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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 37a95862c6 alternates: re-allow relative paths from environment 
Commit 670c359da (link_alt_odb_entry: handle normalize_path
errors, 2016-10-03) regressed the handling of relative paths
in the GIT_ALTERNATE_OBJECT_DIRECTORIES variable. It's not
entirely clear this was ever meant to work, but it _has_
worked for several years, so this commit restores the
original behavior.

When we get a path in GIT_ALTERNATE_OBJECT_DIRECTORIES, we
add it the path to the list of alternate object directories
as if it were found in objects/info/alternates, but with one
difference: we do not provide the link_alt_odb_entry()
function with a base for relative paths. That function
doesn't turn it into an absolute path, and we end up feeding
the relative path to the strbuf_normalize_path() function.

Most relative paths break out of the top-level directory
(e.g., "../foo.git/objects"), and thus normalizing fails.
Prior to 670c359da, we simply ignored the error, and due to
the way normalize_path_copy() was implemented it happened to
return the original path in this case. We then accessed the
alternate objects using this relative path.

By storing the relative path in the alt_odb list, the path
is relative to wherever we happen to be at the time we do an
object lookup. That means we look from $GIT_DIR in a bare
repository, and from the top of the worktree in a non-bare
repository.

If this were being designed from scratch, it would make
sense to pick a stable location (probably $GIT_DIR, or even
the object directory) and use that as the relative base,
turning the result into an absolute path.  However, given
the history, at this point the minimal fix is to match the
pre-670c359da behavior.

We can do this simply by ignoring the error when we have no
relative base and using the original value (which we now
reliably have, thanks to strbuf_normalize_path()).

That still leaves us with a relative path that foils our
duplicate detection, and may act strangely if we ever
chdir() later in the process. We could solve that by storing
an absolute path based on getcwd(). That may be a good
future direction; for now we'll do just the minimum to fix
the regression.

The new t5615 script demonstrates the fix in its final three
tests. Since we didn't have any tests of the alternates
environment variable at all, it also adds some tests of
absolute paths.

Reported-by: Bryan Turner <bturner@atlassian.com>
Signed-off-by: Jeff King <peff@peff.net>
2016-11-08 15:28:22 -05:00
block-sha1 sha1: provide another level of indirection for the SHA-1 functions 2015-11-05 10:35:11 -08:00
builtin alternates: use fspathcmp to detect duplicates 2016-10-10 13:52:37 -07:00
ci travis-ci: build documentation 2016-05-10 11:19:07 -07:00
compat Merge branch 'rs/compat-strdup' into maint 2016-09-19 13:51:42 -07:00
contrib Merge branch 'rs/copy-array' 2016-10-03 13:30:33 -07:00
Documentation count-objects: report alternates via verbose mode 2016-10-10 13:52:37 -07:00
ewah ewah: convert to REALLOC_ARRAY, etc 2016-02-22 14:51:09 -08:00
git-gui Merge branch 'va/git-gui-i18n' 2016-10-03 13:30:37 -07:00
gitk-git Merge branch 'master' of git://ozlabs.org/~paulus/gitk 2016-03-20 18:05:10 -07:00
gitweb gitweb: use highlight's shebang detection 2016-09-25 16:39:11 -07:00
mergetools mergetools: add support for ExamDiff 2016-04-04 09:15:14 -07:00
perl git-svn: warn instead of dying when commit data is missing 2016-07-09 22:53:54 +00:00
po git-gui: l10n: add Portuguese translation 2016-09-26 07:18:33 -07:00
