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Jeff King 18c08abc82 is_promisor_object(): walk promisor packs in pack-order When we generate the list of promisor objects, we walk every pack with a .promisor file and examine its objects for any links to other objects. By default, for_each_packed_object() will go in pack .idx order. This is the worst case with respect to our delta base cache. If we have a delta chain of A->B->C->D, then visiting A may require reconstructing both B and C, unless we also visited B recently, in which case we may have cached its value. Because .idx order is based on sha1, it's random with respect to the actual object contents and deltas, and thus we're unlikely to get many cache hits. If we instead traverse in pack order, then we get the optimal case: packs are written to keep delta families together, and to place bases before their children. Even on a modest repository like git.git, this has a noticeable speedup on p5600.4, which runs "fsck" on a partial clone with blob:none (so lots of trees which need to be walked, and which delta well): Test HEAD^ HEAD ------------------------------------------------------- 5600.4: 17.87(17.83+0.04) 15.42(15.35+0.06) -13.7% On a larger repository like linux.git, the speedup is even more pronounced: Test HEAD^ HEAD ----------------------------------------------------------- 5600.4: 322.47(322.01+0.42) 186.41(185.76+0.63) -42.2% Any other operations that call is_promisor_object(), like "rev-list --exclude-promisor-objects", would similarly benefit, but the invocations in p5600 don't actually trigger any such cases. Note that we may pay a small price to build a rev-index in-memory to do the pack-order traversal. But it's still a big net win, and even that small cost goes away if you are using pack.writeReverseIndex. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>		2022-06-16 10:03:40 -07:00
.github	Merge branch 'ab/ci-updates'	2021-12-15 09:39:49 -08:00
Documentation	Git 2.35.3	2022-04-13 15:21:34 -07:00
block-sha1	…
builtin	Merge branch 'en/keep-cwd' into maint	2022-01-28 16:45:52 -08:00
ci	Merge branch 'ab/ci-updates'	2021-12-15 09:39:49 -08:00
compat	Sync with 2.34.2	2022-03-24 00:31:42 +01:00
contrib	Merge branch 'jl/subtree-check-parents-argument-passing-fix'	2022-01-10 11:52:54 -08:00
ewah	…
git-gui	…
gitk-git	…
gitweb	Merge branch 'gh/gitweb-branch-sort'	2021-09-10 11:46:32 -07:00
mergetools	mergetools/xxdiff: prevent segfaults from stopping difftool	2021-10-13 11:04:04 -07:00
negotiator	…
perl	tests: disable fsync everywhere	2021-10-29 10:22:40 -07:00
po	l10n: Update Catalan translation	2022-01-23 09:40:52 +01:00
ppc	…
refs	Merge branch 'ab/refs-errno-cleanup'	2022-01-14 15:25:15 -08:00
reftable	reftable tests: avoid "int" overflow, use "uint64_t"	2022-01-13 13:39:09 -08:00
sha1collisiondetection@855827c583	…
sha1dc	…
sha256	…
t	Git 2.35.3	2022-04-13 15:21:34 -07:00
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	ci: update freebsd 12 cirrus job	2021-08-12 14:00:52 -07:00
.clang-format	…
.editorconfig	…
.gitattributes	…
.gitignore	Merge branch 'js/retire-preserve-merges'	2021-10-18 15:47:56 -07:00
.gitmodules	…
.mailmap	…
.tsan-suppressions	…
CODE_OF_CONDUCT.md	…
COPYING	…
GIT-VERSION-GEN	Git 2.35.3	2022-04-13 15:21:34 -07:00
INSTALL	INSTALL: mention that we need libcurl 7.19.4 or newer to build	2021-09-13 10:39:03 -07:00
LGPL-2.1	…
Makefile	Merge branch 'ab/makefile-hook-list-dependency-fix'	2022-01-10 11:52:52 -08:00
README.md	CI: use shorter names that fit in UX tooltips	2021-11-23 16:51:53 -08:00
RelNotes	Git 2.35.3	2022-04-13 15:21:34 -07:00
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	run-command API users: use strvec_pushv(), not argv assignment	2021-11-25 22:15:07 -08:00
advice.c	Merge branch 'ds/add-rm-with-sparse-index'	2021-10-13 15:15:56 -07:00
