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Patrick Steinhardt e04838ea82 commit-graph: introduce envvar to disable commit existence checks
Our `lookup_commit_in_graph()` helper tries to look up commits from the
commit graph and, if it doesn't exist there, falls back to parsing it
from the object database instead. This is intended to speed up the
lookup of any such commit that exists in the database. There is an edge
case though where the commit exists in the graph, but not in the object
database. To avoid returning such stale commits the helper function thus
double checks that any such commit parsed from the graph also exists in
the object database. This makes the function safe to use even when
commit graphs aren't updated regularly.

We're about to introduce the same pattern into other parts of our code
base though, namely `repo_parse_commit_internal()`. Here the extra
sanity check is a bit of a tougher sell: `lookup_commit_in_graph()` was
a newly introduced helper, and as such there was no performance hit by
adding this sanity check. If we added `repo_parse_commit_internal()`
with that sanity check right from the beginning as well, this would
probably never have been an issue to begin with. But by retrofitting it
with this sanity check now we do add a performance regression to
preexisting code, and thus there is a desire to avoid this or at least
give an escape hatch.

In practice, there is no inherent reason why either of those functions
should have the sanity check whereas the other one does not: either both
of them are able to detect this issue or none of them should be. This
also means that the default of whether we do the check should likely be
the same for both. To err on the side of caution, we thus rather want to
make `repo_parse_commit_internal()` stricter than to loosen the checks
that we already have in `lookup_commit_in_graph()`.

The escape hatch is added in the form of a new GIT_COMMIT_GRAPH_PARANOIA
environment variable that mirrors GIT_REF_PARANOIA. If enabled, which is
the default, we will double check that commits looked up in the commit
graph via `lookup_commit_in_graph()` also exist in the object database.
This same check will also be added in `repo_parse_commit_internal()`.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-11-01 12:04:06 +09:00
.github ci: drop linux-clang job 2023-06-03 10:35:13 +09:00
Documentation commit-graph: introduce envvar to disable commit existence checks 2023-11-01 12:04:06 +09:00
block-sha1
builtin fsck: use enum object_type for fsck_walk callback 2023-08-19 21:17:32 -07:00
ci Merge branch 'tb/pack-bitmap-traversal-with-boundary' 2023-06-22 16:29:05 -07:00
compat Merge branch 'ds/maintenance-on-windows-fix' 2023-08-15 10:19:47 -07:00
contrib Merge branch 'ds/maintenance-on-windows-fix' 2023-08-15 10:19:47 -07:00
ewah git-compat-util: move alloc macros to git-compat-util.h 2023-07-05 11:42:31 -07:00
git-gui
gitk-git
gitweb
mergetools
negotiator
oss-fuzz object-store-ll.h: split this header out of object-store.h 2023-06-21 13:39:54 -07:00
perl
po Merge branch 'po-id' of github.com:bagasme/git-po 2023-08-21 07:05:38 +08:00
refs Merge branch 'tb/refs-exclusion-and-packed-refs' 2023-07-21 13:47:26 -07:00
reftable
sha1 avoid SHA-1 functions deprecated in OpenSSL 3+ 2023-08-01 08:34:56 -07:00
sha1collisiondetection@855827c583
sha1dc
sha256 Merge branch 'ew/hash-with-openssl-evp' 2023-08-09 16:18:15 -07:00
t commit-graph: introduce envvar to disable commit existence checks 2023-11-01 12:04:06 +09:00
templates
