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Jeff King 5f64279443 upload-pack: always turn off save_commit_buffer 
When the client sends us "want $oid" lines, we call parse_object($oid)
to get an object struct. It's important to parse the commits because we
need to traverse them in the negotiation phase. But of course we don't
need to hold on to the commit messages for each one.

We've turned off the save_commit_buffer flag in get_common_commits() for
a long time, since f0243f26f6 (git-upload-pack: More efficient usage of
the has_sha1 array, 2005-10-28). That helps with the commits we see
while actually traversing. But:

  1. That function is only used by the v0 protocol. I think the v2
     protocol's code path leaves the flag on (and thus pays the extra
     memory penalty), though I didn't measure it specifically.

  2. If the client sends us a bunch of "want" lines, that happens before
     the negotiation phase. So we'll hold on to all of those commit
     messages. Generally the number of "want" lines scales with the
     refs, not with the number of objects in the repo. But a malicious
     client could send a lot in order to waste memory.

As an example of (2), if I generate a request to fetch all commits in
git.git like this:

  pktline() {
    local msg="$*"
    printf "%04x%s\n" $((1+4+${#msg})) "$msg"
  }

  want_commits() {
    pktline command=fetch
    printf 0001
    git cat-file --batch-all-objects --batch-check='%(objectname) %(objecttype)' |
      while read oid type; do
        test "$type" = "commit" || continue
        pktline want $oid
      done
      pktline done
      printf 0000
  }

  want_commits | GIT_PROTOCOL=version=2 valgrind --tool=massif git-upload-pack . >/dev/null

before this patch upload-pack peaks at ~125MB, and after at ~35MB. The
difference is not coincidentally about the same as the sum of all commit
object sizes as computed by:

  git cat-file --batch-all-objects --batch-check='%(objecttype) %(objectsize)' |
  perl -alne '$v += $F[1] if $F[0] eq "commit"; END { print $v }'

In a larger repository like linux.git, that number is ~1GB.