advice.h	Merge branch 'en/pull-conflicting-options' into maint	2021-10-12 13:51:36 -07:00
alias.c	…
alias.h	…
alloc.c	…
alloc.h	…
apply.c	Merge branch 'ja/i18n-similar-messages'	2022-01-10 11:52:56 -08:00
apply.h	git-apply: add --allow-empty flag	2021-12-13 14:30:25 -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: be careful about sparse directories	2021-09-07 22:41:10 -07:00
attr.h	*: remove 'const' qualifier for struct index_state	2021-04-14 13:46:00 -07:00
banned.h	…
base85.c	…
bisect.c	bisect: simplify return code from bisect_checkout()	2021-07-28 10:57:37 -07:00
bisect.h	…
blame.c	hash: provide per-algorithm null OIDs	2021-04-27 16:31:39 +09:00
blame.h	…
blob.c	…
blob.h	…
bloom.c	Merge branch 'ah/plugleaks'	2021-05-07 12:47:41 +09:00
bloom.h	…
branch.c	Merge branch 'ak/protect-any-current-branch'	2022-01-12 15:11:41 -08:00
branch.h	branch: add flags and config to inherit tracking	2021-12-20 22:40:21 -08:00
builtin.h	builtin.h: remove cmd_tar_tree() declaration	2021-10-01 14:39:46 -07:00
bulk-checkin.c	pack-write: split up finish_tmp_packfile() function	2021-09-09 18:23:11 -07:00
bulk-checkin.h	…
bundle.c	bundle API: change "flags" to be "extra_index_pack_args"	2021-09-07 10:59:23 -07:00
bundle.h	bundle API: change "flags" to be "extra_index_pack_args"	2021-09-07 10:59:23 -07:00
cache-tree.c	Merge branch 'vd/sparse-reset'	2021-12-10 14:35:12 -08:00
cache-tree.h	…
cache.h	Merge branch 'ma/header-dup-cleanup'	2022-01-12 15:11:43 -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	csum-file.h: increase hashfile buffer size	2021-05-19 16:41:21 +09:00
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	Merge branch 'ab/pickaxe-pcre2'	2021-07-13 16:52:50 -07:00
command-list.txt	generate-cmdlist.sh: replace "grep' invocation with a shell version	2021-11-05 12:01:13 -07:00
commit-graph.c	commit-graph: return if there is no git directory	2021-12-06 09:55:05 -08:00
commit-graph.h	revision: avoid hitting packfiles when commits are in commit-graph	2021-08-09 09:51:12 -07:00
commit-reach.c	…
commit-reach.h	…
commit-slab-decl.h	…
commit-slab-impl.h	…
commit-slab.h	…
commit.c	ssh signing: make verify-commit consider key lifetime	2021-12-09 13:38:04 -08:00
commit.h	advice: move advice.graftFileDeprecated squashing to commit.[ch]	2021-08-25 12:07:52 -07:00
common-main.c	Merge branch 'en/keep-cwd'	2022-01-05 14:01:28 -08:00
config.c	Merge branch 'js/branch-track-inherit'	2022-01-10 11:52:54 -08:00
config.h	Merge branch 'ab/retire-git-config-key-is-valid'	2021-10-11 10:21:47 -07:00
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 'da/rhel7-lacks-uncompress2-and-c99'	2022-01-17 15:15:59 -08:00
configure.ac	Merge branch 'hn/reftable'	2021-12-15 09:39:45 -08:00
connect.c	Merge branch 'ah/connect-parse-feature-v0-fix' into maint	2021-10-12 13:51:49 -07:00
connect.h	…
connected.c	run-command API: remove "env" member, always use "env_array"	2021-11-25 22:15:08 -08:00
connected.h	connected: refactor iterator to return next object ID directly	2021-09-01 12:43:56 -07:00
convert.c	Merge branch 'mc/clean-smudge-with-llp64'	2021-11-29 15:41:51 -08:00
convert.h	Merge branch 'ds/sparse-index-protections'	2021-04-30 13:50:26 +09:00
copy.c	…
credential.c	urlmatch.[ch]: add and use URLMATCH_CONFIG_INIT	2021-10-01 14:22:51 -07:00
credential.h	.h: move some _INIT to designated initializers	2021-07-01 12:31:45 -07:00
csum-file.c	use xopen() to handle fatal open(2) failures	2021-08-25 14:39:08 -07:00
csum-file.h	Merge branch 'tb/midx-use-checksum'	2021-07-16 17:42:46 -07:00
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	build: catch clang that identifies itself as "$VENDOR clang"	2021-08-06 13:35:37 -07:00
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-index: restore -c/--cc options handling	2021-09-07 11:11:35 -07:00