trace2 Merge branch 'bb/use-trace2-counters-for-fsync-stats' 2023-08-02 09:37:23 -07:00
xdiff
.cirrus.yml
.clang-format
.editorconfig
.gitattributes
.gitignore gitignore: ignore clangd .cache directory 2023-08-04 10:56:51 -07:00
.gitmodules
.mailmap mailmap: change primary address for Glen Choo 2023-08-07 11:58:17 -07:00
.tsan-suppressions
CODE_OF_CONDUCT.md
COPYING
GIT-VERSION-GEN Git 2.42 2023-08-21 09:34:58 -07:00
INSTALL
LGPL-2.1
Makefile Merge branch 'ds/maintenance-on-windows-fix' 2023-08-15 10:19:47 -07:00
README.md
RelNotes Start the 2.42 cycle 2023-06-13 12:29:46 -07:00
SECURITY.md
abspath.c abspath: move related functions to abspath 2023-06-12 13:49:35 -07:00
abspath.h abspath: move related functions to abspath 2023-06-12 13:49:35 -07:00
aclocal.m4
add-interactive.c diff.h: remove unnecessary include of oidset.h 2023-06-21 13:39:53 -07:00
add-interactive.h
add-patch.c Merge branch 'cw/compat-util-header-cleanup' 2023-07-17 11:30:42 -07:00
advice.c advice: handle "rebase" in error_resolve_conflict() 2023-08-07 13:21:00 -07:00
advice.h
alias.c Merge branch 'cw/compat-util-header-cleanup' 2023-07-17 11:30:42 -07:00
alias.h
alloc.c
alloc.h git-compat-util: move alloc macros to git-compat-util.h 2023-07-05 11:42:31 -07:00
apply.c Merge branch 'cw/compat-util-header-cleanup' 2023-07-17 11:30:42 -07:00
apply.h
archive-tar.c Merge branch 'cw/compat-util-header-cleanup' 2023-07-17 11:30:42 -07:00
archive-zip.c Merge branch 'gc/config-context' 2023-07-06 11:54:48 -07:00
archive.c git-compat-util: move alloc macros to git-compat-util.h 2023-07-05 11:42:31 -07:00
archive.h
attr.c Merge branch 'cw/compat-util-header-cleanup' 2023-07-17 11:30:42 -07:00
attr.h attr: expose and rename accessor functions 2023-06-27 11:31:06 -07:00
banned.h
base85.c
base85.h
bisect.c object-store-ll.h: split this header out of object-store.h 2023-06-21 13:39:54 -07:00
bisect.h
blame.c blame: allow --contents to work with bare repo 2023-07-21 07:32:58 -07:00
blame.h diff.h: remove unnecessary include of oidset.h 2023-06-21 13:39:53 -07:00
blob.c
blob.h
bloom.c
bloom.h
branch.c branch: update the message to refuse touching a branch in-use 2023-07-21 15:30:57 -07:00
branch.h
builtin.h builtin.h: remove unneccessary includes 2023-06-21 13:39:54 -07:00
bulk-checkin.c git-compat-util: move alloc macros to git-compat-util.h 2023-07-05 11:42:31 -07:00
bulk-checkin.h
bundle-uri.c Merge branch 'gc/config-context' 2023-07-06 11:54:48 -07:00
bundle-uri.h
bundle.c Merge branch 'dk/bundle-i18n-more' 2023-07-25 12:05:24 -07:00
bundle.h
cache-tree.c git-compat-util: move alloc macros to git-compat-util.h 2023-07-05 11:42:31 -07:00
cache-tree.h
cbtree.c
cbtree.h
chdir-notify.c
chdir-notify.h
check-builtins.sh
checkout.c
checkout.h
chunk-format.c git-compat-util: move alloc macros to git-compat-util.h 2023-07-05 11:42:31 -07:00
chunk-format.h
color.c config: inline git_color_default_config 2023-06-28 14:06:38 -07:00
color.h config: inline git_color_default_config 2023-06-28 14:06:38 -07:00
column.c
column.h
combine-diff.c treewide: remove unnecessary includes for wrapper.h 2023-07-05 11:41:59 -07:00
command-list.txt
commit-graph.c commit-graph: introduce envvar to disable commit existence checks 2023-11-01 12:04:06 +09:00
commit-graph.h commit-graph: introduce envvar to disable commit existence checks 2023-11-01 12:04:06 +09:00
commit-reach.c git-compat-util: move alloc macros to git-compat-util.h 2023-07-05 11:42:31 -07:00
commit-reach.h
commit-slab-decl.h
commit-slab-impl.h
commit-slab.h
