A fork of Git containing Microsoft-specific patches.
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Taylor Blau 37b9dcabfc shallow.c: use '{commit,rollback}_shallow_file'
In bd0b42aed3 (fetch-pack: do not take shallow lock unnecessarily,
2019-01-10), the author noted that 'is_repository_shallow' produces
visible side-effect(s) by setting 'is_shallow' and 'shallow_stat'.

This is a problem for e.g., fetching with '--update-shallow' in a
shallow repository with 'fetch.writeCommitGraph' enabled, since the
update to '.git/shallow' will cause Git to think that the repository
isn't shallow when it is, thereby circumventing the commit-graph
compatibility check.

This causes problems in shallow repositories with at least shallow refs
that have at least one ancestor (since the client won't have those
objects, and therefore can't take the reachability closure over commits
when writing a commit-graph).

Address this by introducing thin wrappers over 'commit_lock_file' and
'rollback_lock_file' for use specifically when the lock is held over
'.git/shallow'. These wrappers (appropriately called
'commit_shallow_file' and 'rollback_shallow_file') call into their
respective functions in 'lockfile.h', but additionally reset validity
checks used by the shallow machinery.

Replace each instance of 'commit_lock_file' and 'rollback_lock_file'
with 'commit_shallow_file' and 'rollback_shallow_file' when the lock
being held is over the '.git/shallow' file.

As a result, 'prune_shallow' can now only be called once (since
'check_shallow_file_for_update' will die after calling
'reset_repository_shallow'). But, this is OK since we only call
'prune_shallow' at most once per process.

Helped-by: Jonathan Tan <jonathantanmy@google.com>
Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Reviewed-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-04-24 13:56:39 -07:00
.github
Documentation RelNotes/2.26.0: fix various typos 2020-03-18 15:42:37 -07:00
block-sha1
builtin shallow.c: use '{commit,rollback}_shallow_file' 2020-04-24 13:56:39 -07:00
ci Merge branch 'js/ci-windows-update' 2020-03-05 10:43:04 -08:00
compat Merge branch 'js/mingw-open-in-gdb' into maint 2020-03-17 15:02:25 -07:00
contrib Merge branch 'kk/complete-diff-color-moved' 2020-03-09 11:21:20 -07:00
ewah Merge branch 'jk/object-filter-with-bitmap' 2020-03-02 15:07:18 -08:00
git-gui Merge https://github.com/prati0100/git-gui 2020-03-19 16:06:51 -07:00
gitk-git
gitweb Merge branch 'do/gitweb-typofix-in-comments' 2020-01-08 12:44:11 -08:00
mergetools
negotiator
perl
po l10n: tr.po: change file mode to 644 2020-03-21 18:26:56 +08:00
ppc
refs C: use skip_prefix() to avoid hardcoded string length 2020-01-31 13:03:45 -08:00
sha1collisiondetection@855827c583
sha1dc
sha256
t shallow.c: use '{commit,rollback}_shallow_file' 2020-04-24 13:56:39 -07:00
templates Merge branch 'kw/fsmonitor-watchman-racefix' 2020-02-14 12:54:20 -08:00
trace2
vcs-svn
xdiff
.cirrus.yml CI: add FreeBSD CI support via Cirrus-CI 2019-12-20 12:09:12 -08:00
.clang-format
.editorconfig editorconfig: indent text files with tabs 2020-01-06 08:46:32 -08:00
.gitattributes
.gitignore
.gitmodules
.mailmap Merge branch 'bc/wildcard-credential' 2020-03-05 10:43:02 -08:00
.travis.yml
.tsan-suppressions replace-object: make replace operations thread-safe 2020-01-17 13:52:14 -08:00
CODE_OF_CONDUCT.md
COPYING
GIT-VERSION-GEN Git 2.26 2020-03-22 16:50:46 -07:00
INSTALL
LGPL-2.1
Makefile Merge branch 'bw/remote-rename-update-config' 2020-02-25 11:18:32 -08:00
README.md
RelNotes Git 2.25.2 2020-03-17 15:06:37 -07:00
abspath.c
aclocal.m4
add-interactive.c Merge branch 'js/builtin-add-i-cmds' into maint 2020-03-17 15:02:20 -07:00
