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Git with broken hash generation to generate collisions between object IDs. Don't use this! https://undefinedbehavior.de/posts/commit-vandalism/
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Jeff King 650c449250 common-main: call git_extract_argv0_path() 
Every program which links against libgit.a must call this
function, or risk hitting an assert() in system_path() that
checks whether we have configured argv0_path (though only
when RUNTIME_PREFIX is defined, so essentially only on
Windows).

Looking at the diff, you can see that putting it into the
common main() saves us having to do it individually in each
of the external commands. But what you can't see are the
cases where we _should_ have been doing so, but weren't
(e.g., git-credential-store, and all of the t/helper test
programs).

This has been an accident-waiting-to-happen for a long time,
but wasn't triggered until recently because it involves one
of those programs actually calling system_path(). That
happened with git-credential-store in v2.8.0 with ae5f677
(lazily load core.sharedrepository, 2016-03-11). The
program:

  - takes a lock file, which...

  - opens a tempfile, which...

  - calls adjust_shared_perm to fix permissions, which...

  - lazy-loads the config (as of ae5f677), which...

  - calls system_path() to find the location of
    /etc/gitconfig

On systems with RUNTIME_PREFIX, this means credential-store
reliably hits that assert() and cannot be used.

We never noticed in the test suite, because we set
GIT_CONFIG_NOSYSTEM there, which skips the system_path()
lookup entirely.  But if we were to tweak git_config() to
find /etc/gitconfig even when we aren't going to open it,
then the test suite shows multiple failures (for
credential-store, and for some other test helpers). I didn't
include that tweak here because it's way too specific to
this particular call to be worth carrying around what is
essentially dead code.

The implementation is fairly straightforward, with one
exception: there is exactly one caller (git.c) that actually
cares about the result of the function, and not the
side-effect of setting up argv0_path. We can accommodate
that by simply replacing the value of argv[0] in the array
we hand down to cmd_main().

