<paths>...` arguments are given, the paths
+affected are further limited to those that match them.
+
 
 OPTIONS
 -------
index d30435a9e4c6ec9797110869c202aea2f8e257a1..56bd3e517d80e6542a3aa118984aee0fefec2ab7 100644 (file)
@@ -8,7 +8,7 @@ git-cvsexportcommit - Export a commit to a CVS checkout
 
 SYNOPSIS
 --------
-'git-cvsexportcommmit' [-h] [-v] [-c] [-p] [PARENTCOMMIT] COMMITID
+'git-cvsexportcommmit' [-h] [-v] [-c] [-p] [-f] [-m msgprefix] [PARENTCOMMIT] COMMITID
 
 
 DESCRIPTION
@@ -39,6 +39,13 @@ OPTIONS
        Be pedantic (paranoid) when applying patches. Invokes patch with 
        --fuzz=0
 
+-f::
+       Force the merge even if the files are not up to date.
+
+-m::
+       Prepend the commit message with the provided prefix. 
+       Useful for patch series and the like.
+
 -v::
        Verbose.
 
index d55456ae93f2596717cc2468af066dce8c11f2c6..74102b7944fd7153602ea5d9ae0969c150cd945f 100644 (file)
@@ -8,43 +8,82 @@ git-grep - Print lines matching a pattern
 
 SYNOPSIS
 --------
-'git-grep' [<option>...] [-e] <pattern> [--] [<path>...]
+[verse]
+'git-grep' [--cached]
+          [-a | --text] [-I] [-i | --ignore-case] [-w | --word-regexp]
+          [-v | --invert-match]
+          [-E | --extended-regexp] [-G | --basic-regexp] [-F | --fixed-strings]
+          [-n] [-l | --files-with-matches] [-L | --files-without-match]
+          [-c | --count]
+          [-A <post-context>] [-B <pre-context>] [-C <context>]
+          [-f <file>] [-e <pattern>]
+          [<tree>...]
+          [--] [<path>...]
 
 DESCRIPTION
 -----------
-Searches list of files `git-ls-files` produces for lines
-containing a match to the given pattern.
+Look for specified patterns in the working tree files, blobs
+registered in the index file, or given tree objects.
 
 
 OPTIONS
 -------
-`--`::
-       Signals the end of options; the rest of the parameters
-       are <path> limiters.
+--cached::
+       Instead of searching in the working tree files, check
+       the blobs registerd in the index file.
+
+-a | --text::
+       Process binary files as if they were text.
+
+-i | --ignore-case::
+       Ignore case differences between the patterns and the
+       files.
+
+-w | --word-regexp::
+       Match the pattern only at word boundary (either begin at the
+       beginning of a line, or preceded by a non-word character; end at
+       the end of a line or followed by a non-word character).
+
+-v | --invert-match::
+       Select non-matching lines.
+
+-E | --extended-regexp | -G | --basic-regexp::
+       Use POSIX extended/basic regexp for patterns.  Default
+       is to use basic regexp.
 
-<option>...::
-       Either an option to pass to `grep` or `git-ls-files`.
-+
-The following are the specific `git-ls-files` options
-that may be given: `-o`, `--cached`, `--deleted`, `--others`,
-`--killed`, `--ignored`, `--modified`, `--exclude=\*`,
-`--exclude-from=\*`, and `--exclude-per-directory=\*`.
-+
-All other options will be passed to `grep`.
+-n::
+       Prefix the line number to matching lines.
 
-<pattern>::
-       The pattern to look for.  The first non option is taken
-       as the pattern; if your pattern begins with a dash, use
-       `-e <pattern>`.
+-l | --files-with-matches | -L | --files-without-match::
+       Instead of showing every matched line, show only the
+       names of files that contain (or do not contain) matches.
 
-<path>...::
-       Optional paths to limit the set of files to be searched;
-       passed to `git-ls-files`.
+-c | --count::
+       Instead of showing every matched line, show the number of
+       lines that match.
+
+-[ABC] <context>::
+       Show `context` trailing (`A` -- after), or leading (`B`
+       -- before), or both (`C` -- context) lines, and place a
+       line containing `--` between continguous groups of
+       matches.
+
+-f <file>::
+       Read patterns from <file>, one per line.
+
+`<tree>...`::
+       Search blobs in the trees for specified patterns.
+
+`--`::
+       Signals the end of options; the rest of the parameters
+       are <path> limiters.
 
 
 Author
 ------
-Written by Linus Torvalds <torvalds@osdl.org>
+Originally written by Linus Torvalds <torvalds@osdl.org>, later
+revamped by Junio C Hamano.
+
 
 Documentation
 --------------
index d1d56f194aff866f49c5d0514ce9b47def456bfd..6099be2add74c2eb82ea5b1af844174a4dd896b5 100644 (file)
@@ -8,16 +8,26 @@ git-merge-base - Finds as good a common ancestor as possible for a merge
 
 SYNOPSIS
 --------
-'git-merge-base' <commit> <commit>
+'git-merge-base' [--all] <commit> <commit>
 
 DESCRIPTION
 -----------
-"git-merge-base" finds as good a common ancestor as possible. Given a
-selection of equally good common ancestors it should not be relied on
-to decide in any particular way.
+
+"git-merge-base" finds as good a common ancestor as possible between
+the two commits. That is, given two commits A and B 'git-merge-base A
+B' will output a commit which is reachable from both A and B through
+the parent relationship.
+
+Given a selection of equally good common ancestors it should not be
+relied on to decide in any particular way.
 
 The "git-merge-base" algorithm is still in flux - use the source...
 
+OPTIONS
+-------
+--all::
+       Output all common ancestors for the two commits instead of
+       just one.
 
 Author
 ------
diff --git a/Documentation/git-quiltimport.txt b/Documentation/git-quiltimport.txt
new file mode 100644 (file)
index 0000000..6e9a8c3
--- /dev/null
@@ -0,0 +1,61 @@
+git-quiltimport(1)
+================
+
+NAME
+----
+git-quiltimport - Applies a quilt patchset onto the current branch
+
+
+SYNOPSIS
+--------
+[verse]
+'git-quiltimport' [--dry-run] [--author <author>] [--patches <dir>]
+
+
+DESCRIPTION
+-----------
+Applies a quilt patchset onto the current git branch, preserving
+the patch boundaries, patch order, and patch descriptions present
+in the quilt patchset.
+
+For each patch the code attempts to extract the author from the
+patch description.  If that fails it falls back to the author
+specified with --author.  If the --author flag was not given
+the patch description is displayed and the user is asked to
+interactively enter the author of the patch.
+
+If a subject is not found in the patch description the patch name is
+preserved as the 1 line subject in the git description.
+
+OPTIONS
+-------
+--dry-run::
+       Walk through the patches in the series and warn
+       if we cannot find all of the necessary information to commit
+       a patch.  At the time of this writing only missing author
+       information is warned about.
+
+--author Author Name <Author Email>::
+       The author name and email address to use when no author
+       information can be found in the patch description.
+
+--patches <dir>::
+       The directory to find the quilt patches and the
+       quilt series file.
+
+        The default for the patch directory is patches
+       or the value of the $QUILT_PATCHES environment
+       variable.
+
+Author
+------
+Written by Eric Biederman <ebiederm@lnxi.com>
+
+Documentation
+--------------
+Documentation by Eric Biederman <ebiederm@lnxi.com>
+
+GIT
+---
+Part of the gitlink:git[7] suite
+
index 1b482abecdc2e953db1f29cb3c531f665ea8011c..08ee4aabaf74c8691a67c974bf3dca1c28cf25bc 100644 (file)
@@ -9,9 +9,7 @@ SYNOPSIS
 --------
 'git-rebase' [--onto <newbase>] <upstream> [<branch>]
 
-'git-rebase' --continue
-
-'git-rebase' --abort
+'git-rebase' --continue | --skip | --abort
 
 DESCRIPTION
 -----------
@@ -23,9 +21,10 @@ not exist in the <upstream> branch.
 
 It is possible that a merge failure will prevent this process from being
 completely automatic.  You will have to resolve any such merge failure
-and run `git rebase --continue`.  If you can not resolve the merge
-failure, running `git rebase --abort` will restore the original <branch>
-and remove the working files found in the .dotest directory.
+and run `git rebase --continue`.  Another option is to bypass the commit
+that caused the merge failure with `git rebase --skip`.  To restore the
+original <branch> and remove the .dotest working files, use the command
+`git rebase --abort` instead.
 
 Note that if <branch> is not specified on the command line, the currently
 checked out branch is used.
index fd44f629f5febb49a647578adb7804cd34b3afd6..660c18ff8d6074ad8e93e5eca0805f157dd2e592 100644 (file)
@@ -23,10 +23,11 @@ You can query/set/replace/unset options with this command. The name is
 actually the section and the key separated by a dot, and the value will be
 escaped.
 
-If you want to set/unset an option which can occur on multiple lines, you
-should provide a POSIX regex for the value. If you want to handle the lines
-*not* matching the regex, just prepend a single exclamation mark in front
-(see EXAMPLES).
+If you want to set/unset an option which can occur on multiple
+lines, a POSIX regexp `value_regex` needs to be given.  Only the
+existing values that match the regexp are updated or unset.  If
+you want to handle the lines that do *not* match the regex, just
+prepend a single exclamation mark in front (see EXAMPLES).
 
 The type specifier can be either '--int' or '--bool', which will make
 'git-repo-config' ensure that the variable(s) are of the given type and
index 8255ae1bceee562140179704352a7e4f9cd83d99..ad6d14c55aab2144bdac3c313305ba408fe5f0db 100644 (file)
@@ -68,9 +68,10 @@ OPTIONS
 --bisect::
        Limit output to the one commit object which is roughly halfway
        between the included and excluded commits. Thus, if 'git-rev-list
-       --bisect foo ^bar ^baz' outputs 'midpoint', the output
-       of 'git-rev-list foo ^midpoint' and 'git-rev-list midpoint
-       ^bar ^baz' would be of roughly the same length. Finding the change
+       --bisect foo {caret}bar {caret}baz' outputs 'midpoint', the output
+       of 'git-rev-list foo {caret}midpoint' and 'git-rev-list midpoint
+       {caret}bar {caret}baz' would be of roughly the same length.
+       Finding the change
        which introduces a regression is thus reduced to a binary search:
        repeatedly generate and test new 'midpoint's until the commit chain
        is of length one.
index 8b95df0c6e2a147cd89fdb20605896852085cbc5..ab896fcf8353475ae3bf14b2c442ce49f1720530 100644 (file)
@@ -67,6 +67,15 @@ OPTIONS
 --all::
        Show all refs found in `$GIT_DIR/refs`.
 
+--branches::
+       Show branch refs found in `$GIT_DIR/refs/heads`.
+
+--tags::
+       Show tag refs found in `$GIT_DIR/refs/tags`.
+
+--remotes::
+       Show tag refs found in `$GIT_DIR/refs/remotes`.
+
 --show-prefix::
        When the command is invoked from a subdirectory, show the
        path of the current directory relative to the top-level
index 57177c7fb6fea75a39c3243495b0724a207add17..d043e86a776897d4ec5b6515e3cf70d89fa8a97c 100644 (file)
@@ -15,7 +15,7 @@ SYNOPSIS
             [--cacheinfo <mode> <object> <file>]\*
             [--chmod=(+|-)x]
             [--assume-unchanged | --no-assume-unchanged]
-            [--really-refresh] [--unresolve]
+            [--really-refresh] [--unresolve] [--again]
             [--info-only] [--index-info]
             [-z] [--stdin]
             [--verbose]
@@ -80,6 +80,10 @@ OPTIONS
        filesystem that has very slow lstat(2) system call
        (e.g. cifs).
 
+--again::
+       Runs `git-update-index` itself on the paths whose index
+       entries are different from those from the `HEAD` commit.
+
 --unresolve::
        Restores the 'unmerged' or 'needs updating' state of a
        file during a merge if it was cleared by accident.
index 50638c78d5a4067320db4519131d224c55b3925a..60211a5058da658a92d99bd1d970b742dddb4e61 100755 (executable)
@@ -4,12 +4,16 @@ T="$1"
 
 for h in *.html *.txt howto/*.txt howto/*.html
 do
-       diff -u -I'Last updated [0-9][0-9]-[A-Z][a-z][a-z]-' "$T/$h" "$h" || {
+       if test -f "$T/$h" &&
+          diff -u -I'Last updated [0-9][0-9]-[A-Z][a-z][a-z]-' "$T/$h" "$h"
+       then
+               :; # up to date
+       else
                echo >&2 "# install $h $T/$h"
                rm -f "$T/$h"
                mkdir -p `dirname "$T/$h"`
                cp "$h" "$T/$h"
-       }
+       fi
 done
 strip_leading=`echo "$T/" | sed -e 's|.|.|g'`
 for th in "$T"/*.html "$T"/*.txt "$T"/howto/*.txt "$T"/howto/*.html
index 45484fcd82507d489bdb49370377fccd6046c985..4fd6520b7edf6215c3baf78298ac309883a7935d 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -124,14 +124,15 @@ SCRIPT_SH = \
        git-tag.sh git-verify-tag.sh \
        git-applymbox.sh git-applypatch.sh git-am.sh \
        git-merge.sh git-merge-stupid.sh git-merge-octopus.sh \
-       git-merge-resolve.sh git-merge-ours.sh git-grep.sh \
-       git-lost-found.sh
+       git-merge-resolve.sh git-merge-ours.sh \
+       git-lost-found.sh git-quiltimport.sh
 
 SCRIPT_PERL = \
        git-archimport.perl git-cvsimport.perl git-relink.perl \
        git-shortlog.perl git-fmt-merge-msg.perl git-rerere.perl \
        git-annotate.perl git-cvsserver.perl \
-       git-svnimport.perl git-mv.perl git-cvsexportcommit.perl
+       git-svnimport.perl git-mv.perl git-cvsexportcommit.perl \
+       git-send-email.perl
 
 SCRIPT_PYTHON = \
        git-merge-recursive.py
@@ -153,22 +154,24 @@ PROGRAMS = \
        git-convert-objects$X git-diff-files$X \
        git-diff-index$X git-diff-stages$X \
        git-diff-tree$X git-fetch-pack$X git-fsck-objects$X \
-       git-hash-object$X git-index-pack$X git-init-db$X git-local-fetch$X \
+       git-hash-object$X git-index-pack$X git-local-fetch$X \
        git-ls-files$X git-ls-tree$X git-mailinfo$X git-merge-base$X \
        git-merge-index$X git-mktag$X git-mktree$X git-pack-objects$X git-patch-id$X \
        git-peek-remote$X git-prune-packed$X git-read-tree$X \
-       git-receive-pack$X git-rev-list$X git-rev-parse$X \
+       git-receive-pack$X git-rev-parse$X \
        git-send-pack$X git-show-branch$X git-shell$X \
        git-show-index$X git-ssh-fetch$X \
        git-ssh-upload$X git-tar-tree$X git-unpack-file$X \
        git-unpack-objects$X git-update-index$X git-update-server-info$X \
        git-upload-pack$X git-verify-pack$X git-write-tree$X \
-       git-update-ref$X git-symbolic-ref$X git-check-ref-format$X \
+       git-update-ref$X git-symbolic-ref$X \
        git-name-rev$X git-pack-redundant$X git-repo-config$X git-var$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$X \
-       git-count-objects$X git-diff$X git-push$X
+       git-count-objects$X git-diff$X git-push$X \
+       git-grep$X git-rev-list$X git-check-ref-format$X \
+       git-init-db$X
 
 # what 'all' will build and 'install' will install, in gitexecdir
 ALL_PROGRAMS = $(PROGRAMS) $(SIMPLE_PROGRAMS) $(SCRIPTS)
@@ -205,7 +208,7 @@ DIFF_OBJS = \
        diffcore-delta.o log-tree.o
 
 LIB_OBJS = \
-       blob.o commit.o connect.o csum-file.o \
+       blob.o commit.o connect.o csum-file.o base85.o \
        date.o diff-delta.o entry.o exec_cmd.o ident.o index.o \
        object.o pack-check.o patch-delta.o path.o pkt-line.o \
        quote.o read-cache.o refs.o run-command.o \
@@ -215,7 +218,9 @@ LIB_OBJS = \
        $(DIFF_OBJS)
 
 BUILTIN_OBJS = \
-       builtin-log.o builtin-help.o builtin-count.o builtin-diff.o builtin-push.o
+       builtin-log.o builtin-help.o builtin-count.o builtin-diff.o builtin-push.o \
+       builtin-grep.o builtin-rev-list.o builtin-check-ref-format.o \
+       builtin-init-db.o
 
 GITLIBS = $(LIB_FILE) $(XDIFF_LIB)
 LIBS = $(GITLIBS) -lz
@@ -285,7 +290,9 @@ ifeq ($(uname_S),OpenBSD)
        ALL_LDFLAGS += -L/usr/local/lib
 endif
 ifeq ($(uname_S),NetBSD)
-       NEEDS_LIBICONV = YesPlease
+       ifeq ($(shell expr "$(uname_R)" : '[01]\.'),2)
+               NEEDS_LIBICONV = YesPlease
+       endif
        ALL_CFLAGS += -I/usr/pkg/include
        ALL_LDFLAGS += -L/usr/pkg/lib -Wl,-rpath,/usr/pkg/lib
 endif
@@ -319,10 +326,6 @@ else
        endif
 endif
 
-ifdef WITH_SEND_EMAIL
-       SCRIPT_PERL += git-send-email.perl
-endif
-
 ifndef NO_CURL
        ifdef CURLDIR
                # This is still problematic -- gcc does not always want -R.
@@ -458,6 +461,7 @@ PYTHON_PATH_SQ = $(subst ','\'',$(PYTHON_PATH))
 GIT_PYTHON_DIR_SQ = $(subst ','\'',$(GIT_PYTHON_DIR))
 
 ALL_CFLAGS += -DSHA1_HEADER='$(SHA1_HEADER_SQ)' $(COMPAT_CFLAGS)
+ALL_CFLAGS += -DDEFAULT_GIT_TEMPLATE_DIR='"$(template_dir_SQ)"'
 LIB_OBJS += $(COMPAT_OBJS)
 export prefix TAR INSTALL DESTDIR SHELL_PATH template_dir
 ### Build rules
@@ -564,10 +568,6 @@ git-http-push$X: revision.o http.o http-push.o $(LIB_FILE)
        $(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) $(filter %.o,$^) \
                $(LIBS) $(CURL_LIBCURL) $(EXPAT_LIBEXPAT)
 
-init-db.o: init-db.c
-       $(CC) -c $(ALL_CFLAGS) \
-               -DDEFAULT_GIT_TEMPLATE_DIR='"$(template_dir_SQ)"' $*.c
-
 $(LIB_OBJS) $(BUILTIN_OBJS): $(LIB_H)
 $(patsubst git-%$X,%.o,$(PROGRAMS)): $(GITLIBS)
 $(DIFF_OBJS): diffcore.h
@@ -607,7 +607,7 @@ test-date$X: test-date.c date.o ctype.o
        $(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) test-date.c date.o ctype.o
 
 test-delta$X: test-delta.c diff-delta.o patch-delta.o
-       $(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) $^ -lz
+       $(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) $^
 
 check:
        for i in *.c; do sparse $(ALL_CFLAGS) $(SPARSE_FLAGS) $$i || exit; done
@@ -651,6 +651,25 @@ dist: git.spec git-tar-tree
 rpm: dist
        $(RPMBUILD) -ta $(GIT_TARNAME).tar.gz
 
+htmldocs = git-htmldocs-$(GIT_VERSION)
+manpages = git-manpages-$(GIT_VERSION)
+dist-doc:
+       rm -fr .doc-tmp-dir
+       mkdir .doc-tmp-dir
+       $(MAKE) -C Documentation WEBDOC_DEST=../.doc-tmp-dir install-webdoc
+       cd .doc-tmp-dir && $(TAR) cf ../$(htmldocs).tar .
+       gzip -n -9 -f $(htmldocs).tar
+       :
+       rm -fr .doc-tmp-dir
+       mkdir .doc-tmp-dir .doc-tmp-dir/man1 .doc-tmp-dir/man7
+       $(MAKE) -C Documentation DESTDIR=. \
+               man1=../.doc-tmp-dir/man1 \
+               man7=../.doc-tmp-dir/man7 \
+               install
+       cd .doc-tmp-dir && $(TAR) cf ../$(manpages).tar .
+       gzip -n -9 -f $(manpages).tar
+       rm -fr .doc-tmp-dir
+
 ### Cleaning rules
 
 clean:
@@ -658,8 +677,9 @@ clean:
                $(LIB_FILE) $(XDIFF_LIB)
        rm -f $(ALL_PROGRAMS) $(BUILT_INS) git$X
        rm -f *.spec *.pyc *.pyo */*.pyc */*.pyo common-cmds.h TAGS tags
-       rm -rf $(GIT_TARNAME)
+       rm -rf $(GIT_TARNAME) .doc-tmp-dir
        rm -f $(GIT_TARNAME).tar.gz git-core_$(GIT_VERSION)-*.tar.gz
+       rm -f $(htmldocs).tar $(manpages).tar
        $(MAKE) -C Documentation/ clean
        $(MAKE) -C templates clean
        $(MAKE) -C t/ clean
diff --git a/apply.c b/apply.c
index 269210a578262b22fbf50bbdd9bf9fbccec3202b..0ed9d132e88f52c678a4a64caf3b49d5bc04ee2e 100644 (file)
--- a/apply.c
+++ b/apply.c
 #include "cache.h"
 #include "quote.h"
 #include "blob.h"
+#include "delta.h"
 
 //  --check turns on checking that the working tree matches the
 //    files that are being modified, but doesn't apply the patch
 //  --stat does just a diffstat, and doesn't actually apply
 //  --numstat does numeric diffstat, and doesn't actually apply
 //  --index-info shows the old and new index info for paths if available.
+//  --index updates the cache as well.
+//  --cached updates only the cache without ever touching the working tree.
 //
 static const char *prefix;
 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;
@@ -34,7 +39,7 @@ static int show_index_info = 0;
 static int line_termination = '\n';
 static unsigned long p_context = -1;
 static const char apply_usage[] =
-"git-apply [--stat] [--numstat] [--summary] [--check] [--index] [--apply] [--no-add] [--index-info] [--allow-binary-replacement] [-z] [-pNUM] [-CNUM] [--whitespace=<nowarn|warn|error|error-all|strip>] <patch>...";
+"git-apply [--stat] [--numstat] [--summary] [--check] [--index] [--cached] [--apply] [--no-add] [--index-info] [--allow-binary-replacement] [-z] [-pNUM] [-CNUM] [--whitespace=<nowarn|warn|error|error-all|strip>] <patch>...";
 
 static enum whitespace_eol {
        nowarn_whitespace,
@@ -113,6 +118,9 @@ 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;
+#define BINARY_DELTA_DEFLATED 1
+#define BINARY_LITERAL_DEFLATED 2
+       unsigned long deflate_origlen;
        int lines_added, lines_deleted;
        int score;
        struct fragment *fragments;
@@ -966,6 +974,88 @@ 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)
+{
+       /* 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.
+        *
+        * 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 signalled with an empty line.
+        */
+       int llen, used;
+       struct fragment *fragment;
+       char *data = NULL;
+
+       patch->fragments = fragment = xcalloc(1, sizeof(*fragment));
+
+       /* Grab the type of patch */
+       llen = linelen(buffer, size);
+       used = llen;
+       linenr++;
+
+       if (!strncmp(buffer, "delta ", 6)) {
+               patch->is_binary = BINARY_DELTA_DEFLATED;
+               patch->deflate_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);
+       }
+       else
+               return error("unrecognized binary patch at line %d: %.*s",
+                            linenr-1, llen-1, buffer);
+       buffer += llen;
+       while (1) {
+               int byte_length, max_byte_length, newsize;
+               llen = linelen(buffer, size);
+               used += llen;
+               linenr++;
+               if (llen == 1)
+                       break;
+               /* Minimum line is "A00000\n" which is 7-byte long,
+                * and the line length must be multiple of 5 plus 2.
+                */
+               if ((llen < 7) || (llen-2) % 5)
+                       goto corrupt;
+               max_byte_length = (llen - 2) / 5 * 4;
+               byte_length = *buffer;
+               if ('A' <= byte_length && byte_length <= 'Z')
+                       byte_length = byte_length - 'A' + 1;
+               else if ('a' <= byte_length && byte_length <= 'z')
+                       byte_length = byte_length - 'a' + 27;
+               else
+                       goto corrupt;
+               /* if the input length was not multiple of 4, we would
+                * have filler at the end but the filler should never
+                * exceed 3 bytes
+                */
+               if (max_byte_length < byte_length ||
+                   byte_length <= max_byte_length - 4)
+                       goto corrupt;
+               newsize = fragment->size + byte_length;
+               data = xrealloc(data, newsize);
+               if (decode_85(data + fragment->size,
+                             buffer + 1,
+                             byte_length))
+                       goto corrupt;
+               fragment->size = newsize;
+               buffer += llen;
+               size -= llen;
+       }
+       fragment->patch = data;
+       return used;
+ corrupt:
+       return error("corrupt binary patch at line %d: %.*s",
+                    linenr-1, llen-1, buffer);
+}
+
 static int parse_chunk(char *buffer, unsigned long size, struct patch *patch)
 {
        int hdrsize, patchsize;
@@ -982,19 +1072,34 @@ static int parse_chunk(char *buffer, unsigned long size, struct patch *patch)
                        "Files ",
                        NULL,
                };
+               static const char git_binary[] = "GIT binary patch\n";
                int i;
                int hd = hdrsize + offset;
                unsigned long llen = linelen(buffer + hd, size - hd);
 
-               if (!memcmp(" differ\n", buffer + hd + llen - 8, 8))
+               if (llen == sizeof(git_binary) - 1 &&
+                   !memcmp(git_binary, buffer + hd, llen)) {
+                       int used;
+                       linenr++;
+                       used = parse_binary(buffer + hd + llen,
+                                           size - hd - llen, patch);
+                       if (used)
+                               patchsize = used + llen;
+                       else
+                               patchsize = 0;
+               }
+               else if (!memcmp(" differ\n", buffer + hd + llen - 8, 8)) {
                        for (i = 0; binhdr[i]; i++) {
                                int len = strlen(binhdr[i]);
                                if (len < size - hd &&
                                    !memcmp(binhdr[i], buffer + hd, len)) {
+                                       linenr++;
                                        patch->is_binary = 1;
+                                       patchsize = llen;
                                        break;
                                }
                        }
+               }
 
                /* Empty patch cannot be applied if:
                 * - it is a binary patch and we do not do binary_replace, or
@@ -1345,76 +1450,150 @@ static int apply_one_fragment(struct buffer_desc *desc, struct fragment *frag)
        return offset;
 }
 
-static int apply_fragments(struct buffer_desc *desc, struct patch *patch)
+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;
+       struct fragment *fragment = patch->fragments;
+       void *data;
+       void *result;
+
+       data = inflate_it(fragment->patch, fragment->size,
+                         patch->deflate_origlen);
+       if (!data)
+               return error("corrupt patch data");
+       switch (patch->is_binary) {
+       case BINARY_DELTA_DEFLATED:
+               result = patch_delta(desc->buffer, desc->size,
+                                    data,
+                                    patch->deflate_origlen,
+                                    &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;
+               break;
+       }
+       if (!desc->buffer)
+               return -1;
+       desc->size = desc->alloc = dst_size;
+       return 0;
+}
+
+static int apply_binary(struct buffer_desc *desc, struct patch *patch)
 {
-       struct fragment *frag = patch->fragments;
        const char *name = patch->old_name ? patch->old_name : patch->new_name;
+       unsigned char sha1[20];
+       unsigned char hdr[50];
+       int hdrlen;
 
-       if (patch->is_binary) {
-               unsigned char sha1[20];
+       if (!allow_binary_replacement)
+               return error("cannot apply binary patch to '%s' "
+                            "without --allow-binary-replacement",
+                            name);
 
-               if (!allow_binary_replacement)
-                       return error("cannot apply binary patch to '%s' "
-                                    "without --allow-binary-replacement",
-                                    name);
+       /* For safety, we require patch index line to contain
+        * full 40-byte textual SHA1 for old and new, at least for now.
+        */
+       if (strlen(patch->old_sha1_prefix) != 40 ||
+           strlen(patch->new_sha1_prefix) != 40 ||
+           get_sha1_hex(patch->old_sha1_prefix, sha1) ||
+           get_sha1_hex(patch->new_sha1_prefix, sha1))
+               return error("cannot apply binary patch to '%s' "
+                            "without full index line", name);
 
-               /* For safety, we require patch index line to contain
-                * full 40-byte textual SHA1 for old and new, at least for now.
+       if (patch->old_name) {
+               /* See if the old one matches what the patch
+                * applies to.
                 */
-               if (strlen(patch->old_sha1_prefix) != 40 ||
-                   strlen(patch->new_sha1_prefix) != 40 ||
-                   get_sha1_hex(patch->old_sha1_prefix, sha1) ||
-                   get_sha1_hex(patch->new_sha1_prefix, sha1))
-                       return error("cannot apply binary patch to '%s' "
-                                    "without full index line", name);
-
-               if (patch->old_name) {
-                       unsigned char hdr[50];
-                       int hdrlen;
-
-                       /* See if the old one matches what the patch
-                        * applies to.
-                        */
-                       write_sha1_file_prepare(desc->buffer, desc->size,
-                                               blob_type, sha1, hdr, &hdrlen);
-                       if (strcmp(sha1_to_hex(sha1), patch->old_sha1_prefix))
-                               return error("the patch applies to '%s' (%s), "
-                                            "which does not match the "
-                                            "current contents.",
-                                            name, sha1_to_hex(sha1));
-               }
-               else {
-                       /* Otherwise, the old one must be empty. */
-                       if (desc->size)
-                               return error("the patch applies to an empty "
-                                            "'%s' but it is not empty", name);
-               }
+               write_sha1_file_prepare(desc->buffer, desc->size,
+                                       blob_type, sha1, hdr, &hdrlen);
+               if (strcmp(sha1_to_hex(sha1), patch->old_sha1_prefix))
+                       return error("the patch applies to '%s' (%s), "
+                                    "which does not match the "
+                                    "current contents.",
+                                    name, sha1_to_hex(sha1));
+       }
+       else {
+               /* Otherwise, the old one must be empty. */
+               if (desc->size)
+                       return error("the patch applies to an empty "
+                                    "'%s' but it is not empty", name);
+       }
+
+       get_sha1_hex(patch->new_sha1_prefix, sha1);
+       if (!memcmp(sha1, null_sha1, 20)) {
+               free(desc->buffer);
+               desc->alloc = desc->size = 0;
+               desc->buffer = NULL;
+               return 0; /* deletion patch */
+       }
+
+       if (has_sha1_file(sha1)) {
+               /* We already have the postimage */
+               char type[10];
+               unsigned long size;
 
-               /* For now, we do not record post-image data in the patch,
-                * and require the object already present in the recipient's
-                * object database.
+               free(desc->buffer);
+               desc->buffer = read_sha1_file(sha1, type, &size);
+               if (!desc->buffer)
+                       return error("the necessary postimage %s for "
+                                    "'%s' cannot be read",
+                                    patch->new_sha1_prefix, name);
+               desc->alloc = desc->size = size;
+       }
+       else {
+               /* We have verified desc matches the preimage;
+                * apply the patch data to it, which is stored
+                * in the patch->fragments->{patch,size}.
                 */
-               if (desc->buffer) {
-                       free(desc->buffer);
-                       desc->alloc = desc->size = 0;
-               }
-               get_sha1_hex(patch->new_sha1_prefix, sha1);
-
-               if (memcmp(sha1, null_sha1, 20)) {
-                       char type[10];
-                       unsigned long size;
-
-                       desc->buffer = read_sha1_file(sha1, type, &size);
-                       if (!desc->buffer)
-                               return error("the necessary postimage %s for "
-                                            "'%s' does not exist",
-                                            patch->new_sha1_prefix, name);
-                       desc->alloc = desc->size = size;
-               }
+               if (apply_binary_fragment(desc, patch))
+                       return error("binary patch does not apply to '%s'",
+                                    name);
 
-               return 0;
+               /* verify that the result matches */
+               write_sha1_file_prepare(desc->buffer, desc->size, blob_type,
+                                       sha1, hdr, &hdrlen);
+               if (strcmp(sha1_to_hex(sha1), patch->new_sha1_prefix))
+                       return error("binary patch to '%s' creates incorrect result", name);
        }
 
+       return 0;
+}
+
+static int apply_fragments(struct buffer_desc *desc, struct patch *patch)
+{
+       struct fragment *frag = patch->fragments;
+       const char *name = patch->old_name ? patch->old_name : patch->new_name;
+
+       if (patch->is_binary)
+               return apply_binary(desc, patch);
+
        while (frag) {
                if (apply_one_fragment(desc, frag) < 0)
                        return error("patch failed: %s:%ld",
@@ -1424,7 +1603,7 @@ static int apply_fragments(struct buffer_desc *desc, struct patch *patch)
        return 0;
 }
 
-static int apply_data(struct patch *patch, struct stat *st)
+static int apply_data(struct patch *patch, struct stat *st, struct cache_entry *ce)
 {
        char *buf;
        unsigned long size, alloc;
@@ -1433,7 +1612,17 @@ static int apply_data(struct patch *patch, struct stat *st)
        size = 0;
        alloc = 0;
        buf = NULL;
-       if (patch->old_name) {
+       if (cached) {
+               if (ce) {
+                       char type[20];
+                       buf = read_sha1_file(ce->sha1, type, &size);
+                       if (!buf)
+                               return error("read of %s failed",
+                                            patch->old_name);
+                       alloc = size;
+               }
+       }
+       else if (patch->old_name) {
                size = st->st_size;
                alloc = size + 8192;
                buf = xmalloc(alloc);
@@ -1461,16 +1650,21 @@ static int check_patch(struct patch *patch)
        const char *old_name = patch->old_name;
        const char *new_name = patch->new_name;
        const char *name = old_name ? old_name : new_name;
+       struct cache_entry *ce = NULL;
 
        if (old_name) {
-               int changed;
-               int stat_ret = lstat(old_name, &st);
+               int changed = 0;
+               int stat_ret = 0;
+               unsigned st_mode = 0;
 
+               if (!cached)
+                       stat_ret = lstat(old_name, &st);
                if (check_index) {
                        int pos = cache_name_pos(old_name, strlen(old_name));
                        if (pos < 0)
                                return error("%s: does not exist in index",
                                             old_name);
+                       ce = active_cache[pos];
                        if (stat_ret < 0) {
                                struct checkout costate;
                                if (errno != ENOENT)
@@ -1483,40 +1677,46 @@ static int check_patch(struct patch *patch)
                                costate.quiet = 0;
                                costate.not_new = 0;
                                costate.refresh_cache = 1;
-                               if (checkout_entry(active_cache[pos],
+                               if (checkout_entry(ce,
                                                   &costate,
                                                   NULL) ||
                                    lstat(old_name, &st))
                                        return -1;
                        }
-
-                       changed = ce_match_stat(active_cache[pos], &st, 1);
+                       if (!cached)
+                               changed = ce_match_stat(ce, &st, 1);
                        if (changed)
                                return error("%s: does not match index",
                                             old_name);
+                       if (cached)
+                               st_mode = ntohl(ce->ce_mode);
                }
                else if (stat_ret < 0)
                        return error("%s: %s", old_name, strerror(errno));
 
+               if (!cached)
+                       st_mode = ntohl(create_ce_mode(st.st_mode));
+
                if (patch->is_new < 0)
                        patch->is_new = 0;
-               st.st_mode = ntohl(create_ce_mode(st.st_mode));
                if (!patch->old_mode)
-                       patch->old_mode = st.st_mode;
-               if ((st.st_mode ^ patch->old_mode) & S_IFMT)
+                       patch->old_mode = st_mode;
+               if ((st_mode ^ patch->old_mode) & S_IFMT)
                        return error("%s: wrong type", old_name);
-               if (st.st_mode != patch->old_mode)
+               if (st_mode != patch->old_mode)
                        fprintf(stderr, "warning: %s has type %o, expected %o\n",
-                               old_name, st.st_mode, patch->old_mode);
+                               old_name, st_mode, patch->old_mode);
        }
 
        if (new_name && (patch->is_new | patch->is_rename | patch->is_copy)) {
                if (check_index && cache_name_pos(new_name, strlen(new_name)) >= 0)
                        return error("%s: already exists in index", new_name);
-               if (!lstat(new_name, &st))
-                       return error("%s: already exists in working directory", new_name);
-               if (errno != ENOENT)
-                       return error("%s: %s", new_name, strerror(errno));
+               if (!cached) {
+                       if (!lstat(new_name, &st))
+                               return error("%s: already exists in working directory", new_name);
+                       if (errno != ENOENT)
+                               return error("%s: %s", new_name, strerror(errno));
+               }
                if (!patch->new_mode) {
                        if (patch->is_new)
                                patch->new_mode = S_IFREG | 0644;
@@ -1533,9 +1733,9 @@ static int check_patch(struct patch *patch)
                        return error("new mode (%o) of %s does not match old mode (%o)%s%s",
                                patch->new_mode, new_name, patch->old_mode,
                                same ? "" : " of ", same ? "" : old_name);
-       }       
+       }
 
-       if (apply_data(patch, &st) < 0)
+       if (apply_data(patch, &st, ce) < 0)
                return error("%s: patch does not apply", name);
        return 0;
 }
@@ -1602,7 +1802,7 @@ static void numstat_patch_list(struct patch *patch)
 {
        for ( ; patch; patch = patch->next) {
                const char *name;
-               name = patch->old_name ? patch->old_name : patch->new_name;
+               name = patch->new_name ? patch->new_name : patch->old_name;
                printf("%d\t%d\t", patch->lines_added, patch->lines_deleted);
                if (line_termination && quote_c_style(name, NULL, NULL, 0))
                        quote_c_style(name, NULL, stdout, 0);
@@ -1718,7 +1918,8 @@ static void remove_file(struct patch *patch)
                if (remove_file_from_cache(patch->old_name) < 0)
                        die("unable to remove %s from index", patch->old_name);
        }
-       unlink(patch->old_name);
+       if (!cached)
+               unlink(patch->old_name);
 }
 
 static void add_index_file(const char *path, unsigned mode, void *buf, unsigned long size)
@@ -1735,9 +1936,11 @@ static void add_index_file(const char *path, unsigned mode, void *buf, unsigned
        memcpy(ce->name, path, namelen);
        ce->ce_mode = create_ce_mode(mode);
        ce->ce_flags = htons(namelen);
-       if (lstat(path, &st) < 0)
-               die("unable to stat newly created file %s", path);
-       fill_stat_cache_info(ce, &st);
+       if (!cached) {
+               if (lstat(path, &st) < 0)
+                       die("unable to stat newly created file %s", path);
+               fill_stat_cache_info(ce, &st);
+       }
        if (write_sha1_file(buf, size, blob_type, ce->sha1) < 0)
                die("unable to create backing store for newly created file %s", path);
        if (add_cache_entry(ce, ADD_CACHE_OK_TO_ADD) < 0)
@@ -1774,6 +1977,8 @@ static int try_create_file(const char *path, unsigned int mode, const char *buf,
  */
 static void create_one_file(char *path, unsigned mode, const char *buf, unsigned long size)
 {
+       if (cached)
+               return;
        if (!try_create_file(path, mode, buf, size))
                return;
 
