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Karthik Nayak 28b83e6f08 maintenance: add 'is-needed' subcommand The 'git-maintenance(1)' command provides tooling to run maintenance tasks over Git repositories. The 'run' subcommand, as the name suggests, runs the maintenance tasks. When used with the '--auto' flag, it uses heuristics to determine if the required thresholds are met for running said maintenance tasks. There is however a lack of insight into these heuristics. Meaning, the checks are linked to the execution. Add a new 'is-needed' subcommand to 'git-maintenance(1)' which allows users to simply check if it is needed to run maintenance without performing it. This subcommand can check if it is needed to run maintenance without actually running it. Ideally it should be used with the '--auto' flag, which would allow users to check if the thresholds required are met. The subcommand also supports the '--task' flag which can be used to check specific maintenance tasks. While adding the respective tests in 't/t7900-maintenance.sh', remove a duplicate of the test: 'worktree-prune task with --auto honors maintenance.worktree-prune.auto'. Signed-off-by: Karthik Nayak <karthik.188@gmail.com> Acked-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>		2025-11-10 09:28:48 -08:00
.github	Merge branch 'ps/ci-rust'	2025-10-28 10:29:09 -07:00
Documentation	maintenance: add 'is-needed' subcommand	2025-11-10 09:28:48 -08:00
bin-wrappers	…
block-sha1	…
builtin	maintenance: add 'is-needed' subcommand	2025-11-10 09:28:48 -08:00
ci	Merge branch 'ps/ci-rust'	2025-10-28 10:29:09 -07:00
compat	mingw: order `#include`s alphabetically	2025-10-09 13:21:28 -07:00
compiler-tricks	…
contrib	Merge branch 'kf/log-shortlog-completion-fix'	2025-10-30 08:00:20 -07:00
ewah	…
git-gui	…
gitk-git	Merge branch 'master' of https://github.com/j6t/gitk	2025-10-05 13:32:47 -07:00
gitweb	…
mergetools	…
negotiator	refs: introduce wrapper struct for `each_ref_fn`	2025-11-04 07:32:24 -08:00
oss-fuzz	…
perl	…
po	…
refs	refs: add a `optimize_required` field to `struct ref_storage_be`	2025-11-10 09:28:48 -08:00
reftable	reftable/stack: add function to check if optimization is required	2025-11-10 09:28:47 -08:00
sha1	…
sha1collisiondetection@855827c583	…
sha1dc	…
sha256	…
src	rust: support for Windows	2025-10-15 08:10:17 -07:00
subprojects	…
t	maintenance: add 'is-needed' subcommand	2025-11-10 09:28:48 -08:00
templates	…
trace2	…
xdiff	Merge branch 'en/xdiff-cleanup'	2025-10-14 12:56:09 -07:00
.cirrus.yml	…
.clang-format	clang-format: exclude control macros from SpaceBeforeParens	2025-09-28 08:37:23 -07:00
.editorconfig	…
.gitattributes	…
.gitignore	Merge branch 'ps/rust-balloon'	2025-10-08 12:17:55 -07:00
.gitlab-ci.yml	Merge branch 'ps/gitlab-ci-disable-windows-monitoring' into maint-2.51	2025-10-26 19:48:19 -07:00
.gitmodules	…
.mailmap	mailmap: change primary address for Jonathan Tan	2025-10-07 10:38:21 -07:00
.tsan-suppressions	…
CODE_OF_CONDUCT.md	…
COPYING	…
Cargo.toml	ci: verify minimum supported Rust version	2025-10-15 08:10:17 -07:00
GIT-BUILD-OPTIONS.in	…
GIT-VERSION-FILE.in	…
GIT-VERSION-GEN	Git 2.51.2	2025-10-26 19:48:21 -07:00
INSTALL	…
LGPL-2.1	…
Makefile	Merge branch 'tb/incremental-midx-part-3.1'	2025-10-29 12:38:24 -07:00
