From: Junio C Hamano Date: Wed, 25 Apr 2018 04:28:52 +0000 (+0900) Subject: Merge branch 'jk/relative-directory-fix' X-Git-Tag: v2.18.0-rc0~128 X-Git-Url: https://git.lorimer.id.au/gitweb.git/diff_plain/ff6eb825f0aa1f45230c10fbb0cf8d484c927c55?hp=-c Merge branch 'jk/relative-directory-fix' Some codepaths, including the refs API, get and keep relative paths, that go out of sync when the process does chdir(2). The chdir-notify API is introduced to let these codepaths adjust these cached paths to the new current directory. * jk/relative-directory-fix: refs: use chdir_notify to update cached relative paths set_work_tree: use chdir_notify add chdir-notify API trace.c: export trace_setup_key set_git_dir: die when setenv() fails --- ff6eb825f0aa1f45230c10fbb0cf8d484c927c55 diff --combined Makefile index f181687250,0da98b9274..2e198c41dc --- a/Makefile +++ b/Makefile @@@ -29,10 -29,10 +29,10 @@@ all: # Perl-compatible regular expressions instead of standard or extended # POSIX regular expressions. # -# Currently USE_LIBPCRE is a synonym for USE_LIBPCRE1, define -# USE_LIBPCRE2 instead if you'd like to use version 2 of the PCRE -# library. The USE_LIBPCRE flag will likely be changed to mean v2 by -# default in future releases. +# USE_LIBPCRE is a synonym for USE_LIBPCRE2, define USE_LIBPCRE1 +# instead if you'd like to use the legacy version 1 of the PCRE +# library. Support for version 1 will likely be removed in some future +# release of Git, as upstream has all but abandoned it. # # When using USE_LIBPCRE1, define NO_LIBPCRE1_JIT if the PCRE v1 # library is compiled without --enable-jit. We will auto-detect @@@ -335,13 -335,6 +335,13 @@@ # when hardlinking a file to another name and unlinking the original file right # away (some NTFS drivers seem to zero the contents in that scenario). # +# Define INSTALL_SYMLINKS if you prefer to have everything that can be +# symlinked between bin/ and libexec/ to use relative symlinks between +# the two. This option overrides NO_CROSS_DIRECTORY_HARDLINKS and +# NO_INSTALL_HARDLINKS which will also use symlinking by indirection +# within the same directory in some cases, INSTALL_SYMLINKS will +# always symlink to the final target directly. +# # Define NO_CROSS_DIRECTORY_HARDLINKS if you plan to distribute the installed # programs as a tar, where bin/ and libexec/ might be on different file systems. # @@@ -481,7 -474,8 +481,7 @@@ ARFLAGS = rc # This can help installing the suite in a relocatable way. prefix = $(HOME) -bindir_relative = bin -bindir = $(prefix)/$(bindir_relative) +bindir = $(prefix)/bin mandir = $(prefix)/share/man infodir = $(prefix)/share/info gitexecdir = libexec/git-core @@@ -498,10 -492,8 +498,10 @@@ lib = li # DESTDIR = pathsep = : +bindir_relative = $(patsubst $(prefix)/%,%,$(bindir)) mandir_relative = $(patsubst $(prefix)/%,%,$(mandir)) infodir_relative = $(patsubst $(prefix)/%,%,$(infodir)) +gitexecdir_relative = $(patsubst $(prefix)/%,%,$(gitexecdir)) htmldir_relative = $(patsubst $(prefix)/%,%,$(htmldir)) export prefix bindir sharedir sysconfdir gitwebdir perllibdir localedir @@@ -554,7 -546,6 +554,7 @@@ SCRIPT_PERL SCRIPT_PYTHON = SCRIPT_SH = SCRIPT_LIB = +TEST_BUILTINS_OBJS = TEST_PROGRAMS_NEED_X = # Having this variable in your environment would break pipelines because @@@ -660,49 -651,47 +660,49 @@@ X PROGRAMS += $(patsubst %.o,git-%$X,$(PROGRAM_OBJS)) -TEST_PROGRAMS_NEED_X += test-chmtime -TEST_PROGRAMS_NEED_X += test-ctype -TEST_PROGRAMS_NEED_X += test-config -TEST_PROGRAMS_NEED_X += test-date -TEST_PROGRAMS_NEED_X += test-delta -TEST_PROGRAMS_NEED_X += test-drop-caches -TEST_PROGRAMS_NEED_X += test-dump-cache-tree +TEST_BUILTINS_OBJS += test-chmtime.o +TEST_BUILTINS_OBJS += test-config.o +TEST_BUILTINS_OBJS += test-ctype.o +TEST_BUILTINS_OBJS += test-date.o +TEST_BUILTINS_OBJS += test-delta.o +TEST_BUILTINS_OBJS += test-drop-caches.o +TEST_BUILTINS_OBJS += test-dump-cache-tree.o +TEST_BUILTINS_OBJS += test-dump-split-index.o +TEST_BUILTINS_OBJS += test-example-decorate.o +TEST_BUILTINS_OBJS += test-genrandom.o +TEST_BUILTINS_OBJS += test-hashmap.o +TEST_BUILTINS_OBJS += test-index-version.o +TEST_BUILTINS_OBJS += test-lazy-init-name-hash.o +TEST_BUILTINS_OBJS += test-match-trees.o +TEST_BUILTINS_OBJS += test-mergesort.o +TEST_BUILTINS_OBJS += test-mktemp.o +TEST_BUILTINS_OBJS += test-online-cpus.o +TEST_BUILTINS_OBJS += test-path-utils.o +TEST_BUILTINS_OBJS += test-prio-queue.o +TEST_BUILTINS_OBJS += test-read-cache.o +TEST_BUILTINS_OBJS += test-ref-store.o +TEST_BUILTINS_OBJS += test-regex.o +TEST_BUILTINS_OBJS += test-revision-walking.o +TEST_BUILTINS_OBJS += test-run-command.o +TEST_BUILTINS_OBJS += test-scrap-cache-tree.o +TEST_BUILTINS_OBJS += test-sha1-array.o +TEST_BUILTINS_OBJS += test-sha1.o +TEST_BUILTINS_OBJS += test-sigchain.o +TEST_BUILTINS_OBJS += test-strcmp-offset.o +TEST_BUILTINS_OBJS += test-string-list.o +TEST_BUILTINS_OBJS += test-submodule-config.o +TEST_BUILTINS_OBJS += test-subprocess.o +TEST_BUILTINS_OBJS += test-urlmatch-normalization.o +TEST_BUILTINS_OBJS += test-wildmatch.o +TEST_BUILTINS_OBJS += test-write-cache.o + TEST_PROGRAMS_NEED_X += test-dump-fsmonitor -TEST_PROGRAMS_NEED_X += test-dump-split-index TEST_PROGRAMS_NEED_X += test-dump-untracked-cache -TEST_PROGRAMS_NEED_X += test-example-decorate TEST_PROGRAMS_NEED_X += test-fake-ssh -TEST_PROGRAMS_NEED_X += test-genrandom -TEST_PROGRAMS_NEED_X += test-hashmap -TEST_PROGRAMS_NEED_X += test-index-version -TEST_PROGRAMS_NEED_X += test-lazy-init-name-hash TEST_PROGRAMS_NEED_X += test-line-buffer -TEST_PROGRAMS_NEED_X += test-match-trees -TEST_PROGRAMS_NEED_X += test-mergesort -TEST_PROGRAMS_NEED_X += test-mktemp -TEST_PROGRAMS_NEED_X += test-online-cpus TEST_PROGRAMS_NEED_X += test-parse-options -TEST_PROGRAMS_NEED_X += test-path-utils -TEST_PROGRAMS_NEED_X += test-prio-queue -TEST_PROGRAMS_NEED_X += test-read-cache -TEST_PROGRAMS_NEED_X += test-write-cache -TEST_PROGRAMS_NEED_X += test-ref-store -TEST_PROGRAMS_NEED_X += test-regex -TEST_PROGRAMS_NEED_X += test-revision-walking -TEST_PROGRAMS_NEED_X += test-run-command -TEST_PROGRAMS_NEED_X += test-scrap-cache-tree -TEST_PROGRAMS_NEED_X += test-sha1 -TEST_PROGRAMS_NEED_X += test-sha1-array -TEST_PROGRAMS_NEED_X += test-sigchain -TEST_PROGRAMS_NEED_X += test-strcmp-offset -TEST_PROGRAMS_NEED_X += test-string-list -TEST_PROGRAMS_NEED_X += test-submodule-config -TEST_PROGRAMS_NEED_X += test-subprocess TEST_PROGRAMS_NEED_X += test-svn-fe -TEST_PROGRAMS_NEED_X += test-urlmatch-normalization -TEST_PROGRAMS_NEED_X += test-wildmatch +TEST_PROGRAMS_NEED_X += test-tool TEST_PROGRAMS = $(patsubst %,t/helper/%$X,$(TEST_PROGRAMS_NEED_X)) @@@ -783,6 -772,7 +783,7 @@@ LIB_OBJS += branch. LIB_OBJS += bulk-checkin.o LIB_OBJS += bundle.o LIB_OBJS += cache-tree.o + LIB_OBJS += chdir-notify.o LIB_OBJS += checkout.o LIB_OBJS += color.o LIB_OBJS += column.o @@@ -1181,18 -1171,13 +1182,18 @@@ ifdef NO_LIBGEN_ COMPAT_OBJS += compat/basename.o endif -USE_LIBPCRE1 ?= $(USE_LIBPCRE) +USE_LIBPCRE2 ?