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Jeff King ec6915265a ci: run ASan/UBSan in a single job 
When we started running sanitizers in CI via 1c0962c0c4 (ci: add address
and undefined sanitizer tasks, 2022-10-20), we ran them as two separate
CI jobs, since as that commit notes, the combination "seems to take
forever".

And indeed, it does with gcc. However, since the previous commit
switched to using clang, the situation is different, and we can save
some CPU by using a single job for both. Comparing before/after CI runs,
this saved about 14 minutes (the single combined job took 54m, versus
44m plus 24m for ASan and UBSan jobs, respectively). That's wall-clock
and not CPU, but since our jobs are mostly CPU-bound, the two should be
closely proportional.

This does increase the end-to-end time of a CI run, though, since before
this patch the two jobs could run in parallel, and the sanitizer job is
our longest single job. It also means that we won't get a separate
result for "this passed with UBSan but not with ASan" or vice versa).
But as 1c0962c0c4 noted, that is not a very useful signal in practice.

Below are some more detailed timings of gcc vs clang that I measured by
running the test suite on my local workstation. Each measurement counts
only the time to run the test suite with each compiler (not the compile
time itself). We'll focus on the wall-clock times for simplicity, though
the CPU times follow roughly similar trends.

Here's a run with CC=gcc as a baseline:

  real	1m12.931s
  user	9m30.566s
  sys	8m9.538s

Running with SANITIZE=address increases the time by a factor of ~4.7x:

  real	5m40.352s
  user	49m37.044s
  sys	36m42.950s

Running with SANITIZE=undefined increases the time by a factor of ~1.7x:

  real	2m5.956s
  user	12m42.847s
  sys	19m27.067s

So let's call that 6.4 time units to run them separately (where a unit
is the time it takes to run the test suite with no sanitizers). As a
simplistic model, we might imagine that running them together would take
5.4 units (we save 1 unit because we are no longer running the test
suite twice, but just paying the sanitizer overhead on top of a single
run).

But that's not what happens. Running with SANITIZE=address,undefined
results in a factor of 9.3x:

  real	11m9.817s
  user	77m31.284s
  sys	96m40.454s

So not only did we not get faster when doing them together, we actually
spent 1.5x as much CPU as doing them separately! And while those
wall-clock numbers might not look too terrible, keep in mind that this
is on an unloaded 8-core machine. In the CI environment, wall-clock
times will be much closer to CPU times. So not only are we wasting CPU,
but we risk hitting timeouts.

Now let's try the same thing with clang. Here's our no-sanitizer
baseline run, which is almost identical to the gcc one (which is quite
convenient, because we can keep using the same "time units" to get an
apples-to-apples comparison):

  real	1m11.844s
  user	9m28.313s
  sys	8m8.240s

And now again with SANITIZE=address, we get a 5x factor (so slightly
worse than gcc's 4.7x, though I wouldn't read too much into it; there is
a fair bit of run-to-run noise):

  real	6m7.662s
  user	49m24.330s
  sys	44m13.846s

And with SANITIZE=undefined, we are at 1.5x, slightly outperforming gcc
(though again, that's probably mostly noise):

  real	1m50.028s
  user	11m0.973s
  sys	16m42.731s

So running them separately, our total cost is 6.5x. But if we combine
them in a single run (SANITIZE=address,undefined), we get:

  real	6m51.804s
  user	52m32.049s
  sys	51m46.711s

which is a factor of 5.7x. That's along the lines we'd hoped for!
Running them together saves us almost a whole time unit. And that's not
counting any time spent outside the test suite itself (starting the job,
setting up the environment, compiling) that we're no longer duplicating
by having two jobs.

So clang behaves like we'd hope: the overhead to run the sanitizers is
additive as you add more sanitizers. Whereas gcc's numbers seem very
close to multiplicative, almost as if the sanitizers were enforcing
their overheads on each other (though that is purely a guess on what is
going on; ultimately what matters to us is the amount of time it takes).