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-01 15:09:10 -07:00
block-sha1 sha1: provide another level of indirection for the SHA-1 functions 2015-11-05 10:35:11 -08:00
builtin Merge branch 'ar/diff-args-osx-precompose' into maint 2016-06-06 14:27:35 -07:00
ci travis-ci: build documentation 2016-05-10 11:19:07 -07:00
compat Merge branch 'kb/msys2-tty' into maint 2016-06-06 14:27:38 -07:00
contrib git-multimail: update to release 1.3.0 2016-05-03 14:04:27 -07:00
Documentation Git 2.8.4 2016-06-06 14:29:32 -07:00
ewah ewah: convert to REALLOC_ARRAY, etc 2016-02-22 14:51:09 -08:00
git-gui git-gui/po/glossary/txt-to-pot.sh: use the $( ... ) construct for command substitution 2015-12-27 15:33:13 -08:00
gitk-git Merge branch 'master' of git://ozlabs.org/~paulus/gitk 2016-03-20 18:05:10 -07:00
gitweb Merge branch 'sk/gitweb-highlight-encoding' into HEAD 2016-05-18 14:40:10 -07:00
mergetools mergetool: reorder vim/gvim buffers in three-way diffs 2016-02-12 10:14:09 -08:00
perl typofix: assorted typofixes in comments, documentation and messages 2016-05-06 13:16:37 -07:00
po l10n-2.8.0-rnd3-fr 2016-04-25 13:36:26 -07:00
ppc sha1: provide another level of indirection for the SHA-1 functions 2015-11-05 10:35:11 -08:00
refs set_worktree_head_symref(): fix error message 2016-04-08 10:26:23 -07:00
t Merge branch 'da/difftool' into maint 2016-06-06 14:27:37 -07:00
templates Merge branch 'ma/update-hooks-sample-typofix' into maint 2016-03-10 11:13:50 -08:00
vcs-svn strbuf: introduce starts_with() and ends_with() 2013-12-05 14:12:52 -08:00
xdiff Merge branch 'rj/xdiff-prepare-plug-leak-on-error-codepath' into maint 2016-04-14 18:57:46 -07:00
.gitattributes
.gitignore gitignore: ignore generated test-fake-ssh executable 2016-02-08 12:18:51 -08:00
.mailmap .mailmap: update to my shorter email address 2016-05-02 13:29:42 -07:00
.travis.yml Merge branch 'ls/travis-build-doc' into maint 2016-05-26 13:17:25 -07:00
abspath.c Windows: shorten code by re-using convert_slashes() 2016-04-04 18:03:02 -07:00
aclocal.m4
advice.c merge: grammofix in please-commit-before-merge message 2015-10-02 14:29:56 -07:00
advice.h pull: check if in unresolved merge state 2015-06-18 13:17:16 -07:00
alias.c convert trivial cases to ALLOC_ARRAY 2016-02-22 14:51:09 -08:00
alloc.c alloc: factor out commit index 2014-07-28 10:14:33 -07:00
archive-tar.c archive-tar: convert snprintf to xsnprintf 2016-05-26 10:44:26 -07:00
archive-zip.c Merge branch 'rs/archive-zip-many' into maint 2015-09-03 19:18:01 -07:00
archive.c use st_add and st_mult for allocation size computation 2016-02-22 14:51:09 -08:00
archive.h
argv-array.c argv-array: add detach function 2016-02-22 14:50:32 -08:00
argv-array.h argv-array: add detach function 2016-02-22 14:50:32 -08:00
attr.c Merge branch 'ss/exc-flag-is-a-collection-of-bits' into maint 2016-04-14 18:37:15 -07:00
attr.h
base85.c base85.c: have SP around arithmetic operators 2013-10-16 10:27:26 -07:00
bisect.c Merge branch 'jk/tighten-alloc' 2016-02-26 13:37:16 -08:00
bisect.h bisect: simplify the addition of new bisect terms 2015-08-03 11:42:41 -07:00
blob.c add object_as_type helper for casting objects 2014-07-28 10:14:33 -07:00
blob.h
branch.c branch -m: update all per-worktree HEADs 2016-04-04 12:57:22 -07:00
branch.h branch -m: update all per-worktree HEADs 2016-04-04 12:57:22 -07:00
builtin.h Merge branch 'sb/submodule-helper' 2015-10-05 12:30:19 -07:00
bulk-checkin.c use xsnprintf for generating git object headers 2015-09-25 10:18:18 -07:00
bulk-checkin.h cleanups: ensure that git-compat-util.h is included first 2014-09-15 12:05:14 -07:00
bundle.c bundle: don't leak an fd in case of early return 2016-04-01 10:33:18 -07:00
bundle.h
cache-tree.c Merge branch 'jk/tighten-alloc' into maint 2016-03-10 11:13:43 -08:00
cache-tree.h cache-tree: introduce write_index_as_tree() 2015-08-04 22:02:11 -07:00
cache.h Merge branch 'js/windows-dotgit' into maint 2016-05-26 13:17:23 -07:00
check_bindir check_bindir: avoid "test <cond> -a/-o <cond>" 2014-06-09 14:47:06 -07:00
check-builtins.sh check-builtins: strip executable suffix $X when enumerating builtins 2015-02-05 12:03:27 -08:00
check-racy.c
color.c color: add color_set helper for copying raw colors 2015-10-05 11:08:05 -07:00
color.h color: add color_set helper for copying raw colors 2015-10-05 11:08:05 -07:00
column.c use xmallocz to avoid size arithmetic 2016-02-22 14:51:09 -08:00
column.h
combine-diff.c use st_add and st_mult for allocation size computation 2016-02-22 14:51:09 -08:00
command-list.txt Merge branch 'nd/multiple-work-trees' 2015-07-13 14:02:02 -07:00
commit-slab.h Merge branch 'jc/commit-slab' 2015-08-03 11:01:21 -07:00
commit.c use st_add and st_mult for allocation size computation 2016-02-22 14:51:09 -08:00
commit.h Merge branch 'jk/date-mode-format' 2015-08-03 11:01:27 -07:00
common-main.c common-main: call git_extract_argv0_path() 2016-07-01 15:09:10 -07:00
config.c Merge branch 'tb/core-eol-fix' into maint 2016-06-06 14:27:36 -07:00
config.mak.in
config.mak.uname mingw: make isatty() recognize MSYS2's pseudo terminals (/dev/pty*) 2016-05-26 13:12:02 -07:00
