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Michael Montalbo 061a68e443 sub-process: use gentle handshake to avoid die() on startup failure When the configured subprocess command contains shell metacharacters (such as a space), prepare_shell_cmd() wraps it in "sh -c <cmd>". The shell itself always starts successfully, so start_command() returns zero even if the tool inside does not exist. The subsequent handshake then reads from a dead pipe and calls die() via the non-gentle packet_read_line(), killing the parent process instead of letting it handle the error. Before this change, a missing filter process at a path containing spaces produces a confusing error: $ git -c filter.myfilter.process="/path with space/tool" \ -c filter.myfilter.required=true add file.txt /path with space/tool: line 1: /path: No such file or directory fatal: the remote end hung up unexpectedly After this change, the proper error is reported: $ git ... add file.txt /path with space/tool: line 1: /path: No such file or directory error: could not read greeting from subprocess '/path with space/tool' error: initialization for subprocess '/path with space/tool' failed fatal: file.txt: clean filter 'myfilter' failed Switch the subprocess handshake from the dying packet_read_line() to packet_read_line_gently() so that a process that exits during startup produces an error return instead of killing the caller. This affects any subprocess consumer whose command path contains spaces. On Windows this routinely happens because programs live under "C:/Program Files/...", and MSYS2 path conversion can rewrite absolute paths to include that prefix. On POSIX it triggers whenever the configured path naturally contains a space or other metacharacter. convert.c (filter.<driver>.process, used by git-lfs and custom clean/smudge filters) is the primary affected consumer. Signed-off-by: Michael Montalbo <mmontalbo@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>		2026-06-02 07:48:57 +09:00
.github	Merge branch 'js/ci-show-breakage-in-dockerized-jobs'	2025-12-05 14:49:58 +09:00
Documentation	RelNotes: fully spell negation	2026-02-01 18:07:39 -08:00
bin-wrappers	…
block-sha1	…
builtin	Merge branch 'rs/tree-wo-the-repository'	2026-01-21 16:16:28 -08:00
ci	Merge branch 'js/ci-leak-skip-svn'	2026-01-23 13:34:36 -08:00
compat	Merge branch 'js/symlink-windows'	2026-01-23 13:34:37 -08:00
compiler-tricks	…
contrib	Revert "Merge branch 'cs/rebased-subtree-split'"	2026-01-25 22:37:35 -08:00
ewah	git-compat-util: introduce MEMZERO_ARRAY() macro	2025-12-11 14:44:43 +09:00
git-gui	Merge branch 'master' of https://github.com/j6t/git-gui	2026-01-25 09:08:06 -08:00
gitk-git	Merge branch 'master' of https://github.com/j6t/gitk	2025-11-26 09:35:09 -08:00
gitweb	…
mergetools	…
negotiator	…
odb	packfile: move packfile store into object source	2026-01-09 06:40:07 -08:00
oss-fuzz	…
perl	…
po	Merge branch 'jx/zh_CN' of github.com:jiangxin/git	2026-01-31 21:32:54 +08:00