diff-merges.h	diff-index: restore -c/--cc options handling	2021-09-07 11:11:35 -07:00
diff-no-index.c	dir: introduce readdir_skip_dot_and_dotdot() helper	2021-05-27 14:02:37 +09:00
diff.c	Merge branch 'ja/i18n-similar-messages'	2022-01-10 11:52:56 -08:00
diff.h	diff.h: move pickaxe fields together again	2021-05-11 12:47:31 +09:00
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	xdiff-interface: replace discard_hunk_line() with a flag	2021-05-11 12:47:31 +09:00
diffcore-rename.c	Merge branch 'en/ort-perf-batch-15'	2021-08-24 15:32:39 -07:00
diffcore-rotate.c	…
diffcore.h	merge-ort: store filepairs and filespecs in our mem_pool	2021-07-30 09:01:19 -07:00
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.c: simplify the setup	2021-09-22 13:15:00 -07:00
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	fetch: teach independent negotiation (no packfile)	2021-05-05 10:41:29 +09:00
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: warn about symlinked dotfiles we'll open with O_NOFOLLOW	2021-05-04 11:52:02 +09:00
fsck.h	fsck: warn about symlinked dotfiles we'll open with O_NOFOLLOW	2021-05-04 11:52:02 +09:00
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	hook-list.h: add a generated list of hooks, like config-list.h	2021-09-27 09:44:54 -07:00
gettext.c	*.c static functions: add missing __attribute__((format))	2021-07-13 15:20:20 -07:00
gettext.h	gettext: remove optional non-standard parens in N_() definition	2021-09-03 11:40:30 -07:00
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	Merge branch 'mr/bisect-in-c-4'	2021-09-23 13:44:48 -07:00
git-compat-util.h	Sync with 2.34.2	2022-03-24 00:31:42 +01:00
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 'jh/p4-remove-unused'	2022-01-10 11:52:50 -08:00
git-quiltimport.sh	…
git-request-pull.sh	…
git-send-email.perl	send-email docs: add format-patch options	2021-10-28 09:06:15 -07:00
git-sh-i18n.sh	git-sh-i18n: remove unused eval_ngettext()	2021-10-21 16:04:29 -07:00
git-sh-setup.sh	Merge branch 'ab/sh-retire-helper-functions'	2021-11-29 15:41:50 -08:00
git-submodule.sh	Merge branch 'ab/unused-script-helpers'	2021-09-23 13:44:47 -07:00
git-svn.perl	git-svn: drop support for `--preserve-merges`	2021-09-07 21:45:33 -07:00
git-web--browse.sh	…
git.c	i18n: factorize "no directory given for --foo"	2022-01-05 13:31:00 -08:00
git.rc	…
gpg-interface.c	Merge branch 'fs/ssh-signing-other-keytypes'	2021-12-21 15:03:16 -08:00
gpg-interface.h	ssh signing: make verify-commit consider key lifetime	2021-12-09 13:38:04 -08:00
graph.c	graph: improve grammar of "invalid color" error message	2021-06-15 12:54:26 +09:00
graph.h	…
grep.c	Merge branch 'lh/use-gnu-color-in-grep'	2022-01-10 11:52:54 -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	hash.h: provide constants for the hash IDs	2021-09-07 10:47:43 -07:00
hashmap.c	…
hashmap.h	…
help.c	help: make auto-correction prompt more consistent	2021-12-16 13:49:39 -08:00
help.h	help: move column config discovery to help.c library	2021-09-23 10:30:43 -07:00
hex.c	hex: print objects using the hash algorithm member	2021-04-27 16:31:39 +09:00
hook.c	hook.c: add a hook_exists() wrapper and use it in bugreport.c	2021-09-27 09:44:54 -07:00
hook.h	hook.c: add a hook_exists() wrapper and use it in bugreport.c	2021-09-27 09:44:54 -07:00
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: rename CURLOPT_FILE to CURLOPT_WRITEDATA	2021-07-30 16:01:54 -07:00
http-walker.c	http: rename CURLOPT_FILE to CURLOPT_WRITEDATA	2021-07-30 16:01:54 -07:00
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	http: centralize the accounting of libcurl dependencies	2021-09-13 10:39:04 -07:00
iterator.h	…
json-writer.c	.c _init(): define in terms of corresponding *_INIT macro	2021-07-01 12:32:22 -07:00