configure.ac Merge branch 'ky/imap-send-openssl-1.1.0' into maint 2016-05-06 14:53:24 -07:00
connect.c Merge branch 'cn/deprecate-ssh-git-url' 2016-03-16 13:16:40 -07:00
connect.h connect & http: support -4 and -6 switches for remote operations 2016-02-12 11:34:14 -08:00
connected.c run-command: introduce CHILD_PROCESS_INIT 2014-08-20 09:53:37 -07:00
connected.h connected.c: add new variant that runs with --shallow-file 2013-12-10 16:14:18 -08:00
convert.c convert.c: ident + core.autocrlf didn't work 2016-04-25 12:12:03 -07:00
convert.h ls-files: add eol diagnostics 2016-01-18 19:48:43 -08:00
copy.c copy.c: make copy_fd() report its status silently 2015-05-19 14:48:54 -07:00
COPYING
credential-cache--daemon.c add an extra level of indirection to main() 2016-07-01 15:09:10 -07:00
credential-cache.c add an extra level of indirection to main() 2016-07-01 15:09:10 -07:00
credential-store.c add an extra level of indirection to main() 2016-07-01 15:09:10 -07:00
credential.c strbuf: introduce strbuf_getline_{lf,nul}() 2016-01-15 10:12:51 -08:00
credential.h credential: let helpers tell us to quit 2014-12-04 10:11:12 -08:00
csum-file.c sha1fd_check: die when we cannot open the file 2015-03-19 13:35:15 -07:00
csum-file.h Merge branch 'jk/pack-bitmap' 2014-12-12 14:31:42 -08:00
ctype.c kwset: use unsigned char to store values with high-bit set 2015-03-02 12:32:24 -08:00
daemon.c common-main: call git_extract_argv0_path() 2016-07-01 15:09:10 -07:00
date.c date: make "local" orthogonal to date format 2015-09-03 15:45:26 -07:00
decorate.c Remove get_object_hash. 2015-11-20 08:02:05 -05:00
decorate.h
delta.h comments: fix misuses of "nor" 2014-03-31 15:29:27 -07:00
diff-delta.c create_delta_index: simplify condition always evaluating to true 2013-08-18 12:56:23 -07:00
diff-lib.c Remove get_object_hash. 2015-11-20 08:02:05 -05:00
diff-no-index.c Merge branch 'nd/diff-with-path-params' into maint 2016-02-05 14:54:15 -08:00
diff.c Merge branch 'jk/tighten-alloc' into maint 2016-03-10 11:13:43 -08:00
diff.h Merge branch 'maint-2.5' into maint-2.6 2016-03-17 11:26:18 -07:00
diffcore-break.c diff -B -M: fix output for "copy and then rewrite" case 2014-10-23 16:17:09 -07:00
diffcore-delta.c use st_add and st_mult for allocation size computation 2016-02-22 14:51:09 -08:00
diffcore-order.c convert trivial cases to ALLOC_ARRAY 2016-02-22 14:51:09 -08:00
diffcore-pickaxe.c react to errors in xdi_diff 2015-09-28 14:57:10 -07:00
diffcore-rename.c Merge branch 'sg/diff-multiple-identical-renames' into maint 2016-04-29 14:15:55 -07:00
diffcore.h diff --stat: mark any file larger than core.bigfilethreshold binary 2014-08-18 10:16:45 -07:00
dir.c dir.c: remove dead function fnmatch_icase() 2016-04-22 14:07:45 -07:00
dir.h dir.c: remove dead function fnmatch_icase() 2016-04-22 14:07:45 -07:00
editor.c run-command: introduce CHILD_PROCESS_INIT 2014-08-20 09:53:37 -07:00
entry.c use xmallocz to avoid size arithmetic 2016-02-22 14:51:09 -08:00
environment.c Merge branch 'js/windows-dotgit' into maint 2016-05-26 13:17:23 -07:00
exec_cmd.c Merge branch 'ak/extract-argv0-last-dir-sep' into maint 2016-03-10 11:13:47 -08:00
exec_cmd.h prepare_{git,shell}_cmd: use argv_array 2016-02-22 14:51:09 -08:00
fast-import.c common-main: call git_extract_argv0_path() 2016-07-01 15:09:10 -07:00
fetch-pack.c fetch-pack: isolate sigpipe in demuxer thread 2016-04-20 13:33:56 -07:00
fetch-pack.h Merge branch 'nd/shallow-clone' 2014-01-17 12:21:20 -08:00
fmt-merge-msg.h
fsck.c fsck: detect and warn a commit with embedded NUL 2016-05-10 10:02:06 -07:00
fsck.h fsck: git receive-pack: support excluding objects from fsck'ing 2015-06-23 14:27:37 -07:00
generate-cmdlist.sh generate-cmdlist: re-implement as shell script 2015-08-25 11:24:31 -07:00
gettext.c introduce "format" date-mode 2015-06-29 11:39:10 -07:00
gettext.h Merge branch 'ye/http-accept-language' 2015-03-06 15:02:25 -08:00
git-add--interactive.perl Merge branch 'ak/add-i-empty-candidates' into maint 2015-02-24 22:10:42 -08:00
git-archimport.perl
git-bisect.sh bisect: allow setting any user-specified in 'git bisect start' 2015-08-03 11:42:43 -07:00
git-compat-util.h add an extra level of indirection to main() 2016-07-01 15:09:10 -07:00
git-cvsexportcommit.perl
git-cvsimport.perl Merge branch 'cn/cvsimport-perl-update' 2015-06-25 11:08:08 -07:00
git-cvsserver.perl typofix: assorted typofixes in comments, documentation and messages 2016-05-06 13:16:37 -07:00
git-difftool--helper.sh difftool/mergetool: make the form of yes/no questions consistent 2016-04-25 15:15:17 -07:00
git-difftool.perl difftool: handle unmerged files in dir-diff mode 2016-05-16 14:53:05 -07:00
git-filter-branch.sh Merge branch 'jk/filter-branch-no-index' into maint 2016-02-05 14:54:13 -08:00
git-instaweb.sh git-instaweb: use @SHELL_PATH@ instead of /bin/sh 2015-03-10 15:10:35 -07:00
git-merge-octopus.sh
git-merge-one-file.sh Merge branch 'jk/no-diff-emit-common' into maint 2016-03-10 11:13:42 -08:00
git-merge-resolve.sh
git-mergetool--lib.sh difftool/mergetool: make the form of yes/no questions consistent 2016-04-25 15:15:17 -07:00
git-mergetool.sh Merge branch 'nf/mergetool-prompt' into HEAD 2016-05-18 14:40:07 -07:00