And that roughly matches the CI improvement I saw. A "time unit" there
is more like 12 minutes, and the observed time savings was 14 minutes
(with the extra presumably coming from avoiding duplicated setup, etc).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-06-03 10:35:13 +09:00
.github ci: run ASan/UBSan in a single job 2023-06-03 10:35:13 +09:00
block-sha1 Makefile + hash.h: remove PPC_SHA1 implementation 2022-08-31 14:37:31 -07:00
builtin Sync with 2.32.7 2023-04-17 21:15:52 +02:00
ci ci: run ASan/UBSan in a single job 2023-06-03 10:35:13 +09:00
compat Sync with 2.34.8 2023-04-17 21:15:59 +02:00
contrib cocci & cache.h: remove "USE_THE_INDEX_COMPATIBILITY_MACROS" 2023-02-10 11:38:40 -08:00
Documentation Git 2.40.1 2023-04-17 21:16:10 +02:00
ewah Merge branch 'ep/maint-equals-null-cocci' 2022-05-20 15:26:59 -07:00
git-gui Makefiles: change search through $(MAKEFLAGS) for GNU make 4.4 2022-12-01 07:24:12 +09:00
gitk-git Merge branch 'master' of git://git.ozlabs.org/~paulus/gitk 2022-05-11 08:25:02 -07:00
gitweb Merge branch 'jr/gitweb-title-shortening' 2022-08-05 15:52:14 -07:00
mergetools mergetools: vimdiff: simplify tabfirst 2022-08-10 12:39:39 -07:00
negotiator negotiator/skipping: avoid stack overflow 2022-10-25 17:14:40 -07:00
oss-fuzz Merge branch 'ac/fuzzers' 2022-10-07 17:19:59 -07:00
perl Git.pm: trust rev-parse to find bare repositories 2022-10-22 16:39:48 -07:00
po Merge branch 'fz/po-zh_CN' of github.com:fangyi-zhou/git-po 2023-03-10 22:50:14 +08:00
refs Merge branch 'ps/fsync-refs-fix' into maint-2.39 2023-02-14 14:15:50 -08:00
reftable reftable: use a pointer for pq_entry param 2022-09-15 11:32:37 -07:00
sha1collisiondetection@855827c583
sha1dc
sha256 sha256: add support for Nettle 2022-07-10 14:43:34 -07:00
t Sync with 2.39.3 2023-04-17 21:16:10 +02:00
templates fsmonitor: query watchman with right valid json 2022-06-07 10:00:49 -07:00
trace2 trace2: add global counter mechanism 2022-10-24 12:45:26 -07:00
xdiff xdiff: mark unused parameter in xdl_call_hunk_func() 2022-12-13 22:16:23 +09:00
.cirrus.yml ci: update Cirrus-CI image to FreeBSD 12.3 2022-05-25 08:47:11 -07:00
.clang-format
.editorconfig
.gitattributes .gitattributes: include text attribute for eol attributes 2023-02-06 13:57:08 -08:00
.gitignore add: remove "add.interactive.useBuiltin" & Perl "git add--interactive" 2023-02-06 15:03:34 -08:00
.gitmodules
.mailmap mailmap: update email address of Matheus Tavares 2022-12-10 09:17:36 +09:00
.tsan-suppressions
abspath.c
aclocal.m4
add-interactive.c diff: mark unused parameters in callbacks 2022-12-13 22:16:23 +09:00
add-interactive.h
add-patch.c read-cache API & users: make discard_index() return void 2022-11-21 12:06:15 +09:00
advice.c advice.h: add advise_on_moving_dirty_path() 2022-08-10 13:57:50 -07:00
advice.h advice.h: add advise_on_moving_dirty_path() 2022-08-10 13:57:50 -07:00
alias.c alias.c: reject too-long cmdline strings in split_cmdline() 2022-10-01 00:23:38 -04:00
alias.h
alloc.c alloc.[ch]: remove alloc_report() function 2022-04-01 10:16:11 -07:00
alloc.h alloc.[ch]: remove alloc_report() function 2022-04-01 10:16:11 -07:00
apply.c Sync with 2.39.3 2023-04-17 21:16:10 +02:00
apply.h range-diff: plug memory leak in common invocation 2022-03-04 13:24:19 -08:00
archive-tar.c archive-tar: report filter start error only once 2022-10-30 19:50:43 -04:00
archive-zip.c git-compat-util.h: use "UNUSED", not "UNUSED(var)" 2022-09-01 10:49:48 -07:00
archive.c Merge branch 'rs/archive-mtime' 2023-02-27 10:08:57 -08:00
archive.h archive: add --mtime 2023-02-18 09:29:13 -08:00
attr.c Merge branch 'kn/attr-from-tree' 2023-01-23 13:39:51 -08:00
attr.h attr: fix instructions on how to check attrs 2023-01-26 14:16:48 -08:00
banned.h C99: remove hardcoded-out !HAVE_VARIADIC_MACROS code 2022-02-21 19:14:19 -08:00
base85.c
bisect.c bisect: no longer try to clean up left-over .git/head-name files 2023-01-13 14:17:14 -08:00
bisect.h bisect: output state before we are ready to compute bisection 2022-05-11 12:35:11 -07:00
blame.c Merge branch 'rs/mergesort' 2022-08-03 13:36:09 -07:00
blame.h
blob.c blob: drop unused parts of parse_blob_buffer() 2022-12-13 22:16:22 +09:00
blob.h blob: drop unused parts of parse_blob_buffer() 2022-12-13 22:16:22 +09:00
bloom.c git-compat-util.h: use "UNUSED", not "UNUSED(var)" 2022-09-01 10:49:48 -07:00
bloom.h
