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Elijah Newren 09d86a3b98 diff: fix out-of-bounds reads and NULL deref in diffstat UTF-8 truncation `f85b49f3d4` (diff: improve scaling of filenames in diffstat to handle UTF-8 chars, 2026-01-16) introduced a loop in show_stats() that calls utf8_width() repeatedly to skip leading characters until the displayed width fits. However, utf8_width() can return problematic values: - For invalid UTF-8 sequences, pick_one_utf8_char() sets the name pointer to NULL and utf8_width() returns 0. Since name_len does not change, the loop iterates once more and pick_one_utf8_char() dereferences the NULL pointer, crashing. - For control characters, utf8_width() returns -1, so name_len grows when it is expected to shrink. This can cause the loop to consume more characters than the string contains, reading past the trailing NUL. By default, fill_print_name() will C-quote filenames which escapes control characters and invalid bytes to printable text. That avoids this bug from being triggered; however, with core.quotePath=false, most characters are no longer escaped (though some control characters still are) and raw bytes can reach this code. Add tests exercising both failure modes with core.quotePath=false and a narrow --stat-name-width to force truncation: one with a bare 0xC0 byte (invalid UTF-8 lead byte, triggers NULL deref) and one with several C1 control characters (repeats of 0xC2 0x9F, causing the loop to read past the end of the string). The second test reliably catches the out-of-bounds read when run under ASan, though it may pass silently without sanitizers. Fix both issues by introducing utf8_ish_width(), a thin wrapper around utf8_width() that guarantees the pointer always advances and the returned width is never negative: - On invalid UTF-8 it restores the pointer, advances by one byte, and returns width 1 (matching the strlen()-based fallback used by utf8_strwidth()). - On a control character it returns 0 (matching utf8_strnwidth() which skips them). Also add a "&& *name" guard to the while-loop condition so it terminates at end-of-string even when utf8_strwidth()'s strlen() fallback causes name_len to exceed the sum of per-character widths. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>		2026-04-20 09:30:55 -07:00
.github	codeql: bump actions/cache from 4 to 5	2026-04-15 14:31:40 -07:00
Documentation	doc: fix grammar errors in submodule description	2026-04-16 21:22:01 -07:00
bin-wrappers	…
block-sha1	…
builtin	Merge branch 'ds/rev-list-maximal-only-optim'	2026-04-09 11:21:59 -07:00
ci	Merge branch 'ps/build-tweaks'	2026-03-27 11:00:01 -07:00
compat	Revert "compat/posix: introduce writev(3p) wrapper"	2026-04-09 14:48:24 -07:00
compiler-tricks	…
contrib	Revert "cmake: use writev(3p) wrapper as needed"	2026-04-09 14:47:28 -07:00
ewah	…
git-gui	Merge branch 'master' of https://github.com/j6t/git-gui	2026-03-21 09:25:58 -07:00