ppc sha1: provide another level of indirection for the SHA-1 functions 2015-11-05 10:35:11 -08:00
refs Merge branch 'mh/ref-store' 2016-09-19 13:47:19 -07:00
t alternates: re-allow relative paths from environment 2016-11-08 15:28:22 -05:00
templates push options: {pre,post}-receive hook learns about push options 2016-07-14 15:50:17 -07:00
vcs-svn Merge branch 'mr/vcs-svn-printf-ulong' into maint 2016-09-29 16:49:37 -07:00
xdiff Merge branch 'mh/diff-indent-heuristic' 2016-10-03 13:30:38 -07:00
.gitattributes .gitattributes: set file type for C files 2016-07-07 14:11:15 -07:00
.gitignore test helpers: move test-* to t/helper/ subdirectory 2016-04-15 10:12:19 -07:00
.mailmap add David Turner's Two Sigma address 2016-09-26 17:46:44 -07:00
.travis.yml Merge branch 'ls/travis-homebrew-path-fix' into maint 2016-09-29 16:49:45 -07:00
abspath.c Windows: shorten code by re-using convert_slashes() 2016-04-04 18:03:02 -07:00
aclocal.m4
advice.c i18n: advice: internationalize message for conflicts 2016-06-17 15:45:48 -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
apply.c introduce CHECKOUT_INIT 2016-09-22 13:42:18 -07:00
apply.h apply: learn to use a different index file 2016-09-07 12:29:54 -07:00
archive-tar.c Merge branch 'jk/big-and-future-archive-tar' 2016-08-12 09:47:37 -07:00
archive-zip.c Merge branch 'rs/archive-zip-many' into maint 2015-09-03 19:18:01 -07:00
archive.c i18n: archive: mark errors for translation 2016-08-09 12:44:59 -07:00
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
bisect.c Merge branch 'jk/printf-format' 2016-07-19 13:22:22 -07:00
bisect.h bisect: simplify the addition of new bisect terms 2015-08-03 11:42:41 -07:00
blob.c
blob.h
branch.c worktree.c: check whether branch is rebased in another worktree 2016-04-22 14:09:38 -07:00
branch.h worktree.c: check whether branch is rebased in another worktree 2016-04-22 14:09:38 -07:00
builtin.h builtin: convert textconv_object to use struct object_id 2016-09-07 12:59:42 -07:00
bulk-checkin.c use xsnprintf for generating git object headers 2015-09-25 10:18:18 -07:00
bulk-checkin.h
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 cache: convert struct cache_entry to use struct object_id 2016-09-07 12:59:42 -07:00
cache-tree.h cache-tree: introduce write_index_as_tree() 2015-08-04 22:02:11 -07:00
cache.h alternates: store scratch buffer as strbuf 2016-10-10 13:52:36 -07:00
check_bindir
check-builtins.sh check-builtins: strip executable suffix $X when enumerating builtins 2015-02-05 12:03:27 -08:00
check-racy.c check-racy.c: use error_errno() 2016-05-09 12:29:08 -07:00
color.c Merge branch 'jk/squelch-false-warning-from-gcc-o3' into maint 2016-09-19 13:51:41 -07:00
color.h Merge branch 'js/color-on-windows-comment' into maint 2016-07-28 11:25:55 -07:00
column.c use xmallocz to avoid size arithmetic 2016-02-22 14:51:09 -08:00
column.h
combine-diff.c Merge branch 'bc/cocci' 2016-07-19 13:22:16 -07:00
command-list.txt Merge branch 'nd/multiple-work-trees' 2015-07-13 14:02:02 -07:00
commit-slab.h Merge branch 'vs/typofix' 2016-08-12 09:47:37 -07:00
commit.c Merge branch 'rs/copy-array' 2016-10-03 13:30:33 -07:00
commit.h Merge branch 'rs/pull-signed-tag' 2016-08-19 15:34:14 -07:00
common-main.c mingw: declare main()'s argv as const 2016-07-06 08:11:47 -07:00
config.c Merge branch 'jk/setup-sequence-update' 2016-09-21 15:15:24 -07:00
config.mak.in
config.mak.uname Merge branch 'ew/build-time-pager-tweaks' 2016-08-08 14:48:44 -07:00
configure.ac Merge branch 'ew/autoconf-pthread' into maint 2016-08-10 11:55:21 -07:00
connect.c Merge branch 'va/i18n-more' 2016-09-26 16:09:18 -07:00