README.md	…
RelNotes	Git 2.51.2	2025-10-26 19:48:21 -07:00
SECURITY.md	…
abspath.c	…
abspath.h	…
aclocal.m4	…
add-interactive.c	Merge branch 'sj/string-list'	2025-10-14 12:56:08 -07:00
add-interactive.h	…
add-patch.c	Merge branch 'rs/add-patch-document-p-for-pager'	2025-10-24 13:48:05 -07:00
advice.c	…
advice.h	…
alias.c	…
alias.h	…
alloc.c	…
alloc.h	…
apply.c	…
apply.h	…
archive-tar.c	…
archive-zip.c	…
archive.c	…
archive.h	…
attr.c	…
attr.h	…
banned.h	…
base85.c	…
base85.h	…
bisect.c	refs: introduce wrapper struct for `each_ref_fn`	2025-11-04 07:32:24 -08:00
bisect.h	…
blame.c	…
blame.h	…
blob.c	…
blob.h	…
bloom.c	…
bloom.h	…
branch.c	…
branch.h	…
builtin.h	…
bundle-uri.c	…
bundle-uri.h	…
bundle.c	…
bundle.h	…
cache-tree.c	…
cache-tree.h	…
cbtree.c	…
cbtree.h	…
chdir-notify.c	…
chdir-notify.h	…
check-builtins.sh	…
checkout.c	…
checkout.h	…
chunk-format.c	…
chunk-format.h	…
color.c	…
color.h	…
column.c	…
column.h	…
combine-diff.c	Merge branch 'tc/last-modified-recursive-fix'	2025-09-29 11:40:35 -07:00
command-list.txt	…
commit-graph.c	refs: expose peeled object ID via the iterator	2025-11-04 07:32:25 -08:00
commit-graph.h	…
commit-reach.c	…
commit-reach.h	…
commit-slab-decl.h	…
commit-slab-impl.h	…
commit-slab.h	…
commit.c	…
commit.h	…
common-exit.c	…
common-init.c	…
common-init.h	…
common-main.c	…
config.c	Merge branch 'jc/optional-path'	2025-10-14 12:56:09 -07:00
config.h	…
config.mak.dev	…
config.mak.in	…
config.mak.uname	…
configure.ac	…
connect.c	…
connect.h	…
connected.c	packfile: introduce macro to iterate through packs	2025-10-16 14:42:39 -07:00
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	refs: introduce wrapper struct for `each_ref_fn`	2025-11-04 07:32:24 -08:00
delta-islands.h	…
delta.h	…
detect-compiler	…
diagnose.c	…
diagnose.h	…
diff-delta.c	…
diff-lib.c	…
diff-merges.c	…
diff-merges.h	…
diff-no-index.c	diff --no-index: fix logic for paths ending in '/'	2025-09-25 11:35:20 -07:00
diff.c	Merge branch 'jc/diff-from-contents-fix'	2025-10-24 09:10:37 -07:00
diff.h	Merge branch 'tc/last-modified-recursive-fix'	2025-09-29 11:40:35 -07:00
diffcore-break.c	…
diffcore-delta.c	…
diffcore-order.c	…
diffcore-pickaxe.c	…
diffcore-rename.c	…
diffcore-rotate.c	…
diffcore.h	…
dir-iterator.c	…
dir-iterator.h	…
dir.c	Merge branch 'ds/sparse-checkout-clean'	2025-10-28 10:29:09 -07:00
dir.h	…
editor.c	…
editor.h	…
entry.c	…
entry.h	…
environment.c	…
environment.h	…
exec-cmd.c	…
exec-cmd.h	…
fetch-negotiator.c	…
fetch-negotiator.h	…
fetch-pack.c	refs: introduce wrapper struct for `each_ref_fn`	2025-11-04 07:32:24 -08:00
fetch-pack.h	…
fmt-merge-msg.c	…
fmt-merge-msg.h	…
for-each-ref.h	…
fsck.c	fsck: consider gpgsig headers expected in tags	2025-10-09 17:46:14 -07:00
fsck.h	Merge branch 'bc/sha1-256-interop-01'	2025-10-22 11:38:58 -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	…
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	…
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	Merge branch 'nb/send-email-no-dup-reply-to'	2025-09-29 11:40:33 -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	Merge branch 'kh/you-still-use-whatchanged-fix'	2025-10-02 12:26:12 -07:00
git.rc.in	…
gpg-interface.c	Merge branch 'ob/gpg-interface-cleanup'	2025-10-30 08:00:19 -07:00
gpg-interface.h	…