commit.c Merge branch 'rs/pack-objects-parseopt-fix' 2023-07-28 09:45:22 -07:00
commit.h
common-main.c
config.c Merge branch 'cw/compat-util-header-cleanup' 2023-07-17 11:30:42 -07:00
config.h config: pass source to config_parser_event_fn_t 2023-06-28 14:06:40 -07:00
config.mak.dev
config.mak.in
config.mak.uname win32: add a helper to run `git.exe` without a foreground window 2023-08-09 13:58:13 -07:00
configure.ac configure.ac: always save NO_ICONV to config.status 2023-07-19 10:07:55 -07:00
connect.c Merge branch 'gc/config-context' 2023-07-06 11:54:48 -07:00
connect.h
connected.c object-store-ll.h: split this header out of object-store.h 2023-06-21 13:39:54 -07:00
connected.h
convert.c Merge branch 'cw/compat-util-header-cleanup' 2023-07-17 11:30:42 -07:00
convert.h
copy.c treewide: remove unnecessary includes for wrapper.h 2023-07-05 11:41:59 -07:00
copy.h
credential.c config: add ctx arg to config_fn_t 2023-06-28 14:06:39 -07:00
credential.h credential: avoid erasing distinct password 2023-06-15 13:26:39 -07:00
csum-file.c treewide: remove unnecessary includes for wrapper.h 2023-07-05 11:41:59 -07:00
csum-file.h
ctype.c kwset: move translation table from ctype 2023-07-05 11:41:18 -07:00
daemon.c Merge branch 'cw/compat-util-header-cleanup' 2023-07-17 11:30:42 -07:00
date.c
date.h
decorate.c hash-ll, hashmap: move oidhash() to hash-ll 2023-06-21 13:39:54 -07:00
decorate.h
delta-islands.c Merge branch 'cw/compat-util-header-cleanup' 2023-07-17 11:30:42 -07:00
delta-islands.h
delta.h
detect-compiler
diagnose.c object-store-ll.h: split this header out of object-store.h 2023-06-21 13:39:54 -07:00
diagnose.h
diff-delta.c
diff-lib.c Merge branch 'en/header-split-cache-h-part-3' 2023-06-29 16:43:21 -07:00
diff-merges.c
diff-merges.h
diff-no-index.c diff --no-index: support reading from named pipes 2023-07-05 14:00:28 -07:00
diff.c Merge branch 'cw/compat-util-header-cleanup' 2023-07-17 11:30:42 -07:00
diff.h Merge branch 'gc/config-context' 2023-07-06 11:54:48 -07:00
diffcore-break.c diff.h: remove unnecessary include of oidset.h 2023-06-21 13:39:53 -07:00
diffcore-delta.c
diffcore-order.c git-compat-util.h: remove unneccessary include of wildmatch.h 2023-06-21 13:39:54 -07:00
diffcore-pickaxe.c diff.h: remove unnecessary include of oidset.h 2023-06-21 13:39:53 -07:00
diffcore-rename.c git-compat-util: move alloc macros to git-compat-util.h 2023-07-05 11:42:31 -07:00
diffcore-rotate.c
diffcore.h
dir-iterator.c git-compat-util: move alloc macros to git-compat-util.h 2023-07-05 11:42:31 -07:00
dir-iterator.h
dir.c Merge branch 'jc/pathspec-match-with-common-prefix' 2023-07-17 11:30:43 -07:00
dir.h Merge branch 'cw/strbuf-cleanup' 2023-07-06 11:54:46 -07:00
editor.c treewide: remove unnecessary includes for wrapper.h 2023-07-05 11:41:59 -07:00
editor.h
entry.c treewide: remove unnecessary includes for wrapper.h 2023-07-05 11:41:59 -07:00
entry.h
environment.c Merge branch 'rs/pack-objects-parseopt-fix' 2023-07-28 09:45:22 -07:00
environment.h Merge branch 'rs/pack-objects-parseopt-fix' 2023-07-28 09:45:22 -07:00
exec-cmd.c run-command.h: move declarations for run-command.c from cache.h 2023-06-21 13:39:53 -07:00
exec-cmd.h
fetch-negotiator.c
fetch-negotiator.h
fetch-pack.c Merge branch 'cw/compat-util-header-cleanup' 2023-07-17 11:30:42 -07:00
fetch-pack.h
fmt-merge-msg.c Merge branch 'cw/compat-util-header-cleanup' 2023-07-17 11:30:42 -07:00
fmt-merge-msg.h config: add ctx arg to config_fn_t 2023-06-28 14:06:39 -07:00
fsck.c Merge branch 'jk/unused-parameter' 2023-07-25 12:05:24 -07:00
