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Jeff King 20b031fede packfile: add kept-pack cache for find_kept_pack_entry() 
In a recent patch we added a function 'find_kept_pack_entry()' to look
for an object only among kept packs.

While this function avoids doing any lookup work in non-kept packs, it
is still linear in the number of packs, since we have to traverse the
linked list of packs once per object. Let's cache a reduced version of
that list to save us time.

Note that this cache will last the lifetime of the program. We could
invalidate it on reprepare_packed_git(), but there's not much point in
being rigorous here:

  - we might already fail to notice new .keep packs showing up after the
    program starts. We only reprepare_packed_git() when we fail to find
    an object. But adding a new pack won't cause that to happen.
    Somebody repacking could add a new pack and delete an old one, but
    most of the time we'd have a descriptor or mmap open to the old
    pack anyway, so we might not even notice.

  - in pack-objects we already cache the .keep state at startup, since
    56dfeb6263 (pack-objects: compute local/ignore_pack_keep early,
    2016-07-29). So this is just extending that concept further.

  - we don't have to worry about any packed_git being removed; we always
    keep the old structs around, even after reprepare_packed_git()

We do defensively invalidate the cache in case the set of kept packs
being asked for changes (e.g., only in-core kept packs were cached, but
suddenly the caller also wants on-disk kept packs, too). In theory we
could build all three caches and switch between them, but it's not
necessary, since this patch (and series) never changes the set of kept
packs that it wants to inspect from the cache.

So that "optimization" is more about being defensive in the face of
future changes than it is about asking for multiple kinds of kept packs
in this patch.

Here are p5303 results (as always, measured against the kernel):

  Test                                        HEAD^                   HEAD
  -----------------------------------------------------------------------------------------------
  5303.5: repack (1)                          57.34(54.66+10.88)      56.98(54.36+10.98) -0.6%
  5303.6: repack with kept (1)                57.38(54.83+10.49)      57.17(54.97+10.26) -0.4%
  5303.11: repack (50)                        71.70(88.99+4.74)       71.62(88.48+5.08) -0.1%
  5303.12: repack with kept (50)              72.58(89.61+4.78)       71.56(88.80+4.59) -1.4%
  5303.17: repack (1000)                      217.19(491.72+14.25)    217.31(490.82+14.53) +0.1%
  5303.18: repack with kept (1000)            246.12(520.07+14.93)    217.08(490.37+15.10) -11.8%

and the --stdin-packs case, which scales a little bit better (although
not by that much even at 1,000 packs):

  5303.7: repack with --stdin-packs (1)       0.00(0.00+0.00)         0.00(0.00+0.00) =
  5303.13: repack with --stdin-packs (50)     3.43(11.75+0.24)        3.43(11.69+0.30) +0.0%
  5303.19: repack with --stdin-packs (1000)   130.50(307.15+7.66)     125.13(301.36+8.04) -4.1%

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
 		2021-02-22 23:30:52 -08:00
.github Merge branch 'tb/ci-run-cocci-with-18.04' into maint 2021-02-11 13:57:36 -08:00
Documentation builtin/pack-objects.c: add '--stdin-packs' option 2021-02-22 23:30:52 -08:00
block-sha1 block-sha1: take a size_t length parameter 2020-11-16 13:41:35 -08:00
builtin builtin/pack-objects.c: rewrite honor-pack-keep logic 2021-02-22 23:30:52 -08:00
ci Merge branch 'tb/pack-revindex-on-disk' 2021-02-12 14:21:04 -08:00
compat MacOS: precompose_argv_prefix() 2021-02-03 14:09:37 -08:00
contrib Merge branch 'jk/complete-branch-force-delete' 2021-02-12 14:21:04 -08:00
ewah bitmap: implement bitmap_is_subset() 2020-12-08 14:48:16 -08:00
git-gui Merge https://github.com/prati0100/git-gui 2020-12-18 15:07:10 -08:00
gitk-git Merge remote-tracking branch 'paulus/master' into pm/gitk-update 2020-10-03 10:06:27 -07:00
gitweb gitweb/Makefile: conditionally include ../GIT-VERSION-FILE 2020-12-08 16:56:56 -08:00
mergetools Merge branch 'pd/mergetool-nvimdiff' 2020-11-21 15:14:39 -08:00
negotiator negotiator/noop: add noop fetch negotiator 2020-08-18 13:25:05 -07:00
perl Merge branch 'jk/perl-warning' 2020-11-09 14:06:25 -08:00
po tests: remove support for GIT_TEST_GETTEXT_POISON 2021-01-21 15:50:01 -08:00
ppc
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refs refs/files-backend: don't peek into `struct lock_file` 2021-01-06 13:53:32 -08:00
sha1collisiondetection@855827c583
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sha1dc Merge branch 'jk/lore-is-the-archive' 2019-12-06 15:09:23 -08:00
sha256 hash: implement and use a context cloning function 2020-02-24 09:33:21 -08:00
t p5303: measure time to repack with keep 2021-02-22 23:30:52 -08:00
templates hook: add sample template for push-to-checkout 2020-10-16 08:47:02 -07:00
trace2 trace2: teach Git to log environment variables 2020-03-23 13:14:53 -07:00
vcs-svn drop vcs-svn experiment 2020-08-13 11:02:15 -07:00