json-writer.h	.h: move some _INIT to designated initializers	2021-07-01 12:31:45 -07:00
khash.h	khash: clarify that allocations never fail	2021-07-06 13:07:50 -07:00
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	help: fix small typo in error message	2021-05-21 07:52:10 +09:00
list-objects-filter-options.h	list-objects: implement object type filter	2021-04-19 14:09:11 -07:00
list-objects-filter.c	list-objects: implement object type filter	2021-04-19 14:09:11 -07:00
list-objects-filter.h	list-objects: support filtering by tag and commit	2021-04-12 09:35:50 -07:00
list-objects.c	list-objects.c: rename "traverse_trees_and_blobs" to "traverse_non_commits"	2021-08-12 13:08:30 -07:00
list-objects.h	…
list.h	.h: move some _INIT to designated initializers	2021-09-27 14:48:00 -07:00
ll-merge.c	ll_union_merge(): rename path_unused parameter	2021-06-11 12:37:33 +09:00
ll-merge.h	…
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	ssh signing: make git log verify key lifetime	2021-12-09 13:38:04 -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	serve.[ch]: don't pass "struct strvec *keys" to commands	2021-08-05 08:59:37 -07:00
mailinfo.c	Merge branch 'ar/mailinfo-memcmp-to-skip-prefix'	2021-07-08 13:15:03 -07:00
mailinfo.h	am: learn to process quoted lines that ends with CRLF	2021-05-10 15:06:22 +09:00
mailmap.c	Merge branch 'ab/mailmap-leakfix' into maint	2021-10-12 13:51:30 -07:00
mailmap.h	…
match-trees.c	Always use oidread to read into struct object_id	2021-04-27 16:31:38 +09:00
mem-pool.c	…
mem-pool.h	…
merge-blobs.c	…
merge-blobs.h	…
merge-ort-wrappers.c	merge(s): apply consistent punctuation to "up to date" messages	2021-05-03 14:14:56 +09:00
merge-ort-wrappers.h	…
merge-ort.c	merge-ort: fix bug with renormalization and rename/delete conflicts	2021-12-30 10:40:26 -08:00
merge-ort.h	merge-ort: avoid accidental API mis-use	2021-05-20 15:40:39 +09:00
merge-recursive.c	Merge branch 'jt/no-abuse-alternate-odb-for-submodules'	2021-10-25 16:06:56 -07:00
merge-recursive.h	…
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/plug-pack-bitmap-leaks'	2021-11-29 15:41:49 -08:00
midx.h	midx.c: write MIDX filenames to strbuf	2021-10-28 15:32:14 -07:00
name-hash.c	Merge branch 'ds/sparse-index-protections'	2021-04-30 13:50:26 +09:00
notes-cache.c	…
notes-cache.h	…
notes-merge.c	advice: remove read uses of most global `advice_` variables	2021-08-25 12:07:52 -07:00
notes-merge.h	…
notes-utils.c	…
notes-utils.h	…
notes.c	hash: provide per-algorithm null OIDs	2021-04-27 16:31:39 +09:00
notes.h	…
object-file.c	Merge branch 'ns/tmp-objdir'	2022-01-03 16:24:15 -08:00
object-name.c	advice: remove read uses of most global `advice_` variables	2021-08-25 12:07:52 -07:00
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: make oidset_size() an inline function	2021-09-12 16:14:32 -07:00
oidset.h	oidset: make oidset_size() an inline function	2021-09-12 16:14:32 -07:00
oidtree.c	oidtree: avoid unaligned access to crit-bit tree	2021-08-15 13:13:50 -07:00
oidtree.h	oidtree: a crit-bit tree for odb_loose_cache	2021-07-07 21:28:04 -07:00
pack-bitmap-write.c	pack-bitmap: read multi-pack bitmaps	2021-09-01 13:56:43 -07:00
pack-bitmap.c	Merge branch 'jk/test-bitmap-fix'	2021-12-10 14:35:08 -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-objects: move static inline from a header to the sole consumer	2021-05-27 12:14:41 +09:00
pack-revindex.c	midx.c: write MIDX filenames to strbuf	2021-10-28 15:32:14 -07:00
pack-revindex.h	pack-revindex.h: correct the time complexity descriptions	2021-09-15 22:16:25 -07:00
pack-write.c	Merge branch 'tb/pack-finalize-ordering' into maint	2021-10-12 13:51:46 -07:00
pack.h	pack-write: split up finish_tmp_packfile() function	2021-09-09 18:23:11 -07:00
packfile.c	is_promisor_object(): walk promisor packs in pack-order	2022-06-16 10:03:40 -07:00