gitk-git	Merge branch 'master' of https://github.com/j6t/gitk	2026-03-21 09:25:10 -07:00
gitweb	…
mergetools	…
negotiator	use commit_stack instead of prio_queue in LIFO mode	2026-03-18 10:39:56 -07:00
odb	odb: use enum for `odb_write_object` flags	2026-03-31 20:43:13 -07:00
oss-fuzz	…
perl	…
po	Merge branch 'jx/i18n-fix' of github.com:jiangxin/gitk	2026-03-20 09:23:32 +01:00
refs	Merge branch 'jk/c23-const-preserving-fixes-more'	2026-04-09 11:21:59 -07:00
reftable	reftable/system: add abstraction to mmap files	2026-04-02 10:45:44 -07:00
sha1	…
sha1collisiondetection@855827c583	…
sha1dc	…
sha256	…
src	…
subprojects	…
t	diff: fix out-of-bounds reads and NULL deref in diffstat UTF-8 truncation	2026-04-20 09:30:55 -07:00
templates	Merge branch 'pt/fsmonitor-watchman-sample-fix'	2026-03-10 14:23:23 -07:00
tools	Merge branch 'rs/use-strvec-pushv'	2026-04-01 10:28:19 -07:00
trace2	…
xdiff	Merge branch 'yc/histogram-hunk-shift-fix'	2026-03-24 12:31:34 -07:00
.cirrus.yml	…
.clang-format	…
.editorconfig	editorconfig: fix style not applying to subdirs anymore	2026-03-11 10:30:51 -07:00
.gitattributes	…
.gitignore	gitk: ignore generated POT file	2026-03-20 09:31:04 +08:00
.gitlab-ci.yml	Merge branch 'ps/ci-gitlab-prepare-for-macos-14-deprecation'	2026-03-12 10:56:04 -07:00
.gitmodules	…
.mailmap	.mailmap: update email address for Tian Yuchen	2026-03-09 12:46:34 -07:00
.tsan-suppressions	…
CODE_OF_CONDUCT.md	…
COPYING	…
Cargo.toml	…
GIT-BUILD-OPTIONS.in	…
GIT-VERSION-FILE.in	…
GIT-VERSION-GEN	Git 2.54-rc2	2026-04-14 06:22:50 -07:00
INSTALL	…
LGPL-2.1	…
Makefile	Revert "compat/posix: introduce writev(3p) wrapper"	2026-04-09 14:48:24 -07:00
README.md	…
RelNotes	…
SECURITY.md	…
abspath.c	…
abspath.h	…
aclocal.m4	…
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	…
advice.h	…
alias.c	alias: treat empty subsection [alias ""] as plain [alias]	2026-02-26 13:06:49 -08:00
alias.h	…
alloc.c	…
alloc.h	…
apply.c	Merge branch 'jc/whitespace-incomplete-line'	2026-04-07 14:59:26 -07:00
apply.h	apply: report input location in header parsing errors	2026-03-17 11:08:24 -07:00
archive-tar.c	…
archive-zip.c	…
archive.c	…
archive.h	…
attr.c	…
attr.h	…
banned.h	…
base85.c	…
base85.h	…
bisect.c	Merge branch 'ps/for-each-ref-in-fixes'	2026-02-27 15:11:50 -08:00
bisect.h	…
blame.c	…
blame.h	…
blob.c	…
blob.h	…
bloom.c	Merge branch 'cf/constness-fixes'	2026-03-23 09:20:29 -07:00
bloom.h	…
branch.c	…
branch.h	environment: move "branch.autoSetupMerge" into `struct repo_config_values`	2026-02-26 07:22:53 -08:00
build.rs	…
builtin.h	…
bundle-uri.c	…
bundle-uri.h	…
bundle.c	…
bundle.h	…
cache-tree.c	Merge branch 'jd/cache-tree-trace-wo-the-repository'	2026-04-08 10:19:17 -07:00
cache-tree.h	cache-tree: allow writing in-memory index as tree	2026-03-03 15:09:36 -08:00
cbtree.c	oidtree: extend iteration to allow for arbitrary return codes	2026-03-20 13:16:22 -07:00
cbtree.h	oidtree: extend iteration to allow for arbitrary return codes	2026-03-20 13:16:22 -07:00
chdir-notify.c	…
chdir-notify.h	…
