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Patrick Steinhardt 0a7b38707d refs/files-backend: optimize reading of symbolic refs
When reading references via `files_read_raw_ref()` we always consult
both the loose reference, and if that wasn't found, we also consult the
packed-refs file. While this makes sense to read a generic reference, it
is wasteful in the case where we only care about symbolic references:
the packed-refs backend does not support them, and thus it cannot ever
return one for us.

Special-case reading of symbolic references for the files backend such
that we always skip asking the packed-refs backend.

We use `refs_read_symbolic_ref()` extensively to determine whether we
need to skip updating local symbolic references during a fetch, which is
why the change results in a significant speedup when doing fetches in
repositories with huge numbers of references. The following benchmark
executes a mirror-fetch in a repository with about 2 million references
via `git fetch --prune --no-write-fetch-head +refs/*:refs/*`:

    Benchmark 1: HEAD~
      Time (mean ± σ):     68.372 s ±  2.344 s    [User: 65.629 s, System: 8.786 s]
      Range (min … max):   65.745 s … 70.246 s    3 runs

    Benchmark 2: HEAD
      Time (mean ± σ):     60.259 s ±  0.343 s    [User: 61.019 s, System: 7.245 s]
      Range (min … max):   60.003 s … 60.649 s    3 runs

    Summary
      'HEAD' ran
        1.13 ± 0.04 times faster than 'HEAD~'

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-03-01 10:13:46 -08:00
.github Merge branch 'ab/ci-updates' 2021-12-15 09:39:49 -08:00
Documentation The sixth batch 2022-02-18 13:53:30 -08:00
block-sha1
builtin remote: read symbolic refs via `refs_read_symbolic_ref()` 2022-03-01 10:13:46 -08:00
ci compat: auto-detect if zlib has uncompress2() 2022-01-26 09:05:55 -08:00
compat Merge branch 'ab/auto-detect-zlib-compress2' 2022-02-16 15:14:30 -08:00
contrib Merge branch 'ab/complete-show-all-commands' 2022-02-17 16:25:06 -08:00
ewah
git-gui
gitk-git
gitweb
mergetools mergetools/xxdiff: prevent segfaults from stopping difftool 2021-10-13 11:04:04 -07:00
negotiator
perl perl Git.pm: don't ignore signalled failure in _cmd_close() 2022-02-01 15:21:19 -08:00
po l10n: Update Catalan translation 2022-01-23 09:40:52 +01:00
ppc
refs refs/files-backend: optimize reading of symbolic refs 2022-03-01 10:13:46 -08:00
reftable Merge branch 'ab/auto-detect-zlib-compress2' 2022-02-16 15:14:30 -08:00
sha1collisiondetection@855827c583
sha1dc
sha256
t Merge branch 'ps/fetch-atomic' into ps/fetch-mirror-optim 2022-03-01 10:11:00 -08:00
templates
trace2 Merge branch 'ab/run-command' 2021-12-15 09:39:47 -08:00
xdiff Merge branch 'pw/xdiff-classify-record-in-histogram' 2021-12-21 15:03:14 -08:00
.cirrus.yml
.clang-format
.editorconfig
.gitattributes
.gitignore hook: add 'run' subcommand 2022-01-07 15:19:34 -08:00
.gitmodules
.mailmap
.tsan-suppressions
CODE_OF_CONDUCT.md
COPYING
GIT-VERSION-GEN Git 2.35.1 2022-01-28 16:48:42 -08:00
INSTALL
LGPL-2.1
Makefile Merge branch 'ab/auto-detect-zlib-compress2' 2022-02-16 15:14:30 -08:00
README.md Merge branch 'po/readme-mention-contributor-hints' 2022-02-09 14:20:59 -08:00
RelNotes Name the next one 2.36 to prepare for 2.35.1 2022-01-28 16:57:10 -08:00