connect.h connect & http: support -4 and -6 switches for remote operations 2016-02-12 11:34:14 -08:00
connected.c check_connected: add progress flag 2016-07-20 12:11:09 -07:00
connected.h check_connected: add progress flag 2016-07-20 12:11:09 -07:00
convert.c convert: Correct NNO tests and missing LF will be replaced by CRLF 2016-08-14 13:45:52 -07:00
convert.h convert: unify the "auto" handling of CRLF 2016-07-06 11:53:51 -07:00
copy.c copy.c: use error_errno() 2016-05-09 12:29:08 -07:00
COPYING
credential-cache--daemon.c Merge branch 'jk/common-main-2.8' into jk/common-main 2016-07-06 10:02:57 -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 credential: let empty credential specs reset helper list 2016-02-26 10:58:14 -08:00
credential.h
csum-file.c sha1fd_check: die when we cannot open the file 2015-03-19 13:35:15 -07:00
csum-file.h
ctype.c kwset: use unsigned char to store values with high-bit set 2015-03-02 12:32:24 -08:00
daemon.c Merge branch 'jk/common-main' into maint 2016-09-08 21:35:51 -07:00
date.c date: add "unix" format 2016-07-27 14:15:51 -07:00
decorate.c Remove get_object_hash. 2015-11-20 08:02:05 -05:00
decorate.h
delta.h
diff-delta.c
diff-lib.c cache: convert struct cache_entry to use struct object_id 2016-09-07 12:59:42 -07:00
diff-no-index.c Merge branch 'jk/setup-sequence-update' 2016-09-21 15:15:24 -07:00
diff.c Merge branch 'js/regexec-buf' into maint 2016-09-29 16:49:45 -07:00
diff.h Merge branch 'mh/diff-indent-heuristic' 2016-09-26 16:09:16 -07:00
diffcore-break.c diff: rename struct diff_filespec's sha1_valid member 2016-06-28 11:39:02 -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 Merge branch 'js/regexec-buf' into maint 2016-09-29 16:49:45 -07:00
diffcore-rename.c pass constants as first argument to st_mult() 2016-08-01 14:01:03 -07:00
diffcore.h diff: rename struct diff_filespec's sha1_valid member 2016-06-28 11:39:02 -07:00
dir-iterator.c dir_iterator: new API for iterating over a directory tree 2016-06-20 11:38:21 -07:00
dir-iterator.h dir_iterator: new API for iterating over a directory tree 2016-06-20 11:38:21 -07:00
dir.c cache: convert struct cache_entry to use struct object_id 2016-09-07 12:59:42 -07:00
dir.h Merge branch 'mh/split-under-lock' 2016-07-25 14:13:32 -07:00
editor.c editor.c: use error_errno() 2016-05-09 12:29:08 -07:00
entry.c streaming: make stream_blob_to_fd take struct object_id 2016-09-07 12:59:42 -07:00
environment.c Merge branch 'jk/setup-sequence-update' 2016-09-21 15:15:24 -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 Merge branch 'jk/common-main' 2016-07-19 13:22:19 -07:00
fetch-pack.c fetch-pack: do not reset in_vain on non-novel acks 2016-09-23 12:37:45 -07:00
fetch-pack.h
fmt-merge-msg.h fmt-merge-msg: use branch.$name.description 2011-10-07 10:11:47 -07:00
fsck.c fsck: handle bad trees like other errors 2016-09-27 14:09:10 -07:00
fsck.h fsck: give the error function a chance to see the fsck_options 2016-07-18 11:35:00 -07:00
generate-cmdlist.sh generate-cmdlist: re-implement as shell script 2015-08-25 11:24:31 -07:00
gettext.c gettext: add is_utf8_locale() 2016-07-01 12:44:57 -07:00
gettext.h gettext: add is_utf8_locale() 2016-07-01 12:44:57 -07:00
git-add--interactive.perl diff: improve positioning of add/delete blocks in diffs 2016-09-19 10:25:11 -07:00
git-archimport.perl
git-bisect.sh i18n: unmark die messages for translation 2016-06-17 15:46:10 -07:00
git-compat-util.h Merge branch 'rs/copy-array' 2016-10-03 13:30:33 -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: always honor fatal error exit codes 2016-08-15 15:24:05 -07:00