checkout.c	…
checkout.h	…
chunk-format.c	…
chunk-format.h	…
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	…
column.h	…
combine-diff.c	…
command-list.txt	…
commit-graph.c	Merge branch 'ps/commit-graph-overflow-fix'	2026-04-07 14:59:25 -07:00
commit-graph.h	…
commit-reach.c	commit-reach: simplify cleanup of remaining bitmaps in ahead_behind ()	2026-03-19 10:45:41 -07:00
commit-reach.h	…
commit-slab-decl.h	…
commit-slab-impl.h	…
commit-slab.h	…
commit.c	gpg-interface: allow sign_buffer() to use default signing key	2026-03-12 21:28:20 -07:00
commit.h	Merge branch 'ps/history-split'	2026-03-24 12:31:32 -07:00
common-exit.c	…
common-init.c	…
common-init.h	…
common-main.c	…
config.c	…
config.h	…
config.mak.dev	builds: move build scripts into "tools/"	2026-03-19 06:40:09 -07:00
config.mak.in	…
config.mak.uname	Revert "compat/posix: introduce writev(3p) wrapper"	2026-04-09 14:48:24 -07:00
configure.ac	…
connect.c	transport-helper, connect: use clean_on_exit to reap children on abnormal exit	2026-03-12 14:51:50 -07:00
connect.h	…
connected.c	check_connected(): fix leak of pack-index mmap	2026-03-06 13:51:03 -08:00
connected.h	…
convert.c	convert: add const to fix strchr() warnings	2026-04-01 22:08:50 -07:00
convert.h	…
copy.c	…
copy.h	…
credential.c	…
credential.h	…
csum-file.c	Merge branch 'ps/upload-pack-buffer-more-writes'	2026-03-24 12:31:34 -07:00
csum-file.h	Merge branch 'ps/upload-pack-buffer-more-writes'	2026-03-24 12:31:34 -07:00
ctype.c	…
daemon.c	…
date.c	…
date.h	…
decorate.c	…
decorate.h	…
delta-islands.c	…
delta-islands.h	…
delta.h	…
diagnose.c	…
diagnose.h	…
diff-delta.c	…
diff-lib.c	…
diff-merges.c	…
diff-merges.h	…
diff-no-index.c	…
diff.c	diff: fix out-of-bounds reads and NULL deref in diffstat UTF-8 truncation	2026-04-20 09:30:55 -07:00
diff.h	…
diffcore-break.c	Merge branch 'en/merge-ort-almost-wo-the-repository'	2026-03-04 10:53:02 -08:00
diffcore-delta.c	…
diffcore-order.c	…
diffcore-pickaxe.c	…
diffcore-rename.c	…
diffcore-rotate.c	…
diffcore.h	line-log: route -L output through the standard diff pipeline	2026-03-16 21:05:42 -07:00
dir-iterator.c	…
dir-iterator.h	…
dir.c	Merge branch 'cf/constness-fixes'	2026-03-23 09:20:29 -07:00
dir.h	…
editor.c	…
editor.h	…
entry.c	…
entry.h	…
environment.c	Merge branch 'ob/core-attributesfile-in-repository'	2026-03-05 10:04:49 -08:00
environment.h	Merge branch 'ob/core-attributesfile-in-repository'	2026-03-05 10:04:49 -08:00
exec-cmd.c	…
exec-cmd.h	…
fetch-negotiator.c	…
fetch-negotiator.h	…
fetch-pack.c	Merge branch 'ps/odb-cleanup'	2026-04-08 10:19:17 -07:00
fetch-pack.h	…
fmt-merge-msg.c	…
fmt-merge-msg.h	…
for-each-ref.h	…
fsck.c	fsck: drop USE_THE_REPOSITORY	2026-03-23 08:33:10 -07:00
fsck.h	fsck: store repository in fsck options	2026-03-23 08:33:10 -07:00
fsmonitor--daemon.h	…
fsmonitor-ipc.c	…
fsmonitor-ipc.h	…
fsmonitor-ll.h	…
fsmonitor-path-utils.h	…
fsmonitor-settings.c	…
fsmonitor-settings.h	…
fsmonitor.c	…
fsmonitor.h	…
gettext.c	…
gettext.h	…