graph.c	…
graph.h	…
grep.c	…
grep.h	…
hash-lookup.c	…
hash-lookup.h	…
hash.c	…
hash.h	…
hashmap.c	…
hashmap.h	…
help.c	refs: introduce wrapper struct for `each_ref_fn`	2025-11-04 07:32:24 -08:00
help.h	…
hex-ll.c	…
hex-ll.h	…
hex.c	…
hex.h	…
hook.c	…
hook.h	…
http-backend.c	Merge branch 'ps/ref-peeled-tags' into kn/maintenance-is-needed	2025-11-04 07:38:27 -08:00
http-fetch.c	…
http-push.c	Merge branch 'js/curl-off-t-fixes' into maint-2.51	2025-10-14 13:40:53 -07:00
http-walker.c	…
http.c	packfile: introduce macro to iterate through packs	2025-10-16 14:42:39 -07:00
http.h	Merge branch 'js/curl-off-t-fixes'	2025-10-07 12:25:27 -07:00
ident.c	Merge branch 'ps/reflog-migrate-fixes' into maint-2.51	2025-10-15 10:29:28 -07:00
ident.h	…
imap-send.c	Merge branch 'js/curl-off-t-fixes' into maint-2.51	2025-10-14 13:40:53 -07:00
iterator.h	…
json-writer.c	…
json-writer.h	…
khash.h	…
kwset.c	…
kwset.h	…
levenshtein.c	…
levenshtein.h	…
line-log.c	Merge branch 'sg/line-log-boundary-fixes' into maint-2.51	2025-10-15 10:29:30 -07:00
line-log.h	…
line-range.c	…
line-range.h	…
linear-assignment.c	…
linear-assignment.h	…
list-objects-filter-options.c	…
list-objects-filter-options.h	…
list-objects-filter.c	…
list-objects-filter.h	…
list-objects.c	…
list-objects.h	…
list.h	…
lockfile.c	…
lockfile.h	…
log-tree.c	refs: introduce wrapper struct for `each_ref_fn`	2025-11-04 07:32:24 -08:00
log-tree.h	…
loose.c	…
loose.h	…
ls-refs.c	refs: expose peeled object ID via the iterator	2025-11-04 07:32:25 -08:00
ls-refs.h	…
mailinfo.c	…
mailinfo.h	…
mailmap.c	string-list: change "string_list_find_insert_index" return type to "size_t"	2025-10-06 09:11:07 -07:00
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 branch 'en/ort-rename-fixes' into maint-2.51	2025-10-15 10:29:28 -07:00
merge-ort.h	…
merge.c	…
merge.h	…
mergesort.h	…
meson.build	Merge branch 'tb/incremental-midx-part-3.1'	2025-10-29 12:38:24 -07:00
meson_options.txt	meson: add infrastructure to build internal Rust library	2025-10-02 09:32:31 -07:00
midx-write.c	refs: expose peeled object ID via the iterator	2025-11-04 07:32:25 -08:00
midx.c	packfile: move `get_multi_pack_index()` into "midx.c"	2025-09-24 11:53:50 -07:00
midx.h	packfile: move `get_multi_pack_index()` into "midx.c"	2025-09-24 11:53:50 -07:00
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	refs: introduce wrapper struct for `each_ref_fn`	2025-11-04 07:32:24 -08:00
notes.h	…
object-file-convert.c	…
object-file-convert.h	…
object-file.c	Merge branch 'ps/packfile-store'	2025-10-07 12:25:27 -07:00
object-file.h	…
object-name.c	Merge branch 'ps/ref-peeled-tags' into kn/maintenance-is-needed	2025-11-04 07:38:27 -08:00
object-name.h	…
object.c	object: add flag to `peel_object()` to verify object type	2025-11-04 07:32:25 -08:00
object.h	maintenance: add checking logic in `pack_refs_condition()`	2025-11-10 09:28:48 -08:00
odb.c	Merge branch 'ps/packfile-store'	2025-10-07 12:25:27 -07:00
odb.h	Merge branch 'ps/odb-clean-stale-wrappers'	2025-10-07 12:25:28 -07:00
oid-array.c	…
oid-array.h	…
oidmap.c	…
oidmap.h	…
oidset.c	…
oidset.h	…
oidtree.c	…
oidtree.h	…
pack-bitmap-write.c	…
pack-bitmap.c	packfile: introduce macro to iterate through packs	2025-10-16 14:42:39 -07:00
pack-bitmap.h	…
pack-check.c	…
pack-mtimes.c	…