git-difftool.perl difftool: use Git::* functions instead of passing around state 2016-07-28 14:01:55 -07:00
git-filter-branch.sh Merge branch 'jk/filter-branch-no-index' 2016-01-28 16:10:12 -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-octopus: do not capitalize "octopus" 2016-09-08 12:17:10 -07:00
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 Merge branch 'nf/mergetool-prompt' 2016-05-03 14:08:17 -07:00
git-mergetool.sh Merge branch 'nf/mergetool-prompt' into HEAD 2016-05-18 14:40:07 -07:00
git-p4.py Spelling fixes 2016-08-11 14:35:42 -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: update comment about FreeBSD /bin/sh 2016-06-17 11:04:38 -07:00
git-rebase--interactive.sh Merge branch 'rt/rebase-i-broken-insn-advise' into maint 2016-09-29 16:49:46 -07:00
git-rebase--merge.sh Merge branch 'em/newer-freebsd-shells-are-fine-with-returns' into maint 2016-07-06 13:06:41 -07:00
git-rebase.sh i18n: git-sh-setup.sh: mark strings for translation 2016-06-17 15:45:48 -07:00
git-relink.perl
git-remote-testgit.sh
git-request-pull.sh
git-send-email.perl Merge branch 'jc/send-email-skip-backup' 2016-07-11 10:31:04 -07:00
git-sh-i18n.sh i18n: rebase-interactive: mark here-doc strings for translation 2016-06-17 15:45:48 -07:00
git-sh-setup.sh Merge branch 'ew/build-time-pager-tweaks' 2016-08-08 14:48:44 -07:00
git-stash.sh i18n: stash: mark messages for translation 2016-09-21 10:20:43 -07:00
git-submodule.sh clone: pass --progress decision to recursive submodules 2016-09-22 11:22:47 -07:00
git-svn.perl git-svn: allow --version to work anywhere 2016-07-22 20:38:11 +00:00
GIT-VERSION-GEN Git 2.10.1 2016-10-03 13:24:18 -07:00
git-web--browse.sh
git.c Merge branch 'jk/setup-sequence-update' 2016-09-21 15:15:24 -07:00
git.rc
gpg-interface.c Merge branch 'lt/gpg-show-long-key-in-signature-verification-maint' into lt/gpg-show-long-key-in-signature-verification 2016-08-16 15:04:13 -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 graph: add support for --line-prefix on all graph-aware output 2016-08-31 18:07:09 -07:00
graph.h graph: add support for --line-prefix on all graph-aware output 2016-08-31 18:07:09 -07:00
grep.c Merge branch 'js/regexec-buf' into maint 2016-09-29 16:49:45 -07:00
grep.h Merge branch 'jc/grep-commandline-vs-configuration' into maint 2016-08-10 11:55:29 -07:00
hashmap.c convert trivial cases to FLEX_ARRAY macros 2016-02-22 14:51:09 -08:00
hashmap.h
help.c t0006: skip "far in the future" test when unsigned long is not long enough 2016-07-15 09:05:53 -07:00
help.h
hex.c Merge branch 'rs/hex2chr' into maint 2016-09-19 13:51:43 -07:00
http-backend.c Merge branch 'ew/http-backend-batch-headers' 2016-08-12 09:47:38 -07:00
http-fetch.c common-main: call git_setup_gettext() 2016-07-01 15:09:10 -07:00
http-push.c Merge branch 'jk/common-main' into maint 2016-09-08 21:35:51 -07:00
http-walker.c http-walker: reduce O(n) ops with doubly-linked list 2016-07-12 15:17:42 -07:00
http.c Merge branch 'ew/http-do-not-forget-to-call-curl-multi-remove-handle' into maint 2016-09-29 16:49:39 -07:00
http.h Merge branch 'ep/http-curl-trace' 2016-07-06 13:38:06 -07:00
ident.c Merge branch 'jk/ident-ai-canonname-could-be-null' into maint 2016-10-03 13:22:32 -07:00
imap-send.c die("bug"): report bugs consistently 2016-07-26 11:13:44 -07:00
INSTALL
iterator.h refs: introduce an iterator interface 2016-06-20 11:38:20 -07:00
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 Merge branch 'bc/cocci' 2016-07-19 13:22:16 -07:00
line-log.h
line-range.c
line-range.h
list-objects.c struct name_entry: use struct object_id instead of unsigned char sha1[20] 2016-04-25 14:23:42 -07:00