git-archimport.perl	…
git-compat-util.h	git-compat-util: fix CONST_OUTPARAM typo and indentation	2026-04-06 08:22:57 -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	…
git-cvsimport.perl	…
git-cvsserver.perl	…
git-difftool--helper.sh	…
git-filter-branch.sh	…
git-instaweb.sh	…
git-merge-octopus.sh	…
git-merge-one-file.sh	…
git-merge-resolve.sh	…
git-mergetool--lib.sh	…
git-mergetool.sh	…
git-p4.py	…
git-quiltimport.sh	…
git-request-pull.sh	…
git-send-email.perl	Merge branch 'sp/send-email-validate-charset'	2026-03-12 10:56:05 -07:00
git-sh-i18n.sh	…
git-sh-setup.sh	…
git-submodule.sh	…
git-svn.perl	…
git-web--browse.sh	…
git-zlib.c	…
git-zlib.h	…
git.c	use strvec_pushv() to add another strvec	2026-03-24 12:26:58 -07:00
git.rc.in	…
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.h	…
grep.c	…
grep.h	…
hash-lookup.c	…
hash-lookup.h	…
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	…
hashmap.h	…
help.c	Merge branch 'jh/alias-i18n-fixes'	2026-03-10 14:23:24 -07:00
help.h	…
hex-ll.c	…
hex-ll.h	…
hex.c	refs/files-backend: drop const to fix strchr() warning	2026-04-01 22:08:53 -07:00
hex.h	refs/files-backend: drop const to fix strchr() warning	2026-04-01 22:08:53 -07:00
hook.c	hook: show disabled hooks in "git hook list"	2026-03-25 14:00:47 -07:00
hook.h	hook: show disabled hooks in "git hook list"	2026-03-25 14:00:47 -07:00
http-backend.c	refs: replace `refs_for_each_namespaced_ref()`	2026-02-23 13:21:19 -08:00
http-fetch.c	…
http-push.c	Merge branch 'jk/c23-const-preserving-fixes-more'	2026-04-09 11:21:59 -07:00
http-walker.c	odb: rename `odb_has_object()` flags	2026-03-31 20:43:14 -07:00
http.c	Merge branch 'jk/c23-const-preserving-fixes-more'	2026-04-09 11:21:59 -07:00
http.h	http: add support for HTTP 429 rate limit retries	2026-03-17 09:14:19 -07:00
ident.c	…
ident.h	…
imap-send.c	imap-send: move common code into function host_matches()	2026-03-11 15:25:15 -07:00
iterator.h	…
json-writer.c	…
json-writer.h	…
khash.h	…
kwset.c	…
kwset.h	…
levenshtein.c	…
levenshtein.h	…
line-log.c	line-log: route -L output through the standard diff pipeline	2026-03-16 21:05:42 -07:00
line-log.h	line-log: route -L output through the standard diff pipeline	2026-03-16 21:05:42 -07:00
line-range.c	…
line-range.h	…
linear-assignment.c	…
linear-assignment.h	…
list-objects-filter-options.c	list-objects-filter-options: avoid strbuf_split_str()	2026-03-11 11:08:53 -07:00
list-objects-filter-options.h	…
list-objects-filter.c	…
list-objects-filter.h	…
list-objects.c	odb: rename `odb_has_object()` flags	2026-03-31 20:43:14 -07:00
list-objects.h	…
list.h	…
lockfile.c	…
lockfile.h	…
log-tree.c	…
log-tree.h	…
loose.c	odb: embed base source in the "files" backend	2026-03-05 11:45:15 -08:00
loose.h	…
ls-refs.c	refs: generalize `refs_for_each_fullref_in_prefixes()`	2026-02-23 13:21:18 -08:00
ls-refs.h	…
mailinfo.c	Merge branch 'vp/http-rate-limit-retries'	2026-04-01 10:28:18 -07:00
mailinfo.h	…
mailmap.c	…
mailmap.h	…
match-trees.c	…
match-trees.h	…