pack-mtimes.h	…
pack-objects.c	Merge branch 'ps/remove-packfile-store-get-packs'	2025-10-30 08:00:19 -07:00
pack-objects.h	…
pack-refs.c	refs: rename 'pack_refs_opts' to 'refs_optimize_opts'	2025-11-04 07:35:12 -08:00
pack-refs.h	…
pack-revindex.c	…
pack-revindex.h	…
pack-write.c	…
pack.h	…
packfile.c	packfile: rename `packfile_store_get_all_packs()`	2025-10-16 14:42:40 -07:00
packfile.h	packfile: rename `packfile_store_get_all_packs()`	2025-10-16 14:42:40 -07:00
pager.c	…
pager.h	…
parallel-checkout.c	…
parallel-checkout.h	…
parse-options-cb.c	…
parse-options.c	Merge branch 'jc/optional-path'	2025-10-14 12:56:09 -07:00
parse-options.h	…
parse.c	…
parse.h	…
patch-delta.c	…
patch-ids.c	…
patch-ids.h	…
path-walk.c	…
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	refs: expose peeled object ID via the iterator	2025-11-04 07:32:25 -08:00
pseudo-merge.h	…
quote.c	…
quote.h	…
range-diff.c	range-diff: rename other_arg to log_arg	2025-09-25 11:34:11 -07:00
range-diff.h	range-diff: rename other_arg to log_arg	2025-09-25 11:34:11 -07:00
reachable.c	refs: introduce wrapper struct for `each_ref_fn`	2025-11-04 07:32:24 -08:00
reachable.h	…
read-cache-ll.h	…
read-cache.c	Merge branch 'ps/rust-balloon'	2025-10-08 12:17:55 -07:00
read-cache.h	…
rebase-interactive.c	…
rebase-interactive.h	…
rebase.c	…
rebase.h	…
ref-filter.c	ref-filter: fix stale parsed objects	2025-11-04 07:32:25 -08:00
ref-filter.h	ref-filter: propagate peeled object ID	2025-11-04 07:32:25 -08:00
reflog-walk.c	…
reflog-walk.h	…
reflog.c	refs: introduce wrapper struct for `each_ref_fn`	2025-11-04 07:32:24 -08:00
reflog.h	…
refs.c	refs: add a `optimize_required` field to `struct ref_storage_be`	2025-11-10 09:28:48 -08:00
refs.h	refs: add a `optimize_required` field to `struct ref_storage_be`	2025-11-10 09:28:48 -08:00
refspec.c	…
refspec.h	…
remote-curl.c	Merge branch 'js/curl-off-t-fixes' into maint-2.51	2025-10-14 13:40:53 -07:00
remote.c	refs: introduce wrapper struct for `each_ref_fn`	2025-11-04 07:32:24 -08:00
remote.h	…
repack-cruft.c	packfile: introduce macro to iterate through packs	2025-10-16 14:42:39 -07:00
repack-filtered.c	repack: move `write_filtered_pack()` out of the builtin	2025-10-16 10:08:57 -07:00
repack-geometry.c	packfile: introduce macro to iterate through packs	2025-10-16 14:42:39 -07:00
repack-midx.c	refs: expose peeled object ID via the iterator	2025-11-04 07:32:25 -08:00
repack-promisor.c	builtin/repack.c: remove "repack_promisor_objects()" from the builtin	2025-10-16 10:08:55 -07:00
repack.c	packfile: introduce macro to iterate through packs	2025-10-16 14:42:39 -07:00
repack.h	repack: move `write_cruft_pack()` out of the builtin	2025-10-16 10:08:57 -07:00
replace-object.c	refs: introduce wrapper struct for `each_ref_fn`	2025-11-04 07:32:24 -08:00
replace-object.h	…
repo-settings.c	…
repo-settings.h	…
repository.c	…
repository.h	…
rerere.c	…
rerere.h	…
reset.c	…
reset.h	…
resolve-undo.c	…
resolve-undo.h	…
revision.c	refs: introduce wrapper struct for `each_ref_fn`	2025-11-04 07:32:24 -08:00
revision.h	Merge branch 'kh/format-patch-range-diff-notes'	2025-10-14 12:56:09 -07:00
run-command.c	…
run-command.h	…
sane-ctype.h	…
scalar.c	commit-graph: add new config for changed-paths & recommend it in scalar	2025-10-22 10:40:11 -07:00