@@ -1873,7 +2078,6 @@ static int use_patch(struct patch *p)
 
 static int apply_patch(int fd, const char *filename)
 {
-       int newfd;
        unsigned long offset, size;
        char *buffer = read_patch_file(fd, &size);
        struct patch *list = NULL, **listp = &list;
@@ -1904,12 +2108,11 @@ static int apply_patch(int fd, const char *filename)
                size -= nr;
        }
 
-       newfd = -1;
        if (whitespace_error && (new_whitespace == error_on_whitespace))
                apply = 0;
 
        write_index = check_index && apply;
-       if (write_index)
+       if (write_index && newfd < 0)
                newfd = hold_index_file_for_update(&cache_file, get_index_file());
        if (check_index) {
                if (read_cache() < 0)
@@ -1922,12 +2125,6 @@ static int apply_patch(int fd, const char *filename)
        if (apply)
                write_out_results(list, skipped_patch);
 
-       if (write_index) {
-               if (write_cache(newfd, active_cache, active_nr) ||
-                   commit_index_file(&cache_file))
-                       die("Unable to write new cachefile");
-       }
-
        if (show_index_info)
                show_index_list(list);
 
@@ -1990,7 +2187,8 @@ int main(int argc, char **argv)
                        diffstat = 1;
                        continue;
                }
-               if (!strcmp(arg, "--allow-binary-replacement")) {
+               if (!strcmp(arg, "--allow-binary-replacement") ||
+                   !strcmp(arg, "--binary")) {
                        allow_binary_replacement = 1;
                        continue;
                }
@@ -2013,6 +2211,11 @@ int main(int argc, char **argv)
                        check_index = 1;
                        continue;
                }
+               if (!strcmp(arg, "--cached")) {
+                       check_index = 1;
+                       cached = 1;
+                       continue;
+               }
                if (!strcmp(arg, "--apply")) {
                        apply = 1;
                        continue;
@@ -2085,5 +2288,12 @@ int main(int argc, char **argv)
                                whitespace_error == 1 ? "" : "s",
                                whitespace_error == 1 ? "s" : "");
        }
+
+       if (write_index) {
+               if (write_cache(newfd, active_cache, active_nr) ||
+                   commit_index_file(&cache_file))
+                       die("Unable to write new cachefile");
+       }
+
        return 0;
 }
diff --git a/base85.c b/base85.c
new file mode 100644 (file)
index 0000000..a9e97f8
--- /dev/null
+++ b/base85.c
@@ -0,0 +1,140 @@
+#include "cache.h"
+
+#undef DEBUG_85
+
+#ifdef DEBUG_85
+#define say(a) fprintf(stderr, a)
+#define say1(a,b) fprintf(stderr, a, b)
+#define say2(a,b,c) fprintf(stderr, a, b, c)
+#else
+#define say(a) do {} while(0)
+#define say1(a,b) do {} while(0)
+#define say2(a,b,c) do {} while(0)
+#endif
+
+static const char en85[] = {
+       '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
+       'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J',
+       'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T',
+       'U', 'V', 'W', 'X', 'Y', 'Z',
+       'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j',
+       'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't',
+       'u', 'v', 'w', 'x', 'y', 'z',
+       '!', '#', '$', '%', '&', '(', ')', '*', '+', '-',
+       ';', '<', '=', '>', '?', '@', '^', '_', '`', '{',
+       '|', '}', '~'
+};
+
+static char de85[256];
+static void prep_base85(void)
+{
+       int i;
+       if (de85['Z'])
+               return;
+       for (i = 0; i < ARRAY_SIZE(en85); i++) {
+               int ch = en85[i];
+               de85[ch] = i + 1;
+       }
+}
+
+int decode_85(char *dst, char *buffer, int len)
+{
+       prep_base85();
+
+       say2("decode 85 <%.*s>", len/4*5, buffer);
+       while (len) {
+               unsigned acc = 0;
+               int de, cnt = 4;
+               unsigned char ch;
+               do {
+                       ch = *buffer++;
+                       de = de85[ch];
+                       if (--de < 0)
+                               return error("invalid base85 alphabet %c", ch);
+                       acc = acc * 85 + de;
+               } while (--cnt);
+               ch = *buffer++;
+               de = de85[ch];
+               if (--de < 0)
+                       return error("invalid base85 alphabet %c", ch);
+               /*
+                * Detect overflow.  The largest
+                * 5-letter possible is "|NsC0" to
+                * encode 0xffffffff, and "|NsC" gives
+                * 0x03030303 at this point (i.e.
+                * 0xffffffff = 0x03030303 * 85).
+                */
+               if (0x03030303 < acc ||
+                   0xffffffff - de < (acc *= 85))
+                       error("invalid base85 sequence %.5s", buffer-5);
+               acc += de;
+               say1(" %08x", acc);
+
+               cnt = (len < 4) ? len : 4;
+               len -= cnt;
+               do {
+                       acc = (acc << 8) | (acc >> 24);
+                       *dst++ = acc;
+               } while (--cnt);
+       }
+       say("\n");
+
+       return 0;
+}
+
+void encode_85(char *buf, unsigned char *data, int bytes)
+{
+       prep_base85();
+
+       say("encode 85");
+       while (bytes) {
+               unsigned acc = 0;
+               int cnt;
+               for (cnt = 24; cnt >= 0; cnt -= 8) {
+                       int ch = *data++;
+                       acc |= ch << cnt;
+                       if (--bytes == 0)
+                               break;
+               }
+               say1(" %08x", acc);
+               for (cnt = 4; cnt >= 0; cnt--) {
+                       int val = acc % 85;
+                       acc /= 85;
+                       buf[cnt] = en85[val];
+               }
+               buf += 5;
+       }
+       say("\n");
+
+       *buf = 0;
+}
+
+#ifdef DEBUG_85
+int main(int ac, char **av)
+{
+       char buf[1024];
+
+       if (!strcmp(av[1], "-e")) {
+               int len = strlen(av[2]);
+               encode_85(buf, av[2], len);
+               if (len <= 26) len = len + 'A' - 1;
+               else len = len + 'a' - 26 + 1;
+               printf("encoded: %c%s\n", len, buf);
+               return 0;
+       }
+       if (!strcmp(av[1], "-d")) {
+               int len = *av[2];
+               if ('A' <= len && len <= 'Z') len = len - 'A' + 1;
+               else len = len - 'a' + 26 + 1;
+               decode_85(buf, av[2]+1, len);
+               printf("decoded: %.*s\n", len, buf);
+               return 0;
+       }
+       if (!strcmp(av[1], "-t")) {
+               char t[4] = { -1,-1,-1,-1 };
+               encode_85(buf, t, 4);
+               printf("encoded: D%s\n", buf);
+               return 0;
+       }
+}
+#endif
diff --git a/builtin-check-ref-format.c b/builtin-check-ref-format.c
new file mode 100644 (file)
index 0000000..4a23936
--- /dev/null
@@ -0,0 +1,14 @@
+/*
+ * GIT - The information manager from hell
+ */
+
+#include "cache.h"
+#include "refs.h"
+#include "builtin.h"
+
+int cmd_check_ref_format(int argc, const char **argv, char **envp)
+{
+       if (argc != 2)
+               usage("git check-ref-format refname");
+       return !!check_ref_format(argv[1]);
+}
index 20873162f98478b60b069e97305ab34425c5dde4..27451d56134e08364c33c26d5074693dd4437d31 100644 (file)
@@ -84,8 +84,7 @@ static void stuff_change(struct diff_options *opt,
 
        if (opt->reverse_diff) {
                unsigned tmp;
-               const
-                       const unsigned char *tmp_u;
+               const unsigned char *tmp_u;
                const char *tmp_c;
                tmp = old_mode; old_mode = new_mode; new_mode = tmp;
                tmp_u = old_sha1; old_sha1 = new_sha1; new_sha1 = tmp_u;
@@ -123,7 +122,7 @@ static int builtin_diff_b_f(struct rev_info *revs,
        stuff_change(&revs->diffopt,
                     canon_mode(st.st_mode), canon_mode(st.st_mode),
                     blob[0].sha1, null_sha1,
-                    blob[0].name, path);
+                    path, path);
        diffcore_std(&revs->diffopt);
        diff_flush(&revs->diffopt);
        return 0;
@@ -133,7 +132,9 @@ static int builtin_diff_blobs(struct rev_info *revs,
                              int argc, const char **argv,
                              struct blobinfo *blob)
 {
-       /* Blobs */
+       /* Blobs: the arguments are reversed when setup_revisions()
+        * picked them up.
+        */
        unsigned mode = canon_mode(S_IFREG | 0644);
 
        while (1 < argc) {
@@ -146,8 +147,8 @@ static int builtin_diff_blobs(struct rev_info *revs,
        }
        stuff_change(&revs->diffopt,
                     mode, mode,
-                    blob[0].sha1, blob[1].sha1,
-                    blob[1].name, blob[1].name);
+                    blob[1].sha1, blob[0].sha1,
+                    blob[0].name, blob[0].name);
        diffcore_std(&revs->diffopt);
        diff_flush(&revs->diffopt);
        return 0;
diff --git a/builtin-grep.c b/builtin-grep.c
new file mode 100644 (file)
index 0000000..d09ddf0
--- /dev/null
@@ -0,0 +1,902 @@
+/*
+ * Builtin "git grep"
+ *
+ * Copyright (c) 2006 Junio C Hamano
+ */
+#include "cache.h"
+#include "blob.h"
+#include "tree.h"
+#include "commit.h"
+#include "tag.h"
+#include "tree-walk.h"
+#include "builtin.h"
+#include <regex.h>
+#include <fnmatch.h>
+#include <sys/wait.h>
+
+/*
+ * git grep pathspecs are somewhat different from diff-tree pathspecs;
+ * pathname wildcards are allowed.
+ */
+static int pathspec_matches(const char **paths, const char *name)
+{
+       int namelen, i;
+       if (!paths || !*paths)
+               return 1;
+       namelen = strlen(name);
+       for (i = 0; paths[i]; i++) {
+               const char *match = paths[i];
+               int matchlen = strlen(match);
+               const char *cp, *meta;
+
+               if ((matchlen <= namelen) &&
+                   !strncmp(name, match, matchlen) &&
+                   (match[matchlen-1] == '/' ||
+                    name[matchlen] == '\0' || name[matchlen] == '/'))
+                       return 1;
+               if (!fnmatch(match, name, 0))
+                       return 1;
+               if (name[namelen-1] != '/')
+                       continue;
+
+               /* We are being asked if the directory ("name") is worth
+                * descending into.
+                *
+                * Find the longest leading directory name that does
+                * not have metacharacter in the pathspec; the name
+                * we are looking at must overlap with that directory.
+                */
+               for (cp = match, meta = NULL; cp - match < matchlen; cp++) {
+                       char ch = *cp;
+                       if (ch == '*' || ch == '[' || ch == '?') {
+                               meta = cp;
+                               break;
+                       }
+               }
+               if (!meta)
+                       meta = cp; /* fully literal */
+
+               if (namelen <= meta - match) {
+                       /* Looking at "Documentation/" and
+                        * the pattern says "Documentation/howto/", or
+                        * "Documentation/diff*.txt".  The name we
+                        * have should match prefix.
+                        */
+                       if (!memcmp(match, name, namelen))
+                               return 1;
+                       continue;
+               }
+
+               if (meta - match < namelen) {
+                       /* Looking at "Documentation/howto/" and
+                        * the pattern says "Documentation/h*";
+                        * match up to "Do.../h"; this avoids descending
+                        * into "Documentation/technical/".
+                        */
+                       if (!memcmp(match, name, meta - match))
+                               return 1;
+                       continue;
+               }
+       }
+       return 0;
+}
+
+struct grep_pat {
+       struct grep_pat *next;
+       const char *origin;
+       int no;
+       const char *pattern;
+       regex_t regexp;
+};
+
+struct grep_opt {
+       struct grep_pat *pattern_list;
+       struct grep_pat **pattern_tail;
+       regex_t regexp;
+       unsigned linenum:1;
+       unsigned invert:1;
+       unsigned name_only:1;
+       unsigned unmatch_name_only:1;
+       unsigned count:1;
+       unsigned word_regexp:1;
+       unsigned fixed:1;
+#define GREP_BINARY_DEFAULT    0
+#define GREP_BINARY_NOMATCH    1
+#define GREP_BINARY_TEXT       2
+       unsigned binary:2;
+       int regflags;
+       unsigned pre_context;
+       unsigned post_context;
+};
+
+static void add_pattern(struct grep_opt *opt, const char *pat,
+                       const char *origin, int no)
+{
+       struct grep_pat *p = xcalloc(1, sizeof(*p));
+       p->pattern = pat;
+       p->origin = origin;
+       p->no = no;
+       *opt->pattern_tail = p;
+       opt->pattern_tail = &p->next;
+       p->next = NULL;
+}
+
+static void compile_patterns(struct grep_opt *opt)
+{
+       struct grep_pat *p;
+       for (p = opt->pattern_list; p; p = p->next) {
+               int err = regcomp(&p->regexp, p->pattern, opt->regflags);
+               if (err) {
+                       char errbuf[1024];
+                       char where[1024];
+                       if (p->no)
+                               sprintf(where, "In '%s' at %d, ",
+                                       p->origin, p->no);
+                       else if (p->origin)
+                               sprintf(where, "%s, ", p->origin);
+                       else
+                               where[0] = 0;
+                       regerror(err, &p->regexp, errbuf, 1024);
+                       regfree(&p->regexp);
+                       die("%s'%s': %s", where, p->pattern, errbuf);
+               }
+       }
+}
+
+static char *end_of_line(char *cp, unsigned long *left)
+{
+       unsigned long l = *left;
+       while (l && *cp != '\n') {
+               l--;
+               cp++;
+       }
+       *left = l;
+       return cp;
+}
+
+static int word_char(char ch)
+{
+       return isalnum(ch) || ch == '_';
+}
+
+static void show_line(struct grep_opt *opt, const char *bol, const char *eol,
+                     const char *name, unsigned lno, char sign)
+{
+       printf("%s%c", name, sign);
+       if (opt->linenum)
+               printf("%d%c", lno, sign);
+       printf("%.*s\n", (int)(eol-bol), bol);
+}
+
+/*
+ * NEEDSWORK: share code with diff.c
+ */
+#define FIRST_FEW_BYTES 8000
+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;
+}
+
+static int fixmatch(const char *pattern, char *line, regmatch_t *match)
+{
+       char *hit = strstr(line, pattern);
+       if (!hit) {
+               match->rm_so = match->rm_eo = -1;
+               return REG_NOMATCH;
+       }
+       else {
+               match->rm_so = hit - line;
+               match->rm_eo = match->rm_so + strlen(pattern);
+               return 0;
+       }
+}
+
+static int grep_buffer(struct grep_opt *opt, const char *name,
+                      char *buf, unsigned long size)
+{
+       char *bol = buf;
+       unsigned long left = size;
+       unsigned lno = 1;
+       struct pre_context_line {
+               char *bol;
+               char *eol;
+       } *prev = NULL, *pcl;
+       unsigned last_hit = 0;
+       unsigned last_shown = 0;
+       int binary_match_only = 0;
+       const char *hunk_mark = "";
+       unsigned count = 0;
+
+       if (buffer_is_binary(buf, size)) {
+               switch (opt->binary) {
+               case GREP_BINARY_DEFAULT:
+                       binary_match_only = 1;
+                       break;
+               case GREP_BINARY_NOMATCH:
+                       return 0; /* Assume unmatch */
+                       break;
+               default:
+                       break;
+               }
+       }
+
+       if (opt->pre_context)
+               prev = xcalloc(opt->pre_context, sizeof(*prev));
+       if (opt->pre_context || opt->post_context)
+               hunk_mark = "--\n";
+
+       while (left) {
+               regmatch_t pmatch[10];
+               char *eol, ch;
+               int hit = 0;
+               struct grep_pat *p;
+
+               eol = end_of_line(bol, &left);
+               ch = *eol;
+               *eol = 0;
+
+               for (p = opt->pattern_list; p; p = p->next) {
+                       if (!opt->fixed) {
+                               regex_t *exp = &p->regexp;
+                               hit = !regexec(exp, bol, ARRAY_SIZE(pmatch),
+                                              pmatch, 0);
+                       }
+                       else {
+                               hit = !fixmatch(p->pattern, bol, pmatch);
+                       }
+
+                       if (hit && opt->word_regexp) {
+                               /* Match beginning must be either
+                                * beginning of the line, or at word
+                                * boundary (i.e. the last char must
+                                * not be alnum or underscore).
+                                */
+                               if ((pmatch[0].rm_so < 0) ||
+                                   (eol - bol) <= pmatch[0].rm_so ||
+                                   (pmatch[0].rm_eo < 0) ||
+                                   (eol - bol) < pmatch[0].rm_eo)
+                                       die("regexp returned nonsense");
+                               if (pmatch[0].rm_so != 0 &&
+                                   word_char(bol[pmatch[0].rm_so-1]))
+                                       hit = 0;
+                               if (pmatch[0].rm_eo != (eol-bol) &&
+                                   word_char(bol[pmatch[0].rm_eo]))
+                                       hit = 0;
+                       }
+                       if (hit)
+                               break;
+               }
+               /* "grep -v -e foo -e bla" should list lines
+                * that do not have either, so inversion should
+                * be done outside.
+                */
+               if (opt->invert)
+                       hit = !hit;
+               if (opt->unmatch_name_only) {
+                       if (hit)
+                               return 0;
+                       goto next_line;
+               }
+               if (hit) {
+                       count++;
+                       if (binary_match_only) {
+                               printf("Binary file %s matches\n", name);
+                               return 1;
+                       }
+                       if (opt->name_only) {
+                               printf("%s\n", name);
+                               return 1;
+                       }
+                       /* Hit at this line.  If we haven't shown the
+                        * pre-context lines, we would need to show them.
+                        * When asked to do "count", this still show
+                        * the context which is nonsense, but the user
+                        * deserves to get that ;-).
+                        */
+                       if (opt->pre_context) {
+                               unsigned from;
+                               if (opt->pre_context < lno)
+                                       from = lno - opt->pre_context;
+                               else
+                                       from = 1;
+                               if (from <= last_shown)
+                                       from = last_shown + 1;
+                               if (last_shown && from != last_shown + 1)
+                                       printf(hunk_mark);
+                               while (from < lno) {
+                                       pcl = &prev[lno-from-1];
+                                       show_line(opt, pcl->bol, pcl->eol,
+                                                 name, from, '-');
+                                       from++;
+                               }
+                               last_shown = lno-1;
+                       }
+                       if (last_shown && lno != last_shown + 1)
+                               printf(hunk_mark);
+                       if (!opt->count)
+                               show_line(opt, bol, eol, name, lno, ':');
+                       last_shown = last_hit = lno;
+               }
+               else if (last_hit &&
+                        lno <= last_hit + opt->post_context) {
+                       /* If the last hit is within the post context,
+                        * we need to show this line.
+                        */
+                       if (last_shown && lno != last_shown + 1)
+                               printf(hunk_mark);
+                       show_line(opt, bol, eol, name, lno, '-');
+                       last_shown = lno;
+               }
+               if (opt->pre_context) {
+                       memmove(prev+1, prev,
+                               (opt->pre_context-1) * sizeof(*prev));
+                       prev->bol = bol;
+                       prev->eol = eol;
+               }
+
+       next_line:
+               *eol = ch;
+               bol = eol + 1;
+               if (!left)
+                       break;
+               left--;
+               lno++;
+       }
+
+       if (opt->unmatch_name_only) {
+               /* We did not see any hit, so we want to show this */
+               printf("%s\n", name);
+               return 1;
+       }
+
+       /* NEEDSWORK:
+        * The real "grep -c foo *.c" gives many "bar.c:0" lines,
+        * which feels mostly useless but sometimes useful.  Maybe
+        * make it another option?  For now suppress them.
+        */
+       if (opt->count && count)
+               printf("%s:%u\n", name, count);
+       return !!last_hit;
+}
+
+static int grep_sha1(struct grep_opt *opt, const unsigned char *sha1, const char *name)
+{
+       unsigned long size;
+       char *data;
+       char type[20];
+       int hit;
+       data = read_sha1_file(sha1, type, &size);
+       if (!data) {
+               error("'%s': unable to read %s", name, sha1_to_hex(sha1));
+               return 0;
+       }
+       hit = grep_buffer(opt, name, data, size);
+       free(data);
+       return hit;
+}
+
+static int grep_file(struct grep_opt *opt, const char *filename)
+{
+       struct stat st;
+       int i;
+       char *data;
+       if (lstat(filename, &st) < 0) {
+       err_ret:
+               if (errno != ENOENT)
+                       error("'%s': %s", filename, strerror(errno));
+               return 0;
+       }
+       if (!st.st_size)
+               return 0; /* empty file -- no grep hit */
+       if (!S_ISREG(st.st_mode))
+               return 0;
+       i = open(filename, O_RDONLY);
+       if (i < 0)
+               goto err_ret;
+       data = xmalloc(st.st_size + 1);
+       if (st.st_size != xread(i, data, st.st_size)) {
+               error("'%s': short read %s", filename, strerror(errno));
+               close(i);
+               free(data);
+               return 0;
+       }
+       close(i);
+       i = grep_buffer(opt, filename, data, st.st_size);
+       free(data);
+       return i;
+}
+
+static int exec_grep(int argc, const char **argv)
+{
+       pid_t pid;
+       int status;
+
+       argv[argc] = NULL;
+       pid = fork();
+       if (pid < 0)
+               return pid;
+       if (!pid) {
+               execvp("grep", (char **) argv);
+               exit(255);
+       }
+       while (waitpid(pid, &status, 0) < 0) {
+               if (errno == EINTR)
+                       continue;
+               return -1;
+       }
+       if (WIFEXITED(status)) {
+               if (!WEXITSTATUS(status))
+                       return 1;
+               return 0;
+       }
+       return -1;
+}
+
+#define MAXARGS 1000
+#define ARGBUF 4096
+#define push_arg(a) do { \
+       if (nr < MAXARGS) argv[nr++] = (a); \
+       else die("maximum number of args exceeded"); \
+       } while (0)
+
+static int external_grep(struct grep_opt *opt, const char **paths, int cached)
+{
+       int i, nr, argc, hit, len;
+       const char *argv[MAXARGS+1];
+       char randarg[ARGBUF];
+       char *argptr = randarg;
+       struct grep_pat *p;
+
+       len = nr = 0;
+       push_arg("grep");
+       if (opt->fixed)
+               push_arg("-F");
+       if (opt->linenum)
+               push_arg("-n");
+       if (opt->regflags & REG_EXTENDED)
+               push_arg("-E");
+       if (opt->word_regexp)
+               push_arg("-w");
+       if (opt->name_only)
+               push_arg("-l");
+       if (opt->unmatch_name_only)
+               push_arg("-L");
+       if (opt->count)
+               push_arg("-c");
+       if (opt->post_context || opt->pre_context) {
+               if (opt->post_context != opt->pre_context) {
+                       if (opt->pre_context) {
+                               push_arg("-B");
+                               len += snprintf(argptr, sizeof(randarg)-len,
+                                               "%u", opt->pre_context);
+                               if (sizeof(randarg) <= len)
+                                       die("maximum length of args exceeded");
+                               push_arg(argptr);
+                               argptr += len;
+                       }
+                       if (opt->post_context) {
+                               push_arg("-A");
+                               len += snprintf(argptr, sizeof(randarg)-len,
+                                               "%u", opt->post_context);
+                               if (sizeof(randarg) <= len)
+                                       die("maximum length of args exceeded");
+                               push_arg(argptr);
+                               argptr += len;
+                       }
+               }
+               else {
+                       push_arg("-C");
+                       len += snprintf(argptr, sizeof(randarg)-len,
+                                       "%u", opt->post_context);
+                       if (sizeof(randarg) <= len)
+                               die("maximum length of args exceeded");
+                       push_arg(argptr);
+                       argptr += len;
+               }
+       }
+       for (p = opt->pattern_list; p; p = p->next) {
+               push_arg("-e");
+               push_arg(p->pattern);
+       }
+
+       /*
+        * To make sure we get the header printed out when we want it,
+        * add /dev/null to the paths to grep.  This is unnecessary
+        * (and wrong) with "-l" or "-L", which always print out the
+        * name anyway.
+        *
+        * GNU grep has "-H", but this is portable.
+        */
+       if (!opt->name_only && !opt->unmatch_name_only)
+               push_arg("/dev/null");
+
+       hit = 0;
+       argc = nr;
+       for (i = 0; i < active_nr; i++) {
+               struct cache_entry *ce = active_cache[i];
+               const char *name;
+               if (ce_stage(ce) || !S_ISREG(ntohl(ce->ce_mode)))
+                       continue;
+               if (!pathspec_matches(paths, ce->name))
+                       continue;
+               name = ce->name;
+               if (name[0] == '-') {
+                       int len = ce_namelen(ce);
+                       name = xmalloc(len + 3);
+                       memcpy(name, "./", 2);
+                       memcpy(name + 2, ce->name, len + 1);
+               }
+               argv[argc++] = name;
+               if (argc < MAXARGS)
+                       continue;
+               hit += exec_grep(argc, argv);
+               argc = nr;
+       }
+       if (argc > nr)
+               hit += exec_grep(argc, argv);
+       return 0;
+}
+
+static int grep_cache(struct grep_opt *opt, const char **paths, int cached)
+{
+       int hit = 0;
+       int nr;
+       read_cache();
+
+#ifdef __unix__
+       /*
+        * Use the external "grep" command for the case where
+        * we grep through the checked-out files. It tends to
+        * be a lot more optimized
+        */
+       if (!cached) {
+               hit = external_grep(opt, paths, cached);
+               if (hit >= 0)
+                       return hit;
+       }
+#endif
+
+       for (nr = 0; nr < active_nr; nr++) {
+               struct cache_entry *ce = active_cache[nr];
+               if (ce_stage(ce) || !S_ISREG(ntohl(ce->ce_mode)))
+                       continue;
+               if (!pathspec_matches(paths, ce->name))
+                       continue;
+               if (cached)
+                       hit |= grep_sha1(opt, ce->sha1, ce->name);
+               else
+                       hit |= grep_file(opt, ce->name);
+       }
+       return hit;
+}
+
+static int grep_tree(struct grep_opt *opt, const char **paths,
+                    struct tree_desc *tree,
+                    const char *tree_name, const char *base)
+{
+       unsigned mode;
+       int len;
+       int hit = 0;
+       const char *path;
+       const unsigned char *sha1;
+       char *down;
+       char *path_buf = xmalloc(PATH_MAX + strlen(tree_name) + 100);
+
+       if (tree_name[0]) {
+               int offset = sprintf(path_buf, "%s:", tree_name);
+               down = path_buf + offset;
+               strcat(down, base);
+       }
+       else {
+               down = path_buf;
+               strcpy(down, base);
+       }
+       len = strlen(path_buf);
+
+       while (tree->size) {
+               int pathlen;
+               sha1 = tree_entry_extract(tree, &path, &mode);
+               pathlen = strlen(path);
+               strcpy(path_buf + len, path);
+
+               if (S_ISDIR(mode))
+                       /* Match "abc/" against pathspec to
+                        * decide if we want to descend into "abc"
+                        * directory.
+                        */
+                       strcpy(path_buf + len + pathlen, "/");
+
+               if (!pathspec_matches(paths, down))
+                       ;
+               else if (S_ISREG(mode))
+                       hit |= grep_sha1(opt, sha1, path_buf);
+               else if (S_ISDIR(mode)) {
+                       char type[20];
+                       struct tree_desc sub;
+                       void *data;
+                       data = read_sha1_file(sha1, type, &sub.size);
+                       if (!data)
+                               die("unable to read tree (%s)",
+                                   sha1_to_hex(sha1));
+                       sub.buf = data;
+                       hit |= grep_tree(opt, paths, &sub, tree_name, down);
+                       free(data);
+               }
+               update_tree_entry(tree);
+       }
+       return hit;
+}
+
+static int grep_object(struct grep_opt *opt, const char **paths,
+                      struct object *obj, const char *name)
+{
+       if (!strcmp(obj->type, blob_type))
+               return grep_sha1(opt, obj->sha1, name);
+       if (!strcmp(obj->type, commit_type) ||
+           !strcmp(obj->type, tree_type)) {
+               struct tree_desc tree;
+               void *data;
+               int hit;
+               data = read_object_with_reference(obj->sha1, tree_type,
+                                                 &tree.size, NULL);
+               if (!data)
+                       die("unable to read tree (%s)", sha1_to_hex(obj->sha1));
+               tree.buf = data;
+               hit = grep_tree(opt, paths, &tree, name, "");
+               free(data);
+               return hit;
+       }
+       die("unable to grep from object of type %s", obj->type);
+}
+
+static const char builtin_grep_usage[] =
+"git-grep <option>* <rev>* [-e] <pattern> [<path>...]";
+
+int cmd_grep(int argc, const char **argv, char **envp)
+{
+       int hit = 0;
+       int cached = 0;
+       int seen_dashdash = 0;
+       struct grep_opt opt;
+       struct object_list *list, **tail, *object_list = NULL;
+       const char *prefix = setup_git_directory();
+       const char **paths = NULL;
+       int i;
+
+       memset(&opt, 0, sizeof(opt));
+       opt.pattern_tail = &opt.pattern_list;
+       opt.regflags = REG_NEWLINE;
+
+       /*
+        * If there is no -- then the paths must exist in the working
+        * tree.  If there is no explicit pattern specified with -e or
+        * -f, we take the first unrecognized non option to be the
+        * pattern, but then what follows it must be zero or more
+        * valid refs up to the -- (if exists), and then existing
+        * paths.  If there is an explicit pattern, then the first
+        * unrecocnized non option is the beginning of the refs list
+        * that continues up to the -- (if exists), and then paths.
+        */
+
+       tail = &object_list;
+       while (1 < argc) {
+               const char *arg = argv[1];
+               argc--; argv++;
+               if (!strcmp("--cached", arg)) {
+                       cached = 1;
+                       continue;
+               }
+               if (!strcmp("-a", arg) ||
+                   !strcmp("--text", arg)) {
+                       opt.binary = GREP_BINARY_TEXT;
+                       continue;
+               }
+               if (!strcmp("-i", arg) ||
+                   !strcmp("--ignore-case", arg)) {
+                       opt.regflags |= REG_ICASE;
+                       continue;
+               }
+               if (!strcmp("-I", arg)) {
+                       opt.binary = GREP_BINARY_NOMATCH;
+                       continue;
+               }
+               if (!strcmp("-v", arg) ||
+                   !strcmp("--invert-match", arg)) {
+                       opt.invert = 1;
+                       continue;
+               }
+               if (!strcmp("-E", arg) ||
+                   !strcmp("--extended-regexp", arg)) {
+                       opt.regflags |= REG_EXTENDED;
+                       continue;
+               }
+               if (!strcmp("-F", arg) ||
+                   !strcmp("--fixed-strings", arg)) {
+                       opt.fixed = 1;
+                       continue;
+               }
+               if (!strcmp("-G", arg) ||
+                   !strcmp("--basic-regexp", arg)) {
+                       opt.regflags &= ~REG_EXTENDED;
+                       continue;
+               }
+               if (!strcmp("-n", arg)) {
+                       opt.linenum = 1;
+                       continue;
+               }
+               if (!strcmp("-H", arg)) {
+                       /* We always show the pathname, so this
+                        * is a noop.
+                        */
+                       continue;
+               }
+               if (!strcmp("-l", arg) ||
+                   !strcmp("--files-with-matches", arg)) {
+                       opt.name_only = 1;
+                       continue;
+               }
+               if (!strcmp("-L", arg) ||
+                   !strcmp("--files-without-match", arg)) {
+                       opt.unmatch_name_only = 1;
+                       continue;
+               }
+               if (!strcmp("-c", arg) ||
+                   !strcmp("--count", arg)) {
+                       opt.count = 1;
+                       continue;
+               }
+               if (!strcmp("-w", arg) ||
+                   !strcmp("--word-regexp", arg)) {
+                       opt.word_regexp = 1;
+                       continue;
+               }
+               if (!strncmp("-A", arg, 2) ||
+                   !strncmp("-B", arg, 2) ||
+                   !strncmp("-C", arg, 2) ||
+                   (arg[0] == '-' && '1' <= arg[1] && arg[1] <= '9')) {
+                       unsigned num;
+                       const char *scan;
+                       switch (arg[1]) {
+                       case 'A': case 'B': case 'C':
+                               if (!arg[2]) {
+                                       if (argc <= 1)
+                                               usage(builtin_grep_usage);
+                                       scan = *++argv;
+                                       argc--;
+                               }
+                               else
+                                       scan = arg + 2;
+                               break;
+                       default:
+                               scan = arg + 1;
+                               break;
+                       }
+                       if (sscanf(scan, "%u", &num) != 1)
+                               usage(builtin_grep_usage);
+                       switch (arg[1]) {
+                       case 'A':
+                               opt.post_context = num;
+                               break;
+                       default:
+                       case 'C':
+                               opt.post_context = num;
+                       case 'B':
+                               opt.pre_context = num;
+                               break;
+                       }
+                       continue;
+               }
+               if (!strcmp("-f", arg)) {
+                       FILE *patterns;
+                       int lno = 0;
+                       char buf[1024];
+                       if (argc <= 1)
+                               usage(builtin_grep_usage);
+                       patterns = fopen(argv[1], "r");
+                       if (!patterns)
+                               die("'%s': %s", argv[1], strerror(errno));
+                       while (fgets(buf, sizeof(buf), patterns)) {
+                               int len = strlen(buf);
+                               if (buf[len-1] == '\n')
+                                       buf[len-1] = 0;
+                               /* ignore empty line like grep does */
+                               if (!buf[0])
+                                       continue;
+                               add_pattern(&opt, strdup(buf), argv[1], ++lno);
+                       }
+                       fclose(patterns);
+                       argv++;
+                       argc--;
+                       continue;
+               }
+               if (!strcmp("-e", arg)) {
+                       if (1 < argc) {
+                               add_pattern(&opt, argv[1], "-e option", 0);
+                               argv++;
+                               argc--;
+                               continue;
+                       }
+                       usage(builtin_grep_usage);
+               }
+               if (!strcmp("--", arg))
+                       break;
+               if (*arg == '-')
+                       usage(builtin_grep_usage);
+
+               /* First unrecognized non-option token */
+               if (!opt.pattern_list) {
+                       add_pattern(&opt, arg, "command line", 0);
+                       break;
+               }
+               else {
+                       /* We are looking at the first path or rev;
+                        * it is found at argv[1] after leaving the
+                        * loop.
+                        */
+                       argc++; argv--;
+                       break;
+               }
+       }
+
+       if (!opt.pattern_list)
+               die("no pattern given.");
+       if ((opt.regflags != REG_NEWLINE) && opt.fixed)
+               die("cannot mix --fixed-strings and regexp");
+       if (!opt.fixed)
+               compile_patterns(&opt);
+
+       /* Check revs and then paths */
+       for (i = 1; i < argc; i++) {
+               const char *arg = argv[i];
+               unsigned char sha1[20];
+               /* Is it a rev? */
+               if (!get_sha1(arg, sha1)) {
+                       struct object *object = parse_object(sha1);
+                       struct object_list *elem;
+                       if (!object)
+                               die("bad object %s", arg);
+                       elem = object_list_insert(object, tail);
+                       elem->name = arg;
+                       tail = &elem->next;
+                       continue;
+               }
+               if (!strcmp(arg, "--")) {
+                       i++;
+                       seen_dashdash = 1;
+               }
+               break;
+       }
+
+       /* The rest are paths */
+       if (!seen_dashdash) {
+               int j;
+               for (j = i; j < argc; j++)
+                       verify_filename(prefix, argv[j]);
+       }
+
+       if (i < argc)
+               paths = get_pathspec(prefix, argv + i);
+       else if (prefix) {
+               paths = xcalloc(2, sizeof(const char *));
+               paths[0] = prefix;
+               paths[1] = NULL;
+       }
+
+       if (!object_list)
+               return !grep_cache(&opt, paths, cached);
+
+       if (cached)
+               die("both --cached and trees are given.");
+
+       for (list = object_list; list; list = list->next) {
+               struct object *real_obj;
+               real_obj = deref_tag(list->item, NULL, 0);
+               if (grep_object(&opt, paths, real_obj, list->name))
+                       hit = 1;
+       }
+       return !hit;
+}
diff --git a/builtin-init-db.c b/builtin-init-db.c
new file mode 100644 (file)
index 0000000..2a1384c
--- /dev/null
@@ -0,0 +1,293 @@
+/*
+ * GIT - The information manager from hell
+ *
+ * Copyright (C) Linus Torvalds, 2005
+ */
+#include "cache.h"
+#include "builtin.h"
+
+#ifndef DEFAULT_GIT_TEMPLATE_DIR
+#define DEFAULT_GIT_TEMPLATE_DIR "/usr/share/git-core/templates/"
+#endif
+
+static void safe_create_dir(const char *dir, int share)
+{
+       if (mkdir(dir, 0777) < 0) {
+               if (errno != EEXIST) {
+                       perror(dir);
+                       exit(1);
+               }
+       }
+       else if (share && adjust_shared_perm(dir))
+               die("Could not make %s writable by group\n", dir);
+}
+
+static int copy_file(const char *dst, const char *src, int mode)
+{
+       int fdi, fdo, status;
+
+       mode = (mode & 0111) ? 0777 : 0666;
+       if ((fdi = open(src, O_RDONLY)) < 0)
+               return fdi;
+       if ((fdo = open(dst, O_WRONLY | O_CREAT | O_EXCL, mode)) < 0) {
+               close(fdi);
+               return fdo;
+       }
+       status = copy_fd(fdi, fdo);
+       close(fdo);
+
+       if (!status && adjust_shared_perm(dst))
+               return -1;
+
+       return status;
+}
+
+static void copy_templates_1(char *path, int baselen,
+                            char *template, int template_baselen,
+                            DIR *dir)
+{
+       struct dirent *de;
+
+       /* Note: if ".git/hooks" file exists in the repository being
+        * re-initialized, /etc/core-git/templates/hooks/update would
+        * cause git-init-db to fail here.  I think this is sane but
+        * it means that the set of templates we ship by default, along
+        * with the way the namespace under .git/ is organized, should
+        * be really carefully chosen.
+        */
+       safe_create_dir(path, 1);
+       while ((de = readdir(dir)) != NULL) {
+               struct stat st_git, st_template;
+               int namelen;
+               int exists = 0;
+
+               if (de->d_name[0] == '.')
+                       continue;
+               namelen = strlen(de->d_name);
+               if ((PATH_MAX <= baselen + namelen) ||
+                   (PATH_MAX <= template_baselen + namelen))
+                       die("insanely long template name %s", de->d_name);
+               memcpy(path + baselen, de->d_name, namelen+1);
+               memcpy(template + template_baselen, de->d_name, namelen+1);
+               if (lstat(path, &st_git)) {
+                       if (errno != ENOENT)
+                               die("cannot stat %s", path);
+               }
+               else
+                       exists = 1;
+
+               if (lstat(template, &st_template))
+                       die("cannot stat template %s", template);
+
+               if (S_ISDIR(st_template.st_mode)) {
+                       DIR *subdir = opendir(template);
+                       int baselen_sub = baselen + namelen;
+                       int template_baselen_sub = template_baselen + namelen;
+                       if (!subdir)
+                               die("cannot opendir %s", template);
+                       path[baselen_sub++] =
+                               template[template_baselen_sub++] = '/';
+                       path[baselen_sub] =
+                               template[template_baselen_sub] = 0;
+                       copy_templates_1(path, baselen_sub,
+                                        template, template_baselen_sub,
+                                        subdir);
+                       closedir(subdir);
+               }
+               else if (exists)
+                       continue;
+               else if (S_ISLNK(st_template.st_mode)) {
+                       char lnk[256];
+                       int len;
+                       len = readlink(template, lnk, sizeof(lnk));
+                       if (len < 0)
+                               die("cannot readlink %s", template);
+                       if (sizeof(lnk) <= len)
+                               die("insanely long symlink %s", template);
+                       lnk[len] = 0;
+                       if (symlink(lnk, path))
+                               die("cannot symlink %s %s", lnk, path);
+               }
+               else if (S_ISREG(st_template.st_mode)) {
+                       if (copy_file(path, template, st_template.st_mode))
+                               die("cannot copy %s to %s", template, path);
+               }
+               else
+                       error("ignoring template %s", template);
+       }
+}
+
+static void copy_templates(const char *git_dir, int len, const char *template_dir)
+{
+       char path[PATH_MAX];
+       char template_path[PATH_MAX];
+       int template_len;
+       DIR *dir;
+
+       if (!template_dir)
+               template_dir = DEFAULT_GIT_TEMPLATE_DIR;
+       strcpy(template_path, template_dir);
+       template_len = strlen(template_path);
+       if (template_path[template_len-1] != '/') {
+               template_path[template_len++] = '/';
+               template_path[template_len] = 0;
+       }
+       dir = opendir(template_path);
+       if (!dir) {
+               fprintf(stderr, "warning: templates not found %s\n",
+                       template_dir);
+               return;
+       }
+
+       /* Make sure that template is from the correct vintage */
+       strcpy(template_path + template_len, "config");
+       repository_format_version = 0;
+       git_config_from_file(check_repository_format_version,
+                            template_path);
+       template_path[template_len] = 0;
+
+       if (repository_format_version &&
+           repository_format_version != GIT_REPO_VERSION) {
+               fprintf(stderr, "warning: not copying templates of "
+                       "a wrong format version %d from '%s'\n",
+                       repository_format_version,
+                       template_dir);
+               closedir(dir);
+               return;
+       }
+
+       memcpy(path, git_dir, len);
+       path[len] = 0;
+       copy_templates_1(path, len,
+                        template_path, template_len,
+                        dir);
+       closedir(dir);
+}
+
+static void create_default_files(const char *git_dir, const char *template_path)
+{
+       unsigned len = strlen(git_dir);
+       static char path[PATH_MAX];
+       unsigned char sha1[20];
+       struct stat st1;
+       char repo_version_string[10];
+
+       if (len > sizeof(path)-50)
+               die("insane git directory %s", git_dir);
+       memcpy(path, git_dir, len);
+
+       if (len && path[len-1] != '/')
+               path[len++] = '/';
+
+       /*
+        * Create .git/refs/{heads,tags}
+        */
+       strcpy(path + len, "refs");
+       safe_create_dir(path, 1);
+       strcpy(path + len, "refs/heads");
+       safe_create_dir(path, 1);
+       strcpy(path + len, "refs/tags");
+       safe_create_dir(path, 1);
+
+       /* First copy the templates -- we might have the default
+        * config file there, in which case we would want to read
+        * from it after installing.
+        */
+       path[len] = 0;
+       copy_templates(path, len, template_path);
+
+       git_config(git_default_config);
+
+       /*
+        * Create the default symlink from ".git/HEAD" to the "master"
+        * branch, if it does not exist yet.
+        */
+       strcpy(path + len, "HEAD");
+       if (read_ref(path, sha1) < 0) {
+               if (create_symref(path, "refs/heads/master") < 0)
+                       exit(1);
+       }
+
+       /* This forces creation of new config file */
+       sprintf(repo_version_string, "%d", GIT_REPO_VERSION);
+       git_config_set("core.repositoryformatversion", repo_version_string);
+
+       path[len] = 0;
+       strcpy(path + len, "config");
+
+       /* Check filemode trustability */
+       if (!lstat(path, &st1)) {
+               struct stat st2;
+               int filemode = (!chmod(path, st1.st_mode ^ S_IXUSR) &&
+                               !lstat(path, &st2) &&
+                               st1.st_mode != st2.st_mode);
+               git_config_set("core.filemode",
+                              filemode ? "true" : "false");
+       }
+}
+
+static const char init_db_usage[] =
+"git-init-db [--template=<template-directory>] [--shared]";
+
+/*
+ * If you want to, you can share the DB area with any number of branches.
+ * That has advantages: you can save space by sharing all the SHA1 objects.
+ * On the other hand, it might just make lookup slower and messier. You
+ * be the judge.  The default case is to have one DB per managed directory.
+ */
+int cmd_init_db(int argc, const char **argv, char **envp)
+{
+       const char *git_dir;
+       const char *sha1_dir;
+       const char *template_dir = NULL;
+       char *path;
+       int len, i;
+
+       for (i = 1; i < argc; i++, argv++) {
+               const char *arg = argv[1];
+               if (!strncmp(arg, "--template=", 11))
+                       template_dir = arg+11;
+               else if (!strcmp(arg, "--shared"))
+                       shared_repository = 1;
+               else
+                       die(init_db_usage);
+       }
+
+       /*
+        * Set up the default .git directory contents
+        */
+       git_dir = getenv(GIT_DIR_ENVIRONMENT);
+       if (!git_dir) {
+               git_dir = DEFAULT_GIT_DIR_ENVIRONMENT;
+               fprintf(stderr, "defaulting to local storage area\n");
+       }
+       safe_create_dir(git_dir, 0);
+
+       /* Check to see if the repository version is right.
+        * Note that a newly created repository does not have
+        * config file, so this will not fail.  What we are catching
+        * is an attempt to reinitialize new repository with an old tool.
+        */
+       check_repository_format();
+
+       create_default_files(git_dir, template_dir);
+
+       /*
+        * And set up the object store.
+        */
+       sha1_dir = get_object_directory();
+       len = strlen(sha1_dir);
+       path = xmalloc(len + 40);
+       memcpy(path, sha1_dir, len);
+
+       safe_create_dir(sha1_dir, 1);
+       strcpy(path+len, "/pack");
+       safe_create_dir(path, 1);
+       strcpy(path+len, "/info");
+       safe_create_dir(path, 1);
+
+       if (shared_repository)
+               git_config_set("core.sharedRepository", "true");
+
+       return 0;
+}
index d5bbc1cc06931974de46078b5cac17e315177e40..12a6d19203f054d892c04873fef0f92a5c2ef0c9 100644 (file)
@@ -23,6 +23,13 @@ static int cmd_log_wc(int argc, const char **argv, char **envp,
        rev->commit_format = CMIT_FMT_DEFAULT;
        rev->verbose_header = 1;
        argc = setup_revisions(argc, argv, rev, "HEAD");
+       if (rev->always_show_header) {
+               if (rev->diffopt.pickaxe || rev->diffopt.filter) {
+                       rev->always_show_header = 0;
+                       if (rev->diffopt.output_format == DIFF_FORMAT_RAW)
+                               rev->diffopt.output_format = DIFF_FORMAT_NO_OUTPUT;
+               }
+       }
 