SECURITY.md
abspath.c
aclocal.m4
add-interactive.c *.h: move some *_INIT to designated initializers 2021-09-27 14:48:00 -07:00
add-interactive.h
add-patch.c Merge branch 'pw/add-p-hunk-split-fix' 2022-02-09 14:20:59 -08:00
advice.c branch: add --recurse-submodules option for branch creation 2022-02-04 08:16:39 -08:00
advice.h branch: add --recurse-submodules option for branch creation 2022-02-04 08:16:39 -08:00
alias.c
alias.h
alloc.c
alloc.h
apply.c Merge branch 'en/remerge-diff' 2022-02-16 15:14:29 -08:00
apply.h Merge branch 'rs/apply-symlinks-use-strset' 2022-02-05 09:42:30 -08:00
archive-tar.c run-command API users: use strvec_push(), not argv construction 2021-11-25 22:15:07 -08:00
archive-zip.c
archive.c i18n: factorize "--foo requires --bar" and the like 2022-01-05 13:31:00 -08:00
archive.h
attr.c
attr.h
banned.h
base85.c
bisect.c
bisect.h
blame.c git-rev-list: add --exclude-first-parent-only flag 2022-01-12 11:08:42 -08:00
blame.h
blob.c
blob.h
bloom.c
bloom.h
branch.c Merge branch 'gc/branch-recurse-submodules' 2022-02-18 13:53:29 -08:00
branch.h branch: add --recurse-submodules option for branch creation 2022-02-04 08:16:39 -08:00
builtin.h hook: add 'run' subcommand 2022-01-07 15:19:34 -08:00
bulk-checkin.c
bulk-checkin.h
bundle.c
bundle.h
cache-tree.c Merge branch 'vd/sparse-reset' 2021-12-10 14:35:12 -08:00
cache-tree.h
cache.h Merge branch 'ab/auto-detect-zlib-compress2' 2022-02-16 15:14:30 -08:00
cbtree.c cbtree: remove broken and unused cb_unlink 2021-12-07 15:18:35 -08:00
cbtree.h cbtree: remove broken and unused cb_unlink 2021-12-07 15:18:35 -08:00
chdir-notify.c
chdir-notify.h
check-builtins.sh
checkout.c *.[ch] *_INIT macros: use { 0 } for a "zero out" idiom 2021-09-27 14:47:59 -07:00
checkout.h
chunk-format.c
chunk-format.h
color.c color: allow colors to be prefixed with "reset" 2021-10-28 09:37:18 -07:00
color.h color: allow colors to be prefixed with "reset" 2021-10-28 09:37:18 -07:00
column.c
column.h
combine-diff.c
command-list.txt hook: add 'run' subcommand 2022-01-07 15:19:34 -08:00
commit-graph.c commit-graph: return if there is no git directory 2021-12-06 09:55:05 -08:00
commit-graph.h
commit-reach.c
commit-reach.h
commit-slab-decl.h
commit-slab-impl.h
commit-slab.h
commit.c Merge branch 'ab/config-based-hooks-2' 2022-02-09 14:21:00 -08:00
commit.h receive-pack.c: consolidate find header logic 2022-01-06 13:17:20 -08:00
common-main.c Merge branch 'en/keep-cwd' 2022-01-05 14:01:28 -08:00
config.c Merge branch 'jt/conditional-config-on-remote-url' 2022-02-09 14:20:59 -08:00
config.h config: include file if remote URL matches a glob 2022-01-18 13:55:53 -08:00
config.mak.dev Makefile: FreeBSD cannot do C99-or-below build 2022-01-18 12:16:23 -08:00
config.mak.in
config.mak.uname Merge branch 'ab/auto-detect-zlib-compress2' 2022-02-16 15:14:30 -08:00
configure.ac compat: auto-detect if zlib has uncompress2() 2022-01-26 09:05:55 -08:00
connect.c ls-remote & transport API: release "struct transport_ls_refs_options" 2022-02-06 18:02:34 -08:00
connect.h
connected.c run-command API: remove "env" member, always use "env_array" 2021-11-25 22:15:08 -08:00
connected.h
convert.c Merge branch 'mc/clean-smudge-with-llp64' 2021-11-29 15:41:51 -08:00
convert.h
copy.c