In a repository with a full commit-graph file this will have no impact
(and the commit graph would save us from parsing at all, so is a much
better solution!). But it's easy to do, might help a little in
real-world cases (where even if you have a commit graph it might not be
fully up to date), and helps a lot for a worst-case malicious request.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
 		2024-02-28 14:42:01 -08:00
.github l10n: ci: disable cache for setup-go to suppress warnings 2024-02-16 11:51:19 +08:00
Documentation upload-pack: disallow object-info capability by default 2024-02-28 14:42:01 -08:00
block-sha1
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builtin upload-pack: always turn off save_commit_buffer 2024-02-28 14:42:01 -08:00
ci Merge branch 'js/ci-discard-prove-state' into maint-2.43 2024-02-08 16:22:00 -08:00
compat Merge branch 'js/win32-retry-pipe-write-on-enospc' into maint-2.43 2024-02-13 14:44:51 -08:00
contrib Merge branch 'pb/complete-config' 2024-02-14 15:36:06 -08:00
ewah ewah: implement `bitmap_is_empty()` 2023-12-14 14:38:07 -08:00
git-gui Merge branch 'js/update-urls-in-doc-and-comment' into maint-2.43 2024-02-08 16:22:01 -08:00
gitk-git doc: switch links to https 2023-11-26 10:07:05 +09:00
gitweb Merge branch 'js/update-urls-in-doc-and-comment' into maint-2.43 2024-02-08 16:22:01 -08:00
mergetools
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negotiator treewide: remove unnecessary includes in source files 2023-12-26 12:04:31 -08:00
oss-fuzz Merge branch 'js/oss-fuzz-build-in-ci' 2024-01-29 16:03:00 -08:00
perl Merge branch 'js/update-urls-in-doc-and-comment' into maint-2.43 2024-02-08 16:22:01 -08:00
po l10n: zh_TW: Git 2.44 2024-02-18 21:03:43 +08:00
refs Merge branch 'ps/worktree-refdb-initialization' 2024-01-26 08:54:46 -08:00
reftable Merge branch 'jc/comment-style-fixes' into maint-2.43 2024-02-13 14:44:48 -08:00
sha1 avoid SHA-1 functions deprecated in OpenSSL 3+ 2023-08-01 08:34:56 -07:00
sha1collisiondetection@855827c583
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sha1dc doc: refer to internet archive 2023-11-26 10:07:06 +09:00
sha256 Merge branch 'ew/hash-with-openssl-evp' 2023-08-09 16:18:15 -07:00
t upload-pack: disallow object-info capability by default 2024-02-28 14:42:01 -08:00
templates Merge branch 'jp/use-diff-index-in-pre-commit-sample' into maint-2.43 2024-02-08 16:22:02 -08:00
trace2 Merge branch 'en/header-cleanup' into maint-2.43 2024-02-08 16:22:10 -08:00
xdiff
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.cirrus.yml Merge branch 'cb/use-freebsd-13-2-at-cirrus-ci' 2024-02-06 14:31:22 -08:00
.clang-format clang-format: fix typo in comment 2023-11-01 12:24:19 +09:00
.editorconfig
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.gitattributes
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.gitignore replay: introduce new builtin 2023-11-26 10:10:48 +09:00
.gitlab-ci.yml ci: add macOS jobs to GitLab CI 2024-01-18 11:53:17 -08:00
.gitmodules
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.mailmap mailmap: change primary address for Derrick Stolee 2023-10-12 10:59:36 -07:00
.tsan-suppressions
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CODE_OF_CONDUCT.md CoC: whitespace fix 2024-01-23 10:40:10 -08:00
COPYING
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GIT-VERSION-GEN Git 2.43.3 2024-02-22 16:14:53 -08:00
INSTALL Merge branch 'js/update-urls-in-doc-and-comment' into maint-2.43 2024-02-08 16:22:01 -08:00
LGPL-2.1
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Makefile Merge branch 'js/update-urls-in-doc-and-comment' into maint-2.43 2024-02-08 16:22:01 -08:00
README.md Merge branch 'jc/majordomo-to-subspace' into maint-2.43 2024-02-13 14:44:50 -08:00
RelNotes Git 2.43.3 2024-02-22 16:13:38 -08:00
SECURITY.md
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abspath.c
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abspath.h
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aclocal.m4
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add-interactive.c Merge branch 'jk/unused-post-2.42' 2023-09-07 15:06:07 -07:00
add-interactive.h
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add-patch.c treewide: remove unnecessary includes in source files 2023-12-26 12:04:31 -08:00
advice.c advice: allow disabling the automatic hint in advise_if_enabled() 2024-01-16 13:07:00 -08:00
advice.h branch: make the advice to force-deleting a conditional one 2024-01-11 17:15:54 -08:00
alias.c Merge branch 'cw/compat-util-header-cleanup' 2023-07-17 11:30:42 -07:00
alias.h
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alloc.c
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alloc.h
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apply.c treewide: remove unnecessary includes in source files 2023-12-26 12:04:31 -08:00
apply.h
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archive-tar.c archive.h: remove unnecessary include 2023-12-26 12:04:31 -08:00
archive-zip.c archive.h: remove unnecessary include 2023-12-26 12:04:31 -08:00
archive.c Merge branch 'en/header-cleanup' into maint-2.43 2024-02-08 16:22:10 -08:00
archive.h archive.h: remove unnecessary include 2023-12-26 12:04:31 -08:00
attr.c attr: add builtin objectmode values support 2023-12-28 13:21:52 -08:00
attr.h attr: add attr.tree for setting the treeish to read attributes from 2023-10-13 11:43:29 -07:00
banned.h
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base85.c
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base85.h
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bisect.c Merge branch 'js/check-null-from-read-object-file' 2024-02-14 15:36:06 -08:00
bisect.h
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blame.c blame.h: remove unnecessary includes 2023-12-26 12:04:32 -08:00
blame.h blame.h: remove unnecessary includes 2023-12-26 12:04:32 -08:00
blob.c treewide: remove unnecessary includes in source files 2023-12-26 12:04:31 -08:00
blob.h