xdiff diff: add -I<regex> that ignores matching changes 2020-10-20 12:53:26 -07:00
.cirrus.yml CI: add FreeBSD CI support via Cirrus-CI 2019-12-20 12:09:12 -08:00
.clang-format
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.editorconfig editorconfig: indent text files with tabs 2020-01-06 08:46:32 -08:00
.gitattributes CoC: explicitly take any whitespace breakage 2021-01-04 09:44:49 -08:00
.gitignore Merge branch 'fc/random-cleanup' 2020-12-08 15:11:21 -08:00
.gitmodules
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.mailmap Merge branch 'bc/wildcard-credential' 2020-03-05 10:43:02 -08:00
.travis.yml ci: remove GETTEXT_POISON jobs 2021-01-21 15:50:00 -08:00
.tsan-suppressions replace-object: make replace operations thread-safe 2020-01-17 13:52:14 -08:00
CODE_OF_CONDUCT.md CoC: update to version 2.0 + local changes 2021-01-13 17:45:04 -08:00
COPYING
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GIT-VERSION-GEN Git 2.30.1 2021-02-08 14:05:55 -08:00
INSTALL doc: mention Python 3.x supports 2020-12-14 15:01:03 -08:00
LGPL-2.1
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Makefile Merge branch 'ab/grep-pcre-invalid-utf8' 2021-02-10 14:48:33 -08:00
README.md ci: retire the Azure Pipelines definition 2020-04-10 10:30:40 -07:00
RelNotes Prepare for 2.30.1 2021-02-05 16:31:28 -08:00
abspath.c abspath: add a function to resolve paths with missing components 2020-12-12 23:35:47 -08:00
aclocal.m4
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add-interactive.c Merge branch 'js/add-i-color-fix' 2020-12-08 15:11:17 -08:00
add-interactive.h built-in add -p: respect the `interactive.singlekey` config setting 2020-01-15 12:06:17 -08:00
add-patch.c Merge branch 'js/add-i-color-fix' 2020-12-08 15:11:17 -08:00
advice.c push: parse and set flag for "--force-if-includes" 2020-10-03 09:59:19 -07:00
advice.h push: parse and set flag for "--force-if-includes" 2020-10-03 09:59:19 -07:00
alias.c
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alias.h
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alloc.c commit: move members graph_pos, generation to a slab 2020-06-17 14:37:30 -07:00
alloc.h object: drop parsed_object_pool->commit_count 2020-06-17 14:37:14 -07:00
apply.c Merge branch 'ab/unreachable-break' 2020-12-18 15:15:18 -08:00
apply.h
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archive-tar.c archive: support compression levels beyond 9 2020-11-09 11:25:45 -08:00
archive-zip.c archive: read short blobs in archive.c::write_archive_entry() 2020-09-19 15:56:05 -07:00
archive.c Merge branch 'rs/archive-plug-leak-refname' 2020-11-25 15:24:53 -08:00
archive.h Merge branch 'rs/archive-plug-leak-refname' 2020-11-25 15:24:53 -08:00
attr.c Use new HASHMAP_INIT macro to simplify hashmap initialization 2020-11-11 12:55:27 -08:00
attr.h attr: move doc to attr.h 2019-11-18 15:21:28 +09:00
banned.h banned.h: mark ctime_r() and asctime_r() as banned 2020-12-02 14:30:39 -08:00
base85.c
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bisect.c hash-lookup: rename from sha1-lookup 2021-01-04 13:01:55 -08:00
bisect.h bisect: combine args passed to find_bisection() 2020-08-07 15:13:03 -07:00
blame.c Merge branch 'en/strmap' 2020-11-21 15:14:38 -08:00
blame.h blame: simplify 'setup_blame_bloom_data' interface 2020-11-01 15:54:15 -08:00
blob.c object: drop parsed_object_pool->commit_count 2020-06-17 14:37:14 -07:00
blob.h
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bloom.c Use new HASHMAP_INIT macro to simplify hashmap initialization 2020-11-11 12:55:27 -08:00
bloom.h bloom: encode out-of-bounds filters as non-empty 2020-09-17 21:55:50 -07:00
branch.c wt-status: tolerate dangling marks 2020-09-02 14:39:25 -07:00
branch.h
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builtin.h Merge branch 'ds/maintenance-part-3' 2020-11-18 13:32:53 -08:00
bulk-checkin.c
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bulk-checkin.h
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bundle.c bundle: arguments can be read from stdin 2021-01-11 21:50:41 -08:00
bundle.h Merge branch 'bc/sha-256-part-3' 2020-08-11 18:04:11 -07:00
cache-tree.c cache-tree: extract subtree_pos() 2021-01-23 17:14:07 -08:00
cache-tree.h cache-tree: extract subtree_pos() 2021-01-23 17:14:07 -08:00
cache.h Merge branch 'ds/more-index-cleanups' 2021-02-10 14:48:33 -08:00
chdir-notify.c
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chdir-notify.h
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check-builtins.sh
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check_bindir
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checkout.c config: drop git_config_get_string_const() 2020-08-17 15:35:47 -07:00
checkout.h
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color.c color.c: alias RGB colors 8-15 to aixterm colors 2020-02-11 11:19:00 -08:00
color.h
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column.c Merge branch 'jk/strvec' 2020-08-10 10:23:57 -07:00
column.h
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combine-diff.c Merge branch 'jk/diff-cc-oidfind-fix' 2020-10-05 14:01:55 -07:00