        if (argc > 1)
                die("unrecognized argument: %s", argv[1]);
diff --git a/builtin-rev-list.c b/builtin-rev-list.c
new file mode 100644 (file)
index 0000000..7942297
--- /dev/null
@@ -0,0 +1,358 @@
+#include "cache.h"
+#include "refs.h"
+#include "tag.h"
+#include "commit.h"
+#include "tree.h"
+#include "blob.h"
+#include "tree-walk.h"
+#include "diff.h"
+#include "revision.h"
+#include "builtin.h"
+
+/* bits #0-15 in revision.h */
+
+#define COUNTED                (1u<<16)
+
+static const char rev_list_usage[] =
+"git-rev-list [OPTION] <commit-id>... [ -- paths... ]\n"
+"  limiting output:\n"
+"    --max-count=nr\n"
+"    --max-age=epoch\n"
+"    --min-age=epoch\n"
+"    --sparse\n"
+"    --no-merges\n"
+"    --remove-empty\n"
+"    --all\n"
+"  ordering output:\n"
+"    --topo-order\n"
+"    --date-order\n"
+"  formatting output:\n"
+"    --parents\n"
+"    --objects | --objects-edge\n"
+"    --unpacked\n"
+"    --header | --pretty\n"
+"    --abbrev=nr | --no-abbrev\n"
+"    --abbrev-commit\n"
+"  special purpose:\n"
+"    --bisect"
+;
+
+static struct rev_info revs;
+
+static int bisect_list = 0;
+static int show_timestamp = 0;
+static int hdr_termination = 0;
+static const char *header_prefix;
+
+static void show_commit(struct commit *commit)
+{
+       if (show_timestamp)
+               printf("%lu ", commit->date);
+       if (header_prefix)
+               fputs(header_prefix, stdout);
+       if (commit->object.flags & BOUNDARY)
+               putchar('-');
+       if (revs.abbrev_commit && revs.abbrev)
+               fputs(find_unique_abbrev(commit->object.sha1, revs.abbrev),
+                     stdout);
+       else
+               fputs(sha1_to_hex(commit->object.sha1), stdout);
+       if (revs.parents) {
+               struct commit_list *parents = commit->parents;
+               while (parents) {
+                       struct object *o = &(parents->item->object);
+                       parents = parents->next;
+                       if (o->flags & TMP_MARK)
+                               continue;
+                       printf(" %s", sha1_to_hex(o->sha1));
+                       o->flags |= TMP_MARK;
+               }
+               /* TMP_MARK is a general purpose flag that can
+                * be used locally, but the user should clean
+                * things up after it is done with them.
+                */
+               for (parents = commit->parents;
+                    parents;
+                    parents = parents->next)
+                       parents->item->object.flags &= ~TMP_MARK;
+       }
+       if (revs.commit_format == CMIT_FMT_ONELINE)
+               putchar(' ');
+       else
+               putchar('\n');
+
+       if (revs.verbose_header) {
+               static char pretty_header[16384];
+               pretty_print_commit(revs.commit_format, commit, ~0,
+                                   pretty_header, sizeof(pretty_header),
+                                   revs.abbrev, NULL);
+               printf("%s%c", pretty_header, hdr_termination);
+       }
+       fflush(stdout);
+}
+
+static struct object_list **process_blob(struct blob *blob,
+                                        struct object_list **p,
+                                        struct name_path *path,
+                                        const char *name)
+{
+       struct object *obj = &blob->object;
+
+       if (!revs.blob_objects)
+               return p;
+       if (obj->flags & (UNINTERESTING | SEEN))
+               return p;
+       obj->flags |= SEEN;
+       return add_object(obj, p, path, name);
+}
+
+static struct object_list **process_tree(struct tree *tree,
+                                        struct object_list **p,
+                                        struct name_path *path,
+                                        const char *name)
+{
+       struct object *obj = &tree->object;
+       struct tree_entry_list *entry;
+       struct name_path me;
+
+       if (!revs.tree_objects)
+               return p;
+       if (obj->flags & (UNINTERESTING | SEEN))
+               return p;
+       if (parse_tree(tree) < 0)
+               die("bad tree object %s", sha1_to_hex(obj->sha1));
+       obj->flags |= SEEN;
+       p = add_object(obj, p, path, name);
+       me.up = path;
+       me.elem = name;
+       me.elem_len = strlen(name);
+       entry = tree->entries;
+       tree->entries = NULL;
+       while (entry) {
+               struct tree_entry_list *next = entry->next;
+               if (entry->directory)
+                       p = process_tree(entry->item.tree, p, &me, entry->name);
+               else
+                       p = process_blob(entry->item.blob, p, &me, entry->name);
+               free(entry);
+               entry = next;
+       }
+       return p;
+}
+
+static void show_commit_list(struct rev_info *revs)
+{
+       struct commit *commit;
+       struct object_list *objects = NULL, **p = &objects, *pending;
+
+       while ((commit = get_revision(revs)) != NULL) {
+               p = process_tree(commit->tree, p, NULL, "");
+               show_commit(commit);
+       }
+       for (pending = revs->pending_objects; pending; pending = pending->next) {
+               struct object *obj = pending->item;
+               const char *name = pending->name;
+               if (obj->flags & (UNINTERESTING | SEEN))
+                       continue;
+               if (obj->type == tag_type) {
+                       obj->flags |= SEEN;
+                       p = add_object(obj, p, NULL, name);
+                       continue;
+               }
+               if (obj->type == tree_type) {
+                       p = process_tree((struct tree *)obj, p, NULL, name);
+                       continue;
+               }
+               if (obj->type == blob_type) {
+                       p = process_blob((struct blob *)obj, p, NULL, name);
+                       continue;
+               }
+               die("unknown pending object %s (%s)", sha1_to_hex(obj->sha1), name);
+       }
+       while (objects) {
+               /* An object with name "foo\n0000000..." can be used to
+                * confuse downstream git-pack-objects very badly.
+                */
+               const char *ep = strchr(objects->name, '\n');
+               if (ep) {
+                       printf("%s %.*s\n", sha1_to_hex(objects->item->sha1),
+                              (int) (ep - objects->name),
+                              objects->name);
+               }
+               else
+                       printf("%s %s\n", sha1_to_hex(objects->item->sha1), objects->name);
+               objects = objects->next;
+       }
+}
+
+/*
+ * This is a truly stupid algorithm, but it's only
+ * used for bisection, and we just don't care enough.
+ *
+ * We care just barely enough to avoid recursing for
+ * non-merge entries.
+ */
+static int count_distance(struct commit_list *entry)
+{
+       int nr = 0;
+
+       while (entry) {
+               struct commit *commit = entry->item;
+               struct commit_list *p;
+
+               if (commit->object.flags & (UNINTERESTING | COUNTED))
+                       break;
+               if (!revs.prune_fn || (commit->object.flags & TREECHANGE))
+                       nr++;
+               commit->object.flags |= COUNTED;
+               p = commit->parents;
+               entry = p;
+               if (p) {
+                       p = p->next;
+                       while (p) {
+                               nr += count_distance(p);
+                               p = p->next;
+                       }
+               }
+       }
+
+       return nr;
+}
+
+static void clear_distance(struct commit_list *list)
+{
+       while (list) {
+               struct commit *commit = list->item;
+               commit->object.flags &= ~COUNTED;
+               list = list->next;
+       }
+}
+
+static struct commit_list *find_bisection(struct commit_list *list)
+{
+       int nr, closest;
+       struct commit_list *p, *best;
+
+       nr = 0;
+       p = list;
+       while (p) {
+               if (!revs.prune_fn || (p->item->object.flags & TREECHANGE))
+                       nr++;
+               p = p->next;
+       }
+       closest = 0;
+       best = list;
+
+       for (p = list; p; p = p->next) {
+               int distance;
+
+               if (revs.prune_fn && !(p->item->object.flags & TREECHANGE))
+                       continue;
+
+               distance = count_distance(p);
+               clear_distance(list);
+               if (nr - distance < distance)
+                       distance = nr - distance;
+               if (distance > closest) {
+                       best = p;
+                       closest = distance;
+               }
+       }
+       if (best)
+               best->next = NULL;
+       return best;
+}
+
+static void mark_edge_parents_uninteresting(struct commit *commit)
+{
+       struct commit_list *parents;
+
+       for (parents = commit->parents; parents; parents = parents->next) {
+               struct commit *parent = parents->item;
+               if (!(parent->object.flags & UNINTERESTING))
+                       continue;
+               mark_tree_uninteresting(parent->tree);
+               if (revs.edge_hint && !(parent->object.flags & SHOWN)) {
+                       parent->object.flags |= SHOWN;
+                       printf("-%s\n", sha1_to_hex(parent->object.sha1));
+               }
+       }
+}
+
+static void mark_edges_uninteresting(struct commit_list *list)
+{
+       for ( ; list; list = list->next) {
+               struct commit *commit = list->item;
+
+               if (commit->object.flags & UNINTERESTING) {
+                       mark_tree_uninteresting(commit->tree);
+                       continue;
+               }
+               mark_edge_parents_uninteresting(commit);
+       }
+}
+
+int cmd_rev_list(int argc, const char **argv, char **envp)
+{
+       struct commit_list *list;
+       int i;
+
+       init_revisions(&revs);
+       revs.abbrev = 0;
+       revs.commit_format = CMIT_FMT_UNSPECIFIED;
+       argc = setup_revisions(argc, argv, &revs, NULL);
+
+       for (i = 1 ; i < argc; i++) {
+               const char *arg = argv[i];
+
+               if (!strcmp(arg, "--header")) {
+                       revs.verbose_header = 1;
+                       continue;
+               }
+               if (!strcmp(arg, "--timestamp")) {
+                       show_timestamp = 1;
+                       continue;
+               }
+               if (!strcmp(arg, "--bisect")) {
+                       bisect_list = 1;
+                       continue;
+               }
+               usage(rev_list_usage);
+
+       }
+       if (revs.commit_format != CMIT_FMT_UNSPECIFIED) {
+               /* The command line has a --pretty  */
+               hdr_termination = '\n';
+               if (revs.commit_format == CMIT_FMT_ONELINE)
+                       header_prefix = "";
+               else
+                       header_prefix = "commit ";
+       }
+       else if (revs.verbose_header)
+               /* Only --header was specified */
+               revs.commit_format = CMIT_FMT_RAW;
+
+       list = revs.commits;
+
+       if ((!list &&
+            (!(revs.tag_objects||revs.tree_objects||revs.blob_objects) &&
+             !revs.pending_objects)) ||
+           revs.diff)
+               usage(rev_list_usage);
+
+       save_commit_buffer = revs.verbose_header;
+       track_object_refs = 0;
+       if (bisect_list)
+               revs.limited = 1;
+
+       prepare_revision_walk(&revs);
+       if (revs.tree_objects)
+               mark_edges_uninteresting(revs.commits);
+
+       if (bisect_list)
+               revs.commits = find_bisection(revs.commits);
+
+       show_commit_list(&revs);
+
+       return 0;
+}
index 635a00bf7a20ef347944f364c5f89e978ce50af9..aaddef352a273970885f5c73182ea8592dd182ab 100644 (file)
--- a/builtin.h
+++ b/builtin.h
@@ -24,5 +24,9 @@ extern int cmd_format_patch(int argc, const char **argv, char **envp);
 extern int cmd_count_objects(int argc, const char **argv, char **envp);
 
 extern int cmd_push(int argc, const char **argv, char **envp);
+extern int cmd_grep(int argc, const char **argv, char **envp);
+extern int cmd_rev_list(int argc, const char **argv, char **envp);
+extern int cmd_check_ref_format(int argc, const char **argv, char **envp);
+extern int cmd_init_db(int argc, const char **argv, char **envp);
 
 #endif
diff --git a/cache.h b/cache.h
index 605b80e268684ebdd1f0d707b307ade48ac24d03..73ae0713bd7a991ffa922170a445da48b78212dd 100644 (file)
--- a/cache.h
+++ b/cache.h
@@ -158,6 +158,12 @@ extern int index_pipe(unsigned char *sha1, int fd, const char *type, int write_o
 extern int index_path(unsigned char *sha1, const char *path, struct stat *st, int write_object);
 extern void fill_stat_cache_info(struct cache_entry *ce, struct stat *st);
 
+#define REFRESH_REALLY         0x0001  /* ignore_valid */
+#define REFRESH_UNMERGED       0x0002  /* allow unmerged */
+#define REFRESH_QUIET          0x0004  /* be quiet about it */
+#define REFRESH_IGNORE_MISSING 0x0008  /* ignore non-existent */
+extern int refresh_cache(unsigned int flags);
+
 struct cache_file {
        struct cache_file *next;
        char lockfile[PATH_MAX];
@@ -364,4 +370,8 @@ extern int receive_keep_pack(int fd[2], const char *me, int quiet);
 /* pager.c */
 extern void setup_pager(void);
 
+/* base85 */
+int decode_85(char *dst, char *line, int linelen);
+void encode_85(char *buf, unsigned char *data, int bytes);
+
 #endif /* CACHE_H */
index 628f6cada89431acd23d612f7e0b10649348e088..7413feed78f20feb635ad55f098c59a2afc2a54c 100644 (file)
@@ -103,8 +103,10 @@ int main(int argc, char **argv)
 
        setup_git_directory();
        git_config(git_default_config);
-       if (argc != 3 || get_sha1(argv[2], sha1))
+       if (argc != 3)
                usage("git-cat-file [-t|-s|-e|-p|<type>] <sha1>");
+       if (get_sha1(argv[2], sha1))
+               die("Not a valid object name %s", argv[2]);
 
        opt = 0;
        if ( argv[1][0] == '-' ) {
@@ -133,8 +135,7 @@ int main(int argc, char **argv)
                return !has_sha1_file(sha1);
 
        case 'p':
-               if (get_sha1(argv[2], sha1) ||
-                   sha1_object_info(sha1, type, NULL))
+               if (sha1_object_info(sha1, type, NULL))
                        die("Not a valid object name %s", argv[2]);
 
                /* custom pretty-print here */
diff --git a/check-ref-format.c b/check-ref-format.c
deleted file mode 100644 (file)
index a0adb3d..0000000
+++ /dev/null
@@ -1,17 +0,0 @@
-/*
- * GIT - The information manager from hell
- */
-
-#include "cache.h"
-#include "refs.h"
-
-#include <stdio.h>
-
-int main(int ac, char **av)
-{
-       if (ac != 2)
-               usage("git-check-ref-format refname");
-       if (check_ref_format(av[1]))
-               exit(1);
-       return 0;
-}
index 0b9cabc61cafa06501064c0b2cccbc3d434904c2..cc3a745c149b38ae250ac5656bb4a4843a95f6a4 100644 (file)
@@ -277,7 +277,7 @@ int main(int argc, char **argv)
                        die("git-checkout-index: don't mix '--stdin' and explicit filenames");
                p = prefix_path(prefix, prefix_length, arg);
                checkout_file(p);
-               if (p != arg)
+               if (p < arg || p > arg + strlen(arg))
                        free((char*)p);
        }
 
@@ -299,7 +299,7 @@ int main(int argc, char **argv)
                                path_name = buf.buf;
                        p = prefix_path(prefix, prefix_length, path_name);
                        checkout_file(p);
-                       if (p != path_name)
+                       if (p < path_name || p > path_name + strlen(path_name))
                                free((char *)p);
                        if (path_name != buf.buf)
                                free(path_name);
index 8a8fe3863a002ea6b62a760d5413dfe0fd0ffde7..64b20cce2427fcf0cd9565f5e24efce78abb0088 100644 (file)
@@ -608,6 +608,7 @@ static int show_patch_diff(struct combine_diff_path *elem, int num_parent,
        int abbrev = opt->full_index ? 40 : DEFAULT_ABBREV;
        mmfile_t result_file;
 
+       context = opt->context;
        /* Read the result of merge first */
        if (!working_tree_file)
                result = grab_blob(elem->sha1, &result_size);
index bad72e89e8d83360f75c6f260d2b358fd7f2bf36..0320036e802f820760dd197f745698acb5531bbb 100644 (file)
@@ -91,15 +91,19 @@ int main(int argc, char **argv)
 
        git_config(git_default_config);
 
-       if (argc < 2 || get_sha1(argv[1], tree_sha1) < 0)
+       if (argc < 2)
                usage(commit_tree_usage);
+       if (get_sha1(argv[1], tree_sha1))
+               die("Not a valid object name %s", argv[1]);
 
        check_valid(tree_sha1, tree_type);
        for (i = 2; i < argc; i += 2) {
                char *a, *b;
                a = argv[i]; b = argv[i+1];
-               if (!b || strcmp(a, "-p") || get_sha1(b, parent_sha1[parents]))
+               if (!b || strcmp(a, "-p"))
                        usage(commit_tree_usage);
+               if (get_sha1(b, parent_sha1[parents]))
+                       die("Not a valid object name %s", b);
                check_valid(parent_sha1[parents], commit_type);
                if (new_parent(parents))
                        parents++;
index 93b3903ea78fac0b5a40074ec64d0c98bb8cfa94..84558bac29afd64e295a451ad7baa099237ae045 100644 (file)
--- a/commit.c
+++ b/commit.c
@@ -22,25 +22,34 @@ struct sort_node
 
 const char *commit_type = "commit";
 
+struct cmt_fmt_map {
+       const char *n;
+       size_t cmp_len;
+       enum cmit_fmt v;
+} cmt_fmts[] = {
+       { "raw",        1,      CMIT_FMT_RAW },
+       { "medium",     1,      CMIT_FMT_MEDIUM },
+       { "short",      1,      CMIT_FMT_SHORT },
+       { "email",      1,      CMIT_FMT_EMAIL },
+       { "full",       5,      CMIT_FMT_FULL },
+       { "fuller",     5,      CMIT_FMT_FULLER },
+       { "oneline",    1,      CMIT_FMT_ONELINE },
+};
+
 enum cmit_fmt get_commit_format(const char *arg)
 {
-       if (!*arg)
+       int i;
+
+       if (!arg || !*arg)
                return CMIT_FMT_DEFAULT;
-       if (!strcmp(arg, "=raw"))
-               return CMIT_FMT_RAW;
-       if (!strcmp(arg, "=medium"))
-               return CMIT_FMT_MEDIUM;
-       if (!strcmp(arg, "=short"))
-               return CMIT_FMT_SHORT;
-       if (!strcmp(arg, "=full"))
-               return CMIT_FMT_FULL;
-       if (!strcmp(arg, "=fuller"))
-               return CMIT_FMT_FULLER;
-       if (!strcmp(arg, "=email"))
-               return CMIT_FMT_EMAIL;
-       if (!strcmp(arg, "=oneline"))
-               return CMIT_FMT_ONELINE;
-       die("invalid --pretty format");
+       if (*arg == '=')
+               arg++;
+       for (i = 0; i < ARRAY_SIZE(cmt_fmts); i++) {
+               if (!strncmp(arg, cmt_fmts[i].n, cmt_fmts[i].cmp_len))
+                       return cmt_fmts[i].v;
+       }
+
+       die("invalid --pretty format: %s", arg);
 }
 
 static struct commit *check_commit(struct object *obj,
index 41066e4f4e0408b23068e9a75911784cbefc65ac..0248c6d8a58eedff72352022404e765d31adc5de 100644 (file)
--- a/config.c
+++ b/config.c
@@ -134,6 +134,41 @@ static int get_value(config_fn_t fn, char *name, unsigned int len)
        return fn(name, value);
 }
 
+static int get_extended_base_var(char *name, int baselen, int c)
+{
+       do {
+               if (c == '\n')
+                       return -1;
+               c = get_next_char();
+       } while (isspace(c));
+
+       /* We require the format to be '[base "extension"]' */
+       if (c != '"')
+               return -1;
+       name[baselen++] = '.';
+
+       for (;;) {
+               int c = get_next_char();
+               if (c == '\n')
+                       return -1;
+               if (c == '"')
+                       break;
+               if (c == '\\') {
+                       c = get_next_char();
+                       if (c == '\n')
+                               return -1;
+               }
+               name[baselen++] = c;
+               if (baselen > MAXNAME / 2)
+                       return -1;
+       }
+
+       /* Final ']' */
+       if (get_next_char() != ']')
+               return -1;
+       return baselen;
+}
+
 static int get_base_var(char *name)
 {
        int baselen = 0;
@@ -144,6 +179,8 @@ static int get_base_var(char *name)
                        return -1;
                if (c == ']')
                        return baselen;
+               if (isspace(c))
+                       return get_extended_base_var(name, baselen, c);
                if (!isalnum(c) && c != '.')
                        return -1;
                if (baselen > MAXNAME / 2)
@@ -335,10 +372,12 @@ static int store_aux(const char* key, const char* value)
                        store.offset[store.seen] = ftell(config_file);
                        store.state = KEY_SEEN;
                        store.seen++;
-               } else if (strrchr(key, '.') - key == store.baselen &&
+               } else {
+                       if (strrchr(key, '.') - key == store.baselen &&
                              !strncmp(key, store.key, store.baselen)) {
                                        store.state = SECTION_SEEN;
                                        store.offset[store.seen] = ftell(config_file);
+                       }
                }
        }
        return 0;
@@ -346,8 +385,30 @@ static int store_aux(const char* key, const char* value)
 
 static void store_write_section(int fd, const char* key)
 {
+       const char *dot = strchr(key, '.');
+       int len1 = store.baselen, len2 = -1;
+
+       dot = strchr(key, '.');
+       if (dot) {
+               int dotlen = dot - key;
+               if (dotlen < len1) {
+                       len2 = len1 - dotlen - 1;
+                       len1 = dotlen;
+               }
+       }
+
        write(fd, "[", 1);
-       write(fd, key, store.baselen);
+       write(fd, key, len1);
+       if (len2 >= 0) {
+               write(fd, " \"", 2);
+               while (--len2 >= 0) {
+                       unsigned char c = *++dot;
+                       if (c == '"')
+                               write(fd, "\\", 1);
+                       write(fd, &c, 1);
+               }
+               write(fd, "\"", 1);
+       }
        write(fd, "]\n", 2);
 }
 
@@ -421,8 +482,8 @@ int git_config_set(const char* key, const char* value)
 int git_config_set_multivar(const char* key, const char* value,
        const char* value_regex, int multi_replace)
 {
-       int i;
-       int fd, in_fd;
+       int i, dot;
+       int fd = -1, in_fd;
        int ret;
        char* config_filename = strdup(git_path("config"));
        char* lock_file = strdup(git_path("config.lock"));
@@ -446,16 +507,23 @@ int git_config_set_multivar(const char* key, const char* value,
         * Validate the key and while at it, lower case it for matching.
         */
        store.key = (char*)malloc(strlen(key)+1);
-       for (i = 0; key[i]; i++)
-               if (i != store.baselen &&
-                               ((!isalnum(key[i]) && key[i] != '.') ||
-                                (i == store.baselen+1 && !isalpha(key[i])))) {
-                       fprintf(stderr, "invalid key: %s\n", key);
-                       free(store.key);
-                       ret = 1;
-                       goto out_free;
-               } else
-                       store.key[i] = tolower(key[i]);
+       dot = 0;
+       for (i = 0; key[i]; i++) {
+               unsigned char c = key[i];
+               if (c == '.')
+                       dot = 1;
+               /* Leave the extended basename untouched.. */
+               if (!dot || i > store.baselen) {
+                       if (!isalnum(c) || (i == store.baselen+1 && !isalpha(c))) {
+                               fprintf(stderr, "invalid key: %s\n", key);
+                               free(store.key);
+                               ret = 1;
+                               goto out_free;
+                       }
+                       c = tolower(c);
+               }
+               store.key[i] = c;
+       }
        store.key[i] = 0;
 
        /*
@@ -480,15 +548,11 @@ int git_config_set_multivar(const char* key, const char* value,
                if ( ENOENT != errno ) {
                        error("opening %s: %s", config_filename,
                              strerror(errno));
-                       close(fd);
-                       unlink(lock_file);
                        ret = 3; /* same as "invalid config file" */
                        goto out_free;
                }
                /* if nothing to unset, error out */
                if (value == NULL) {
-                       close(fd);
-                       unlink(lock_file);
                        ret = 5;
                        goto out_free;
                }
@@ -551,8 +615,6 @@ int git_config_set_multivar(const char* key, const char* value,
                /* if nothing to unset, or too many matches, error out */
                if ((store.seen == 0 && value == NULL) ||
                                (store.seen > 1 && multi_replace == 0)) {
-                       close(fd);
-                       unlink(lock_file);
                        ret = 5;
                        goto out_free;
                }
@@ -601,8 +663,6 @@ int git_config_set_multivar(const char* key, const char* value,
                unlink(config_filename);
        }
 
-       close(fd);
-
        if (rename(lock_file, config_filename) < 0) {
                fprintf(stderr, "Could not rename the lock file?\n");
                ret = 4;
@@ -612,10 +672,14 @@ int git_config_set_multivar(const char* key, const char* value,
        ret = 0;
 
 out_free:
+       if (0 <= fd)
+               close(fd);
        if (config_filename)
                free(config_filename);
-       if (lock_file)
+       if (lock_file) {
+               unlink(lock_file);
                free(lock_file);
+       }
        return ret;
 }
 
diff --git a/contrib/remotes2config.sh b/contrib/remotes2config.sh
new file mode 100644 (file)
index 0000000..25901e2
--- /dev/null
@@ -0,0 +1,35 @@
+#!/bin/sh
+
+# Use this tool to rewrite your .git/remotes/ files into the config.
+
+. git-sh-setup
+
+if [ -d "$GIT_DIR"/remotes ]; then
+       echo "Rewriting $GIT_DIR/remotes" >&2
+       error=0
+       # rewrite into config
+       {
+               cd "$GIT_DIR"/remotes
+               ls | while read f; do
+                       name=$(echo -n "$f" | tr -c "A-Za-z0-9" ".")
+                       sed -n \
+                       -e "s/^URL: \(.*\)$/remote.$name.url \1 ./p" \
+                       -e "s/^Pull: \(.*\)$/remote.$name.fetch \1 ^$ /p" \
+                       -e "s/^Push: \(.*\)$/remote.$name.push \1 ^$ /p" \
+                       < "$f"
+               done
+               echo done
+       } | while read key value regex; do
+               case $key in
+               done)
+                       if [ $error = 0 ]; then
+                               mv "$GIT_DIR"/remotes "$GIT_DIR"/remotes.old
+                       fi ;;
+               *)
+                       echo "git-repo-config $key "$value" $regex"
+                       git-repo-config $key "$value" $regex || error=1 ;;
+               esac
+       done
+fi
+
+
index 12aacef5a9c06adec2e7abb7c11051acc954225a..a67d6b479ec57816de1b259f9efed2258e999703 100644 (file)
@@ -321,8 +321,10 @@ int main(int argc, char **argv)
 
        setup_git_directory();
 
-       if (argc != 2 || get_sha1(argv[1], sha1))
+       if (argc != 2)
                usage("git-convert-objects <sha1>");
+       if (get_sha1(argv[1], sha1))
+               die("Not a valid object name %s", argv[1]);
 
        entry = convert_entry(sha1);
        printf("new sha1: %s\n", sha1_to_hex(entry->new_sha1));
diff --git a/delta.h b/delta.h
index 09b2e1eed5dfc772feb38715f051eff43570d4cb..7b3f86d85f71e47d11c40a4abbcd9d9f499a6636 100644 (file)
--- a/delta.h
+++ b/delta.h
@@ -1,11 +1,74 @@
 #ifndef DELTA_H
 #define DELTA_H
 
-/* handling of delta buffers */
-extern void *diff_delta(const void *from_buf, unsigned long from_size,
-                       const void *to_buf, unsigned long to_size,
-                       unsigned long *delta_size, unsigned long max_size);
-extern void *patch_delta(void *src_buf, unsigned long src_size,
+/* opaque object for delta index */
+struct delta_index;
+
+/*
+ * create_delta_index: compute index data from given buffer
+ *
+ * This returns a pointer to a struct delta_index that should be passed to
+ * subsequent create_delta() calls, or to free_delta_index().  A NULL pointer
+ * is returned on failure.  The given buffer must not be freed nor altered
+ * before free_delta_index() is called.  The returned pointer must be freed
+ * using free_delta_index().
+ */
+extern struct delta_index *
+create_delta_index(const void *buf, unsigned long bufsize);
+
+/*
+ * free_delta_index: free the index created by create_delta_index()
+ *
+ * Given pointer must be what create_delta_index() returned, or NULL.
+ */
+extern void free_delta_index(struct delta_index *index);
+
+/*
+ * create_delta: create a delta from given index for the given buffer
+ *
+ * This function may be called multiple times with different buffers using
+ * the same delta_index pointer.  If max_delta_size is non-zero and the
+ * resulting delta is to be larger than max_delta_size then NULL is returned.
+ * On success, a non-NULL pointer to the buffer with the delta data is
+ * returned and *delta_size is updated with its size.  The returned buffer
+ * must be freed by the caller.
+ */
+extern void *
+create_delta(const struct delta_index *index,
+            const void *buf, unsigned long bufsize,
+            unsigned long *delta_size, unsigned long max_delta_size);
+
+/*
+ * diff_delta: create a delta from source buffer to target buffer
+ *
+ * If max_delta_size is non-zero and the resulting delta is to be larger
+ * than max_delta_size then NULL is returned.  On success, a non-NULL
+ * pointer to the buffer with the delta data is returned and *delta_size is
+ * updated with its size.  The returned buffer must be freed by the caller.
+ */
+static inline void *
+diff_delta(const void *src_buf, unsigned long src_bufsize,
+          const void *trg_buf, unsigned long trg_bufsize,
+          unsigned long *delta_size, unsigned long max_delta_size)
+{
+       struct delta_index *index = create_delta_index(src_buf, src_bufsize);
+       if (index) {
+               void *delta = create_delta(index, trg_buf, trg_bufsize,
+                                          delta_size, max_delta_size);
+               free_delta_index(index);
+               return delta;
+       }
+       return NULL;
+}
+
+/*
+ * patch_delta: recreate target buffer given source buffer and delta data
+ *
+ * On success, a non-NULL pointer to the target buffer is returned and
+ * *trg_bufsize is updated with its size.  On failure a NULL pointer is
+ * returned.  The returned buffer must be freed by the caller.
+ */
+extern void *patch_delta(const void *src_buf, unsigned long src_size,
                         const void *delta_buf, unsigned long delta_size,
                         unsigned long *dst_size);
 