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bloom.c treewide: remove unnecessary includes in source files 2023-12-26 12:04:31 -08:00
bloom.h
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branch.c Merge branch 'rj/status-bisect-while-rebase' into maint-2.43 2024-02-08 16:22:04 -08:00
branch.h
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builtin.h replay: introduce new builtin 2023-11-26 10:10:48 +09:00
bulk-checkin.c treewide: remove unnecessary includes in source files 2023-12-26 12:04:31 -08:00
bulk-checkin.h bulk-checkin: only support blobs in index_bulk_checkin 2023-09-26 10:17:56 -07:00
bundle-uri.c treewide: remove unnecessary includes in source files 2023-12-26 12:04:31 -08:00
bundle-uri.h
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bundle.c Merge branch 'dk/bundle-i18n-more' 2023-07-25 12:05:24 -07:00
bundle.h
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cache-tree.c treewide: remove unnecessary includes in source files 2023-12-26 12:04:31 -08:00
cache-tree.h
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cbtree.c
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cbtree.h
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chdir-notify.c
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chdir-notify.h
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check-builtins.sh
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checkout.c
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checkout.h
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chunk-format.c chunk-format: drop pair_chunk_unsafe() 2023-10-09 15:55:02 -07:00
chunk-format.h chunk-format: drop pair_chunk_unsafe() 2023-10-09 15:55:02 -07:00
color.c hex-ll: separate out non-hash-algo functions 2023-09-29 15:14:56 -07:00
color.h
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column.c
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column.h
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combine-diff.c Merge branch 'js/check-null-from-read-object-file' 2024-02-14 15:36:06 -08:00
command-list.txt replay: introduce new builtin 2023-11-26 10:10:48 +09:00
commit-graph.c Merge branch 'en/header-cleanup' into maint-2.43 2024-02-08 16:22:10 -08:00
commit-graph.h Merge branch 'ps/do-not-trust-commit-graph-blindly-for-existence' 2023-11-08 11:03:59 +09:00
commit-reach.c treewide: remove unnecessary includes in source files 2023-12-26 12:04:31 -08:00
commit-reach.h
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commit-slab-decl.h
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commit-slab-impl.h
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commit-slab.h
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commit.c Merge branch 'en/header-cleanup' into maint-2.43 2024-02-08 16:22:10 -08:00
commit.h commit: ignore_non_trailer computes number of bytes to ignore 2023-10-20 14:25:12 -07:00
common-main.c
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config.c Merge branch 'en/header-cleanup' into maint-2.43 2024-02-08 16:22:10 -08:00
config.h config: factor out global config file retrieval 2024-01-18 12:17:41 -08:00
config.mak.dev
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config.mak.in
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config.mak.uname Makefile: detect new Homebrew location for ARM-based Macs 2024-01-18 11:53:17 -08:00
configure.ac global: convert trivial usages of `test <expr> -a/-o <expr>` 2023-11-11 09:21:00 +09:00
connect.c
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connect.h
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connected.c
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connected.h
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convert.c Merge branch 'cw/compat-util-header-cleanup' 2023-07-17 11:30:42 -07:00
convert.h config: use git_config_string() for core.checkRoundTripEncoding 2023-12-09 08:26:22 +09:00
copy.c
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copy.h
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credential.c credential: mark unused parameter in urlmatch callback 2023-08-29 17:56:26 -07:00
credential.h
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csum-file.c Merge branch 'ew/hash-with-openssl-evp' 2023-09-13 10:07:57 -07:00
csum-file.h
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ctype.c
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daemon.c daemon: free listen_addr before returning 2023-10-05 14:54:58 -07:00
date.c
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date.h
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decorate.c decorate: add clear_decoration() function 2023-10-05 14:54:55 -07:00
decorate.h decorate: add clear_decoration() function 2023-10-05 14:54:55 -07:00
delta-islands.c treewide: remove unnecessary includes in source files 2023-12-26 12:04:31 -08:00
delta-islands.h
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delta.h
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detect-compiler
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diagnose.c dir.[ch]: add 'follow_symlink' arg to 'get_dtype' 2023-10-09 15:53:13 -07:00
diagnose.h
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diff-delta.c
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diff-lib.c Merge branch 'en/header-cleanup' 2024-01-08 14:05:15 -08:00
diff-merges.c diff-merges: introduce '--dd' option 2023-10-09 12:47:29 -07:00
diff-merges.h
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diff-no-index.c treewide: remove unnecessary includes in source files 2023-12-26 12:04:31 -08:00
diff.c Merge branch 'jx/dirstat-parseopt-help' 2024-02-15 15:14:48 -08:00
diff.h diff --stat: set the width defaults in a helper function 2023-09-29 15:46:06 -07:00
diffcore-break.c treewide: remove unnecessary includes in source files 2023-12-26 12:04:31 -08:00
diffcore-delta.c Merge branch 'en/diffcore-delta-final-line-fix' into maint-2.43 2024-02-13 14:44:48 -08:00
diffcore-order.c
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diffcore-pickaxe.c
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diffcore-rename.c