command-list.txt mailmap doc: create a new "gitmailmap(5)" man page 2021-01-12 14:04:39 -08:00
commit-graph.c Merge branch 'js/commit-graph-warning' 2021-02-17 17:21:42 -08:00
commit-graph.h commit-reach: use corrected commit dates in paint_down_to_common() 2021-01-18 16:21:18 -08:00
commit-reach.c commit-reach: use corrected commit dates in paint_down_to_common() 2021-01-18 16:21:18 -08:00
commit-reach.h commit-graph: return 64-bit generation number 2021-01-18 16:21:18 -08:00
commit-slab-decl.h Merge branch 'sg/commit-graph-cleanups' into master 2020-07-30 13:20:30 -07:00
commit-slab-impl.h commit-slab: add a function to deep free entries on the slab 2020-06-08 12:28:49 -07:00
commit-slab.h commit-slab: add a function to deep free entries on the slab 2020-06-08 12:28:49 -07:00
commit.c Merge branch 'ak/corrected-commit-date' 2021-02-17 17:21:40 -08:00
commit.h Merge branch 'ds/commit-graph-genno-fix' 2021-02-17 17:21:40 -08:00
common-main.c
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config.c Merge branch 'ak/config-bad-bool-error' 2021-02-17 17:21:43 -08:00
config.h Merge branch 'ps/config-env-pairs' 2021-01-25 14:19:19 -08:00
config.mak.dev Merge branch 'jc/sparse-error-for-developer-build' 2020-11-18 13:32:54 -08:00
config.mak.in
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config.mak.uname config.mak.uname: remove redundant NO_LIBPCRE1_JIT flag 2021-01-23 21:15:12 -08:00
configure.ac Remove support for v1 of the PCRE library 2021-01-23 21:15:43 -08:00
connect.c Merge branch 'jt/clone-unborn-head' 2021-02-17 17:21:40 -08:00
connect.h Merge branch 'bc/sha-256-part-2' 2020-07-06 22:09:13 -07:00
connected.c Merge branch 'rs/more-buffered-io' 2020-08-24 14:54:31 -07:00
connected.h connected: always use partial clone optimization 2020-03-29 10:37:44 -07:00
convert.c convert: drop unused crlf_action from check_global_conv_flags_eol() 2020-09-30 12:53:47 -07:00
convert.h convert: provide additional metadata to filters 2020-03-16 11:37:02 -07:00
copy.c
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credential.c credential: treat CR/LF as line endings in the credential protocol 2020-10-03 10:41:03 -07:00
credential.h credential: correct order of parameters for credential_match 2020-05-04 22:56:33 -07:00
csum-file.c hash: implement and use a context cloning function 2020-02-24 09:33:21 -08:00
csum-file.h csum-file: add hashwrite_be64() 2020-11-12 09:40:06 -08:00
ctype.c
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daemon.c strvec: rename struct fields 2020-07-30 19:18:06 -07:00
date.c date.c: allow compact version of ISO-8601 datetime 2020-04-24 14:06:09 -07:00
decorate.c
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decorate.h
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delta-islands.c oid_array: rename source file from sha1-array 2020-03-30 10:59:08 -07:00
delta-islands.h
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delta.h
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detect-compiler
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diff-delta.c
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diff-lib.c Merge branch 'rs/plug-diff-cache-leak' 2020-11-25 15:24:53 -08:00
diff-merges.c diff-merges: add '--diff-merges=1' as synonym for 'first-parent' 2020-12-21 13:47:32 -08:00
diff-merges.h diff-merges: get rid of now empty diff_merges_init_revs() 2020-12-21 13:47:31 -08:00
diff-no-index.c
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diff.c Merge branch 'sj/untracked-files-in-submodule-directory-is-not-dirty' 2021-01-25 14:19:18 -08:00
diff.h Merge branch 'sj/untracked-files-in-submodule-directory-is-not-dirty' 2021-01-25 14:19:18 -08:00
diffcore-break.c diff: restrict when prefetching occurs 2020-04-07 16:09:29 -07:00
diffcore-delta.c
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diffcore-order.c
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diffcore-pickaxe.c
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diffcore-rename.c merge-ort: begin performance work; instrument with trace2_region_* calls 2021-01-23 23:30:06 -08:00
diffcore.h diff: restrict when prefetching occurs 2020-04-07 16:09:29 -07:00
dir-iterator.c
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dir-iterator.h
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dir.c sparse-checkout: load sparse-checkout patterns 2021-01-23 17:14:07 -08:00
dir.h sparse-checkout: load sparse-checkout patterns 2021-01-23 17:14:07 -08:00
editor.c config: fix leaks from git_config_get_string_const() 2020-08-14 10:52:04 -07:00
entry.c checkout_entry(): remove unreachable error() call 2020-08-18 13:26:10 -07:00
environment.c config: allow specifying config entries via envvar pairs 2021-01-15 13:03:45 -08:00
environment.h environment: make `getenv_safe()` a public function 2021-01-15 13:03:45 -08:00
exec-cmd.c strvec: rename struct fields 2020-07-30 19:18:06 -07:00
exec-cmd.h argv-array: rename to strvec 2020-07-28 15:02:17 -07:00
fetch-negotiator.c negotiator/noop: add noop fetch negotiator 2020-08-18 13:25:05 -07:00