@@ -14,7 +77,7 @@ extern void *patch_delta(void *src_buf, unsigned long src_size,
 
 /*
  * This must be called twice on the delta data buffer, first to get the
- * expected reference buffer size, and again to get the result buffer size.
+ * expected source buffer size, and again to get the target buffer size.
  */
 static inline unsigned long get_delta_hdr_size(const unsigned char **datap,
                                               const unsigned char *top)
index ff65742615cb6862d3699e4f301d671a7eadc2e2..8a9cd5d52c555330c512b977179ab030ccd28861 100644 (file)
@@ -105,11 +105,11 @@ static void describe(char *arg, int last_one)
        static int initialized = 0;
        struct commit_name *n;
 
-       if (get_sha1(arg, sha1) < 0)
-               usage(describe_usage);
+       if (get_sha1(arg, sha1))
+               die("Not a valid object name %s", arg);
        cmit = lookup_commit_reference(sha1);
        if (!cmit)
-               usage(describe_usage);
+               die("%s is not a valid '%s' object", arg, commit_type);
 
        if (!initialized) {
                initialized = 1;
index 5bc22047f8715b0b1e628ab5ba93afa68e2ccc9e..25a798d050c6319f3d524c9c605ab70ea35ae7a1 100644 (file)
 
 #include <stdlib.h>
 #include <string.h>
-#include <zlib.h>
 #include "delta.h"
 
 
-/* block size: min = 16, max = 64k, power of 2 */
-#define BLK_SIZE 16
-
-#define MIN(a, b) ((a) < (b) ? (a) : (b))
+/* maximum hash entry list for the same hash bucket */
+#define HASH_LIMIT 64
+
+#define RABIN_SHIFT 23
+#define RABIN_WINDOW 16
+
+static const unsigned int T[256] = {
+       0x00000000, 0xab59b4d1, 0x56b369a2, 0xfdeadd73, 0x063f6795, 0xad66d344,
+       0x508c0e37, 0xfbd5bae6, 0x0c7ecf2a, 0xa7277bfb, 0x5acda688, 0xf1941259,
+       0x0a41a8bf, 0xa1181c6e, 0x5cf2c11d, 0xf7ab75cc, 0x18fd9e54, 0xb3a42a85,
+       0x4e4ef7f6, 0xe5174327, 0x1ec2f9c1, 0xb59b4d10, 0x48719063, 0xe32824b2,
+       0x1483517e, 0xbfdae5af, 0x423038dc, 0xe9698c0d, 0x12bc36eb, 0xb9e5823a,
+       0x440f5f49, 0xef56eb98, 0x31fb3ca8, 0x9aa28879, 0x6748550a, 0xcc11e1db,
+       0x37c45b3d, 0x9c9defec, 0x6177329f, 0xca2e864e, 0x3d85f382, 0x96dc4753,
+       0x6b369a20, 0xc06f2ef1, 0x3bba9417, 0x90e320c6, 0x6d09fdb5, 0xc6504964,
+       0x2906a2fc, 0x825f162d, 0x7fb5cb5e, 0xd4ec7f8f, 0x2f39c569, 0x846071b8,
+       0x798aaccb, 0xd2d3181a, 0x25786dd6, 0x8e21d907, 0x73cb0474, 0xd892b0a5,
+       0x23470a43, 0x881ebe92, 0x75f463e1, 0xdeadd730, 0x63f67950, 0xc8afcd81,
+       0x354510f2, 0x9e1ca423, 0x65c91ec5, 0xce90aa14, 0x337a7767, 0x9823c3b6,
+       0x6f88b67a, 0xc4d102ab, 0x393bdfd8, 0x92626b09, 0x69b7d1ef, 0xc2ee653e,
+       0x3f04b84d, 0x945d0c9c, 0x7b0be704, 0xd05253d5, 0x2db88ea6, 0x86e13a77,
+       0x7d348091, 0xd66d3440, 0x2b87e933, 0x80de5de2, 0x7775282e, 0xdc2c9cff,
+       0x21c6418c, 0x8a9ff55d, 0x714a4fbb, 0xda13fb6a, 0x27f92619, 0x8ca092c8,
+       0x520d45f8, 0xf954f129, 0x04be2c5a, 0xafe7988b, 0x5432226d, 0xff6b96bc,
+       0x02814bcf, 0xa9d8ff1e, 0x5e738ad2, 0xf52a3e03, 0x08c0e370, 0xa39957a1,
+       0x584ced47, 0xf3155996, 0x0eff84e5, 0xa5a63034, 0x4af0dbac, 0xe1a96f7d,
+       0x1c43b20e, 0xb71a06df, 0x4ccfbc39, 0xe79608e8, 0x1a7cd59b, 0xb125614a,
+       0x468e1486, 0xedd7a057, 0x103d7d24, 0xbb64c9f5, 0x40b17313, 0xebe8c7c2,
+       0x16021ab1, 0xbd5bae60, 0x6cb54671, 0xc7ecf2a0, 0x3a062fd3, 0x915f9b02,
+       0x6a8a21e4, 0xc1d39535, 0x3c394846, 0x9760fc97, 0x60cb895b, 0xcb923d8a,
+       0x3678e0f9, 0x9d215428, 0x66f4eece, 0xcdad5a1f, 0x3047876c, 0x9b1e33bd,
+       0x7448d825, 0xdf116cf4, 0x22fbb187, 0x89a20556, 0x7277bfb0, 0xd92e0b61,
+       0x24c4d612, 0x8f9d62c3, 0x7836170f, 0xd36fa3de, 0x2e857ead, 0x85dcca7c,
+       0x7e09709a, 0xd550c44b, 0x28ba1938, 0x83e3ade9, 0x5d4e7ad9, 0xf617ce08,
+       0x0bfd137b, 0xa0a4a7aa, 0x5b711d4c, 0xf028a99d, 0x0dc274ee, 0xa69bc03f,
+       0x5130b5f3, 0xfa690122, 0x0783dc51, 0xacda6880, 0x570fd266, 0xfc5666b7,
+       0x01bcbbc4, 0xaae50f15, 0x45b3e48d, 0xeeea505c, 0x13008d2f, 0xb85939fe,
+       0x438c8318, 0xe8d537c9, 0x153feaba, 0xbe665e6b, 0x49cd2ba7, 0xe2949f76,
+       0x1f7e4205, 0xb427f6d4, 0x4ff24c32, 0xe4abf8e3, 0x19412590, 0xb2189141,
+       0x0f433f21, 0xa41a8bf0, 0x59f05683, 0xf2a9e252, 0x097c58b4, 0xa225ec65,
+       0x5fcf3116, 0xf49685c7, 0x033df00b, 0xa86444da, 0x558e99a9, 0xfed72d78,
+       0x0502979e, 0xae5b234f, 0x53b1fe3c, 0xf8e84aed, 0x17bea175, 0xbce715a4,
+       0x410dc8d7, 0xea547c06, 0x1181c6e0, 0xbad87231, 0x4732af42, 0xec6b1b93,
+       0x1bc06e5f, 0xb099da8e, 0x4d7307fd, 0xe62ab32c, 0x1dff09ca, 0xb6a6bd1b,
+       0x4b4c6068, 0xe015d4b9, 0x3eb80389, 0x95e1b758, 0x680b6a2b, 0xc352defa,
+       0x3887641c, 0x93ded0cd, 0x6e340dbe, 0xc56db96f, 0x32c6cca3, 0x999f7872,
+       0x6475a501, 0xcf2c11d0, 0x34f9ab36, 0x9fa01fe7, 0x624ac294, 0xc9137645,
+       0x26459ddd, 0x8d1c290c, 0x70f6f47f, 0xdbaf40ae, 0x207afa48, 0x8b234e99,
+       0x76c993ea, 0xdd90273b, 0x2a3b52f7, 0x8162e626, 0x7c883b55, 0xd7d18f84,
+       0x2c043562, 0x875d81b3, 0x7ab75cc0, 0xd1eee811
+};
 
-#define GR_PRIME 0x9e370001
-#define HASH(v, shift) (((unsigned int)(v) * GR_PRIME) >> (shift))
+static const unsigned int U[256] = {
+       0x00000000, 0x7eb5200d, 0x5633f4cb, 0x2886d4c6, 0x073e5d47, 0x798b7d4a,
+       0x510da98c, 0x2fb88981, 0x0e7cba8e, 0x70c99a83, 0x584f4e45, 0x26fa6e48,
+       0x0942e7c9, 0x77f7c7c4, 0x5f711302, 0x21c4330f, 0x1cf9751c, 0x624c5511,
+       0x4aca81d7, 0x347fa1da, 0x1bc7285b, 0x65720856, 0x4df4dc90, 0x3341fc9d,
+       0x1285cf92, 0x6c30ef9f, 0x44b63b59, 0x3a031b54, 0x15bb92d5, 0x6b0eb2d8,
+       0x4388661e, 0x3d3d4613, 0x39f2ea38, 0x4747ca35, 0x6fc11ef3, 0x11743efe,
+       0x3eccb77f, 0x40799772, 0x68ff43b4, 0x164a63b9, 0x378e50b6, 0x493b70bb,
+       0x61bda47d, 0x1f088470, 0x30b00df1, 0x4e052dfc, 0x6683f93a, 0x1836d937,
+       0x250b9f24, 0x5bbebf29, 0x73386bef, 0x0d8d4be2, 0x2235c263, 0x5c80e26e,
+       0x740636a8, 0x0ab316a5, 0x2b7725aa, 0x55c205a7, 0x7d44d161, 0x03f1f16c,
+       0x2c4978ed, 0x52fc58e0, 0x7a7a8c26, 0x04cfac2b, 0x73e5d470, 0x0d50f47d,
+       0x25d620bb, 0x5b6300b6, 0x74db8937, 0x0a6ea93a, 0x22e87dfc, 0x5c5d5df1,
+       0x7d996efe, 0x032c4ef3, 0x2baa9a35, 0x551fba38, 0x7aa733b9, 0x041213b4,
+       0x2c94c772, 0x5221e77f, 0x6f1ca16c, 0x11a98161, 0x392f55a7, 0x479a75aa,
+       0x6822fc2b, 0x1697dc26, 0x3e1108e0, 0x40a428ed, 0x61601be2, 0x1fd53bef,
+       0x3753ef29, 0x49e6cf24, 0x665e46a5, 0x18eb66a8, 0x306db26e, 0x4ed89263,
+       0x4a173e48, 0x34a21e45, 0x1c24ca83, 0x6291ea8e, 0x4d29630f, 0x339c4302,
+       0x1b1a97c4, 0x65afb7c9, 0x446b84c6, 0x3adea4cb, 0x1258700d, 0x6ced5000,
+       0x4355d981, 0x3de0f98c, 0x15662d4a, 0x6bd30d47, 0x56ee4b54, 0x285b6b59,
+       0x00ddbf9f, 0x7e689f92, 0x51d01613, 0x2f65361e, 0x07e3e2d8, 0x7956c2d5,
+       0x5892f1da, 0x2627d1d7, 0x0ea10511, 0x7014251c, 0x5facac9d, 0x21198c90,
+       0x099f5856, 0x772a785b, 0x4c921c31, 0x32273c3c, 0x1aa1e8fa, 0x6414c8f7,
+       0x4bac4176, 0x3519617b, 0x1d9fb5bd, 0x632a95b0, 0x42eea6bf, 0x3c5b86b2,
+       0x14dd5274, 0x6a687279, 0x45d0fbf8, 0x3b65dbf5, 0x13e30f33, 0x6d562f3e,
+       0x506b692d, 0x2ede4920, 0x06589de6, 0x78edbdeb, 0x5755346a, 0x29e01467,
+       0x0166c0a1, 0x7fd3e0ac, 0x5e17d3a3, 0x20a2f3ae, 0x08242768, 0x76910765,
+       0x59298ee4, 0x279caee9, 0x0f1a7a2f, 0x71af5a22, 0x7560f609, 0x0bd5d604,
+       0x235302c2, 0x5de622cf, 0x725eab4e, 0x0ceb8b43, 0x246d5f85, 0x5ad87f88,
+       0x7b1c4c87, 0x05a96c8a, 0x2d2fb84c, 0x539a9841, 0x7c2211c0, 0x029731cd,
+       0x2a11e50b, 0x54a4c506, 0x69998315, 0x172ca318, 0x3faa77de, 0x411f57d3,
+       0x6ea7de52, 0x1012fe5f, 0x38942a99, 0x46210a94, 0x67e5399b, 0x19501996,
+       0x31d6cd50, 0x4f63ed5d, 0x60db64dc, 0x1e6e44d1, 0x36e89017, 0x485db01a,
+       0x3f77c841, 0x41c2e84c, 0x69443c8a, 0x17f11c87, 0x38499506, 0x46fcb50b,
+       0x6e7a61cd, 0x10cf41c0, 0x310b72cf, 0x4fbe52c2, 0x67388604, 0x198da609,
+       0x36352f88, 0x48800f85, 0x6006db43, 0x1eb3fb4e, 0x238ebd5d, 0x5d3b9d50,
+       0x75bd4996, 0x0b08699b, 0x24b0e01a, 0x5a05c017, 0x728314d1, 0x0c3634dc,
+       0x2df207d3, 0x534727de, 0x7bc1f318, 0x0574d315, 0x2acc5a94, 0x54797a99,
+       0x7cffae5f, 0x024a8e52, 0x06852279, 0x78300274, 0x50b6d6b2, 0x2e03f6bf,
+       0x01bb7f3e, 0x7f0e5f33, 0x57888bf5, 0x293dabf8, 0x08f998f7, 0x764cb8fa,
+       0x5eca6c3c, 0x207f4c31, 0x0fc7c5b0, 0x7172e5bd, 0x59f4317b, 0x27411176,
+       0x1a7c5765, 0x64c97768, 0x4c4fa3ae, 0x32fa83a3, 0x1d420a22, 0x63f72a2f,
+       0x4b71fee9, 0x35c4dee4, 0x1400edeb, 0x6ab5cde6, 0x42331920, 0x3c86392d,
+       0x133eb0ac, 0x6d8b90a1, 0x450d4467, 0x3bb8646a
+};
 
-struct index {
+struct index_entry {
        const unsigned char *ptr;
        unsigned int val;
-       struct index *next;
+       struct index_entry *next;
+};
+
+struct delta_index {
+       const void *src_buf;
+       unsigned long src_size;
+       unsigned int hash_mask;
+       struct index_entry *hash[0];
 };
 
-static struct index ** delta_index(const unsigned char *buf,
-                                  unsigned long bufsize,
-                                  unsigned long trg_bufsize,
-                                  unsigned int *hash_shift)
+struct delta_index * create_delta_index(const void *buf, unsigned long bufsize)
 {
-       unsigned int i, hsize, hshift, hlimit, entries, *hash_count;
-       const unsigned char *data;
-       struct index *entry, **hash;
+       unsigned int i, hsize, hmask, entries, prev_val, *hash_count;
+       const unsigned char *data, *buffer = buf;
+       struct delta_index *index;
+       struct index_entry *entry, **hash;
        void *mem;
+       unsigned long memsize;
+
+       if (!buf || !bufsize)
+               return NULL;
 
-       /* determine index hash size */
-       entries = bufsize  / BLK_SIZE;
+       /* Determine index hash size.  Note that indexing skips the
+          first byte to allow for optimizing the rabin polynomial
+          initialization in create_delta(). */
+       entries = (bufsize - 1)  / RABIN_WINDOW;
        hsize = entries / 4;
        for (i = 4; (1 << i) < hsize && i < 31; i++);
        hsize = 1 << i;
-       hshift = 32 - i;
-       *hash_shift = hshift;
+       hmask = hsize - 1;
 
        /* allocate lookup index */
-       mem = malloc(hsize * sizeof(*hash) + entries * sizeof(*entry));
+       memsize = sizeof(*index) +
+                 sizeof(*hash) * hsize +
+                 sizeof(*entry) * entries;
+       mem = malloc(memsize);
        if (!mem)
                return NULL;
+       index = mem;
+       mem = index + 1;
        hash = mem;
-       entry = mem + hsize * sizeof(*hash);
+       mem = hash + hsize;
+       entry = mem;
+
+       index->src_buf = buf;
+       index->src_size = bufsize;
+       index->hash_mask = hmask;
        memset(hash, 0, hsize * sizeof(*hash));
 
        /* allocate an array to count hash entries */
        hash_count = calloc(hsize, sizeof(*hash_count));
        if (!hash_count) {
-               free(hash);
+               free(index);
                return NULL;
        }
 
        /* then populate the index */
-       data = buf + entries * BLK_SIZE - BLK_SIZE;
-       while (data >= buf) {
-               unsigned int val = adler32(0, data, BLK_SIZE);
-               i = HASH(val, hshift);
-               entry->ptr = data;
-               entry->val = val;
-               entry->next = hash[i];
-               hash[i] = entry++;
-               hash_count[i]++;
-               data -= BLK_SIZE;
-       }
+       prev_val = ~0;
+       for (data = buffer + entries * RABIN_WINDOW - RABIN_WINDOW;
+            data >= buffer;
+            data -= RABIN_WINDOW) {
+               unsigned int val = 0;
+               for (i = 1; i <= RABIN_WINDOW; i++)
+                       val = ((val << 8) | data[i]) ^ T[val >> RABIN_SHIFT];
+               if (val == prev_val) {
+                       /* keep the lowest of consecutive identical blocks */
+                       entry[-1].ptr = data + RABIN_WINDOW;
+               } else {
+                       prev_val = val;
+                       i = val & hmask;
+                       entry->ptr = data + RABIN_WINDOW;
+                       entry->val = val;
+                       entry->next = hash[i];
+                       hash[i] = entry++;
+                       hash_count[i]++;
+               }
+       }
 
        /*
         * Determine a limit on the number of entries in the same hash
@@ -91,27 +209,18 @@ static struct index ** delta_index(const unsigned char *buf,
         * bucket that would bring us to O(m*n) computing costs (m and n
         * corresponding to reference and target buffer sizes).
         *
-        * The more the target buffer is large, the more it is important to
-        * have small entry lists for each hash buckets.  With such a limit
-        * the cost is bounded to something more like O(m+n).
-        */
-       hlimit = (1 << 26) / trg_bufsize;
-       if (hlimit < 4*BLK_SIZE)
-               hlimit = 4*BLK_SIZE;
-
-       /*
-        * Now make sure none of the hash buckets has more entries than
+        * Make sure none of the hash buckets has more entries than
         * we're willing to test.  Otherwise we cull the entry list
         * uniformly to still preserve a good repartition across
         * the reference buffer.
         */
        for (i = 0; i < hsize; i++) {
-               if (hash_count[i] < hlimit)
+               if (hash_count[i] < HASH_LIMIT)
                        continue;
                entry = hash[i];
                do {
-                       struct index *keep = entry;
-                       int skip = hash_count[i] / hlimit / 2;
+                       struct index_entry *keep = entry;
+                       int skip = hash_count[i] / HASH_LIMIT / 2;
                        do {
                                entry = entry->next;
                        } while(--skip && entry);
@@ -120,32 +229,31 @@ static struct index ** delta_index(const unsigned char *buf,
        }
        free(hash_count);
 
-       return hash;
+       return index;
 }
 
-/* provide the size of the copy opcode given the block offset and size */
-#define COPYOP_SIZE(o, s) \
-    (!!(o & 0xff) + !!(o & 0xff00) + !!(o & 0xff0000) + !!(o & 0xff000000) + \
-     !!(s & 0xff) + !!(s & 0xff00) + 1)
+void free_delta_index(struct delta_index *index)
+{
+       free(index);
+}
 
-/* the maximum size for any opcode */
-#define MAX_OP_SIZE COPYOP_SIZE(0xffffffff, 0xffffffff)
+/*
+ * The maximum size for any opcode sequence, including the initial header
+ * plus rabin window plus biggest copy.
+ */
+#define MAX_OP_SIZE    (5 + 5 + 1 + RABIN_WINDOW + 7)
 
-void *diff_delta(const void *from_buf, unsigned long from_size,
-                const void *to_buf, unsigned long to_size,
-                unsigned long *delta_size,
-                unsigned long max_size)
+void *
+create_delta(const struct delta_index *index,
+            const void *trg_buf, unsigned long trg_size,
+            unsigned long *delta_size, unsigned long max_size)
 {
-       unsigned int i, outpos, outsize, hash_shift;
+       unsigned int i, outpos, outsize, val;
        int inscnt;
        const unsigned char *ref_data, *ref_top, *data, *top;
        unsigned char *out;
-       struct index *entry, **hash;
 
-       if (!from_size || !to_size)
-               return NULL;
-       hash = delta_index(from_buf, from_size, to_size, &hash_shift);
-       if (!hash)
+       if (!trg_buf || !trg_size)
                return NULL;
 
        outpos = 0;
@@ -153,64 +261,66 @@ void *diff_delta(const void *from_buf, unsigned long from_size,
        if (max_size && outsize >= max_size)
                outsize = max_size + MAX_OP_SIZE + 1;
        out = malloc(outsize);
-       if (!out) {
-               free(hash);
+       if (!out)
                return NULL;
-       }
-
-       ref_data = from_buf;
-       ref_top = from_buf + from_size;
-       data = to_buf;
-       top = to_buf + to_size;
 
        /* store reference buffer size */
-       out[outpos++] = from_size;
-       from_size >>= 7;
-       while (from_size) {
-               out[outpos - 1] |= 0x80;
-               out[outpos++] = from_size;
-               from_size >>= 7;
+       i = index->src_size;
+       while (i >= 0x80) {
+               out[outpos++] = i | 0x80;
+               i >>= 7;
        }
+       out[outpos++] = i;
 
        /* store target buffer size */
-       out[outpos++] = to_size;
-       to_size >>= 7;
-       while (to_size) {
-               out[outpos - 1] |= 0x80;
-               out[outpos++] = to_size;
-               to_size >>= 7;
+       i = trg_size;
+       while (i >= 0x80) {
+               out[outpos++] = i | 0x80;
+               i >>= 7;
        }
-
-       inscnt = 0;
+       out[outpos++] = i;
+
+       ref_data = index->src_buf;
+       ref_top = ref_data + index->src_size;
+       data = trg_buf;
+       top = trg_buf + trg_size;
+
+       outpos++;
+       val = 0;
+       for (i = 0; i < RABIN_WINDOW && data < top; i++, data++) {
+               out[outpos++] = *data;
+               val = ((val << 8) | *data) ^ T[val >> RABIN_SHIFT];
+       }
+       inscnt = i;
 
        while (data < top) {
                unsigned int moff = 0, msize = 0;
-               if (data + BLK_SIZE <= top) {
-                       unsigned int val = adler32(0, data, BLK_SIZE);
-                       i = HASH(val, hash_shift);
-                       for (entry = hash[i]; entry; entry = entry->next) {
-                               const unsigned char *ref = entry->ptr;
-                               const unsigned char *src = data;
-                               unsigned int ref_size = ref_top - ref;
-                               if (entry->val != val)
-                                       continue;
-                               if (ref_size > top - src)
-                                       ref_size = top - src;
-                               if (ref_size > 0x10000)
-                                       ref_size = 0x10000;
-                               if (ref_size <= msize)
-                                       break;
-                               while (ref_size-- && *src++ == *ref)
-                                       ref++;
-                               if (msize < ref - entry->ptr) {
-                                       /* this is our best match so far */
-                                       msize = ref - entry->ptr;
-                                       moff = entry->ptr - ref_data;
-                               }
+               struct index_entry *entry;
+               val ^= U[data[-RABIN_WINDOW]];
+               val = ((val << 8) | *data) ^ T[val >> RABIN_SHIFT];
+               i = val & index->hash_mask;
+               for (entry = index->hash[i]; entry; entry = entry->next) {
+                       const unsigned char *ref = entry->ptr;
+                       const unsigned char *src = data;
+                       unsigned int ref_size = ref_top - ref;
+                       if (entry->val != val)
+                               continue;
+                       if (ref_size > top - src)
+                               ref_size = top - src;
+                       if (ref_size > 0x10000)
+                               ref_size = 0x10000;
+                       if (ref_size <= msize)
+                               break;
+                       while (ref_size-- && *src++ == *ref)
+                               ref++;
+                       if (msize < ref - entry->ptr) {
+                               /* this is our best match so far */
+                               msize = ref - entry->ptr;
+                               moff = entry->ptr - ref_data;
                        }
                }
 
-               if (!msize || msize < COPYOP_SIZE(moff, msize)) {
+               if (msize < 4) {
                        if (!inscnt)
                                outpos++;
                        out[outpos++] = *data++;
@@ -222,6 +332,20 @@ void *diff_delta(const void *from_buf, unsigned long from_size,
                } else {
                        unsigned char *op;
 
+                       if (msize >= RABIN_WINDOW) {
+                               const unsigned char *sk;
+                               sk = data + msize - RABIN_WINDOW;
+                               val = 0;
+                               for (i = 0; i < RABIN_WINDOW; i++)
+                                       val = ((val << 8) | *sk++) ^ T[val >> RABIN_SHIFT];
+                       } else {
+                               const unsigned char *sk = data + 1;
+                               for (i = 1; i < msize; i++) {
+                                       val ^= U[sk[-RABIN_WINDOW]];
+                                       val = ((val << 8) | *sk++) ^ T[val >> RABIN_SHIFT];
+                               }
+                       }
+
                        if (inscnt) {
                                while (moff && ref_data[moff-1] == data[-1]) {
                                        if (msize == 0x10000)
@@ -266,12 +390,10 @@ void *diff_delta(const void *from_buf, unsigned long from_size,
                        if (max_size && outsize >= max_size)
                                outsize = max_size + MAX_OP_SIZE + 1;
                        if (max_size && outpos > max_size)
-                               out = NULL;
-                       else
-                               out = realloc(out, outsize);
+                               break;
+                       out = realloc(out, outsize);
                        if (!out) {
                                free(tmp);
-                               free(hash);
                                return NULL;
                        }
                }
@@ -280,7 +402,11 @@ void *diff_delta(const void *from_buf, unsigned long from_size,
        if (inscnt)
                out[outpos - inscnt - 1] = inscnt;
 
-       free(hash);
+       if (max_size && outpos > max_size) {
+               free(out);
+               return NULL;
+       }
+
        *delta_size = outpos;
        return out;
 }
index 7207867a74d0869c6a6b839c040321c843ee9c2f..69bb74b3100d598c938fa01f1111deb85abcfac0 100644 (file)
@@ -138,7 +138,10 @@ int main(int argc, const char **argv)
                opt->diffopt.setup |= (DIFF_SETUP_USE_SIZE_CACHE |
                                       DIFF_SETUP_USE_CACHE);
        while (fgets(line, sizeof(line), stdin))
-               diff_tree_stdin(line);
+               if (line[0] == '\n')
+                       fflush(stdout);
+               else
+                       diff_tree_stdin(line);
 
        return 0;
 }
diff --git a/diff.c b/diff.c
index c845c871130a8943c3c5f5d46cfd52426180fc8b..af5db0ec12817a259c8c4f4c1482aa90ace03f17 100644 (file)
--- a/diff.c
+++ b/diff.c
@@ -8,6 +8,7 @@
 #include "quote.h"
 #include "diff.h"
 #include "diffcore.h"
+#include "delta.h"
 #include "xdiff-interface.h"
 
 static int use_size_cache;
@@ -231,11 +232,16 @@ static char *pprint_rename(const char *a, const char *b)
         * name-a => name-b
         */
        if (pfx_length + sfx_length) {
+               int a_midlen = len_a - pfx_length - sfx_length;
+               int b_midlen = len_b - pfx_length - sfx_length;
+               if (a_midlen < 0) a_midlen = 0;
+               if (b_midlen < 0) b_midlen = 0;
+
                name = xmalloc(len_a + len_b - pfx_length - sfx_length + 7);
                sprintf(name, "%.*s{%.*s => %.*s}%s",
                        pfx_length, a,
-                       len_a - pfx_length - sfx_length, a + pfx_length,
-                       len_b - pfx_length - sfx_length, b + pfx_length,
+                       a_midlen, a + pfx_length,
+                       b_midlen, b + pfx_length,
                        a + len_a - sfx_length);
        }
        else {
@@ -296,7 +302,6 @@ static const char minuses[]= "--------------------------------------------------
 
 static void show_stats(struct diffstat_t* data)
 {
-       char *prefix = "";
        int i, len, add, del, total, adds = 0, dels = 0;
        int max, max_change = 0, max_len = 0;
        int total_files = data->nr;
@@ -318,6 +323,7 @@ static void show_stats(struct diffstat_t* data)
        }
 
        for (i = 0; i < data->nr; i++) {
+               char *prefix = "";
                char *name = data->files[i]->name;
                int added = data->files[i]->added;
                int deleted = data->files[i]->deleted;
@@ -391,6 +397,130 @@ static void show_stats(struct diffstat_t* data)
                        total_files, adds, dels);
 }
 
+struct checkdiff_t {
+       struct xdiff_emit_state xm;
+       const char *filename;
+       int lineno;
+};
+
+static void checkdiff_consume(void *priv, char *line, unsigned long len)
+{
+       struct checkdiff_t *data = priv;
+
+       if (line[0] == '+') {
+               int i, spaces = 0;
+
+               data->lineno++;
+
+               /* check space before tab */
+               for (i = 1; i < len && (line[i] == ' ' || line[i] == '\t'); i++)
+                       if (line[i] == ' ')
+                               spaces++;
+               if (line[i - 1] == '\t' && spaces)
+                       printf("%s:%d: space before tab:%.*s\n",
+                               data->filename, data->lineno, (int)len, line);
+
+               /* check white space at line end */
+               if (line[len - 1] == '\n')
+                       len--;
+               if (isspace(line[len - 1]))
+                       printf("%s:%d: white space at end: %.*s\n",
+                               data->filename, data->lineno, (int)len, line);
+       } else if (line[0] == ' ')
+               data->lineno++;
+       else if (line[0] == '@') {
+               char *plus = strchr(line, '+');
+               if (plus)
+                       data->lineno = strtol(plus, line + len, 10);
+               else
+                       die("invalid diff");
+       }
+}
+
+static unsigned char *deflate_it(char *data,
+                                unsigned long size,
+                                unsigned long *result_size)
+{
+       int bound;
+       unsigned char *deflated;
+       z_stream stream;
+
+       memset(&stream, 0, sizeof(stream));
+       deflateInit(&stream, Z_BEST_COMPRESSION);
+       bound = deflateBound(&stream, size);
+       deflated = xmalloc(bound);
+       stream.next_out = deflated;
+       stream.avail_out = bound;
+
+       stream.next_in = (unsigned char *)data;
+       stream.avail_in = size;
+       while (deflate(&stream, Z_FINISH) == Z_OK)
+               ; /* nothing */
+       deflateEnd(&stream);
+       *result_size = stream.total_out;
+       return deflated;
+}
+
+static void emit_binary_diff(mmfile_t *one, mmfile_t *two)
+{
+       void *cp;
+       void *delta;
+       void *deflated;
+       void *data;
+       unsigned long orig_size;
+       unsigned long delta_size;
+       unsigned long deflate_size;
+       unsigned long data_size;
+
+       printf("GIT binary patch\n");
+       /* We could do deflated delta, or we could do just deflated two,
+        * whichever is smaller.
+        */
+       delta = NULL;
+       deflated = deflate_it(two->ptr, two->size, &deflate_size);
+       if (one->size && two->size) {
+               delta = diff_delta(one->ptr, one->size,
+                                  two->ptr, two->size,
+                                  &delta_size, deflate_size);
+               if (delta) {
+                       void *to_free = delta;
+                       orig_size = delta_size;
+                       delta = deflate_it(delta, delta_size, &delta_size);
+                       free(to_free);
+               }
+       }
+
+       if (delta && delta_size < deflate_size) {
+               printf("delta %lu\n", orig_size);
+               free(deflated);
+               data = delta;
+               data_size = delta_size;
+       }
+       else {
+               printf("literal %lu\n", two->size);
+               free(delta);
+               data = deflated;
+               data_size = deflate_size;
+       }
+
+       /* emit data encoded in base85 */
+       cp = data;
+       while (data_size) {
+               int bytes = (52 < data_size) ? 52 : data_size;
+               char line[70];
+               data_size -= bytes;
+               if (bytes <= 26)
+                       line[0] = bytes + 'A' - 1;
+               else
+                       line[0] = bytes - 26 + 'a' - 1;
+               encode_85(line + 1, cp, bytes);
+               cp += bytes;
+               puts(line);
+       }
+       printf("\n");
+       free(data);
+}
+
 #define FIRST_FEW_BYTES 8000
 static int mmfile_is_binary(mmfile_t *mf)
 {
@@ -407,6 +537,7 @@ static void builtin_diff(const char *name_a,
                         struct diff_filespec *one,
                         struct diff_filespec *two,
                         const char *xfrm_msg,
+                        struct diff_options *o,
                         int complete_rewrite)
 {
        mmfile_t mf1, mf2;
@@ -451,8 +582,17 @@ static void builtin_diff(const char *name_a,
        if (fill_mmfile(&mf1, one) < 0 || fill_mmfile(&mf2, two) < 0)
                die("unable to read files to diff");
 
-       if (mmfile_is_binary(&mf1) || mmfile_is_binary(&mf2))
-               printf("Binary files %s and %s differ\n", lbl[0], lbl[1]);
+       if (mmfile_is_binary(&mf1) || mmfile_is_binary(&mf2)) {
+               /* Quite common confusing case */
+               if (mf1.size == mf2.size &&
+                   !memcmp(mf1.ptr, mf2.ptr, mf1.size))
+                       goto free_ab_and_return;
+               if (o->binary)
+                       emit_binary_diff(&mf1, &mf2);
+               else
+                       printf("Binary files %s and %s differ\n",
+                              lbl[0], lbl[1]);
+       }
        else {
                /* Crazy xdl interfaces.. */
                const char *diffopts = getenv("GIT_DIFF_OPTS");
@@ -463,7 +603,7 @@ static void builtin_diff(const char *name_a,
 
                ecbdata.label_path = lbl;
                xpp.flags = XDF_NEED_MINIMAL;
-               xecfg.ctxlen = 3;
+               xecfg.ctxlen = o->context;
                xecfg.flags = XDL_EMIT_FUNCNAMES;
                if (!diffopts)
                        ;
@@ -524,6 +664,41 @@ static void builtin_diffstat(const char *name_a, const char *name_b,
        }
 }
 
+static void builtin_checkdiff(const char *name_a, const char *name_b,
+                            struct diff_filespec *one,
+                            struct diff_filespec *two)
+{
+       mmfile_t mf1, mf2;
+       struct checkdiff_t data;
+
+       if (!two)
+               return;
+
+       memset(&data, 0, sizeof(data));
+       data.xm.consume = checkdiff_consume;
+       data.filename = name_b ? name_b : name_a;
+       data.lineno = 0;
+
+       if (fill_mmfile(&mf1, one) < 0 || fill_mmfile(&mf2, two) < 0)
+               die("unable to read files to diff");
+
+       if (mmfile_is_binary(&mf2))
+               return;
+       else {
+               /* Crazy xdl interfaces.. */
+               xpparam_t xpp;
+               xdemitconf_t xecfg;
+               xdemitcb_t ecb;
+
+               xpp.flags = XDF_NEED_MINIMAL;
+               xecfg.ctxlen = 0;
+               xecfg.flags = 0;
+               ecb.outf = xdiff_outf;
+               ecb.priv = &data;
+               xdl_diff(&mf1, &mf2, &xpp, &xecfg, &ecb);
+       }
+}
+
 struct diff_filespec *alloc_filespec(const char *path)
 {
        int namelen = strlen(path);
@@ -928,6 +1103,7 @@ static void run_diff_cmd(const char *pgm,
                         struct diff_filespec *one,
                         struct diff_filespec *two,
                         const char *xfrm_msg,
+                        struct diff_options *o,
                         int complete_rewrite)
 {
        if (pgm) {
@@ -937,7 +1113,7 @@ static void run_diff_cmd(const char *pgm,
        }
        if (one && two)
                builtin_diff(name, other ? other : name,
-                            one, two, xfrm_msg, complete_rewrite);
+                            one, two, xfrm_msg, o, complete_rewrite);
        else
                printf("* Unmerged path %s\n", name);
 }
@@ -971,7 +1147,7 @@ static void run_diff(struct diff_filepair *p, struct diff_options *o)
 
        if (DIFF_PAIR_UNMERGED(p)) {
                /* unmerged */
-               run_diff_cmd(pgm, p->one->path, NULL, NULL, NULL, NULL, 0);
+               run_diff_cmd(pgm, p->one->path, NULL, NULL, NULL, NULL, o, 0);
                return;
        }
 
@@ -1041,14 +1217,14 @@ static void run_diff(struct diff_filepair *p, struct diff_options *o)
                 * needs to be split into deletion and creation.
                 */
                struct diff_filespec *null = alloc_filespec(two->path);
-               run_diff_cmd(NULL, name, other, one, null, xfrm_msg, 0);
+               run_diff_cmd(NULL, name, other, one, null, xfrm_msg, o, 0);
                free(null);
                null = alloc_filespec(one->path);
-               run_diff_cmd(NULL, name, other, null, two, xfrm_msg, 0);
+               run_diff_cmd(NULL, name, other, null, two, xfrm_msg, o, 0);
                free(null);
        }
        else
-               run_diff_cmd(pgm, name, other, one, two, xfrm_msg,
+               run_diff_cmd(pgm, name, other, one, two, xfrm_msg, o,
                             complete_rewrite);
 
        free(name_munged);
@@ -1079,6 +1255,25 @@ static void run_diffstat(struct diff_filepair *p, struct diff_options *o,
        builtin_diffstat(name, other, p->one, p->two, diffstat, complete_rewrite);
 }
 