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diffcore-rotate.c
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diffcore.h
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dir-iterator.c
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dir-iterator.h
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dir.c Merge branch 'en/header-cleanup' 2024-01-08 14:05:15 -08:00
dir.h dir.[ch]: add 'follow_symlink' arg to 'get_dtype' 2023-10-09 15:53:13 -07:00
editor.c
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editor.h
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entry.c treewide: remove unnecessary includes in source files 2023-12-26 12:04:31 -08:00
entry.h wrapper: reduce scope of remove_or_warn() 2023-09-29 15:14:56 -07:00
environment.c config: use git_config_string() for core.checkRoundTripEncoding 2023-12-09 08:26:22 +09:00
environment.h add core.maxTreeDepth config 2023-08-31 15:51:07 -07:00
exec-cmd.c treewide: remove unnecessary includes in source files 2023-12-26 12:04:31 -08:00
exec-cmd.h
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fetch-negotiator.c
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fetch-negotiator.h
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fetch-pack.c Merge branch 'sd/negotiate-trace-fix' into maint-2.43 2024-02-13 14:44:50 -08:00
fetch-pack.h treewide: remove unnecessary includes from header files 2023-12-26 12:04:31 -08:00
fmt-merge-msg.c Merge branch 'cw/compat-util-header-cleanup' 2023-07-17 11:30:42 -07:00
fmt-merge-msg.h
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fsck.c Merge branch 'en/header-cleanup' into maint-2.43 2024-02-08 16:22:10 -08:00
fsck.h fsck: detect very large tree pathnames 2023-08-31 15:51:07 -07:00
fsmonitor--daemon.h fsmonitor--daemon.h: remove unnecessary includes 2023-12-26 12:04:32 -08:00
fsmonitor-ipc.c treewide: remove unnecessary includes in source files 2023-12-26 12:04:33 -08:00
fsmonitor-ipc.h
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fsmonitor-ll.h
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fsmonitor-path-utils.h
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fsmonitor-settings.c fsmonitor: mark some maybe-unused parameters 2023-09-18 15:56:14 -07:00
fsmonitor-settings.h
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fsmonitor.c
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fsmonitor.h
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generate-cmdlist.sh
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generate-configlist.sh
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generate-hooklist.sh
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gettext.c treewide: remove unnecessary includes in source files 2023-12-26 12:04:31 -08:00
gettext.h
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git-archimport.perl perl: bump the required Perl version to 5.8.1 from 5.8.0 2023-11-17 07:26:32 +09:00
git-compat-util.h Merge branch 'tb/multi-pack-verbatim-reuse' 2024-01-12 16:09:56 -08:00
git-curl-compat.h
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git-cvsexportcommit.perl perl: bump the required Perl version to 5.8.1 from 5.8.0 2023-11-17 07:26:32 +09:00
git-cvsimport.perl Merge branch 'js/update-urls-in-doc-and-comment' into maint-2.43 2024-02-08 16:22:01 -08:00
git-cvsserver.perl perl: bump the required Perl version to 5.8.1 from 5.8.0 2023-11-17 07:26:32 +09:00
git-difftool--helper.sh
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git-filter-branch.sh
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git-instaweb.sh doc: switch links to https 2023-11-26 10:07:05 +09:00
git-merge-octopus.sh
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git-merge-one-file.sh
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git-merge-resolve.sh
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git-mergetool--lib.sh
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git-mergetool.sh
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git-p4.py Merge branch 'jt/p4-spell-re-with-raw-string' 2024-02-06 14:31:20 -08:00
git-quiltimport.sh
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git-request-pull.sh
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git-send-email.perl Merge branch 'tz/send-email-negatable-options' into maint-2.43 2024-02-08 16:22:01 -08:00
git-sh-i18n.sh
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git-sh-setup.sh
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git-submodule.sh
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git-svn.perl Merge branch 'tz/send-email-negatable-options' into maint-2.43 2024-02-08 16:22:01 -08:00
git-web--browse.sh
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git-zlib.c
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git-zlib.h
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git.c replay: introduce new builtin 2023-11-26 10:10:48 +09:00
git.rc
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gpg-interface.c Merge branch 'jc/sign-buffer-failure-propagation-fix' into maint-2.43 2024-02-13 14:44:48 -08:00
gpg-interface.h tag: fix sign_buffer() call to create a signed tag 2024-02-07 10:47:25 -08:00
graph.c diff --stat: add config option to limit filename width 2023-09-18 09:39:07 -07:00
graph.h doc: switch links to https 2023-11-26 10:07:05 +09:00
grep.c treewide: remove unnecessary includes in source files 2023-12-26 12:04:31 -08:00
grep.h
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hash-ll.h Merge branch 'ew/hash-with-openssl-evp' 2023-08-09 16:18:15 -07:00
hash-lookup.c
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hash-lookup.h
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hash.h
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hashmap.c
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hashmap.h
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help.c help: handle NULL value for alias.* config 2023-12-09 08:24:47 +09:00
help.h
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hex-ll.c hex-ll: separate out non-hash-algo functions 2023-09-29 15:14:56 -07:00