mem-pool.c	…
mem-pool.h	…
merge-blobs.c	…
merge-blobs.h	…
merge-ll.c	…
merge-ll.h	…
merge-ort-wrappers.c	…
merge-ort-wrappers.h	…
merge-ort.c	…
merge-ort.h	…
merge.c	…
merge.h	…
mergesort.h	…
meson.build	Revert "compat/posix: introduce writev(3p) wrapper"	2026-04-09 14:48:24 -07:00
meson_options.txt	…
midx-write.c	MIDX: revert the default version to v1	2026-04-16 13:45:53 -07:00
midx.c	Merge branch 'tb/incremental-midx-part-3.2'	2026-03-25 12:58:04 -07:00
midx.h	midx: implement MIDX compaction	2026-02-24 11:16:34 -08:00
name-hash.c	…
name-hash.h	…
notes-cache.c	…
notes-cache.h	…
notes-merge.c	…
notes-merge.h	…
notes-utils.c	…
notes-utils.h	…
notes.c	odb: rename `odb_has_object()` flags	2026-03-31 20:43:14 -07:00
notes.h	…
object-file-convert.c	Merge branch 'bc/sha1-256-interop-02'	2026-03-12 10:56:02 -07:00
object-file-convert.h	…
object-file.c	Merge branch 'jt/index-fd-wo-repo-regression-fix-maint'	2026-04-08 10:20:51 -07:00
object-file.h	odb: use enum for `odb_write_object` flags	2026-03-31 20:43:13 -07:00
object-name.c	Merge branch 'ps/odb-generic-object-name-handling'	2026-04-06 15:42:49 -07:00
object-name.h	object-name: turn INTERPRET_BRANCH_* constants into enum values	2026-03-18 12:52:29 -07:00
object.c	Merge branch 'ps/fsck-stream-from-the-right-object-instance'	2026-03-05 10:04:49 -08:00
object.h	Merge branch 'ps/receive-pack-shallow-optim'	2026-03-02 17:06:53 -08:00
odb.c	odb: rename `odb_has_object()` flags	2026-03-31 20:43:14 -07:00
odb.h	odb: drop unneeded headers and forward decls	2026-03-31 20:43:14 -07:00
oid-array.c	…
oid-array.h	…
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	…
oidset.h	…
oidtree.c	oidtree: extend iteration to allow for arbitrary return codes	2026-03-20 13:16:22 -07:00
oidtree.h	oidtree: extend iteration to allow for arbitrary return codes	2026-03-20 13:16:22 -07:00
pack-bitmap-write.c	…
pack-bitmap.c	Merge branch 'tb/incremental-midx-part-3.2'	2026-03-25 12:58:04 -07:00
pack-bitmap.h	refs: rename `each_ref_fn`	2026-02-23 13:21:18 -08:00
pack-check.c	builtin/fsck: stop using `the_repository` when checking packed objects	2026-03-23 08:33:11 -07:00
pack-mtimes.c	…
pack-mtimes.h	…
pack-objects.c	…
pack-objects.h	…
pack-refs.c	…
pack-refs.h	…
pack-revindex.c	Merge branch 'tb/incremental-midx-part-3.2'	2026-03-25 12:58:04 -07:00
pack-revindex.h	…
pack-write.c	…
pack.h	builtin/fsck: stop using `the_repository` when checking packed objects	2026-03-23 08:33:11 -07:00
packfile.c	Merge branch 'ps/odb-cleanup'	2026-04-08 10:19:17 -07:00
packfile.h	Merge branch 'ps/odb-cleanup'	2026-04-08 10:19:17 -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	Merge branch 'rs/parse-options-duplicated-long-options'	2026-03-10 14:23:19 -07:00
parse-options.h	…
parse.c	…
parse.h	…
patch-delta.c	…
patch-ids.c	patch-ids: document intentional const-casting in patch_id_neq()	2026-03-09 12:45:19 -07:00
patch-ids.h	…
path-walk.c	Merge branch 'yc/path-walk-fix-error-reporting'	2026-04-07 14:59:26 -07:00