fetch-negotiator.h
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fetch-pack.c fetch-pack: refactor writing promisor file 2021-01-12 16:01:07 -08:00
fetch-pack.h Merge branch 'jt/lazy-fetch' 2020-09-03 12:37:04 -07:00
fmt-merge-msg.c Merge branch 'so/log-diff-merge' 2021-02-05 16:40:44 -08:00
fmt-merge-msg.h Lib-ify fmt-merge-msg 2020-03-24 15:04:43 -07:00
fsck.c Merge branch 'js/fsck-name-objects-fix' 2021-02-17 17:21:42 -08:00
fsck.h fsck: make fsck_config() re-usable 2021-01-05 14:58:29 -08:00
fsmonitor.c fsmonitor: de-duplicate BUG()s around dirty bits 2021-01-23 17:14:07 -08:00
fsmonitor.h
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fuzz-commit-graph.c commit-graph: pass a 'struct repository *' in more places 2020-09-09 12:51:48 -07:00
fuzz-pack-headers.c
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fuzz-pack-idx.c
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generate-cmdlist.sh Fit to Plan 9's ANSI/POSIX compatibility layer 2020-09-09 22:31:31 -07:00
generate-configlist.sh help: move list_config_help to builtin/help 2020-04-16 15:22:16 -07:00
gettext.c Merge branch 'ab/detox-gettext-tests' 2021-02-10 14:48:33 -08:00
gettext.h tests: remove support for GIT_TEST_GETTEXT_POISON 2021-01-21 15:50:01 -08:00
git-add--interactive.perl Merge branch 'js/add-i-color-fix' 2020-12-08 15:11:17 -08:00
git-archimport.perl
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git-bisect.sh bisect--helper: reimplement `bisect_skip` shell function in C 2021-02-03 14:52:09 -08:00
git-compat-util.h Merge branch 'tb/precompose-prefix-too' 2021-02-12 14:21:04 -08:00
git-cvsexportcommit.perl cvsexportcommit: do not run git programs in dashed form 2020-08-26 14:49:52 -07:00
git-cvsimport.perl git-cvsimport: port to SHA-256 2020-06-22 11:21:07 -07:00
git-cvsserver.perl git-cvsserver: port to SHA-256 2020-06-22 11:21:07 -07:00
git-difftool--helper.sh mergetool: break setup_tool out into separate initialization function 2021-02-09 14:09:16 -08:00
git-filter-branch.sh
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git-instaweb.sh
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git-merge-octopus.sh
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git-merge-one-file.sh
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git-merge-resolve.sh
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git-mergetool--lib.sh Merge branch 'sh/mergetool-hideresolved' 2021-02-17 17:21:41 -08:00
git-mergetool.sh mergetool: add per-tool support and overrides for the hideResolved flag 2021-02-09 14:09:16 -08:00
git-p4.py Merge branch 'dl/p4-encode-after-kw-expansion' into maint 2021-02-08 14:05:54 -08:00
git-quiltimport.sh
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git-rebase--preserve-merges.sh rebase: remove unused function reschedule_last_action 2020-08-12 12:25:42 -07:00
git-request-pull.sh
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git-send-email.perl git-send-email: die if sendmail.* config is set 2020-07-23 18:00:34 -07:00
git-sh-i18n.sh tests: remove support for GIT_TEST_GETTEXT_POISON 2021-01-21 15:50:01 -08:00
git-sh-setup.sh
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git-submodule.sh submodule: fix fetch_in_submodule logic 2020-11-24 13:14:09 -08:00
git-svn.perl perl: check for perl warnings while running tests 2020-10-21 23:11:48 -07:00
git-web--browse.sh
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git.c Merge branch 'tb/precompose-prefix-too' 2021-02-12 14:21:04 -08:00
git.rc
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gpg-interface.c strvec: fix indentation in renamed calls 2020-07-28 15:02:18 -07:00
gpg-interface.h gpg-interface: prefer check_signature() for GPG verification 2020-03-15 09:46:28 -07:00
graph.c strvec: rename struct fields 2020-07-30 19:18:06 -07:00
graph.h graph: move doc to graph.h and graph.c 2019-11-18 15:21:28 +09:00
grep.c Merge branch 'ab/grep-pcre-invalid-utf8' 2021-02-10 14:48:33 -08:00
grep.h Merge branch 'ab/grep-pcre-invalid-utf8' 2021-02-10 14:48:33 -08:00
hash-lookup.c oid_pos(): access table through const pointers 2021-01-28 12:03:26 -08:00
hash-lookup.h oid_pos(): access table through const pointers 2021-01-28 12:03:26 -08:00
hash.h cache.h: move hash/oid functions to hash.h 2020-12-04 13:55:14 -08:00
hashmap.c hashmap: provide deallocation function names 2020-11-02 12:15:50 -08:00
hashmap.h hashmap: provide deallocation function names 2020-11-02 12:15:50 -08:00
help.c help.c: help.autocorrect=never means "do not compute suggestions" 2020-11-25 13:02:15 -08:00
help.h help: do not expect built-in commands to be hardlinked 2020-10-07 15:25:10 -07:00
hex.c hex: add functions to parse hex object IDs in any algorithm 2020-02-24 09:33:21 -08:00
http-backend.c strvec: fix indentation in renamed calls 2020-07-28 15:02:18 -07:00
http-fetch.c http-fetch: set up git directory before parsing pack hashes 2020-07-30 09:16:48 -07:00
http-push.c strvec: rename struct fields 2020-07-30 19:18:06 -07:00
http-walker.c http: refactor finish_http_pack_request() 2020-06-10 18:06:34 -07:00
http.c strvec: fix indentation in renamed calls 2020-07-28 15:02:18 -07:00