branch.c branch: improve advice when --recurse-submodules fails 2023-01-18 15:13:21 -08:00
branch.h Merge branch 'ds/branch-checked-out' into ds/rebase-update-ref 2022-07-12 08:38:42 -07:00
builtin.h read-tree: add "--super-prefix" option, eliminate global 2022-12-26 10:21:44 +09:00
bulk-checkin.c t5351: avoid relying on core.fsyncMethod = batch to be supported 2022-07-29 09:08:57 -07:00
bulk-checkin.h core.fsyncmethod: batched disk flushes for loose-objects 2022-04-06 13:13:01 -07:00
bundle-uri.c Merge branch 'ds/bundle-uri-5' 2023-02-15 17:11:52 -08:00
bundle-uri.h clone: set fetch.bundleURI if appropriate 2023-01-31 08:57:48 -08:00
bundle.c Merge branch 'ab/various-leak-fixes' 2023-02-22 14:55:45 -08:00
bundle.h Merge branch 'ds/bundle-uri-3' 2022-10-30 21:04:44 -04:00
cache-tree.c Merge branch 'rs/cache-tree-strbuf-growth-fix' 2023-02-22 14:55:44 -08:00
cache-tree.h cache-tree API: remove redundant update_main_cache_tree() 2023-02-10 11:38:14 -08:00
cache.h Merge branch 'ab/the-index-compatibility' 2023-02-22 14:55:44 -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
checkout.h
chunk-format.c chunk-format.h: extract oid_version() 2022-05-26 15:48:26 -07:00
chunk-format.h chunk-format.h: extract oid_version() 2022-05-26 15:48:26 -07:00
CODE_OF_CONDUCT.md CODE_OF_CONDUCT.md: update PLC members list 2022-02-18 12:36:29 -08:00
color.c git-compat-util.h: use "UNUSED", not "UNUSED(var)" 2022-09-01 10:49:48 -07:00
color.h color: allow colors to be prefixed with "reset" 2021-10-28 09:37:18 -07:00
column.c utf8: fix truncated string lengths in utf8_strnwidth() 2022-12-09 14:26:21 +09:00
column.h
combine-diff.c diff: mark unused parameters in callbacks 2022-12-13 22:16:23 +09:00
command-list.txt version: fix builtin linking & documentation 2022-09-19 17:28:25 -07:00
commit-graph.c use DUP_ARRAY 2023-01-09 13:28:36 +09:00
commit-graph.h Merge branch 'tb/commit-graph-genv2-upgrade-fix' 2022-08-03 13:36:08 -07:00
commit-reach.c use DUP_ARRAY 2023-01-09 13:28:36 +09:00
commit-reach.h
commit-slab-decl.h
commit-slab-impl.h
commit-slab.h
commit.c Merge branch 'rs/clear-commit-marks-cleanup' into maint-2.39 2023-02-14 14:15:56 -08:00
commit.h add API: remove run_add_interactive() wrapper function 2023-02-06 15:03:34 -08:00
common-main.c grep: fix multibyte regex handling under macOS 2022-08-26 11:45:52 -07:00
config.c Sync with 2.39.3 2023-04-17 21:16:10 +02:00
config.h config.h: remove unused git_configset_add_parameters() 2023-02-07 10:50:27 -08:00
config.mak.dev config.mak.dev: disable suggest braces error on old clang versions 2022-10-10 11:15:31 -07:00
config.mak.in
config.mak.uname Merge branch 'hj/remove-msys-support' 2023-02-09 14:40:47 -08:00
configure.ac Makefile + hash.h: remove PPC_SHA1 implementation 2022-08-31 14:37:31 -07:00
connect.c Merge branch 'ds/bundle-uri-4' 2023-01-02 21:37:18 +09:00
connect.h server_supports_v2(): use a separate function for die_on_error 2022-12-13 22:08:52 +09:00
connected.c Merge branch 'ab/various-leak-fixes' 2022-12-14 15:55:46 +09:00
connected.h receive-pack: only use visible refs for connectivity check 2022-11-17 16:22:52 -05:00
convert.c attr: add flag --source to work with tree-ish 2023-01-14 08:49:55 -08:00
convert.h checkout: fix two bugs on the final count of updated entries 2022-07-14 10:19:28 -07:00
copy.c
COPYING
credential.c credential: new attribute password_expiry_utc 2023-02-22 15:18:58 -08:00
credential.h credential: new attribute password_expiry_utc 2023-02-22 15:18:58 -08:00
csum-file.c hashfile: allow skipping the hash function 2023-01-07 07:46:14 +09:00
csum-file.h hashfile: allow skipping the hash function 2023-01-07 07:46:14 +09:00
ctype.c
daemon.c daemon: clarify directory arguments 2022-07-19 12:45:31 -07:00
date.c date.c: allow ISO 8601 reduced precision times 2023-01-13 11:49:04 -08:00
date.h date API: add and use a date_mode_release() 2022-02-16 09:40:00 -08:00
decorate.c
decorate.h
delta-islands.c delta-islands: fix segfault when freeing island marks 2023-02-21 09:15:04 -08:00
delta-islands.h delta-islands: free island_marks and bitmaps 2023-02-03 18:01:46 -08:00
delta.h odb: guard against data loss checking out a huge file 2021-11-03 11:22:27 -07:00
detect-compiler detect-compiler: make detection independent of locale 2022-05-09 08:52:26 -07:00
diagnose.c diagnose.c: refactor to safely use 'd_type' 2022-09-19 10:25:01 -07:00