+static void run_checkdiff(struct diff_filepair *p, struct diff_options *o)
+{
+       const char *name;
+       const char *other;
+
+       if (DIFF_PAIR_UNMERGED(p)) {
+               /* unmerged */
+               return;
+       }
+
+       name = p->one->path;
+       other = (strcmp(name, p->two->path) ? p->two->path : NULL);
+
+       diff_fill_sha1_info(p->one);
+       diff_fill_sha1_info(p->two);
+
+       builtin_checkdiff(name, other, p->one, p->two);
+}
+
 void diff_setup(struct diff_options *options)
 {
        memset(options, 0, sizeof(*options));
@@ -1086,6 +1281,7 @@ void diff_setup(struct diff_options *options)
        options->line_termination = '\n';
        options->break_opt = -1;
        options->rename_limit = -1;
+       options->context = 3;
 
        options->change = diff_change;
        options->add_remove = diff_addremove;
@@ -1103,7 +1299,8 @@ int diff_setup_done(struct diff_options *options)
         * recursive bits for other formats here.
         */
        if ((options->output_format == DIFF_FORMAT_PATCH) ||
-           (options->output_format == DIFF_FORMAT_DIFFSTAT))
+           (options->output_format == DIFF_FORMAT_DIFFSTAT) ||
+           (options->output_format == DIFF_FORMAT_CHECKDIFF))
                options->recursive = 1;
 
        if (options->detect_rename && options->rename_limit < 0)
@@ -1126,17 +1323,70 @@ int diff_setup_done(struct diff_options *options)
        return 0;
 }
 
+int opt_arg(const char *arg, int arg_short, const char *arg_long, int *val)
+{
+       char c, *eq;
+       int len;
+
+       if (*arg != '-')
+               return 0;
+       c = *++arg;
+       if (!c)
+               return 0;
+       if (c == arg_short) {
+               c = *++arg;
+               if (!c)
+                       return 1;
+               if (val && isdigit(c)) {
+                       char *end;
+                       int n = strtoul(arg, &end, 10);
+                       if (*end)
+                               return 0;
+                       *val = n;
+                       return 1;
+               }
+               return 0;
+       }
+       if (c != '-')
+               return 0;
+       arg++;
+       eq = strchr(arg, '=');
+       if (eq)
+               len = eq - arg;
+       else
+               len = strlen(arg);
+       if (!len || strncmp(arg, arg_long, len))
+               return 0;
+       if (eq) {
+               int n;
+               char *end;
+               if (!isdigit(*++eq))
+                       return 0;
+               n = strtoul(eq, &end, 10);
+               if (*end)
+                       return 0;
+               *val = n;
+       }
+       return 1;
+}
+
 int diff_opt_parse(struct diff_options *options, const char **av, int ac)
 {
        const char *arg = av[0];
        if (!strcmp(arg, "-p") || !strcmp(arg, "-u"))
                options->output_format = DIFF_FORMAT_PATCH;
+       else if (opt_arg(arg, 'U', "unified", &options->context))
+               options->output_format = DIFF_FORMAT_PATCH;
        else if (!strcmp(arg, "--patch-with-raw")) {
                options->output_format = DIFF_FORMAT_PATCH;
                options->with_raw = 1;
        }
        else if (!strcmp(arg, "--stat"))
                options->output_format = DIFF_FORMAT_DIFFSTAT;
+       else if (!strcmp(arg, "--check"))
+               options->output_format = DIFF_FORMAT_CHECKDIFF;
+       else if (!strcmp(arg, "--summary"))
+               options->summary = 1;
        else if (!strcmp(arg, "--patch-with-stat")) {
                options->output_format = DIFF_FORMAT_PATCH;
                options->with_stat = 1;
@@ -1147,6 +1397,10 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
                options->rename_limit = strtoul(arg+2, NULL, 10);
        else if (!strcmp(arg, "--full-index"))
                options->full_index = 1;
+       else if (!strcmp(arg, "--binary")) {
+               options->output_format = DIFF_FORMAT_PATCH;
+               options->full_index = options->binary = 1;
+       }
        else if (!strcmp(arg, "--name-only"))
                options->output_format = DIFF_FORMAT_NAME;
        else if (!strcmp(arg, "--name-status"))
@@ -1453,6 +1707,19 @@ static void diff_flush_stat(struct diff_filepair *p, struct diff_options *o,
        run_diffstat(p, o, diffstat);
 }
 
+static void diff_flush_checkdiff(struct diff_filepair *p,
+               struct diff_options *o)
+{
+       if (diff_unmodified_pair(p))
+               return;
+
+       if ((DIFF_FILE_VALID(p->one) && S_ISDIR(p->one->mode)) ||
+           (DIFF_FILE_VALID(p->two) && S_ISDIR(p->two->mode)))
+               return; /* no tree diffs in patch format */
+
+       run_checkdiff(p, o);
+}
+
 int diff_queue_is_empty(void)
 {
        struct diff_queue_struct *q = &diff_queued_diff;
@@ -1583,6 +1850,9 @@ static void flush_one_pair(struct diff_filepair *p,
                case DIFF_FORMAT_DIFFSTAT:
                        diff_flush_stat(p, options, diffstat);
                        break;
+               case DIFF_FORMAT_CHECKDIFF:
+                       diff_flush_checkdiff(p, options);
+                       break;
                case DIFF_FORMAT_PATCH:
                        diff_flush_patch(p, options);
                        break;
@@ -1603,6 +1873,85 @@ static void flush_one_pair(struct diff_filepair *p,
        }
 }
 
+static void show_file_mode_name(const char *newdelete, struct diff_filespec *fs)
+{
+       if (fs->mode)
+               printf(" %s mode %06o %s\n", newdelete, fs->mode, fs->path);
+       else
+               printf(" %s %s\n", newdelete, fs->path);
+}
+
+
+static void show_mode_change(struct diff_filepair *p, int show_name)
+{
+       if (p->one->mode && p->two->mode && p->one->mode != p->two->mode) {
+               if (show_name)
+                       printf(" mode change %06o => %06o %s\n",
+                              p->one->mode, p->two->mode, p->two->path);
+               else
+                       printf(" mode change %06o => %06o\n",
+                              p->one->mode, p->two->mode);
+       }
+}
+
+static void show_rename_copy(const char *renamecopy, struct diff_filepair *p)
+{
+       const char *old, *new;
+
+       /* Find common prefix */
+       old = p->one->path;
+       new = p->two->path;
+       while (1) {
+               const char *slash_old, *slash_new;
+               slash_old = strchr(old, '/');
+               slash_new = strchr(new, '/');
+               if (!slash_old ||
+                   !slash_new ||
+                   slash_old - old != slash_new - new ||
+                   memcmp(old, new, slash_new - new))
+                       break;
+               old = slash_old + 1;
+               new = slash_new + 1;
+       }
+       /* p->one->path thru old is the common prefix, and old and new
+        * through the end of names are renames
+        */
+       if (old != p->one->path)
+               printf(" %s %.*s{%s => %s} (%d%%)\n", renamecopy,
+                      (int)(old - p->one->path), p->one->path,
+                      old, new, (int)(0.5 + p->score * 100.0/MAX_SCORE));
+       else
+               printf(" %s %s => %s (%d%%)\n", renamecopy,
+                      p->one->path, p->two->path,
+                      (int)(0.5 + p->score * 100.0/MAX_SCORE));
+       show_mode_change(p, 0);
+}
+
+static void diff_summary(struct diff_filepair *p)
+{
+       switch(p->status) {
+       case DIFF_STATUS_DELETED:
+               show_file_mode_name("delete", p->one);
+               break;
+       case DIFF_STATUS_ADDED:
+               show_file_mode_name("create", p->two);
+               break;
+       case DIFF_STATUS_COPIED:
+               show_rename_copy("copy", p);
+               break;
+       case DIFF_STATUS_RENAMED:
+               show_rename_copy("rename", p);
+               break;
+       default:
+               if (p->score) {
+                       printf(" rewrite %s (%d%%)\n", p->two->path,
+                               (int)(0.5 + p->score * 100.0/MAX_SCORE));
+                       show_mode_change(p, 0);
+               } else  show_mode_change(p, 1);
+               break;
+       }
+}
+
 void diff_flush(struct diff_options *options)
 {
        struct diff_queue_struct *q = &diff_queued_diff;
@@ -1636,7 +1985,6 @@ void diff_flush(struct diff_options *options)
        for (i = 0; i < q->nr; i++) {
                struct diff_filepair *p = q->queue[i];
                flush_one_pair(p, diff_output_format, options, diffstat);
-               diff_free_filepair(p);
        }
 
        if (diffstat) {
@@ -1644,6 +1992,12 @@ void diff_flush(struct diff_options *options)
                free(diffstat);
        }
 
+       for (i = 0; i < q->nr; i++) {
+               if (options->summary)
+                       diff_summary(q->queue[i]);
+               diff_free_filepair(q->queue[i]);
+       }
+
        free(q->queue);
        q->queue = NULL;
        q->nr = q->alloc = 0;
diff --git a/diff.h b/diff.h
index b3b2c4dd28c4f1a8f14948e5d1262dd71f1e96cf..c672277df25a6855e09e642cdf6341841b4dd5a3 100644 (file)
--- a/diff.h
+++ b/diff.h
@@ -28,9 +28,12 @@ struct diff_options {
                 with_raw:1,
                 with_stat:1,
                 tree_in_recursive:1,
+                binary:1,
                 full_index:1,
                 silent_on_remove:1,
-                find_copies_harder:1;
+                find_copies_harder:1,
+                summary:1;
+       int context;
        int break_opt;
        int detect_rename;
        int line_termination;
@@ -150,6 +153,7 @@ extern int diff_queue_is_empty(void);
 #define DIFF_FORMAT_NAME       4
 #define DIFF_FORMAT_NAME_STATUS        5
 #define DIFF_FORMAT_DIFFSTAT   6
+#define DIFF_FORMAT_CHECKDIFF  7
 
 extern void diff_flush(struct diff_options*);
 
index 507ae4dcb9964e63143661392d7a10d7da4ef33e..97ec2d0c7db521047e254e53120ffc83829868a9 100755 (executable)
--- a/git-am.sh
+++ b/git-am.sh
@@ -15,6 +15,10 @@ stop_here () {
 }
 
 stop_here_user_resolve () {
+    if [ -n "$resolvemsg" ]; then
+           echo "$resolvemsg"
+           stop_here $1
+    fi
     cmdline=$(basename $0)
     if test '' != "$interactive"
     then
@@ -55,46 +59,12 @@ fall_back_3way () {
        GIT_INDEX_FILE="$dotest/patch-merge-tmp-index" \
        git-write-tree >"$dotest/patch-merge-base+" &&
        # index has the base tree now.
-       (
-           cd "$dotest/patch-merge-tmp-dir" &&
-           GIT_INDEX_FILE="../patch-merge-tmp-index" \
-           GIT_OBJECT_DIRECTORY="$O_OBJECT" \
-           git-apply $binary --index <../patch
-        )
+       GIT_INDEX_FILE="$dotest/patch-merge-tmp-index" \
+       git-apply $binary --cached <"$dotest/patch"
     then
        echo Using index info to reconstruct a base tree...
        mv "$dotest/patch-merge-base+" "$dotest/patch-merge-base"
        mv "$dotest/patch-merge-tmp-index" "$dotest/patch-merge-index"
-    else
-       # Otherwise, try nearby trees that can be used to apply the
-       # patch.
-       (
-           N=10
-
-           # Hoping the patch is against our recent commits...
-           git-rev-list --max-count=$N HEAD
-
-           # or hoping the patch is against known tags...
-           git-ls-remote --tags .
-       ) |
-       while read base junk
-       do
-           # See if we have it as a tree...
-           git-cat-file tree "$base" >/dev/null 2>&1 || continue
-
-           rm -fr "$dotest"/patch-merge-* &&
-           mkdir "$dotest/patch-merge-tmp-dir" || break
-           (
-               cd "$dotest/patch-merge-tmp-dir" &&
-               GIT_INDEX_FILE=../patch-merge-tmp-index &&
-               GIT_OBJECT_DIRECTORY="$O_OBJECT" &&
-               export GIT_INDEX_FILE GIT_OBJECT_DIRECTORY &&
-               git-read-tree "$base" &&
-               git-apply $binary --index &&
-               mv ../patch-merge-tmp-index ../patch-merge-index &&
-               echo "$base" >../patch-merge-base
-           ) <"$dotest/patch"  2>/dev/null && break
-       done
     fi
 
     test -f "$dotest/patch-merge-index" &&
@@ -121,7 +91,7 @@ fall_back_3way () {
 }
 
 prec=4
-dotest=.dotest sign= utf8= keep= skip= interactive= resolved= binary= ws=
+dotest=.dotest sign= utf8= keep= skip= interactive= resolved= binary= ws= resolvemsg=
 
 while case "$#" in 0) break;; esac
 do
@@ -157,6 +127,9 @@ do
        --whitespace=*)
        ws=$1; shift ;;
 
+       --resolvemsg=*)
+       resolvemsg=$(echo "$1" | sed -e "s/^--resolvemsg=//"); shift ;;
+
        --)
        shift; break ;;
        -*)
@@ -185,7 +158,7 @@ then
 else
        # Make sure we are not given --skip nor --resolved
        test ",$skip,$resolved," = ,,, ||
-               die "we are not resuming."
+               die "Resolve operation not in progress, we are not resuming."
 
        # Start afresh.
        mkdir -p "$dotest" || exit
index ebcc8989d8cfd9d64f0e4cacd0a0ff76f50d1345..134e68cf7f0389d73af000c4303c4dda27f89d57 100755 (executable)
@@ -82,8 +82,7 @@ done
 
 case "$#" in
 0)
-       git-rev-parse --symbolic --all |
-       sed -ne 's|^refs/heads/||p' |
+       git-rev-parse --symbolic --branches |
        sort |
        while read ref
        do
index 463ed2eaff906edaeb0f6d3f8138798e373c6495..a11c939c30f46561adb8179570d825a85fb8b57b 100755 (executable)
@@ -144,7 +144,7 @@ else
        work=`git write-tree` &&
        git read-tree --reset $new &&
        git checkout-index -f -u -q -a &&
-       git read-tree -m -u $old $new $work || exit
+       git read-tree -m -u --aggressive $old $new $work || exit
 
        if result=`git write-tree 2>/dev/null`
        then
index b200868e605f27c22252de5bc14a62dfef60ea18..bb56264e046c906c529c712b36db239dd7ba99e9 100755 (executable)
@@ -3,13 +3,15 @@
 # Copyright (c) 2005-2006 Pavel Roskin
 #
 
-USAGE="[-d] [-n] [-q] [-x | -X]"
+USAGE="[-d] [-n] [-q] [-x | -X] [--] <paths>..."
 LONG_USAGE='Clean untracked files from the working directory
        -d      remove directories as well
        -n      don'\''t remove anything, just show what would be done
        -q      be quiet, only report errors
        -x      remove ignored files as well
-       -X      remove only ignored files as well'
+       -X      remove only ignored files
+When optional <paths>... arguments are given, the paths
+affected are further limited to those that match them.'
 SUBDIRECTORY_OK=Yes
 . git-sh-setup
 
@@ -44,8 +46,15 @@ do
        -X)
                ignoredonly=1
                ;;
-       *)
+       --)
+               shift
+               break
+               ;;
+       -*)
                usage
+               ;;
+       *)
+               break
        esac
        shift
 done
@@ -64,7 +73,7 @@ if [ -z "$ignored" ]; then
        fi
 fi
 
-git-ls-files --others --directory $excl ${excl_info:+"$excl_info"} |
+git-ls-files --others --directory $excl ${excl_info:+"$excl_info"} -- "$@" |
 while read -r file; do
        if [ -d "$file" -a ! -L "$file" ]; then
                if [ -z "$cleandir" ]; then
index 0805168057c871549d87ff4e9e30d654abbed0a4..227245c865e3f33e3b795868c484a41d590c553a 100755 (executable)
@@ -261,11 +261,7 @@ yes,yes)
            ;;
        yes)
            mkdir -p "$GIT_DIR/objects/info"
-           {
-               test -f "$repo/objects/info/alternates" &&
-               cat "$repo/objects/info/alternates";
-               echo "$repo/objects"
-           } >"$GIT_DIR/objects/info/alternates"
+           echo "$repo/objects" >> "$GIT_DIR/objects/info/alternates"
            ;;
        esac
        git-ls-remote "$repo" >"$GIT_DIR/CLONE_HEAD"
index 26cd7ca54de2e0b4802546d2611cd379694ec005..6ef1a9dedc89af10865ed114458df88617bb5ca9 100755 (executable)
@@ -640,6 +640,8 @@ case "$no_edit" in
                exit 1
                ;;
        esac
+       git-var GIT_AUTHOR_IDENT > /dev/null  || die
+       git-var GIT_COMMITTER_IDENT > /dev/null  || die
        ${VISUAL:-${EDITOR:-vi}} "$GIT_DIR/COMMIT_EDITMSG"
        ;;
 esac
index 7b3a3d323baeb2babd51f3a653e63a7a71aa48eb..f994443c6fa16257b9b6a44abfc999d2ed25e601 100755 (executable)
@@ -10,9 +10,9 @@
     die "GIT_DIR is not defined or is unreadable";
 }
 
-our ($opt_h, $opt_p, $opt_v, $opt_c );
+our ($opt_h, $opt_p, $opt_v, $opt_c, $opt_f, $opt_m );
 
-getopts('hpvc');
+getopts('hpvcfm:');
 
 $opt_h && usage();
 
 $opt_v && print "Applying to CVS commit $commit from parent $parent\n";
 
 # grab the commit message
-`git-cat-file commit $commit | sed -e '1,/^\$/d' > .msg`;
+open(MSG, ">.msg") or die "Cannot open .msg for writing";
+print MSG $opt_m;
+close MSG;
+
+`git-cat-file commit $commit | sed -e '1,/^\$/d' >> .msg`;
 $? && die "Error extracting the commit message";
 
 my (@afiles, @dfiles, @mfiles);
 my @files = safe_pipe_capture('git-diff-tree', '-r', $parent, $commit);
-print @files;
+#print @files;
 $? && die "Error in git-diff-tree";
 foreach my $f (@files) {
     chomp $f;
     if (@status > 1) { warn 'Strange! cvs status returned more than one line?'};
     unless ($status[0] =~ m/Status: Unknown$/) {
        $dirty = 1;
-       warn "File $f is already known in your CVS checkout!\n";
+       warn "File $f is already known in your CVS checkout -- perhaps it has been added by another user. Or this may indicate that it exists on a different branch. If this is the case, use -f to force the merge.\n";
     }
 }
 foreach my $f (@mfiles, @dfiles) {
     }
 }
 if ($dirty) {
-    die "Exiting: your CVS tree is not clean for this merge.";
+    if ($opt_f) {      warn "The tree is not clean -- forced merge\n";
+       $dirty = 0;
+    } else {
+       die "Exiting: your CVS tree is not clean for this merge.";
+    }
 }
 
 ###
 }
 sub usage {
        print STDERR <<END;
-Usage: GIT_DIR=/path/to/.git ${\basename $0} [-h] [-p] [-v] [-c] [ parent ] commit
+Usage: GIT_DIR=/path/to/.git ${\basename $0} [-h] [-p] [-v] [-c] [-f] [-m msgprefix] [ parent ] commit
 END
        exit(1);
 }
index c0ae00bda74e68f98efc63c093efb73c7ff914f4..8c707f2c664ccfc9cad4fca443a5dee1d75604ba 100755 (executable)
@@ -350,7 +350,7 @@ sub _line {
                                return $res;
                        } elsif($line =~ s/^E //) {
                                # print STDERR "S: $line\n";
-                       } elsif($line =~ /^Remove-entry /i) {
+                       } elsif($line =~ /^(Remove-entry|Removed) /i) {
                                $line = $self->readline(); # filename
                                $line = $self->readline(); # OK
                                chomp $line;
index ffd9c66f940d6454d077e2b0082f5afd360d901e..5ccca4f99f31b9fa370baaf7e85795ed2bf49f13 100755 (executable)
@@ -214,8 +214,7 @@ sub req_Globaloption
 {
     my ( $cmd, $data ) = @_;
     $log->debug("req_Globaloption : $data");
-
-    # TODO : is this data useful ???
+    $state->{globaloptions}{$data} = 1;
 }
 
 # Valid-responses request-list \n
@@ -267,12 +266,32 @@ sub req_Directory
 
     $state->{localdir} = $data;
     $state->{repository} = $repository;
-    $state->{directory} = $repository;
-    $state->{directory} =~ s/^$state->{CVSROOT}\///;
-    $state->{module} = $1 if ($state->{directory} =~ s/^(.*?)(\/|$)//);
+    $state->{path} = $repository;
+    $state->{path} =~ s/^$state->{CVSROOT}\///;
+    $state->{module} = $1 if ($state->{path} =~ s/^(.*?)(\/|$)//);
+    $state->{path} .= "/" if ( $state->{path} =~ /\S/ );
+
+    $state->{directory} = $state->{localdir};
+    $state->{directory} = "" if ( $state->{directory} eq "." );
     $state->{directory} .= "/" if ( $state->{directory} =~ /\S/ );
 
-    $log->debug("req_Directory : localdir=$data repository=$repository directory=$state->{directory} module=$state->{module}");
+    if ( not defined($state->{prependdir}) and $state->{localdir} eq "." and $state->{path} =~ /\S/ )
+    {
+        $log->info("Setting prepend to '$state->{path}'");
+        $state->{prependdir} = $state->{path};
+        foreach my $entry ( keys %{$state->{entries}} )
+        {
+            $state->{entries}{$state->{prependdir} . $entry} = $state->{entries}{$entry};
+            delete $state->{entries}{$entry};
+        }
+    }
+
+    if ( defined ( $state->{prependdir} ) )
+    {
+        $log->debug("Prepending '$state->{prependdir}' to state|directory");
+        $state->{directory} = $state->{prependdir} . $state->{directory}
+    }
+    $log->debug("req_Directory : localdir=$data repository=$repository path=$state->{path} directory=$state->{directory} module=$state->{module}");
 }
 
 # Entry entry-line \n
@@ -290,7 +309,7 @@ sub req_Entry
 {
     my ( $cmd, $data ) = @_;
 
-    $log->debug("req_Entry : $data");
+    #$log->debug("req_Entry : $data");
 
     my @data = split(/\//, $data);
 
@@ -300,6 +319,22 @@ sub req_Entry
         options     => $data[4],
         tag_or_date => $data[5],
     };
+
+    $log->info("Received entry line '$data' => '" . $state->{directory} . $data[1] . "'");
+}
+
+# Questionable filename \n
+#     Response expected: no. Additional data: no. Tell the server to check
+#     whether filename should be ignored, and if not, next time the server
+#     sends responses, send (in a M response) `?' followed by the directory and
+#     filename. filename must not contain `/'; it needs to be a file in the
+#     directory named by the most recent Directory request.
+sub req_Questionable
+{
+    my ( $cmd, $data ) = @_;
+
+    $log->debug("req_Questionable : $data");
+    $state->{entries}{$state->{directory}.$data}{questionable} = 1;
 }
 
 # add \n
@@ -332,8 +367,7 @@ sub req_add
             next;
         }
 
-
-        my ( $filepart, $dirpart ) = filenamesplit($filename);
+        my ( $filepart, $dirpart ) = filenamesplit($filename, 1);
 
         print "E cvs add: scheduling file `$filename' for addition\n";
 
@@ -414,7 +448,7 @@ sub req_remove
         }
 
 
-        my ( $filepart, $dirpart ) = filenamesplit($filename);
+        my ( $filepart, $dirpart ) = filenamesplit($filename, 1);
 
         print "E cvs remove: scheduling `$filename' for removal\n";
 
@@ -502,22 +536,6 @@ sub req_Unchanged
     #$log->debug("req_Unchanged : $data");
 }
 
-# Questionable filename \n
-#     Response expected: no. Additional data: no.
-#     Tell the server to check whether filename should be ignored,
-#     and if not, next time the server sends responses, send (in
-#     a M response) `?' followed by the directory and filename.
-#     filename must not contain `/'; it needs to be a file in the
-#     directory named by the most recent Directory request.
-sub req_Questionable
-{
-    my ( $cmd, $data ) = @_;
-
-    $state->{entries}{$state->{directory}.$data}{questionable} = 1;
-
-    #$log->debug("req_Questionable : $data");
-}
-
 # Argument text \n
 #     Response expected: no. Save argument for use in a subsequent command.
 #     Arguments accumulate until an argument-using command is given, at which
@@ -757,8 +775,7 @@ sub req_update
 
     $updater->update();
 
-    # if no files were specified, we need to work out what files we should be providing status on ...
-    argsfromdir($updater) if ( scalar ( @{$state->{args}} ) == 0 );
+    argsfromdir($updater);
 
     #$log->debug("update state : " . Dumper($state));
 
@@ -767,6 +784,8 @@ sub req_update
     {
         $filename = filecleanup($filename);
 
+        $log->debug("Processing file $filename");
+
         # if we have a -C we should pretend we never saw modified stuff
         if ( exists ( $state->{opt}{C} ) )
         {
@@ -821,13 +840,16 @@ sub req_update
 
         if ( $meta->{filehash} eq "deleted" )
         {
-            my ( $filepart, $dirpart ) = filenamesplit($filename);
+            my ( $filepart, $dirpart ) = filenamesplit($filename,1);
 
             $log->info("Removing '$filename' from working copy (no longer in the repo)");
 
             print "E cvs update: `$filename' is no longer in the repository\n";
-            print "Removed $dirpart\n";
-            print "$filepart\n";
+            # Don't want to actually _DO_ the update if -n specified
+            unless ( $state->{globaloptions}{-n} ) {
+               print "Removed $dirpart\n";
+               print "$filepart\n";
+           }
         }
         elsif ( not defined ( $state->{entries}{$filename}{modified_hash} )
                or $state->{entries}{$filename}{modified_hash} eq $oldmeta->{filehash} )
@@ -840,34 +862,42 @@ sub req_update
             print "MT newline\n";
             print "MT -updated\n";
 
-            my ( $filepart, $dirpart ) = filenamesplit($filename);
-            $dirpart =~ s/^$state->{directory}//;
-
-            if ( defined ( $wrev ) )
-            {
-                # instruct client we're sending a file to put in this path as a replacement
-                print "Update-existing $dirpart\n";
-                $log->debug("Updating existing file 'Update-existing $dirpart'");
-            } else {
-                # instruct client we're sending a file to put in this path as a new file
-                print "Created $dirpart\n";
-                $log->debug("Creating new file 'Created $dirpart'");
-            }
-            print $state->{CVSROOT} . "/$state->{module}/$filename\n";
-
-            # this is an "entries" line
-            $log->debug("/$filepart/1.$meta->{revision}///");
-            print "/$filepart/1.$meta->{revision}///\n";
-
-            # permissions
-            $log->debug("SEND : u=$meta->{mode},g=$meta->{mode},o=$meta->{mode}");
-            print "u=$meta->{mode},g=$meta->{mode},o=$meta->{mode}\n";
-
-            # transmit file
-            transmitfile($meta->{filehash});
+            my ( $filepart, $dirpart ) = filenamesplit($filename,1);
+
+           # Don't want to actually _DO_ the update if -n specified
+           unless ( $state->{globaloptions}{-n} )
+           {
+               if ( defined ( $wrev ) )
+               {
+                   # instruct client we're sending a file to put in this path as a replacement
+                   print "Update-existing $dirpart\n";
+                   $log->debug("Updating existing file 'Update-existing $dirpart'");
+               } else {
+                   # instruct client we're sending a file to put in this path as a new file
+                   print "Clear-static-directory $dirpart\n";
+                   print $state->{CVSROOT} . "/$state->{module}/$dirpart\n";
+                   print "Clear-sticky $dirpart\n";
+                   print $state->{CVSROOT} . "/$state->{module}/$dirpart\n";
+
+                   $log->debug("Creating new file 'Created $dirpart'");
+                   print "Created $dirpart\n";
+               }
+               print $state->{CVSROOT} . "/$state->{module}/$filename\n";
+
+               # this is an "entries" line
+               $log->debug("/$filepart/1.$meta->{revision}///");
+               print "/$filepart/1.$meta->{revision}///\n";
+
+               # permissions
+               $log->debug("SEND : u=$meta->{mode},g=$meta->{mode},o=$meta->{mode}");
+               print "u=$meta->{mode},g=$meta->{mode},o=$meta->{mode}\n";
+
+               # transmit file
+               transmitfile($meta->{filehash});
+           }
         } else {
             $log->info("Updating '$filename'");
-            my ( $filepart, $dirpart ) = filenamesplit($meta->{name});
+            my ( $filepart, $dirpart ) = filenamesplit($meta->{name},1);
 
             my $dir = tempdir( DIR => $TEMP_DIR, CLEANUP => 1 ) . "/";
 
@@ -892,19 +922,29 @@ sub req_update
                 $log->info("Merged successfully");
                 print "M M $filename\n";
                 $log->debug("Update-existing $dirpart");
-                print "Update-existing $dirpart\n";
-                $log->debug($state->{CVSROOT} . "/$state->{module}/$filename");
-                print $state->{CVSROOT} . "/$state->{module}/$filename\n";
-                $log->debug("/$filepart/1.$meta->{revision}///");
-                print "/$filepart/1.$meta->{revision}///\n";
+
+                # Don't want to actually _DO_ the update if -n specified
+                unless ( $state->{globaloptions}{-n} )
+                {
+                    print "Update-existing $dirpart\n";
+                    $log->debug($state->{CVSROOT} . "/$state->{module}/$filename");
+                    print $state->{CVSROOT} . "/$state->{module}/$filename\n";
+                    $log->debug("/$filepart/1.$meta->{revision}///");
+                    print "/$filepart/1.$meta->{revision}///\n";
+                }
             }
             elsif ( $return == 1 )
             {
                 $log->info("Merged with conflicts");
                 print "M C $filename\n";
-                print "Update-existing $dirpart\n";
-                print $state->{CVSROOT} . "/$state->{module}/$filename\n";
-                print "/$filepart/1.$meta->{revision}/+//\n";
+
+                # Don't want to actually _DO_ the update if -n specified
+                unless ( $state->{globaloptions}{-n} )
+                {
+                    print "Update-existing $dirpart\n";
+                    print $state->{CVSROOT} . "/$state->{module}/$filename\n";
+                    print "/$filepart/1.$meta->{revision}/+//\n";
+                }
             }
             else
             {
@@ -912,17 +952,21 @@ sub req_update
                 next;
             }
 
-            # permissions
-            $log->debug("SEND : u=$meta->{mode},g=$meta->{mode},o=$meta->{mode}");
-            print "u=$meta->{mode},g=$meta->{mode},o=$meta->{mode}\n";
-
-            # transmit file, format is single integer on a line by itself (file
-            # size) followed by the file contents
-            # TODO : we should copy files in blocks
-            my $data = `cat $file_local`;
-            $log->debug("File size : " . length($data));
-            print length($data) . "\n";
-            print $data;
+            # Don't want to actually _DO_ the update if -n specified
+            unless ( $state->{globaloptions}{-n} )
+            {
+                # permissions
+                $log->debug("SEND : u=$meta->{mode},g=$meta->{mode},o=$meta->{mode}");
+                print "u=$meta->{mode},g=$meta->{mode},o=$meta->{mode}\n";
+
+                # transmit file, format is single integer on a line by itself (file
+                # size) followed by the file contents
+                # TODO : we should copy files in blocks
+                my $data = `cat $file_local`;
+                $log->debug("File size : " . length($data));
+                print length($data) . "\n";
+                print $data;
+            }
 
             chdir "/";
         }
@@ -950,6 +994,7 @@ sub req_ci
 
     if ( -e $state->{CVSROOT} . "/index" )
     {
+        $log->warn("file 'index' already exists in the git repository");
         print "error 1 Index already exists in git repo\n";
         exit;
     }
@@ -957,6 +1002,7 @@ sub req_ci
     my $lockfile = "$state->{CVSROOT}/refs/heads/$state->{module}.lock";
     unless ( sysopen(LOCKFILE,$lockfile,O_EXCL|O_CREAT|O_WRONLY) )
     {
+        $log->warn("lockfile '$lockfile' already exists, please try again");
         print "error 1 Lock file '$lockfile' already exists, please try again\n";
         exit;
     }
@@ -988,6 +1034,7 @@ sub req_ci
     # foreach file specified on the commandline ...
     foreach my $filename ( @{$state->{args}} )
     {
+        my $committedfile = $filename;
         $filename = filecleanup($filename);
 
         next unless ( exists $state->{entries}{$filename}{modified_filename} or not $state->{entries}{$filename}{unchanged} );
@@ -1022,7 +1069,7 @@ sub req_ci
             exit;
         }
 
-        push @committedfiles, $filename;
+        push @committedfiles, $committedfile;
         $log->info("Committing $filename");
 
         system("mkdir","-p",$dirpart) unless ( -d $dirpart );
@@ -1105,7 +1152,7 @@ sub req_ci
 
         my $meta = $updater->getmeta($filename);
 
-        my ( $filepart, $dirpart ) = filenamesplit($filename);
+        my ( $filepart, $dirpart ) = filenamesplit($filename, 1);
 
         $log->debug("Checked-in $dirpart : $filename");
 
@@ -1141,7 +1188,7 @@ sub req_status
     $updater->update();
 
     # if no files were specified, we need to work out what files we should be providing status on ...
-    argsfromdir($updater) if ( scalar ( @{$state->{args}} ) == 0 );
+    argsfromdir($updater);
 
     # foreach file specified on the commandline ...
     foreach my $filename ( @{$state->{args}} )
@@ -1242,7 +1289,7 @@ sub req_diff
     $updater->update();
 
     # if no files were specified, we need to work out what files we should be providing status on ...
-    argsfromdir($updater) if ( scalar ( @{$state->{args}} ) == 0 );
+    argsfromdir($updater);
 
     # foreach file specified on the commandline ...
     foreach my $filename ( @{$state->{args}} )
@@ -1384,7 +1431,7 @@ sub req_log
     $updater->update();
 
     # if no files were specified, we need to work out what files we should be providing status on ...
-    argsfromdir($updater) if ( scalar ( @{$state->{args}} ) == 0 );
+    argsfromdir($updater);
 
     # foreach file specified on the commandline ...
     foreach my $filename ( @{$state->{args}} )
@@ -1460,7 +1507,7 @@ sub req_annotate
     $updater->update();
 
     # if no files were specified, we need to work out what files we should be providing annotate on ...
-    argsfromdir($updater) if ( scalar ( @{$state->{args}} ) == 0 );
+    argsfromdir($updater);
 
     # we'll need a temporary checkout dir
     my $tmpdir = tempdir ( DIR => $TEMP_DIR );
@@ -1655,13 +1702,36 @@ sub argsfromdir
 {
     my $updater = shift;
 
-    $state->{args} = [];
+    $state->{args} = [] if ( scalar(@{$state->{args}}) == 1 and $state->{args}[0] eq "." );
+
+    return if ( scalar ( @{$state->{args}} ) > 1 );
 
-    foreach my $file ( @{$updater->gethead} )
+    if ( scalar(@{$state->{args}}) == 1 )
     {
-        next if ( $file->{filehash} eq "deleted" and not defined ( $state->{entries}{$file->{name}} ) );
-        next unless ( $file->{name} =~ s/^$state->{directory}// );
-        push @{$state->{args}}, $file->{name};
+        my $arg = $state->{args}[0];
+        $arg .= $state->{prependdir} if ( defined ( $state->{prependdir} ) );
+
+        $log->info("Only one arg specified, checking for directory expansion on '$arg'");
+
+        foreach my $file ( @{$updater->gethead} )
+        {
+            next if ( $file->{filehash} eq "deleted" and not defined ( $state->{entries}{$file->{name}} ) );
+            next unless ( $file->{name} =~ /^$arg\// or $file->{name} eq $arg  );
+            push @{$state->{args}}, $file->{name};
+        }
+
+        shift @{$state->{args}} if ( scalar(@{$state->{args}}) > 1 );
+    } else {
+        $log->info("Only one arg specified, populating file list automatically");
+
+        $state->{args} = [];
+
+        foreach my $file ( @{$updater->gethead} )
+        {
+            next if ( $file->{filehash} eq "deleted" and not defined ( $state->{entries}{$file->{name}} ) );
+            next unless ( $file->{name} =~ s/^$state->{prependdir}// );
+            push @{$state->{args}}, $file->{name};
+        }
     }
 }
 
@@ -1736,11 +1806,17 @@ sub transmitfile
 sub filenamesplit
 {
     my $filename = shift;
+    my $fixforlocaldir = shift;
 
     my ( $filepart, $dirpart ) = ( $filename, "." );
     ( $filepart, $dirpart ) = ( $2, $1 ) if ( $filename =~ /(.*)\/(.*)/ );
     $dirpart .= "/";
 
+    if ( $fixforlocaldir )
+    {
+        $dirpart =~ s/^$state->{prependdir}//;
+    }
+
     return ( $filepart, $dirpart );
 }
 
@@ -1756,8 +1832,7 @@ sub filecleanup
     }
 
     $filename =~ s/^\.\///g;
-    $filename = $state->{directory} . $filename;
-
+    $filename = $state->{prependdir} . $filename;
     return $filename;
 }
 
index c077f44ca1637008b5c16c3d48294a2d268edc9e..8a16eadfbd391c957c5e297a3511bbfe4c5ef89d 100755 (executable)
@@ -274,7 +274,7 @@ print "\n---\n\n";
 close FH or die "close $commsg pipe";
 ' "$keep_subject" "$num" "$signoff" "$headers" "$mimemagic" $commsg
 
