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Chungmin Lee cbbcd33957 regexec: work around macOS TRE leak on invalid UTF-8 
On macOS, the system regex engine leaks an internal buffer when
regexec() encounters an invalid multibyte sequence in a UTF-8 locale.
The line-by-line path can call regexec_buf() for each pattern on every
line, so "git grep" can leak repeatedly on a file containing invalid
UTF-8.  The total leak grows with the number of calls, and the per-call
allocation grows with the pattern's automaton.  In one case, grepping a
repository containing PDFs exhausted memory and caused the machine to
restart.

ce025ae4f6 (grep: disable lookahead on error, 2024-10-20) made "git
grep" fall back to line-by-line matching when regexec() reports an error
on invalid UTF-8.  That fallback cannot prevent this leak: the allocation
has already leaked when regexec() returns REG_ILLSEQ.

Avoid the leaking path by providing a Darwin-specific regexec_buf().
Walk the input with mbrtowc(), split it at bytes that cannot form a
complete multibyte character, and search each valid segment separately.
This preserves matches in valid text on either side of an invalid byte.

Search each segment with REG_STARTEND so match offsets remain relative to
the original buffer.  Set REG_NOTBOL and REG_NOTEOL for internal segment
boundaries so "^" and "$" do not match there.  Keep the flags clear at
the true beginning and end of the buffer.

Use the normal regexec_buf() path in single-byte locales, where no byte
can form an invalid multibyte sequence.  Use the bundled regex
implementation unchanged when NO_REGEX is enabled.

Declare the Darwin override in compat/darwin.h and map regexec_buf() to
darwin_regexec_buf().  This follows the platform override pattern used
by the other compatibility headers and leaves the common inline
implementation as the default.

There is no reliable way to detect a future macOS version in which the
system regex implementation has been fixed.  Even after a fix, Git will
need the workaround while it supports affected macOS releases, so treat
it as an indefinite compatibility workaround.

Add tests for matches before, after, and between invalid bytes, including
an offset check after an invalid byte.  Also check incomplete trailing
input and anchors at true and internal line boundaries.