fsck.h config: add ctx arg to config_fn_t 2023-06-28 14:06:39 -07:00
fsmonitor--daemon.h
fsmonitor-ipc.c fsmonitor-ll.h: split this header out of fsmonitor.h 2023-06-21 13:39:54 -07:00
fsmonitor-ipc.h
fsmonitor-ll.h fsmonitor-ll.h: split this header out of fsmonitor.h 2023-06-21 13:39:54 -07:00
fsmonitor-path-utils.h
fsmonitor-settings.c
fsmonitor-settings.h
fsmonitor.c cache.h: remove this no-longer-used header 2023-06-21 13:39:53 -07:00
fsmonitor.h fsmonitor-ll.h: split this header out of fsmonitor.h 2023-06-21 13:39:54 -07:00
generate-cmdlist.sh
generate-configlist.sh
generate-hooklist.sh
gettext.c
gettext.h
git-archimport.perl
git-compat-util.h Merge branch 'cw/compat-util-header-cleanup' 2023-07-17 11:30:42 -07:00
git-curl-compat.h
git-cvsexportcommit.perl
git-cvsimport.perl
git-cvsserver.perl
git-difftool--helper.sh
git-filter-branch.sh
git-instaweb.sh
git-merge-octopus.sh
git-merge-one-file.sh
git-merge-resolve.sh
git-mergetool--lib.sh
git-mergetool.sh
git-p4.py
git-quiltimport.sh
git-request-pull.sh
git-send-email.perl send-email: avoid creating more than one Term::ReadLine object 2023-08-08 16:48:17 -07:00
git-sh-i18n.sh
git-sh-setup.sh
git-submodule.sh
git-svn.perl
git-web--browse.sh
git-zlib.c
git-zlib.h
git.c Merge branch 'en/header-split-cache-h-part-3' 2023-06-29 16:43:21 -07:00
git.rc
gpg-interface.c Merge branch 'cw/compat-util-header-cleanup' 2023-07-17 11:30:42 -07:00
gpg-interface.h
graph.c
graph.h
grep.c Merge branch 'cw/compat-util-header-cleanup' 2023-07-17 11:30:42 -07:00
grep.h config: add ctx arg to config_fn_t 2023-06-28 14:06:39 -07:00
hash-ll.h Merge branch 'ew/hash-with-openssl-evp' 2023-08-09 16:18:15 -07:00
hash-lookup.c cache.h: remove this no-longer-used header 2023-06-21 13:39:53 -07:00
hash-lookup.h
hash.h
hashmap.c
hashmap.h hash-ll, hashmap: move oidhash() to hash-ll 2023-06-21 13:39:54 -07:00
help.c Merge branch 'cw/compat-util-header-cleanup' 2023-07-17 11:30:42 -07:00
help.h
hex.c hex: retire get_sha1_hex() 2023-07-24 16:11:23 -07:00
hex.h hex: retire get_sha1_hex() 2023-07-24 16:11:23 -07:00
hook.c abspath: move related functions to abspath 2023-06-12 13:49:35 -07:00
hook.h
http-backend.c Merge branch 'tb/refs-exclusion-and-packed-refs' 2023-07-21 13:47:26 -07:00
http-fetch.c
http-push.c http-push: mark unused parameter in xml callback 2023-07-13 17:23:59 -07:00
http-walker.c object-store-ll.h: split this header out of object-store.h 2023-06-21 13:39:54 -07:00
http.c http: mark unused parameters in curl callbacks 2023-07-13 17:23:59 -07:00
http.h
ident.c Merge branch 'bc/ident-dot-is-no-longer-crud-letter' 2023-08-09 16:18:15 -07:00
ident.h config: add ctx arg to config_fn_t 2023-06-28 14:06:39 -07:00
imap-send.c Merge branch 'cw/compat-util-header-cleanup' 2023-07-17 11:30:42 -07:00
iterator.h
json-writer.c
json-writer.h
khash.h hash-ll, hashmap: move oidhash() to hash-ll 2023-06-21 13:39:54 -07:00
kwset.c kwset: move translation table from ctype 2023-07-05 11:41:18 -07:00
kwset.h kwset: move translation table from ctype 2023-07-05 11:41:18 -07:00
levenshtein.c
levenshtein.h
line-log.c git-compat-util: move alloc macros to git-compat-util.h 2023-07-05 11:42:31 -07:00
line-log.h
line-range.c
line-range.h
linear-assignment.c
linear-assignment.h
list-objects-filter-options.c git-compat-util: move alloc macros to git-compat-util.h 2023-07-05 11:42:31 -07:00
list-objects-filter-options.h list-objects-filter-options.h: remove unneccessary include 2023-06-21 13:39:53 -07:00
list-objects-filter.c git-compat-util: move alloc macros to git-compat-util.h 2023-07-05 11:42:31 -07:00