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	parallel-checkout: support progress displaying	2021-04-19 11:57:05 -07:00
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/usage-die-message'	2022-01-10 11:52:53 -08:00
parse-options.h	Merge branch 'js/branch-track-inherit'	2022-01-10 11:52:54 -08:00
patch-delta.c	…
patch-ids.c	…
patch-ids.h	…
path.c	Sync with 2.33.2	2022-03-24 00:31:36 +01:00
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	log: avoid loading decorations for userformats that don't need it	2021-06-28 20:30:17 -07:00
prio-queue.c	…
prio-queue.h	…
progress.c	…
progress.h	…
promisor-remote.c	Merge branch 'jt/partial-clone-submodule-1'	2021-07-16 17:42:53 -07:00
promisor-remote.h	promisor-remote: support per-repository config	2021-06-28 09:57:42 -07:00
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	Merge branch 'ab/serve-cleanup'	2021-09-20 15:20:43 -07:00
protocol-caps.h	serve.[ch]: don't pass "struct strvec *keys" to commands	2021-08-05 08:59:37 -07:00
protocol.c	connect, protocol: log negotiated protocol version	2021-08-10 11:46:33 -07:00
protocol.h	…
prune-packed.c	…
prune-packed.h	…
quote.c	ref-filter: --format=%(raw) support --perl	2021-07-26 12:01:25 -07:00
quote.h	Merge branch 'zh/ref-filter-raw-data'	2021-08-24 15:32:37 -07:00
range-diff.c	i18n: refactor "foo and bar are mutually exclusive"	2022-01-05 13:29:23 -08:00
range-diff.h	…
reachable.c	object.h: add lookup_object_by_type() function	2021-06-28 20:30:18 -07:00
reachable.h	…
read-cache.c	Merge branch 'vd/sparse-reset'	2021-12-10 14:35:12 -08:00
rebase-interactive.c	rebase: remove a no-longer-used function	2021-09-07 21:45:33 -07:00
rebase-interactive.h	rebase: remove a no-longer-used function	2021-09-07 21:45:33 -07:00
rebase.c	pull: remove support for `--rebase=preserve`	2021-09-07 21:45:32 -07:00
rebase.h	pull: remove support for `--rebase=preserve`	2021-09-07 21:45:32 -07:00
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	refs: make repo_dwim_log() accept a NULL oid	2021-08-25 13:27:37 -07:00
reflog-walk.h	…
refs.c	Merge branch 'ab/refs-errno-cleanup'	2022-01-14 15:25:15 -08:00
refs.h	reflog + refs-backend: move "verbose" out of the backend	2021-12-22 16:24:14 -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	Merge branch 'gc/remote-with-fewer-static-global-variables'	2021-12-10 14:35:02 -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	repo-settings: prepare_repo_settings only in git repos	2021-12-06 09:55:06 -08:00
repository.c	Merge branch 'ns/tmp-objdir'	2022-01-03 16:24:15 -08:00
repository.h	Merge branch 'ns/tmp-objdir'	2022-01-03 16:24:15 -08:00
rerere.c	dir: introduce readdir_skip_dot_and_dotdot() helper	2021-05-27 14:02:37 +09:00
rerere.h	…
reset.c	Change unpack_trees' 'reset' flag into an enum	2021-09-27 13:38:37 -07:00
reset.h	…
resolve-undo.c	Merge branch 'ds/sparse-index-protections'	2021-04-30 13:50:26 +09:00
resolve-undo.h	…
revision.c	Merge branch 'ja/i18n-similar-messages'	2022-01-10 11:52:56 -08:00
revision.h	log: let --invert-grep only invert --grep	2021-12-17 14:13:08 -08:00
run-command.c	Merge branch 'ab/usage-die-message'	2022-01-10 11:52:53 -08:00
run-command.h	run-command API: remove "env" member, always use "env_array"	2021-11-25 22:15:08 -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 'en/keep-cwd' into maint	2022-01-28 16:45:52 -08:00
sequencer.h	Merge branch 'js/retire-preserve-merges'	2021-10-18 15:47:56 -07:00
serve.c	serve: reject commands used as capabilities	2021-09-15 12:25:19 -07:00
serve.h	serve.[ch]: remove "serve_options", split up --advertise-refs code	2021-08-05 08:59:37 -07:00
server-info.c	*.c static functions: add missing __attribute__((format))	2021-07-13 15:20:20 -07:00
setup.c	Git 2.35.3	2022-04-13 15:21:34 -07:00