refs	refs/reftable: introduce generic checks for refs	2026-01-12 06:55:41 -08:00
reftable	…
sha1	…
sha1collisiondetection@855827c583	…
sha1dc	…
sha256	…
src	rust: build correctly without GNU sed	2025-12-19 17:57:26 +09:00
subprojects	meson: ignore subprojects/.wraplock	2025-12-05 11:11:00 +09:00
t	sub-process: use gentle handshake to avoid die() on startup failure	2026-06-02 07:48:57 +09:00
templates	…
trace2	…
xdiff	Merge branch 'yc/xdiff-patience-optim'	2025-12-09 07:54:55 +09:00
.cirrus.yml	…
.clang-format	…
.editorconfig	…
.gitattributes	git-gui: mark *.po files at any directory level as UTF-8	2026-01-25 10:53:08 +01:00
.gitignore	…
.gitlab-ci.yml	…
.gitmodules	…
.mailmap	Merge branch 'pw/mailmap-self'	2026-01-23 13:34:36 -08:00
.tsan-suppressions	…
CODE_OF_CONDUCT.md	…
COPYING	…
Cargo.toml	…
GIT-BUILD-OPTIONS.in	…
GIT-VERSION-FILE.in	…
GIT-VERSION-GEN	Git 2.53	2026-02-01 18:15:01 -08:00
INSTALL	…
LGPL-2.1	…
Makefile	utf8.c: enable workaround for iconv under macOS 14/15	2026-01-12 12:00:39 -08:00
README.md	…
RelNotes	…
SECURITY.md	…
abspath.c	…
abspath.h	…
aclocal.m4	…
add-interactive.c	add-interactive: use repo_parse_tree_indirect()	2026-01-09 18:36:16 -08:00
add-interactive.h	…
add-patch.c	…
advice.c	…
advice.h	…
alias.c	…
alias.h	…
alloc.c	…
alloc.h	…
apply.c	Merge branch 'js/test-symlink-windows'	2025-12-30 12:58:19 +09:00
apply.h	…
archive-tar.c	streaming: drop redundant type and size pointers	2025-11-23 12:56:46 -08:00
archive-zip.c	streaming: drop redundant type and size pointers	2025-11-23 12:56:46 -08:00
archive.c	cocci: convert parse_tree functions to repo_ variants	2026-01-09 18:36:18 -08:00
archive.h	…
attr.c	…
attr.h	…
banned.h	banned.h: ban mktemp(3)	2025-12-07 07:28:13 +09:00
base85.c	…
base85.h	…
bisect.c	…
bisect.h	…
blame.c	…
blame.h	…
blob.c	…
blob.h	…
bloom.c	bloom: use repo_parse_tree()	2026-01-09 18:36:16 -08:00
bloom.h	…
branch.c	branch: advice using git-help(1) instead of man(1)	2025-12-03 00:16:05 -08:00
branch.h	…
builtin.h	builtin.h: update documentation	2026-01-09 06:37:02 -08:00
bundle-uri.c	bundle-uri: validate that bundle entries have a uri	2025-12-20 14:45:27 +09:00
bundle-uri.h	…
bundle.c	…
bundle.h	…
cache-tree.c	cocci: convert parse_tree functions to repo_ variants	2026-01-09 18:36:18 -08:00
cache-tree.h	…
cbtree.c	…
cbtree.h	…
chdir-notify.c	chdir-notify: add function to unregister listeners	2025-11-25 12:16:00 -08:00
chdir-notify.h	chdir-notify: add function to unregister listeners	2025-11-25 12:16:00 -08:00
check-builtins.sh	…
checkout.c	…
checkout.h	…
chunk-format.c	…
chunk-format.h	…
color.c	…
color.h	…
column.c	…
column.h	…
combine-diff.c	…
command-list.txt	…
commit-graph.c	Merge branch 'ps/read-object-info-improvements'	2026-01-21 08:29:00 -08:00
commit-graph.h	…
commit-reach.c	commit-reach: use commit_stack	2025-12-25 08:29:29 +09:00
commit-reach.h	…
commit-slab-decl.h	…
commit-slab-impl.h	…
commit-slab.h	…