path-walk.h	…
path.c	backfill: work with prefix pathspecs	2026-03-26 09:38:06 -07:00
path.h	backfill: work with prefix pathspecs	2026-03-26 09:38:06 -07:00
pathspec.c	…
pathspec.h	…
pkt-line.c	…
pkt-line.h	pkt-line: make packet_reader.line non-const	2026-04-01 22:08:52 -07:00
preload-index.c	…
preload-index.h	…
pretty.c	Merge branch 'mf/format-patch-cover-letter-format'	2026-04-03 13:01:08 -07:00
pretty.h	…
prio-queue.c	…
prio-queue.h	…
progress.c	…
progress.h	…
promisor-remote.c	…
promisor-remote.h	…
prompt.c	…
prompt.h	…
protocol-caps.c	…
protocol-caps.h	…
protocol.c	…
protocol.h	…
prune-packed.c	…
prune-packed.h	…
pseudo-merge.c	pseudo-merge: fix disk reads from find_pseudo_merge()	2026-04-01 22:08:52 -07:00
pseudo-merge.h	…
quote.c	…
quote.h	…
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.h	…
read-cache-ll.h	…
read-cache.c	Merge branch 'ng/add-files-to-cache-wo-rename'	2026-04-08 10:19:18 -07:00
read-cache.h	…
rebase-interactive.c	…
rebase-interactive.h	…
rebase.c	…
rebase.h	…
ref-filter.c	Merge branch 'ps/refs-for-each'	2026-03-09 14:36:55 -07:00
ref-filter.h	…
reflog-walk.c	…
reflog-walk.h	…
reflog.c	odb: rename `odb_has_object()` flags	2026-03-31 20:43:14 -07:00
reflog.h	…
refs.c	Merge branch 'ps/odb-cleanup'	2026-04-08 10:19:17 -07:00
refs.h	object-name: turn INTERPRET_BRANCH_* constants into enum values	2026-03-18 12:52:29 -07:00
refspec.c	refspec: fix typo in comment	2026-03-23 21:27:17 -07:00
refspec.h	…
remote-curl.c	Merge branch 'kj/refspec-parsing-outside-repository'	2026-04-01 10:28:19 -07:00
remote.c	odb: rename `odb_has_object()` flags	2026-03-31 20:43:14 -07:00
remote.h	…
repack-cruft.c	…
repack-filtered.c	…
repack-geometry.c	…
repack-midx.c	…
repack-promisor.c	Merge branch 'ps/odb-for-each-object'	2026-03-02 17:06:50 -08:00
repack.c	…
repack.h	…
replace-object.c	…
replace-object.h	…
replay.c	Merge branch 'tc/replay-ref'	2026-04-08 10:19:18 -07:00
replay.h	replay: allow to specify a ref with option --ref	2026-04-01 21:34:25 -07:00
repo-settings.c	…
repo-settings.h	…
repository.c	Merge branch 'ps/object-counting'	2026-03-25 12:58:05 -07:00
repository.h	Merge branch 'bc/sha1-256-interop-02'	2026-03-12 10:56:02 -07:00
rerere.c	Merge branch 'jc/rerere-modern-strbuf-handling'	2026-03-27 11:00:03 -07:00
rerere.h	…
reset.c	…
reset.h	…
resolve-undo.c	…
resolve-undo.h	…
revision.c	Merge branch 'mm/line-log-use-standard-diff-output'	2026-04-07 14:59:27 -07:00
revision.h	revision: include object-name.h	2026-03-26 09:38:06 -07:00
run-command.c	Merge branch 'jk/c23-const-preserving-fixes-more'	2026-04-09 11:21:59 -07:00
run-command.h	Merge branch 'bk/run-command-wo-the-repository'	2026-03-19 09:54:56 -07:00
sane-ctype.h	…
scalar.c	…
send-pack.c	pkt-line: make packet_reader.line non-const	2026-04-01 22:08:52 -07:00
send-pack.h	…
sequencer.c	Merge branch 'sa/replay-revert'	2026-04-03 13:01:09 -07:00
sequencer.h	Merge branch 'sa/replay-revert'	2026-04-03 13:01:09 -07:00
serve.c	…
serve.h	…
server-info.c	…