list-objects-filter.h
list-objects.c Merge branch 'jc/tree-walk-drop-base-offset' 2023-08-02 09:37:23 -07:00
list-objects.h
list.h
lockfile.c
lockfile.h
log-tree.c Merge branch 'en/header-split-cache-h-part-3' 2023-06-29 16:43:21 -07:00
log-tree.h log-tree: replace include of revision.h with simple forward declaration 2023-06-21 13:39:53 -07:00
ls-refs.c Merge branch 'tb/refs-exclusion-and-packed-refs' 2023-07-21 13:47:26 -07:00
ls-refs.h
mailinfo.c config: add ctx arg to config_fn_t 2023-06-28 14:06:39 -07:00
mailinfo.h
mailmap.c object-store-ll.h: split this header out of object-store.h 2023-06-21 13:39:54 -07:00
mailmap.h
match-trees.c object-store-ll.h: split this header out of object-store.h 2023-06-21 13:39:54 -07:00
match-trees.h
mem-pool.c
mem-pool.h
merge-blobs.c object-store-ll.h: split this header out of object-store.h 2023-06-21 13:39:54 -07:00
merge-blobs.h
merge-ll.c Merge branch 'cw/compat-util-header-cleanup' 2023-07-17 11:30:42 -07:00
merge-ll.h merge-ll: rename from ll-merge 2023-06-21 13:39:54 -07:00
merge-ort-wrappers.c cache.h: remove this no-longer-used header 2023-06-21 13:39:53 -07:00
merge-ort-wrappers.h
merge-ort.c object-store-ll.h: split this header out of object-store.h 2023-06-21 13:39:54 -07:00
merge-ort.h
merge-recursive.c treewide: remove unnecessary includes for wrapper.h 2023-07-05 11:41:59 -07:00
merge-recursive.h
merge.c diff.h: remove unnecessary include of oidset.h 2023-06-21 13:39:53 -07:00
merge.h merge.h: move declarations for merge.c from cache.h 2023-06-21 13:39:53 -07:00
mergesort.h
midx.c Merge branch 'tb/object-access-overflow-protection' 2023-07-25 12:05:23 -07:00
midx.h
name-hash.c cache.h: remove this no-longer-used header 2023-06-21 13:39:53 -07:00
name-hash.h name-hash.h: move declarations for name-hash.c from cache.h 2023-06-21 13:39:53 -07:00
notes-cache.c object-store-ll.h: split this header out of object-store.h 2023-06-21 13:39:54 -07:00
notes-cache.h
notes-merge.c treewide: remove unnecessary includes for wrapper.h 2023-07-05 11:41:59 -07:00
notes-merge.h
notes-utils.c config: add ctx arg to config_fn_t 2023-06-28 14:06:39 -07:00
notes-utils.h
notes.c Merge branch 'gc/config-context' 2023-07-06 11:54:48 -07:00
notes.h notes: move the documentation to the struct 2023-06-06 09:35:05 +09:00
object-file.c Merge branch 'jk/unused-parameter' 2023-07-25 12:05:24 -07:00
object-file.h
object-name.c Merge branch 'cw/strbuf-cleanup' 2023-07-06 11:54:46 -07:00
object-name.h object-name: move related functions to object-name 2023-06-12 13:49:36 -07:00
object-store-ll.h Merge branch 'tb/object-access-overflow-protection' 2023-07-25 12:05:23 -07:00
object-store.h packfile.c: prevent overflow in `load_idx()` 2023-07-14 09:31:34 -07:00
object.c Merge branch 'en/header-split-cache-h-part-3' 2023-06-29 16:43:21 -07:00
object.h Merge branch 'tb/pack-bitmap-traversal-with-boundary' 2023-06-22 16:29:05 -07:00
oid-array.c git-compat-util: move alloc macros to git-compat-util.h 2023-07-05 11:42:31 -07:00
oid-array.h
oidmap.c
oidmap.h read-cache*.h: move declarations for read-cache.c functions from cache.h 2023-06-21 13:39:53 -07:00
oidset.c
oidset.h
oidtree.c git-compat-util: move alloc macros to git-compat-util.h 2023-07-05 11:42:31 -07:00
oidtree.h
pack-bitmap-write.c git-compat-util: move alloc macros to git-compat-util.h 2023-07-05 11:42:31 -07:00
pack-bitmap.c Merge branch 'tb/object-access-overflow-protection' 2023-07-25 12:05:23 -07:00
pack-bitmap.h Merge branch 'tb/pack-bitmap-traversal-with-boundary' 2023-06-22 16:29:05 -07:00