Signed-off-by: Chungmin Lee <chungmin@chungminlee.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
 		2026-07-28 15:16:37 -07:00
.github ci: unify Linux images across GitLab and GitHub 2026-06-05 21:49:00 +09:00
Documentation Git 2.55 2026-06-29 07:58:39 -07:00
bin-wrappers
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block-sha1
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builtin Merge branch 'js/objects-larger-than-4gb-on-windows-more' 2026-06-21 16:41:38 -07:00
ci Merge branch 'ps/gitlab-ci-windows' 2026-06-22 20:05:03 -07:00
compat regexec: work around macOS TRE leak on invalid UTF-8 2026-07-28 15:16:37 -07:00
compiler-tricks
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contrib regexec: work around macOS TRE leak on invalid UTF-8 2026-07-28 15:16:37 -07:00
ewah cocci: extend MEMZERO_ARRAY() rules 2026-02-03 09:41:52 -08:00
git-gui Merge branch 'master' of https://github.com/j6t/git-gui 2026-06-12 05:41:50 -07:00
gitk-git Merge branch 'master' of https://github.com/j6t/gitk 2026-06-12 05:41:00 -07:00
gitweb gitweb: let page header grow on mobile for long wrapped project names 2026-02-17 11:49:13 -08:00
mergetools
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negotiator Merge branch 'ds/fetch-negotiation-options' 2026-05-27 14:15:45 +09:00
odb Merge branch 'js/objects-larger-than-4gb-on-windows-more' 2026-06-21 16:41:38 -07:00
oss-fuzz odb, packfile: use size_t for streaming object sizes 2026-05-09 11:25:31 +09:00
perl
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po Merge branch '2.55-uk-pr' of github.com:arkid15r/git-ukrainian-l10n 2026-06-28 19:25:08 +08:00
refs Merge branch 'kn/refs-fsck-skip-lock-files' 2026-05-27 14:15:44 +09:00
reftable doc: fix typos via codespell 2026-06-08 00:21:35 +09:00
sha1
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sha1collisiondetection@855827c583
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sha1dc
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sha256
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src Enable Rust by default 2026-04-09 17:25:36 -07:00
subprojects meson: wire up gitk and git-gui 2026-02-04 09:42:50 -08:00
t regexec: work around macOS TRE leak on invalid UTF-8 2026-07-28 15:16:37 -07:00
templates Merge branch 'pt/fsmonitor-watchman-sample-fix' 2026-03-10 14:23:23 -07:00
tools Merge branch 'rs/strbuf-add-oid-hex' 2026-06-09 10:04:50 +09:00
trace2
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xdiff Merge branch 'mm/diff-U-takes-no-negative-values' 2026-05-25 09:40:07 +09:00
.cirrus.yml
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.clang-format
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.editorconfig editorconfig: fix style not applying to subdirs anymore 2026-03-11 10:30:51 -07:00
.gitattributes Merge branch 'kw/gitattributes-typofix' 2026-06-21 16:41:37 -07:00
.gitignore Merge branch 'mm/git-url-parse' 2026-05-21 12:06:48 +09:00
.gitlab-ci.yml Merge branch 'ps/gitlab-ci-windows' 2026-06-22 20:05:03 -07:00
.gitmodules
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.mailmap .mailmap: update email address for Tian Yuchen 2026-03-09 12:46:34 -07:00
.tsan-suppressions transport-helper: fix TSAN race in transfer_debug() 2026-06-09 14:05:42 -07:00
CODE_OF_CONDUCT.md
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COPYING
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Cargo.toml
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GIT-BUILD-OPTIONS.in
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GIT-VERSION-FILE.in
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GIT-VERSION-GEN Git 2.55 2026-06-29 07:58:39 -07:00
INSTALL
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LGPL-2.1
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Makefile regexec: work around macOS TRE leak on invalid UTF-8 2026-07-28 15:16:37 -07:00
README.md
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RelNotes Start preparing for 2.54.1 2026-05-21 12:42:11 +09:00
SECURITY.md
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abspath.c
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abspath.h
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aclocal.m4
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add-interactive.c add-patch: allow disabling editing of hunks 2026-03-03 15:09:36 -08:00
add-interactive.h add-patch: split out `struct interactive_options` 2026-03-03 15:09:35 -08:00
add-patch.c Merge branch 'sp/add-patch-with-fewer-the-repository' 2026-04-07 14:59:26 -07:00
add-patch.h add-patch: allow disabling editing of hunks 2026-03-03 15:09:36 -08:00
advice.c
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advice.h
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alias.c alias: restore support for simple dotted aliases 2026-04-25 19:22:52 +09:00
alias.h
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alloc.c
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alloc.h
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apply.c odb: use size_t for object_info.sizep and the size APIs 2026-06-15 07:45:41 -07:00
apply.h apply: report input location in header parsing errors 2026-03-17 11:08:24 -07:00
archive-tar.c
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archive-zip.c
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archive.c odb: use size_t for object_info.sizep and the size APIs 2026-06-15 07:45:41 -07:00
archive.h
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attr.c odb: use size_t for object_info.sizep and the size APIs 2026-06-15 07:45:41 -07:00
attr.h
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banned.h
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base85.c
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base85.h
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bisect.c odb: use size_t for object_info.sizep and the size APIs 2026-06-15 07:45:41 -07:00
bisect.h
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blame.c odb: use size_t for object_info.sizep and the size APIs 2026-06-15 07:45:41 -07:00
blame.h
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blob.c