hex-ll.h hex-ll: separate out non-hash-algo functions 2023-09-29 15:14:56 -07:00
hex.c hex-ll: separate out non-hash-algo functions 2023-09-29 15:14:56 -07:00
hex.h hex-ll: separate out non-hash-algo functions 2023-09-29 15:14:56 -07:00
hook.c
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hook.h
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http-backend.c http-backend: new rpc-service for git-upload-archive 2024-01-22 07:54:37 -08:00
http-fetch.c http.h: remove unnecessary include 2023-12-26 12:04:32 -08:00
http-push.c Merge branch 'es/some-up-to-date-messages-must-stay' 2024-01-26 08:54:45 -08:00
http-walker.c treewide: remove unnecessary includes in source files 2023-12-26 12:04:31 -08:00
http.c Merge branch 'en/header-cleanup' into maint-2.43 2024-02-08 16:22:10 -08:00
http.h http.h: remove unnecessary include 2023-12-26 12:04:32 -08:00
ident.c Merge branch 'bc/ident-dot-is-no-longer-crud-letter' 2023-08-09 16:18:15 -07:00
ident.h
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imap-send.c Merge branch 'pb/imap-send-wo-curl-build-fix' into maint-2.43 2024-02-12 09:57:59 -08:00
iterator.h
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json-writer.c
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json-writer.h doc: switch links to https 2023-11-26 10:07:05 +09:00
khash.h
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kwset.c doc: switch links to https 2023-11-26 10:07:05 +09:00
kwset.h doc: switch links to https 2023-11-26 10:07:05 +09:00
levenshtein.c
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levenshtein.h
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line-log.c treewide: remove unnecessary includes in source files 2023-12-26 12:04:33 -08:00
line-log.h line-log.h: remove unnecessary include 2023-12-26 12:04:32 -08:00
line-range.c treewide: remove unnecessary includes in source files 2023-12-26 12:04:31 -08:00
line-range.h
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linear-assignment.c
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linear-assignment.h
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list-objects-filter-options.c treewide: remove unnecessary includes in source files 2023-12-26 12:04:31 -08:00
list-objects-filter-options.h
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list-objects-filter.c treewide: remove unnecessary includes in source files 2023-12-26 12:04:31 -08:00
list-objects-filter.h
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list-objects.c Merge branch 'tb/rev-list-unpacked-fix' 2023-11-08 15:04:42 +09:00
list-objects.h
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list.h doc: switch links to https 2023-11-26 10:07:05 +09:00
lockfile.c
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lockfile.h
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log-tree.c line-log.h: remove unnecessary include 2023-12-26 12:04:32 -08:00
log-tree.h pretty: add pointer and tag options to %(decorate) 2023-08-21 11:40:10 -07:00
ls-refs.c treewide: remove unnecessary includes in source files 2023-12-26 12:04:31 -08:00
ls-refs.h
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mailinfo.c Merge branch 'jk/mailinfo-iterative-unquote-comment' into maint-2.43 2024-02-08 16:22:03 -08:00
mailinfo.h
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mailmap.c
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mailmap.h
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match-trees.c
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match-trees.h
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mem-pool.c mem-pool: simplify alignment calculation 2023-12-28 12:22:58 -08:00
mem-pool.h
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merge-blobs.c treewide: remove unnecessary includes in source files 2023-12-26 12:04:31 -08:00
merge-blobs.h
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merge-ll.c merge-ll: expose revision names to custom drivers 2024-01-24 13:15:06 -08:00
merge-ll.h
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merge-ort-wrappers.c
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merge-ort-wrappers.h
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merge-ort.c Merge branch 'jc/comment-style-fixes' into maint-2.43 2024-02-13 14:44:48 -08:00
merge-ort.h
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merge-recursive.c treewide: remove unnecessary includes in source files 2023-12-26 12:04:31 -08:00
merge-recursive.h merge: introduce {copy|clear}_merge_options() 2023-10-11 13:37:47 -07:00
merge.c treewide: remove unnecessary includes in source files 2023-12-26 12:04:31 -08:00
merge.h
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mergesort.h
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midx.c midx: implement `midx_preferred_pack()` 2023-12-14 14:38:08 -08:00
midx.h Merge branch 'tb/multi-pack-verbatim-reuse' 2024-01-12 16:09:56 -08:00
name-hash.c
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name-hash.h
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neue attr: add builtin objectmode values support 2023-12-28 13:21:52 -08:00
notes-cache.c
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notes-cache.h
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notes-merge.c
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notes-merge.h
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notes-utils.c Merge branch 'en/header-cleanup' into maint-2.43 2024-02-08 16:22:10 -08:00
notes-utils.h
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notes.c treewide: remove unnecessary includes in source files 2023-12-26 12:04:31 -08:00
notes.h
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object-file.c treewide: remove unnecessary includes in source files 2023-12-26 12:04:31 -08:00
object-file.h
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object-name.c treewide: remove unnecessary includes in source files 2023-12-26 12:04:31 -08:00
object-name.h
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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