diagnose.h builtin/diagnose.c: add '--mode' option 2022-08-12 13:20:02 -07:00
diff-delta.c
diff-lib.c diff: mark unused parameters in callbacks 2022-12-13 22:16:23 +09:00
diff-merges.c diff-merges: cleanup set_diff_merges() 2022-09-16 09:21:43 -07:00
diff-merges.h
diff-no-index.c diff: factor out add_diff_options() 2022-12-02 08:25:29 +09:00
diff.c Merge branch 'jc/diff-algo-attribute' 2023-02-27 10:08:56 -08:00
diff.h Merge branch 'jc/diff-algo-attribute' 2023-02-27 10:08:56 -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-pickaxe: mark unused parameters in pickaxe functions 2022-10-17 21:24:04 -07:00
diffcore-rename.c object-file API: have hash_object_file() take "enum object_type" 2022-02-25 17:16:32 -08:00
diffcore-rotate.c
diffcore.h line-log: free diff queue when processing non-merge commits 2022-11-02 20:16:34 -04:00
dir-iterator.c dir-iterator: drop unused DIR_ITERATOR_FOLLOW_SYMLINKS 2023-02-16 16:21:56 -08:00
dir-iterator.h dir-iterator: drop unused DIR_ITERATOR_FOLLOW_SYMLINKS 2023-02-16 16:21:56 -08:00
dir.c Sync with 2.34.8 2023-04-17 21:15:59 +02:00
dir.h dir.c: free "ident" and "exclude_per_dir" in "struct untracked_cache" 2022-11-21 12:32:48 +09:00
editor.c run-command API: rename "env_array" to "env" 2022-06-02 14:31:16 -07:00
entry.c read-tree: add "--super-prefix" option, eliminate global 2022-12-26 10:21:44 +09:00
entry.h read-tree: add "--super-prefix" option, eliminate global 2022-12-26 10:21:44 +09:00
environment.c read-tree: add "--super-prefix" option, eliminate global 2022-12-26 10:21:44 +09:00
environment.h
exec-cmd.c mark unused parameters in trivial compat functions 2022-10-17 21:24:03 -07:00
exec-cmd.h
fetch-negotiator.c fetch-negotiator: add specific noop initializer 2022-03-28 10:25:52 -07:00
fetch-negotiator.h fetch-negotiator: add specific noop initializer 2022-03-28 10:25:52 -07:00
fetch-pack.c server_supports_v2(): use a separate function for die_on_error 2022-12-13 22:08:52 +09:00
fetch-pack.h fetch-pack: add refetch 2022-03-28 10:25:52 -07:00
fmt-merge-msg.c revisions API users: add straightforward release_revisions() 2022-04-13 23:56:08 -07:00
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: do not assume NUL-termination of buffers 2023-01-19 15:39:43 -08:00
fsck.h fsck: provide a function to fsck buffer without object struct 2023-01-18 12:59:44 -08:00
fsmonitor--daemon.h fsmonitor: deal with synthetic firmlinks on macOS 2022-10-05 11:05:23 -07:00
fsmonitor-ipc.c replace and remove run_command_v_opt_tr2() 2022-10-30 14:04:48 -04:00
fsmonitor-ipc.h fsmonitor: relocate socket file if .git directory is remote 2022-10-05 11:05:22 -07:00
fsmonitor-path-utils.h fsmonitor: deal with synthetic firmlinks on macOS 2022-10-05 11:05:23 -07:00
fsmonitor-settings.c treewide: always have a valid "index_state.repo" member 2023-01-17 14:32:06 -08:00
fsmonitor-settings.h fsmonitor: check for compatability before communicating with fsmonitor 2022-10-05 11:05:23 -07:00
fsmonitor.c treewide: always have a valid "index_state.repo" member 2023-01-17 14:32:06 -08:00
fsmonitor.h fsmonitor: never set CE_FSMONITOR_VALID on submodules 2022-05-26 15:59:27 -07:00
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 Sync with 2.38.5 2023-04-17 21:16:08 +02:00
gettext.h Sync with 2.33.8 2023-04-17 21:15:56 +02:00
git-archimport.perl
git-compat-util.h Merge branch 'rs/use-enhanced-bre-on-macos' into maint-2.39 2023-02-14 14:15:49 -08:00
git-curl-compat.h http: support CURLOPT_PROTOCOLS_STR 2023-02-06 09:27:09 +01:00
git-cvsexportcommit.perl
git-cvsimport.perl
git-cvsserver.perl git-cvsserver: clarify directory list 2022-07-19 12:45:31 -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.sh: remove "say" function, change last users 2022-06-28 13:13:18 -07:00
git-merge-octopus.sh
git-merge-one-file.sh
git-merge-resolve.sh merge-resolve: abort if index does not match HEAD 2022-07-22 21:45:22 -07:00
git-mergetool--lib.sh vimdiff: add tool documentation 2022-04-03 15:09:52 -07:00
git-mergetool.sh
git-p4.py Merge branch 'kk/p4-client-name-encoding-fix' into maint 2022-08-10 21:52:33 -07:00
git-quiltimport.sh
git-request-pull.sh request-pull: filter out SSH/X.509 tag signatures 2023-01-25 15:54:41 -08:00
git-send-email.perl send-email: relay '-v N' to format-patch 2022-11-27 10:21:43 +09:00
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.sh: remove "say" function, change last users 2022-06-28 13:13:18 -07:00