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blob.h
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bloom.c Merge branch 'cf/constness-fixes' 2026-03-23 09:20:29 -07:00
bloom.h
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branch.c
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branch.h environment: move "branch.autoSetupMerge" into `struct repo_config_values` 2026-02-26 07:22:53 -08:00
build.rs rust: add a build.rs script for tests 2026-02-07 17:41:03 -08:00
builtin.h Merge branch 'mm/git-url-parse' 2026-05-21 12:06:48 +09:00
bundle-uri.c
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bundle-uri.h
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bundle.c odb: use size_t for object_info.sizep and the size APIs 2026-06-15 07:45:41 -07:00
bundle.h
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cache-tree.c Merge branch 'jt/odb-transaction-write' 2026-05-27 14:15:45 +09:00
cache-tree.h cache-tree: allow writing in-memory index as tree 2026-03-03 15:09:36 -08:00
cbtree.c cbtree: allow using arbitrary wrapper structures for nodes 2026-05-15 04:50:45 +09:00
cbtree.h cbtree: allow using arbitrary wrapper structures for nodes 2026-05-15 04:50:45 +09:00
chdir-notify.c
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chdir-notify.h
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checkout.c
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checkout.h
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chunk-format.c
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chunk-format.h
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color.c color: add color_parse_quietly() 2026-02-23 13:23:41 -08:00
color.h color: add color_parse_quietly() 2026-02-23 13:23:41 -08:00
column.c
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column.h
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combine-diff.c Merge branch 'js/objects-larger-than-4gb-on-windows-more' 2026-06-21 16:41:38 -07:00
command-list.txt Merge branch 'mm/git-url-parse' 2026-05-21 12:06:48 +09:00
commit-graph.c Merge branch 'en/commit-graph-timestamp-fix' 2026-06-17 11:10:12 -07:00
commit-graph.h doc: fix typos via codespell 2026-06-08 00:21:35 +09:00
commit-reach.c Merge branch 'kk/commit-reach-optim' 2026-06-07 23:58:25 +09:00
commit-reach.h commit-reach: early exit paint_down_to_common for single merge-base 2026-05-12 09:33:43 +09:00
commit-slab-decl.h
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commit-slab-impl.h
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commit-slab.h
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commit.c Merge branch 'js/objects-larger-than-4gb-on-windows-more' 2026-06-21 16:41:38 -07:00
commit.h Merge branch 'kk/streaming-walk-pqueue' 2026-06-16 09:01:02 -07:00
common-exit.c
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common-init.c
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common-init.h
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common-main.c
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config.c Merge branch 'js/objects-larger-than-4gb-on-windows-more' 2026-06-21 16:41:38 -07:00
config.h Merge branch 'hn/config-typo-advice' 2026-06-15 07:41:59 -07:00
config.mak.dev Merge branch 'ps/clang-w-glibc-2.43-and-_Generic' into maint-2.54 2026-05-21 12:23:51 +09:00
config.mak.in
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config.mak.uname regexec: work around macOS TRE leak on invalid UTF-8 2026-07-28 15:16:37 -07:00
configure.ac
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connect.c Merge branch 'jk/connect-service-enum' 2026-06-02 16:15:28 +09:00
connect.h Merge branch 'jk/connect-service-enum' 2026-06-02 16:15:28 +09:00
connected.c Merge branch 'ed/check-connected-close-err-fd-2.53' 2026-05-31 10:00:36 +09:00
connected.h
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convert.c hex: add and use strbuf_add_oid_hex() 2026-05-14 15:59:25 +09:00
convert.h
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copy.c
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copy.h
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credential.c
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credential.h
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csum-file.c index-pack, unpack-objects: increase input buffer from 4 KiB to 128 KiB 2026-04-29 21:44:03 +09:00
csum-file.h docs: fix typos and grammar 2026-05-30 07:07:27 +09:00
ctype.c
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daemon.c Merge branch 'st/daemon-sockaddr-fixes' 2026-06-11 04:31:17 -07:00
date.c docs: fix typos 2026-06-05 22:27:24 +09:00
date.h
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decorate.c
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decorate.h
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delta-islands.c docs: fix typos and grammar 2026-05-30 07:07:27 +09:00
delta-islands.h
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delta.h packfile,delta: drop the `cast_size_t_to_ulong()` wrappers 2026-06-15 07:45:41 -07:00
diagnose.c
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diagnose.h
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diff-delta.c
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diff-lib.c Merge branch 'ps/commit-list-functions-renamed' 2026-02-13 13:39:25 -08:00
diff-merges.c
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diff-merges.h
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diff-no-index.c
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diff.c Merge branch 'js/objects-larger-than-4gb-on-windows-more' 2026-06-21 16:41:38 -07:00
diff.h diff: reject negative values for -U/--unified 2026-05-13 10:13:26 +09:00
diffcore-break.c Merge branch 'en/merge-ort-almost-wo-the-repository' 2026-03-04 10:53:02 -08:00
diffcore-delta.c cocci: extend MEMZERO_ARRAY() rules 2026-02-03 09:41:52 -08:00
diffcore-order.c
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diffcore-pickaxe.c docs: fix typos and grammar 2026-05-30 07:07:27 +09:00
diffcore-rename.c merge,diff: remove the_repository check before prefetching blobs 2026-02-21 18:34:06 -08:00