-       git-diff-tree -p $diff_opts "$commit" | git-apply --stat --summary
+       git-diff-tree -p --stat --summary $diff_opts "$commit"
        echo
        case "$mimemagic" in
        '');;
diff --git a/git-grep.sh b/git-grep.sh
deleted file mode 100755 (executable)
index ad4f2fe..0000000
+++ /dev/null
@@ -1,62 +0,0 @@
-#!/bin/sh
-#
-# Copyright (c) Linus Torvalds, 2005
-#
-
-USAGE='[<option>...] [-e] <pattern> [<path>...]'
-SUBDIRECTORY_OK='Yes'
-. git-sh-setup
-
-got_pattern () {
-       if [ -z "$no_more_patterns" ]
-       then
-               pattern="$1" no_more_patterns=yes
-       else
-               die "git-grep: do not specify more than one pattern"
-       fi
-}
-
-no_more_patterns=
-pattern=
-flags=()
-git_flags=()
-while : ; do
-       case "$1" in
-       -o|--cached|--deleted|--others|--killed|\
-       --ignored|--modified|--exclude=*|\
-       --exclude-from=*|\--exclude-per-directory=*)
-               git_flags=("${git_flags[@]}" "$1")
-               ;;
-       -e)
-               got_pattern "$2"
-               shift
-               ;;
-       -A|-B|-C|-D|-d|-f|-m)
-               flags=("${flags[@]}" "$1" "$2")
-               shift
-               ;;
-       --)
-               # The rest are git-ls-files paths
-               shift
-               break
-               ;;
-       -*)
-               flags=("${flags[@]}" "$1")
-               ;;
-       *)
-               if [ -z "$no_more_patterns" ]
-               then
-                       got_pattern "$1"
-                       shift
-               fi
-               [ "$1" = -- ] && shift
-               break
-               ;;
-       esac
-       shift
-done
-[ "$pattern" ] || {
-       usage
-}
-git-ls-files -z "${git_flags[@]}" -- "$@" |
-       xargs -0 grep "${flags[@]}" -e "$pattern" --
index b834e79c98af51a9f3ad4927a2d11c999349b0e4..af1f25b3c51d197ea5fd24b7623dfb591f867133 100755 (executable)
@@ -55,8 +55,7 @@ finish () {
 
        case "$no_summary" in
        '')
-               git-diff-tree -p -M "$head" "$1" |
-               git-apply --stat --summary
+               git-diff-tree -p --stat --summary -M "$head" "$1"
                ;;
        esac
 }
index c9b899e3d73152a92523ed460f4d90fdab3d6f33..187f0883c9136772677088ddf61228291d4b41d1 100755 (executable)
@@ -10,7 +10,10 @@ get_data_source () {
                # Not so fast.  This could be the partial URL shorthand...
                token=$(expr "z$1" : 'z\([^/]*\)/')
                remainder=$(expr "z$1" : 'z[^/]*/\(.*\)')
-               if test -f "$GIT_DIR/branches/$token"
+               if test "$(git-repo-config --get "remote.$token.url")"
+               then
+                       echo config-partial
+               elif test -f "$GIT_DIR/branches/$token"
                then
                        echo branches-partial
                else
@@ -18,7 +21,10 @@ get_data_source () {
                fi
                ;;
        *)
-               if test -f "$GIT_DIR/remotes/$1"
+               if test "$(git-repo-config --get "remote.$1.url")"
+               then
+                       echo config
+               elif test -f "$GIT_DIR/remotes/$1"
                then
                        echo remotes
                elif test -f "$GIT_DIR/branches/$1"
@@ -35,6 +41,15 @@ get_remote_url () {
        case "$data_source" in
        '')
                echo "$1" ;;
+       config-partial)
+               token=$(expr "z$1" : 'z\([^/]*\)/')
+               remainder=$(expr "z$1" : 'z[^/]*/\(.*\)')
+               url=$(git-repo-config --get "remote.$token.url")
+               echo "$url/$remainder"
+               ;;
+       config)
+               git-repo-config --get "remote.$1.url"
+               ;;
        remotes)
                sed -ne '/^URL: */{
                        s///p
@@ -56,8 +71,10 @@ get_remote_url () {
 get_remote_default_refs_for_push () {
        data_source=$(get_data_source "$1")
        case "$data_source" in
-       '' | branches | branches-partial)
+       '' | config-partial | branches | branches-partial)
                ;; # no default push mapping, just send matching refs.
+       config)
+               git-repo-config --get-all "remote.$1.push" ;;
        remotes)
                sed -ne '/^Push: */{
                        s///p
@@ -111,8 +128,11 @@ canon_refs_list_for_fetch () {
 get_remote_default_refs_for_fetch () {
        data_source=$(get_data_source "$1")
        case "$data_source" in
-       '' | branches-partial)
+       '' | config-partial | branches-partial)
                echo "HEAD:" ;;
+       config)
+               canon_refs_list_for_fetch \
+                       $(git-repo-config --get-all "remote.$1.fetch") ;;
        branches)
                remote_branch=$(sed -ne '/#/s/.*#//p' "$GIT_DIR/branches/$1")
                case "$remote_branch" in '') remote_branch=master ;; esac
diff --git a/git-quiltimport.sh b/git-quiltimport.sh
new file mode 100755 (executable)
index 0000000..12d9d0c
--- /dev/null
@@ -0,0 +1,118 @@
+#!/bin/sh
+USAGE='--dry-run --author <author> --patches </path/to/quilt/patch/directory>'
+SUBDIRECTORY_ON=Yes
+. git-sh-setup
+
+dry_run=""
+quilt_author=""
+while case "$#" in 0) break;; esac
+do
+       case "$1" in
+       --au=*|--aut=*|--auth=*|--autho=*|--author=*)
+               quilt_author=$(expr "$1" : '-[^=]*\(.*\)')
+               shift
+               ;;
+
+       --au|--aut|--auth|--autho|--author)
+               case "$#" in 1) usage ;; esac
+               shift
+               quilt_author="$1"
+               shift
+               ;;
+
+       --dry-run)
+               shift
+               dry_run=1
+               ;;
+
+       --pa=*|--pat=*|--patc=*|--patch=*|--patche=*|--patches=*)
+               QUILT_PATCHES=$(expr "$1" : '-[^=]*\(.*\)')
+               shift
+               ;;
+
+       --pa|--pat|--patc|--patch|--patche|--patches)
+               case "$#" in 1) usage ;; esac
+               shift
+               QUILT_PATCHES="$1"
+               shift
+               ;;
+
+       *)
+               break
+               ;;
+       esac
+done
+
+# Quilt Author
+if [ -n "$quilt_author" ] ; then
+       quilt_author_name=$(expr "z$quilt_author" : 'z\(.*[^ ]\) *<.*') &&
+       quilt_author_email=$(expr "z$quilt_author" : '.*<\([^>]*\)') &&
+       test '' != "$quilt_author_name" &&
+       test '' != "$quilt_author_email" ||
+       die "malformatted --author parameter"
+fi
+
+# Quilt patch directory
+: ${QUILT_PATCHES:=patches}
+if ! [ -d "$QUILT_PATCHES" ] ; then
+       echo "The \"$QUILT_PATCHES\" directory does not exist."
+       exit 1
+fi
+
+# Temporay directories
+tmp_dir=.dotest
+tmp_msg="$tmp_dir/msg"
+tmp_patch="$tmp_dir/patch"
+tmp_info="$tmp_dir/info"
+
+
+# Find the intial commit
+commit=$(git-rev-parse HEAD)
+
+mkdir $tmp_dir || exit 2
+for patch_name in $(cat "$QUILT_PATCHES/series" | grep -v '^#'); do
+       echo $patch_name
+       (cat $QUILT_PATCHES/$patch_name | git-mailinfo "$tmp_msg" "$tmp_patch" > "$tmp_info") || exit 3
+
+       # Parse the author information
+       export GIT_AUTHOR_NAME=$(sed -ne 's/Author: //p' "$tmp_info")
+       export GIT_AUTHOR_EMAIL=$(sed -ne 's/Email: //p' "$tmp_info")
+       while test -z "$GIT_AUTHOR_EMAIL" && test -z "$GIT_AUTHOR_NAME" ; do
+               if [ -n "$quilt_author" ] ; then
+                       GIT_AUTHOR_NAME="$quilt_author_name";
+                       GIT_AUTHOR_EMAIL="$quilt_author_email";
+               elif [ -n "$dry_run" ]; then
+                       echo "No author found in $patch_name" >&2;
+                       GIT_AUTHOR_NAME="dry-run-not-found";
+                       GIT_AUTHOR_EMAIL="dry-run-not-found";
+               else
+                       echo "No author found in $patch_name" >&2;
+                       echo "---"
+                       cat $tmp_msg
+                       echo -n "Author: ";
+                       read patch_author
+
+                       echo "$patch_author"
+
+                       patch_author_name=$(expr "z$patch_author" : 'z\(.*[^ ]\) *<.*') &&
+                       patch_author_email=$(expr "z$patch_author" : '.*<\([^>]*\)') &&
+                       test '' != "$patch_author_name" &&
+                       test '' != "$patch_author_email" &&
+                       GIT_AUTHOR_NAME="$patch_author_name" &&
+                       GIT_AUTHOR_EMAIL="$patch_author_email"
+               fi
+       done
+       export GIT_AUTHOR_DATE=$(sed -ne 's/Date: //p' "$tmp_info")
+       export SUBJECT=$(sed -ne 's/Subject: //p' "$tmp_info")
+       if [ -z "$SUBJECT" ] ; then
+               SUBJECT=$(echo $patch_name | sed -e 's/.patch$//')
+       fi
+
+       if [ -z "$dry_run" ] ; then
+               git-apply --index -C1 "$tmp_patch" &&
+               tree=$(git-write-tree) &&
+               commit=$((echo "$SUBJECT"; echo; cat "$tmp_msg") | git-commit-tree $tree -p $commit) &&
+               git-update-ref HEAD $commit || exit 4
+       fi
+done
+rm -rf $tmp_dir || exit 5
index 9e259028e087e6eb33bd338855aa12f9ebb10ae9..6ff6088d187cfc54e0de0898fab555e7af319961 100755 (executable)
@@ -12,9 +12,10 @@ It then attempts to create a new commit for each commit from the original
 
 It is possible that a merge failure will prevent this process from being
 completely automatic.  You will have to resolve any such merge failure
-and run git-rebase --continue.  If you can not resolve the merge failure,
-running git-rebase --abort will restore the original <branch> and remove
-the working files found in the .dotest directory.
+and run git rebase --continue.  Another option is to bypass the commit
+that caused the merge failure with git rebase --skip.  To restore the
+original <branch> and remove the .dotest working files, use the command
+git rebase --abort instead.
 
 Note that if <branch> is not specified on the command line, the
 currently checked out branch is used.  You must be in the top
@@ -28,6 +29,11 @@ Example:       git-rebase master~1 topic
 '
 . git-sh-setup
 
+RESOLVEMSG="
+When you have resolved this problem run \"git rebase --continue\".
+If you would prefer to skip this patch, instead run \"git rebase --skip\".
+To restore the original branch and stop rebasing run \"git rebase --abort\".
+"
 unset newbase
 while case "$#" in 0) break ;; esac
 do
@@ -40,7 +46,11 @@ do
                        exit 1
                        ;;
                esac
-               git am --resolved --3way
+               git am --resolved --3way --resolvemsg="$RESOLVEMSG"
+               exit
+               ;;
+       --skip)
+               git am -3 --skip --resolvemsg="$RESOLVEMSG"
                exit
                ;;
        --abort)
@@ -143,4 +153,5 @@ then
 fi
 
 git-format-patch -k --stdout --full-index "$upstream" ORIG_HEAD |
-git am --binary -3 -k
+git am --binary -3 -k --resolvemsg="$RESOLVEMSG"
+
index e0c9f323c3ba8a4f42ec5a4a4fa53a8bddb36b34..4fb3f26e834f78d40ea629dcd6732d390a129d58 100755 (executable)
@@ -48,15 +48,15 @@ name=$(git-rev-list --objects --all $rev_list 2>&1 |
        exit 1
 if [ -z "$name" ]; then
        echo Nothing new to pack.
-       exit 0
-fi
-echo "Pack pack-$name created."
+else
+       echo "Pack pack-$name created."
 
-mkdir -p "$PACKDIR" || exit
+       mkdir -p "$PACKDIR" || exit
 
-mv .tmp-pack-$name.pack "$PACKDIR/pack-$name.pack" &&
-mv .tmp-pack-$name.idx  "$PACKDIR/pack-$name.idx" ||
-exit
+       mv .tmp-pack-$name.pack "$PACKDIR/pack-$name.pack" &&
+       mv .tmp-pack-$name.idx  "$PACKDIR/pack-$name.idx" ||
+       exit
+fi
 
 if test "$remove_redundant" = t
 then
index 2c48bfb299325ba7a27e883b6a4815ebde09ae58..4319e35c628efdd86745c560d2dfe306b180fb1b 100755 (executable)
@@ -30,4 +30,4 @@ echo "  $url"
 echo
 
 git log  $baserev..$headrev | git-shortlog ;
-git diff $baserev..$headrev | git-apply --stat --summary
+git diff --stat --summary $baserev..$headrev
index 6cb073cb16f8b8d8b923bd0cd77be00da0e169e3..0ee3e3e154a7721dc9d604fd400d2f53eaad9940 100755 (executable)
@@ -6,6 +6,7 @@ USAGE='[--mixed | --soft | --hard]  [<commit-ish>]'
 tmp=${GIT_DIR}/reset.$$
 trap 'rm -f $tmp-*' 0 1 2 3 15
 
+update=
 reset_type=--mixed
 case "$1" in
 --mixed | --soft | --hard)
@@ -23,24 +24,7 @@ rev=$(git-rev-parse --verify $rev^0) || exit
 # behind before a hard reset, so that we can remove them.
 if test "$reset_type" = "--hard"
 then
-       {
-               git-ls-files --stage -z
-               git-rev-parse --verify HEAD 2>/dev/null &&
-               git-ls-tree -r -z HEAD
-       } | perl -e '
-           use strict;
-           my %seen;
-           $/ = "\0";
-           while (<>) {
-               chomp;
-               my ($info, $path) = split(/\t/, $_);
-               next if ($info =~ / tree /);
-               if (!$seen{$path}) {
-                       $seen{$path} = 1;
-                       print "$path\0";
-               }
-           }
-       ' >$tmp-exists
+       update=-u
 fi
 
 # Soft reset does not touch the index file nor the working tree
@@ -54,7 +38,7 @@ then
                die "Cannot do a soft reset in the middle of a merge."
        fi
 else
-       git-read-tree --reset "$rev" || exit
+       git-read-tree --reset $update "$rev" || exit
 fi
 
 # Any resets update HEAD to the head being switched to.
@@ -68,33 +52,7 @@ git-update-ref HEAD "$rev"
 
 case "$reset_type" in
 --hard )
-       # Hard reset matches the working tree to that of the tree
-       # being switched to.
-       git-checkout-index -f -u -q -a
-       git-ls-files --cached -z |
-       perl -e '
-               use strict;
-               my (%keep, $fh);
-               $/ = "\0";
-               while (<STDIN>) {
-                       chomp;
-                       $keep{$_} = 1;
-               }
-               open $fh, "<", $ARGV[0]
-                       or die "cannot open $ARGV[0]";
-               while (<$fh>) {
-                       chomp;
-                       if (! exists $keep{$_}) {
-                               # it is ok if this fails -- it may already
-                               # have been culled by checkout-index.
-                               unlink $_;
-                               while (s|/[^/]*$||) {
-                                       rmdir($_) or last;
-                               }
-                       }
-               }
-       ' $tmp-exists
-       ;;
+       ;; # Nothing else to do
 --soft )
        ;; # Nothing else to do
 --mixed )
index c19d3a6916ce9c5dccff09f6edfd8b5478b2e834..de8b5f0f0fbb42e82327670e6916382f6f2d3e47 100755 (executable)
@@ -137,7 +137,7 @@ esac >.msg
 # $prev and $commit on top of us (when cherry-picking or replaying).
 
 echo >&2 "First trying simple merge strategy to $me."
-git-read-tree -m -u $base $head $next &&
+git-read-tree -m -u --aggressive $base $head $next &&
 result=$(git-write-tree 2>/dev/null) || {
     echo >&2 "Simple $me fails; trying Automatic $me."
     git-merge-index -o git-merge-one-file -a || {
index 703dd1ff9ee641b58ad592cfc702de7f96c59eed..312a4ea2aa10189eeb470a185993bb7f8af45d0e 100755 (executable)
@@ -40,7 +40,8 @@
 my (@to,@cc,@initial_cc,$initial_reply_to,$initial_subject,@files,$from,$compose,$time);
 
 # Behavior modification variables
-my ($chain_reply_to, $smtp_server, $quiet, $suppress_from, $no_signed_off_cc) = (1, "localhost", 0, 0, 0);
+my ($chain_reply_to, $quiet, $suppress_from, $no_signed_off_cc) = (1, 0, 0, 0);
+my $smtp_server;
 
 # Example reply to:
 #$initial_reply_to = ''; #<20050203173208.GA23964@foobar.com>';
@@ -89,6 +90,41 @@ sub gitvar_ident {
 my ($author) = gitvar_ident('GIT_AUTHOR_IDENT');
 my ($committer) = gitvar_ident('GIT_COMMITTER_IDENT');
 
+my %aliases;
+chomp(my @alias_files = `git-repo-config --get-all sendemail.aliasesfile`);
+chomp(my $aliasfiletype = `git-repo-config sendemail.aliasfiletype`);
+my %parse_alias = (
+       # multiline formats can be supported in the future
+       mutt => sub { my $fh = shift; while (<$fh>) {
+               if (/^alias\s+(\S+)\s+(.*)$/) {
+                       my ($alias, $addr) = ($1, $2);
+                       $addr =~ s/#.*$//; # mutt allows # comments
+                        # commas delimit multiple addresses
+                       $aliases{$alias} = [ split(/\s*,\s*/, $addr) ];
+               }}},
+       mailrc => sub { my $fh = shift; while (<$fh>) {
+               if (/^alias\s+(\S+)\s+(.*)$/) {
+                       # spaces delimit multiple addresses
+                       $aliases{$1} = [ split(/\s+/, $2) ];
+               }}},
+       pine => sub { my $fh = shift; while (<$fh>) {
+               if (/^(\S+)\s+(.*)$/) {
+                       $aliases{$1} = [ split(/\s*,\s*/, $2) ];
+               }}},
+       gnus => sub { my $fh = shift; while (<$fh>) {
+               if (/\(define-mail-alias\s+"(\S+?)"\s+"(\S+?)"\)/) {
+                       $aliases{$1} = [ $2 ];
+               }}}
+);
+
+if (@alias_files && defined $parse_alias{$aliasfiletype}) {
+       foreach my $file (@alias_files) {
+               open my $fh, '<', $file or die "opening $file: $!\n";
+               $parse_alias{$aliasfiletype}->($fh);
+               close $fh;
+       }
+}
+
 my $prompting = 0;
 if (!defined $from) {
        $from = $author || $committer;
@@ -112,6 +148,19 @@ sub gitvar_ident {
        $prompting++;
 }
 
+sub expand_aliases {
+       my @cur = @_;
+       my @last;
+       do {
+               @last = @cur;
+               @cur = map { $aliases{$_} ? @{$aliases{$_}} : $_ } @last;
+       } while (join(',',@cur) ne join(',',@last));
+       return @cur;
+}
+
+@to = expand_aliases(@to);
+@initial_cc = expand_aliases(@initial_cc);
+
 if (!defined $initial_subject && $compose) {
        do {
                $_ = $term->readline("What subject should the emails start with? ",
@@ -131,8 +180,14 @@ sub gitvar_ident {
        $initial_reply_to =~ s/(^\s+|\s+$)//g;
 }
 
-if (!defined $smtp_server) {
-       $smtp_server = "localhost";
+if (!$smtp_server) {
+       foreach (qw( /usr/sbin/sendmail /usr/lib/sendmail )) {
+               if (-x $_) {
+                       $smtp_server = $_;
+                       last;
+               }
+       }
+       $smtp_server ||= 'localhost'; # could be 127.0.0.1, too... *shrug*
 }
 
 if ($compose) {
@@ -252,6 +307,10 @@ sub gitvar_ident {
 
 sub extract_valid_address {
        my $address = shift;
+
+       # check for a local address:
+       return $address if ($address =~ /^([\w\-]+)$/);
+
        if ($have_email_valid) {
                return Email::Valid->address($address);
        } else {
@@ -310,26 +369,39 @@ sub send_message
 ";
        $header .= "In-Reply-To: $reply_to\n" if $reply_to;
 
-       $smtp ||= Net::SMTP->new( $smtp_server );
-       $smtp->mail( $from ) or die $smtp->message;
-       $smtp->to( @recipients ) or die $smtp->message;
-       $smtp->data or die $smtp->message;
-       $smtp->datasend("$header\n$message") or die $smtp->message;
-       $smtp->dataend() or die $smtp->message;
-       $smtp->ok or die "Failed to send $subject\n".$smtp->message;
-
+       if ($smtp_server =~ m#^/#) {
+               my $pid = open my $sm, '|-';
+               defined $pid or die $!;
+               if (!$pid) {
+                       exec($smtp_server,'-i',@recipients) or die $!;
+               }
+               print $sm "$header\n$message";
+               close $sm or die $?;
+       } else {
+               $smtp ||= Net::SMTP->new( $smtp_server );
+               $smtp->mail( $from ) or die $smtp->message;
+               $smtp->to( @recipients ) or die $smtp->message;
+               $smtp->data or die $smtp->message;
+               $smtp->datasend("$header\n$message") or die $smtp->message;
+               $smtp->dataend() or die $smtp->message;
+               $smtp->ok or die "Failed to send $subject\n".$smtp->message;
+       }
        if ($quiet) {
                printf "Sent %s\n", $subject;
        } else {
-               print "OK. Log says:
-Date: $date
-Server: $smtp_server Port: 25
-From: $from
-Subject: $subject
-Cc: $cc
-To: $to
-
-Result: ", $smtp->code, ' ', ($smtp->message =~ /\n([^\n]+\n)$/s), "\n";
+               print "OK. Log says:\nDate: $date\n";
+               if ($smtp) {
+                       print "Server: $smtp_server\n";
+               } else {
+                       print "Sendmail: $smtp_server\n";
+               }
+               print "From: $from\nSubject: $subject\nCc: $cc\nTo: $to\n\n";
+               if ($smtp) {
+                       print "Result: ", $smtp->code, ' ',
+                               ($smtp->message =~ /\n([^\n]+\n)$/s), "\n";
+               } else {
+                       print "Result: OK\n";
+               }
        }
 }
 
@@ -430,9 +502,14 @@ (@)
        my @emails;
 
        foreach my $entry (@_) {
-               my $clean = extract_valid_address($entry);
-               next if $seen{$clean}++;
-               push @emails, $entry;
+               if (my $clean = extract_valid_address($entry)) {
+                       $seen{$clean} ||= 0;
+                       next if $seen{$clean}++;
+                       push @emails, $entry;
+               } else {
+                       print STDERR "W: unable to extract a valid address",
+                                       " from: $entry\n";
+               }
        }
        return @emails;
 }
index dc6aa9576764d7c2da98fbe15339df685fd8b94c..a0afa25821b5438f41abfed3a2f27bd22767c3d6 100755 (executable)
@@ -25,14 +25,12 @@ do
        force=1
        ;;
     -l)
-        cd "$GIT_DIR/refs" &&
        case "$#" in
        1)
-               find tags -type f -print ;;
-       *)
-               shift
-               find tags -type f -print | grep "$@" ;;
+               set x . ;;
        esac
+       shift
+       git rev-parse --symbolic --tags | sort | grep "$@"
        exit $?
        ;;
     -m)
diff --git a/git.c b/git.c
index a8f7926b4875512b1d93768c1bc6d934111954f6..f4dff02bd3c2711a2eeac72be7b604bceda1a664 100644 (file)
--- a/git.c
+++ b/git.c
@@ -50,6 +50,10 @@ static void handle_internal_command(int argc, const char **argv, char **envp)
                { "fmt-patch", cmd_format_patch },
                { "count-objects", cmd_count_objects },
                { "diff", cmd_diff },
+               { "grep", cmd_grep },
+               { "rev-list", cmd_rev_list },
+               { "init-db", cmd_init_db },
+               { "check-ref-format", cmd_check_ref_format }
        };
        int i;
 
index 96dfc1de552a9559c3c00f962249dc7fa3424870..8ccd2564e728efe13966c2c1fd3e1cb93ea583a6 100644 (file)
@@ -74,12 +74,12 @@ Git revision tree visualiser ('gitk')
 %setup -q
 
 %build
-make %{_smp_mflags} CFLAGS="$RPM_OPT_FLAGS" WITH_OWN_SUBPROCESS_PY=YesPlease WITH_SEND_EMAIL=1 \
+make %{_smp_mflags} CFLAGS="$RPM_OPT_FLAGS" WITH_OWN_SUBPROCESS_PY=YesPlease \
      prefix=%{_prefix} all %{!?_without_docs: doc}
 
 %install
 rm -rf $RPM_BUILD_ROOT
-make %{_smp_mflags} DESTDIR=$RPM_BUILD_ROOT WITH_OWN_SUBPROCESS_PY=YesPlease WITH_SEND_EMAIL=1 \
+make %{_smp_mflags} DESTDIR=$RPM_BUILD_ROOT WITH_OWN_SUBPROCESS_PY=YesPlease \
      prefix=%{_prefix} mandir=%{_mandir} \
      install %{!?_without_docs: install-doc}
 
diff --git a/init-db.c b/init-db.c
deleted file mode 100644 (file)
index ff29496..0000000
--- a/init-db.c
+++ /dev/null
@@ -1,291 +0,0 @@
-/*
- * GIT - The information manager from hell
- *
- * Copyright (C) Linus Torvalds, 2005
- */
-#include "cache.h"
-
-#ifndef DEFAULT_GIT_TEMPLATE_DIR
-#define DEFAULT_GIT_TEMPLATE_DIR "/usr/share/git-core/templates/"
-#endif
-
-static void safe_create_dir(const char *dir, int share)
-{
-       if (mkdir(dir, 0777) < 0) {
-               if (errno != EEXIST) {
-                       perror(dir);
-                       exit(1);
-               }
-       }
-       else if (share && adjust_shared_perm(dir))
-               die("Could not make %s writable by group\n", dir);
-}
-
-static int copy_file(const char *dst, const char *src, int mode)
-{
-       int fdi, fdo, status;
-
-       mode = (mode & 0111) ? 0777 : 0666;
-       if ((fdi = open(src, O_RDONLY)) < 0)
-               return fdi;
-       if ((fdo = open(dst, O_WRONLY | O_CREAT | O_EXCL, mode)) < 0) {
-               close(fdi);
-               return fdo;
-       }
-       status = copy_fd(fdi, fdo);
-       close(fdo);
-
-       if (!status && adjust_shared_perm(dst))
-               return -1;
-
-       return status;
-}
-
-static void copy_templates_1(char *path, int baselen,
-                            char *template, int template_baselen,
-                            DIR *dir)
-{
-       struct dirent *de;
-
-       /* Note: if ".git/hooks" file exists in the repository being
-        * re-initialized, /etc/core-git/templates/hooks/update would
-        * cause git-init-db to fail here.  I think this is sane but
-        * it means that the set of templates we ship by default, along
-        * with the way the namespace under .git/ is organized, should
-        * be really carefully chosen.
-        */
-       safe_create_dir(path, 1);
-       while ((de = readdir(dir)) != NULL) {
-               struct stat st_git, st_template;
-               int namelen;
-               int exists = 0;
-
-               if (de->d_name[0] == '.')
-                       continue;
-               namelen = strlen(de->d_name);
-               if ((PATH_MAX <= baselen + namelen) ||
-                   (PATH_MAX <= template_baselen + namelen))
-                       die("insanely long template name %s", de->d_name);
-               memcpy(path + baselen, de->d_name, namelen+1);
-               memcpy(template + template_baselen, de->d_name, namelen+1);
-               if (lstat(path, &st_git)) {
-                       if (errno != ENOENT)
-                               die("cannot stat %s", path);
-               }
-               else
-                       exists = 1;
-
-               if (lstat(template, &st_template))
-                       die("cannot stat template %s", template);
-
-               if (S_ISDIR(st_template.st_mode)) {
-                       DIR *subdir = opendir(template);
-                       int baselen_sub = baselen + namelen;
-                       int template_baselen_sub = template_baselen + namelen;
-                       if (!subdir)
-                               die("cannot opendir %s", template);
-                       path[baselen_sub++] =
-                               template[template_baselen_sub++] = '/';
-                       path[baselen_sub] =
-                               template[template_baselen_sub] = 0;
-                       copy_templates_1(path, baselen_sub,
-                                        template, template_baselen_sub,
-                                        subdir);
-                       closedir(subdir);
-               }
-               else if (exists)
-                       continue;
-               else if (S_ISLNK(st_template.st_mode)) {
-                       char lnk[256];
-                       int len;
-                       len = readlink(template, lnk, sizeof(lnk));
-                       if (len < 0)
-                               die("cannot readlink %s", template);
-                       if (sizeof(lnk) <= len)
-                               die("insanely long symlink %s", template);
-                       lnk[len] = 0;
-                       if (symlink(lnk, path))
-                               die("cannot symlink %s %s", lnk, path);
-               }
-               else if (S_ISREG(st_template.st_mode)) {
-                       if (copy_file(path, template, st_template.st_mode))
-                               die("cannot copy %s to %s", template, path);
-               }
-               else
-                       error("ignoring template %s", template);
-       }
-}
-
-static void copy_templates(const char *git_dir, int len, char *template_dir)
-{
-       char path[PATH_MAX];
-       char template_path[PATH_MAX];
-       int template_len;
-       DIR *dir;
-
-       if (!template_dir)
-               template_dir = DEFAULT_GIT_TEMPLATE_DIR;
-       strcpy(template_path, template_dir);
-       template_len = strlen(template_path);
-       if (template_path[template_len-1] != '/') {
-               template_path[template_len++] = '/';
-               template_path[template_len] = 0;
-       }
-       dir = opendir(template_path);
-       if (!dir) {
-               fprintf(stderr, "warning: templates not found %s\n",
-                       template_dir);
-               return;
-       }
-
-       /* Make sure that template is from the correct vintage */
-       strcpy(template_path + template_len, "config");
-       repository_format_version = 0;
-       git_config_from_file(check_repository_format_version,
-                            template_path);
-       template_path[template_len] = 0;
-
-       if (repository_format_version &&
-           repository_format_version != GIT_REPO_VERSION) {
-               fprintf(stderr, "warning: not copying templates of "
-                       "a wrong format version %d from '%s'\n",
-                       repository_format_version,
-                       template_dir);
-               closedir(dir);
-               return;
-       }
-
-       memcpy(path, git_dir, len);
-       path[len] = 0;
-       copy_templates_1(path, len,
-                        template_path, template_len,
-                        dir);
-       closedir(dir);
-}
-
-static void create_default_files(const char *git_dir, char *template_path)
-{
-       unsigned len = strlen(git_dir);
-       static char path[PATH_MAX];
-       unsigned char sha1[20];
-       struct stat st1;
-       char repo_version_string[10];
-
-       if (len > sizeof(path)-50)
-               die("insane git directory %s", git_dir);
-       memcpy(path, git_dir, len);
-
-       if (len && path[len-1] != '/')
-               path[len++] = '/';
-
-       /*
-        * Create .git/refs/{heads,tags}
-        */
-       strcpy(path + len, "refs");
-       safe_create_dir(path, 1);
-       strcpy(path + len, "refs/heads");
-       safe_create_dir(path, 1);
-       strcpy(path + len, "refs/tags");
-       safe_create_dir(path, 1);
-
-       /* First copy the templates -- we might have the default
-        * config file there, in which case we would want to read
-        * from it after installing.
-        */
-       path[len] = 0;
-       copy_templates(path, len, template_path);
-
-       git_config(git_default_config);
-
-       /*
-        * Create the default symlink from ".git/HEAD" to the "master"
-        * branch, if it does not exist yet.
-        */
-       strcpy(path + len, "HEAD");
-       if (read_ref(path, sha1) < 0) {
-               if (create_symref(path, "refs/heads/master") < 0)
-                       exit(1);
-       }
-
-       /* This forces creation of new config file */
-       sprintf(repo_version_string, "%d", GIT_REPO_VERSION);
-       git_config_set("core.repositoryformatversion", repo_version_string);
-
-       path[len] = 0;
-       strcpy(path + len, "config");
-
-       /* Check filemode trustability */
-       if (!lstat(path, &st1)) {
-               struct stat st2;
-               int filemode = (!chmod(path, st1.st_mode ^ S_IXUSR) &&
-                               !lstat(path, &st2) &&
-                               st1.st_mode != st2.st_mode);
-               git_config_set("core.filemode",
-                              filemode ? "true" : "false");
-       }
-}
-
-static const char init_db_usage[] =
-"git-init-db [--template=<template-directory>] [--shared]";
-
-/*
- * If you want to, you can share the DB area with any number of branches.
- * That has advantages: you can save space by sharing all the SHA1 objects.
- * On the other hand, it might just make lookup slower and messier. You
- * be the judge.  The default case is to have one DB per managed directory.
- */
-int main(int argc, char **argv)
-{
-       const char *git_dir;
-       const char *sha1_dir;
-       char *path, *template_dir = NULL;
-       int len, i;
-
-       for (i = 1; i < argc; i++, argv++) {
-               char *arg = argv[1];
-               if (!strncmp(arg, "--template=", 11))
-                       template_dir = arg+11;
-               else if (!strcmp(arg, "--shared"))
-                       shared_repository = 1;
-               else
-                       die(init_db_usage);
-       }
-
-       /*
-        * Set up the default .git directory contents
-        */
-       git_dir = getenv(GIT_DIR_ENVIRONMENT);
-       if (!git_dir) {
-               git_dir = DEFAULT_GIT_DIR_ENVIRONMENT;
-               fprintf(stderr, "defaulting to local storage area\n");
-       }
-       safe_create_dir(git_dir, 0);
-
-       /* Check to see if the repository version is right.
-        * Note that a newly created repository does not have
-        * config file, so this will not fail.  What we are catching
-        * is an attempt to reinitialize new repository with an old tool.
-        */
-       check_repository_format();
-
-       create_default_files(git_dir, template_dir);
-
-       /*
-        * And set up the object store.
-        */
-       sha1_dir = get_object_directory();
-       len = strlen(sha1_dir);
-       path = xmalloc(len + 40);
-       memcpy(path, sha1_dir, len);
-
-       safe_create_dir(sha1_dir, 1);
-       strcpy(path+len, "/pack");
-       safe_create_dir(path, 1);
-       strcpy(path+len, "/info");
-       safe_create_dir(path, 1);
-
-       if (shared_repository)
-               git_config_set("core.sharedRepository", "true");
-
-       return 0;
-}
index e4ef200985030e8dee6f23dbe723bfa476160db0..f2b3bc1231b7fdfd7277974fc5a5708ceef9cbaf 100644 (file)
--- a/ls-tree.c
+++ b/ls-tree.c
@@ -142,8 +142,8 @@ int main(int argc, const char **argv)
 
        if (argc < 2)
                usage(ls_tree_usage);
-       if (get_sha1(argv[1], sha1) < 0)
-               usage(ls_tree_usage);
+       if (get_sha1(argv[1], sha1))
+               die("Not a valid object name %s", argv[1]);
 
        pathspec = get_pathspec(prefix, argv + 2);
        tree = parse_tree_indirect(sha1);
index 07f5ab4d1c72afeac5e3f193cefe91801ee9a9c9..4856ca01c33896843c366f3fb5edadd2ea3ced37 100644 (file)
@@ -82,8 +82,9 @@ static struct commit *interesting(struct commit_list *list)
  * commit B.
  *
  *
- * Another pathological example how this thing can fail to mark an ancestor
- * of a merge base as UNINTERESTING without the postprocessing phase.
+ * Another pathological example how this thing used to fail to mark an
+ * ancestor of a merge base as UNINTERESTING before we introduced the
+ * postprocessing phase (mark_reachable_commits).
  *
  *               2
  *               H
@@ -118,7 +119,9 @@ static struct commit *interesting(struct commit_list *list)
  *      D7                     2 3 7 7 3 2 1 2
  *      E7                     2 3 7 7 7 2 1 2
  *
- * and we end up showing E as an interesting merge base.
+ * and we ended up showing E as an interesting merge base.
+ * The postprocessing phase re-injects C and continues traversal
+ * to contaminate D and E.
  */
 
 static int show_all = 0;
@@ -247,10 +250,12 @@ int main(int argc, char **argv)
                        usage(merge_base_usage);
                argc--; argv++;
        }
-       if (argc != 3 ||
-           get_sha1(argv[1], rev1key) ||
-           get_sha1(argv[2], rev2key))
+       if (argc != 3)
                usage(merge_base_usage);
+       if (get_sha1(argv[1], rev1key))
+               die("Not a valid object name %s", argv[1]);
+       if (get_sha1(argv[2], rev2key))
+               die("Not a valid object name %s", argv[2]);
        rev1 = lookup_commit_reference(rev1key);
        rev2 = lookup_commit_reference(rev2key);
        if (!rev1 || !rev2)
index cc7b5bd891a213adcc18a44fb9d9ff6d7946cbb3..9dcaab7a85fdb63b2140923a95b216917bfc0993 100644 (file)
@@ -149,7 +149,7 @@ static void *get_tree_descriptor(struct tree_desc *desc, const char *rev)
        unsigned char sha1[20];
        void *buf;
 
-       if (get_sha1(rev, sha1) < 0)
+       if (get_sha1(rev, sha1))
                die("unknown rev %s", rev);
        buf = fill_tree_descriptor(desc, sha1);
        if (!buf)
index 53caed42dd2778e96cb39d8ba8b9cb175bdf1303..77284cfdbaef108676c95bd4d9771e40080fd406 100644 (file)
@@ -156,7 +156,7 @@ static void prepare_pack_revindex(struct pack_revindex *rix)
 
        rix->revindex = xmalloc(sizeof(unsigned long) * (num_ent + 1));
        for (i = 0; i < num_ent; i++) {
-               long hl = *((long *)(index + 24 * i));
+               unsigned int hl = *((unsigned int *)(index + 24 * i));
                rix->revindex[i] = ntohl(hl);
        }
        /* This knows the pack format -- the 20-byte trailer
@@ -994,6 +994,7 @@ static int type_size_sort(const struct object_entry *a, const struct object_entr
 struct unpacked {
        struct object_entry *entry;
        void *data;
+       struct delta_index *index;
 };
 
 /*
@@ -1004,61 +1005,59 @@ struct unpacked {
  * more importantly, the bigger file is likely the more recent
  * one.
  */
-static int try_delta(struct unpacked *cur, struct unpacked *old, unsigned max_depth)
+static int try_delta(struct unpacked *trg, struct unpacked *src,
+                    struct delta_index *src_index, unsigned max_depth)
 {
-       struct object_entry *cur_entry = cur->entry;
-       struct object_entry *old_entry = old->entry;
-       unsigned long size, oldsize, delta_size, sizediff;
-       long max_size;
+       struct object_entry *trg_entry = trg->entry;
+       struct object_entry *src_entry = src->entry;
+       unsigned long size, src_size, delta_size, sizediff, max_size;
        void *delta_buf;
 