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object.h
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oid-array.c
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oid-array.h
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oidmap.c
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oidmap.h
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oidset.c
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oidset.h
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oidtree.c
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oidtree.h
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pack-bitmap-write.c Merge branch 'tb/multi-pack-verbatim-reuse' 2024-01-12 16:09:56 -08:00
pack-bitmap.c Merge branch 'tb/pack-bitmap-drop-unused-struct-member' 2024-02-06 14:31:20 -08:00
pack-bitmap.h pack-bitmap: enable reuse from all bitmapped packs 2023-12-14 14:38:09 -08:00
pack-check.c treewide: remove unnecessary includes in source files 2023-12-26 12:04:31 -08:00
pack-mtimes.c
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pack-mtimes.h
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pack-objects.c pack-objects: free packing_data in more places 2023-12-14 14:38:07 -08:00
pack-objects.h pack-objects: free packing_data in more places 2023-12-14 14:38:07 -08:00
pack-revindex.c pack-revindex: implement `midx_pair_to_pack_pos()` 2023-12-14 14:38:08 -08:00
pack-revindex.h pack-revindex: implement `midx_pair_to_pack_pos()` 2023-12-14 14:38:08 -08:00
pack-write.c treewide: remove unnecessary includes in source files 2023-12-26 12:04:31 -08:00
pack.h
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packfile.c treewide: remove unnecessary includes in source files 2023-12-26 12:04:31 -08:00
packfile.h packfile.c: fix a typo in `each_file_in_pack_dir_fn()`'s declaration 2023-11-20 08:15:50 +09:00
pager.c
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pager.h
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parallel-checkout.c
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parallel-checkout.h
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parse-options-cb.c parse-options: mark unused parameters in noop callback 2023-09-05 14:48:17 -07:00
parse-options.c Merge branch 'rs/parse-options-with-keep-unknown-abbrev-fix' into maint-2.43 2024-02-13 14:44:48 -08:00
parse-options.h parse-options: make CMDMODE errors more precise 2023-10-29 09:15:18 +09:00
parse.c parse: separate out parsing functions from config.h 2023-09-29 15:14:57 -07:00
parse.h parse: separate out parsing functions from config.h 2023-09-29 15:14:57 -07:00
patch-delta.c
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patch-ids.c treewide: remove unnecessary includes in source files 2023-12-26 12:04:31 -08:00
patch-ids.h
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path.c refs: convert MERGE_AUTOSTASH to become a normal pseudo-ref 2024-01-19 11:10:41 -08:00
path.h refs: convert MERGE_AUTOSTASH to become a normal pseudo-ref 2024-01-19 11:10:41 -08:00
pathspec.c attr: enable attr pathspec magic for git-add and git-stash 2023-11-04 17:00:27 +09:00
pathspec.h
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pkt-line.c Merge branch 'jx/sideband-chomp-newline-fix' into maint-2.43 2024-02-08 16:22:11 -08:00
pkt-line.h Merge branch 'jx/sideband-chomp-newline-fix' into maint-2.43 2024-02-08 16:22:11 -08:00
preload-index.c parse: separate out parsing functions from config.h 2023-09-29 15:14:57 -07:00
preload-index.h
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pretty.c pretty: fix ref filtering for %(decorate) formats 2023-10-09 11:25:13 -07:00
pretty.h
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prio-queue.c
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prio-queue.h
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progress.c parse: separate out parsing functions from config.h 2023-09-29 15:14:57 -07:00
progress.h
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promisor-remote.c
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promisor-remote.h
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prompt.c parse: separate out parsing functions from config.h 2023-09-29 15:14:57 -07:00
prompt.h
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protocol-caps.c treewide: remove unnecessary includes in source files 2023-12-26 12:04:31 -08:00
protocol-caps.h
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protocol.c
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protocol.h doc: switch links to https 2023-11-26 10:07:05 +09:00
prune-packed.c
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prune-packed.h
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quote.c
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quote.h
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range-diff.c Merge branch 'kh/range-diff-notes' 2023-09-29 09:04:15 -07:00
range-diff.h
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reachable.c prune: mark rebase autostash and orig-head as reachable 2024-02-09 10:04:59 -08:00
reachable.h
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read-cache-ll.h cache: add fake_lstat() 2023-09-15 17:08:46 -07:00
read-cache.c Merge branch 'en/header-cleanup' 2024-01-08 14:05:15 -08:00
read-cache.h
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rebase-interactive.c Merge branch 'cw/compat-util-header-cleanup' 2023-07-17 11:30:42 -07:00
rebase-interactive.h
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rebase.c parse: separate out parsing functions from config.h 2023-09-29 15:14:57 -07:00
rebase.h
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ref-filter.c Merge branch 'en/header-cleanup' into maint-2.43 2024-02-08 16:22:10 -08:00
ref-filter.h Merge branch 'en/header-cleanup' 2024-01-08 14:05:15 -08:00
reflog-walk.c
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reflog-walk.h
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reflog.c treewide: remove unnecessary includes in source files 2023-12-26 12:04:31 -08:00