= $(USE_LIBPCRE) -ifneq (,$(USE_LIBPCRE1)) - ifdef USE_LIBPCRE2 -$(error Only set USE_LIBPCRE1 (or its alias USE_LIBPCRE) or USE_LIBPCRE2, not both!) +ifneq (,$(USE_LIBPCRE2)) + ifdef USE_LIBPCRE1 +$(error Only set USE_LIBPCRE2 (or its alias USE_LIBPCRE) or USE_LIBPCRE1, not both!) endif + BASIC_CFLAGS += -DUSE_LIBPCRE2 + EXTLIBS += -lpcre2-8 +endif + +ifdef USE_LIBPCRE1 BASIC_CFLAGS += -DUSE_LIBPCRE1 EXTLIBS += -lpcre @@@ -1201,6 -1186,11 +1202,6 @@@ ifdef NO_LIBPCRE1_JI endif endif -ifdef USE_LIBPCRE2 - BASIC_CFLAGS += -DUSE_LIBPCRE2 - EXTLIBS += -lpcre2-8 -endif - ifdef LIBPCREDIR BASIC_CFLAGS += -I$(LIBPCREDIR)/include EXTLIBS += -L$(LIBPCREDIR)/$(lib) $(CC_LD_DYNPATH)$(LIBPCREDIR)/$(lib) @@@ -1752,7 -1742,6 +1753,7 @@@ infodir_relative_SQ = $(subst ','\'',$( perllibdir_SQ = $(subst ','\'',$(perllibdir)) localedir_SQ = $(subst ','\'',$(localedir)) gitexecdir_SQ = $(subst ','\'',$(gitexecdir)) +gitexecdir_relative_SQ = $(subst ','\'',$(gitexecdir_relative)) template_dir_SQ = $(subst ','\'',$(template_dir)) htmldir_relative_SQ = $(subst ','\'',$(htmldir_relative)) prefix_SQ = $(subst ','\'',$(prefix)) @@@ -2095,7 -2084,7 +2096,7 @@@ VCSSVN_OBJS += vcs-svn/fast_export. VCSSVN_OBJS += vcs-svn/svndiff.o VCSSVN_OBJS += vcs-svn/svndump.o -TEST_OBJS := $(patsubst %$X,%.o,$(TEST_PROGRAMS)) +TEST_OBJS := $(patsubst %$X,%.o,$(TEST_PROGRAMS)) $(patsubst %,t/helper/%,$(TEST_BUILTINS_OBJS)) OBJECTS := $(LIB_OBJS) $(BUILTIN_OBJS) $(PROGRAM_OBJS) $(TEST_OBJS) \ $(XDIFF_OBJS) \ $(VCSSVN_OBJS) \ @@@ -2506,12 -2495,10 +2507,12 @@@ t/helper/test-svn-fe$X: $(VCSSVN_LIB .PRECIOUS: $(TEST_OBJS) +t/helper/test-tool$X: $(patsubst %,t/helper/%,$(TEST_BUILTINS_OBJS)) + t/helper/test-%$X: t/helper/test-%.o GIT-LDFLAGS $(GITLIBS) $(QUIET_LINK)$(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) $(filter %.o,$^) $(filter %.a,$^) $(LIBS) -check-sha1:: t/helper/test-sha1$X +check-sha1:: t/helper/test-tool$X t/helper/test-sha1.sh SP_OBJ = $(patsubst %.o,%.sp,$(C_OBJ)) @@@ -2620,44 -2607,35 +2621,44 @@@ endi bindir=$$(cd '$(DESTDIR_SQ)$(bindir_SQ)' && pwd) && \ execdir=$$(cd '$(DESTDIR_SQ)$(gitexec_instdir_SQ)' && pwd) && \ + destdir_from_execdir_SQ=$$(echo '$(gitexecdir_relative_SQ)' | sed -e 's|[^/][^/]*|..|g') && \ { test "$$bindir/" = "$$execdir/" || \ for p in git$X $(filter $(install_bindir_programs),$(ALL_PROGRAMS)); do \ $(RM) "$$execdir/$$p" && \ - test -z "$(NO_INSTALL_HARDLINKS)$(NO_CROSS_DIRECTORY_HARDLINKS)" && \ - ln "$$bindir/$$p" "$$execdir/$$p" 2>/dev/null || \ - cp "$$bindir/$$p" "$$execdir/$$p" || exit; \ + test -n "$(INSTALL_SYMLINKS)" && \ + ln -s "$$destdir_from_execdir_SQ/$(bindir_relative_SQ)/$$p" "$$execdir/$$p" || \ + { test -z "$(NO_INSTALL_HARDLINKS)$(NO_CROSS_DIRECTORY_HARDLINKS)" && \ + ln "$$bindir/$$p" "$$execdir/$$p" 2>/dev/null || \ + cp "$$bindir/$$p" "$$execdir/$$p" || exit; } \ done; \ } && \ for p in $(filter $(install_bindir_programs),$(BUILT_INS)); do \ $(RM) "$$bindir/$$p" && \ - test -z "$(NO_INSTALL_HARDLINKS)" && \ - ln "$$bindir/git$X" "$$bindir/$$p" 2>/dev/null || \ - ln -s "git$X" "$$bindir/$$p" 2>/dev/null || \ - cp "$$bindir/git$X" "$$bindir/$$p" || exit; \ + test -n "$(INSTALL_SYMLINKS)" && \ + ln -s "git$X" "$$bindir/$$p" || \ + { test -z "$(NO_INSTALL_HARDLINKS)" && \ + ln "$$bindir/git$X" "$$bindir/$$p" 2>/dev/null || \ + ln -s "git$X" "$$bindir/$$p" 2>/dev/null || \ + cp "$$bindir/git$X" "$$bindir/$$p" || exit; } \ done && \ for p in $(BUILT_INS); do \ $(RM) "$$execdir/$$p" && \ - test -z "$(NO_INSTALL_HARDLINKS)" && \ - ln "$$execdir/git$X" "$$execdir/$$p" 2>/dev/null || \ - ln -s "git$X" "$$execdir/$$p" 2>/dev/null || \ - cp "$$execdir/git$X" "$$execdir/$$p" || exit; \ + test -n "$(INSTALL_SYMLINKS)" && \ + ln -s "$$destdir_from_execdir_SQ/$(bindir_relative_SQ)/git$X" "$$execdir/$$p" || \ + { test -z "$(NO_INSTALL_HARDLINKS)" && \ + ln "$$execdir/git$X" "$$execdir/$$p" 2>/dev/null || \ + ln -s "git$X" "$$execdir/$$p" 2>/dev/null || \ + cp "$$execdir/git$X" "$$execdir/$$p" || exit; } \ done && \ remote_curl_aliases="$(REMOTE_CURL_ALIASES)" && \ for p in $$remote_curl_aliases; do \ $(RM) "$$execdir/$$p" && \ - test -z "$(NO_INSTALL_HARDLINKS)" && \ - ln "$$execdir/git-remote-http$X" "$$execdir/$$p" 2>/dev/null || \ - ln -s "git-remote-http$X" "$$execdir/$$p" 2>/dev/null || \ - cp "$$execdir/git-remote-http$X" "$$execdir/$$p" || exit; \ + test -n "$(INSTALL_SYMLINKS)" && \ + ln -s "git-remote-http$X" "$$execdir/$$p" || \ + { test -z "$(NO_INSTALL_HARDLINKS)" && \ + ln "$$execdir/git-remote-http$X" "$$execdir/$$p" 2>/dev/null || \ + ln -s "git-remote-http$X" "$$execdir/$$p" 2>/dev/null || \ + cp "$$execdir/git-remote-http$X" "$$execdir/$$p" || exit; } \ done && \ ./check_bindir "z$$bindir" "z$$execdir" "$$bindir/git-add$X" diff --combined cache.h index bbaf5c349a,5c24394d84..77b7acebb6 --- a/cache.h +++ b/cache.h @@@ -459,7 -459,7 +459,7 @@@ static inline enum object_type object_t */ extern const char * const local_repo_env[]; -extern void setup_git_env(void); +extern void setup_git_env(const char *git_dir); /* * Returns true iff we have a configured git repository (either via @@@ -477,7 -477,7 +477,7 @@@ extern const char *get_git_common_dir(v extern char *get_object_directory(void); extern char *get_index_file(void); extern char *get_graft_file(void); - extern int set_git_dir(const char *path); + extern void set_git_dir(const char *path); extern int get_common_dir_noenv(struct strbuf *sb, const char *gitdir); extern int get_common_dir(struct strbuf *sb, const char *gitdir); extern const char *get_git_namespace(void); @@@ -940,6 -940,12 +940,6 @@@ extern void check_repository_format(voi #define DATA_CHANGED 0x0020 #define TYPE_CHANGED 0x0040 -/* - * Put in `buf` the name of the file in the local object database that - * would be used to store a loose object with the specified sha1. - */ -extern void sha1_file_name(struct strbuf *buf, const unsigned char *sha1); - /* * Return an abbreviated sha1 unique within this repository's object database. * The result will be at least `len` characters long, and will be NUL @@@ -949,14 -955,14 +949,14 @@@ * more calls to find_unique_abbrev are made. * * The `_r` variant writes to a buffer supplied by the caller, which must be at - * least `GIT_SHA1_HEXSZ + 1` bytes. The return value is the number of bytes + * least `GIT_MAX_HEXSZ + 1` bytes. The return value is the number of bytes * written (excluding the NUL terminator). * * Note that while this version avoids the static buffer, it is not fully * reentrant, as it calls into other non-reentrant git code. */ -extern const char *find_unique_abbrev(const unsigned char *sha1, int len); -extern int find_unique_abbrev_r(char *hex, const unsigned char *sha1, int len); +extern const char *find_unique_abbrev(const struct object_id *oid, int len); +extern int find_unique_abbrev_r(char *hex, const struct object_id *oid, int len); extern const unsigned char null_sha1[GIT_MAX_RAWSZ]; extern const struct object_id null_oid; @@@ -1183,19 -1189,19 +1183,19 @@@ extern char *xdg_config_home(const