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Patrick Steinhardt 9ec76ad9ed Makefile: make hdr-check depend on generated headers The "hdr-check" Makefile target compiles each of our headers as a standalone code unit to ensure that they are not missing any type declarations and can be included standalone. With the next commit we will wire up the clar unit testing framework, which will have the effect that some headers start depending on generated ones. While we could declare that dependency explicitly, it does not really feel very maintainable in the future. Instead, we do the same as in the preceding commit and have the objects depend on all of our generated headers. While again overly broad, it is easy to maintain and generating headers is not an expensive thing to do anyway. Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>		2024-09-04 08:41:37 -07:00
.github	ci: run style check on GitHub and GitLab	2024-07-23 09:56:50 -07:00
Documentation	t: import the clar unit testing framework	2024-09-04 08:41:36 -07:00
block-sha1	…
builtin	Merge branch 'tb/incremental-midx-part-1'	2024-08-19 11:07:37 -07:00
ci	Merge branch 'tb/incremental-midx-part-1'	2024-08-19 11:07:37 -07:00
compat	mingw(is_msys2_sh): handle forward slashes in the `sh.exe` path, too	2024-07-13 16:23:37 -07:00
contrib	Merge branch 'jk/osxkeychain-username-is-nul-terminated'	2024-08-14 14:54:48 -07:00
ewah	…
git-gui	Merge https://github.com/j6t/git-gui	2024-07-07 22:50:59 -07:00
gitk-git	…
gitweb	Merge branch 'am/gitweb-feed-use-committer-date'	2024-07-15 10:11:41 -07:00
mergetools	…
negotiator	refs: add referent to each_ref_fn	2024-08-09 08:47:34 -07:00
oss-fuzz	Merge branch 'tb/path-filter-fix'	2024-07-08 14:53:10 -07:00
perl	…
po	l10n: zh_CN: updated translation for 2.46	2024-07-28 19:52:41 +08:00
refs	Merge branch 'sj/ref-fsck'	2024-08-16 12:51:51 -07:00
reftable	Merge branch 'ps/reftable-stack-compaction'	2024-08-15 13:22:13 -07:00
sha1	…
sha1collisiondetection@855827c583	…
sha1dc	…
sha256	…
t	clar: stop including `shellapi.h` unnecessarily	2024-09-04 08:41:37 -07:00
templates	…
trace2	…
xdiff	…
.cirrus.yml	…
.clang-format	Merge branch 'rs/unit-tests-test-run'	2024-08-19 11:07:36 -07:00
.editorconfig	…
.gitattributes	…
.gitignore	…
.gitlab-ci.yml	check-whitespace: detect if no base_commit is provided	2024-07-23 09:56:50 -07:00
.gitmodules	…
.mailmap	…
.tsan-suppressions	…
CODE_OF_CONDUCT.md	…
COPYING	…
GIT-VERSION-GEN	Prepare for 2.46.1	2024-08-16 12:52:53 -07:00
INSTALL	…
LGPL-2.1	…
Makefile	Makefile: make hdr-check depend on generated headers	2024-09-04 08:41:37 -07:00
README.md	…
RelNotes	Prepare for 2.46.1	2024-08-16 12:52:53 -07:00
SECURITY.md	…
abspath.c	…
abspath.h	…
aclocal.m4	…
add-interactive.c	…
add-interactive.h	…
add-patch.c	Merge branch 'pw/add-patch-with-suppress-blank-empty' into maint-2.46	2024-08-16 12:50:54 -07:00
advice.c	Merge branch 'ds/advice-sparse-index-expansion'	2024-07-16 11:18:56 -07:00
advice.h	Merge branch 'ds/advice-sparse-index-expansion'	2024-07-16 11:18:56 -07:00
alias.c	…
alias.h	…
alloc.c	…
alloc.h	…
apply.c	Merge branch 'jk/apply-patch-mode-check-fix'	2024-08-14 14:54:50 -07:00
apply.h	Merge branch 'ps/leakfixes-more'	2024-07-08 14:53:10 -07:00
archive-tar.c	…
