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Jonathan Tan 1a14c857db index-pack --promisor: also check commits' trees
Commit c08589efdc (index-pack: repack local links into promisor packs,
2024-11-01) seems to contain an oversight in that the tree of a commit
is not checked. Teach git to check these trees.

The fix slows down a fetch from a certain repo at $DAYJOB from 2m2.127s
to 2m45.052s, but in order to make the fetch correct, it seems worth it.

In order to test this, we could create server and client repos as
follows...

 C   S
  \ /
   O

(O and C are commits both on the client and server. S is a commit
only on the server. C and S have the same tree but different commit
messages. The diff between O and C is non-zero.)

...and then, from the client, fetch S from the server.

In theory, the client declares "have C" and the server can use this
information to exclude S's tree (since it knows that the client has C's
tree, which is the same as S's tree). However, it is also possible for
the server to compute that it needs to send S and not O, and proceed
from there; therefore the objects of C are not considered at all when
determining what to send in the packfile. In order to prevent a test of
client functionality from having such a dependence on server behavior, I
have not included such a test.

Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-12-10 08:53:59 +09:00
.github
Documentation The twelfth batch 2024-11-27 07:57:10 +09:00
block-sha1
builtin index-pack --promisor: also check commits' trees 2024-12-10 08:53:59 +09:00
ci Merge branch 'ss/duplicate-typos' 2024-11-01 12:53:23 -04:00
compat Merge branch 'ak/typofixes' into maint-2.47 2024-11-25 12:29:48 +09:00
contrib cmake: use verbatim arguments when invoking clar commands 2024-11-18 09:59:26 +09:00
ewah
git-gui Merge https://github.com/j6t/git-gui 2024-11-11 12:47:44 +09:00
gitk-git
gitweb
mergetools
negotiator
oss-fuzz
perl
po
refs
reftable
sha1
sha1collisiondetection@855827c583
sha1dc
sha256
t Merge branch 'kn/ref-transaction-hook-with-reflog' 2024-11-27 07:57:10 +09:00
templates
trace2
xdiff
.cirrus.yml
.clang-format
.editorconfig
.gitattributes
.gitignore
.gitlab-ci.yml
.gitmodules
.mailmap
.tsan-suppressions
CODE_OF_CONDUCT.md
COPYING
GIT-VERSION-GEN Prepare for 2.47.1 2024-11-20 14:43:30 +09:00
INSTALL
LGPL-2.1
Makefile Makefile(s): avoid recipe prefix in conditional statements 2024-11-24 13:45:49 +01:00
README.md
RelNotes Prepare for 2.47.1 2024-11-20 14:43:30 +09:00
SECURITY.md
abspath.c
abspath.h
aclocal.m4
add-interactive.c
add-interactive.h
add-patch.c
advice.c
advice.h
alias.c
alias.h
alloc.c
alloc.h
apply.c
apply.h
archive-tar.c
archive-zip.c
archive.c
archive.h
attr.c
attr.h
banned.h
base85.c
base85.h
bisect.c
bisect.h
blame.c
blame.h
blob.c
blob.h
bloom.c
bloom.h
branch.c
branch.h
builtin.h
bulk-checkin.c
bulk-checkin.h
bundle-uri.c
bundle-uri.h
bundle.c
bundle.h
cache-tree.c Merge branch 'ps/cache-tree-w-broken-index-entry' into maint-2.47 2024-11-20 14:42:59 +09:00
cache-tree.h
cbtree.c
cbtree.h
chdir-notify.c
chdir-notify.h
check-builtins.sh
checkout.c
checkout.h
chunk-format.c
chunk-format.h
color.c
color.h
column.c
column.h
combine-diff.c combine-diff: fix leaking lost lines 2024-11-04 22:37:55 -08:00
command-list.txt
commit-graph.c
commit-graph.h
commit-reach.c
commit-reach.h
commit-slab-decl.h
commit-slab-impl.h
commit-slab.h
commit.c
commit.h
common-main.c
config.c
config.h
config.mak.dev
config.mak.in
config.mak.uname
configure.ac
connect.c
connect.h
connected.c packfile: use object_id in find_pack_entry_one() 2024-10-25 17:35:46 -04:00
connected.h
convert.c
convert.h
copy.c
copy.h
credential.c
credential.h
csum-file.c
csum-file.h
ctype.c
daemon.c daemon: replace atoi() with strtoul_ui() and strtol_i() 2024-10-24 14:03:43 -04:00
date.c
date.h
decorate.c
decorate.h
delta-islands.c
delta-islands.h