credential.c urlmatch.[ch]: add and use URLMATCH_CONFIG_INIT 2021-10-01 14:22:51 -07:00
credential.h
csum-file.c
csum-file.h
ctype.c
daemon.c Merge branch 'rs/daemon-plug-leak' 2022-01-05 14:01:31 -08:00
date.c strbuf_addftime(): handle "%s" manually 2021-11-04 12:38:09 -07:00
decorate.c
decorate.h
delta-islands.c
delta-islands.h
delta.h odb: guard against data loss checking out a huge file 2021-11-03 11:22:27 -07:00
detect-compiler
diff-delta.c
diff-lib.c Merge branch 'dd/diff-files-unmerged-fix' into maint 2021-10-12 13:51:40 -07:00
diff-merges.c diff-merges: avoid history simplifications when diffing merges 2022-02-02 10:02:28 -08:00
diff-merges.h
diff-no-index.c
diff.c Merge branch 'js/diff-filter-negation-fix' 2022-02-16 15:14:30 -08:00
diff.h Merge branch 'js/diff-filter-negation-fix' 2022-02-16 15:14:30 -08:00
diffcore-break.c
diffcore-delta.c diffcore-delta.c: LLP64 compatibility, upcast unity for left shift 2021-12-01 14:48:10 -08:00
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-malformed-pattern-fix' 2022-01-10 11:52:49 -08:00
dir.h dir: new flag to remove_dir_recurse() to spare the original_cwd 2021-12-09 13:33:13 -08:00
editor.c run-command API: remove "env" member, always use "env_array" 2021-11-25 22:15:08 -08:00
entry.c Merge branch 'mc/clean-smudge-with-llp64' 2021-11-29 15:41:51 -08:00
entry.h Merge branch 'mc/clean-smudge-with-llp64' 2021-11-29 15:41:51 -08:00
environment.c Merge branch 'ns/tmp-objdir' 2022-01-03 16:24:15 -08:00
environment.h
exec-cmd.c
exec-cmd.h
fetch-negotiator.c repo-settings: rename the traditional default fetch.negotiationAlgorithm 2022-02-02 09:36:17 -08:00
fetch-negotiator.h
fetch-pack.c i18n: factorize "--foo requires --bar" and the like 2022-01-05 13:31:00 -08:00
fetch-pack.h
fmt-merge-msg.c Merge branch 'fs/ssh-signing-key-lifetime' 2022-01-12 15:11:41 -08:00
fmt-merge-msg.h merge: allow to pretend a merge is made into a different branch 2021-12-20 14:55:02 -08:00
fsck.c
fsck.h
fsmonitor.c
fsmonitor.h
fuzz-commit-graph.c
fuzz-pack-headers.c
fuzz-pack-idx.c
generate-cmdlist.sh generate-cmdlist.sh: don't parse command-list.txt thrice 2021-11-05 12:01:13 -07:00
generate-configlist.sh
generate-hooklist.sh
gettext.c
gettext.h
git-add--interactive.perl add -p: avoid use of undefined $key when ReadKey -> EOF 2021-11-28 15:14:09 -08:00
git-archimport.perl
git-bisect.sh
git-compat-util.h Merge branch 'ab/auto-detect-zlib-compress2' 2022-02-16 15:14:30 -08:00
git-curl-compat.h http: check CURLE_SSL_PINNEDPUBKEYNOTMATCH when emitting errors 2021-09-27 10:58:07 -07:00
git-cvsexportcommit.perl
git-cvsimport.perl
git-cvsserver.perl tests: disable fsync everywhere 2021-10-29 10:22:40 -07:00
git-difftool--helper.sh
git-filter-branch.sh git-sh-setup: remove "sane_grep", it's not needed anymore 2021-10-21 16:17:57 -07:00
git-instaweb.sh git-sh-setup: remove "sane_grep", it's not needed anymore 2021-10-21 16:17:57 -07:00
git-merge-octopus.sh
git-merge-one-file.sh
git-merge-resolve.sh
git-mergetool--lib.sh
git-mergetool.sh
git-p4.py Merge branch 'ab/config-based-hooks-2' 2022-02-09 14:21:00 -08:00
git-quiltimport.sh
git-request-pull.sh
git-send-email.perl send-email: use 'git hook run' for 'sendemail-validate' 2022-01-07 15:19:35 -08:00
git-sh-i18n.sh git-sh-i18n: remove unused eval_ngettext() 2021-10-21 16:04:29 -07:00