pack-check.c object-store-ll.h: split this header out of object-store.h 2023-06-21 13:39:54 -07:00
pack-mtimes.c object-store-ll.h: split this header out of object-store.h 2023-06-21 13:39:54 -07:00
pack-mtimes.h
pack-objects.c git-compat-util: move alloc macros to git-compat-util.h 2023-07-05 11:42:31 -07:00
pack-objects.h object-store-ll.h: split this header out of object-store.h 2023-06-21 13:39:54 -07:00
pack-revindex.c object-store-ll.h: split this header out of object-store.h 2023-06-21 13:39:54 -07:00
pack-revindex.h
pack-write.c treewide: remove unnecessary includes for wrapper.h 2023-07-05 11:41:59 -07:00
pack.h
packfile.c Merge branch 'jc/retire-get-sha1-hex' 2023-08-04 10:52:30 -07:00
packfile.h
pager.c config: add ctx arg to config_fn_t 2023-06-28 14:06:39 -07:00
pager.h
parallel-checkout.c git-compat-util: move alloc macros to git-compat-util.h 2023-07-05 11:42:31 -07:00
parallel-checkout.h
parse-options-cb.c
parse-options.c parse-options: disallow negating OPTION_SET_INT 0 2023-08-08 16:55:07 -07:00
parse-options.h fetch: reject --no-ipv[46] 2023-07-18 14:47:30 -07:00
patch-delta.c
patch-ids.c diff.h: remove unnecessary include of oidset.h 2023-06-21 13:39:53 -07:00
patch-ids.h
path.c Merge branch 'cw/compat-util-header-cleanup' 2023-07-17 11:30:42 -07:00
path.h path: move related function to path 2023-06-12 13:49:36 -07:00
pathspec.c git-compat-util.h: remove unneccessary include of wildmatch.h 2023-06-21 13:39:54 -07:00
pathspec.h Merge branch 'jk/log-follow-with-non-literal-pathspec' 2023-06-20 15:53:13 -07:00
pkt-line.c Merge branch 'cw/compat-util-header-cleanup' 2023-07-17 11:30:42 -07:00
pkt-line.h pkt-line: add size parameter to packet_length() 2023-07-07 15:30:16 -07:00
preload-index.c cache.h: remove this no-longer-used header 2023-06-21 13:39:53 -07:00
preload-index.h preload-index.h: move declarations for preload-index.c from elsewhere 2023-06-21 13:39:53 -07:00
pretty.c Merge branch 'cw/compat-util-header-cleanup' 2023-07-17 11:30:42 -07:00
pretty.h
prio-queue.c git-compat-util: move alloc macros to git-compat-util.h 2023-07-05 11:42:31 -07:00
prio-queue.h
progress.c
progress.h
promisor-remote.c Merge branch 'gc/config-context' 2023-07-06 11:54:48 -07:00
promisor-remote.h
prompt.c
prompt.h
protocol-caps.c object-store-ll.h: split this header out of object-store.h 2023-06-21 13:39:54 -07:00
protocol-caps.h
protocol.c
protocol.h
prune-packed.c object-store-ll.h: split this header out of object-store.h 2023-06-21 13:39:54 -07:00
prune-packed.h
quote.c git-compat-util: move alloc macros to git-compat-util.h 2023-07-05 11:42:31 -07:00
quote.h
range-diff.c diff.h: remove unnecessary include of oidset.h 2023-06-21 13:39:53 -07:00
range-diff.h
reachable.c Merge branch 'en/header-split-cache-h-part-3' 2023-06-29 16:43:21 -07:00
reachable.h
read-cache-ll.h read-cache*.h: move declarations for read-cache.c functions from cache.h 2023-06-21 13:39:53 -07:00
read-cache.c Merge branch 'cw/compat-util-header-cleanup' 2023-07-17 11:30:42 -07:00
read-cache.h read-cache*.h: move declarations for read-cache.c functions from cache.h 2023-06-21 13:39:53 -07:00
rebase-interactive.c Merge branch 'cw/compat-util-header-cleanup' 2023-07-17 11:30:42 -07:00
rebase-interactive.h
rebase.c
rebase.h
ref-filter.c Merge branch 'ks/ref-filter-describe' 2023-08-02 09:37:24 -07:00
ref-filter.h builtin/for-each-ref.c: add `--exclude` option 2023-07-10 14:48:55 -07:00
reflog-walk.c git-compat-util: move alloc macros to git-compat-util.h 2023-07-05 11:42:31 -07:00