diffcore-rotate.c
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diffcore.h line-log: route -L output through the standard diff pipeline 2026-03-16 21:05:42 -07:00
dir-iterator.c
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dir-iterator.h
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dir.c Merge branch 'js/objects-larger-than-4gb-on-windows-more' 2026-06-21 16:41:38 -07:00
dir.h ignore: note info/exclude lives in GIT_COMMON_DIR, not GIT_DIR 2026-05-13 10:25:52 +09:00
editor.c
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editor.h
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entry.c Merge branch 'js/objects-larger-than-4gb-on-windows-more' 2026-06-21 16:41:38 -07:00
entry.h
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environment.c environment: move "warn_on_object_refname_ambiguity" into `struct repo_config_values` 2026-06-03 08:36:48 +09:00
environment.h Merge branch 'ob/more-repo-config-values' 2026-06-15 07:42:00 -07:00
exec-cmd.c
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exec-cmd.h
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fetch-negotiator.c
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fetch-negotiator.h negotiator: add have_sent() interface 2026-05-20 11:33:24 +09:00
fetch-pack.c Merge branch 'ds/fetch-negotiation-options' 2026-05-27 14:15:45 +09:00
fetch-pack.h fetch: add --negotiation-include option for negotiation 2026-05-20 11:33:24 +09:00
fmt-merge-msg.c odb: use size_t for object_info.sizep and the size APIs 2026-06-15 07:45:41 -07:00
fmt-merge-msg.h
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for-each-ref.h
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fsck.c odb: use size_t for object_info.sizep and the size APIs 2026-06-15 07:45:41 -07:00
fsck.h fsck: store repository in fsck options 2026-03-23 08:33:10 -07:00
fsmonitor--daemon.h
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fsmonitor-ipc.c fsmonitor: close inherited file descriptors and detach in daemon 2026-04-15 08:44:33 -07:00
fsmonitor-ipc.h
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fsmonitor-ll.h
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fsmonitor-path-utils.h
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fsmonitor-settings.c
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fsmonitor-settings.h
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fsmonitor.c
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fsmonitor.h
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gettext.c
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gettext.h
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git-archimport.perl
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git-compat-util.h regexec: work around macOS TRE leak on invalid UTF-8 2026-07-28 15:16:37 -07:00
git-curl-compat.h http: add support for HTTP 429 rate limit retries 2026-03-17 09:14:19 -07:00
git-cvsexportcommit.perl
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git-cvsimport.perl
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git-cvsserver.perl
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git-difftool--helper.sh
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git-filter-branch.sh
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git-instaweb.sh
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git-merge-octopus.sh
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git-merge-one-file.sh
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git-merge-resolve.sh
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git-mergetool--lib.sh
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git-mergetool.sh
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git-p4.py
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git-quiltimport.sh
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git-request-pull.sh
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git-send-email.perl Merge branch 'sp/send-email-validate-charset' 2026-03-12 10:56:05 -07:00
git-sh-i18n.sh
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git-sh-setup.sh
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git-submodule.sh
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git-svn.perl
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git-web--browse.sh
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git-zlib.c zlib: properly clamp to uLong 2026-06-18 09:46:56 -07:00
git-zlib.h git-zlib: handle data streams larger than 4GB 2026-05-09 11:25:31 +09:00
git.c Merge branch 'ps/setup-wo-the-repository' 2026-05-27 14:15:46 +09:00
git.rc.in
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gpg-interface.c fast-import: add 'abort-if-invalid' mode to '--signed-commits=<mode>' 2026-03-26 12:42:57 -07:00
gpg-interface.h fast-import: add 'abort-if-invalid' mode to '--signed-commits=<mode>' 2026-03-26 12:42:57 -07:00
graph.c graph: add truncation mark to capped lanes 2026-03-29 21:22:09 -07:00
graph.h
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grep.c odb: use size_t for object_info.sizep and the size APIs 2026-06-15 07:45:41 -07:00
grep.h
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hash-lookup.c
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hash-lookup.h
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hash.c object-name: simplify computing common prefixes 2026-03-20 13:16:42 -07:00
hash.h object-name: simplify computing common prefixes 2026-03-20 13:16:42 -07:00
hashmap.c
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hashmap.h
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help.c Merge branch 'jh/alias-i18n-fixes' into maint-2.54 2026-05-21 12:30:11 +09:00
help.h
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hex-ll.c
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hex-ll.h
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hex.c hex: add and use strbuf_add_oid_hex() 2026-05-14 15:59:25 +09:00
hex.h hex: add and use strbuf_add_oid_hex() 2026-05-14 15:59:25 +09:00
hook.c hook: allow hook.jobs=-1 to use all available CPU cores 2026-04-10 07:58:55 -07:00