http.h Merge branch 'jt/cdn-offload' 2020-06-25 12:27:47 -07:00
ident.c Merge branch 'pw/rebase-i-more-options' 2020-09-03 12:37:01 -07:00
imap-send.c imap-send: parse default git config 2020-12-01 11:10:59 -08:00
iterator.h
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json-writer.c
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json-writer.h
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khash.h
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kwset.c
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kwset.h kset.h, tar.h: add missing header guard to prevent multiple inclusion 2019-11-07 20:12:04 +09:00
levenshtein.c
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levenshtein.h
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line-log.c line-log: handle deref_tag() returning NULL 2020-10-12 12:25:14 -07:00
line-log.h line-log: more responsive, incremental 'git log -L' 2020-05-11 09:33:56 -07:00
line-range.c
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line-range.h
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linear-assignment.c
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linear-assignment.h
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list-objects-filter-options.c list-objects-filter-options: fix function name in BUG 2020-11-16 14:28:25 -08:00
list-objects-filter-options.h list_objects_filter_options: introduce 'list_object_filter_config_name' 2020-08-03 18:03:24 -07:00
list-objects-filter.c object-name.c: rename from sha1-name.c 2021-01-04 13:01:55 -08:00
list-objects-filter.h
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list-objects.c Merge branch 'jk/list-objects-optim-wo-trees' 2019-10-07 11:32:56 +09:00
list-objects.h
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list.h
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ll-merge.c parse_config_key(): return subsection len as size_t 2020-04-10 14:44:29 -07:00
ll-merge.h merge: move doc to ll-merge.h 2019-11-18 15:21:28 +09:00
lockfile.c lockfile.c: introduce 'hold_lock_file_for_update_mode' 2020-04-27 11:27:36 -07:00
lockfile.h lockfile.c: introduce 'hold_lock_file_for_update_mode' 2020-04-27 11:27:36 -07:00
log-tree.c Merge branch 'js/range-diff-one-side-only' 2021-02-17 17:21:41 -08:00
log-tree.h format-patch: make output filename configurable 2020-11-09 17:44:41 -08:00
ls-refs.c Merge branch 'jt/clone-unborn-head' 2021-02-17 17:21:40 -08:00
ls-refs.h ls-refs: report unborn targets of symrefs 2021-02-05 13:49:53 -08:00
mailinfo.c mailinfo: disallow NUL character in mail's header 2020-04-22 14:01:03 -07:00
mailinfo.h
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mailmap.c mailmap: only look for .mailmap in work tree 2021-02-10 13:34:51 -08:00
mailmap.h shortlog: remove unused(?) "repo-abbrev" feature 2021-01-12 14:04:42 -08:00
match-trees.c
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mem-pool.c mem-pool: use consistent pool variable name 2020-08-18 12:16:08 -07:00
mem-pool.h mem-pool: use consistent pool variable name 2020-08-18 12:16:08 -07:00
merge-blobs.c
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merge-blobs.h
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merge-ort-wrappers.c merge-ort-wrappers: new convience wrappers to mimic the old merge API 2020-10-26 22:36:14 -07:00
merge-ort-wrappers.h merge-ort-wrappers: new convience wrappers to mimic the old merge API 2020-10-26 22:36:14 -07:00
merge-ort.c Merge branch 'en/ort-directory-rename' 2021-02-11 13:58:43 -08:00
merge-ort.h merge-ort: implement merge_incore_recursive() 2020-12-16 21:56:39 -08:00
merge-recursive.c commit: move reverse_commit_list() from merge-recursive 2020-12-16 21:56:39 -08:00
merge-recursive.h merge-recursive: fix unclear and outright wrong comments 2020-08-02 11:03:57 -07:00
merge.c dir: fix problematic API to avoid memory leaks 2020-08-18 17:17:31 -07:00
mergesort.c
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mergesort.h
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midx.c Merge branch 'ma/more-opaque-lock-file' 2021-01-25 14:19:17 -08:00
midx.h Merge branch 'ds/multi-pack-index' 2020-05-01 13:39:55 -07:00
name-hash.c name-hash: use trace2 regions for init 2021-01-23 17:14:07 -08:00
notes-cache.c
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notes-cache.h
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notes-merge.c
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notes-merge.h
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notes-utils.c strbuf: add and use strbuf_insertstr() 2020-02-10 09:04:45 -08:00
notes-utils.h
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notes.c Merge branch 'na/notes-displayref-is-not-boolean' 2020-11-30 14:49:44 -08:00
notes.h Merge branch 'dl/format-patch-notes-config-fixup' 2019-12-25 11:21:58 -08:00
object-file.c hash-lookup: rename from sha1-lookup 2021-01-04 13:01:55 -08:00
object-name.c object-name.c: rename from sha1-name.c 2021-01-04 13:01:55 -08:00
object-store.h packfile: add kept-pack cache for find_kept_pack_entry() 2021-02-22 23:30:52 -08:00