commit.c	Revert "Merge branch 'ar/run-command-hook'"	2026-01-15 13:02:38 -08:00
commit.h	commit: add commit_stack_grow()	2025-12-25 08:29:28 +09:00
common-exit.c	…
common-init.c	…
common-init.h	…
common-main.c	…
config.c	Merge branch 'rs/parse-config-expiry-simplify'	2026-01-06 16:33:53 +09:00
config.h	…
config.mak.dev	…
config.mak.in	…
config.mak.uname	utf8.c: enable workaround for iconv under macOS 14/15	2026-01-12 12:00:39 -08:00
configure.ac	…
connect.c	connect: plug protocol capability leak	2025-12-09 07:11:42 +09:00
connect.h	…
connected.c	…
connected.h	…
convert.c	…
convert.h	…
copy.c	…
copy.h	…
credential.c	…
credential.h	…
csum-file.c	…
csum-file.h	…
ctype.c	…
daemon.c	…
date.c	…
date.h	…
decorate.c	…
decorate.h	…
delta-islands.c	delta-islands: use repo_parse_tree()	2026-01-09 18:36:17 -08:00
delta-islands.h	…
delta.h	…
detect-compiler	…
diagnose.c	…
diagnose.h	…
diff-delta.c	git-compat-util: introduce MEMZERO_ARRAY() macro	2025-12-11 14:44:43 +09:00
diff-lib.c	cocci: convert parse_tree functions to repo_ variants	2026-01-09 18:36:18 -08:00
diff-merges.c	…
diff-merges.h	…
diff-no-index.c	…
diff.c	diff: avoid segfault with freed entries	2025-12-30 10:53:47 +09:00
diff.h	Merge branch 'rs/diff-index-find-copies-harder-optim'	2025-12-14 17:04:36 +09:00
diffcore-break.c	…
diffcore-delta.c	cocci: use MEMZERO_ARRAY() a bit more	2025-12-13 10:47:59 +09:00
diffcore-order.c	…
diffcore-pickaxe.c	…
diffcore-rename.c	…
diffcore-rotate.c	…
diffcore.h	…
dir-iterator.c	…
dir-iterator.h	…
dir.c	…
dir.h	…
editor.c	…
editor.h	…
entry.c	streaming: move into object database subsystem	2025-11-23 12:56:46 -08:00
entry.h	…
environment.c	Merge branch 'rs/tree-wo-the-repository'	2026-01-21 16:16:28 -08:00
environment.h	Merge branch 'rs/tree-wo-the-repository'	2026-01-21 16:16:28 -08:00
exec-cmd.c	…
exec-cmd.h	…
fetch-negotiator.c	…
fetch-negotiator.h	…
fetch-pack.c	Merge branch 'jc/optional-path'	2025-12-05 14:49:56 +09:00
fetch-pack.h	…
fmt-merge-msg.c	…
fmt-merge-msg.h	…
for-each-ref.h	…
fsck.c	Merge branch 'rs/tree-wo-the-repository'	2026-01-21 16:16:28 -08:00
fsck.h	builtin/fsck: move generic HEAD check into `refs_fsck()`	2026-01-12 06:55:41 -08:00
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	…
generate-cmdlist.sh	…
generate-configlist.sh	…
generate-hooklist.sh	…
generate-perl.sh	…
generate-python.sh	…
generate-script.sh	…
gettext.c	…
gettext.h	…
git-archimport.perl	…
git-compat-util.h	environment: move access to core.maxTreeDepth into repo settings	2026-01-09 18:36:16 -08:00
git-curl-compat.h	…
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	…
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	…
git.rc.in	…
gpg-interface.c	Merge branch 'cc/fast-import-strip-if-invalid'	2025-12-05 14:49:58 +09:00
gpg-interface.h	Merge branch 'cc/fast-import-strip-if-invalid'	2025-12-05 14:49:58 +09:00
graph.c	…
graph.h	…
grep.c	…
grep.h	…
hash-lookup.c	…
hash-lookup.h	…
hash.c	…
hash.h	…
hashmap.c	git-compat-util: introduce MEMZERO_ARRAY() macro	2025-12-11 14:44:43 +09:00