reflog.h
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refs.c Merge branch 'ps/not-so-many-refs-are-special' 2024-01-29 16:03:00 -08:00
refs.h Merge branch 'ps/worktree-refdb-initialization' 2024-01-26 08:54:46 -08:00
refspec.c
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refspec.h
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remote-curl.c Merge branch 'jx/remote-archive-over-smart-http' 2024-01-30 13:34:12 -08:00
remote.c Merge branch 'en/header-cleanup' 2024-01-08 14:05:15 -08:00
remote.h Merge branch 'jc/retire-cas-opt-name-constant' into maint-2.43 2024-02-08 16:22:09 -08:00
replace-object.c
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replace-object.h
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repo-settings.c pack-objects: enable multi-pack reuse via `feature.experimental` 2024-02-05 15:27:01 -08:00
repository.c refs: convert MERGE_AUTOSTASH to become a normal pseudo-ref 2024-01-19 11:10:41 -08:00
repository.h pack-objects: enable multi-pack reuse via `feature.experimental` 2024-02-05 15:27:01 -08:00
rerere.c Merge branch 'js/check-null-from-read-object-file' 2024-02-14 15:36:06 -08:00
rerere.h
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reset.c treewide: remove unnecessary includes in source files 2023-12-26 12:04:31 -08:00
reset.h
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resolve-undo.c Merge branch 'jc/unresolve-removal' 2023-10-02 11:20:00 -07:00
resolve-undo.h checkout: allow "checkout -m path" to unmerge removed paths 2023-07-31 16:16:44 -07:00
revision.c Merge branch 'en/header-cleanup' into maint-2.43 2024-02-08 16:22:10 -08:00
revision.h rev-list: add commit object support in `--missing` option 2023-11-01 12:07:18 +09:00
run-command.c treewide: remove unnecessary includes in source files 2023-12-26 12:04:31 -08:00
run-command.h
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sane-ctype.h
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scalar.c Merge branch 'ds/scalar-updates' into maint-2.42 2023-11-02 16:53:15 +09:00
send-pack.c treewide: remove unnecessary includes in source files 2023-12-26 12:04:31 -08:00
send-pack.h
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sequencer.c Merge branch 'vn/rebase-with-cherry-pick-authorship' 2024-02-14 15:36:05 -08:00
sequencer.h sequencer: introduce functions to handle autostashes via refs 2024-01-19 11:10:41 -08:00
serve.c upload-pack: disallow object-info capability by default 2024-02-28 14:42:01 -08:00
serve.h
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server-info.c
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server-info.h
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setup.c Merge branch 'en/header-cleanup' into maint-2.43 2024-02-08 16:22:10 -08:00
setup.h setup: introduce "extensions.refStorage" extension 2024-01-02 09:24:48 -08:00
sh-i18n--envsubst.c doc: switch links to https 2023-11-26 10:07:05 +09:00
sha1dc_git.c
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sha1dc_git.h
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shallow.c treewide: remove unnecessary includes in source files 2023-12-26 12:04:31 -08:00
shallow.h
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shared.mak Makefile: simplify output of the libpath_template 2024-01-31 14:43:00 -08:00
shell.c treewide: remove unnecessary includes in source files 2023-12-26 12:04:31 -08:00
shortlog.h
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sideband.c Merge branch 'cp/sideband-array-index-comment-fix' into maint-2.43 2024-02-08 16:22:12 -08:00
sideband.h
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sigchain.c
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sigchain.h
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simple-ipc.h
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sparse-index.c Merge branch 'jh/sparse-index-expand-to-path-fix' 2024-02-08 13:20:34 -08:00
sparse-index.h
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split-index.c
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split-index.h
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stable-qsort.c
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statinfo.c Merge branch 'jc/fake-lstat' 2023-12-27 14:52:24 -08:00
statinfo.h cache: add fake_lstat() 2023-09-15 17:08:46 -07:00
strbuf.c hex-ll: separate out non-hash-algo functions 2023-09-29 15:14:56 -07:00
strbuf.h doc: fix some typos, grammar and wording issues 2023-10-05 12:55:38 -07:00
streaming.c
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streaming.h
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string-list.c
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string-list.h
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strmap.c
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strmap.h
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strvec.c strvec: drop unnecessary include of hex.h 2023-11-03 08:26:55 +09:00
strvec.h strvec: use correct member name in comments 2024-01-12 13:38:07 -08:00
sub-process.c
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sub-process.h
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submodule-config.c Merge branch 'vd/fsck-submodule-url-test' 2024-01-26 08:54:47 -08:00
submodule-config.h Merge branch 'vd/fsck-submodule-url-test' 2024-01-26 08:54:47 -08:00
submodule.c treewide: remove unnecessary includes in source files 2023-12-26 12:04:31 -08:00
submodule.h
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symlinks.c
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symlinks.h
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tag.c
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tag.h
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tar.h
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tempfile.c Merge branch 'cw/compat-util-header-cleanup' 2023-07-17 11:30:42 -07:00
tempfile.h
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thread-utils.c
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thread-utils.h