git-sh-setup.sh git-sh-setup: remove remnant bits referring to `git-legacy-stash` 2022-01-27 18:00:09 -08:00
git-submodule.sh
git-svn.perl
git-web--browse.sh
git.c Merge branch 'ab/config-based-hooks-2' 2022-02-09 14:21:00 -08:00
git.rc
gpg-interface.c gpg-interface: trim CR from ssh-keygen 2022-01-07 13:42:49 -08:00
gpg-interface.h ssh signing: make verify-commit consider key lifetime 2021-12-09 13:38:04 -08:00
graph.c
graph.h
grep.c Merge branch 'rs/grep-expr-cleanup' 2022-02-05 09:42:30 -08:00
grep.h log: let --invert-grep only invert --grep 2021-12-17 14:13:08 -08:00
hash-lookup.c
hash-lookup.h
hash.h
hashmap.c
hashmap.h
help.c help: make auto-correction prompt more consistent 2021-12-16 13:49:39 -08:00
help.h
hex.c
hook.c hooks: convert worktree 'post-checkout' hook to hook library 2022-01-07 15:19:34 -08:00
hook.h hooks: convert worktree 'post-checkout' hook to hook library 2022-01-07 15:19:34 -08:00
http-backend.c Merge branch 'ab/usage-die-message' 2022-01-10 11:52:53 -08:00
http-fetch.c i18n: factorize "--foo requires --bar" and the like 2022-01-05 13:31:00 -08:00
http-push.c
http-walker.c
http.c run-command API users: use strvec_pushv(), not argv assignment 2021-11-25 22:15:07 -08:00
http.h http: check CURLE_SSL_PINNEDPUBKEYNOTMATCH when emitting errors 2021-09-27 10:58:07 -07:00
ident.c
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
list-objects-filter.h
list-objects.c
list-objects.h
list.h *.h: move some *_INIT to designated initializers 2021-09-27 14:48:00 -07:00
ll-merge.c ll-merge: make callers responsible for showing warnings 2022-02-02 10:02:27 -08:00
ll-merge.h ll-merge: make callers responsible for showing warnings 2022-02-02 10:02:27 -08:00
lockfile.c
lockfile.h *.[ch] *_INIT macros: use { 0 } for a "zero out" idiom 2021-09-27 14:47:59 -07:00
log-tree.c show, log: include conflict/warning messages in --remerge-diff headers 2022-02-02 10:02:28 -08:00
log-tree.h log-tree.h: remove unused function declarations 2021-10-01 14:39:46 -07:00
ls-refs.c Merge branch 'jk/ref-paranoia' 2021-10-11 10:21:47 -07:00
ls-refs.h
mailinfo.c
mailinfo.h
mailmap.c Merge branch 'ab/mailmap-leakfix' into maint 2021-10-12 13:51:30 -07:00
mailmap.h
match-trees.c
mem-pool.c mem-pool: don't assume uintmax_t is aligned enough for all types 2022-01-24 10:26:40 -08:00
mem-pool.h
merge-blobs.c ll-merge: make callers responsible for showing warnings 2022-02-02 10:02:27 -08:00
merge-blobs.h
merge-ort-wrappers.c
merge-ort-wrappers.h
merge-ort.c Merge branch 'en/remerge-diff' 2022-02-16 15:14:29 -08:00
merge-ort.h show, log: include conflict/warning messages in --remerge-diff headers 2022-02-02 10:02:28 -08:00
merge-recursive.c merge-ort: format messages slightly different for use in headers 2022-02-02 10:02:27 -08:00
merge-recursive.h merge-ort: format messages slightly different for use in headers 2022-02-02 10:02:27 -08:00
merge.c unpack-trees: introduce preserve_ignored to unpack_trees_options 2021-09-27 13:38:37 -07:00
mergesort.c mergesort: avoid left shift overflow 2021-11-18 12:42:06 -08:00
mergesort.h
midx.c Merge branch 'tb/midx-no-bitmap-for-no-objects' 2022-02-18 13:53:30 -08:00
midx.h midx: read `RIDX` chunk when present 2022-01-27 12:07:53 -08:00
name-hash.c
notes-cache.c