hook.h Merge branch 'ak/typofixes' 2026-06-15 07:42:00 -07:00
http-backend.c setup: stop using `the_repository` in `enter_repo()` 2026-05-19 19:36:24 +09:00
http-fetch.c setup: stop using `the_repository` in `setup_git_directory_gently()` 2026-05-19 19:36:24 +09:00
http-push.c Merge branch 'js/objects-larger-than-4gb-on-windows-more' 2026-06-21 16:41:38 -07:00
http-walker.c Merge branch 'ps/odb-source-loose' 2026-06-11 04:31:18 -07:00
http.c Merge branch 'js/http-https-proxy-fix' 2026-06-28 15:18:24 -07:00
http.h http: extract http_reauth_prepare() from retry paths 2026-04-16 09:15:17 -07:00
ident.c
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ident.h
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imap-send.c setup: stop using `the_repository` in `setup_git_directory_gently()` 2026-05-19 19:36:24 +09:00
iterator.h
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json-writer.c
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json-writer.h
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khash.h
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kwset.c
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kwset.h
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levenshtein.c
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levenshtein.h
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line-log.c Merge branch 'mm/line-log-cleanup' 2026-06-11 04:31:17 -07:00
line-log.h line-log: integrate -L output with the standard log-tree pipeline 2026-05-29 14:06:21 +09:00
line-range.c
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line-range.h
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linear-assignment.c
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linear-assignment.h
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list-objects-filter-options.c setup: stop using `the_repository` in `upgrade_repository_format()` 2026-05-19 19:36:25 +09:00
list-objects-filter-options.h list-objects-filter-options: support 'auto' mode for --filter 2026-02-17 11:46:40 -08:00
list-objects-filter.c odb: use size_t for object_info.sizep and the size APIs 2026-06-15 07:45:41 -07:00
list-objects-filter.h
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list-objects.c odb: rename `odb_has_object()` flags 2026-03-31 20:43:14 -07:00
list-objects.h
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list.h
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lockfile.c Merge branch 'pc/lockfile-pid' 2026-02-17 13:30:41 -08:00
lockfile.h lockfile: add PID file for debugging stale locks 2026-01-22 12:15:46 -08:00
log-tree.c line-log: integrate -L output with the standard log-tree pipeline 2026-05-29 14:06:21 +09:00
log-tree.h
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loose.c loose: refactor object map to operate on `struct odb_source_loose` 2026-06-01 18:47:18 +09:00
loose.h loose: refactor object map to operate on `struct odb_source_loose` 2026-06-01 18:47:18 +09:00
ls-refs.c refs: generalize `refs_for_each_fullref_in_prefixes()` 2026-02-23 13:21:18 -08:00
ls-refs.h
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mailinfo.c Merge branch 'vp/http-rate-limit-retries' 2026-04-01 10:28:18 -07:00
mailinfo.h
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mailmap.c odb: use size_t for object_info.sizep and the size APIs 2026-06-15 07:45:41 -07:00
mailmap.h mailmap: drop global config variables 2026-02-20 08:13:58 -08:00
match-trees.c odb: use size_t for object_info.sizep and the size APIs 2026-06-15 07:45:41 -07:00
match-trees.h
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mem-pool.c global: constify some pointers that are not written to 2026-02-05 17:52:49 -08:00
mem-pool.h
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merge-blobs.c odb: use size_t for object_info.sizep and the size APIs 2026-06-15 07:45:41 -07:00
merge-blobs.h odb: use size_t for object_info.sizep and the size APIs 2026-06-15 07:45:41 -07:00
merge-ll.c
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merge-ll.h
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merge-ort-wrappers.c
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merge-ort-wrappers.h
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merge-ort.c odb: use size_t for object_info.sizep and the size APIs 2026-06-15 07:45:41 -07:00
merge-ort.h
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merge.c
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merge.h
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mergesort.h
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meson.build regexec: work around macOS TRE leak on invalid UTF-8 2026-07-28 15:16:37 -07:00
meson_options.txt Merge branch 'ak/typofixes' 2026-06-15 07:42:00 -07:00
midx-write.c Merge branch 'ak/typofixes' 2026-06-15 07:42:00 -07:00
midx.c repack: introduce `--write-midx=incremental` 2026-05-20 11:31:14 +09:00
midx.h repack: introduce `--write-midx=incremental` 2026-05-20 11:31:14 +09:00
name-hash.c
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name-hash.h
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notes-cache.c odb: use size_t for object_info.sizep and the size APIs 2026-06-15 07:45:41 -07:00
notes-cache.h
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notes-merge.c odb: use size_t for object_info.sizep and the size APIs 2026-06-15 07:45:41 -07:00
notes-merge.h
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notes-utils.c
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notes-utils.h
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notes.c odb: use size_t for object_info.sizep and the size APIs 2026-06-15 07:45:41 -07:00
notes.h
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object-file-convert.c Merge branch 'bc/sha1-256-interop-02' 2026-03-12 10:56:02 -07:00
object-file-convert.h
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object-file.c Merge branch 'js/objects-larger-than-4gb-on-windows-more' 2026-06-21 16:41:38 -07:00
object-file.h odb/source-loose: wire up `write_object_stream()` callback 2026-06-01 18:47:19 +09:00