object.c bundle: lost objects when removing duplicate pendings 2021-01-11 21:50:41 -08:00
object.h object: allow clear_commit_marks_all to handle any repo 2020-10-31 10:46:34 -07:00
oid-array.c oid_pos(): access table through const pointers 2021-01-28 12:03:26 -08:00
oid-array.h oid-array: provide a for-loop iterator 2020-12-07 12:32:04 -08:00
oidmap.c hashmap: provide deallocation function names 2020-11-02 12:15:50 -08:00
oidmap.h hashmap: use *_entry APIs for iteration 2019-10-07 10:20:11 +09:00
oidset.c blame: silently ignore invalid ignore file objects 2020-11-10 13:05:06 -08:00
oidset.h blame: validate and peel the object names on the ignore list 2020-09-24 22:20:58 -07:00
pack-bitmap-write.c oid_pos(): access table through const pointers 2021-01-28 12:03:26 -08:00
pack-bitmap.c rebuild_existing_bitmaps(): convert to new revindex API 2021-01-13 21:53:46 -08:00
pack-bitmap.h pack-bitmap: factor out 'bitmap_for_commit()' 2020-12-08 14:49:04 -08:00
pack-check.c fsck: correctly compute checksums on idx files larger than 4GB 2020-11-16 13:41:35 -08:00
pack-objects.c pack-objects: convert oe_set_delta_ext() to use object_id 2020-02-24 12:55:52 -08:00
pack-objects.h pack-objects: convert oe_set_delta_ext() to use object_id 2020-02-24 12:55:52 -08:00
pack-revindex.c pack-revindex: ensure that on-disk reverse indexes are given precedence 2021-01-25 18:32:44 -08:00
pack-revindex.h pack-revindex: ensure that on-disk reverse indexes are given precedence 2021-01-25 18:32:44 -08:00
pack-write.c pack-write.c: prepare to write 'pack-*.rev' files 2021-01-25 18:32:43 -08:00
pack.h pack-write.c: prepare to write 'pack-*.rev' files 2021-01-25 18:32:43 -08:00
packfile.c packfile: add kept-pack cache for find_kept_pack_entry() 2021-02-22 23:30:52 -08:00
packfile.h packfile: introduce 'find_kept_pack_entry()' 2021-02-22 23:30:52 -08:00
pager.c strvec: convert remaining callers away from argv_array name 2020-07-28 15:02:18 -07:00
parse-options-cb.c assert PARSE_OPT_NONEG in parse-options callbacks 2020-09-30 12:53:47 -07:00
parse-options.c MacOS: precompose_argv_prefix() 2021-02-03 14:09:37 -08:00
parse-options.h parse-options: format argh like error messages 2021-01-06 15:10:27 -08:00
patch-delta.c
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patch-ids.c Merge branch 'jk/log-cherry-pick-duplicate-patches' into maint 2021-02-05 16:31:28 -08:00
patch-ids.h patch-ids: handle duplicate hashmap entries 2021-01-12 11:13:32 -08:00
path.c sequencer: treat REVERT_HEAD as a pseudo ref 2020-08-21 11:20:11 -07:00
path.h sequencer: treat REVERT_HEAD as a pseudo ref 2020-08-21 11:20:11 -07:00
pathspec.c strvec: rename struct fields 2020-07-30 19:18:06 -07:00
pathspec.h Merge branch 'hw/doc-in-header' 2019-12-16 13:08:39 -08:00
pkt-line.c sideband: diagnose more sideband anomalies 2020-10-29 09:23:29 -07:00
pkt-line.h Merge branch 'bc/sha-256-part-2' 2020-07-06 22:09:13 -07:00
preload-index.c
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pretty.c pretty: lazy-load commit data when expanding user-format 2021-01-28 14:07:35 -08:00
pretty.h pretty: refactor `format_sanitized_subject()` 2020-08-28 13:52:51 -07:00
prio-queue.c
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prio-queue.h
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progress.c Merge branch 'ma/stop-progress-null-fix' 2020-08-17 17:02:48 -07:00
progress.h progress.c: silence cgcc suggestion about internal linkage 2020-04-27 11:21:28 -07:00
promisor-remote.c promisor-remote: remove unused variable 2020-09-21 22:32:49 -07:00
promisor-remote.h promisor-remote: remove unused variable 2020-09-21 22:32:49 -07:00
prompt.c interactive: explicitly `fflush` stdout before expecting input 2020-04-10 10:27:16 -07:00
prompt.h interactive: refactor code asking the user for interactive input 2020-04-10 10:26:31 -07:00
protocol.c protocol: re-enable v2 protocol by default 2020-09-25 11:40:42 -07:00
protocol.h
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prune-packed.c Lib-ify prune-packed 2020-03-24 15:04:44 -07:00
prune-packed.h Lib-ify prune-packed 2020-03-24 15:04:44 -07:00
quote.c quote: make sq_dequote_step() a public function 2021-01-12 12:03:18 -08:00
quote.h quote: make sq_dequote_step() a public function 2021-01-12 12:03:18 -08:00
range-diff.c Merge branch 'js/range-diff-one-side-only' 2021-02-17 17:21:41 -08:00
range-diff.h Merge branch 'js/range-diff-one-side-only' 2021-02-17 17:21:41 -08:00
reachable.c pack-bitmap: basic noop bitmap filter infrastructure 2020-02-14 10:46:22 -08:00
reachable.h
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read-cache.c read-cache: try not to peek into `struct {lock_,temp}file` 2021-01-06 13:53:32 -08:00
rebase-interactive.c Merge branch 'rt/format-zero-length-fix' 2020-03-09 11:21:21 -07:00
rebase-interactive.h Merge branch 'en/rebase-backend' 2020-03-02 15:07:19 -08:00
rebase.c pull --rebase/remote rename: document and honor single-letter abbreviations rebase types 2020-02-10 10:52:10 -08:00
rebase.h pull --rebase/remote rename: document and honor single-letter abbreviations rebase types 2020-02-10 10:52:10 -08:00