git-p4.py git-p4: fix Git LFS pointer parsing 2016-04-28 10:03:13 -07:00
git-parse-remote.sh i18n: git-parse-remote.sh: mark strings for translation 2016-04-19 12:07:49 -07:00
git-quiltimport.sh git-quiltimport: add commandline option --series <file> 2015-09-01 11:10:07 -07:00
git-rebase--am.sh rebase: return non-zero error code if format-patch fails 2015-07-08 15:36:42 -07:00
git-rebase--interactive.sh rebase--interactive: avoid empty list in shell for-loop 2016-05-10 14:11:27 -07:00
git-rebase--merge.sh *.sh: avoid hardcoding $GIT_DIR/hooks/... 2014-12-01 11:00:13 -08:00
git-rebase.sh Merge branch 'jk/ok-to-fail-gc-auto-in-rebase' into maint 2016-02-05 14:54:13 -08:00
git-relink.perl
git-remote-testgit.sh transport-helper: do not request symbolic refs to remote helpers 2015-01-21 22:46:59 -08:00
git-request-pull.sh Merge branch 'lt/request-pull' 2014-05-19 10:35:36 -07:00
git-send-email.perl Merge branch 'jd/send-email-to-whom' into HEAD 2016-05-18 14:40:07 -07:00
git-sh-i18n.sh remove #!interpreter line from shell libraries 2013-11-26 14:23:56 -08:00
git-sh-setup.sh sane_grep: pass "-a" if grep accepts it 2016-03-10 15:35:43 -08:00
git-stash.sh Merge branch 'nk/stash-show-config' 2015-10-05 12:30:10 -07:00
git-submodule.sh Merge branch 'sb/submodule-deinit-all' into maint 2016-05-31 14:09:46 -07:00
git-svn.perl git-svn: fix URL canonicalization during init w/ SVN 1.7+ 2016-03-16 20:16:23 +00:00
GIT-VERSION-GEN Git 2.8.4 2016-06-06 14:29:32 -07:00
git-web--browse.sh git-web--browse.sh: use the $( ... ) construct for command substitution 2014-04-23 15:17:02 -07:00
git.c common-main: call git_extract_argv0_path() 2016-07-01 15:09:10 -07:00
git.rc Makefile: Fix compilation of Windows resource file 2014-01-23 10:00:28 -08:00
git.spec.in git.spec.in: use README.md, not README 2016-04-03 10:12:48 -07:00
gpg-interface.c verify-commit: add option to print raw gpg status information 2015-06-22 14:20:47 -07:00
gpg-interface.h verify-commit: add option to print raw gpg status information 2015-06-22 14:20:47 -07:00
graph.c convert trivial cases to ALLOC_ARRAY 2016-02-22 14:51:09 -08:00
graph.h
grep.c use xmallocz to avoid size arithmetic 2016-02-22 14:51:09 -08:00
grep.h grep: add color.grep.matchcontext and color.grep.matchselected 2014-10-28 10:33:50 -07:00
hashmap.c convert trivial cases to FLEX_ARRAY macros 2016-02-22 14:51:09 -08:00
hashmap.h hashmap: add string interning API 2014-07-07 13:56:38 -07:00
help.c convert trivial cases to FLEX_ARRAY macros 2016-02-22 14:51:09 -08:00
help.h
hex.c add reentrant variants of sha1_to_hex and find_unique_abbrev 2015-09-25 10:18:18 -07:00
http-backend.c common-main: call git_extract_argv0_path() 2016-07-01 15:09:10 -07:00
http-fetch.c common-main: call git_extract_argv0_path() 2016-07-01 15:09:10 -07:00
http-push.c common-main: call git_extract_argv0_path() 2016-07-01 15:09:10 -07:00
http-walker.c http-walker: store url in a strbuf 2015-09-25 10:18:18 -07:00
http.c Merge branch 'bn/http-cookiefile-config' into maint 2016-05-31 14:08:28 -07:00
http.h Merge branch 'ew/force-ipv4' 2016-02-24 13:25:54 -08:00
ident.c Merge branch 'da/user-useconfigonly' into HEAD 2016-05-18 14:40:05 -07:00
imap-send.c common-main: call git_extract_argv0_path() 2016-07-01 15:09:10 -07:00
INSTALL git-imap-send: use libcurl for implementation 2014-11-10 09:17:27 -08:00
khash.h convert trivial cases to ALLOC_ARRAY 2016-02-22 14:51:09 -08:00
kwset.c kwset: use unsigned char to store values with high-bit set 2015-03-02 12:32:24 -08:00
kwset.h kwset: use unsigned char to store values with high-bit set 2015-03-02 12:32:24 -08:00
levenshtein.c convert trivial cases to ALLOC_ARRAY 2016-02-22 14:51:09 -08:00
levenshtein.h
LGPL-2.1
line-log.c convert trivial cases to ALLOC_ARRAY 2016-02-22 14:51:09 -08:00
line-log.h line-log.c: make line_log_data_init() static 2015-01-15 11:05:47 -08:00
line-range.c
line-range.h
list-objects.c Merge branch 'jk/path-name-safety-2.6' into jk/path-name-safety-2.7 2016-03-16 10:42:32 -07:00
list-objects.h list-objects: pass full pathname to callbacks 2016-03-16 10:41:04 -07:00
ll-merge.c use xmallocz to avoid size arithmetic 2016-02-22 14:51:09 -08:00
ll-merge.h
lockfile.c lockfile: improve error message when lockfile exists 2016-03-01 10:16:46 -08:00
lockfile.h lockfile: remove function "hold_lock_file_for_append" 2015-08-28 11:32:01 -07:00
log-tree.c convert trivial cases to FLEX_ARRAY macros 2016-02-22 14:51:09 -08:00
log-tree.h Merge branch 'jn/parse-config-slot' 2014-10-20 12:23:48 -07:00
mailinfo.c strbuf: introduce strbuf_getline_{lf,nul}() 2016-01-15 10:12:51 -08:00
mailinfo.h mailinfo: remove calls to exit() and die() deep in the callchain 2015-10-21 15:59:34 -07:00
mailmap.c mailmap: do not resolve blobs in a non-repository 2016-03-06 17:19:11 -08:00
mailmap.h
Makefile add an extra level of indirection to main() 2016-07-01 15:09:10 -07:00
match-trees.c use xstrfmt to replace xmalloc + sprintf 2014-06-19 15:20:54 -07:00
merge-blobs.c Merge branch 'jk/no-diff-emit-common' into maint 2016-03-10 11:13:42 -08:00
merge-blobs.h