add-interactive.h built-in add -p: respect the `interactive.singlekey` config setting 2020-01-15 12:06:17 -08:00
add-patch.c built-in add -p: respect the `interactive.singlekey` config setting 2020-01-15 12:06:17 -08:00
advice.c add: change advice config variables used by the add API 2020-02-06 11:08:00 -08:00
advice.h add: change advice config variables used by the add API 2020-02-06 11:08:00 -08:00
alias.c
alias.h
alloc.c
alloc.h
apply.c sha1-file: pass git_hash_algo to hash_object_file() 2020-01-31 10:45:39 -08:00
apply.h
archive-tar.c streaming: allow open_istream() to handle any repo 2020-01-31 10:45:39 -08:00
archive-zip.c streaming: allow open_istream() to handle any repo 2020-01-31 10:45:39 -08:00
archive.c
archive.h
argv-array.c
argv-array.h
attr.c
attr.h
azure-pipelines.yml Azure Pipeline: switch to the latest agent pools 2020-02-27 09:58:43 -08:00
banned.h
base85.c
bisect.c bisect: libify `bisect_next_all` 2020-02-19 09:37:15 -08:00
bisect.h bisect: libify `bisect_next_all` 2020-02-19 09:37:15 -08:00
blame.c
blame.h blame: provide type of fingerprints pointer 2020-02-24 12:08:48 -08:00
blob.c
blob.h
branch.c
branch.h
builtin.h
bulk-checkin.c
bulk-checkin.h
bundle.c
bundle.h
cache-tree.c sha1-file: pass git_hash_algo to hash_object_file() 2020-01-31 10:45:39 -08:00
cache-tree.h
cache.h Merge branch 'mt/use-passed-repo-more-in-funcs' 2020-02-14 12:54:22 -08:00
chdir-notify.c
chdir-notify.h
check-builtins.sh
check_bindir
checkout.c
checkout.h
color.c color.c: alias RGB colors 8-15 to aixterm colors 2020-02-11 11:19:00 -08:00
color.h
column.c
column.h
combine-diff.c
command-list.txt Merge branch 'ds/sparse-cone' 2019-12-25 11:21:58 -08:00
commit-graph.c Merge branch 'rs/commit-graph-code-simplification' 2020-03-05 10:43:04 -08:00
commit-graph.h commit-graph.h: use odb in 'load_commit_graph_one_fd_st' 2020-02-04 11:36:51 -08:00
commit-reach.c
commit-reach.h
commit-slab-decl.h
commit-slab-impl.h
commit-slab.h
commit.c Merge branch 'rs/strbuf-insertstr' 2020-02-17 13:22:17 -08:00
commit.h shallow.c: use '{commit,rollback}_shallow_file' 2020-04-24 13:56:39 -07:00
common-main.c
config.c Merge branch 'bw/remote-rename-update-config' 2020-02-25 11:18:32 -08:00
config.h config: provide access to the current line number 2020-02-10 10:52:10 -08:00
config.mak.dev config.mak.dev: re-enable -Wformat-zero-length 2020-02-28 08:39:45 -08:00
config.mak.in
config.mak.uname
configure.ac
connect.c
connect.h
connected.c connected: verify promisor-ness of partial clone 2020-01-30 10:55:31 -08:00
connected.h connected: verify promisor-ness of partial clone 2020-01-30 10:55:31 -08:00
convert.c Merge branch 'mt/use-passed-repo-more-in-funcs' 2020-02-14 12:54:22 -08:00
convert.h
copy.c
credential-cache--daemon.c
credential-cache.c
credential-store.c
credential.c credential: allow wildcard patterns when matching config 2020-02-20 13:05:43 -08:00
credential.h Merge branch 'bc/wildcard-credential' 2020-03-05 10:43:02 -08:00
csum-file.c
csum-file.h csum-file: introduce hashfile_total() 2020-01-23 10:51:50 -08:00
ctype.c
daemon.c
date.c
decorate.c
decorate.h
delta-islands.c
delta-islands.h
delta.h
detect-compiler
diff-delta.c
diff-lib.c
diff-no-index.c
diff.c Merge branch 'mt/use-passed-repo-more-in-funcs' 2020-02-14 12:54:22 -08:00
diff.h
diffcore-break.c
diffcore-delta.c
diffcore-order.c
diffcore-pickaxe.c
diffcore-rename.c sha1-file: pass git_hash_algo to hash_object_file() 2020-01-31 10:45:39 -08:00
diffcore.h
dir-iterator.c
dir-iterator.h
dir.c Merge branch 'ds/sparse-add' 2020-03-05 10:43:02 -08:00
dir.h Merge branch 'ds/sparse-cone' 2019-12-25 11:21:58 -08:00
editor.c
entry.c
environment.c Merge branch 'ds/sparse-cone' 2019-12-25 11:21:58 -08:00
exec-cmd.c
exec-cmd.h
fast-import.c