cha */ extern char *xdg_cache_home(const char *filename); -extern void *read_sha1_file_extended(const unsigned char *sha1, - enum object_type *type, - unsigned long *size, int lookup_replace); -static inline void *read_sha1_file(const unsigned char *sha1, enum object_type *type, unsigned long *size) +extern void *read_object_file_extended(const struct object_id *oid, + enum object_type *type, + unsigned long *size, int lookup_replace); +static inline void *read_object_file(const struct object_id *oid, enum object_type *type, unsigned long *size) { - return read_sha1_file_extended(sha1, type, size, 1); + return read_object_file_extended(oid, type, size, 1); } /* * This internal function is only declared here for the benefit of * lookup_replace_object(). Please do not call it directly. */ -extern const unsigned char *do_lookup_replace_object(const unsigned char *sha1); +extern const struct object_id *do_lookup_replace_object(const struct object_id *oid); /* * If object sha1 should be replaced, return the replacement object's @@@ -1203,15 -1209,15 +1203,15 @@@ * either sha1 or a pointer to a permanently-allocated value. When * object replacement is suppressed, always return sha1. */ -static inline const unsigned char *lookup_replace_object(const unsigned char *sha1) +static inline const struct object_id *lookup_replace_object(const struct object_id *oid) { if (!check_replace_refs) - return sha1; - return do_lookup_replace_object(sha1); + return oid; + return do_lookup_replace_object(oid); } -/* Read and unpack a sha1 file into memory, write memory to a sha1 file */ -extern int sha1_object_info(const unsigned char *, unsigned long *); +/* Read and unpack an object file into memory, write memory to an object file */ +extern int oid_object_info(const struct object_id *, unsigned long *); extern int hash_object_file(const void *buf, unsigned long len, const char *type, struct object_id *oid); @@@ -1230,22 -1236,23 +1230,22 @@@ extern int force_object_loose(const str extern int git_open_cloexec(const char *name, int flags); #define git_open(name) git_open_cloexec(name, O_RDONLY) -extern void *map_sha1_file(const unsigned char *sha1, unsigned long *size); extern int unpack_sha1_header(git_zstream *stream, unsigned char *map, unsigned long mapsize, void *buffer, unsigned long bufsiz); extern int parse_sha1_header(const char *hdr, unsigned long *sizep); -extern int check_sha1_signature(const unsigned char *sha1, void *buf, unsigned long size, const char *type); +extern int check_object_signature(const struct object_id *oid, void *buf, unsigned long size, const char *type); extern int finalize_object_file(const char *tmpfile, const char *filename); /* - * Open the loose object at path, check its sha1, and return the contents, + * Open the loose object at path, check its hash, and return the contents, * type, and size. If the object is a blob, then "contents" may return NULL, * to allow streaming of large blobs. * * Returns 0 on success, negative on error (details may be written to stderr). */ int read_loose_object(const char *path, - const unsigned char *expected_sha1, + const struct object_id *expected_oid, enum object_type *type, unsigned long *size, void **contents); @@@ -1272,7 -1279,7 +1272,7 @@@ extern int has_object_file_with_flags(c */ extern int has_loose_object_nonlocal(const unsigned char *sha1); -extern void assert_sha1_type(const unsigned char *sha1, enum object_type expect); +extern void assert_oid_type(const struct object_id *oid, enum object_type expect); /* Helper to check and "touch" a file */ extern int check_and_freshen_file(const char *fn, int freshen); @@@ -1428,10 -1435,10 +1428,10 @@@ extern int df_name_compare(const char * extern int name_compare(const char *name1, size_t len1, const char *name2, size_t len2); extern int cache_name_stage_compare(const char *name1, int len1, int stage1, const char *name2, int len2, int stage2); -extern void *read_object_with_reference(const unsigned char *sha1, +extern void *read_object_with_reference(const struct object_id *oid, const char *required_type, unsigned long *size, - unsigned char *sha1_ret); + struct object_id *oid_ret); extern struct object *peel_to_type(const char *name, int namelen, struct object *o, enum object_type); @@@ -1557,6 -1564,57 +1557,6 @@@ extern int has_dirs_only_path(const cha extern void schedule_dir_for_removal(const char *name, int len); extern void remove_scheduled_dirs(void); -extern struct alternate_object_database { - struct alternate_object_database *next; - - /* see alt_scratch_buf() */ - struct strbuf scratch; - size_t base_len; - - /* - * Used to store the results of readdir(3) calls when searching - * for unique abbreviated hashes. This cache is never - * invalidated, thus it's racy and not necessarily accurate. - * That's fine for its purpose; don't use it for tasks requiring - * greater accuracy! - */ - char loose_objects_subdir_seen[256]; - struct oid_array loose_objects_cache; - - char path[FLEX_ARRAY]; -} *alt_odb_list; -extern void prepare_alt_odb(void); -extern char *compute_alternate_path(const char *path, struct strbuf *err); -typedef int alt_odb_fn(struct alternate_object_database *, void *); -extern int foreach_alt_odb(alt_odb_fn, void*); - -/* - * Allocate a "struct alternate_object_database" but do _not_ actually - * add it to the list of alternates. - */ -struct alternate_object_database *alloc_alt_odb(const char *dir); - -/* - * Add the directory to the on-disk alternates file; the new entry will also - * take effect in the current process. - */ -extern void add_to_alternates_file(const char *dir); - -/* - * Add the directory to the in-memory list of alternates (along with any - * recursive alternates it points to), but do not modify the on-disk alternates - * file. - */ -extern void add_to_alternates_memory(const char *dir); - -/* - * Returns a scratch strbuf pre-filled with the alternate object directory, - * including a trailing slash, which can be used to access paths in the - * alternate. Always use this over direct access to alt->scratch, as it - * cleans up any previous use of the scratch buffer. - */ -extern struct strbuf *alt_scratch_buf(struct alternate_object_database *alt); - struct pack_window { struct pack_window *next; unsigned char *base; @@@ -1566,6 -1624,35 +1566,6 @@@ unsigned int inuse_cnt; }; -extern struct packed_git { - struct packed_git *next; - struct list_head mru; - struct pack_window *windows; - off_t pack_size; - const void *index_data; - size_t index_size; - uint32_t num_objects; - uint32_t num_bad_objects; - unsigned char *bad_object_sha1; - int index_version; - time_t mtime; - int pack_fd; - unsigned pack_local:1, - pack_keep:1, - freshened:1, - do_not_close:1, - pack_promisor:1; - unsigned char sha1[20]; - struct revindex_entry *revindex; - /* something like ".git/objects/pack/xxxxx.pack" */ - char pack_name[FLEX_ARRAY]; /* more */ -} *packed_git; - -/* - * A most-recently-used ordered version of the packed_git list. - */ -extern