reflog-walk.h
reflog.c object-store-ll.h: split this header out of object-store.h 2023-06-21 13:39:54 -07:00
reflog.h
refs.c Merge branch 'jk/unused-parameter' 2023-07-25 12:05:24 -07:00
refs.h Merge branch 'tb/refs-exclusion-and-packed-refs' 2023-07-21 13:47:26 -07:00
refspec.c git-compat-util: move alloc macros to git-compat-util.h 2023-07-05 11:42:31 -07:00
refspec.h
remote-curl.c Merge branch 'cw/compat-util-header-cleanup' 2023-07-17 11:30:42 -07:00
remote.c Merge branch 'ah/advise-force-pushing' 2023-07-25 12:05:23 -07:00
remote.h wt-status: don't show divergence advice when committing 2023-07-13 09:14:58 -07:00
replace-object.c Merge branch 'en/header-split-cache-h-part-3' 2023-06-29 16:43:21 -07:00
replace-object.h Merge branch 'en/header-split-cache-h-part-3' 2023-06-29 16:43:21 -07:00
repo-settings.c repository: create read_replace_refs setting 2023-06-12 13:34:55 -07:00
repository.c object-store-ll.h: split this header out of object-store.h 2023-06-21 13:39:54 -07:00
repository.h Merge branch 'en/header-split-cache-h-part-3' 2023-06-29 16:43:21 -07:00
rerere.c Merge branch 'jc/retire-get-sha1-hex' 2023-08-04 10:52:30 -07:00
rerere.h
reset.c
reset.h
resolve-undo.c cache.h: remove this no-longer-used header 2023-06-21 13:39:53 -07:00
resolve-undo.h
revision.c Merge branch 'jk/unused-parameter' 2023-07-25 12:05:24 -07:00
revision.h Merge branch 'jk/unused-parameter' 2023-07-25 12:05:24 -07:00
run-command.c Merge branch 'ma/locate-in-path-for-windows' 2023-08-09 16:18:16 -07:00
run-command.h cache.h: remove this no-longer-used header 2023-06-21 13:39:53 -07:00
sane-ctype.h sane-ctype.h: create header for sane-ctype macros 2023-07-05 11:41:18 -07:00
scalar.c config: add ctx arg to config_fn_t 2023-06-28 14:06:39 -07:00
send-pack.c treewide: remove unnecessary includes for wrapper.h 2023-07-05 11:41:59 -07:00
send-pack.h
sequencer.c Merge branch 'pw/rebase-skip-commit-message-fix' 2023-08-09 16:18:16 -07:00
sequencer.h
serve.c hash-ll, hashmap: move oidhash() to hash-ll 2023-06-21 13:39:54 -07:00
serve.h
server-info.c git-compat-util: move alloc macros to git-compat-util.h 2023-07-05 11:42:31 -07:00
server-info.h
setup.c Merge branch 'cw/compat-util-header-cleanup' 2023-07-17 11:30:42 -07:00
setup.h setup: adopt shared init-db & clone code 2023-06-21 13:39:53 -07:00
sh-i18n--envsubst.c
sha1dc_git.c
sha1dc_git.h
shallow.c git-compat-util: move alloc macros to git-compat-util.h 2023-07-05 11:42:31 -07:00
shallow.h
shared.mak
shell.c
shortlog.h
sideband.c
sideband.h
sigchain.c git-compat-util: move alloc macros to git-compat-util.h 2023-07-05 11:42:31 -07:00
sigchain.h
simple-ipc.h
sparse-index.c git-compat-util: move alloc macros to git-compat-util.h 2023-07-05 11:42:31 -07:00
sparse-index.h sparse-index.h: move declarations for sparse-index.c from cache.h 2023-06-21 13:39:53 -07:00
split-index.c git-compat-util: move alloc macros to git-compat-util.h 2023-07-05 11:42:31 -07:00
split-index.h
stable-qsort.c
statinfo.c statinfo: move stat_{data,validity} functions from cache/read-cache 2023-06-21 13:39:53 -07:00
statinfo.h Merge branch 'en/header-split-cache-h-part-3' 2023-06-29 16:43:21 -07:00
strbuf.c Merge branch 'rs/strbuf-addftime-simplify' 2023-07-25 12:05:24 -07:00
strbuf.h Merge branch 'cw/compat-util-header-cleanup' 2023-07-17 11:30:42 -07:00
streaming.c treewide: remove unnecessary includes for wrapper.h 2023-07-05 11:41:59 -07:00
streaming.h
string-list.c git-compat-util: move alloc macros to git-compat-util.h 2023-07-05 11:42:31 -07:00