fetch-negotiator.c
fetch-negotiator.h
fetch-pack.c shallow.c: use '{commit,rollback}_shallow_file' 2020-04-24 13:56:39 -07:00
fetch-pack.h
fmt-merge-msg.h
fsck.c
fsck.h
fsmonitor.c fsmonitor: handle version 2 of the hooks that will use opaque token 2020-01-13 14:58:43 -08:00
fsmonitor.h
fuzz-commit-graph.c
fuzz-pack-headers.c
fuzz-pack-idx.c
generate-cmdlist.sh
gettext.c
gettext.h
git-add--interactive.perl
git-archimport.perl
git-bisect.sh
git-compat-util.h
git-cvsexportcommit.perl
git-cvsimport.perl
git-cvsserver.perl
git-difftool--helper.sh
git-filter-branch.sh
git-instaweb.sh
git-legacy-stash.sh Merge branch 'js/patch-mode-in-others-in-c' 2020-02-05 14:34:58 -08:00
git-merge-octopus.sh
git-merge-one-file.sh
git-merge-resolve.sh
git-mergetool--lib.sh
git-mergetool.sh
git-p4.py git-p4: avoid leak of file handle when cloning 2020-01-30 12:21:13 -08:00
git-parse-remote.sh
git-quiltimport.sh
git-rebase--preserve-merges.sh
git-request-pull.sh
git-send-email.perl
git-sh-i18n.sh
git-sh-setup.sh
git-submodule.sh Merge branch 'es/recursive-single-branch-clone' 2020-03-05 10:43:03 -08:00
git-svn.perl
git-web--browse.sh
git.c
git.rc
gpg-interface.c Merge branch 'hi/gpg-use-check-signature' 2020-03-05 10:43:05 -08:00
gpg-interface.h Merge branch 'hi/gpg-use-check-signature' 2020-03-05 10:43:05 -08:00
graph.c graph: fix collapse of multiple edges 2020-01-15 12:14:51 -08:00
graph.h
grep.c grep: replace grep_read_mutex by internal obj read lock 2020-01-17 13:52:14 -08:00
grep.h grep: replace grep_read_mutex by internal obj read lock 2020-01-17 13:52:14 -08:00
hash.h
hashmap.c
hashmap.h
help.c
help.h
hex.c
http-backend.c
http-fetch.c
http-push.c
http-walker.c
http.c strbuf: add and use strbuf_insertstr() 2020-02-10 09:04:45 -08:00
http.h
ident.c
imap-send.c
interdiff.c
interdiff.h
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.h
list-objects-filter.c
list-objects-filter.h
list-objects.c
list-objects.h
list.h
ll-merge.c
ll-merge.h
lockfile.c
lockfile.h
log-tree.c Merge branch 'hd/show-one-mergetag-fix' into maint 2020-03-17 15:02:24 -07:00
log-tree.h
ls-refs.c
ls-refs.h
mailinfo.c Merge branch 'rs/micro-cleanups' 2020-03-02 15:07:20 -08:00
mailinfo.h
mailmap.c
mailmap.h
match-trees.c
mem-pool.c
mem-pool.h
merge-blobs.c
merge-blobs.h
merge-recursive.c Merge branch 'en/t3433-rebase-stat-dirty-failure' into maint 2020-03-17 15:02:23 -07:00
merge-recursive.h
merge.c
mergesort.c
mergesort.h
midx.c nth_packed_object_oid(): use customary integer return 2020-02-24 12:55:42 -08:00
midx.h
name-hash.c
notes-cache.c
notes-cache.h
notes-merge.c
notes-merge.h
notes-utils.c strbuf: add and use strbuf_insertstr() 2020-02-10 09:04:45 -08:00
notes-utils.h
notes.c Merge branch 'jh/notes-fanout-fix' into maint 2020-03-17 15:02:22 -07:00
notes.h Merge branch 'dl/format-patch-notes-config-fixup' 2019-12-25 11:21:58 -08:00
object-store.h packed_object_info(): use object_id for returning delta base 2020-02-24 12:55:53 -08:00
object.c Merge branch 'jk/object-filter-with-bitmap' 2020-03-02 15:07:18 -08:00
object.h pack-bitmap: fix leak of haves/wants object lists 2020-02-13 09:08:58 -08:00
oidmap.c
oidmap.h
oidset.c
oidset.h
pack-bitmap-write.c
pack-bitmap.c Merge branch 'jk/nth-packed-object-id' 2020-03-05 10:43:03 -08:00
pack-bitmap.h Merge branch 'jk/object-filter-with-bitmap' 2020-03-02 15:07:18 -08:00
pack-check.c pack-check: push oid lookup into loop 2020-02-24 12:55:53 -08:00
pack-objects.c pack-objects: convert oe_set_delta_ext() to use object_id 2020-02-24 12:55:52 -08:00
pack-objects.h pack-objects: convert oe_set_delta_ext() to use object_id 2020-02-24 12:55:52 -08:00
pack-revindex.c
pack-revindex.h
pack-write.c
pack.h
packfile.c packfile: drop nth_packed_object_sha1() 2020-02-24 12:55:53 -08:00