send-pack.c	…
send-pack.h	…
sequencer.c	Merge branch 'pw/rebase-i-cleanup-fix' into maint-2.51	2025-10-15 10:29:31 -07:00
sequencer.h	treewide: pass strvecs around for setup_revisions_from_strvec()	2025-09-22 14:27:03 -07:00
serve.c	…
serve.h	…
server-info.c	Merge branch 'ps/ref-peeled-tags' into kn/maintenance-is-needed	2025-11-04 07:38:27 -08:00
server-info.h	…
setup.c	…
setup.h	…
sh-i18n--envsubst.c	…
sha1dc_git.c	…
sha1dc_git.h	…
shallow.c	refs: introduce wrapper struct for `each_ref_fn`	2025-11-04 07:32:24 -08:00
shallow.h	treewide: pass strvecs around for setup_revisions_from_strvec()	2025-09-22 14:27:03 -07:00
shared.mak	Makefile: introduce infrastructure to build internal Rust library	2025-10-02 09:32:31 -07:00
shell.c	…
shortlog.h	…
sideband.c	…
sideband.h	…
sigchain.c	…
sigchain.h	…
simple-ipc.h	…
sparse-index.c	sparse-index: improve advice message instructions	2025-10-20 09:20:50 -07:00
sparse-index.h	…
split-index.c	…
split-index.h	…
stable-qsort.c	…
statinfo.c	…
statinfo.h	…
strbuf.c	…
strbuf.h	…
streaming.c	…
streaming.h	…
string-list.c	string-list: change "string_list_find_insert_index" return type to "size_t"	2025-10-06 09:11:07 -07:00
string-list.h	string-list: change "string_list_find_insert_index" return type to "size_t"	2025-10-06 09:11:07 -07:00
strmap.c	…
strmap.h	…
strvec.c	…
strvec.h	…
sub-process.c	…
sub-process.h	…
submodule-config.c	…
submodule-config.h	…
submodule.c	refs: introduce wrapper struct for `each_ref_fn`	2025-11-04 07:32:24 -08:00
submodule.h	…
symlinks.c	…
symlinks.h	…
tag.c	object: add flag to `peel_object()` to verify object type	2025-11-04 07:32:25 -08:00
tag.h	object: add flag to `peel_object()` to verify object type	2025-11-04 07:32:25 -08:00
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	packfile: split up responsibilities of `reprepare_packed_git()`	2025-09-24 11:53:50 -07:00
transport-internal.h	…
transport.c	Merge branch 'jk/color-variable-fixes'	2025-09-29 11:40:35 -07:00
transport.h	…
tree-diff.c	…
tree-walk.c	…
tree-walk.h	…
tree.c	…
tree.h	…
unicode-width.h	unicode: update the width tables to Unicode 17	2025-10-21 10:03:00 -07:00
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: convert to use `reference_get_peeled_oid()`	2025-11-04 07:32:25 -08:00
upload-pack.h	…
url.c	…
url.h	…
urlmatch.c	…
urlmatch.h	…
usage.c	Merge branch 'kh/you-still-use-whatchanged-fix'	2025-10-02 12:26:12 -07:00
userdiff.c	…
userdiff.h	…
utf8.c	…
utf8.h	…
varint.c	varint: use explicit width for integers	2025-10-02 09:32:32 -07:00
varint.h	varint: use explicit width for integers	2025-10-02 09:32:32 -07:00
version-def.h.in	…
version.c	…
version.h	…
versioncmp.c	…
versioncmp.h	…
walker.c	refs: introduce wrapper struct for `each_ref_fn`	2025-11-04 07:32:24 -08:00
walker.h	…
wildmatch.c	…
wildmatch.h	…
worktree.c	refs: introduce wrapper struct for `each_ref_fn`	2025-11-04 07:32:24 -08:00
worktree.h	…
wrapper.c	config: values of pathname type can be prefixed with :(optional)	2025-10-07 10:05:48 -07:00
wrapper.h	config: values of pathname type can be prefixed with :(optional)	2025-10-07 10:05:48 -07:00
write-or-die.c	…
write-or-die.h	…
ws.c	…
ws.h	…
wt-status.c	Merge branch 'jk/status-z-short-fix'	2025-10-24 13:48:04 -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