        /* Don't bother doing diffs between different types */
-       if (cur_entry->type != old_entry->type)
+       if (trg_entry->type != src_entry->type)
                return -1;
 
        /* We do not compute delta to *create* objects we are not
         * going to pack.
         */
-       if (cur_entry->preferred_base)
+       if (trg_entry->preferred_base)
                return -1;
 
-       /* If the current object is at pack edge, take the depth the
+       /*
+        * 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 (cur_entry->delta_child) {
-               if (max_depth <= cur_entry->delta_limit)
+       if (trg_entry->delta_child) {
+               if (max_depth <= trg_entry->delta_limit)
                        return 0;
-               max_depth -= cur_entry->delta_limit;
+               max_depth -= trg_entry->delta_limit;
        }
-
-       if (old_entry->depth >= max_depth)
+       if (src_entry->depth >= max_depth)
                return 0;
 
-       /*
-        * NOTE!
-        *
-        * We always delta from the bigger to the smaller, since that's
-        * more space-efficient (deletes don't have to say _what_ they
-        * delete).
-        */
-       size = cur_entry->size;
-       max_size = size / 2 - 20;
-       if (cur_entry->delta)
-               max_size = cur_entry->delta_size-1;
-       oldsize = old_entry->size;
-       sizediff = oldsize < size ? size - oldsize : 0;
+       /* Now some size filtering heuristics. */
+       size = trg_entry->size;
+       max_size = 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 < size ? size - src_size : 0;
        if (sizediff >= max_size)
                return 0;
-       delta_buf = diff_delta(old->data, oldsize,
-                              cur->data, size, &delta_size, max_size);
+
+       delta_buf = create_delta(src_index, trg->data, size, &delta_size, max_size);
        if (!delta_buf)
                return 0;
-       cur_entry->delta = old_entry;
-       cur_entry->delta_size = delta_size;
-       cur_entry->depth = old_entry->depth + 1;
+
+       trg_entry->delta = src_entry;
+       trg_entry->delta_size = delta_size;
+       trg_entry->depth = src_entry->depth + 1;
        free(delta_buf);
-       return 0;
+       return 1;
 }
 
 static void progress_interval(int signum)
@@ -1108,12 +1107,14 @@ static void find_deltas(struct object_entry **list, int window, int depth)
 
                if (entry->size < 50)
                        continue;
-
+               free_delta_index(n->index);
+               n->index = NULL;
                free(n->data);
                n->entry = entry;
                n->data = read_sha1_file(entry->sha1, type, &size);
                if (size != entry->size)
-                       die("object %s inconsistent object length (%lu vs %lu)", sha1_to_hex(entry->sha1), size, entry->size);
+                       die("object %s inconsistent object length (%lu vs %lu)",
+                           sha1_to_hex(entry->sha1), size, entry->size);
 
                j = window;
                while (--j > 0) {
@@ -1124,18 +1125,20 @@ static void find_deltas(struct object_entry **list, int window, int depth)
                        m = array + other_idx;
                        if (!m->entry)
                                break;
-                       if (try_delta(n, m, depth) < 0)
+                       if (try_delta(n, m, m->index, depth) < 0)
                                break;
                }
-#if 0
                /* 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.
-                * ... in theory only; somehow this makes things worse.
                 */
                if (entry->delta && depth <= entry->depth)
                        continue;
-#endif
+
+               n->index = create_delta_index(n->data, size);
+               if (!n->index)
+                       die("out of memory");
+
                idx++;
                if (idx >= window)
                        idx = 0;
@@ -1144,8 +1147,10 @@ static void find_deltas(struct object_entry **list, int window, int depth)
        if (progress)
                fputc('\n', stderr);
 
-       for (i = 0; i < window; ++i)
+       for (i = 0; i < window; ++i) {
+               free_delta_index(array[i].index);
                free(array[i].data);
+       }
        free(array);
 }
 
index affd4f673d15657306acb74f2446d636a34c4fa5..8f318ed8aaf180419f97887501317fc1d2b54c09 100644 (file)
@@ -13,7 +13,7 @@
 #include <string.h>
 #include "delta.h"
 
-void *patch_delta(void *src_buf, unsigned long src_size,
+void *patch_delta(const void *src_buf, unsigned long src_size,
                  const void *delta_buf, unsigned long delta_size,
                  unsigned long *dst_size)
 {
index f97f92d90a6d6f8359dcb4c25988fe623fd4dd65..b95edcc14c2ae4094372f4ec307cdcfa1b8f24fe 100644 (file)
@@ -496,6 +496,123 @@ int add_cache_entry(struct cache_entry *ce, int option)
        return 0;
 }
 
+/* Three functions to allow overloaded pointer return; see linux/err.h */
+static inline void *ERR_PTR(long error)
+{
+       return (void *) error;
+}
+
+static inline long PTR_ERR(const void *ptr)
+{
+       return (long) ptr;
+}
+
+static inline long IS_ERR(const void *ptr)
+{
+       return (unsigned long)ptr > (unsigned long)-1000L;
+}
+
+/*
+ * "refresh" does not calculate a new sha1 file or bring the
+ * cache up-to-date for mode/content changes. But what it
+ * _does_ do is to "re-match" the stat information of a file
+ * with the cache, so that you can refresh the cache for a
+ * file that hasn't been changed but where the stat entry is
+ * out of date.
+ *
+ * For example, you'd want to do this after doing a "git-read-tree",
+ * to link up the stat cache details with the proper files.
+ */
+static struct cache_entry *refresh_entry(struct cache_entry *ce, int really)
+{
+       struct stat st;
+       struct cache_entry *updated;
+       int changed, size;
+
+       if (lstat(ce->name, &st) < 0)
+               return ERR_PTR(-errno);
+
+       changed = ce_match_stat(ce, &st, really);
+       if (!changed) {
+               if (really && assume_unchanged &&
+                   !(ce->ce_flags & htons(CE_VALID)))
+                       ; /* mark this one VALID again */
+               else
+                       return NULL;
+       }
+
+       if (ce_modified(ce, &st, really))
+               return ERR_PTR(-EINVAL);
+
+       size = ce_size(ce);
+       updated = xmalloc(size);
+       memcpy(updated, ce, size);
+       fill_stat_cache_info(updated, &st);
+
+       /* In this case, if really is not set, we should leave
+        * CE_VALID bit alone.  Otherwise, paths marked with
+        * --no-assume-unchanged (i.e. things to be edited) will
+        * reacquire CE_VALID bit automatically, which is not
+        * really what we want.
+        */
+       if (!really && assume_unchanged && !(ce->ce_flags & htons(CE_VALID)))
+               updated->ce_flags &= ~htons(CE_VALID);
+
+       return updated;
+}
+
+int refresh_cache(unsigned int flags)
+{
+       int i;
+       int has_errors = 0;
+       int really = (flags & REFRESH_REALLY) != 0;
+       int allow_unmerged = (flags & REFRESH_UNMERGED) != 0;
+       int quiet = (flags & REFRESH_QUIET) != 0;
+       int not_new = (flags & REFRESH_IGNORE_MISSING) != 0;
+
+       for (i = 0; i < active_nr; i++) {
+               struct cache_entry *ce, *new;
+               ce = active_cache[i];
+               if (ce_stage(ce)) {
+                       while ((i < active_nr) &&
+                              ! strcmp(active_cache[i]->name, ce->name))
+                               i++;
+                       i--;
+                       if (allow_unmerged)
+                               continue;
+                       printf("%s: needs merge\n", ce->name);
+                       has_errors = 1;
+                       continue;
+               }
+
+               new = refresh_entry(ce, really);
+               if (!new)
+                       continue;
+               if (IS_ERR(new)) {
+                       if (not_new && PTR_ERR(new) == -ENOENT)
+                               continue;
+                       if (really && PTR_ERR(new) == -EINVAL) {
+                               /* If we are doing --really-refresh that
+                                * means the index is not valid anymore.
+                                */
+                               ce->ce_flags &= ~htons(CE_VALID);
+                               active_cache_changed = 1;
+                       }
+                       if (quiet)
+                               continue;
+                       printf("%s: needs update\n", ce->name);
+                       has_errors = 1;
+                       continue;
+               }
+               active_cache_changed = 1;
+               /* You can NOT just free active_cache[i] here, since it
+                * might not be necessarily malloc()ed but can also come
+                * from mmap(). */
+               active_cache[i] = new;
+       }
+       return has_errors;
+}
+
 static int verify_hdr(struct cache_header *hdr, unsigned long size)
 {
        SHA_CTX c;
@@ -552,7 +669,7 @@ int read_cache(void)
 
        active_nr = ntohl(hdr->hdr_entries);
        active_alloc = alloc_nr(active_nr);
-       active_cache = calloc(active_alloc, sizeof(struct cache_entry *));
+       active_cache = xcalloc(active_alloc, sizeof(struct cache_entry *));
 
        offset = sizeof(*hdr);
        for (i = 0; i < active_nr; i++) {
index 26f4f7e32308d6e60d6a6e2c294bda322b34fc05..82e2a9a4d3663fad513f607e25fe84a8ccbf5460 100644 (file)
@@ -12,6 +12,7 @@
 #include <sys/time.h>
 #include <signal.h>
 
+static int reset = 0;
 static int merge = 0;
 static int update = 0;
 static int index_only = 0;
@@ -407,7 +408,7 @@ static void verify_uptodate(struct cache_entry *ce)
 {
        struct stat st;
 
-       if (index_only)
+       if (index_only || reset)
                return;
 
        if (!lstat(ce->name, &st)) {
@@ -416,11 +417,30 @@ static void verify_uptodate(struct cache_entry *ce)
                        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);
 }
 
+/*
+ * 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);
@@ -438,6 +458,9 @@ static int merged_entry(struct cache_entry *merge, struct cache_entry *old)
                        verify_uptodate(old);
                }
        }
+       else
+               verify_absent(merge->name, "overwritten");
+
        merge->ce_flags &= ~htons(CE_STAGEMASK);
        add_cache_entry(merge, ADD_CACHE_OK_TO_ADD);
        return 1;
@@ -447,6 +470,8 @@ 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);
        return 1;
@@ -482,6 +507,7 @@ static int threeway_merge(struct cache_entry **stages)
        int count;
        int head_match = 0;
        int remote_match = 0;
+       const char *path = NULL;
 
        int df_conflict_head = 0;
        int df_conflict_remote = 0;
@@ -493,8 +519,11 @@ static int threeway_merge(struct cache_entry **stages)
        for (i = 1; i < head_idx; i++) {
                if (!stages[i])
                        any_anc_missing = 1;
-               else
+               else {
+                       if (!path)
+                               path = stages[i]->name;
                        no_anc_exists = 0;
+               }
        }
 
        index = stages[0];
@@ -510,8 +539,15 @@ static int threeway_merge(struct cache_entry **stages)
                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. 
+        * and #14.
         */
        if (!same(remote, head)) {
                for (i = 1; i < head_idx; i++) {
@@ -570,6 +606,8 @@ static int threeway_merge(struct cache_entry **stages)
                    (remote_deleted && head && head_match)) {
                        if (index)
                                return deleted_entry(index, index);
+                       else if (path)
+                               verify_absent(path, "removed");
                        return 0;
                }
                /*
@@ -587,6 +625,8 @@ static int threeway_merge(struct cache_entry **stages)
        if (index) {
                verify_uptodate(index);
        }
+       else if (path)
+               verify_absent(path, "overwritten");
 
        nontrivial_merge = 1;
 
@@ -684,11 +724,17 @@ static int oneway_merge(struct cache_entry **src)
                             merge_size);
 
        if (!a)
-               return 0;
+               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, NULL);
+       return merged_entry(a, old);
 }
 
 static int read_cache_unmerged(void)
@@ -719,7 +765,7 @@ static struct cache_file cache_file;
 
 int main(int argc, char **argv)
 {
-       int i, newfd, reset, stage = 0;
+       int i, newfd, stage = 0;
        unsigned char sha1[20];
        merge_fn_t fn = NULL;
 
@@ -794,8 +840,8 @@ int main(int argc, char **argv)
                if (1 < index_only + update)
                        usage(read_tree_usage);
 
-               if (get_sha1(arg, sha1) < 0)
-                       usage(read_tree_usage);
+               if (get_sha1(arg, sha1))
+                       die("Not a valid object name %s", arg);
                if (list_tree(sha1) < 0)
                        die("failed to unpack tree object %s", arg);
                stage++;
diff --git a/refs.c b/refs.c
index 275b914b2b4cd17f26e85ab1ca5b32ea573acab4..0f3491f871bd692151b42307b833e633b041e948 100644 (file)
--- a/refs.c
+++ b/refs.c
@@ -114,7 +114,7 @@ int read_ref(const char *filename, unsigned char *sha1)
        return -1;
 }
 
-static int do_for_each_ref(const char *base, int (*fn)(const char *path, const unsigned char *sha1))
+static int do_for_each_ref(const char *base, int (*fn)(const char *path, const unsigned char *sha1), int trim)
 {
        int retval = 0;
        DIR *dir = opendir(git_path("%s", base));
@@ -146,7 +146,7 @@ static int do_for_each_ref(const char *base, int (*fn)(const char *path, const u
                        if (stat(git_path("%s", path), &st) < 0)
                                continue;
                        if (S_ISDIR(st.st_mode)) {
-                               retval = do_for_each_ref(path, fn);
+                               retval = do_for_each_ref(path, fn, trim);
                                if (retval)
                                        break;
                                continue;
@@ -160,7 +160,7 @@ static int do_for_each_ref(const char *base, int (*fn)(const char *path, const u
                                      "commit object!", path);
                                continue;
                        }
-                       retval = fn(path, sha1);
+                       retval = fn(path + trim, sha1);
                        if (retval)
                                break;
                }
@@ -180,7 +180,22 @@ int head_ref(int (*fn)(const char *path, const unsigned char *sha1))
 
 int for_each_ref(int (*fn)(const char *path, const unsigned char *sha1))
 {
-       return do_for_each_ref("refs", fn);
+       return do_for_each_ref("refs", fn, 0);
+}
+
+int for_each_tag_ref(int (*fn)(const char *path, const unsigned char *sha1))
+{
+       return do_for_each_ref("refs/tags", fn, 10);
+}
+
+int for_each_branch_ref(int (*fn)(const char *path, const unsigned char *sha1))
+{
+       return do_for_each_ref("refs/heads", fn, 11);
+}
+
+int for_each_remote_ref(int (*fn)(const char *path, const unsigned char *sha1))
+{
+       return do_for_each_ref("refs/remotes", fn, 13);
 }
 
 static char *ref_file_name(const char *ref)
@@ -205,12 +220,9 @@ static char *ref_lock_file_name(const char *ref)
 
 int get_ref_sha1(const char *ref, unsigned char *sha1)
 {
-       const char *filename;
-
        if (check_ref_format(ref))
                return -1;
-       filename = git_path("refs/%s", ref);
-       return read_ref(filename, sha1);
+       return read_ref(git_path("refs/%s", ref), sha1);
 }
 
 static int lock_ref_file(const char *filename, const char *lock_filename,
diff --git a/refs.h b/refs.h
index 26255967013c7fa4086681bba7636efb4b0157ec..fa816c1e9f58ca1ab1c1b434b01786a0f3b0a41e 100644 (file)
--- a/refs.h
+++ b/refs.h
@@ -7,6 +7,9 @@
  */
 extern int head_ref(int (*fn)(const char *path, const unsigned char *sha1));
 extern int for_each_ref(int (*fn)(const char *path, const unsigned char *sha1));
+extern int for_each_tag_ref(int (*fn)(const char *path, const unsigned char *sha1));
+extern int for_each_branch_ref(int (*fn)(const char *path, const unsigned char *sha1));
+extern int for_each_remote_ref(int (*fn)(const char *path, const unsigned char *sha1));
 
 /** Reads the refs file specified into sha1 **/
 extern int get_ref_sha1(const char *ref, unsigned char *sha1);
index 63eda1bb783fcb9ff72843e74383abb0f0581441..127afd784c1fcdb531c1d3435f724d0041151e90 100644 (file)
@@ -64,12 +64,13 @@ static int show_config(const char* key_, const char* value_)
 
 static int get_value(const char* key_, const char* regex_)
 {
-       int i;
+       char *tl;
 
-       key = malloc(strlen(key_)+1);
-       for (i = 0; key_[i]; i++)
-               key[i] = tolower(key_[i]);
-       key[i] = 0;
+       key = strdup(key_);
+       for (tl=key+strlen(key)-1; tl >= key && *tl != '.'; --tl)
+               *tl = tolower(*tl);
+       for (tl=key; *tl && *tl != '.'; ++tl)
+               *tl = tolower(*tl);
 
        if (use_key_regexp) {
                key_regexp = (regex_t*)malloc(sizeof(regex_t));
diff --git a/rev-list.c b/rev-list.c
deleted file mode 100644 (file)
index 235ae4c..0000000
+++ /dev/null
@@ -1,357 +0,0 @@
-#include "cache.h"
-#include "refs.h"
-#include "tag.h"
-#include "commit.h"
-#include "tree.h"
-#include "blob.h"
-#include "tree-walk.h"
-#include "diff.h"
-#include "revision.h"
-
-/* bits #0-15 in revision.h */
-
-#define COUNTED                (1u<<16)
-
-static const char rev_list_usage[] =
-"git-rev-list [OPTION] <commit-id>... [ -- paths... ]\n"
-"  limiting output:\n"
-"    --max-count=nr\n"
-"    --max-age=epoch\n"
-"    --min-age=epoch\n"
-"    --sparse\n"
-"    --no-merges\n"
-"    --remove-empty\n"
-"    --all\n"
-"  ordering output:\n"
-"    --topo-order\n"
-"    --date-order\n"
-"  formatting output:\n"
-"    --parents\n"
-"    --objects | --objects-edge\n"
-"    --unpacked\n"
-"    --header | --pretty\n"
-"    --abbrev=nr | --no-abbrev\n"
-"    --abbrev-commit\n"
-"  special purpose:\n"
-"    --bisect"
-;
-
-struct rev_info revs;
-
-static int bisect_list = 0;
-static int show_timestamp = 0;
-static int hdr_termination = 0;
-static const char *header_prefix;
-
-static void show_commit(struct commit *commit)
-{
-       if (show_timestamp)
-               printf("%lu ", commit->date);
-       if (header_prefix)
-               fputs(header_prefix, stdout);
-       if (commit->object.flags & BOUNDARY)
-               putchar('-');
-       if (revs.abbrev_commit && revs.abbrev)
-               fputs(find_unique_abbrev(commit->object.sha1, revs.abbrev),
-                     stdout);
-       else
-               fputs(sha1_to_hex(commit->object.sha1), stdout);
-       if (revs.parents) {
-               struct commit_list *parents = commit->parents;
-               while (parents) {
-                       struct object *o = &(parents->item->object);
-                       parents = parents->next;
-                       if (o->flags & TMP_MARK)
-                               continue;
-                       printf(" %s", sha1_to_hex(o->sha1));
-                       o->flags |= TMP_MARK;
-               }
-               /* TMP_MARK is a general purpose flag that can
-                * be used locally, but the user should clean
-                * things up after it is done with them.
-                */
-               for (parents = commit->parents;
-                    parents;
-                    parents = parents->next)
-                       parents->item->object.flags &= ~TMP_MARK;
-       }
-       if (revs.commit_format == CMIT_FMT_ONELINE)
-               putchar(' ');
-       else
-               putchar('\n');
-
-       if (revs.verbose_header) {
-               static char pretty_header[16384];
-               pretty_print_commit(revs.commit_format, commit, ~0,
-                                   pretty_header, sizeof(pretty_header),
-                                   revs.abbrev, NULL);
-               printf("%s%c", pretty_header, hdr_termination);
-       }
-       fflush(stdout);
-}
-
-static struct object_list **process_blob(struct blob *blob,
-                                        struct object_list **p,
-                                        struct name_path *path,
-                                        const char *name)
-{
-       struct object *obj = &blob->object;
-
-       if (!revs.blob_objects)
-               return p;
-       if (obj->flags & (UNINTERESTING | SEEN))
-               return p;
-       obj->flags |= SEEN;
-       return add_object(obj, p, path, name);
-}
-
-static struct object_list **process_tree(struct tree *tree,
-                                        struct object_list **p,
-                                        struct name_path *path,
-                                        const char *name)
-{
-       struct object *obj = &tree->object;
-       struct tree_entry_list *entry;
-       struct name_path me;
-
-       if (!revs.tree_objects)
-               return p;
-       if (obj->flags & (UNINTERESTING | SEEN))
-               return p;
-       if (parse_tree(tree) < 0)
-               die("bad tree object %s", sha1_to_hex(obj->sha1));
-       obj->flags |= SEEN;
-       p = add_object(obj, p, path, name);
-       me.up = path;
-       me.elem = name;
-       me.elem_len = strlen(name);
-       entry = tree->entries;
-       tree->entries = NULL;
-       while (entry) {
-               struct tree_entry_list *next = entry->next;
-               if (entry->directory)
-                       p = process_tree(entry->item.tree, p, &me, entry->name);
-               else
-                       p = process_blob(entry->item.blob, p, &me, entry->name);
-               free(entry);
-               entry = next;
-       }
-       return p;
-}
-
-static void show_commit_list(struct rev_info *revs)
-{
-       struct commit *commit;
-       struct object_list *objects = NULL, **p = &objects, *pending;
-
-       while ((commit = get_revision(revs)) != NULL) {
-               p = process_tree(commit->tree, p, NULL, "");
-               show_commit(commit);
-       }
-       for (pending = revs->pending_objects; pending; pending = pending->next) {
-               struct object *obj = pending->item;
-               const char *name = pending->name;
-               if (obj->flags & (UNINTERESTING | SEEN))
-                       continue;
-               if (obj->type == tag_type) {
-                       obj->flags |= SEEN;
-                       p = add_object(obj, p, NULL, name);
-                       continue;
-               }
-               if (obj->type == tree_type) {
-                       p = process_tree((struct tree *)obj, p, NULL, name);
-                       continue;
-               }
-               if (obj->type == blob_type) {
-                       p = process_blob((struct blob *)obj, p, NULL, name);
-                       continue;
-               }
-               die("unknown pending object %s (%s)", sha1_to_hex(obj->sha1), name);
-       }
-       while (objects) {
-               /* An object with name "foo\n0000000..." can be used to
-                * confuse downstream git-pack-objects very badly.
-                */
-               const char *ep = strchr(objects->name, '\n');
-               if (ep) {
-                       printf("%s %.*s\n", sha1_to_hex(objects->item->sha1),
-                              (int) (ep - objects->name),
-                              objects->name);
-               }
-               else
-                       printf("%s %s\n", sha1_to_hex(objects->item->sha1), objects->name);
-               objects = objects->next;
-       }
-}
-
-/*
- * This is a truly stupid algorithm, but it's only
- * used for bisection, and we just don't care enough.
- *
- * We care just barely enough to avoid recursing for
- * non-merge entries.
- */
-static int count_distance(struct commit_list *entry)
-{
-       int nr = 0;
-
-       while (entry) {
-               struct commit *commit = entry->item;
-               struct commit_list *p;
-
-               if (commit->object.flags & (UNINTERESTING | COUNTED))
-                       break;
-               if (!revs.prune_fn || (commit->object.flags & TREECHANGE))
-                       nr++;
-               commit->object.flags |= COUNTED;
-               p = commit->parents;
-               entry = p;
-               if (p) {
-                       p = p->next;
-                       while (p) {
-                               nr += count_distance(p);
-                               p = p->next;
-                       }
-               }
-       }
-
-       return nr;
-}
-
-static void clear_distance(struct commit_list *list)
-{
-       while (list) {
-               struct commit *commit = list->item;
-               commit->object.flags &= ~COUNTED;
-               list = list->next;
-       }
-}
-
-static struct commit_list *find_bisection(struct commit_list *list)
-{
-       int nr, closest;
-       struct commit_list *p, *best;
-
-       nr = 0;
-       p = list;
-       while (p) {
-               if (!revs.prune_fn || (p->item->object.flags & TREECHANGE))
-                       nr++;
-               p = p->next;
-       }
-       closest = 0;
-       best = list;
-
-       for (p = list; p; p = p->next) {
-               int distance;
-
-               if (revs.prune_fn && !(p->item->object.flags & TREECHANGE))
-                       continue;
-
-               distance = count_distance(p);
-               clear_distance(list);
-               if (nr - distance < distance)
-                       distance = nr - distance;
-               if (distance > closest) {
-                       best = p;
-                       closest = distance;
-               }
-       }
-       if (best)
-               best->next = NULL;
-       return best;
-}
-
-static void mark_edge_parents_uninteresting(struct commit *commit)
-{
-       struct commit_list *parents;
-
-       for (parents = commit->parents; parents; parents = parents->next) {
-               struct commit *parent = parents->item;
-               if (!(parent->object.flags & UNINTERESTING))
-                       continue;
-               mark_tree_uninteresting(parent->tree);
-               if (revs.edge_hint && !(parent->object.flags & SHOWN)) {
-                       parent->object.flags |= SHOWN;
-                       printf("-%s\n", sha1_to_hex(parent->object.sha1));
-               }
-       }
-}
-
-static void mark_edges_uninteresting(struct commit_list *list)
-{
-       for ( ; list; list = list->next) {
-               struct commit *commit = list->item;
-
-               if (commit->object.flags & UNINTERESTING) {
-                       mark_tree_uninteresting(commit->tree);
-                       continue;
-               }
-               mark_edge_parents_uninteresting(commit);
-       }
-}
-
-int main(int argc, const char **argv)
-{
-       struct commit_list *list;
-       int i;
-
-       init_revisions(&revs);
-       revs.abbrev = 0;
-       revs.commit_format = CMIT_FMT_UNSPECIFIED;
-       argc = setup_revisions(argc, argv, &revs, NULL);
-
-       for (i = 1 ; i < argc; i++) {
-               const char *arg = argv[i];
-
-               if (!strcmp(arg, "--header")) {
-                       revs.verbose_header = 1;
-                       continue;
-               }
-               if (!strcmp(arg, "--timestamp")) {
-                       show_timestamp = 1;
-                       continue;
-               }
-               if (!strcmp(arg, "--bisect")) {
-                       bisect_list = 1;
-                       continue;
-               }
-               usage(rev_list_usage);
-
-       }
-       if (revs.commit_format != CMIT_FMT_UNSPECIFIED) {
-               /* The command line has a --pretty  */
-               hdr_termination = '\n';
-               if (revs.commit_format == CMIT_FMT_ONELINE)
-                       header_prefix = "";
-               else
-                       header_prefix = "commit ";
-       }
-       else if (revs.verbose_header)
-               /* Only --header was specified */
-               revs.commit_format = CMIT_FMT_RAW;
-
-       list = revs.commits;
-
-       if ((!list &&
-            (!(revs.tag_objects||revs.tree_objects||revs.blob_objects) &&
-             !revs.pending_objects)) ||
-           revs.diff)
-               usage(rev_list_usage);
-
-       save_commit_buffer = revs.verbose_header;
-       track_object_refs = 0;
-       if (bisect_list)
-               revs.limited = 1;
-
-       prepare_revision_walk(&revs);
-       if (revs.tree_objects)
-               mark_edges_uninteresting(revs.commits);
-
-       if (bisect_list)
-               revs.commits = find_bisection(revs.commits);
-
-       show_commit_list(&revs);
-
-       return 0;
-}
index 62e16af33c29ddd6a9c8b2d9755dc11804d86bc4..4e2d9fbdf6f86e5d2ff28984861d443ca4cdc656 100644 (file)
@@ -36,6 +36,7 @@ static int is_rev_argument(const char *arg)
                "--all",
                "--bisect",
                "--dense",
+               "--branches",
                "--header",
                "--max-age=",
                "--max-count=",
@@ -45,7 +46,9 @@ static int is_rev_argument(const char *arg)
                "--objects-edge",
                "--parents",
                "--pretty",
+               "--remotes",
                "--sparse",
+               "--tags",
                "--topo-order",
                "--date-order",
                "--unpacked",
@@ -165,7 +168,7 @@ int main(int argc, char **argv)
        int i, as_is = 0, verify = 0;
        unsigned char sha1[20];
        const char *prefix = setup_git_directory();
-       
+
        git_config(git_default_config);
 
        for (i = 1; i < argc; i++) {
@@ -255,6 +258,18 @@ int main(int argc, char **argv)
                                for_each_ref(show_reference);
                                continue;
                        }
+                       if (!strcmp(arg, "--branches")) {
+                               for_each_branch_ref(show_reference);
+                               continue;
+                       }
+                       if (!strcmp(arg, "--tags")) {
+                               for_each_tag_ref(show_reference);
+                               continue;
+                       }
+                       if (!strcmp(arg, "--remotes")) {
+                               for_each_remote_ref(show_reference);
+                               continue;
+                       }
                        if (!strcmp(arg, "--show-prefix")) {
                                if (prefix)
                                        puts(prefix);
index f8ee38e54d52661cf91842e9f2fd14f74983a5d6..2294b16ea2aa0b508073e7800ccb5975a2254301 100644 (file)
@@ -794,7 +794,7 @@ int setup_revisions(int argc, const char **argv, struct rev_info *revs, const ch
                        local_flags = UNINTERESTING;
                        arg++;
                }
-               if (get_sha1(arg, sha1) < 0) {
+               if (get_sha1(arg, sha1)) {
                        int j;
 
                        if (seen_dashdash || local_flags)
@@ -820,7 +820,7 @@ int setup_revisions(int argc, const char **argv, struct rev_info *revs, const ch
        if (def && !revs->pending_objects) {
                unsigned char sha1[20];
                struct object *object;
-               if (get_sha1(def, sha1) < 0)
+               if (get_sha1(def, sha1))
                        die("bad default revision '%s'", def);
                object = get_reference(revs, def, sha1, 0);
                add_pending_object(revs, object, def);
index 54648282592d85cea0b1d42e02f358c240991ce2..223001033c30eed20d7c5ee59719bffd25036ded 100644 (file)
@@ -217,6 +217,8 @@ char *sha1_pack_index_name(const unsigned char *sha1)
 struct alternate_object_database *alt_odb_list;
 static struct alternate_object_database **alt_odb_tail;
 
+static void read_info_alternates(const char * alternates, int depth);
+
 /*
  * Prepare alternate object database registry.
  *
@@ -232,14 +234,85 @@ static struct alternate_object_database **alt_odb_tail;
  * SHA1, an extra slash for the first level indirection, and the
  * terminating NUL.
  */
-static void link_alt_odb_entries(const char *alt, const char *ep, int sep,
-                                const char *relative_base)
+static int link_alt_odb_entry(const char * entry, int len, const char * relative_base, int depth)
 {
-       const char *cp, *last;
-       struct alternate_object_database *ent;
+       struct stat st;
        const char *objdir = get_object_directory();
+       struct alternate_object_database *ent;
+       struct alternate_object_database *alt;
+       /* 43 = 40-byte + 2 '/' + terminating NUL */
+       int pfxlen = len;
+       int entlen = pfxlen + 43;
        int base_len = -1;
 
+       if (*entry != '/' && relative_base) {
+               /* Relative alt-odb */
+               if (base_len < 0)
+                       base_len = strlen(relative_base) + 1;
+               entlen += base_len;
+               pfxlen += base_len;
+       }
+       ent = xmalloc(sizeof(*ent) + entlen);
+
+       if (*entry != '/' && relative_base) {
+               memcpy(ent->base, relative_base, base_len - 1);
+               ent->base[base_len - 1] = '/';
+               memcpy(ent->base + base_len, entry, len);
+       }
+       else
+               memcpy(ent->base, entry, pfxlen);
+
+       ent->name = ent->base + pfxlen + 1;
+       ent->base[pfxlen + 3] = '/';
+       ent->base[pfxlen] = ent->base[entlen-1] = 0;
+
+       /* Detect cases where alternate disappeared */
+       if (stat(ent->base, &st) || !S_ISDIR(st.st_mode)) {
+               error("object directory %s does not exist; "
+                     "check .git/objects/info/alternates.",
+                     ent->base);
+               free(ent);
+               return -1;
+       }
+
+       /* Prevent the common mistake of listing the same
+        * thing twice, or object directory itself.
+        */
+       for (alt = alt_odb_list; alt; alt = alt->next) {
+               if (!memcmp(ent->base, alt->base, pfxlen)) {
+                       free(ent);
+                       return -1;
+               }
+       }
+       if (!memcmp(ent->base, objdir, pfxlen)) {
+               free(ent);
+               return -1;
+       }
+
+       /* add the alternate entry */
+       *alt_odb_tail = ent;
+       alt_odb_tail = &(ent->next);
+       ent->next = NULL;
+
+       /* recursively add alternates */
+       read_info_alternates(ent->base, depth + 1);
+
+       ent->base[pfxlen] = '/';
+
+       return 0;
+}
+
+static void link_alt_odb_entries(const char *alt, const char *ep, int sep,
+                                const char *relative_base, int depth)
+{
+       const char *cp, *last;
+
+       if (depth > 5) {
+               error("%s: ignoring alternate object stores, nesting too deep.",
+                               relative_base);
+               return;
+       }
+
        last = alt;
        while (last < ep) {
                cp = last;
@@ -249,60 +322,15 @@ static void link_alt_odb_entries(const char *alt, const char *ep, int sep,
                        last = cp + 1;
                        continue;
                }
-               for ( ; cp < ep && *cp != sep; cp++)
-                       ;
+               while (cp < ep && *cp != sep)
+                       cp++;
                if (last != cp) {
-                       struct stat st;
-                       struct alternate_object_database *alt;
-                       /* 43 = 40-byte + 2 '/' + terminating NUL */
-                       int pfxlen = cp - last;
-                       int entlen = pfxlen + 43;
-
-                       if (*last != '/' && relative_base) {
-                               /* Relative alt-odb */
-                               if (base_len < 0)
-                                       base_len = strlen(relative_base) + 1;
-                               entlen += base_len;
-                               pfxlen += base_len;
-                       }
-                       ent = xmalloc(sizeof(*ent) + entlen);
-
-                       if (*last != '/' && relative_base) {
-                               memcpy(ent->base, relative_base, base_len - 1);
-                               ent->base[base_len - 1] = '/';
-                               memcpy(ent->base + base_len,
-                                      last, cp - last);
-                       }
-                       else
-                               memcpy(ent->base, last, pfxlen);
-
-                       ent->name = ent->base + pfxlen + 1;
-                       ent->base[pfxlen + 3] = '/';
-                       ent->base[pfxlen] = ent->base[entlen-1] = 0;
-
-                       /* Detect cases where alternate disappeared */
-                       if (stat(ent->base, &st) || !S_ISDIR(st.st_mode)) {
-                               error("object directory %s does not exist; "
-                                     "check .git/objects/info/alternates.",
-                                     ent->base);
-                               goto bad;
-                       }
-                       ent->base[pfxlen] = '/';
-
-                       /* Prevent the common mistake of listing the same
-                        * thing twice, or object directory itself.
-                        */
-                       for (alt = alt_odb_list; alt; alt = alt->next)
-                               if (!memcmp(ent->base, alt->base, pfxlen))
-                                       goto bad;
-                       if (!memcmp(ent->base, objdir, pfxlen)) {
-                       bad:
-                               free(ent);
-                       }
-                       else {
-                               *alt_odb_tail = ent;
-                               alt_odb_tail = &(ent->next);
-                               ent->next = NULL;
+                       if ((*last != '/') && depth) {
+                               error("%s: ignoring relative alternate object store %s",
+                                               relative_base, last);
+                       } else {
+                               link_alt_odb_entry(last, cp - last,
+                                               relative_base, depth);
                        }
                }
                while (cp < ep && *cp == sep)
@@ -311,23 +339,14 @@ static void link_alt_odb_entries(const char *alt, const char *ep, int sep,
        }
 }
 
-void prepare_alt_odb(void)
+static void read_info_alternates(const char * relative_base, int depth)
 {
-       char path[PATH_MAX];
        char *map;
-       int fd;
        struct stat st;
-       char *alt;
-
-       alt = getenv(ALTERNATE_DB_ENVIRONMENT);
-       if (!alt) alt = "";
-
-       if (alt_odb_tail)
-               return;
-       alt_odb_tail = &alt_odb_list;
-       link_alt_odb_entries(alt, alt + strlen(alt), ':', NULL);
+       char path[PATH_MAX];
+       int fd;
 
-       sprintf(path, "%s/info/alternates", get_object_directory());
+       sprintf(path, "%s/info/alternates", relative_base);
        fd = open(path, O_RDONLY);
        if (fd < 0)
                return;
@@ -340,11 +359,26 @@ void prepare_alt_odb(void)
        if (map == MAP_FAILED)
                return;
 
-       link_alt_odb_entries(map, map + st.st_size, '\n',
-                            get_object_directory());
+       link_alt_odb_entries(map, map + st.st_size, '\n', relative_base, depth);
+
        munmap(map, st.st_size);
 }
 