server-info.h	…
setup.c	Merge branch 'ty/setup-error-tightening'	2026-03-16 10:48:14 -07:00
setup.h	Merge branch 'ty/setup-error-tightening'	2026-03-16 10:48:14 -07:00
sh-i18n--envsubst.c	…
sha1dc_git.c	…
sha1dc_git.h	…
shallow.c	odb: rename `odb_has_object()` flags	2026-03-31 20:43:14 -07:00
shallow.h	Merge branch 'sp/shallow-deepen-relative-fix'	2026-03-04 10:52:59 -08:00
shared.mak	…
shell.c	…
shortlog.h	…
sideband.c	Revert "sideband: use writev(3p) to send pktlines"	2026-04-09 14:47:51 -07:00
sideband.h	…
sigchain.c	…
sigchain.h	…
simple-ipc.h	…
sparse-index.c	environment: stop using core.sparseCheckout globally	2026-02-26 07:22:51 -08:00
sparse-index.h	…
split-index.c	split-index: stop using the_repository and the_hash_algo	2026-03-19 12:01:24 -07:00
split-index.h	…
stable-qsort.c	…
statinfo.c	…
statinfo.h	…
strbuf.c	Merge branch 'vp/http-rate-limit-retries'	2026-04-01 10:28:18 -07:00
strbuf.h	…
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	…
strvec.c	…
strvec.h	…
sub-process.c	…
sub-process.h	…
submodule-config.c	odb: stop including "odb/source.h"	2026-03-12 08:38:42 -07:00
submodule-config.h	…
submodule.c	Merge branch 'rs/use-strvec-pushv'	2026-04-01 10:28:19 -07:00
submodule.h	…
symlinks.c	…
symlinks.h	…
tag.c	…
tag.h	…
tar.h	…
tempfile.c	…
tempfile.h	…
thread-utils.c	…
thread-utils.h	…
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	…
trace.h	…
trace2.c	…
trace2.h	…
trailer.c	Merge branch 'vp/http-rate-limit-retries'	2026-04-01 10:28:18 -07:00
trailer.h	commit, tag: parse --trailer with OPT_STRVEC	2026-03-06 13:02:20 -08:00
transport-helper.c	Merge branch 'jk/c23-const-preserving-fixes-more'	2026-04-09 11:21:59 -07:00
transport-internal.h	…
transport.c	Merge branch 'ar/config-hook-cleanups'	2026-04-03 13:01:09 -07:00
transport.h	…
tree-diff.c	…
tree-walk.c	…
tree-walk.h	…
tree.c	…
tree.h	…
unicode-width.h	…
unimplemented.sh	…
unix-socket.c	…
unix-socket.h	…
unix-stream-server.c	…
unix-stream-server.h	…
unpack-trees.c	environment: stop using core.sparseCheckout globally	2026-02-26 07:22:51 -08:00
unpack-trees.h	…
upload-pack.c	Merge branch 'ps/upload-pack-buffer-more-writes'	2026-03-24 12:31:34 -07:00
upload-pack.h	…
url.c	…
url.h	…
urlmatch.c	…
urlmatch.h	…
usage.c	…
userdiff.c	…
userdiff.h	…
utf8.c	…
utf8.h	…
varint.c	…
varint.h	…
version-def.h.in	…
version.c	…
version.h	…
versioncmp.c	…
versioncmp.h	…
walker.c	odb: rename `odb_has_object()` flags	2026-03-31 20:43:14 -07:00
walker.h	…
wildmatch.c	…
wildmatch.h	…
worktree.c	Merge branch 'pw/worktree-reduce-the-repository'	2026-04-03 13:01:09 -07:00
worktree.h	Merge branch 'pw/worktree-reduce-the-repository'	2026-04-03 13:01:09 -07:00
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	…
ws.h	…
wt-status.c	Merge branch 'sp/wt-status-wo-the-repository'	2026-03-16 10:48:14 -07:00
wt-status.h	…
xdiff-interface.c	…
xdiff-interface.h	…

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 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