git-submodule.sh Merge branch 'ss/pull-v-recurse-fix' 2022-12-28 12:06:17 +09:00
git-svn.perl
GIT-VERSION-GEN Git 2.40.1 2023-04-17 21:16:10 +02:00
git-web--browse.sh
git.c trace.c, git.c: remove unnecessary parameter to trace_repo_setup() 2023-02-21 12:06:32 -08:00
git.rc
gpg-interface.c Merge branch 'js/gpg-errors' 2023-02-24 11:32:29 -08:00
gpg-interface.h gpg-interface: add function for converting trust level to string 2022-07-10 22:10:23 -07:00
graph.c log: fix memory leak if --graph is passed multiple times 2022-02-11 10:06:40 -08:00
graph.h log: fix memory leak if --graph is passed multiple times 2022-02-11 10:06:40 -08:00
grep.c Merge branch 'ab/various-leak-fixes' 2023-02-22 14:55:45 -08:00
grep.h Merge branch 'ab/grep-simplify-extended-expression' 2022-10-21 11:37:28 -07:00
hash-lookup.c
hash-lookup.h
hash.h Makefile + hash.h: remove PPC_SHA1 implementation 2022-08-31 14:37:31 -07:00
hashmap.c git-compat-util.h: use "UNUSED", not "UNUSED(var)" 2022-09-01 10:49:48 -07:00
hashmap.h
help.c help.c: fix autocorrect in work tree for bare repository 2022-12-13 10:01:53 +09:00
help.h git docs: add a category for file formats, protocols and interfaces 2022-08-04 14:12:23 -07:00
hex.c
hook.c hook API: support passing stdin to hooks, convert am's 'post-rewrite' 2023-02-08 12:50:03 -08:00
hook.h hook API: support passing stdin to hooks, convert am's 'post-rewrite' 2023-02-08 12:50:03 -08:00
http-backend.c http-backend.c: fix cmd_main() memory leak, refactor reg{exec,free}() 2023-02-06 15:34:38 -08:00
http-fetch.c http-fetch: invoke trace2_cmd_name() 2022-12-13 10:43:07 +09:00
http-push.c Sync with 2.31.8 2023-04-17 21:15:49 +02:00
http-walker.c tree-wide: apply equals-null.cocci 2022-05-02 09:50:37 -07:00
http.c Sync with 2.34.8 2023-04-17 21:15:59 +02:00
http.h Sync with 2.30.9 2023-04-17 21:15:44 +02:00
ident.c git-compat-util.h: use "UNUSED", not "UNUSED(var)" 2022-09-01 10:49:48 -07:00
imap-send.c Merge branch 'bc/csprng-mktemps' 2022-04-06 15:21:59 -07:00
INSTALL Sync with 2.31.8 2023-04-17 21:15:49 +02:00
iterator.h
json-writer.c
json-writer.h
khash.h
kwset.c tree-wide: apply equals-null.cocci 2022-05-02 09:50:37 -07:00
kwset.h
levenshtein.c
levenshtein.h
LGPL-2.1
line-log.c line-log: free the diff queues' arrays when processing merge commits 2022-11-02 20:16:34 -04:00
line-log.h
line-range.c line-range: fix infinite loop bug with '$' regex 2022-12-20 10:00:43 +09:00
line-range.h
linear-assignment.c
linear-assignment.h
list-objects-filter-options.c list-objects-filter: remove OPT_PARSE_LIST_OBJECTS_FILTER_INIT() 2022-11-30 10:00:35 +09:00
list-objects-filter-options.h list-objects-filter: remove OPT_PARSE_LIST_OBJECTS_FILTER_INIT() 2022-11-30 10:00:35 +09:00
list-objects-filter.c Merge branch 'jk/unused-post-2.39' into maint-2.39 2023-02-14 14:15:55 -08:00
list-objects-filter.h
list-objects.c list-objects: drop process_gitlink() function 2022-12-13 22:16:22 +09:00
list-objects.h list-objects: consolidate traverse_commit_list[_filtered] 2022-03-09 10:25:27 -08:00
list.h
ll-merge.c attr: add flag --source to work with tree-ish 2023-01-14 08:49:55 -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
log-tree.c Merge branch 'ab/unused-annotation' 2022-09-14 12:56:39 -07:00
log-tree.h
ls-refs.c ls-refs: use repository parameter to iterate refs 2022-12-13 22:16:22 +09:00
ls-refs.h
mailinfo.c mailinfo -b: fix an out of bounds access 2022-10-03 09:05:07 -07:00
mailinfo.h
mailmap.c Merge branch 'ep/maint-equals-null-cocci' 2022-05-20 15:26:59 -07:00
mailmap.h
Makefile Sync with 2.36.6 2023-04-17 21:16:04 +02:00
match-trees.c object-file API: have write_object_file() take "enum object_type" 2022-02-25 17:16:31 -08:00
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: make printed message match the one from recursive 2022-07-22 21:45:22 -07:00
merge-ort-wrappers.h
merge-ort.c Merge branch 'en/ort-dir-rename-and-symlink-fix' 2022-10-30 21:04:43 -04:00
merge-ort.h merge-ort: optionally produce machine-readable output 2022-06-22 16:10:06 -07:00
merge-recursive.c treewide: always have a valid "index_state.repo" member 2023-01-17 14:32:06 -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 use child_process members "args" and "env" directly 2022-10-30 14:04:40 -04:00
mergesort.h mergesort: remove llist_mergesort() 2022-07-17 15:20:39 -07:00
midx.c Merge branch 'tb/midx-bitmap-selection-fix' 2022-10-27 14:51:52 -07:00