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tmp-objdir.c treewide: remove unnecessary includes in source files 2023-12-26 12:04:31 -08:00
tmp-objdir.h
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trace.c doc: switch links to https 2023-11-26 10:07:05 +09:00
trace.h
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trace2.c Merge branch 'en/header-cleanup' into maint-2.43 2024-02-08 16:22:10 -08:00
trace2.h trace2: fix signature of trace2_def_param() macro 2023-11-23 10:30:32 +09:00
trailer.c Merge branch 'la/trailer-cleanups' into maint-2.43 2024-02-22 16:09:45 -08:00
trailer.h trailer: use offsets for trailer_start/trailer_end 2023-12-20 11:55:04 -08:00
transport-helper.c Merge branch 'jk/fetch-auto-tag-following-fix' 2024-02-02 11:31:51 -08:00
transport-internal.h
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transport.c Merge branch 'es/some-up-to-date-messages-must-stay' 2024-01-26 08:54:45 -08:00
transport.h
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tree-diff.c tree-diff: respect max_allowed_tree_depth 2023-08-31 15:51:08 -07:00
tree-walk.c traverse_trees(): respect max_allowed_tree_depth 2023-08-31 15:51:08 -07:00
tree-walk.h tree-walk: drop MAX_TRAVERSE_TREES macro 2023-08-31 15:51:07 -07:00
tree.c treewide: remove unnecessary includes in source files 2023-12-26 12:04:31 -08:00
tree.h read_tree(): respect max_allowed_tree_depth 2023-08-31 15:51:08 -07:00
unicode-width.h unicode: update the width tables to Unicode 15.1 2023-09-25 16:17:28 -07:00
unimplemented.sh
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unix-socket.c
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unix-socket.h
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unix-stream-server.c
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unix-stream-server.h
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unpack-trees.c Merge branch 'cw/prelim-cleanup' 2023-10-10 11:39:14 -07:00
unpack-trees.h tree-walk: drop MAX_TRAVERSE_TREES macro 2023-08-31 15:51:07 -07:00
upload-pack.c upload-pack: always turn off save_commit_buffer 2024-02-28 14:42:01 -08:00
upload-pack.h
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url.c hex-ll: separate out non-hash-algo functions 2023-09-29 15:14:56 -07:00
url.h
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urlmatch.c hex-ll: separate out non-hash-algo functions 2023-09-29 15:14:56 -07:00
urlmatch.h
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usage.c
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userdiff.c
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userdiff.h
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utf8.c doc: switch links to https 2023-11-26 10:07:05 +09:00
utf8.h doc: switch links to https 2023-11-26 10:07:05 +09:00
varint.c
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varint.h
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version.c
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version.h
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versioncmp.c
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versioncmp.h
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walker.c
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walker.h
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wildmatch.c
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wildmatch.h
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worktree.c Merge branch 'rj/status-bisect-while-rebase' into maint-2.43 2024-02-08 16:22:04 -08:00
worktree.h worktree: expose interface to look up worktree by name 2024-01-08 13:17:30 -08:00
wrap-for-bin.sh
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wrapper.c treewide: remove unnecessary includes in source files 2023-12-26 12:04:31 -08:00
wrapper.h wrapper: reduce scope of remove_or_warn() 2023-09-29 15:14:56 -07:00
write-or-die.c write-or-die: fix the polarity of GIT_FLUSH environment variable 2024-02-13 11:57:28 -08:00
write-or-die.h
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ws.c
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ws.h
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wt-status.c Merge branch 'rj/status-bisect-while-rebase' into maint-2.43 2024-02-08 16:22:04 -08:00
wt-status.h status: fix branch shown when not only bisecting 2023-10-16 15:05:27 -07:00
xdiff-interface.c Merge branch 'en/header-cleanup' into maint-2.43 2024-02-08 16:22:10 -08:00
xdiff-interface.h
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README.md

Build status

Git - fast, scalable, distributed revision control system

Git is a fast, scalable, distributed revision control system with an unusually rich command set that provides both high-level operations and full access to internals.

Git is an Open Source project covered by the GNU General Public License version 2 (some parts of it are under different licenses, compatible with the GPLv2). It was originally written by Linus Torvalds with help of a group of hackers around the net.

Please read the file INSTALL for installation instructions.

Many Git online resources are accessible from https://git-scm.com/ including full documentation and Git related tools.

See Documentation/gittutorial.txt to get started, then see Documentation/giteveryday.txt for a useful minimum set of commands, and Documentation/git-<commandname>.txt for documentation of each command. If git has been correctly installed, then the tutorial can also be read with man gittutorial or git help tutorial, and the documentation of each command with man git-<commandname> or git help <commandname>.

CVS users may also want to read Documentation/gitcvs-migration.txt (man gitcvs-migration or git help cvs-migration if git is installed).

The user discussion and development of Git take place on the Git mailing list -- everyone is welcome to post bug reports, feature requests, comments and patches to git@vger.kernel.org (read Documentation/SubmittingPatches for instructions on patch submission 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