merge-recursive.c merge-recursive: find-renames resets threshold 2016-02-24 10:39:02 -08:00
merge-recursive.h merge-recursive: option to disable renames 2016-02-17 10:20:51 -08:00
merge.c Convert struct object to object_id 2015-11-20 08:02:05 -05:00
mergesort.c
mergesort.h
name-hash.c convert trivial cases to FLEX_ARRAY macros 2016-02-22 14:51:09 -08:00
notes-cache.c notes: allow treeish expressions as notes ref 2016-01-12 15:10:01 -08:00
notes-cache.h
notes-merge.c Remove get_object_hash. 2015-11-20 08:02:05 -05:00
notes-merge.h notes: extract enum notes_merge_strategy to notes-utils.h 2015-08-17 15:36:23 -07:00
notes-utils.c notes: allow treeish expressions as notes ref 2016-01-12 15:10:01 -08:00
notes-utils.h notes: extract parse_notes_merge_strategy to notes-utils 2015-08-17 15:38:32 -07:00
notes.c Merge branch 'jk/tighten-alloc' 2016-02-26 13:37:16 -08:00
notes.h Merge branch 'jk/notes-merge-from-anywhere' 2016-02-03 14:15:59 -08:00
object.c Remove get_object_hash. 2015-11-20 08:02:05 -05:00
object.h Remove get_object_hash. 2015-11-20 08:02:05 -05:00
pack-bitmap-write.c Merge branch 'jk/path-name-safety-2.6' into jk/path-name-safety-2.7 2016-03-16 10:42:32 -07:00
pack-bitmap.c Merge branch 'jk/path-name-safety-2.6' into jk/path-name-safety-2.7 2016-03-16 10:42:32 -07:00
pack-bitmap.h pack-bitmap.c: make pack_bitmap_filename() static 2015-01-15 11:04:10 -08:00
pack-check.c convert trivial cases to ALLOC_ARRAY 2016-02-22 14:51:09 -08:00
pack-objects.c use REALLOC_ARRAY for changing the allocation size of arrays 2014-09-18 09:13:42 -07:00
pack-objects.h pack-objects: implement bitmap writing 2013-12-30 12:19:22 -08:00
pack-revindex.c Merge branch 'jk/tighten-alloc' 2016-02-26 13:37:16 -08:00
pack-revindex.h pack-revindex: store entries directly in packed_git 2015-12-21 14:36:28 -08:00
pack-write.c pack-write: simplify index_pack_lockfile using skip_prefix() and xstrfmt() 2014-09-02 10:37:24 -07:00
pack.h finish_tmp_packfile():use strbuf for pathname construction 2014-03-03 12:15:10 -08:00
pager.c Merge branch 'jc/am-i-v-fix' into maint 2016-03-10 11:13:41 -08:00
parse-options-cb.c Merge branch 'kn/for-each-tag-branch' 2015-10-05 12:30:03 -07:00
parse-options.c parse-options: allow -h as a short option 2015-11-20 08:02:07 -05:00
parse-options.h parse-options: allow -h as a short option 2015-11-20 08:02:07 -05:00
patch-delta.c
patch-ids.c Remove get_object_hash. 2015-11-20 08:02:05 -05:00
patch-ids.h
path.c Merge branch 'lp/typofixes' into maint 2016-05-26 13:17:21 -07:00
pathspec.c convert trivial cases to ALLOC_ARRAY 2016-02-22 14:51:09 -08:00
pathspec.h Support pathspec magic :(exclude) and its short form :! 2013-12-06 13:00:39 -08:00
pkt-line.c pkt-line: show packets in async processes as "sideband" 2015-09-01 15:11:57 -07:00
pkt-line.h comments: fix misuses of "nor" 2014-03-31 15:29:27 -07:00
preload-index.c cache.h: rename cache_def_free to cache_def_clear 2014-07-13 10:12:37 -07:00
pretty.c Remove get_object_hash. 2015-11-20 08:02:05 -05:00
prio-queue.c prio-queue: make output stable with respect to insertion 2014-07-15 11:02:54 -07:00
prio-queue.h prio-queue: make output stable with respect to insertion 2014-07-15 11:02:54 -07:00
progress.c use xmallocz to avoid size arithmetic 2016-02-22 14:51:09 -08:00
progress.h
prompt.c prompt.c: remove git_getpass() nobody uses 2015-01-15 11:02:06 -08:00
prompt.h prompt.c: remove git_getpass() nobody uses 2015-01-15 11:02:06 -08:00
quote.c quote: move comment before sq_quote_buf() 2015-10-07 15:12:01 -07:00
quote.h ls-tree: remove path filtering logic in show_tree 2014-12-01 11:32:34 -08:00
reachable.c Merge branch 'maint-2.5' into maint-2.6 2016-03-17 11:26:18 -07:00
reachable.h pack-objects: match prune logic for discarding objects 2014-10-16 10:10:43 -07:00
read-cache.c Merge branch 'nd/ita-cleanup' into maint 2016-02-22 13:10:21 -08:00
README.md README.md: move down historical explanation about the name 2016-02-25 09:33:58 -08:00
ref-filter.c ref-filter.c: mark strings for translation 2016-02-29 14:27:58 -08:00
ref-filter.h branch.c: use 'ref-filter' APIs 2015-09-25 08:54:54 -07:00
reflog-walk.c Merge branch 'dk/reflog-walk-with-non-commit' into maint 2016-02-05 14:54:10 -08:00
reflog-walk.h convert "enum date_mode" into a struct 2015-06-29 11:39:07 -07:00
refs.c use st_add and st_mult for allocation size computation 2016-02-22 14:51:09 -08:00
refs.h refs: add a new function set_worktree_head_symref 2016-04-04 12:57:21 -07:00
RelNotes Git 2.8.4 2016-06-06 14:29:32 -07:00
remote-curl.c common-main: call git_extract_argv0_path() 2016-07-01 15:09:10 -07:00
remote-testsvn.c common-main: call git_extract_argv0_path() 2016-07-01 15:09:10 -07:00
remote.c Merge branch 'nd/remote-plural-ours-plus-theirs' into maint 2016-05-26 13:17:18 -07:00
remote.h remote: simplify remote_is_configured() 2016-02-16 13:33:12 -08:00
replace_object.c register_replace_ref(): rewrite to take an object_id argument 2015-05-25 12:19:35 -07:00
rerere.c Merge branch 'jk/rerere-xsnprintf' 2016-02-17 10:13:33 -08:00
rerere.h Merge branch 'jc/rerere' 2015-10-05 12:30:05 -07:00
resolve-undo.c resolve-undo: be specific what part of the index has changed 2014-06-13 11:49:38 -07:00