hashmap.h	…
help.c	Merge branch 'jx/build-options-gettext'	2026-01-23 13:34:36 -08:00
help.h	…
hex-ll.c	…
hex-ll.h	…
hex.c	…
hex.h	…
hook.c	Revert "Merge branch 'ar/run-command-hook'"	2026-01-15 13:02:38 -08:00
hook.h	Revert "Merge branch 'ar/run-command-hook'"	2026-01-15 13:02:38 -08:00
http-backend.c	Merge branch 'kt/http-backend-errors'	2026-01-21 08:28:58 -08:00
http-fetch.c	…
http-push.c	cocci: convert parse_tree functions to repo_ variants	2026-01-09 18:36:18 -08:00
http-walker.c	…
http.c	packfile: move packfile store into object source	2026-01-09 06:40:07 -08:00
http.h	…
ident.c	…
ident.h	…
imap-send.c	…
iterator.h	…
json-writer.c	…
json-writer.h	…
khash.h	…
kwset.c	…
kwset.h	…
levenshtein.c	…
levenshtein.h	…
line-log.c	…
line-log.h	…
line-range.c	…
line-range.h	…
linear-assignment.c	cocci: use MEMZERO_ARRAY() a bit more	2025-12-13 10:47:59 +09:00
linear-assignment.h	…
list-objects-filter-options.c	…
list-objects-filter-options.h	…
list-objects-filter.c	…
list-objects-filter.h	…
list-objects.c	cocci: convert parse_tree functions to repo_ variants	2026-01-09 18:36:18 -08:00
list-objects.h	…
list.h	…
lockfile.c	trim_last_path_component(): avoid hard-coding the directory separator	2026-01-09 18:28:37 -08:00
lockfile.h	…
log-tree.c	…
log-tree.h	…
loose.c	…
loose.h	…
ls-refs.c	…
ls-refs.h	…
mailinfo.c	…
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	cocci: convert parse_tree functions to repo_ variants	2026-01-09 18:36:18 -08:00
merge-ort.h	…
merge.c	cocci: convert parse_tree functions to repo_ variants	2026-01-09 18:36:18 -08:00
merge.h	…
mergesort.h	…
meson.build	Merge branch 'rs/ban-mktemp'	2025-12-16 11:08:35 +09:00
meson_options.txt	…
midx-write.c	Merge branch 'tb/midx-write-corrupt-checksum-fix'	2026-01-21 16:16:27 -08:00
midx.c	Merge branch 'ps/packfile-store-in-odb-source'	2026-01-21 08:28:59 -08:00
midx.h	…
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	…
notes.h	…
object-file-convert.c	…
object-file-convert.h	…
object-file.c	object-file: always set OI_LOOSE when reading object info	2026-01-12 06:51:14 -08:00
object-file.h	streaming: move logic to read loose objects streams into backend	2025-11-23 12:56:45 -08:00
object-name.c	tag: support arbitrary repositories in parse_tag()	2025-12-29 22:02:54 +09:00
object-name.h	…
object.c	object: apply skip_hash and discard_tree optimizations to unknown blobs too	2025-12-09 18:12:24 +09:00
object.h	…
odb.c	Merge branch 'ps/packfile-store-in-odb-source'	2026-01-21 08:28:59 -08:00
odb.h	Merge branch 'ps/read-object-info-improvements'	2026-01-21 08:29:00 -08:00
oid-array.c	…
oid-array.h	…
oidmap.c	…
oidmap.h	…
oidset.c	oidset: introduce `oidset_equal()`	2025-11-25 12:15:59 -08:00
oidset.h	oidset: introduce `oidset_equal()`	2025-11-25 12:15:59 -08:00
oidtree.c	…
oidtree.h	…
pack-bitmap-write.c	Merge branch 'rs/tree-wo-the-repository'	2026-01-21 16:16:28 -08:00
pack-bitmap.c	packfile: drop repository parameter from `packed_object_info()`	2026-01-12 06:51:15 -08:00