object-name.c Merge branch 'ob/more-repo-config-values' 2026-06-15 07:42:00 -07:00
object-name.h object-name: turn INTERPRET_BRANCH_* constants into enum values 2026-03-18 12:52:29 -07:00
object.c odb: use size_t for object_info.sizep and the size APIs 2026-06-15 07:45:41 -07:00
object.h commit-reach: deduplicate queue entries in paint_down_to_common 2026-05-26 07:17:26 +09:00
odb.c odb: use size_t for object_info.sizep and the size APIs 2026-06-15 07:45:41 -07:00
odb.h Merge branch 'js/objects-larger-than-4gb-on-windows-more' 2026-06-21 16:41:38 -07:00
oid-array.c
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oid-array.h
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oidmap.c oidmap: make entry cleanup explicit in oidmap_clear 2026-03-05 11:16:18 -08:00
oidmap.h oidmap: make entry cleanup explicit in oidmap_clear 2026-03-05 11:16:18 -08:00
oidset.c
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oidset.h
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oidtree.c oidtree: add ability to store data 2026-05-15 04:50:45 +09:00
oidtree.h oidtree: add ability to store data 2026-05-15 04:50:45 +09:00
pack-bitmap-write.c pack-bitmap: build pseudo-merge bitmaps after regular bitmaps 2026-05-28 05:23:01 +09:00
pack-bitmap.c odb: use size_t for object_info.sizep and the size APIs 2026-06-15 07:45:41 -07:00
pack-bitmap.h pack-bitmap: cache object positions during fill 2026-05-28 05:23:01 +09:00
pack-check.c packfile: widen unpack_entry()'s size out-parameter to size_t 2026-06-15 07:45:40 -07:00
pack-mtimes.c
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pack-mtimes.h
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pack-objects.c
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pack-objects.h pack-objects: use size_t for in-core object sizes 2026-06-15 07:45:41 -07:00
pack-refs.c
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pack-refs.h
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pack-revindex.c Merge branch 'tb/incremental-midx-part-3.2' 2026-03-25 12:58:04 -07:00
pack-revindex.h
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pack-write.c
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pack.h builtin/fsck: stop using `the_repository` when checking packed objects 2026-03-23 08:33:11 -07:00
packfile.c odb: use size_t for object_info.sizep and the size APIs 2026-06-15 07:45:41 -07:00
packfile.h Merge branch 'js/objects-larger-than-4gb-on-windows-more' 2026-06-21 16:41:38 -07:00
pager.c pager: explicitly cast away strchr() constness 2026-04-01 22:08:51 -07:00
pager.h
…
parallel-checkout.c
…
parallel-checkout.h
…
parse-options-cb.c
…
parse-options.c docs: fix typos and grammar 2026-05-30 07:07:27 +09:00
parse-options.h parse-options: clarify what "negated" means for PARSE_OPT_NONEG 2026-05-13 10:13:26 +09:00
parse.c config: add a repo_config_get_uint() helper 2026-04-10 07:58:53 -07:00
parse.h config: add a repo_config_get_uint() helper 2026-04-10 07:58:53 -07:00
patch-delta.c packfile,delta: drop the `cast_size_t_to_ulong()` wrappers 2026-06-15 07:45:41 -07:00
patch-ids.c patch-ids: document intentional const-casting in patch_id_neq() 2026-03-09 12:45:19 -07:00
patch-ids.h patch-ids.h: add missing trailing parenthesis in documentation comment 2026-05-15 04:24:54 +09:00
path-walk.c odb: use size_t for object_info.sizep and the size APIs 2026-06-15 07:45:41 -07:00
path-walk.h path-walk: support `object:type` filter 2026-05-24 18:41:07 +09:00
path.c backfill: work with prefix pathspecs 2026-03-26 09:38:06 -07:00
path.h doc: fix typos via codespell 2026-06-08 00:21:35 +09:00
pathspec.c setup: stop using `the_repository` in `prefix_path()` 2026-05-19 19:36:24 +09:00
pathspec.h
…
pkt-line.c global: constify some pointers that are not written to 2026-02-05 17:52:49 -08:00
pkt-line.h pkt-line: make packet_reader.line non-const 2026-04-01 22:08:52 -07:00
preload-index.c
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preload-index.h
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pretty.c Merge branch 'rs/strbuf-add-oid-hex' 2026-06-09 10:04:50 +09:00
pretty.h
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prio-queue.c
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prio-queue.h
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progress.c
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progress.h
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promisor-remote.c Merge branch 'th/promisor-quiet-per-repo' 2026-06-09 10:04:50 +09:00
promisor-remote.h promisor-remote: document caller filtering contract 2026-05-15 04:24:54 +09:00
prompt.c
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prompt.h
…
protocol-caps.c odb: use size_t for object_info.sizep and the size APIs 2026-06-15 07:45:41 -07:00
protocol-caps.h
…
protocol.c
…
protocol.h
…
prune-packed.c
…
prune-packed.h
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pseudo-merge.c pack-bitmap: prevent pattern leak on pseudo-merge re-assignment 2026-05-12 10:36:18 +09:00
pseudo-merge.h
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quote.c quote: simplify internals of dequoting 2026-05-19 12:14:03 +09:00
quote.h quote: drop sq_dequote_to_argv() 2026-05-19 12:14:03 +09:00
range-diff.c range-diff: drop const to fix strstr() warnings 2026-04-01 22:08:53 -07:00
range-diff.h
…
reachable.c reachable: convert to use `odb_for_each_object()` 2026-01-26 08:26:08 -08:00
reachable.h
…
read-cache-ll.h read-cache: update add_files_to_cache take param ignored_too 2026-02-06 09:43:26 -08:00
read-cache.c odb: use size_t for object_info.sizep and the size APIs 2026-06-15 07:45:41 -07:00
read-cache.h
…
rebase-interactive.c
…
rebase-interactive.h
…
rebase.c
…
rebase.h
…
ref-filter.c odb: use size_t for object_info.sizep and the size APIs 2026-06-15 07:45:41 -07:00
ref-filter.h
…
reflog-walk.c global: constify some pointers that are not written to 2026-02-05 17:52:49 -08:00
reflog-walk.h
…
reflog.c odb: use size_t for object_info.sizep and the size APIs 2026-06-15 07:45:41 -07:00
reflog.h