resolve-undo.h
revision.c Merge branch 'maint-2.5' into maint-2.6 2016-03-17 11:26:18 -07:00
revision.h Merge branch 'maint-2.5' into maint-2.6 2016-03-17 11:26:18 -07:00
run-command.c Merge branch 'jk/push-client-deadlock-fix' into HEAD 2016-05-18 14:40:06 -07:00
run-command.h Merge branch 'jk/push-client-deadlock-fix' into HEAD 2016-05-18 14:40:06 -07:00
send-pack.c send-pack: isolate sigpipe in demuxer thread 2016-04-20 13:33:53 -07:00
send-pack.h push: support signing pushes iff the server supports it 2015-08-19 12:58:45 -07:00
sequencer.c Merge branch 'jk/tighten-alloc' 2016-02-26 13:37:16 -08:00
sequencer.h Merge branch 'jc/conflict-hint' into cc/interpret-trailers-more 2014-11-10 09:56:39 -08:00
server-info.c Convert struct object to object_id 2015-11-20 08:02:05 -05:00
setup.c Merge branch 'jc/xstrfmt-null-with-prec-0' into maint 2016-05-02 14:24:14 -07:00
sh-i18n--envsubst.c add an extra level of indirection to main() 2016-07-01 15:09:10 -07:00
sha1_file.c Merge branch 'jk/pack-idx-corruption-safety' into maint 2016-03-10 11:13:46 -08:00
sha1_name.c Merge branch 'jk/tighten-alloc' into maint 2016-03-10 11:13:43 -08:00
sha1-array.c
sha1-array.h
sha1-lookup.c sha1-lookup: handle duplicates in sha1_pos() 2014-10-01 13:32:19 -07:00
sha1-lookup.h
shallow.c use st_add and st_mult for allocation size computation 2016-02-22 14:51:09 -08:00
shell.c common-main: call git_extract_argv0_path() 2016-07-01 15:09:10 -07:00
shortlog.h
show-index.c add an extra level of indirection to main() 2016-07-01 15:09:10 -07:00
sideband.c convert trivial sprintf / strcpy calls to xsnprintf 2015-09-25 10:18:18 -07:00
sideband.h
sigchain.c sigchain: add command to pop all common signals 2015-12-16 12:06:08 -08:00
sigchain.h sigchain: add command to pop all common signals 2015-12-16 12:06:08 -08:00
split-index.c typofix: assorted typofixes in comments, documentation and messages 2016-05-06 13:16:37 -07:00
split-index.h split-index: the reading part 2014-06-13 11:49:40 -07:00
strbuf.c Merge branch 'jk/getwholeline-getdelim-empty' into maint 2016-04-14 18:57:46 -07:00
strbuf.h Merge branch 'jc/strbuf-getline' 2016-01-28 16:10:14 -08:00
streaming.c Merge branch 'sb/plug-streaming-leak' 2015-04-14 11:49:09 -07:00
streaming.h
string-list.c string_list: use string-list API in unsorted_string_list_lookup() 2016-04-25 11:48:27 -07:00
string-list.h Merge branch 'sb/string-list' 2014-12-22 12:27:30 -08:00
submodule-config.c Merge branch 'sb/misc-cleanups' into HEAD 2016-05-18 14:40:15 -07:00
submodule-config.h push: add recurseSubmodules config option 2015-11-20 08:02:07 -05:00
submodule.c Merge branch 'jk/tighten-alloc' into maint 2016-03-10 11:13:43 -08:00
submodule.h Merge branch 'sb/submodule-parallel-fetch' 2016-01-12 15:16:54 -08:00
symlinks.c symlinks: remove PATH_MAX limitation 2014-07-07 11:22:42 -07:00
tag.c Remove get_object_hash. 2015-11-20 08:02:05 -05:00
tag.h gpg-interface: move parse_signature() to where it should be 2014-09-15 13:23:20 -07:00
tar.h
tempfile.c register_tempfile(): new function to handle an existing temporary file 2015-08-10 12:57:14 -07:00
tempfile.h register_tempfile(): new function to handle an existing temporary file 2015-08-10 12:57:14 -07:00
test-chmtime.c add an extra level of indirection to main() 2016-07-01 15:09:10 -07:00
test-config.c add an extra level of indirection to main() 2016-07-01 15:09:10 -07:00
test-ctype.c add an extra level of indirection to main() 2016-07-01 15:09:10 -07:00
test-date.c add an extra level of indirection to main() 2016-07-01 15:09:10 -07:00
test-delta.c add an extra level of indirection to main() 2016-07-01 15:09:10 -07:00
test-dump-cache-tree.c add an extra level of indirection to main() 2016-07-01 15:09:10 -07:00
test-dump-split-index.c add an extra level of indirection to main() 2016-07-01 15:09:10 -07:00
test-dump-untracked-cache.c add an extra level of indirection to main() 2016-07-01 15:09:10 -07:00
test-fake-ssh.c add an extra level of indirection to main() 2016-07-01 15:09:10 -07:00
test-genrandom.c add an extra level of indirection to main() 2016-07-01 15:09:10 -07:00
test-hashmap.c add an extra level of indirection to main() 2016-07-01 15:09:10 -07:00
test-index-version.c add an extra level of indirection to main() 2016-07-01 15:09:10 -07:00
test-line-buffer.c add an extra level of indirection to main() 2016-07-01 15:09:10 -07:00
test-match-trees.c add an extra level of indirection to main() 2016-07-01 15:09:10 -07:00
test-mergesort.c add an extra level of indirection to main() 2016-07-01 15:09:10 -07:00
test-mktemp.c add an extra level of indirection to main() 2016-07-01 15:09:10 -07:00
test-parse-options.c add an extra level of indirection to main() 2016-07-01 15:09:10 -07:00
test-path-utils.c add an extra level of indirection to main() 2016-07-01 15:09:10 -07:00
test-prio-queue.c add an extra level of indirection to main() 2016-07-01 15:09:10 -07:00
test-read-cache.c add an extra level of indirection to main() 2016-07-01 15:09:10 -07:00
test-regex.c add an extra level of indirection to main() 2016-07-01 15:09:10 -07:00
