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Jeff King 1164e270b5 diff: store graph prefix buf in git_graph struct 
The diffopt output_prefix interface makes it the callback's job to
handle ownership of the memory it returns, keeping it valid while
callers are using it and then eventually freeing it when we are done
diffing.

In diff_output_prefix_callback() we handle this with a static strbuf,
effectively "leaking" it when the diff is done (but not triggering any
leak detectors because it's technically still reachable). This has not
been a big problem in practice, but it is a problem for libification:
two diffs running in the same process could stomp on each other's prefix
buffers.

Since we only need the strbuf when we are formatting graph padding, we
can give ownership of the strbuf to the git_graph struct, letting us
free it when that struct is no longer in use.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-10-03 14:22:22 -07:00
.github ci: use regular action versions for linux32 job 2024-09-12 10:21:10 -07:00
block-sha1
builtin Merge branch 'bl/trailers-and-incomplete-last-line-fix' into maint-2.46 2024-09-23 10:33:00 -07:00
ci ci: add Ubuntu 16.04 job to GitLab CI 2024-09-13 09:02:30 -07:00
compat compat/terminal: mark parameter of git_terminal_prompt() UNUSED 2024-09-01 08:26:51 -07:00
contrib Merge branch 'jk/osxkeychain-username-is-nul-terminated' into maint-2.46 2024-08-26 11:10:17 -07:00
Documentation Git 2.46.2 2024-09-23 10:33:01 -07:00
ewah
git-gui
gitk-git
gitweb
mergetools
negotiator
oss-fuzz
perl
po l10n: zh_CN: updated translation for 2.46 2024-07-28 19:52:41 +08:00
refs Merge branch 'ss/packed-ref-store-leakfix' into maint-2.46 2024-08-26 11:10:22 -07:00
reftable
sha1
sha1collisiondetection@855827c583
sha1dc
sha256
t line-log: protect inner strbuf from free 2024-10-03 09:07:16 -07:00
templates
trace2
xdiff
.cirrus.yml
.clang-format
.editorconfig
.gitattributes
.gitignore
.gitlab-ci.yml ci: add Ubuntu 16.04 job to GitLab CI 2024-09-13 09:02:30 -07:00
.gitmodules
.mailmap
.tsan-suppressions
abspath.c
abspath.h
aclocal.m4
add-interactive.c
add-interactive.h
add-patch.c Merge branch 'pw/add-patch-with-suppress-blank-empty' into maint-2.46 2024-08-16 12:50:54 -07:00
advice.c
advice.h
alias.c
alias.h
alloc.c
alloc.h
apply.c Merge branch 'jk/apply-patch-mode-check-fix' into maint-2.46 2024-09-12 11:02:15 -07:00
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: default to SHA1 when reading bundle headers 2024-08-13 10:26:44 -07:00
bundle.h
cache-tree.c
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
CODE_OF_CONDUCT.md
color.c
color.h
column.c
column.h
combine-diff.c
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 Merge branch 'tb/config-fixed-value-with-valueless-true' into maint-2.46 2024-08-26 11:10:18 -07:00
config.h
config.mak.dev
config.mak.in
config.mak.uname Merge branch 'rj/cygwin-has-dev-tty' into maint-2.46 2024-09-23 10:32:59 -07:00
configure.ac
connect.c
connect.h
connected.c
connected.h
convert.c Merge branch 'dh/encoding-trace-optim' into maint-2.46 2024-08-16 12:50:55 -07:00
convert.h
copy.c
copy.h
COPYING
credential.c
credential.h
csum-file.c csum-file: introduce discard_hashfile() 2024-07-26 09:04:02 -07:00
csum-file.h csum-file: introduce discard_hashfile() 2024-07-26 09:04:02 -07:00
ctype.c
daemon.c
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 diff: return const char from output_prefix callback 2024-10-03 14:22:22 -07:00
diff-merges.c
diff-merges.h
diff-no-index.c
diff.c diff: return const char from output_prefix callback 2024-10-03 14:22:22 -07:00
diff.h diff: return const char from output_prefix callback 2024-10-03 14:22:22 -07:00
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.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.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-VERSION-GEN Git 2.46.2 2024-09-23 10:33:01 -07:00
git-web--browse.sh
git-zlib.c
git-zlib.h
git.c
git.rc
gpg-interface.c
gpg-interface.h
graph.c diff: store graph prefix buf in git_graph struct 2024-10-03 14:22:22 -07:00
graph.h
grep.c
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
http-walker.c
http.c Merge branch 'jc/http-cookiefile' 2024-07-17 10:47:26 -07:00
http.h
ident.c
ident.h
imap-send.c
INSTALL
iterator.h
json-writer.c
json-writer.h
khash.h
kwset.c
kwset.h
levenshtein.c
levenshtein.h
LGPL-2.1
line-log.c line-log: use diff_line_prefix() instead of custom helper 2024-10-03 14:22:21 -07:00
line-log.h
line-range.c
line-range.h
linear-assignment.c
linear-assignment.h
list-objects-filter-options.c
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 diff: return const char from output_prefix callback 2024-10-03 14:22:22 -07:00
log-tree.h
loose.c
loose.h
ls-refs.c
ls-refs.h
mailinfo.c
mailinfo.h
mailmap.c mailmap: plug memory leak in read_mailmap_blob() 2024-07-26 08:00:09 -07:00
mailmap.h
Makefile
match-trees.c
match-trees.h
mem-pool.c
mem-pool.h
merge-blobs.c
merge-blobs.h
merge-ll.c
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 Merge branch 'ds/midx-write-repack-fix' 2024-07-23 16:54:33 -07:00
midx.c
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.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
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.h
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.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 diff: return const char from output_prefix callback 2024-10-03 14:22:22 -07:00
range-diff.h
reachable.c
reachable.h
read-cache-ll.h
read-cache.c csum-file: introduce discard_hashfile() 2024-07-26 09:04:02 -07:00
read-cache.h
README.md
rebase-interactive.c
rebase-interactive.h
rebase.c
rebase.h
ref-filter.c set errno=0 before strtoX calls 2024-08-05 10:59:20 -07:00
ref-filter.h
reflog-walk.c
reflog-walk.h
reflog.c Merge branch 'jc/reflog-expire-lookup-commit-fix' into maint-2.46 2024-08-26 11:10:21 -07:00
reflog.h
refs.c Merge branch 'ps/ref-storage-migration-fix' 2024-07-23 16:54:34 -07:00
refs.h Merge branch 'ch/refs-without-the-repository-fix' 2024-07-18 08:30:25 -07:00
refspec.c
refspec.h
RelNotes Start preparing for Git 2.46.2 2024-09-16 15:19:05 -07:00
remote-curl.c
remote.c
remote.h
replace-object.c
replace-object.h
repo-settings.c
repository.c
repository.h
rerere.c
rerere.h
reset.c
reset.h
resolve-undo.c
resolve-undo.h
revision.c Merge branch 'jk/free-commit-buffer-of-skipped-commits' into maint-2.46 2024-09-13 15:26:49 -07:00
revision.h
run-command.c
run-command.h
sane-ctype.h
scalar.c
SECURITY.md
send-pack.c
send-pack.h
sequencer.c
sequencer.h
serve.c
serve.h
server-info.c
server-info.h
setup.c safe.directory: normalize the configured path 2024-07-30 11:47:59 -07:00
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.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
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
trailer.h
transport-helper.c
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
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
walker.h
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