string-list.h
strmap.c
strmap.h
strvec.c git-compat-util: move alloc macros to git-compat-util.h 2023-07-05 11:42:31 -07:00
strvec.h
sub-process.c
sub-process.h
submodule-config.c Merge branch 'cw/compat-util-header-cleanup' 2023-07-17 11:30:42 -07:00
submodule-config.h config: pass kvi to die_bad_number() 2023-06-28 14:06:40 -07:00
submodule.c git-compat-util: move alloc macros to git-compat-util.h 2023-07-05 11:42:31 -07:00
submodule.h
symlinks.c
symlinks.h
tag.c treewide: remove unnecessary includes for wrapper.h 2023-07-05 11:41:59 -07:00
tag.h
tar.h
tempfile.c Merge branch 'cw/compat-util-header-cleanup' 2023-07-17 11:30:42 -07:00
tempfile.h
thread-utils.c
thread-utils.h
tmp-objdir.c object-store-ll.h: split this header out of object-store.h 2023-06-21 13:39:54 -07:00
tmp-objdir.h
trace.c treewide: remove unnecessary includes for wrapper.h 2023-07-05 11:41:59 -07:00
trace.h
trace2.c wrapper: use trace2 counters to collect fsync stats 2023-07-20 11:52:53 -07:00
trace2.h Merge branch 'bb/use-trace2-counters-for-fsync-stats' 2023-08-02 09:37:23 -07:00
trailer.c Merge branch 'cw/compat-util-header-cleanup' 2023-07-17 11:30:42 -07:00
trailer.h
transport-helper.c treewide: remove unnecessary includes for wrapper.h 2023-07-05 11:41:59 -07:00
transport-internal.h
transport.c git-compat-util: move alloc macros to git-compat-util.h 2023-07-05 11:42:31 -07:00
transport.h
tree-diff.c Merge branch 'jc/tree-walk-drop-base-offset' 2023-08-02 09:37:23 -07:00
tree-walk.c Merge branch 'jc/tree-walk-drop-base-offset' 2023-08-02 09:37:23 -07:00
tree-walk.h tree-walk: lose base_offset that is never used in tree_entry_interesting 2023-07-07 15:27:28 -07:00
tree.c Merge branch 'jc/tree-walk-drop-base-offset' 2023-08-02 09:37:23 -07:00
tree.h
unicode-width.h
unimplemented.sh
unix-socket.c
unix-socket.h
unix-stream-server.c
unix-stream-server.h
unpack-trees.c object-store-ll.h: split this header out of object-store.h 2023-06-21 13:39:54 -07:00
unpack-trees.h read-cache*.h: move declarations for read-cache.c functions from cache.h 2023-06-21 13:39:53 -07:00
upload-pack.c Merge branch 'tb/refs-exclusion-and-packed-refs' 2023-07-21 13:47:26 -07:00
upload-pack.h
url.c
url.h
urlmatch.c config: add ctx arg to config_fn_t 2023-06-28 14:06:39 -07:00
urlmatch.h config: add ctx arg to config_fn_t 2023-06-28 14:06:39 -07:00
usage.c treewide: remove unnecessary includes for wrapper.h 2023-07-05 11:41:59 -07:00
userdiff.c git-compat-util: move alloc macros to git-compat-util.h 2023-07-05 11:42:31 -07:00
userdiff.h
utf8.c
utf8.h
varint.c
varint.h
version.c
version.h
versioncmp.c git-compat-util: move strbuf.c funcs to its header 2023-07-05 11:41:18 -07:00
versioncmp.h
walker.c object-store-ll.h: split this header out of object-store.h 2023-06-21 13:39:54 -07:00
walker.h
wildmatch.c
wildmatch.h
worktree.c Merge branch 'cw/compat-util-header-cleanup' 2023-07-17 11:30:42 -07:00
worktree.h
wrap-for-bin.sh
wrapper.c Merge branch 'bb/use-trace2-counters-for-fsync-stats' 2023-08-02 09:37:23 -07:00
wrapper.h wrapper: use trace2 counters to collect fsync stats 2023-07-20 11:52:53 -07:00
write-or-die.c treewide: remove unnecessary includes for wrapper.h 2023-07-05 11:41:59 -07:00
write-or-die.h
ws.c
ws.h
wt-status.c Merge branch 'ah/advise-force-pushing' 2023-07-25 12:05:23 -07:00
wt-status.h
xdiff-interface.c Merge branch 'gc/config-context' 2023-07-06 11:54:48 -07:00
xdiff-interface.h config: add ctx arg to config_fn_t 2023-06-28 14:06:39 -07:00

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