test-revision-walking.c add an extra level of indirection to main() 2016-07-01 15:09:10 -07:00
test-run-command.c add an extra level of indirection to main() 2016-07-01 15:09:10 -07:00
test-scrap-cache-tree.c add an extra level of indirection to main() 2016-07-01 15:09:10 -07:00
test-sha1-array.c add an extra level of indirection to main() 2016-07-01 15:09:10 -07:00
test-sha1.c add an extra level of indirection to main() 2016-07-01 15:09:10 -07:00
test-sha1.sh test-sha1.sh: use the $( ... ) construct for command substitution 2015-12-27 15:33:13 -08:00
test-sigchain.c add an extra level of indirection to main() 2016-07-01 15:09:10 -07:00
test-string-list.c add an extra level of indirection to main() 2016-07-01 15:09:10 -07:00
test-submodule-config.c add an extra level of indirection to main() 2016-07-01 15:09:10 -07:00
test-subprocess.c add an extra level of indirection to main() 2016-07-01 15:09:10 -07:00
test-svn-fe.c add an extra level of indirection to main() 2016-07-01 15:09:10 -07:00
test-urlmatch-normalization.c add an extra level of indirection to main() 2016-07-01 15:09:10 -07:00
test-wildmatch.c add an extra level of indirection to main() 2016-07-01 15:09:10 -07:00
thread-utils.c thread-utils.c: detect CPU count on older BSD-like systems 2015-03-10 15:13:28 -07:00
thread-utils.h pack-objects: set number of threads before checking and warning 2014-10-13 12:53:46 -07:00
trace.c trace: use strbuf for quote_crnl output 2015-09-25 10:18:18 -07:00
trace.h pkt-line: support tracing verbatim pack contents 2015-06-16 13:24:22 -07:00
trailer.c trailer.c: mark strings for translation 2016-02-29 14:27:58 -08:00
trailer.h interpret-trailers: add option for in-place editing 2016-01-14 12:22:17 -08:00
transport-helper.c typofix: assorted typofixes in comments, documentation and messages 2016-05-06 13:16:37 -07:00
transport.c Merge branch 'cn/deprecate-ssh-git-url' 2016-03-16 13:16:40 -07:00
transport.h connect & http: support -4 and -6 switches for remote operations 2016-02-12 11:34:14 -08:00
tree-diff.c Merge branch 'maint-2.4' into maint-2.5 2016-03-17 11:24:14 -07:00
tree-walk.c do_compare_entry: use already-computed path 2016-01-05 13:39:46 -08:00
tree-walk.h do_compare_entry: use already-computed path 2016-01-05 13:39:46 -08:00
tree.c Remove get_object_hash. 2015-11-20 08:02:05 -05:00
tree.h Merge branch 'jk/squelch-missing-link-warning-for-unreachable' into maint 2015-06-25 11:02:10 -07:00
unicode_width.h Update of unicode_width.h to Unicode Version 7.0 2014-06-18 10:53:45 -07:00
unimplemented.sh unimplemented.sh: use the $( ... ) construct for command substitution 2015-12-27 15:33:13 -08:00
unix-socket.c Merge branch 'rs/strbuf-getcwd' 2014-09-02 13:28:44 -07:00
unix-socket.h
unpack-trees.c i18n: unpack-trees: avoid substituting only a verb in sentences 2016-05-12 16:28:43 -07:00
unpack-trees.h
update_unicode.sh update_unicode.sh: delete the command group 2014-12-22 10:03:37 -08:00
upload-pack.c common-main: call git_extract_argv0_path() 2016-07-01 15:09:10 -07:00
url.c use strbuf_complete to conditionally append slash 2015-10-05 11:08:06 -07:00
url.h
urlmatch.c urlmatch.c: make match_urls() static 2015-01-15 11:05:48 -08:00
urlmatch.h urlmatch.c: make match_urls() static 2015-01-15 11:05:48 -08:00
usage.c vreportf: avoid intermediate buffer 2015-08-11 14:29:36 -07:00
userdiff.c userdiff: add support for Fountain documents 2015-07-23 14:44:51 -07:00
userdiff.h diff: clarify textconv interface 2016-02-22 10:40:35 -08:00
utf8.c utf8: add function to align a string into given strbuf 2015-09-17 10:02:48 -07:00
utf8.h typofix: assorted typofixes in comments, documentation and messages 2016-05-06 13:16:37 -07:00
varint.c cleanups: ensure that git-compat-util.h is included first 2014-09-15 12:05:14 -07:00
varint.h cleanups: ensure that git-compat-util.h is included first 2014-09-15 12:05:14 -07:00
version.c
version.h
versioncmp.c versionsort: support reorder prerelease suffixes 2015-02-27 13:38:22 -08:00
walker.c strbuf: introduce strbuf_getline_{lf,nul}() 2016-01-15 10:12:51 -08:00
walker.h
wildmatch.c typofix: assorted typofixes in comments, documentation and messages 2016-05-06 13:16:37 -07:00
wildmatch.h
worktree.c typofix: assorted typofixes in comments, documentation and messages 2016-05-06 13:16:37 -07:00
worktree.h worktree: add details to the worktree struct 2015-10-08 11:57:07 -07:00
wrap-for-bin.sh test: facilitate debugging Git executables in tests with gdb 2015-10-30 14:02:38 -07:00
wrapper.c wrapper.c: delete dead function git_mkstemps() 2016-04-22 14:07:55 -07:00
write_or_die.c write_or_die: handle EPIPE in async threads 2016-02-25 13:51:45 -08:00
ws.c use strchrnul() in place of strchr() and strlen() 2014-03-10 08:35:30 -07:00
wt-status.c Merge branch 'sb/misc-cleanups' into HEAD 2016-05-18 14:40:15 -07:00
wt-status.h wt-status: move #include "pathspec.h" to the header 2015-08-21 14:49:27 -07:00
xdiff-interface.c convert trivial cases to ALLOC_ARRAY 2016-02-22 14:51:09 -08:00
xdiff-interface.h xdiff: reject files larger than ~1GB 2015-09-28 14:57:23 -07:00
zlib.c zlib: initialize git_zstream in git_deflate_init{,_gzip,_raw} 2015-03-05 15:46:03 -08:00