list-objects.h list-objects: pass full pathname to callbacks 2016-03-16 10:41:04 -07:00
list.h list: avoid incompatibility with *BSD sys/queue.h 2016-07-18 11:06:51 -07:00
ll-merge.c Merge branch 'jc/ll-merge-internal' 2016-05-17 14:38:32 -07:00
ll-merge.h
lockfile.c lockfile: improve error message when lockfile exists 2016-03-01 10:16:46 -08:00
lockfile.h mingw: ensure temporary file handles are not inherited by child processes 2016-08-23 09:09:55 -07:00
log-tree.c graph: add support for --line-prefix on all graph-aware output 2016-08-31 18:07:09 -07:00
log-tree.h
mailinfo.c Merge branch 'kd/mailinfo-quoted-string' 2016-10-03 13:30:38 -07:00
mailinfo.h mailinfo: handle in-body header continuations 2016-09-21 10:23:11 -07:00
mailmap.c Merge branch 'nd/error-errno' 2016-05-17 14:38:28 -07:00
mailmap.h
Makefile Merge branch 'js/regexec-buf' into maint 2016-09-29 16:49:45 -07:00
match-trees.c match-trees: convert several leaf functions to use struct object_id 2016-04-25 14:26:29 -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 branch 'rs/cocci' 2016-09-26 16:09:14 -07:00
merge-recursive.h merge-recursive: offer an option to retain the output in 'obuf' 2016-08-01 11:45:30 -07:00
merge.c sequencer: lib'ify checkout_fast_forward() 2016-09-09 11:24:52 -07:00
mergesort.c
mergesort.h
mru.c add generic most-recently-used list 2016-07-29 11:05:07 -07:00
mru.h add generic most-recently-used list 2016-07-29 11:05:07 -07:00
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 Merge branch 'va/i18n-more' 2016-09-26 16:09:18 -07:00
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 notes: convert init_notes to use struct object_id 2016-09-07 12:59:42 -07:00
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-check.c Merge branch 'jk/verify-packfile-gently' 2016-09-29 16:57:13 -07:00
pack-objects.c
pack-objects.h
pack-revindex.c use COPY_ARRAY 2016-09-25 16:44:13 -07:00
pack-revindex.h pack-revindex: store entries directly in packed_git 2015-12-21 14:36:28 -08:00
pack-write.c sha1_file: drop free_pack_by_name 2016-07-29 11:05:06 -07:00
pack.h fsck: use streaming interface for large blobs in pack 2016-07-13 09:15:29 -07:00
pager.c Merge branch 'jk/setup-sequence-update' 2016-09-21 15:15:24 -07:00
parse-options-cb.c Merge branch 'mh/diff-indent-heuristic' 2016-09-26 16:09:16 -07:00
parse-options.c parse-options.c: make OPTION_COUNTUP respect "unspecified" values 2016-05-05 11:52:45 -07:00
parse-options.h Merge branch 'mh/diff-indent-heuristic' 2016-09-26 16:09:16 -07:00
patch-delta.c
patch-ids.c patch-ids: refuse to compute patch-id for merge commit 2016-09-12 13:45:01 -07:00
patch-ids.h rebase: avoid computing unnecessary patch IDs 2016-08-11 14:39:16 -07:00
path.c Merge branch 'jk/diff-submodule-diff-inline' 2016-09-12 15:34:31 -07:00
pathspec.c use COPY_ARRAY 2016-09-25 16:44:13 -07:00
pathspec.h Merge branch 'bw/pathspec-remove-unused-extern-decl' into maint 2016-09-29 16:49:34 -07:00
pkt-line.c introduce hex2chr() for converting two hexadecimal digits to a character 2016-09-07 10:42:46 -07:00
pkt-line.h
preload-index.c
pretty.c Merge branch 'rs/c-auto-resets-attributes' 2016-09-26 16:09:15 -07:00
prio-queue.c
prio-queue.h
progress.c use xmallocz to avoid size arithmetic 2016-02-22 14:51:09 -08:00
progress.h
prompt.c
prompt.h
quote.c Merge branch 'nd/icase' 2016-07-19 13:22:17 -07:00
quote.h Merge branch 'nd/icase' into maint 2016-07-28 11:26:03 -07:00
reachable.c reachable.c: use error_errno() 2016-05-09 12:29:08 -07:00
reachable.h
read-cache.c Merge branch 'tg/add-chmod+x-fix' into maint 2016-09-29 16:49:47 -07:00