midx.h pack-bitmap-write: learn pack.writeBitmapLookupTable and add tests 2022-08-26 10:13:54 -07:00
name-hash.c git-compat-util.h: use "UNUSED", not "UNUSED(var)" 2022-09-01 10:49:48 -07:00
notes-cache.c object-file API: have write_object_file() take "enum object_type" 2022-02-25 17:16:31 -08:00
notes-cache.h
notes-merge.c misc *.c: use designated initializers for struct assignments 2022-03-17 10:36:42 -07:00
notes-merge.h
notes-utils.c
notes-utils.h
notes.c Merge branch 'ab/unused-annotation' 2022-09-14 12:56:39 -07:00
notes.h
object-file.c Merge branch 'jk/hash-object-fsck' 2023-01-30 14:24:22 -08:00
object-name.c git-compat-util.h: use "UNUSED", not "UNUSED(var)" 2022-09-01 10:49:48 -07:00
object-store.h repo_read_object_file(): stop wrapping read_object_file_extended() 2023-01-08 10:52:55 +09:00
object.c blob: drop unused parts of parse_blob_buffer() 2022-12-13 22:16:22 +09:00
object.h parse_object(): allow skipping hash check 2022-09-07 12:18:57 -07:00
oid-array.c
oid-array.h
oidmap.c git-compat-util.h: use "UNUSED", not "UNUSED(var)" 2022-09-01 10:49:48 -07:00
oidmap.h
oidset.c
oidset.h
oidtree.c
oidtree.h
pack-bitmap-write.c pack-bitmap-write.c: instrument number of reused bitmaps 2022-10-13 13:35:08 -07:00
pack-bitmap.c pack-bitmap.c: trace bitmap ignore logs when midx-bitmap is found 2022-11-29 09:54:56 +09:00
pack-bitmap.h pack-bitmap: prepare to read lookup table extension 2022-08-26 10:13:58 -07:00
pack-check.c object-file API: have hash_object_file() take "enum object_type" 2022-02-25 17:16:32 -08:00
pack-mtimes.c pack-mtimes: avoid closing a bogus file descriptor 2022-06-16 13:22:03 -07:00
pack-mtimes.h pack-mtimes: support reading .mtimes files 2022-05-26 15:48:26 -07:00
pack-objects.c pack-mtimes: support writing pack .mtimes files 2022-05-26 15:48:26 -07:00
pack-objects.h pack-objects.h: remove outdated pahole results 2022-06-28 15:39:03 -07:00
pack-revindex.c midx: read RIDX chunk when present 2022-01-27 12:07:53 -08:00
pack-revindex.h docs: move pack format docs to man section 5 2022-08-04 14:12:24 -07:00
pack-write.c git: remove duplicate includes 2022-12-15 09:09:38 +09:00
pack.h pack-mtimes: support writing pack .mtimes files 2022-05-26 15:48:26 -07:00
packfile.c packfile: inline custom read_object() 2023-01-08 10:52:55 +09:00
packfile.h Merge branch 'tb/pack-revindex-on-disk-cleanup' 2021-12-15 09:39:50 -08:00
pager.c git-compat-util.h: use "UNUSED", not "UNUSED(var)" 2022-09-01 10:49:48 -07:00
parallel-checkout.c checkout: fix two bugs on the final count of updated entries 2022-07-14 10:19:28 -07:00
parallel-checkout.h checkout: fix two bugs on the final count of updated entries 2022-07-14 10:19:28 -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 use DUP_ARRAY 2023-01-09 13:28:36 +09:00
parse-options.h submodule--helper: don't use global --super-prefix in "absorbgitdirs" 2022-12-26 10:21:43 +09:00
patch-delta.c
patch-ids.c Merge branch 'jz/patch-id' 2022-10-30 21:04:41 -04:00
patch-ids.h patch-id: use stable patch-id for rebases 2022-10-24 15:44:19 -07:00
path.c adjust_shared_perm(): leave g+s alone when the group does not matter 2022-10-28 14:55:27 -07:00
path.h repository.c: free the "path cache" in repo_clear() 2022-03-04 13:24:19 -08:00
pathspec.c docs & comments: replace mentions of "git-add--interactive.perl" 2023-02-06 15:03:34 -08:00
pathspec.h pathspec.h: move pathspec_needs_expanded_index() from reset.c to here 2022-08-08 13:23:26 -07:00
pkt-line.c t0021: implementation the rot13-filter.pl script in C 2022-08-14 22:57:12 -07:00
pkt-line.h Merge branch 'mt/rot13-in-c' 2022-08-29 14:55:11 -07:00
preload-index.c preload-index: fix memleak 2022-08-22 15:08:30 -07:00
pretty.c Sync with Git 2.37.5 2022-12-13 21:23:36 +09:00
pretty.h date API: create a date.h, split from cache.h 2022-02-16 09:40:00 -08:00
prio-queue.c tree-wide: apply equals-null.cocci 2022-05-02 09:50:37 -07:00
prio-queue.h
progress.c progress API: unify stop_progress{,_msg}(), fix trace2 bug 2022-02-03 15:39:59 -08:00
progress.h progress API: unify stop_progress{,_msg}(), fix trace2 bug 2022-02-03 15:39:59 -08:00
promisor-remote.c promisor-remote: die upon failing fetch 2022-10-05 11:06:53 -07:00
promisor-remote.h promisor-remote: remove a return value 2022-10-05 11:06:52 -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
protocol-caps.h
protocol.c
protocol.h