+void prepare_alt_odb(void)
+{
+       char *alt;
+
+       alt = getenv(ALTERNATE_DB_ENVIRONMENT);
+       if (!alt) alt = "";
+
+       if (alt_odb_tail)
+               return;
+       alt_odb_tail = &alt_odb_list;
+       link_alt_odb_entries(alt, alt + strlen(alt), ':', NULL, 0);
+
+       read_info_alternates(get_object_directory(), 0);
+}
+
 static char *find_sha1_file(const unsigned char *sha1, struct stat *st)
 {
        char *name = sha1_file_name(sha1);
@@ -1127,7 +1161,7 @@ int find_pack_entry_one(const unsigned char *sha1,
                int mi = (lo + hi) / 2;
                int cmp = memcmp(index + 24 * mi + 4, sha1, 20);
                if (!cmp) {
-                       e->offset = ntohl(*((int*)(index + 24 * mi)));
+                       e->offset = ntohl(*((unsigned int *)(index + 24 * mi)));
                        memcpy(e->sha1, sha1, 20);
                        e->p = p;
                        return 1;
index 345935bb2beddac7b86d5b989ea1492f58a777d8..dc6835520ccfd4838b47a4af81ccf139f55e1801 100644 (file)
@@ -458,17 +458,56 @@ int get_sha1(const char *name, unsigned char *sha1)
 {
        int ret;
        unsigned unused;
+       int namelen = strlen(name);
+       const char *cp;
 
        prepare_alt_odb();
-       ret = get_sha1_1(name, strlen(name), sha1);
-       if (ret < 0) {
-               const char *cp = strchr(name, ':');
-               if (cp) {
-                       unsigned char tree_sha1[20];
-                       if (!get_sha1_1(name, cp-name, tree_sha1))
-                               return get_tree_entry(tree_sha1, cp+1, sha1,
-                                                     &unused);
+       ret = get_sha1_1(name, namelen, sha1);
+       if (!ret)
+               return ret;
+       /* sha1:path --> object name of path in ent sha1
+        * :path -> object name of path in index
+        * :[0-3]:path -> object name of path in index at stage
+        */
+       if (name[0] == ':') {
+               int stage = 0;
+               struct cache_entry *ce;
+               int pos;
+               if (namelen < 3 ||
+                   name[2] != ':' ||
+                   name[1] < '0' || '3' < name[1])
+                       cp = name + 1;
+               else {
+                       stage = name[1] - '0';
+                       cp = name + 3;
                }
+               namelen = namelen - (cp - name);
+               if (!active_cache)
+                       read_cache();
+               if (active_nr < 0)
+                       return -1;
+               pos = cache_name_pos(cp, namelen);
+               if (pos < 0)
+                       pos = -pos - 1;
+               while (pos < active_nr) {
+                       ce = active_cache[pos];
+                       if (ce_namelen(ce) != namelen ||
+                           memcmp(ce->name, cp, namelen))
+                               break;
+                       if (ce_stage(ce) == stage) {
+                               memcpy(sha1, ce->sha1, 20);
+                               return 0;
+                       }
+                       pos++;
+               }
+               return -1;
+       }
+       cp = strchr(name, ':');
+       if (cp) {
+               unsigned char tree_sha1[20];
+               if (!get_sha1_1(name, cp-name, tree_sha1))
+                       return get_tree_entry(tree_sha1, cp+1, sha1,
+                                             &unused);
        }
        return ret;
 }
index b675a0b1f1df7d313f8201d59ad25b1c3d53a2f4..2da66618fcdd6a0f5af35c9f30554a65eb427427 100644 (file)
@@ -134,7 +134,7 @@ int main(int argc, char **argv)
        commit_id = argv[arg];
        url = argv[arg + 1];
        if (get_sha1(commit_id, sha1))
-               usage(ssh_push_usage);
+               die("Not a valid object name %s", commit_id);
        memcpy(hex, sha1_to_hex(sha1), sizeof(hex));
        argv[arg] = hex;
 
index 4d175d8ea1d7a83d0b77cc0bf0e62f9638d40d89..8335a63e2e020ac16f3696122d59bec9b1ac99b4 100755 (executable)
@@ -39,7 +39,6 @@ test_expect_success \
      echo nitfol >nitfol &&
      echo bozbar >bozbar &&
      echo rezrov >rezrov &&
-     echo yomin >yomin &&
      git-update-index --add nitfol bozbar rezrov &&
      treeH=`git-write-tree` &&
      echo treeH $treeH &&
@@ -56,7 +55,8 @@ test_expect_success \
 
 test_expect_success \
     '1, 2, 3 - no carry forward' \
-    'rm -f .git/index &&
+    'rm -f .git/index nitfol bozbar rezrov frotz &&
+     git-read-tree --reset -u $treeH &&
      git-read-tree -m -u $treeH $treeM &&
      git-ls-files --stage >1-3.out &&
      cmp M.out 1-3.out &&
@@ -66,11 +66,12 @@ test_expect_success \
      check_cache_at frotz clean &&
      check_cache_at nitfol clean'
 
-echo '+100644 X 0      yomin' >expected
-
 test_expect_success \
     '4 - carry forward local addition.' \
-    'rm -f .git/index &&
+    'rm -f .git/index nitfol bozbar rezrov frotz &&
+     git-read-tree --reset -u $treeH &&
+     echo "+100644 X 0 yomin" >expected &&
+     echo yomin >yomin &&
      git-update-index --add yomin &&
      git-read-tree -m -u $treeH $treeM &&
      git-ls-files --stage >4.out || return 1
@@ -85,7 +86,9 @@ test_expect_success \
 
 test_expect_success \
     '5 - carry forward local addition.' \
-    'rm -f .git/index &&
+    'rm -f .git/index nitfol bozbar rezrov frotz &&
+     git-read-tree --reset -u $treeH &&
+     git-read-tree -m -u $treeH &&
      echo yomin >yomin &&
      git-update-index --add yomin &&
      echo yomin yomin >yomin &&
@@ -103,7 +106,9 @@ test_expect_success \
 
 test_expect_success \
     '6 - local addition already has the same.' \
-    'rm -f .git/index &&
+    'rm -f .git/index nitfol bozbar rezrov frotz &&
+     git-read-tree --reset -u $treeH &&
+     echo frotz >frotz &&
      git-update-index --add frotz &&
      git-read-tree -m -u $treeH $treeM &&
      git-ls-files --stage >6.out &&
@@ -117,7 +122,8 @@ test_expect_success \
 
 test_expect_success \
     '7 - local addition already has the same.' \
-    'rm -f .git/index &&
+    'rm -f .git/index nitfol bozbar rezrov frotz &&
+     git-read-tree --reset -u $treeH &&
      echo frotz >frotz &&
      git-update-index --add frotz &&
      echo frotz frotz >frotz &&
@@ -134,14 +140,16 @@ test_expect_success \
 
 test_expect_success \
     '8 - conflicting addition.' \
-    'rm -f .git/index &&
+    'rm -f .git/index nitfol bozbar rezrov frotz &&
+     git-read-tree --reset -u $treeH &&
      echo frotz frotz >frotz &&
      git-update-index --add frotz &&
      if git-read-tree -m -u $treeH $treeM; then false; else :; fi'
 
 test_expect_success \
     '9 - conflicting addition.' \
-    'rm -f .git/index &&
+    'rm -f .git/index nitfol bozbar rezrov frotz &&
+     git-read-tree --reset -u $treeH &&
      echo frotz frotz >frotz &&
      git-update-index --add frotz &&
      echo frotz >frotz &&
@@ -149,7 +157,8 @@ test_expect_success \
 
 test_expect_success \
     '10 - path removed.' \
-    'rm -f .git/index &&
+    'rm -f .git/index nitfol bozbar rezrov frotz &&
+     git-read-tree --reset -u $treeH &&
      echo rezrov >rezrov &&
      git-update-index --add rezrov &&
      git-read-tree -m -u $treeH $treeM &&
@@ -160,7 +169,8 @@ test_expect_success \
 
 test_expect_success \
     '11 - dirty path removed.' \
-    'rm -f .git/index &&
+    'rm -f .git/index nitfol bozbar rezrov frotz &&
+     git-read-tree --reset -u $treeH &&
      echo rezrov >rezrov &&
      git-update-index --add rezrov &&
      echo rezrov rezrov >rezrov &&
@@ -168,14 +178,16 @@ test_expect_success \
 
 test_expect_success \
     '12 - unmatching local changes being removed.' \
-    'rm -f .git/index &&
+    'rm -f .git/index nitfol bozbar rezrov frotz &&
+     git-read-tree --reset -u $treeH &&
      echo rezrov rezrov >rezrov &&
      git-update-index --add rezrov &&
      if git-read-tree -m -u $treeH $treeM; then false; else :; fi'
 
 test_expect_success \
     '13 - unmatching local changes being removed.' \
-    'rm -f .git/index &&
+    'rm -f .git/index nitfol bozbar rezrov frotz &&
+     git-read-tree --reset -u $treeH &&
      echo rezrov rezrov >rezrov &&
      git-update-index --add rezrov &&
      echo rezrov >rezrov &&
@@ -188,7 +200,8 @@ EOF
 
 test_expect_success \
     '14 - unchanged in two heads.' \
-    'rm -f .git/index &&
+    'rm -f .git/index nitfol bozbar rezrov frotz &&
+     git-read-tree --reset -u $treeH &&
      echo nitfol nitfol >nitfol &&
      git-update-index --add nitfol &&
      git-read-tree -m -u $treeH $treeM &&
@@ -207,7 +220,8 @@ test_expect_success \
 
 test_expect_success \
     '15 - unchanged in two heads.' \
-    'rm -f .git/index &&
+    'rm -f .git/index nitfol bozbar rezrov frotz &&
+     git-read-tree --reset -u $treeH &&
      echo nitfol nitfol >nitfol &&
      git-update-index --add nitfol &&
      echo nitfol nitfol nitfol >nitfol &&
@@ -227,14 +241,16 @@ test_expect_success \
 
 test_expect_success \
     '16 - conflicting local change.' \
-    'rm -f .git/index &&
+    'rm -f .git/index nitfol bozbar rezrov frotz &&
+     git-read-tree --reset -u $treeH &&
      echo bozbar bozbar >bozbar &&
      git-update-index --add bozbar &&
      if git-read-tree -m -u $treeH $treeM; then false; else :; fi'
 
 test_expect_success \
     '17 - conflicting local change.' \
-    'rm -f .git/index &&
+    'rm -f .git/index nitfol bozbar rezrov frotz &&
+     git-read-tree --reset -u $treeH &&
      echo bozbar bozbar >bozbar &&
      git-update-index --add bozbar &&
      echo bozbar bozbar bozbar >bozbar &&
@@ -242,7 +258,8 @@ test_expect_success \
 
 test_expect_success \
     '18 - local change already having a good result.' \
-    'rm -f .git/index &&
+    'rm -f .git/index nitfol bozbar rezrov frotz &&
+     git-read-tree --reset -u $treeH &&
      echo gnusto >bozbar &&
      git-update-index --add bozbar &&
      git-read-tree -m -u $treeH $treeM &&
@@ -254,7 +271,8 @@ test_expect_success \
 
 test_expect_success \
     '19 - local change already having a good result, further modified.' \
-    'rm -f .git/index &&
+    'rm -f .git/index nitfol bozbar rezrov frotz &&
+     git-read-tree --reset -u $treeH &&
      echo gnusto >bozbar &&
      git-update-index --add bozbar &&
      echo gnusto gnusto >bozbar &&
@@ -273,7 +291,8 @@ test_expect_success \
 
 test_expect_success \
     '20 - no local change, use new tree.' \
-    'rm -f .git/index &&
+    'rm -f .git/index nitfol bozbar rezrov frotz &&
+     git-read-tree --reset -u $treeH &&
      echo bozbar >bozbar &&
      git-update-index --add bozbar &&
      git-read-tree -m -u $treeH $treeM &&
@@ -285,7 +304,8 @@ test_expect_success \
 
 test_expect_success \
     '21 - no local change, dirty cache.' \
-    'rm -f .git/index &&
+    'rm -f .git/index nitfol bozbar rezrov frotz &&
+     git-read-tree --reset -u $treeH &&
      echo bozbar >bozbar &&
      git-update-index --add bozbar &&
      echo gnusto gnusto >bozbar &&
@@ -294,7 +314,7 @@ test_expect_success \
 # Also make sure we did not break DF vs DF/DF case.
 test_expect_success \
     'DF vs DF/DF case setup.' \
-    'rm -f .git/index &&
+    'rm -f .git/index
      echo DF >DF &&
      git-update-index --add DF &&
      treeDF=`git-write-tree` &&
index 7090ea92c1ace40079493447d12fc61da416cb9c..8260d57b63d7f988a4c236d99ce2c9931a67c5e3 100755 (executable)
@@ -229,7 +229,7 @@ test_expect_failure 'invalid key' 'git-repo-config inval.2key blabla'
 test_expect_success 'correct key' 'git-repo-config 123456.a123 987'
 
 test_expect_success 'hierarchical section' \
-       'git-repo-config 1.2.3.alpha beta'
+       'git-repo-config Version.1.2.3eX.Alpha beta'
 
 cat > expect << EOF
 [beta] ; silly comment # another comment
@@ -241,8 +241,8 @@ noIndent= sillyValue ; 'nother silly comment
        NoNewLine = wow2 for me
 [123456]
        a123 = 987
-[1.2.3]
-       alpha = beta
+[Version "1.2.3eX"]
+       Alpha = beta
 EOF
 
 test_expect_success 'hierarchical section value' 'cmp .git/config expect'
@@ -251,7 +251,7 @@ cat > expect << EOF
 beta.noindent=sillyValue
 nextsection.nonewline=wow2 for me
 123456.a123=987
-1.2.3.alpha=beta
+version.1.2.3eX.alpha=beta
 EOF
 
 test_expect_success 'working --list' \
diff --git a/t/t2101-update-index-reupdate.sh b/t/t2101-update-index-reupdate.sh
new file mode 100755 (executable)
index 0000000..77aed8d
--- /dev/null
@@ -0,0 +1,82 @@
+#!/bin/sh
+#
+# Copyright (c) 2006 Junio C Hamano
+#
+
+test_description='git-update-index --again test.
+'
+
+. ./test-lib.sh
+
+test_expect_success 'update-index --add' \
+       'echo hello world >file1 &&
+        echo goodbye people >file2 &&
+        git-update-index --add file1 file2 &&
+        git-ls-files -s >current &&
+        cmp current - <<\EOF
+100644 3b18e512dba79e4c8300dd08aeb37f8e728b8dad 0      file1
+100644 9db8893856a8a02eaa73470054b7c1c5a7c82e47 0      file2
+EOF'
+
+test_expect_success 'update-index --again' \
+       'rm -f file1 &&
+       echo hello everybody >file2 &&
+       if git-update-index --again
+       then
+               echo should have refused to remove file1
+               exit 1
+       else
+               echo happy - failed as expected
+       fi &&
+        git-ls-files -s >current &&
+        cmp current - <<\EOF
+100644 3b18e512dba79e4c8300dd08aeb37f8e728b8dad 0      file1
+100644 9db8893856a8a02eaa73470054b7c1c5a7c82e47 0      file2
+EOF'
+
+test_expect_success 'update-index --remove --again' \
+       'git-update-index --remove --again &&
+        git-ls-files -s >current &&
+        cmp current - <<\EOF
+100644 0f1ae1422c2bf43f117d3dbd715c988a9ed2103f 0      file2
+EOF'
+
+test_expect_success 'first commit' 'git-commit -m initial'
+
+test_expect_success 'update-index again' \
+       'mkdir -p dir1 &&
+       echo hello world >dir1/file3 &&
+       echo goodbye people >file2 &&
+       git-update-index --add file2 dir1/file3 &&
+       echo hello everybody >file2
+       echo happy >dir1/file3 &&
+       git-update-index --again &&
+       git-ls-files -s >current &&
+       cmp current - <<\EOF
+100644 53ab446c3f4e42ce9bb728a0ccb283a101be4979 0      dir1/file3
+100644 0f1ae1422c2bf43f117d3dbd715c988a9ed2103f 0      file2
+EOF'
+
+test_expect_success 'update-index --update from subdir' \
+       'echo not so happy >file2 &&
+       cd dir1 &&
+       cat ../file2 >file3 &&
+       git-update-index --again &&
+       cd .. &&
+       git-ls-files -s >current &&
+       cmp current - <<\EOF
+100644 d7fb3f695f06c759dbf3ab00046e7cc2da22d10f 0      dir1/file3
+100644 0f1ae1422c2bf43f117d3dbd715c988a9ed2103f 0      file2
+EOF'
+
+test_expect_success 'update-index --update with pathspec' \
+       'echo very happy >file2 &&
+       cat file2 >dir1/file3 &&
+       git-update-index --again dir1/ &&
+       git-ls-files -s >current &&
+       cmp current - <<\EOF
+100644 594fb5bb1759d90998e2bf2a38261ae8e243c760 0      dir1/file3
+100644 0f1ae1422c2bf43f117d3dbd715c988a9ed2103f 0      file2
+EOF'
+
+test_done
index b141f89de2be4a2fa6ff1f3b0748daece23f9d8a..e83bbee07402d864a7241d4edbf5d393dcccdd4a 100755 (executable)
@@ -30,6 +30,7 @@ test_expect_success \
      git-commit -m "Add C." &&
 
      git-checkout -f master &&
+     rm -f B C &&
 
      echo Third >> A &&
      git-update-index A &&
index 769274aa5111c8d1a95af62fc0d0b29235d53f1f..56eda63fc2f442a57fbe1f3877f17744b6c114d1 100755 (executable)
@@ -191,7 +191,7 @@ test_expect_success \
     'rm -fr Z [A-Z][A-Z] &&
      git-read-tree $tree_A &&
      git-checkout-index -f -a &&
-     git-read-tree -m $tree_O || return 1
+     git-read-tree --reset $tree_O || return 1
      git-update-index --refresh >/dev/null ;# this can exit non-zero
      git-diff-files >.test-a &&
      cmp_diff_files_output .test-a .test-recursive-OA'
@@ -201,7 +201,7 @@ test_expect_success \
     'rm -fr Z [A-Z][A-Z] &&
      git-read-tree $tree_B &&
      git-checkout-index -f -a &&
-     git-read-tree -m $tree_O || return 1
+     git-read-tree --reset $tree_O || return 1
      git-update-index --refresh >/dev/null ;# this can exit non-zero
      git-diff-files >.test-a &&
      cmp_diff_files_output .test-a .test-recursive-OB'
@@ -211,7 +211,7 @@ test_expect_success \
     'rm -fr Z [A-Z][A-Z] &&
      git-read-tree $tree_B &&
      git-checkout-index -f -a &&
-     git-read-tree -m $tree_A || return 1
+     git-read-tree --reset $tree_A || return 1
      git-update-index --refresh >/dev/null ;# this can exit non-zero
      git-diff-files >.test-a &&
      cmp_diff_files_output .test-a .test-recursive-AB'
diff --git a/t/t4012-diff-binary.sh b/t/t4012-diff-binary.sh
new file mode 100755 (executable)
index 0000000..bdd95c0
--- /dev/null
@@ -0,0 +1,85 @@
+#!/bin/sh
+#
+# Copyright (c) 2006 Junio C Hamano
+#
+
+test_description='Binary diff and apply
+'
+
+. ./test-lib.sh
+
+test_expect_success 'prepare repository' \
+       'echo AIT >a && echo BIT >b && echo CIT >c && echo DIT >d &&
+        git-update-index --add a b c d &&
+        echo git >a &&
+        cat ../test4012.png >b &&
+        echo git >c &&
+        cat b b >d'
+
+test_expect_success 'diff without --binary' \
+       'git-diff | git-apply --stat --summary >current &&
+        cmp current - <<\EOF
+ a |    2 +-
+ b |  Bin
+ c |    2 +-
+ d |  Bin
+ 4 files changed, 2 insertions(+), 2 deletions(-)
+EOF'
+
+test_expect_success 'diff with --binary' \
+       'git-diff --binary | git-apply --stat --summary >current &&
+        cmp current - <<\EOF
+ a |    2 +-
+ b |  Bin
+ c |    2 +-
+ d |  Bin
+ 4 files changed, 2 insertions(+), 2 deletions(-)
+EOF'
+
+# apply needs to be able to skip the binary material correctly
+# in order to report the line number of a corrupt patch.
+test_expect_success 'apply detecting corrupt patch correctly' \
+       'git-diff | sed -e 's/-CIT/xCIT/' >broken &&
+        if git-apply --stat --summary broken 2>detected
+        then
+               echo unhappy - should have detected an error
+               (exit 1)
+        else
+               echo happy
+        fi &&
+        detected=`cat detected` &&
+        detected=`expr "$detected" : "fatal.*at line \\([0-9]*\\)\$"` &&
+        detected=`sed -ne "${detected}p" broken` &&
+        test "$detected" = xCIT'
+
+test_expect_success 'apply detecting corrupt patch correctly' \
+       'git-diff --binary | sed -e 's/-CIT/xCIT/' >broken &&
+        if git-apply --stat --summary broken 2>detected
+        then
+               echo unhappy - should have detected an error
+               (exit 1)
+        else
+               echo happy
+        fi &&
+        detected=`cat detected` &&
+        detected=`expr "$detected" : "fatal.*at line \\([0-9]*\\)\$"` &&
+        detected=`sed -ne "${detected}p" broken` &&
+        test "$detected" = xCIT'
+
+test_expect_success 'initial commit' 'git-commit -a -m initial'
+
+# Try removal (b), modification (d), and creation (e).
+test_expect_success 'diff-index with --binary' \
+       'echo AIT >a && mv b e && echo CIT >c && cat e >d &&
+        git-update-index --add --remove a b c d e &&
+        tree0=`git-write-tree` &&
+        git-diff --cached --binary >current &&
+        git-apply --stat --summary current'
+
+test_expect_success 'apply binary patch' \
+       'git-reset --hard &&
+        git-apply --binary --index <current &&
+        tree1=`git-write-tree` &&
+        test "$tree1" = "$tree0"'
+
+test_done
diff --git a/t/t5700-clone-reference.sh b/t/t5700-clone-reference.sh
new file mode 100755 (executable)
index 0000000..916ee15
--- /dev/null
@@ -0,0 +1,78 @@
+#!/bin/sh
+#
+# Copyright (C) 2006 Martin Waitz <tali@admingilde.org>
+#
+
+test_description='test clone --reference'
+. ./test-lib.sh
+
+base_dir=`pwd`
+
+test_expect_success 'preparing first repository' \
+'test_create_repo A && cd A &&
+echo first > file1 &&
+git add file1 &&
+git commit -m initial'
+
+cd "$base_dir"
+
+test_expect_success 'preparing second repository' \
+'git clone A B && cd B &&
+echo second > file2 &&
+git add file2 &&
+git commit -m addition &&
+git repack -a -d &&
+git prune'
+
+cd "$base_dir"
+
+test_expect_success 'cloning with reference' \
+'git clone -l -s --reference B A C'
+
+cd "$base_dir"
+
+test_expect_success 'existance of info/alternates' \
+'test `wc -l <C/.git/objects/info/alternates` = 2'
+
+cd "$base_dir"
+
+test_expect_success 'pulling from reference' \
+'cd C &&
+git pull ../B'
+
+cd "$base_dir"
+
+test_expect_success 'that reference gets used' \
+'cd C &&
+echo "0 objects, 0 kilobytes" > expected &&
+git count-objects > current &&
+diff expected current'
+
+cd "$base_dir"
+
+test_expect_success 'updating origin' \
+'cd A &&
+echo third > file3 &&
+git add file3 &&
+git commit -m update &&
+git repack -a -d &&
+git prune'
+
+cd "$base_dir"
+
+test_expect_success 'pulling changes from origin' \
+'cd C &&
+git pull origin'
+
+cd "$base_dir"
+
+# the 2 local objects are commit and tree from the merge
+test_expect_success 'that alternate to origin gets used' \
+'cd C &&
+echo "2 objects" > expected &&
+git count-objects | cut -d, -f1 > current &&
+diff expected current'
+
+cd "$base_dir"
+
+test_done
diff --git a/t/t5710-info-alternate.sh b/t/t5710-info-alternate.sh
new file mode 100755 (executable)
index 0000000..097d037
--- /dev/null
@@ -0,0 +1,105 @@
+#!/bin/sh
+#
+# Copyright (C) 2006 Martin Waitz <tali@admingilde.org>
+#
+
+test_description='test transitive info/alternate entries'
+. ./test-lib.sh
+
+# test that a file is not reachable in the current repository
+# but that it is after creating a info/alternate entry
+reachable_via() {
+       alternate="$1"
+       file="$2"
+       if git cat-file -e "HEAD:$file"; then return 1; fi
+       echo "$alternate" >> .git/objects/info/alternate
+       git cat-file -e "HEAD:$file"
+}
+
+test_valid_repo() {
+       git fsck-objects --full > fsck.log &&
+       test `wc -l < fsck.log` = 0
+}
+
+base_dir=`pwd`
+
+test_expect_success 'preparing first repository' \
+'test_create_repo A && cd A &&
+echo "Hello World" > file1 &&
+git add file1 &&
+git commit -m "Initial commit" file1 &&
+git repack -a -d &&
+git prune'
+
+cd "$base_dir"
+
+test_expect_success 'preparing second repository' \
+'git clone -l -s A B && cd B &&
+echo "foo bar" > file2 &&
+git add file2 &&
+git commit -m "next commit" file2 &&
+git repack -a -d -l &&
+git prune'
+
+cd "$base_dir"
+
+test_expect_success 'preparing third repository' \
+'git clone -l -s B C && cd C &&
+echo "Goodbye, cruel world" > file3 &&
+git add file3 &&
+git commit -m "one more" file3 &&
+git repack -a -d -l &&
+git prune'
+
+cd "$base_dir"
+
+test_expect_failure 'creating too deep nesting' \
+'git clone -l -s C D &&
+git clone -l -s D E &&
+git clone -l -s E F &&
+git clone -l -s F G &&
+test_valid_repo'
+
+cd "$base_dir"
+
+test_expect_success 'validity of third repository' \
+'cd C &&
+test_valid_repo'
+
+cd "$base_dir"
+
+test_expect_success 'validity of fourth repository' \
+'cd D &&
+test_valid_repo'
+
+cd "$base_dir"
+
+test_expect_success 'breaking of loops' \
+"echo '$base_dir/B/.git/objects' >> '$base_dir'/A/.git/objects/info/alternates&&
+cd C &&
+test_valid_repo"
+
+cd "$base_dir"
+
+test_expect_failure 'that info/alternates is neccessary' \
+'cd C &&
+rm .git/objects/info/alternates &&
+test_valid_repo'
+
+cd "$base_dir"
+
+test_expect_success 'that relative alternate is possible for current dir' \
+'cd C &&
+echo "../../../B/.git/objects" > .git/objects/info/alternates &&
+test_valid_repo'
+
+cd "$base_dir"
+
+test_expect_failure 'that relative alternate is only possible for current dir' \
+'cd D &&
+test_valid_repo'
+
+cd "$base_dir"
+
+test_done
+
index a2d24b5ca95d971eccbb913c2a0eb84b7e87cd10..5ac25647abd366f04867a5acec6a987f314c2ace 100755 (executable)
@@ -111,6 +111,7 @@ test_expect_success 'pull renaming branch into unrenaming one' \
 
 test_expect_success 'pull renaming branch into another renaming one' \
 '
+       rm -f B
        git reset --hard
        git checkout red
        git pull . white && {
diff --git a/t/test4012.png b/t/test4012.png
new file mode 100644 (file)
index 0000000..7b181d1
Binary files /dev/null and b/t/test4012.png differ
index fc60a90873d1928ce3ada6d26f0a0ae571d43773..33087366c350655fe92837ba0fe0b3ac80865f33 100644 (file)
@@ -321,8 +321,8 @@ int main(int argc, char **argv)
                strbuf_append_string(&current_path, "/");
                /* FALLTHROUGH */
        case 2:
-               if (get_sha1(argv[1], sha1) < 0)
-                       usage(tar_tree_usage);
+               if (get_sha1(argv[1], sha1))
+                       die("Not a valid object name %s", argv[1]);
                break;
        default:
                usage(tar_tree_usage);
index 23a85623019c3b7a465fba86132df3f4b75d94a5..ccddf1d4b0cf7fd3a699d8b33cf5bc4c5c4435b7 100644 (file)
@@ -27,8 +27,10 @@ int main(int argc, char **argv)
 {
        unsigned char sha1[20];
 
-       if (argc != 2 || get_sha1(argv[1], sha1))
+       if (argc != 2)
                usage("git-unpack-file <sha1>");
+       if (get_sha1(argv[1], sha1))
+               die("Not a valid object name %s", argv[1]);
 
        setup_git_directory();
        git_config(git_default_config);
index d63f8ac99820ad3984a780e9772c77bef7c7225b..7d6de821e23fc02b19b970df94200edd31bc864f 100644 (file)
@@ -18,9 +18,6 @@
 static int allow_add;
 static int allow_remove;
 static int allow_replace;
-static int allow_unmerged; /* --refresh needing merge is not error */
-static int not_new; /* --refresh not having working tree files is not error */
-static int quiet; /* --refresh needing update is not error */
 static int info_only;
 static int force_remove;
 static int verbose;
@@ -28,23 +25,6 @@ static int mark_valid_only = 0;
 #define MARK_VALID 1
 #define UNMARK_VALID 2
 
-
-/* Three functions to allow overloaded pointer return; see linux/err.h */
-static inline void *ERR_PTR(long error)
-{
-       return (void *) error;
-}
-
-static inline long PTR_ERR(const void *ptr)
-{
-       return (long) ptr;
-}
-
-static inline long IS_ERR(const void *ptr)
-{
-       return (unsigned long)ptr > (unsigned long)-1000L;
-}
-
 static void report(const char *fmt, ...)
 {
        va_list vp;
@@ -140,103 +120,6 @@ static int add_file_to_cache(const char *path)
        return 0;
 }
 
-/*
- * "refresh" does not calculate a new sha1 file or bring the
- * cache up-to-date for mode/content changes. But what it
- * _does_ do is to "re-match" the stat information of a file
- * with the cache, so that you can refresh the cache for a
- * file that hasn't been changed but where the stat entry is
- * out of date.
- *
- * For example, you'd want to do this after doing a "git-read-tree",
- * to link up the stat cache details with the proper files.
- */
-static struct cache_entry *refresh_entry(struct cache_entry *ce, int really)
-{
-       struct stat st;
-       struct cache_entry *updated;
-       int changed, size;
-
-       if (lstat(ce->name, &st) < 0)
-               return ERR_PTR(-errno);
-
-       changed = ce_match_stat(ce, &st, really);
-       if (!changed) {
-               if (really && assume_unchanged &&
-                   !(ce->ce_flags & htons(CE_VALID)))
-                       ; /* mark this one VALID again */
-               else
-                       return NULL;
-       }
-
-       if (ce_modified(ce, &st, really))
-               return ERR_PTR(-EINVAL);
-
-       size = ce_size(ce);
-       updated = xmalloc(size);
-       memcpy(updated, ce, size);
-       fill_stat_cache_info(updated, &st);
-
-       /* In this case, if really is not set, we should leave
-        * CE_VALID bit alone.  Otherwise, paths marked with
-        * --no-assume-unchanged (i.e. things to be edited) will
-        * reacquire CE_VALID bit automatically, which is not
-        * really what we want.
-        */
-       if (!really && assume_unchanged && !(ce->ce_flags & htons(CE_VALID)))
-               updated->ce_flags &= ~htons(CE_VALID);
-
-       return updated;
-}
-
-static int refresh_cache(int really)
-{
-       int i;
-       int has_errors = 0;
-
-       for (i = 0; i < active_nr; i++) {
-               struct cache_entry *ce, *new;
-               ce = active_cache[i];
-               if (ce_stage(ce)) {
-                       while ((i < active_nr) &&
-                              ! strcmp(active_cache[i]->name, ce->name))
-                               i++;
-                       i--;
-                       if (allow_unmerged)
-                               continue;
-                       printf("%s: needs merge\n", ce->name);
-                       has_errors = 1;
-                       continue;
-               }
-
-               new = refresh_entry(ce, really);
-               if (!new)
-                       continue;
-               if (IS_ERR(new)) {
-                       if (not_new && PTR_ERR(new) == -ENOENT)
-                               continue;
-                       if (really && PTR_ERR(new) == -EINVAL) {
-                               /* If we are doing --really-refresh that
-                                * means the index is not valid anymore.
-                                */
-                               ce->ce_flags &= ~htons(CE_VALID);
-                               active_cache_changed = 1;
-                       }
-                       if (quiet)
-                               continue;
-                       printf("%s: needs update\n", ce->name);
-                       has_errors = 1;
-                       continue;
-               }
-               active_cache_changed = 1;
-               /* You can NOT just free active_cache[i] here, since it
-                * might not be necessarily malloc()ed but can also come
-                * from mmap(). */
-               active_cache[i] = new;
-       }
-       return has_errors;
-}
-
 /*
  * We fundamentally don't like some paths: we don't want
  * dot or dot-dot anywhere, and for obvious reasons don't
@@ -382,7 +265,7 @@ static void update_one(const char *path, const char *prefix, int prefix_length)
                die("Unable to process file %s", path);
        report("add '%s'", path);
  free_return:
-       if (p != path)
+       if (p < path || p > path + strlen(path))
                free((char*)p);
 }
 
@@ -476,7 +359,7 @@ static void read_index_info(int line_termination)
 }
 
 static const char update_index_usage[] =
-"git-update-index [-q] [--add] [--replace] [--remove] [--unmerged] [--refresh] [--really-refresh] [--cacheinfo] [--chmod=(+|-)x] [--assume-unchanged] [--info-only] [--force-remove] [--stdin] [--index-info] [--unresolve] [--ignore-missing] [-z] [--verbose] [--] <file>...";
+"git-update-index [-q] [--add] [--replace] [--remove] [--unmerged] [--refresh] [--really-refresh] [--cacheinfo] [--chmod=(+|-)x] [--assume-unchanged] [--info-only] [--force-remove] [--stdin] [--index-info] [--unresolve] [--again] [--ignore-missing] [-z] [--verbose] [--] <file>...";
 
 static unsigned char head_sha1[20];
 static unsigned char merge_head_sha1[20];
@@ -491,11 +374,13 @@ static struct cache_entry *read_one_ent(const char *which,
        struct cache_entry *ce;
 
        if (get_tree_entry(ent, path, sha1, &mode)) {
-               error("%s: not in %s branch.", path, which);
+               if (which)
+                       error("%s: not in %s branch.", path, which);
                return NULL;
        }
        if (mode == S_IFDIR) {
-               error("%s: not a blob in %s branch.", path, which);
+               if (which)
+                       error("%s: not a blob in %s branch.", path, which);
                return NULL;
        }
        size = cache_entry_size(namelen);
@@ -594,12 +479,55 @@ static int do_unresolve(int ac, const char **av,
                const char *arg = av[i];
                const char *p = prefix_path(prefix, prefix_length, arg);
                err |= unresolve_one(p);
-               if (p != arg)
+               if (p < arg || p > arg + strlen(arg))
                        free((char*)p);
        }
        return err;
 }
 
+static int do_reupdate(int ac, const char **av,
+                      const char *prefix, int prefix_length)
+{
+       /* Read HEAD and run update-index on paths that are
+        * merged and already different between index and HEAD.
+        */
+       int pos;
+       int has_head = 1;
+       const char **pathspec = get_pathspec(prefix, av + 1);
+
+       if (read_ref(git_path("HEAD"), head_sha1))
+               /* If there is no HEAD, that means it is an initial
+                * commit.  Update everything in the index.
+                */
+               has_head = 0;
+ redo:
+       for (pos = 0; pos < active_nr; pos++) {
+               struct cache_entry *ce = active_cache[pos];
+               struct cache_entry *old = NULL;
+               int save_nr;
+
+               if (ce_stage(ce) || !ce_path_match(ce, pathspec))
+                       continue;
+               if (has_head)
+                       old = read_one_ent(NULL, head_sha1,
+                                          ce->name, ce_namelen(ce), 0);
+               if (old && ce->ce_mode == old->ce_mode &&
+                   !memcmp(ce->sha1, old->sha1, 20)) {
+                       free(old);
+                       continue; /* unchanged */
+               }
+               /* Be careful.  The working tree may not have the
+                * path anymore, in which case, under 'allow_remove',
+                * or worse yet 'allow_replace', active_nr may decrease.
+                */
+               save_nr = active_nr;
+               update_one(ce->name + prefix_length, prefix, prefix_length);
+               if (save_nr != active_nr)
+                       goto redo;
+       }
+       return 0;
+}
+
 int main(int argc, const char **argv)
 {
        int i, newfd, entries, has_errors = 0, line_termination = '\n';
@@ -608,6 +536,7 @@ int main(int argc, const char **argv)
        const char *prefix = setup_git_directory();
        int prefix_length = prefix ? strlen(prefix) : 0;
        char set_executable_bit = 0;
+       unsigned int refresh_flags = 0;
 
        git_config(git_default_config);
 
@@ -628,7 +557,7 @@ int main(int argc, const char **argv)
                                continue;
                        }
                        if (!strcmp(path, "-q")) {
-                               quiet = 1;
+                               refresh_flags |= REFRESH_QUIET;
                                continue;
                        }
                        if (!strcmp(path, "--add")) {
@@ -644,15 +573,15 @@ int main(int argc, const char **argv)
                                continue;
                        }
                        if (!strcmp(path, "--unmerged")) {
-                               allow_unmerged = 1;
+                               refresh_flags |= REFRESH_UNMERGED;
                                continue;
                        }
                        if (!strcmp(path, "--refresh")) {
-                               has_errors |= refresh_cache(0);
+                               has_errors |= refresh_cache(refresh_flags);
                                continue;
                        }
                        if (!strcmp(path, "--really-refresh")) {
-                               has_errors |= refresh_cache(1);
+                               has_errors |= refresh_cache(REFRESH_REALLY | refresh_flags);
                                continue;
                        }
                        if (!strcmp(path, "--cacheinfo")) {
@@ -717,8 +646,15 @@ int main(int argc, const char **argv)
                                        active_cache_changed = 0;
                                goto finish;
                        }
+                       if (!strcmp(path, "--again")) {
+                               has_errors = do_reupdate(argc - i, argv + i,
+                                                        prefix, prefix_length);
+                               if (has_errors)
+                                       active_cache_changed = 0;
+                               goto finish;
+                       }
                        if (!strcmp(path, "--ignore-missing")) {
-                               not_new = 1;
+                               refresh_flags |= REFRESH_IGNORE_MISSING;
                                continue;
                        }
                        if (!strcmp(path, "--verbose")) {
@@ -750,7 +686,7 @@ int main(int argc, const char **argv)
                        update_one(p, NULL, 0);
                        if (set_executable_bit)
                                chmod_path(set_executable_bit, p);
-                       if (p != path_name)
+                       if (p < path_name || p > path_name + strlen(path_name))
                                free((char*) p);
                        if (path_name != buf.buf)
                                free(path_name);
index ba4bf5153efb38914f66658c59784b58d8b69a0a..fd487421cd36763dd94f5439b3c40d0ed97c2c96 100644 (file)
@@ -32,10 +32,10 @@ int main(int argc, char **argv)
        refname = argv[1];
        value = argv[2];
        oldval = argv[3];
-       if (get_sha1(value, sha1) < 0)
+       if (get_sha1(value, sha1))
                die("%s: not a valid SHA1", value);
        memset(oldsha1, 0, 20);
-       if (oldval && get_sha1(oldval, oldsha1) < 0)
+       if (oldval && get_sha1(oldval, oldsha1))
                die("%s: not a valid old SHA1", oldval);
 
        path = resolve_ref(git_path("%s", refname), currsha1, !!oldval);