README.md README.md: format CLI commands with code syntax 2016-05-31 08:54:24 -07:00
ref-filter.c introduce hex2chr() for converting two hexadecimal digits to a character 2016-09-07 10:42:46 -07:00
ref-filter.h branch.c: use 'ref-filter' APIs 2015-09-25 08:54:54 -07:00
reflog-walk.c reflog: continue walking the reflog past root commits 2016-06-06 15:06:44 -07:00
reflog-walk.h convert "enum date_mode" into a struct 2015-06-29 11:39:07 -07:00
refs.c Merge branch 'bc/object-id' 2016-09-19 13:47:19 -07:00
refs.h Merge branch 'bc/object-id' 2016-09-19 13:47:19 -07:00
RelNotes Start preparing for 2.10.1 2016-09-19 13:54:50 -07:00
remote-curl.c Merge branch 'jk/common-main-2.8' into jk/common-main 2016-07-06 10:02:57 -07:00
remote-testsvn.c common-main: call git_extract_argv0_path() 2016-07-01 15:09:10 -07:00
remote.c use strbuf_addstr() for adding constant strings to a strbuf, part 2 2016-09-15 12:23:38 -07:00
remote.h Merge branch 'jk/push-force-with-lease-creation' into maint 2016-09-08 21:35:53 -07:00
replace_object.c register_replace_ref(): rewrite to take an object_id argument 2015-05-25 12:19:35 -07:00
rerere.c cache: convert struct cache_entry to use struct object_id 2016-09-07 12:59:42 -07:00
rerere.h Merge branch 'jc/rerere-multi' 2016-04-25 15:17:15 -07:00
resolve-undo.c cache: convert struct cache_entry to use struct object_id 2016-09-07 12:59:42 -07:00
resolve-undo.h
revision.c cache: convert struct cache_entry to use struct object_id 2016-09-07 12:59:42 -07:00
revision.h Merge branch 'lt/pretty-expand-tabs' 2016-04-13 14:12:36 -07:00
run-command.c Merge branch 'ab/hooks' 2016-08-19 15:34:16 -07:00
run-command.h run-command: add pipe_command helper 2016-06-17 17:03:56 -07:00
send-pack.c Merge branch 'rs/use-strbuf-addstr' into maint 2016-08-10 11:55:34 -07:00
send-pack.h push: accept push options 2016-07-14 15:50:41 -07:00
sequencer.c sequencer: ensure to release the lock when we could not read the index 2016-09-09 11:24:52 -07:00
sequencer.h
server-info.c server-info.c: use error_errno() 2016-05-09 12:29:08 -07:00
setup.c i18n: setup: mark error messages for translation 2016-08-09 12:44:59 -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 alternates: re-allow relative paths from environment 2016-11-08 15:28:22 -05:00
sha1_name.c alternates: store scratch buffer as strbuf 2016-10-10 13:52:36 -07:00
sha1-array.c
sha1-array.h
sha1-lookup.c
sha1-lookup.h
shallow.c pass constants as first argument to st_mult() 2016-08-01 14:01:03 -07:00
shell.c common-main: call git_setup_gettext() 2016-07-01 15:09:10 -07:00
shortlog.h shortlog: support outputting to streams other than stdout 2016-06-24 14:25:49 -07:00
show-index.c common-main: call git_setup_gettext() 2016-07-01 15:09:10 -07:00
sideband.c Merge branch 'lf/recv-sideband-cleanup' into maint 2016-08-08 14:21:41 -07:00
sideband.h sideband.c: make send_sideband() return void 2016-06-16 11:40:19 -07:00
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 use COPY_ARRAY 2016-09-25 16:44:13 -07:00
split-index.h
strbuf.c link_alt_odb_entry: handle normalize_path errors 2016-10-10 13:52:36 -07:00
strbuf.h link_alt_odb_entry: handle normalize_path errors 2016-10-10 13:52:36 -07:00
streaming.c Merge branch 'jc/verify-loose-object-header' 2016-10-03 13:30:36 -07:00
streaming.h streaming: make stream_blob_to_fd take struct object_id 2016-09-07 12:59:42 -07:00
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
submodule-config.c Merge branch 'sb/submodule-update-dot-branch' 2016-08-10 12:33:20 -07:00
submodule-config.h submodule-config: keep configured branch around 2016-08-01 14:42:07 -07:00