prune-packed.c
prune-packed.h
quote.c
quote.h
range-diff.c Sync with 2.31.8 2023-04-17 21:15:49 +02:00
range-diff.h
reachable.c reachable: report precise timestamps from objects in cruft packs 2022-05-26 15:48:26 -07:00
reachable.h builtin/pack-objects.c: --cruft with expiration 2022-05-26 15:48:26 -07:00
read-cache.c Merge branch 'rs/size-t-fixes' 2023-02-15 17:11:53 -08:00
README.md Merge branch 'po/readme-mention-contributor-hints' 2022-02-09 14:20:59 -08:00
rebase-interactive.c sequencer: rewrite update-refs as user edits todo list 2022-07-19 12:49:04 -07:00
rebase-interactive.h
rebase.c
rebase.h
ref-filter.c convert trivial uses of strncmp() to starts_with() 2023-01-08 10:34:35 +09:00
ref-filter.h for-each-ref: delay parsing of --sort=<atom> options 2021-10-20 14:33:07 -07:00
reflog-walk.c string-list: mark unused callback parameters 2022-10-17 21:24:04 -07:00
reflog-walk.h revisions API: release "reflog_info" in release revisions() 2022-04-13 23:56:10 -07:00
reflog.c Merge branch 'rs/reflog-expiry-cleanup' into maint-2.39 2023-02-14 14:15:56 -08:00
reflog.h reflog: libify delete reflog function and helpers 2022-03-02 15:24:47 -08:00
refs.c Merge branch 'jk/shorten-unambiguous-ref-wo-sscanf' 2023-02-27 10:08:57 -08:00
refs.h ls-refs: use repository parameter to iterate refs 2022-12-13 22:16:22 +09:00
refspec.c refspec.c: use designated initializers for "struct refspec_item" 2022-02-24 15:59:53 -08:00
refspec.h docs: move protocol-related docs to man section 5 2022-08-04 14:12:23 -07:00
RelNotes Git 2.40.1 2023-04-17 21:16:10 +02:00
remote-curl.c Sync with 2.32.7 2023-04-17 21:15:52 +02:00
remote.c git-compat-util.h: use "UNUSED", not "UNUSED(var)" 2022-09-01 10:49:48 -07:00
remote.h clone: request the 'bundle-uri' command when available 2022-12-25 16:24:23 +09:00
replace-object.c git-compat-util.h: use "UNUSED", not "UNUSED(var)" 2022-09-01 10:49:48 -07:00
replace-object.h
repo-settings.c features: feature.manyFiles implies fast index writes 2023-01-07 07:46:14 +09:00
repository.c treewide: always have a valid "index_state.repo" member 2023-01-17 14:32:06 -08:00
repository.h features: feature.manyFiles implies fast index writes 2023-01-07 07:46:14 +09:00
rerere.c Merge branch 'ep/maint-equals-null-cocci' 2022-05-20 15:26:59 -07:00
rerere.h
reset.c rebase: use 'skip_cache_tree_update' option 2022-11-10 21:49:34 -05:00
reset.h rebase --apply: set ORIG_HEAD correctly 2022-01-26 12:08:53 -08:00
resolve-undo.c
resolve-undo.h
revision.c treewide: always have a valid "index_state.repo" member 2023-01-17 14:32:06 -08:00
revision.h Merge branch 'ps/receive-use-only-advertised' 2022-11-23 11:22:25 +09:00
run-command.c run-command: allow stdin for run_processes_parallel 2023-02-08 12:50:03 -08:00
run-command.h Merge branch 'rs/no-more-run-command-v' 2022-11-08 17:15:12 -05:00
scalar.c scalar: only warn when background maintenance fails 2023-01-27 12:38:26 -08:00
SECURITY.md
send-pack.c git-compat-util.h: use "UNUSED", not "UNUSED(var)" 2022-09-01 10:49:48 -07:00
send-pack.h send-pack.c: add config push.useBitmaps 2022-06-17 14:31:01 -07:00
sequencer.c Merge branch 'pw/rebase-i-parse-fix' 2023-02-28 16:38:47 -08:00
sequencer.h sequencer API users: fix get_replay_opts() leaks 2023-02-06 16:03:52 -08:00
serve.c protocol v2: add server-side "bundle-uri" skeleton 2022-12-25 16:24:23 +09:00
serve.h
server-info.c git-compat-util.h: use "UNUSED", not "UNUSED(var)" 2022-09-01 10:49:48 -07:00
setup.c Merge branch 'js/safe-directory-plus' into maint 2022-08-26 11:13:12 -07:00
sh-i18n--envsubst.c tree-wide: apply equals-null.cocci 2022-05-02 09:50:37 -07:00
sha1dc_git.c
sha1dc_git.h Makefile & test-tool: replace "DC_SHA1" variable with a "define" 2022-11-07 22:11:51 -05:00
shallow.c git-compat-util.h: use "UNUSED", not "UNUSED(var)" 2022-09-01 10:49:48 -07:00
shallow.h
shared.mak Merge branch 'ab/gnumake-4.4-fix' 2022-12-01 18:38:07 +09:00
shell.c replace and remove run_command_v_opt() 2022-10-30 14:04:51 -04:00
shortlog.h shortlog: extract shortlog_finish_setup() 2022-10-24 14:48:05 -07:00
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 treewide: always have a valid "index_state.repo" member 2023-01-17 14:32:06 -08:00
sparse-index.h Merge branch 'ds/sparse-sparse-checkout' 2022-06-03 14:30:35 -07:00
split-index.c treewide: always have a valid "index_state.repo" member 2023-01-17 14:32:06 -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: introduce strbuf_strip_file_from_path() 2022-12-25 16:24:24 +09:00