notes-cache.h
notes-merge.c ll-merge: make callers responsible for showing warnings 2022-02-02 10:02:27 -08:00
notes-merge.h
notes-utils.c
notes-utils.h
notes.c
notes.h
object-file.c Merge branch 'ns/tmp-objdir' 2022-01-03 16:24:15 -08:00
object-name.c cat-file: use GET_OID_ONLY_TO_DIE in --(textconv|filters) 2021-12-30 13:05:29 -08:00
object-store.h Merge branch 'ns/tmp-objdir' 2022-01-03 16:24:15 -08:00
object.c Merge branch 'ns/tmp-objdir' 2022-01-03 16:24:15 -08:00
object.h *.[ch] *_INIT macros: use { 0 } for a "zero out" idiom 2021-09-27 14:47:59 -07:00
oid-array.c
oid-array.h *.[ch] *_INIT macros: use { 0 } for a "zero out" idiom 2021-09-27 14:47:59 -07:00
oidmap.c
oidmap.h
oidset.c
oidset.h
oidtree.c
oidtree.h
pack-bitmap-write.c
pack-bitmap.c pack-bitmap.c: gracefully fallback after opening pack/MIDX 2022-01-27 12:07:53 -08:00
pack-bitmap.h Merge branch 'tb/repack-write-midx' 2021-10-18 15:47:57 -07:00
pack-check.c Merge branch 'ab/fsck-unexpected-type' 2021-10-25 16:06:56 -07:00
pack-objects.c
pack-objects.h
pack-revindex.c midx: read `RIDX` chunk when present 2022-01-27 12:07:53 -08:00
pack-revindex.h
pack-write.c Merge branch 'tb/pack-finalize-ordering' into maint 2021-10-12 13:51:46 -07:00
pack.h
packfile.c Merge branch 'jt/pack-header-lshift-overflow' 2022-01-12 15:11:41 -08:00
packfile.h Merge branch 'tb/pack-revindex-on-disk-cleanup' 2021-12-15 09:39:50 -08:00
pager.c pager: fix crash when pager program doesn't exist 2021-11-24 16:14:10 -08:00
parallel-checkout.c Merge branch 'mc/clean-smudge-with-llp64' 2021-11-29 15:41:51 -08:00
parallel-checkout.h
parse-options-cb.c branch: add flags and config to inherit tracking 2021-12-20 22:40:21 -08:00
parse-options.c Merge branch 'ab/cat-file' 2022-02-05 09:42:31 -08:00
parse-options.h Merge branch 'rs/parse-options-lithelp-help' 2022-02-11 16:55:58 -08:00
patch-delta.c
patch-ids.c
patch-ids.h
path.c
path.h *.[ch] *_INIT macros: use { 0 } for a "zero out" idiom 2021-09-27 14:47:59 -07:00
pathspec.c add: skip tracked paths outside sparse-checkout cone 2021-09-28 10:31:02 -07:00
pathspec.h pathspec: use BUG(...) not die("BUG:%s:%d....", <file>, <line>) 2021-12-07 12:31:17 -08:00
pkt-line.c fetch-pack: redact packfile urls in traces 2021-11-11 10:07:43 -08:00
pkt-line.h fetch-pack: redact packfile urls in traces 2021-11-11 10:07:43 -08:00
preload-index.c
pretty.c Merge branch 'es/pretty-describe-more' 2021-12-15 09:39:48 -08:00
pretty.h
prio-queue.c
prio-queue.h
progress.c
progress.h
promisor-remote.c
promisor-remote.h
prompt.c run-command API users: use strvec_push(), not argv construction 2021-11-25 22:15:07 -08:00
prompt.h
protocol-caps.c
protocol-caps.h
protocol.c
protocol.h
prune-packed.c
prune-packed.h
quote.c
quote.h
range-diff.c i18n: refactor "foo and bar are mutually exclusive" 2022-01-05 13:29:23 -08:00
range-diff.h
reachable.c
reachable.h
read-cache.c Merge branch 'vd/sparse-clean-etc' 2022-02-17 16:25:05 -08:00
rebase-interactive.c
rebase-interactive.h
rebase.c
rebase.h
ref-filter.c i18n: ref-filter: factorize "%(foo) atom used without %(bar) atom" 2022-01-05 13:31:00 -08:00
ref-filter.h for-each-ref: delay parsing of --sort=<atom> options 2021-10-20 14:33:07 -07:00
reflog-walk.c
reflog-walk.h