archive-zip.c	…
archive.c	…
archive.h	…
attr.c	Merge branch 'ps/use-the-repository'	2024-07-02 09:59:00 -07:00
attr.h	…
banned.h	…
base85.c	…
base85.h	…
bisect.c	refs: add referent to each_ref_fn	2024-08-09 08:47:34 -07:00
bisect.h	…
blame.c	Merge branch 'ps/leakfixes-more'	2024-07-08 14:53:10 -07:00
blame.h	…
blob.c	…
blob.h	…
bloom.c	Merge branch 'tb/path-filter-fix'	2024-07-08 14:53:10 -07:00
bloom.h	bloom: introduce `deinit_bloom_filters()`	2024-06-25 13:52:06 -07:00
branch.c	…
branch.h	…
builtin.h	…
bulk-checkin.c	…
bulk-checkin.h	…
bundle-uri.c	Merge branch 'xx/bundie-uri-fixes'	2024-07-08 14:53:11 -07:00
bundle-uri.h	…
bundle.c	Merge branch 'xx/bundie-uri-fixes'	2024-07-08 14:53:11 -07:00
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	…
command-list.txt	…
commit-graph.c	refs: add referent to each_ref_fn	2024-08-09 08:47:34 -07:00
commit-graph.h	…
commit-reach.c	commit-reach: fix trivial memory leak when computing reachability	2024-08-01 08:47:38 -07:00
commit-reach.h	…
commit-slab-decl.h	…
commit-slab-impl.h	…
commit-slab.h	…
commit.c	Merge branch 'ps/leakfixes-more'	2024-07-08 14:53:10 -07:00
commit.h	Merge branch 'ps/leakfixes-more'	2024-07-08 14:53:10 -07:00
common-main.c	…
config.c	Merge branch 'tb/config-fixed-value-with-valueless-true'	2024-08-14 14:54:51 -07:00
config.h	Merge branch 'tb/pseudo-merge-reachability-bitmap'	2024-06-24 16:39:13 -07:00
config.mak.dev	Merge branch 'tb/dev-build-pedantic-fix'	2024-07-15 10:11:42 -07:00
config.mak.in	…
config.mak.uname	config.mak.uname: remove unused uname_P variable	2024-07-18 07:01:39 -07:00
configure.ac	…
connect.c	…
connect.h	…
connected.c	…
connected.h	…
convert.c	Merge branch 'dh/encoding-trace-optim' into maint-2.46	2024-08-16 12:50:55 -07:00
convert.h	…
copy.c	…
copy.h	…
credential.c	…
credential.h	…
csum-file.c	csum-file: introduce discard_hashfile()	2024-07-26 09:04:02 -07:00
csum-file.h	csum-file: introduce discard_hashfile()	2024-07-26 09:04:02 -07:00
ctype.c	…
daemon.c	…
date.c	date: detect underflow/overflow when parsing dates with timezone offset	2024-06-25 17:07:41 -07:00
date.h	…
decorate.c	…
decorate.h	…
delta-islands.c	refs: add referent to each_ref_fn	2024-08-09 08:47:34 -07:00
delta-islands.h	…
delta.h	…
detect-compiler	…
diagnose.c	…
diagnose.h	…
diff-delta.c	…
diff-lib.c	Merge branch 'ps/leakfixes-more'	2024-07-08 14:53:10 -07:00
diff-merges.c	…
diff-merges.h	…
diff-no-index.c	…
diff.c	Merge branch 'ps/leakfixes-more'	2024-07-08 14:53:10 -07:00
diff.h	…
diffcore-break.c	…
diffcore-delta.c	…
diffcore-order.c	…
diffcore-pickaxe.c	…
diffcore-rename.c	Merge branch 'ps/use-the-repository'	2024-07-02 09:59:00 -07:00
diffcore-rotate.c	…
diffcore.h	…
dir-iterator.c	…
dir-iterator.h	…
dir.c	win32: override `fspathcmp()` with a directory separator-aware version	2024-07-13 16:23:36 -07:00
dir.h	win32: override `fspathcmp()` with a directory separator-aware version	2024-07-13 16:23:36 -07:00
editor.c	…
editor.h	…
entry.c	entry: fix leaking pathnames during delayed checkout	2024-08-01 08:47:37 -07:00
entry.h	…
environment.c	…
environment.h	…
exec-cmd.c	…
exec-cmd.h	…
fetch-negotiator.c	…
fetch-negotiator.h	…
fetch-pack.c	refs: add referent to each_ref_fn	2024-08-09 08:47:34 -07:00
fetch-pack.h	…