strbuf.h strbuf: introduce strbuf_strip_file_from_path() 2022-12-25 16:24:24 +09:00
streaming.c streaming: inline call to read_object_file_extended() 2023-01-08 10:52:54 +09:00
streaming.h
string-list.c string-list: mark unused callback parameters 2022-10-17 21:24:04 -07:00
string-list.h string-list: document iterator behavior on NULL input 2022-09-27 09:32:26 -07:00
strmap.c git-compat-util.h: use "UNUSED", not "UNUSED(var)" 2022-09-01 10:49:48 -07:00
strmap.h
strvec.c
strvec.h
sub-process.c git-compat-util.h: use "UNUSED", not "UNUSED(var)" 2022-09-01 10:49:48 -07:00
sub-process.h
submodule-config.c run-command API: don't fall back on online_cpus() 2022-10-12 14:12:41 -07:00
submodule-config.h Merge branch 'pb/submodule-recurse-mode-enum' 2022-05-20 15:26:53 -07:00
submodule.c Merge branch 'ab/no-more-git-global-super-prefix' 2023-01-05 15:07:23 +09:00
submodule.h read-tree: add "--super-prefix" option, eliminate global 2022-12-26 10:21:44 +09:00
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: update comment describing state transitions 2022-08-30 14:16:51 -07:00
tempfile.h tempfile: drop active flag 2022-08-30 14:16:49 -07:00
thread-utils.c
thread-utils.h
tmp-objdir.c tmp-objdir: skip clean up when handling a signal 2022-09-30 21:26:58 -07:00
tmp-objdir.h replace and remove run_command_v_opt_cd_env() 2022-10-30 14:04:47 -04:00
trace2.c trace2: add global counter mechanism 2022-10-24 12:45:26 -07:00
trace2.h trace2: add global counter mechanism 2022-10-24 12:45:26 -07:00
trace.c trace.c, git.c: remove unnecessary parameter to trace_repo_setup() 2023-02-21 12:06:32 -08:00
trace.h trace.c, git.c: remove unnecessary parameter to trace_repo_setup() 2023-02-21 12:06:32 -08:00
trailer.c git-compat-util.h: use "UNUSED", not "UNUSED(var)" 2022-09-01 10:49:48 -07:00
trailer.h
transport-helper.c clone: request the 'bundle-uri' command when available 2022-12-25 16:24:23 +09:00
transport-internal.h clone: request the 'bundle-uri' command when available 2022-12-25 16:24:23 +09:00
transport.c Merge branch 'ds/bundle-uri-4' 2023-01-02 21:37:18 +09:00
transport.h clone: request the 'bundle-uri' command when available 2022-12-25 16:24:23 +09:00
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: add a mechanism for getting non-canonicalized modes 2022-08-10 14:26:25 -07:00
tree-walk.h tree-walk: add a mechanism for getting non-canonicalized modes 2022-08-10 14:26:25 -07:00
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 treewide: always have a valid "index_state.repo" member 2023-01-17 14:32:06 -08:00
unpack-trees.h read-tree: add "--super-prefix" option, eliminate global 2022-12-26 10:21:44 +09:00
upload-pack.c refs: get rid of global list of hidden refs 2022-11-17 16:22:51 -05:00
upload-pack.h
url.c
url.h
urlmatch.c convert trivial uses of strncmp() to starts_with() 2023-01-08 10:34:35 +09:00
urlmatch.h urlmatch.c: add and use a *_release() function 2022-03-04 13:24:18 -08:00
usage.c i18n: mark message helpers prefix for translation 2022-06-21 10:06:54 -07:00
userdiff.c Merge branch 'jc/diff-algo-attribute' 2023-02-27 10:08:56 -08:00
userdiff.h diff: teach diff to read algorithm from diff driver 2023-02-21 09:29:10 -08:00
utf8.c Sync with Git 2.31.6 2022-12-13 21:09:40 +09:00
utf8.h Sync with Git 2.31.6 2022-12-13 21:09:40 +09:00
varint.c
varint.h
version.c
version.h
versioncmp.c
walker.c git-compat-util.h: use "UNUSED", not "UNUSED(var)" 2022-09-01 10:49:48 -07:00
walker.h
wildmatch.c tree-wide: apply equals-null.cocci 2022-05-02 09:50:37 -07:00
wildmatch.h
worktree.c refs: unify parse_worktree_ref() and ref_type() 2022-09-19 11:11:11 -07:00
worktree.h refs: unify parse_worktree_ref() and ref_type() 2022-09-19 11:11:11 -07:00
wrap-for-bin.sh
wrapper.c Merge branch 'jk/pipe-command-nonblock' 2022-08-25 14:42:32 -07:00
write-or-die.c environ: GIT_FLUSH should be made a usual Boolean 2022-09-15 11:34:51 -07:00
ws.c Merge branch 'kn/attr-from-tree' 2023-01-23 13:39:51 -08:00
wt-status.c Merge branch 'jk/unused-post-2.39' 2022-12-26 11:42:05 +09:00
wt-status.h
xdiff-interface.c Merge branch 'ep/maint-equals-null-cocci' for maint-2.35 2022-05-02 10:06:04 -07:00
xdiff-interface.h
zlib.c

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 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