submodule.c alternates: provide helper for adding to alternates list 2016-10-10 13:52:36 -07:00
submodule.h diff: teach diff to display submodule difference with an inline diff 2016-08-31 18:07:10 -07:00
symlinks.c
tag.c verify-tag: move tag verification code to tag.c 2016-04-22 14:06:46 -07:00
tag.h verify-tag: move tag verification code to tag.c 2016-04-22 14:06:46 -07:00
tar.h
tempfile.c mingw: ensure temporary file handles are not inherited by child processes 2016-08-23 09:09:55 -07:00
tempfile.h mingw: ensure temporary file handles are not inherited by child processes 2016-08-23 09:09:55 -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
trace.c trace: do not fall back to stderr 2016-08-05 09:28:17 -07:00
trace.h pkt-line: support tracing verbatim pack contents 2015-06-16 13:24:22 -07:00
trailer.c die("bug"): report bugs consistently 2016-07-26 11:13:44 -07:00
trailer.h interpret-trailers: add option for in-place editing 2016-01-14 12:22:17 -08:00
transport-helper.c Spelling fixes 2016-08-11 14:35:42 -07:00
transport.c alternates: use a separate scratch space 2016-10-10 13:52:36 -07:00
transport.h push: accept push options 2016-07-14 15:50:41 -07:00
tree-diff.c Merge branch 'jk/avoid-unbounded-alloca' into maint 2016-07-06 13:06:39 -07:00
tree-walk.c fsck: handle bad trees like other errors 2016-09-27 14:09:10 -07:00
tree-walk.h fsck: handle bad trees like other errors 2016-09-27 14:09:10 -07:00
tree.c cache: convert struct cache_entry to use struct object_id 2016-09-07 12:59:42 -07:00
tree.h Merge branch 'jk/squelch-missing-link-warning-for-unreachable' into maint 2015-06-25 11:02:10 -07:00
unicode_width.h
unimplemented.sh unimplemented.sh: use the $( ... ) construct for command substitution 2015-12-27 15:33:13 -08:00
unix-socket.c
unix-socket.h
unpack-trees.c Merge branch 'rs/unpack-trees-reduce-file-scope-global' into maint 2016-09-29 16:49:36 -07:00
unpack-trees.h
update_unicode.sh
upload-pack.c Merge branch 'jk/common-main' into maint 2016-09-08 21:35:51 -07:00
url.c introduce hex2chr() for converting two hexadecimal digits to a character 2016-09-07 10:42:46 -07:00
url.h
urlmatch.c
urlmatch.h
usage.c Merge branch 'cc/apply-am' 2016-09-19 13:47:18 -07:00
userdiff.c userdiff: add built-in pattern for CSS 2016-06-03 14:45:56 -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
varint.h
version.c
version.h
versioncmp.c versionsort: support reorder prerelease suffixes 2015-02-27 13:38:22 -08:00
walker.c walker: let walker_say take arbitrary formats 2016-07-08 10:11:23 -07:00
walker.h walker: let walker_say take arbitrary formats 2016-07-08 10:11:23 -07:00
wildmatch.c typofix: assorted typofixes in comments, documentation and messages 2016-05-06 13:16:37 -07:00
wildmatch.h
worktree.c Merge branch 'nd/worktree-lock' 2016-07-28 10:34:42 -07:00
worktree.h worktree.c: add is_worktree_locked() 2016-06-13 11:53:14 -07:00
wrap-for-bin.sh wrap-for-bin.sh: regenerate bin-wrappers when switching branches 2016-05-10 13:23:34 -07:00
wrapper.c Merge branch 'sb/submodule-parallel-fetch' into maint 2016-07-28 11:26:02 -07:00
write_or_die.c write_or_die: drop write_or_whine_pipe() 2016-08-05 09:28:17 -07:00
ws.c
wt-status.c Merge branch 'rs/cocci' 2016-09-26 16:09:14 -07:00
wt-status.h status: print branch info with --porcelain=v2 --branch 2016-08-11 11:15:40 -07:00
xdiff-interface.c Merge branch 'js/regexec-buf' into maint 2016-09-29 16:49:45 -07:00
xdiff-interface.h Convert read_mmblob to take struct object_id. 2016-09-07 12:59:42 -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-.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