struct list_head packed_git_mru; - struct pack_entry { off_t offset; unsigned char sha1[20]; @@@ -1690,9 -1777,7 +1690,9 @@@ struct object_info #define OBJECT_INFO_SKIP_CACHED 4 /* Do not retry packed storage after checking packed and loose storage */ #define OBJECT_INFO_QUICK 8 -extern int sha1_object_info_extended(const unsigned char *, struct object_info *, unsigned flags); +/* Do not check loose object */ +#define OBJECT_INFO_IGNORE_LOOSE 16 +extern int oid_object_info_extended(const struct object_id *, struct object_info *, unsigned flags); /* * Set this to 0 to prevent sha1_object_info_extended() from fetching missing diff --combined environment.c index 39b3d906c8,903a6c9df7..fd970b81bd --- a/environment.c +++ b/environment.c @@@ -13,8 -13,7 +13,9 @@@ #include "refs.h" #include "fmt-merge-msg.h" #include "commit.h" +#include "argv-array.h" +#include "object-store.h" + #include "chdir-notify.h" int trust_executable_bit = 1; int trust_ctime = 1; @@@ -149,35 -148,10 +150,35 @@@ static char *expand_namespace(const cha return strbuf_detach(&buf, NULL); } -void setup_git_env(void) +/* + * Wrapper of getenv() that returns a strdup value. This value is kept + * in argv to be freed later. + */ +static const char *getenv_safe(struct argv_array *argv, const char *name) +{ + const char *value = getenv(name); + + if (!value) + return NULL; + + argv_array_push(argv, value); + return argv->argv[argv->argc - 1]; +} + +void setup_git_env(const char *git_dir) { const char *shallow_file; const char *replace_ref_base; + struct set_gitdir_args args = { NULL }; + struct argv_array to_free = ARGV_ARRAY_INIT; + + args.commondir = getenv_safe(&to_free, GIT_COMMON_DIR_ENVIRONMENT); + args.object_dir = getenv_safe(&to_free, DB_ENVIRONMENT); + args.graft_file = getenv_safe(&to_free, GRAFT_ENVIRONMENT); + args.index_file = getenv_safe(&to_free, INDEX_ENVIRONMENT); + args.alternate_db = getenv_safe(&to_free, ALTERNATE_DB_ENVIRONMENT); + repo_set_gitdir(the_repository, git_dir, &args); + argv_array_clear(&to_free); if (getenv(NO_REPLACE_OBJECTS_ENVIRONMENT)) check_replace_refs = 0; @@@ -271,9 -245,9 +272,9 @@@ const char *get_git_work_tree(void char *get_object_directory(void) { - if (!the_repository->objectdir) + if (!the_repository->objects->objectdir) BUG("git environment hasn't been setup"); - return the_repository->objectdir; + return the_repository->objects->objectdir; } int odb_mkstemp(struct strbuf *temp_filename, const char *pattern) @@@ -323,12 -297,32 +324,31 @@@ char *get_graft_file(void return the_repository->graft_file; } - int set_git_dir(const char *path) + static void set_git_dir_1(const char *path) { if (setenv(GIT_DIR_ENVIRONMENT, path, 1)) - return error("Could not set GIT_DIR to '%s'", path); + die("could not set GIT_DIR to '%s'", path); - repo_set_gitdir(the_repository, path); - setup_git_env(); + setup_git_env(path); - return 0; + } + + static void update_relative_gitdir(const char *name, + const char *old_cwd, + const char *new_cwd, + void *data) + { + char *path = reparent_relative_path(old_cwd, new_cwd, get_git_dir()); + trace_printf_key(&trace_setup_key, + "setup: move $GIT_DIR to '%s'", + path); + set_git_dir_1(path); + free(path); + } + + void set_git_dir(const char *path) + { + set_git_dir_1(path); + if (!is_absolute_path(path)) + chdir_notify_register(NULL, update_relative_gitdir, NULL); } const char *get_log_output_encoding(void) diff --combined setup.c index 664453fcef,9eb2e808e1..3e03d442b6 --- a/setup.c +++ b/setup.c @@@ -3,6 -3,7 +3,7 @@@ #include "config.h" #include "dir.h" #include "string-list.h" + #include "chdir-notify.h" static int inside_git_dir = -1; static int inside_work_tree = -1; @@@ -378,7 -379,7 +379,7 @@@ int is_inside_work_tree(void void setup_work_tree(void) { - const char *work_tree, *git_dir; + const char *work_tree; static int initialized = 0; if (initialized) @@@ -388,10 -389,7 +389,7 @@@ die(_("unable to set up work tree using invalid config")); work_tree = get_git_work_tree(); - git_dir = get_git_dir(); - if (!is_absolute_path(git_dir)) - git_dir = real_path(get_git_dir()); - if (!work_tree || chdir(work_tree)) + if (!work_tree || chdir_notify(work_tree)) die(_("this operation must be run in a work tree")); /* @@@ -401,7 -399,6 +399,6 @@@ if (getenv(GIT_WORK_TREE_ENVIRONMENT)) setenv(GIT_WORK_TREE_ENVIRONMENT, ".", 1); - set_git_dir(remove_leading_path(git_dir, work_tree)); initialized = 1; } @@@ -1116,7 -1113,8 +1113,7 @@@ const char *setup_git_directory_gently( const char *gitdir = getenv(GIT_DIR_ENVIRONMENT); if (!gitdir) gitdir = DEFAULT_GIT_DIR_ENVIRONMENT; - repo_set_gitdir(the_repository, gitdir); - setup_git_env(); + setup_git_env(gitdir); } if (startup_info->have_repository) repo_set_hash_algo(the_repository, repo_fmt.hash_algo); diff --combined t/t1501-work-tree.sh index 02cf2013fc,a5db53337b..9c0bc65250 --- a/t/t1501-work-tree.sh +++ b/t/t1501-work-tree.sh @@@ -341,7 -341,7 +341,7 @@@ test_expect_success 'make_relative_pat test_expect_success 'relative $GIT_WORK_TREE and git subprocesses' ' GIT_DIR=repo.git GIT_WORK_TREE=repo.git/work \ - test-subprocess --setup-work-tree rev-parse --show-toplevel >actual && + test-tool subprocess --setup-work-tree rev-parse --show-toplevel >actual && echo "$(pwd)/repo.git/work" >expected && test_cmp expected actual ' @@@ -360,7 -360,7 +360,7 @@@ test_expect_success 'GIT_DIR set (1)' ( cd work && GIT_DIR=../gitfile git rev-parse --git-common-dir >actual && - test-path-utils real_path "$TRASH_DIRECTORY/repo.git" >expect && + test-tool path-utils real_path "$TRASH_DIRECTORY/repo.git" >expect && test_cmp expect actual ) ' @@@ -371,7 -371,7 +371,7 @@@ test_expect_success 'GIT_DIR set (2)' ( cd work && GIT_DIR=../gitfile git rev-parse --git-common-dir >actual && - test-path-utils real_path "$TRASH_DIRECTORY/repo.git" >expect && + test-tool path-utils real_path "$TRASH_DIRECTORY/repo.git" >expect && test_cmp expect actual ) ' @@@ -382,7 -382,7 +382,7 @@@ test_expect_success 'Auto discovery' ( cd work && git rev-parse --git-common-dir >actual && - test-path-utils real_path "$TRASH_DIRECTORY/repo.git" >expect && + test-tool path-utils real_path "$TRASH_DIRECTORY/repo.git" >expect && test_cmp expect actual && echo haha >data1 && git add data1 && @@@ -400,7 -400,7 +400,7 @@@ test_expect_success '$GIT_DIR/common ov ( cd work && git rev-parse --git-common-dir >actual && - test-path-utils real_path "$TRASH_DIRECTORY/repo.git" >expect && + test-tool path-utils real_path "$TRASH_DIRECTORY/repo.git" >expect && test_cmp expect actual && echo haha >data2 && git add data2 && @@@ -431,4 -431,16 +431,16 @@@ test_expect_success 'error out graceful ) ' + test_expect_success 'refs work with relative gitdir and work tree' ' + git init relative && + git -C relative commit --allow-empty -m one && + git -C relative commit --allow-empty -m two && + + GIT_DIR=relative/.git GIT_WORK_TREE=relative git reset HEAD^ && + + git -C relative log -1 --format=%s >actual && + echo one >expect && + test_cmp expect actual + ' + test_done