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refs.c Merge branch 'ps/setup-centralize-odb-creation' 2026-06-15 07:42:00 -07:00
refs.h refs: return `ref_transaction_error` from `ref_transaction_update()` 2026-05-05 16:34:07 +09:00
refspec.c refspec: fix typo in comment 2026-03-23 21:27:17 -07:00
refspec.h
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remote-curl.c Merge branch 'ps/setup-wo-the-repository' 2026-05-27 14:15:46 +09:00
remote.c Merge branch 'ua/push-remote-group' 2026-06-09 10:04:50 +09:00
remote.h Merge branch 'ua/push-remote-group' 2026-06-09 10:04:50 +09:00
repack-cruft.c
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repack-filtered.c
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repack-geometry.c repack: introduce `--write-midx=incremental` 2026-05-20 11:31:14 +09:00
repack-midx.c repack: allow `--write-midx=incremental` without `--geometric` 2026-05-20 11:31:14 +09:00
repack-promisor.c Merge branch 'ps/odb-for-each-object' 2026-03-02 17:06:50 -08:00
repack.c repack: introduce `--write-midx=incremental` 2026-05-20 11:31:14 +09:00
repack.h repack: introduce `--write-midx=incremental` 2026-05-20 11:31:14 +09:00
replace-object.c
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replace-object.h
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replay.c Merge branch 'kh/free-commit-list' 2026-06-07 23:58:24 +09:00
replay.h docs: fix typos 2026-06-05 22:27:24 +09:00
repo-settings.c
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repo-settings.h
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repository.c setup: construct object database in `apply_repository_format()` 2026-06-05 21:49:39 +09:00
repository.h repository: stop initializing the object database in `repo_set_gitdir()` 2026-06-05 21:49:38 +09:00
rerere.c Merge branch 'js/objects-larger-than-4gb-on-windows-more' 2026-06-21 16:41:38 -07:00
rerere.h
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reset.c
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reset.h
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resolve-undo.c
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resolve-undo.h
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revision.c Merge branch 'kk/streaming-walk-pqueue' 2026-06-16 09:01:02 -07:00
revision.h Merge branch 'kk/streaming-walk-pqueue' 2026-06-16 09:01:02 -07:00
run-command.c Merge branch 'pt/fsmonitor-linux' 2026-05-31 10:00:38 +09:00
run-command.h Merge branch 'pt/fsmonitor-linux' 2026-05-31 10:00:38 +09:00
sane-ctype.h
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scalar.c setup: stop using `the_repository` in `setup_git_directory()` 2026-05-19 19:36:25 +09:00
send-pack.c Merge branch 'ds/fetch-negotiation-options' 2026-05-27 14:15:45 +09:00
send-pack.h send-pack: pass negotiation config in push 2026-05-20 11:33:24 +09:00
sequencer.c Merge branch 'rs/strbuf-add-oid-hex' 2026-06-09 10:04:50 +09:00
sequencer.h sequencer: teach autostash apply to take optional conflict marker labels 2026-04-29 21:46:03 +09:00
serve.c hash: use uint32_t for object_id algorithm 2026-02-07 17:41:01 -08:00
serve.h
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server-info.c
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server-info.h
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setup.c Merge branch 'ps/setup-centralize-odb-creation' 2026-06-15 07:42:00 -07:00
setup.h Merge branch 'ps/setup-centralize-odb-creation' 2026-06-15 07:42:00 -07:00
sh-i18n--envsubst.c
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sha1dc_git.c
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sha1dc_git.h
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shallow.c Merge branch 'rs/strbuf-add-oid-hex' 2026-06-09 10:04:50 +09:00
shallow.h Merge branch 'sp/shallow-deepen-relative-fix' 2026-03-04 10:52:59 -08:00
shared.mak
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shell.c
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shortlog.h
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sideband.c Merge branch 'rs/sideband-clear-line-before-print' 2026-05-19 09:57:46 +09:00
sideband.h sideband: offer to configure sanitizing on a per-URL basis 2026-03-06 13:52:28 -08:00
sigchain.c
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sigchain.h
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simple-ipc.h
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sparse-index.c environment: move "sparse_expect_files_outside_of_patterns" into `struct repo_config_values` 2026-06-03 08:36:48 +09:00
sparse-index.h
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split-index.c split-index: stop using the_repository and the_hash_algo 2026-03-19 12:01:24 -07:00
split-index.h
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stable-qsort.c
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statinfo.c environment: move "check_stat" into `struct repo_config_values` 2026-06-03 08:36:48 +09:00
statinfo.h
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strbuf.c Merge branch 'rs/strbuf-add-uint' 2026-06-09 10:04:50 +09:00
strbuf.h strbuf: add strbuf_add_uint() 2026-05-13 00:48:42 +09:00
string-list.c hook: move unsorted_string_list_remove() to string-list.[ch] 2026-03-25 14:00:45 -07:00
string-list.h hook: move unsorted_string_list_remove() to string-list.[ch] 2026-03-25 14:00:45 -07:00
strmap.c
…
strmap.h
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strvec.c
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strvec.h
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sub-process.c sub-process: use gentle handshake to avoid die() on startup failure 2026-06-02 07:48:57 +09:00
sub-process.h
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submodule-config.c odb: use size_t for object_info.sizep and the size APIs 2026-06-15 07:45:41 -07:00
submodule-config.h
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submodule.c Merge branch 'ob/more-repo-config-values' 2026-06-15 07:42:00 -07:00
submodule.h
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symlinks.c symlinks: use unsigned int for flags 2026-02-20 15:03:42 -08:00
symlinks.h symlinks: use unsigned int for flags 2026-02-20 15:03:42 -08:00