pack-bitmap.h	…
pack-check.c	…
pack-mtimes.c	…
pack-mtimes.h	…
pack-objects.c	…
pack-objects.h	…
pack-refs.c	…
pack-refs.h	…
pack-revindex.c	git-compat-util: introduce MEMZERO_ARRAY() macro	2025-12-11 14:44:43 +09:00
pack-revindex.h	midx: fix `BUG()` when getting preferred pack without a reverse index	2025-12-11 12:09:58 +09:00
pack-write.c	…
pack.h	…
packfile.c	Merge branch 'ps/read-object-info-improvements'	2026-01-21 08:29:00 -08:00
packfile.h	Merge branch 'ps/read-object-info-improvements'	2026-01-21 08:29:00 -08:00
pager.c	…
pager.h	…
parallel-checkout.c	streaming: move into object database subsystem	2025-11-23 12:56:46 -08:00
parallel-checkout.h	…
parse-options-cb.c	…
parse-options.c	…
parse-options.h	…
parse.c	…
parse.h	…
patch-delta.c	…
patch-ids.c	…
patch-ids.h	…
path-walk.c	path-walk: use repo_parse_tree_gently()	2026-01-09 18:36:17 -08:00
path-walk.h	…
path.c	…
path.h	…
pathspec.c	…
pathspec.h	…
pkt-line.c	…
pkt-line.h	…
preload-index.c	…
preload-index.h	…
pretty.c	…
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.h	…
quote.c	…
quote.h	…
range-diff.c	…
range-diff.h	…
reachable.c	packfile: refactor kept-pack cache to work with packfile stores	2026-01-09 06:40:06 -08:00
reachable.h	…
read-cache-ll.h	…
read-cache.c	Merge branch 'js/symlink-windows'	2026-01-23 13:34:37 -08:00
read-cache.h	…
rebase-interactive.c	…
rebase-interactive.h	…
rebase.c	…
rebase.h	…
ref-filter.c	tag: support arbitrary repositories in parse_tag()	2025-12-29 22:02:54 +09:00
ref-filter.h	…
reflog-walk.c	…
reflog-walk.h	…
reflog.c	…
reflog.h	…
refs.c	Merge branch 'ps/ref-consistency-checks'	2026-01-21 08:28:58 -08:00
refs.h	refs/files: introduce function to perform normal ref checks	2026-01-12 06:55:41 -08:00
refspec.c	…
refspec.h	…
remote-curl.c	…
remote.c	remote: use commit_stack for src_commits	2025-12-25 08:29:28 +09:00
remote.h	…
repack-cruft.c	…
repack-filtered.c	…
repack-geometry.c	builtin/repack: handle promisor packs with geometric repacking	2026-01-14 06:29:24 -08:00
repack-midx.c	…
repack-promisor.c	builtin/repack: handle promisor packs with geometric repacking	2026-01-14 06:29:24 -08:00
repack.c	…
repack.h	builtin/repack: handle promisor packs with geometric repacking	2026-01-14 06:29:24 -08:00
replace-object.c	…
replace-object.h	…
repo-settings.c	environment: move access to core.maxTreeDepth into repo settings	2026-01-09 18:36:16 -08:00
repo-settings.h	environment: move access to core.maxTreeDepth into repo settings	2026-01-09 18:36:16 -08:00
repository.c	Merge branch 'gf/clear-path-cache-cleanup'	2025-12-30 12:58:21 +09:00
repository.h	odb: handle changing a repository's commondir	2025-11-25 12:16:00 -08:00
rerere.c	…
rerere.h	…
reset.c	cocci: convert parse_tree functions to repo_ variants	2026-01-09 18:36:18 -08:00
reset.h	…
resolve-undo.c	…
resolve-undo.h	…
revision.c	Merge branch 'rs/tree-wo-the-repository'	2026-01-21 16:16:28 -08:00
revision.h	…