README.md

Git - fast, scalable, distributed revision control system

Git is a fast, scalable, distributed revision control system with an unusually rich command set that provides both high-level operations and full access to internals.

Git is an Open Source project covered by the GNU General Public License version 2 (some parts of it are under different licenses, compatible with the GPLv2). It was originally written by Linus Torvalds with help of a group of hackers around the net.

Please read the file INSTALL for installation instructions.

Many Git online resources are accessible from http://git-scm.com/ including full documentation and Git related tools.

See Documentation/gittutorial.txt to get started, then see Documentation/giteveryday.txt for a useful minimum set of commands, and Documentation/git-commandname.txt for documentation of each command. If git has been correctly installed, then the tutorial can also be read with "man gittutorial" or "git help tutorial", and the documentation of each command with "man git-commandname" or "git help commandname".

CVS users may also want to read Documentation/gitcvs-migration.txt ("man gitcvs-migration" or "git help cvs-migration" if git is installed).

The user discussion and development of Git take place on the Git mailing list -- everyone is welcome to post bug reports, feature requests, comments and patches to git@vger.kernel.org (read Documentation/SubmittingPatches for instructions on patch submission). To subscribe to the list, send an email with just "subscribe git" in the body to majordomo@vger.kernel.org. The mailing list archives are available at http://news.gmane.org/gmane.comp.version-control.git/, http://marc.info/?l=git and other archival sites.

The maintainer frequently sends the "What's cooking" reports that list the current status of various development topics to the mailing list. The discussion following them give a good reference for project status, development direction and remaining tasks.

The name "git" was given by Linus Torvalds when he wrote the very first version. He described the tool as "the stupid content tracker" and the name as (depending on your mood):

  • random three-letter combination that is pronounceable, and not actually used by any common UNIX command. The fact that it is a mispronunciation of "get" may or may not be relevant.
  • stupid. contemptible and despicable. simple. Take your pick from the dictionary of slang.
  • "global information tracker": you're in a good mood, and it actually works for you. Angels sing, and a light suddenly fills the room.
  • "goddamn idiotic truckload of sh*t": when it breaks