fmt-merge-msg.c	Merge branch 'ps/use-the-repository'	2024-07-02 09:59:00 -07:00
fmt-merge-msg.h	…
fsck.c	builtin/refs: add verify subcommand	2024-08-08 09:36:53 -07:00
fsck.h	fsck: add ref name check for files backend	2024-08-08 09:36:53 -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	…
gettext.c	…
gettext.h	…
git-archimport.perl	…
git-compat-util.h	win32: override `fspathcmp()` with a directory separator-aware version	2024-07-13 16:23:36 -07:00
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	Merge branch 'cb/send-email-sanitize-trailer-addresses'	2024-07-16 11:18:56 -07:00
git-sh-i18n.sh	…
git-sh-setup.sh	…
git-submodule.sh	builtin/submodule: allow "add" to use different ref storage format	2024-08-08 09:22:21 -07:00
git-svn.perl	…
git-web--browse.sh	…
git-zlib.c	…
git-zlib.h	…
git.c	…
git.rc	…
gpg-interface.c	…
gpg-interface.h	…
graph.c	…
graph.h	…
grep.c	grep: -W: skip trailing empty lines at EOF, too	2024-07-30 09:59:04 -07:00
grep.h	…
hash-lookup.c	…
hash-lookup.h	…
hash.h	…
hashmap.c	…
hashmap.h	…
help.c	refs: add referent to each_ref_fn	2024-08-09 08:47:34 -07:00
help.h	…
hex-ll.c	…
hex-ll.h	…
hex.c	…
hex.h	…
hook.c	…
hook.h	…
http-backend.c	refs: add referent to each_ref_fn	2024-08-09 08:47:34 -07:00
http-fetch.c	…
http-push.c	…
http-walker.c	…
http.c	http: do not ignore proxy path	2024-08-02 08:30:08 -07:00
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	…
linear-assignment.h	…
list-objects-filter-options.c	…
list-objects-filter-options.h	…
list-objects-filter.c	Merge branch 'ps/leakfixes-more'	2024-07-08 14:53:10 -07:00
list-objects-filter.h	…
list-objects.c	…
list-objects.h	…
list.h	…
lockfile.c	…
lockfile.h	…
log-tree.c	Merge branch 'jc/refs-symref-referent'	2024-08-15 13:22:15 -07:00
log-tree.h	…
loose.c	…
loose.h	…
ls-refs.c	refs: add referent to each_ref_fn	2024-08-09 08:47:34 -07:00
ls-refs.h	…
mailinfo.c	…
mailinfo.h	…
mailmap.c	mailmap: plug memory leak in read_mailmap_blob()	2024-07-26 08:00:09 -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-inner-merge-error-fix'	2024-07-16 11:18:55 -07:00
merge-ort.h	Merge branch 'ps/leakfixes-more'	2024-07-08 14:53:10 -07:00
merge-recursive.c	merge-recursive: honor diff.algorithm	2024-07-13 18:10:49 -07:00
merge-recursive.h	merge-recursive: honor diff.algorithm	2024-07-13 18:10:49 -07:00
merge.c	…
merge.h	…
mergesort.h	…
midx-write.c	Merge branch 'tb/incremental-midx-part-1'	2024-08-19 11:07:37 -07:00
midx.c	midx: implement support for writing incremental MIDX chains	2024-08-06 12:01:39 -07:00
midx.h	midx: implement support for writing incremental MIDX chains	2024-08-06 12:01:39 -07:00
name-hash.c	…
name-hash.h	…
notes-cache.c	…
notes-cache.h	…
notes-merge.c	Merge branch 'ps/leakfixes-more'	2024-07-08 14:53:10 -07:00
notes-merge.h	…
notes-utils.c	Merge branch 'ps/leakfixes-more'	2024-07-08 14:53:10 -07:00
notes-utils.h	…
notes.c	refs: add referent to each_ref_fn	2024-08-09 08:47:34 -07:00
notes.h	…
object-file-convert.c	…
object-file-convert.h	…
object-file.c	fsck: make "fsck_error" callback generic	2024-08-08 09:36:52 -07:00
object-file.h	…
object-name.c	Merge branch 'tb/incremental-midx-part-1'	2024-08-19 11:07:37 -07:00
object-name.h	…
object-store-ll.h	…
object-store.h	…