delta.h
detect-compiler
diagnose.c
diagnose.h
diff-delta.c
diff-lib.c Merge branch 'jk/output-prefix-cleanup' into maint-2.47 2024-11-25 12:29:39 +09:00
diff-merges.c
diff-merges.h
diff-no-index.c
diff.c Merge branch 'jk/output-prefix-cleanup' into maint-2.47 2024-11-25 12:29:39 +09:00
diff.h Merge branch 'jk/output-prefix-cleanup' into maint-2.47 2024-11-25 12:29:39 +09:00
diffcore-break.c
diffcore-delta.c
diffcore-order.c
diffcore-pickaxe.c
diffcore-rename.c
diffcore-rotate.c
diffcore.h
dir-iterator.c
dir-iterator.h
dir.c dir: fix leak when parsing "status.showUntrackedFiles" 2024-11-04 22:37:56 -08:00
dir.h
editor.c
editor.h
entry.c
entry.h
environment.c
environment.h
exec-cmd.c
exec-cmd.h
fetch-negotiator.c
fetch-negotiator.h
fetch-pack.c fetch-pack: die if in commit graph but not obj db 2024-11-05 18:57:22 -08:00
fetch-pack.h
fmt-merge-msg.c
fmt-merge-msg.h
fsck.c
fsck.h
fsmonitor--daemon.h
fsmonitor-ipc.c
fsmonitor-ipc.h
fsmonitor-ll.h
fsmonitor-path-utils.h
fsmonitor-settings.c
fsmonitor-settings.h
fsmonitor.c
fsmonitor.h
generate-cmdlist.sh
generate-configlist.sh
generate-hooklist.sh
gettext.c
gettext.h
git-archimport.perl
git-compat-util.h
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
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 'jc/a-commands-without-the-repo' 2024-10-25 14:02:36 -04:00
git.rc
gpg-interface.c
gpg-interface.h
graph.c Merge branch 'jk/output-prefix-cleanup' into maint-2.47 2024-11-25 12:29:39 +09:00
graph.h
grep.c Merge branch 'ps/leakfixes-part-9' 2024-11-13 08:35:31 +09:00
grep.h
hash-lookup.c
hash-lookup.h
hash.h
hashmap.c
hashmap.h
help.c
help.h
hex-ll.c
hex-ll.h
hex.c
hex.h
hook.c
hook.h
http-backend.c
http-fetch.c
http-push.c packfile: convert find_sha1_pack() to use object_id 2024-10-25 17:35:46 -04:00
http-walker.c packfile: convert find_sha1_pack() to use object_id 2024-10-25 17:35:46 -04:00
http.c Merge branch 'jk/dumb-http-finalize' 2024-11-01 12:53:32 -04:00
http.h
ident.c
ident.h
imap-send.c imap: replace atoi() with strtol_i() for UIDVALIDITY and UIDNEXT parsing 2024-10-24 14:03:44 -04:00
iterator.h
json-writer.c
json-writer.h
khash.h
kwset.c
kwset.h
levenshtein.c
levenshtein.h
line-log.c
line-log.h
line-range.c
line-range.h
linear-assignment.c
linear-assignment.h
list-objects-filter-options.c list-objects-filter-options: work around reported leak on error 2024-11-04 22:37:57 -08:00
list-objects-filter-options.h
list-objects-filter.c
list-objects-filter.h
list-objects.c
list-objects.h
list.h
lockfile.c
lockfile.h
log-tree.c Merge branch 'jk/output-prefix-cleanup' into maint-2.47 2024-11-25 12:29:39 +09:00
log-tree.h
loose.c
loose.h
ls-refs.c
ls-refs.h
mailinfo.c
mailinfo.h
mailmap.c
mailmap.h
match-trees.c
match-trees.h
mem-pool.c
mem-pool.h
merge-blobs.c
merge-blobs.h
merge-ll.c merge: replace atoi() with strtol_i() for marker size validation 2024-10-24 14:03:44 -04:00
merge-ll.h
merge-ort-wrappers.c
merge-ort-wrappers.h
merge-ort.c
merge-ort.h
merge-recursive.c
merge-recursive.h
merge.c
merge.h
mergesort.h
midx-write.c
midx.c packfile: use object_id in find_pack_entry_one() 2024-10-25 17:35:46 -04:00
midx.h
name-hash.c
name-hash.h
notes-cache.c
notes-cache.h
notes-merge.c
notes-merge.h
notes-utils.c
notes-utils.h
notes.c
notes.h
object-file-convert.c
object-file-convert.h
object-file.c object-file: inline empty tree and blob literals 2024-11-18 21:48:48 +09:00
object-file.h
object-name.c
object-name.h
object-store-ll.h
object-store.h
object.c
object.h
oid-array.c
oid-array.h
oidmap.c
oidmap.h
oidset.c
oidset.h
oidtree.c
oidtree.h
pack-bitmap-write.c
pack-bitmap.c packfile: use object_id in find_pack_entry_one() 2024-10-25 17:35:46 -04:00
pack-bitmap.h
pack-check.c
pack-mtimes.c
pack-mtimes.h
pack-objects.c
pack-objects.h
pack-revindex.c
pack-revindex.h
pack-write.c
pack.h
packfile.c packfile: use oidread() instead of hashcpy() to fill object_id 2024-10-25 17:35:46 -04:00