run-command.c	Revert "Merge branch 'ar/run-command-hook'"	2026-01-15 13:02:38 -08:00
run-command.h	Revert "Merge branch 'ar/run-command-hook'"	2026-01-15 13:02:38 -08:00
sane-ctype.h	…
scalar.c	Merge branch 'ds/doc-scalar-config'	2025-12-23 11:33:15 +09:00
send-pack.c	…
send-pack.h	…
sequencer.c	Merge branch 'rs/tree-wo-the-repository'	2026-01-21 16:16:28 -08:00
sequencer.h	…
serve.c	…
serve.h	…
server-info.c	…
server-info.h	…
setup.c	init: do parse _all_ core.* settings early	2026-01-09 18:28:36 -08:00
setup.h	…
sh-i18n--envsubst.c	…
sha1dc_git.c	…
sha1dc_git.h	…
shallow.c	shallow: use commit_stack	2025-12-25 08:29:28 +09:00
shallow.h	shallow: use commit_stack	2025-12-25 08:29:28 +09:00
shared.mak	…
shell.c	…
shortlog.h	…
sideband.c	…
sideband.h	…
sigchain.c	…
sigchain.h	…
simple-ipc.h	…
sparse-index.c	…
sparse-index.h	…
split-index.c	…
split-index.h	…
stable-qsort.c	…
statinfo.c	…
statinfo.h	…
strbuf.c	Merge branch 'js/prep-symlink-windows'	2026-01-21 08:29:00 -08:00
strbuf.h	builtin/repo: add inflated object info to structure table	2025-12-18 09:02:31 +09:00
string-list.c	…
string-list.h	…
strmap.c	…
strmap.h	…
strvec.c	…
strvec.h	…
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	…
submodule-config.c	…
submodule-config.h	…
submodule.c	…
submodule.h	…
symlinks.c	…
symlinks.h	…
tag.c	tag: stop using the_repository	2025-12-29 22:02:54 +09:00
tag.h	tag: support arbitrary repositories in parse_tag()	2025-12-29 22:02:54 +09:00
tar.h	…
tempfile.c	…
tempfile.h	…
thread-utils.c	…
thread-utils.h	…
tmp-objdir.c	…
tmp-objdir.h	…
trace.c	…
trace.h	…
trace2.c	…
trace2.h	…
trailer.c	…
trailer.h	…
transport-helper.c	…
transport-internal.h	…
transport.c	Revert "Merge branch 'ar/run-command-hook'"	2026-01-15 13:02:38 -08:00
transport.h	…
tree-diff.c	environment: move access to core.maxTreeDepth into repo settings	2026-01-09 18:36:16 -08:00
tree-walk.c	environment: move access to core.maxTreeDepth into repo settings	2026-01-09 18:36:16 -08:00
tree-walk.h	…
tree.c	tree: stop using the_repository	2026-01-09 18:36:17 -08:00
tree.h	tree: stop using the_repository	2026-01-09 18:36:17 -08:00
unicode-width.h	…
unimplemented.sh	…
unix-socket.c	…
unix-socket.h	…
unix-stream-server.c	…
unix-stream-server.h	…
unpack-trees.c	…
unpack-trees.h	…
upload-pack.c	…
upload-pack.h	…
url.c	…
url.h	…
urlmatch.c	…
urlmatch.h	…
usage.c	…
userdiff.c	…
userdiff.h	…
utf8.c	utf8.c: prepare workaround for iconv under macOS 14/15	2026-01-12 12:00:04 -08:00
utf8.h	…
varint.c	…
varint.h	…
version-def.h.in	…
version.c	…
version.h	…
versioncmp.c	…
versioncmp.h	…
walker.c	cocci: convert parse_tree functions to repo_ variants	2026-01-09 18:36:18 -08:00
walker.h	…
wildmatch.c	…
wildmatch.h	…
worktree.c	…
worktree.h	…
wrapper.c	Merge branch 'rs/ban-mktemp'	2025-12-16 11:08:35 +09:00
wrapper.h	wrapper: add git_mkdtemp()	2025-12-07 07:28:11 +09:00
write-or-die.c	…
write-or-die.h	…
ws.c	…
ws.h	…
wt-status.c	…
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