object.c	object: fix leaking packfiles when closing object store	2024-08-08 09:22:21 -07:00
object.h	Merge branch 'tb/path-filter-fix'	2024-07-08 14:53:10 -07:00
oid-array.c	…
oid-array.h	…
oidmap.c	…
oidmap.h	…
oidset.c	…
oidset.h	…
oidtree.c	…
oidtree.h	…
pack-bitmap-write.c	Merge branch 'ps/use-the-repository'	2024-07-02 09:59:00 -07:00
pack-bitmap.c	Merge branch 'ps/use-the-repository'	2024-07-02 09:59:00 -07:00
pack-bitmap.h	…
pack-check.c	…
pack-mtimes.c	…
pack-mtimes.h	…
pack-objects.c	…
pack-objects.h	…
pack-revindex.c	Merge branch 'ps/use-the-repository'	2024-07-02 09:59:00 -07:00
pack-revindex.h	…
pack-write.c	…
pack.h	…
packfile.c	midx: implement support for writing incremental MIDX chains	2024-08-06 12:01:39 -07:00
packfile.h	midx: implement support for writing incremental MIDX chains	2024-08-06 12:01:39 -07:00
pager.c	pager: introduce wait_for_pager	2024-07-25 09:03:00 -07:00
pager.h	pager: introduce wait_for_pager	2024-07-25 09:03:00 -07:00
parallel-checkout.c	…
parallel-checkout.h	…
parse-options-cb.c	Merge branch 'ps/use-the-repository'	2024-07-02 09:59:00 -07:00
parse-options.c	…
parse-options.h	…
parse.c	…
parse.h	…
patch-delta.c	…
patch-ids.c	…
patch-ids.h	…
path.c	…
path.h	Merge branch 'jc/worktree-git-path'	2024-06-24 16:39:15 -07:00
pathspec.c	…
pathspec.h	Merge branch 'as/pathspec-h-typofix'	2024-07-12 08:41:57 -07:00
pkt-line.c	…
pkt-line.h	…
preload-index.c	…
preload-index.h	…
pretty.c	Merge branch 'ps/use-the-repository'	2024-07-02 09:59:00 -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	refs: add referent to each_ref_fn	2024-08-09 08:47:34 -07:00
pseudo-merge.h	…
quote.c	…
quote.h	…
range-diff.c	…
range-diff.h	…
reachable.c	refs: add referent to each_ref_fn	2024-08-09 08:47:34 -07:00
reachable.h	…
read-cache-ll.h	…
read-cache.c	csum-file: introduce discard_hashfile()	2024-07-26 09:04:02 -07:00
read-cache.h	…
rebase-interactive.c	Merge branch 'ps/use-the-repository'	2024-07-02 09:59:00 -07:00
rebase-interactive.h	…
rebase.c	…
rebase.h	…
ref-filter.c	Merge branch 'jc/refs-symref-referent'	2024-08-15 13:22:15 -07:00
ref-filter.h	…
reflog-walk.c	…
reflog-walk.h	…
reflog.c	Merge branch 'jc/refs-symref-referent'	2024-08-15 13:22:15 -07:00
reflog.h	…
refs.c	Merge branch 'sj/ref-fsck'	2024-08-16 12:51:51 -07:00
refs.h	Merge branch 'sj/ref-fsck'	2024-08-16 12:51:51 -07:00
refspec.c	Merge branch 'ps/use-the-repository'	2024-07-02 09:59:00 -07:00
refspec.h	…
remote-curl.c	Merge branch 'jk/remote-wo-url'	2024-07-02 09:59:01 -07:00
remote.c	refs: add referent to each_ref_fn	2024-08-09 08:47:34 -07:00
remote.h	Merge branch 'jk/remote-wo-url'	2024-07-02 09:59:01 -07:00
replace-object.c	refs: add referent to each_ref_fn	2024-08-09 08:47:34 -07:00
replace-object.h	…
repo-settings.c	Merge branch 'tb/path-filter-fix'	2024-07-08 14:53:10 -07:00
repository.c	…
repository.h	Merge branch 'tb/path-filter-fix'	2024-07-08 14:53:10 -07:00
rerere.c	builtin/rerere: fix various trivial memory leaks	2024-08-01 08:47:37 -07:00
rerere.h	…
reset.c	…
reset.h	…
resolve-undo.c	…
resolve-undo.h	…
revision.c	refs: add referent to each_ref_fn	2024-08-09 08:47:34 -07:00
revision.h	…
run-command.c	run-command: declare the `git_shell_path()` function globally	2024-07-13 16:23:37 -07:00