ref-filter.c Merge branch 'tb/ls-refs-optim' 2021-02-05 16:40:45 -08:00
ref-filter.h branch: sort detached HEAD based on a flag 2021-01-07 15:13:21 -08:00
reflog-walk.c
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reflog-walk.h
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refs.c Merge branch 'tb/ls-refs-optim' 2021-02-05 16:40:45 -08:00
refs.h Merge branch 'tb/ls-refs-optim' 2021-02-05 16:40:45 -08:00
refspec.c Merge branch 'fc/atmark-in-refspec' 2020-12-14 10:21:36 -08:00
refspec.h Merge branch 'sb/clone-origin' 2020-10-27 15:09:50 -07:00
remote-curl.c push: parse and set flag for "--force-if-includes" 2020-10-03 09:59:19 -07:00
remote.c Merge branch 'nk/refspecs-negative-fix' 2020-12-23 13:59:46 -08:00
remote.h Merge branch 'jt/clone-unborn-head' 2021-02-17 17:21:40 -08:00
replace-object.c replace-object: make replace operations thread-safe 2020-01-17 13:52:14 -08:00
replace-object.h replace-object: make replace operations thread-safe 2020-01-17 13:52:14 -08:00
repo-settings.c Merge branch 'ds/maintenance-part-2' 2020-10-27 15:09:47 -07:00
repository.c repository: add repo reference to index_state 2021-01-23 17:14:07 -08:00
repository.h Merge branch 'ds/maintenance-part-2' 2020-10-27 15:09:47 -07:00
rerere.c rerere: use strmap to store rerere directories 2021-01-28 11:26:20 -08:00
rerere.h
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reset.c Merge branch 'dl/merge-autostash' 2020-04-29 16:15:27 -07:00
reset.h reset: extract reset_head() from rebase 2020-04-10 09:28:02 -07:00
resolve-undo.c
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resolve-undo.h
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revision.c revision: learn '--no-kept-objects' 2021-02-22 23:30:52 -08:00
revision.h revision: learn '--no-kept-objects' 2021-02-22 23:30:52 -08:00
run-command.c maintenance: optionally skip --auto process 2020-09-25 10:59:44 -07:00
run-command.h run-command: document use_shell option 2021-01-22 14:21:32 -08:00
send-pack.c Merge branch 'js/trace2-session-id' 2020-12-08 15:11:20 -08:00
send-pack.h
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sequencer.c Merge branch 'ds/more-index-cleanups' 2021-02-10 14:48:33 -08:00
sequencer.h Merge branch 'en/merge-ort-api-null-impl' 2020-11-18 13:32:53 -08:00
serve.c ls-refs: report unborn targets of symrefs 2021-02-05 13:49:53 -08:00
serve.h argv-array: rename to strvec 2020-07-28 15:02:17 -07:00
server-info.c Fix spelling errors in code comments 2019-11-10 16:00:54 +09:00
setup.c Merge branch 'bc/sha-256-part-3' 2020-08-11 18:04:11 -07:00
sh-i18n--envsubst.c
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sha1dc_git.c hex: drop sha1_to_hex() 2019-11-13 10:09:10 +09:00
sha1dc_git.h
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shallow.c commit_graft_pos(): take an oid instead of a bare hash 2021-01-28 11:21:07 -08:00
shallow.h shallow: use struct 'shallow_lock' for additional safety 2020-04-30 14:19:13 -07:00
shell.c interactive: refactor code asking the user for interactive input 2020-04-10 10:26:31 -07:00
shortlog.h shortlog: remove unused(?) "repo-abbrev" feature 2021-01-12 14:04:42 -08:00
sideband.c Merge branch 'jk/sideband-more-error-checking' 2020-11-09 14:06:29 -08:00
sideband.h sideband: diagnose more sideband anomalies 2020-10-29 09:23:29 -07:00
sigchain.c
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sigchain.h sigchain: move doc to sigchain.h 2019-11-18 15:21:29 +09:00
split-index.c mem-pool: use more standard initialization and finalization 2020-08-18 12:16:06 -07:00
split-index.h
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stable-qsort.c
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strbuf.c Merge branch 'rs/retire-strbuf-write-fd' 2020-06-29 14:17:26 -07:00
strbuf.h Merge branch 'rs/retire-strbuf-write-fd' 2020-06-29 14:17:26 -07:00
streaming.c streaming: allow open_istream() to handle any repo 2020-01-31 10:45:39 -08:00
streaming.h streaming: allow open_istream() to handle any repo 2020-01-31 10:45:39 -08:00
string-list.c
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string-list.h Merge branch 'en/string-list-can-be-custom-sorted' into maint 2020-02-14 12:42:27 -08:00
strmap.c strmap: take advantage of FLEXPTR_ALLOC_STR when relevant 2020-11-11 12:55:27 -08:00
strmap.h strmap: make callers of strmap_remove() to call it in void context 2020-12-15 15:30:44 -08:00
strvec.c strvec: rename struct fields 2020-07-30 19:18:06 -07:00
strvec.h strvec: rename struct fields 2020-07-30 19:18:06 -07:00
sub-process.c strvec: convert remaining callers away from argv_array name 2020-07-28 15:02:18 -07:00
sub-process.h hashmap_entry: remove first member requirement from docs 2019-10-07 10:20:12 +09:00
submodule-config.c hashmap: provide deallocation function names 2020-11-02 12:15:50 -08:00
submodule-config.h submodule-config: add skip_if_read option to repo_read_gitmodules() 2020-01-17 13:52:14 -08:00
submodule.c Merge branch 'sj/untracked-files-in-submodule-directory-is-not-dirty' 2021-01-25 14:19:18 -08:00
submodule.h submodule: rename helper functions to avoid ambiguity 2020-08-12 14:12:58 -07:00