packfile.h packfile: use object_id in find_pack_entry_one() 2024-10-25 17:35:46 -04:00
pager.c
pager.h
parallel-checkout.c
parallel-checkout.h
parse-options-cb.c
parse-options.c
parse-options.h
parse.c
parse.h
patch-delta.c
patch-ids.c
patch-ids.h
path.c
path.h
pathspec.c
pathspec.h
pkt-line.c
pkt-line.h
preload-index.c
preload-index.h
pretty.c pretty: clear signature check 2024-11-04 22:37:53 -08:00
pretty.h
prio-queue.c
prio-queue.h
progress.c
progress.h
promisor-remote.c
promisor-remote.h
prompt.c
prompt.h
protocol-caps.c
protocol-caps.h
protocol.c
protocol.h
prune-packed.c
prune-packed.h
pseudo-merge.c
pseudo-merge.h
quote.c
quote.h
range-diff.c Merge branch 'jk/output-prefix-cleanup' into maint-2.47 2024-11-25 12:29:39 +09:00
range-diff.h
reachable.c
reachable.h
read-cache-ll.h
read-cache.c Merge branch 'ps/cache-tree-w-broken-index-entry' into maint-2.47 2024-11-20 14:42:59 +09:00
read-cache.h
rebase-interactive.c
rebase-interactive.h
rebase.c
rebase.h
ref-filter.c
ref-filter.h
reflog-walk.c
reflog-walk.h
reflog.c reflog: rename unreachable 2024-11-18 09:42:08 +09:00
reflog.h
refs.c refs: don't invoke reference-transaction hook for reflogs 2024-11-15 08:48:23 +09:00
refs.h
refspec.c refspec: store raw refspecs inside refspec_item 2024-11-12 18:16:48 +09:00
refspec.h refspec: store raw refspecs inside refspec_item 2024-11-12 18:16:48 +09:00
remote-curl.c
remote.c
remote.h
replace-object.c
replace-object.h
repo-settings.c
repo-settings.h
repository.c
repository.h
rerere.c
rerere.h
reset.c
reset.h
resolve-undo.c
resolve-undo.h
revision.c revision: fix leaking bloom filters 2024-11-04 22:37:52 -08:00
revision.h
run-command.c
run-command.h
sane-ctype.h
scalar.c
send-pack.c
send-pack.h
sequencer.c
sequencer.h
serve.c
serve.h
server-info.c
server-info.h
setup.c
setup.h
sh-i18n--envsubst.c
sha1dc_git.c
sha1dc_git.h
shallow.c
shallow.h
shared.mak
shell.c
shortlog.h
sideband.c
sideband.h
sigchain.c
sigchain.h
simple-ipc.h
sparse-index.c sparse-index: correctly free EWAH contents 2024-11-04 22:37:56 -08:00
sparse-index.h
split-index.c
split-index.h
stable-qsort.c
statinfo.c
statinfo.h
strbuf.c
strbuf.h
streaming.c
streaming.h
string-list.c
string-list.h
strmap.c
strmap.h
strvec.c
strvec.h
sub-process.c
sub-process.h
submodule-config.c
submodule-config.h
submodule.c refspec: store raw refspecs inside refspec_item 2024-11-12 18:16:48 +09:00
submodule.h
symlinks.c
symlinks.h
tag.c
tag.h
tar.h
tempfile.c
tempfile.h
thread-utils.c
thread-utils.h
tmp-objdir.c
tmp-objdir.h
trace.c
trace.h
trace2.c
trace2.h
trailer.c Merge branch 'la/trailer-info' 2024-11-20 14:47:17 +09:00
trailer.h
transport-helper.c transport-helper: fix leaking import/export marks 2024-11-04 22:37:54 -08:00
transport-internal.h
transport.c
transport.h
tree-diff.c
tree-walk.c
tree-walk.h
tree.c
tree.h
unicode-width.h
unimplemented.sh
unix-socket.c
unix-socket.h
unix-stream-server.c
unix-stream-server.h
unpack-trees.c
unpack-trees.h
upload-pack.c Merge branch 'en/shallow-exclude-takes-a-ref-fix' 2024-11-13 08:35:32 +09:00
upload-pack.h
url.c
url.h
urlmatch.c
urlmatch.h
usage.c
userdiff.c
userdiff.h
utf8.c
utf8.h
varint.c
varint.h
version.c
version.h
versioncmp.c
versioncmp.h
walker.c http-walker: use object_id instead of bare hash 2024-10-25 17:35:46 -04:00
walker.h http-walker: use object_id instead of bare hash 2024-10-25 17:35:46 -04:00
wildmatch.c
wildmatch.h
worktree.c
worktree.h
wrap-for-bin.sh
wrapper.c
wrapper.h
write-or-die.c
write-or-die.h
ws.c
ws.h
wt-status.c
wt-status.h
xdiff-interface.c
xdiff-interface.h

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 to git+subscribe@vger.kernel.org (see https://subspace.kernel.org/subscribing.html for details). The mailing list archives are available at https://lore.kernel.org/git/, https://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