run-command.h	run-command: declare the `git_shell_path()` function globally	2024-07-13 16:23:37 -07:00
sane-ctype.h	…
scalar.c	Merge branch 'ps/use-the-repository'	2024-07-02 09:59:00 -07:00
send-pack.c	Merge branch 'jc/disable-push-nego-for-deletion'	2024-07-15 10:11:43 -07:00
send-pack.h	…
sequencer.c	merge-recursive: honor diff.algorithm	2024-07-13 18:10:49 -07:00
sequencer.h	Merge branch 'pw/rebase-i-error-message' into maint-2.45	2024-07-02 09:27:56 -07:00
serve.c	…
serve.h	…
server-info.c	refs: add referent to each_ref_fn	2024-08-09 08:47:34 -07:00
server-info.h	…
setup.c	safe.directory: normalize the configured path	2024-07-30 11:47:59 -07:00
setup.h	…
sh-i18n--envsubst.c	…
sha1dc_git.c	…
sha1dc_git.h	…
shallow.c	refs: add referent to each_ref_fn	2024-08-09 08:47:34 -07:00
shallow.h	…
shared.mak	…
shell.c	…
shortlog.h	…
sideband.c	…
sideband.h	…
sigchain.c	…
sigchain.h	…
simple-ipc.h	…
sparse-index.c	Merge branch 'ds/advice-sparse-index-expansion'	2024-07-16 11:18:56 -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.h	…
strmap.c	…
strmap.h	…
strvec.c	strvec: declare the `strvec_push_nodup()` function globally	2024-07-13 16:23:36 -07:00
strvec.h	strvec: declare the `strvec_push_nodup()` function globally	2024-07-13 16:23:36 -07:00
sub-process.c	…
sub-process.h	…
submodule-config.c	…
submodule-config.h	…
submodule.c	Merge branch 'jc/refs-symref-referent'	2024-08-15 13:22:15 -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	…
tmp-objdir.h	…
trace.c	…
trace.h	…
trace2.c	…
trace2.h	…
trailer.c	…
trailer.h	…
transport-helper.c	…
transport-internal.h	…
transport.c	transport: fix leak with transport helper URLs	2024-08-07 17:38:31 -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	…
unpack-trees.h	…
upload-pack.c	refs: add referent to each_ref_fn	2024-08-09 08:47:34 -07:00
upload-pack.h	…
url.c	…
url.h	…
urlmatch.c	…
urlmatch.h	…
usage.c	…
userdiff.c	Merge branch 'rs/diff-exit-code-with-external-diff'	2024-06-20 15:45:08 -07:00
userdiff.h	Merge branch 'rs/diff-exit-code-with-external-diff'	2024-06-20 15:45:08 -07:00
utf8.c	…
utf8.h	…
varint.c	…
varint.h	…
version.c	…
version.h	…
versioncmp.c	…
versioncmp.h	…
walker.c	refs: add referent to each_ref_fn	2024-08-09 08:47:34 -07:00
walker.h	…
wildmatch.c	…
wildmatch.h	…
worktree.c	refs: add referent to each_ref_fn	2024-08-09 08:47:34 -07:00
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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.txt to get started, then see Documentation/giteveryday.txt for a useful minimum set of commands, and Documentation/git-<commandname>.txt for documentation of each command. If git has been correctly installed, then the tutorial can also be read with man gittutorial or git help tutorial, and the documentation of each command with man git-<commandname> or git help <commandname>.

CVS users may also want to read Documentation/gitcvs-migration.txt (man gitcvs-migration or git help cvs-migration if git is installed).

The user discussion and development of Git take place on the Git mailing list -- everyone is welcome to post bug reports, feature requests, comments and patches to git@vger.kernel.org (read Documentation/SubmittingPatches for instructions on patch submission 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