sh-i18n--envsubst.c	builtins + test helpers: use return instead of exit() in cmd_*	2021-06-09 09:15:58 +09:00
sha1dc_git.c	…
sha1dc_git.h	…
shallow.c	…
shallow.h	.h: move some _INIT to designated initializers	2021-09-27 14:48:00 -07:00
shell.c	builtins + test helpers: use return instead of exit() in cmd_*	2021-06-09 09:15:58 +09:00
shortlog.h	…
sideband.c	sideband: don't lose clear-to-eol at packet boundary	2021-06-17 14:11:36 +09:00
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: add ensure_correct_sparsity function	2021-11-24 16:32:38 -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: use oideq instead of memcmp to compare object_id's	2021-06-15 12:07:56 +09:00
split-index.h	…
stable-qsort.c	…
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	.c _init(): define in terms of corresponding *_INIT macro	2021-07-01 12:32:22 -07:00
strmap.h	…
strvec.c	.c _init(): define in terms of corresponding *_INIT macro	2021-07-01 12:32:22 -07:00
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	submodule-config: pass repo upon blob config read	2021-09-08 11:48:09 -07:00
submodule-config.h	submodule-config.h: remove unused SUBMODULE_INIT macro	2021-09-27 14:47:59 -07:00
submodule.c	Merge branch 'jt/no-abuse-alternate-odb-for-submodules'	2021-10-25 16:06:56 -07:00
submodule.h	.h: move some _INIT to designated initializers	2021-09-27 14:48:00 -07:00
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	tmp-objdir: new API for creating temporary writable databases	2021-12-08 14:06:36 -08:00
tmp-objdir.h	tmp-objdir: new API for creating temporary writable databases	2021-12-08 14:06:36 -08:00
trace.c	…
trace.h	.h: move some _INIT to designated initializers	2021-09-27 14:48:00 -07:00
trace2.c	trace2: add trace2_child_ready() to report on background children	2021-09-20 08:57:58 -07:00
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: rename "fetch" in transport_vtable to "fetch_refs"	2021-08-05 08:59:36 -07:00
transport.c	Merge branch 'ps/lockfile-cleanup-fix'	2022-01-12 15:11:43 -08:00
transport.h	fetch: fix deadlock when cleaning up lockfiles in async signals	2022-01-07 13:49:19 -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	Always use oidread to read into struct object_id	2021-04-27 16:31:38 +09:00
tree-walk.h	…
tree.c	…
tree.h	…
unicode-width.h	unicode: update the width tables to Unicode 14	2021-09-17 17:26:21 -07:00
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.c: increase output buffer size	2021-12-15 11:51:18 -08:00
upload-pack.h	serve.[ch]: remove "serve_options", split up --advertise-refs code	2021-08-05 08:59:37 -07:00
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	userdiff: add and use for_each_userdiff_driver()	2021-04-08 12:19:10 -07:00
utf8.c	t0060: test ntfs/hfs-obscured dotfiles	2021-05-04 11:52:02 +09:00
utf8.h	t0060: test ntfs/hfs-obscured dotfiles	2021-05-04 11:52:02 +09:00
varint.c	…
varint.h	…
version.c	…
version.h	…
versioncmp.c	…
walker.c	lookup_unknown_object(): take a repository argument	2021-04-13 13:18:46 -07:00
walker.h	…
wildmatch.c	…
wildmatch.h	…
worktree.c	worktree: simplify find_shared_symref() memory ownership model	2021-12-01 22:18:25 -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: remove xunsetenv()	2021-10-29 14:59:29 -07:00
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	status: skip sparse-checkout percentage with sparse-index	2021-07-14 13:42:49 -07:00
xdiff-interface.c	xdiff: implement a zealous diff3, or "zdiff3"	2021-12-01 14:45:58 -08:00
xdiff-interface.h	xdiff-interface: replace discard_hunk_line() with a flag	2021-05-11 12:47:31 +09:00
zlib.c	…

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). To subscribe to the list, send an email with just "subscribe git" in the body to majordomo@vger.kernel.org. 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