refs.c refs: add ability for backends to special-case reading of symbolic refs 2022-03-01 10:13:46 -08:00
refs.h refs: add ability for backends to special-case reading of symbolic refs 2022-03-01 10:13:46 -08:00
refspec.c
refspec.h
remote-curl.c run-command API users: use strvec_pushv(), not argv assignment 2021-11-25 22:15:07 -08:00
remote.c remote: read symbolic refs via `refs_read_symbolic_ref()` 2022-03-01 10:13:46 -08:00
remote.h remote: die if branch is not found in repository 2021-11-18 22:31:19 -08:00
replace-object.c
replace-object.h
repo-settings.c Merge branch 'en/fetch-negotiation-default-fix' 2022-02-16 15:14:30 -08:00
repository.c Merge branch 'ns/tmp-objdir' 2022-01-03 16:24:15 -08:00
repository.h Merge branch 'en/fetch-negotiation-default-fix' 2022-02-16 15:14:30 -08:00
rerere.c ll-merge: make callers responsible for showing warnings 2022-02-02 10:02:27 -08:00
rerere.h
reset.c Merge branch 'pw/use-in-process-checkout-in-rebase' 2022-02-18 13:53:27 -08:00
reset.h rebase --apply: set ORIG_HEAD correctly 2022-01-26 12:08:53 -08:00
resolve-undo.c
resolve-undo.h
revision.c git-rev-list: add --exclude-first-parent-only flag 2022-01-12 11:08:42 -08:00
revision.h Merge branch 'jz/rev-list-exclude-first-parent-only' 2022-02-17 16:25:05 -08:00
run-command.c Merge branch 'ab/config-based-hooks-2' 2022-02-09 14:21:00 -08:00
run-command.h run-command: remove old run_hook_{le,ve}() hook API 2022-01-07 15:19:35 -08:00
send-pack.c Merge branch 'fs/ssh-signing' 2021-10-25 16:06:58 -07:00
send-pack.h
sequencer.c Merge branch 'ps/avoid-unnecessary-hook-invocation-with-packed-refs' 2022-02-18 13:53:27 -08:00
sequencer.h create_autostash(): remove unneeded parameter 2022-01-26 12:08:53 -08:00
serve.c
serve.h
server-info.c
setup.c setup: introduce startup_info->original_cwd 2021-12-09 13:33:12 -08:00
sh-i18n--envsubst.c
sha1dc_git.c
sha1dc_git.h
shallow.c git-rev-list: add --exclude-first-parent-only flag 2022-01-12 11:08:42 -08:00
shallow.h *.h: move some *_INIT to designated initializers 2021-09-27 14:48:00 -07:00
shell.c
shortlog.h
sideband.c
sideband.h
sigchain.c
sigchain.h
simple-ipc.h Merge branch 'jh/builtin-fsmonitor-part1' 2021-10-13 15:15:58 -07:00
sparse-index.c sparse-index: sparse index is disallowed when split index is active 2022-01-23 17:06:05 -08:00
sparse-index.h sparse-index: add ensure_correct_sparsity function 2021-11-24 16:32:38 -08:00
split-index.c split-index: it really is incompatible with the sparse index 2022-01-23 17:06:23 -08:00
split-index.h
stable-qsort.c stable-qsort: avoid using potentially unaligned access 2022-01-07 15:48:40 -08:00
strbuf.c strbuf_addftime(): handle "%s" manually 2021-11-04 12:38:09 -07:00
strbuf.h strbuf.h: use BUG(...) not die("BUG: ...") 2021-12-07 12:31:16 -08:00
streaming.c object-file.c: stop dying in parse_loose_header() 2021-10-01 15:06:00 -07:00
streaming.h
string-list.c string-list.[ch]: remove string_list_init() compatibility function 2021-09-28 14:43:38 -07:00
string-list.h string-list.[ch]: remove string_list_init() compatibility function 2021-09-28 14:43:38 -07:00
strmap.c
strmap.h
strvec.c
strvec.h *.h: move some *_INIT to designated initializers 2021-09-27 14:48:00 -07:00
sub-process.c run-command API: remove "argv" member, always use "args" 2021-11-25 22:15:07 -08:00
sub-process.h