symlinks.c
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tag.c object: drop parsed_object_pool->commit_count 2020-06-17 14:37:14 -07:00
tag.h
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tar.h kset.h, tar.h: add missing header guard to prevent multiple inclusion 2019-11-07 20:12:04 +09:00
tempfile.c tempfile.c: introduce 'create_tempfile_mode' 2020-04-27 11:27:35 -07:00
tempfile.h tempfile.c: introduce 'create_tempfile_mode' 2020-04-27 11:27:35 -07:00
thread-utils.c
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thread-utils.h
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tmp-objdir.c packfile: prepare for the existence of '*.rev' files 2021-01-25 18:32:43 -08:00
tmp-objdir.h
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trace.c http, imap-send: stop using CURLOPT_VERBOSE 2020-05-11 11:18:01 -07:00
trace.h http, imap-send: stop using CURLOPT_VERBOSE 2020-05-11 11:18:01 -07:00
trace2.c trace2: add a public function for getting the SID 2020-11-11 18:26:52 -08:00
trace2.h trace2: add a public function for getting the SID 2020-11-11 18:26:52 -08:00
trailer.c pretty format %(trailers): add a "key_value_separator" 2020-12-09 14:16:42 -08:00
trailer.h pretty format %(trailers): add a "key_value_separator" 2020-12-09 14:16:42 -08:00
transport-helper.c connect, transport: encapsulate arg in struct 2021-02-05 13:49:54 -08:00
transport-internal.h connect, transport: encapsulate arg in struct 2021-02-05 13:49:54 -08:00
transport.c connect, transport: encapsulate arg in struct 2021-02-05 13:49:54 -08:00
transport.h clone: respect remote unborn HEAD 2021-02-05 13:49:55 -08:00
tree-diff.c bloom/diff: properly short-circuit on max_changes 2020-09-17 09:31:25 -07:00
tree-walk.c tree-walk: report recursion counts 2021-01-04 15:23:08 -08:00
tree-walk.h tree-walk.c: break circular dependency with unpack-trees 2020-02-04 10:32:15 -08:00
tree.c tree: enable cmp_cache_name_compare() to be used elsewhere 2020-12-13 14:18:20 -08:00
tree.h tree: enable cmp_cache_name_compare() to be used elsewhere 2020-12-13 14:18:20 -08:00
unicode-width.h unicode: update the width tables to Unicode 13.0 2020-03-17 15:06:37 -07:00
unimplemented.sh
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unix-socket.c
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unix-socket.h
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unpack-trees.c sparse-checkout: load sparse-checkout patterns 2021-01-23 17:14:07 -08:00
unpack-trees.h strvec: convert remaining callers away from argv_array name 2020-07-28 15:02:18 -07:00
upload-pack.c Merge branch 'ak/corrected-commit-date' 2021-02-17 17:21:40 -08:00
upload-pack.h argv-array: rename to strvec 2020-07-28 15:02:17 -07:00
url.c Fix spelling errors in code comments 2019-11-10 16:00:54 +09:00
url.h
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urlmatch.c credential: handle `credential.<partial-URL>.<key>` again 2020-04-24 15:53:46 -07:00
urlmatch.h credential: handle `credential.<partial-URL>.<key>` again 2020-04-24 15:53:46 -07:00
usage.c usage: trace2 BUG() invocations 2021-02-09 14:14:34 -08:00
userdiff.c Merge branch 've/userdiff-bash' 2020-11-02 13:17:46 -08:00
userdiff.h
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utf8.c utf8: use skip_iprefix() in same_utf_encoding() 2019-11-10 16:04:36 +09:00
utf8.h
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varint.c
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varint.h
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version.c
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version.h
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versioncmp.c
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walker.c Merge branch 'rs/show-progress-in-dumb-http-fetch' 2020-03-09 11:21:21 -07:00
walker.h remote-curl: show progress for fetches over dumb HTTP 2020-03-03 13:15:40 -08:00
wildmatch.c
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wildmatch.h
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worktree.c worktree: teach worktree_lock_reason() to gently handle main worktree 2021-01-30 09:57:20 -08:00
worktree.h worktree: teach worktree to lazy-load "prunable" reason 2021-01-30 09:57:16 -08:00
wrap-for-bin.sh
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wrapper.c xrealloc: do not reuse pointer freed by zero-length realloc() 2020-09-02 12:18:14 -07:00
write-or-die.c
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ws.c
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wt-status.c Merge branch 'sj/untracked-files-in-submodule-directory-is-not-dirty' 2021-01-25 14:19:18 -08:00
wt-status.h branch: sort detached HEAD based on a flag 2021-01-07 15:13:21 -08:00
xdiff-interface.c xdiff: avoid computing non-zero offset from NULL pointer 2020-01-28 23:13:25 -08:00
xdiff-interface.h Fix spelling errors in code comments 2019-11-10 16:00:54 +09:00
zlib.c
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README.md

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). 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