tag.c odb: use size_t for object_info.sizep and the size APIs 2026-06-15 07:45:41 -07:00
tag.h
…
tar.h
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tempfile.c builtin/maintenance: fix locking with "--detach" 2026-05-13 16:57:53 +09:00
tempfile.h builtin/maintenance: fix locking with "--detach" 2026-05-13 16:57:53 +09:00
thread-utils.c
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thread-utils.h
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tmp-objdir.c odb: stop including "odb/source.h" 2026-03-12 08:38:42 -07:00
tmp-objdir.h odb: move reparenting logic into respective subsystems 2026-03-05 11:45:15 -08:00
trace.c
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trace.h
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trace2.c
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trace2.h
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trailer.c trailer: change strbuf in-place in unfold_value() 2026-05-16 22:11:07 +09:00
trailer.h commit, tag: parse --trailer with OPT_STRVEC 2026-03-06 13:02:20 -08:00
transport-helper.c Merge branch 'ps/transport-helper-tsan-fix' 2026-06-17 11:10:11 -07:00
transport-internal.h connect: use "service" enum for "name" argument 2026-05-19 15:05:46 +09:00
transport.c Merge branch 'jk/connect-service-enum' 2026-06-02 16:15:28 +09:00
transport.h Merge branch 'jk/connect-service-enum' 2026-06-02 16:15:28 +09:00
tree-diff.c tree-diff: remove the usage of the_hash_algo global 2026-02-20 10:21:11 -08:00
tree-walk.c odb: use size_t for object_info.sizep and the size APIs 2026-06-15 07:45:41 -07:00
tree-walk.h docs: fix typos and grammar 2026-05-30 07:07:27 +09:00
tree.c odb: use size_t for object_info.sizep and the size APIs 2026-06-15 07:45:41 -07:00
tree.h
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unicode-width.h
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unimplemented.sh
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unix-socket.c
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unix-socket.h
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unix-stream-server.c
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unix-stream-server.h
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unpack-trees.c unpack-trees: use repository from index instead of global 2026-06-09 14:25:03 -07:00
unpack-trees.h
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upload-pack.c Merge branch 'ob/more-repo-config-values' 2026-06-15 07:42:00 -07:00
upload-pack.h
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url.c url: return URL_SCHEME_UNKNOWN instead of dying 2026-05-06 09:48:27 +09:00
url.h url: return URL_SCHEME_UNKNOWN instead of dying 2026-05-06 09:48:27 +09:00
urlmatch.c urlmatch: define url_parse function 2026-05-06 09:48:28 +09:00
urlmatch.h urlmatch: define url_parse function 2026-05-06 09:48:28 +09:00
usage.c
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userdiff.c userdiff: extend Scheme support to cover other Lisp dialects 2026-04-15 08:43:33 -07:00
userdiff.h
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utf8.c
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utf8.h
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varint.c
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varint.h
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version-def.h.in
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version.c version: stop using the_repository 2026-02-08 15:16:49 -08:00
version.h version: stop using the_repository 2026-02-08 15:16:49 -08:00
versioncmp.c
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versioncmp.h
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walker.c odb: rename `odb_has_object()` flags 2026-03-31 20:43:14 -07:00
walker.h
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wildmatch.c
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wildmatch.h
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worktree.c setup: stop using `the_repository` in `upgrade_repository_format()` 2026-05-19 19:36:25 +09:00
worktree.h worktree: rename get_worktree_from_repository() 2026-05-02 07:02:45 +09:00
wrapper.c Revert "wrapper: introduce writev(3p) wrappers" 2026-04-09 14:48:09 -07:00
wrapper.h Revert "wrapper: introduce writev(3p) wrappers" 2026-04-09 14:48:09 -07:00
write-or-die.c Revert "wrapper: introduce writev(3p) wrappers" 2026-04-09 14:48:09 -07:00
write-or-die.h Revert "wrapper: introduce writev(3p) wrappers" 2026-04-09 14:48:09 -07:00
ws.c
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ws.h
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wt-status.c setup: stop using `the_repository` in `setup_work_tree()` 2026-05-19 19:36:24 +09:00
wt-status.h
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xdiff-interface.c odb: use size_t for object_info.sizep and the size APIs 2026-06-15 07:45:41 -07:00
xdiff-interface.h checkout -m: autostash when switching branches 2026-04-29 21:46:03 +09:00

README.md

Build status

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 https://git-scm.com/ including full documentation and Git related tools.

See Documentation/gittutorial.adoc to get started, then see Documentation/giteveryday.adoc for a useful minimum set of commands, and Documentation/git-<commandname>.adoc 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.adoc (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 and Documentation/CodingGuidelines).

Those wishing to help with error message, usage and informational message string translations (localization l10) should see po/README.md (a po file is a Portable Object file that holds the translations).

To subscribe to the list, send an email to git+subscribe@vger.kernel.org (see https://subspace.kernel.org/subscribing.html for details). The mailing list archives are available at https://lore.kernel.org/git/, https://marc.info/?l=git and other archival sites.

Issues which are security relevant should be disclosed privately to the Git Security mailing list git-security@googlegroups.com.

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