submodule-config.c branch: add --recurse-submodules option for branch creation 2022-02-04 08:16:39 -08:00
submodule-config.h branch: add --recurse-submodules option for branch creation 2022-02-04 08:16:39 -08:00
submodule.c branch: add --recurse-submodules option for branch creation 2022-02-04 08:16:39 -08:00
submodule.h branch: add --recurse-submodules option for branch creation 2022-02-04 08:16:39 -08:00
symlinks.c symlinks: do not include startup_info->original_cwd in dir removal 2021-12-09 13:33:13 -08:00
tag.c ssh signing: make verify-tag consider key lifetime 2021-12-09 13:38:04 -08:00
tag.h
tar.h
tempfile.c
tempfile.h
thread-utils.c
thread-utils.h
tmp-objdir.c log: clean unneeded objects during `log --remerge-diff` 2022-02-02 10:02:27 -08:00
tmp-objdir.h log: clean unneeded objects during `log --remerge-diff` 2022-02-02 10:02:27 -08:00
trace.c
trace.h *.h: move some *_INIT to designated initializers 2021-09-27 14:48:00 -07:00
trace2.c
trace2.h Merge branch 'jh/builtin-fsmonitor-part1' 2021-10-13 15:15:58 -07:00
trailer.c run-command API: remove "env" member, always use "env_array" 2021-11-25 22:15:08 -08:00
trailer.h
transport-helper.c Merge branch 'jk/http-push-status-fix' 2021-10-29 15:43:12 -07:00
transport-internal.h
transport.c ls-remote & transport API: release "struct transport_ls_refs_options" 2022-02-06 18:02:34 -08:00
transport.h ls-remote & transport API: release "struct transport_ls_refs_options" 2022-02-06 18:02:34 -08:00
tree-diff.c pathspec: use BUG(...) not die("BUG:%s:%d....", <file>, <line>) 2021-12-07 12:31:17 -08:00
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 Merge branch 'en/keep-cwd' 2022-01-05 14:01:28 -08:00
unpack-trees.h unpack-trees: refuse to remove startup_info->original_cwd 2021-12-09 13:33:12 -08:00
upload-pack.c upload-pack: look up "want" lines via commit-graph 2022-03-01 10:13:45 -08:00
upload-pack.h
url.c
url.h
urlmatch.c urlmatch: add underscore to URL_HOST_CHARS 2021-10-12 18:29:25 -07:00
urlmatch.h urlmatch.[ch]: add and use URLMATCH_CONFIG_INIT 2021-10-01 14:22:51 -07:00
usage.c config API: use get_error_routine(), not vreportf() 2021-12-07 13:25:16 -08:00
userdiff.c userdiff-cpp: back out the digit-separators in numbers 2021-10-25 08:47:44 -07:00
userdiff.h
utf8.c
utf8.h
varint.c
varint.h
version.c
version.h
versioncmp.c
walker.c
walker.h
wildmatch.c
wildmatch.h
worktree.c refs API: remove "failure_errno" from refs_resolve_ref_unsafe() 2022-01-26 15:58:41 -08:00
worktree.h worktree: simplify find_shared_symref() memory ownership model 2021-12-01 22:18:25 -08:00
wrap-for-bin.sh
wrapper.c wrapper: use a CSPRNG to generate random file names 2022-01-17 14:17:51 -08:00
write-or-die.c Merge branch 'ew/test-wo-fsync' 2021-12-15 09:39:52 -08:00
ws.c
wt-status.c Merge branch 'xw/am-empty' 2022-01-05 14:01:28 -08:00
wt-status.h
xdiff-interface.c xdiff: implement a zealous diff3, or "zdiff3" 2021-12-01 14:45:58 -08:00
xdiff-interface.h
zlib.c

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.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 with just "subscribe git" in the body to majordomo@vger.kernel.org (not the Git list). The mailing list archives are available at https://lore.kernel.org/git/, http://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