packfile.h packfile: drop nth_packed_object_sha1() 2020-02-24 12:55:53 -08:00
pager.c
parse-options-cb.c parse-options: simplify parse_options_dup() 2020-02-10 09:45:49 -08:00
parse-options.c Merge branch 'pb/am-show-current-patch' 2020-03-09 11:21:19 -07:00
parse-options.h Merge branch 'pb/am-show-current-patch' 2020-03-09 11:21:19 -07:00
patch-delta.c
patch-ids.c
patch-ids.h
path.c normalize_path_copy(): document "dst" size expectations 2020-01-30 13:45:58 -08:00
path.h
pathspec.c prefix_path: show gitdir if worktree unavailable 2020-03-15 09:35:46 -07:00
pathspec.h
pkt-line.c
pkt-line.h
preload-index.c
pretty.c Merge branch 'rs/strbuf-insertstr' 2020-02-17 13:22:17 -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.c fetch: default to protocol version 2 2020-01-15 14:03:55 -08:00
protocol.h
quote.c quote: use isalnum() to check for alphanumeric characters 2020-02-24 09:30:29 -08:00
quote.h
range-diff.c
range-diff.h
reachable.c pack-bitmap: basic noop bitmap filter infrastructure 2020-02-14 10:46:22 -08:00
reachable.h
read-cache.c Merge branch 'js/mingw-loosen-overstrict-tree-entry-checks' 2020-01-10 14:45:27 -08:00
rebase-interactive.c Merge branch 'rt/format-zero-length-fix' 2020-03-09 11:21:21 -07:00
rebase-interactive.h Merge branch 'en/rebase-backend' 2020-03-02 15:07:19 -08:00
rebase.c pull --rebase/remote rename: document and honor single-letter abbreviations rebase types 2020-02-10 10:52:10 -08:00
rebase.h pull --rebase/remote rename: document and honor single-letter abbreviations rebase types 2020-02-10 10:52:10 -08:00
ref-filter.c Merge branch 'dr/push-remote-ref-update' 2020-03-11 10:58:16 -07:00
ref-filter.h
reflog-walk.c
reflog-walk.h
refs.c
refs.h
refspec.c
refspec.h
remote-curl.c Merge branch 'rs/show-progress-in-dumb-http-fetch' 2020-03-09 11:21:21 -07:00
remote-testsvn.c
remote.c remote: drop "explicit" parameter from remote_ref_for_branch() 2020-03-03 14:56:05 -08:00
remote.h remote: drop "explicit" parameter from remote_ref_for_branch() 2020-03-03 14:56:05 -08:00
replace-object.c replace-object: make replace operations thread-safe 2020-01-17 13:52:14 -08:00
replace-object.h replace-object: make replace operations thread-safe 2020-01-17 13:52:14 -08:00
repo-settings.c
repository.c
repository.h
rerere.c
rerere.h
resolve-undo.c
resolve-undo.h
revision.c Merge branch 'dl/format-patch-notes-config-fixup' 2019-12-25 11:21:58 -08:00
revision.h Merge branch 'dl/format-patch-notes-config-fixup' 2019-12-25 11:21:58 -08:00
run-command.c Merge branch 'bc/run-command-nullness-after-free-fix' into maint 2020-02-14 12:42:27 -08:00
run-command.h run-command.h: fix mis-indented struct member 2020-02-22 09:05:34 -08:00
send-pack.c
send-pack.h
sequencer.c Merge branch 'js/rebase-i-with-colliding-hash' into maint 2020-03-17 15:02:21 -07:00
sequencer.h Merge branch 'en/rebase-backend' 2020-03-02 15:07:19 -08:00
serve.c
serve.h
server-info.c
setup.c Merge branch 'es/outside-repo-errmsg-hints' 2020-03-16 12:43:29 -07:00
sh-i18n--envsubst.c
sha1-array.c
sha1-array.h
sha1-file.c packed_object_info(): use object_id for returning delta base 2020-02-24 12:55:53 -08:00
sha1-lookup.c
sha1-lookup.h
sha1-name.c nth_packed_object_oid(): use customary integer return 2020-02-24 12:55:42 -08:00
sha1dc_git.c
sha1dc_git.h
shallow.c shallow.c: use '{commit,rollback}_shallow_file' 2020-04-24 13:56:39 -07:00
shell.c
shortlog.h
sideband.c
sideband.h
sigchain.c
sigchain.h
split-index.c
split-index.h
stable-qsort.c
strbuf.c credential: allow wildcard patterns when matching config 2020-02-20 13:05:43 -08:00
strbuf.h Merge branch 'bc/wildcard-credential' 2020-03-05 10:43:02 -08:00
streaming.c streaming: allow open_istream() to handle any repo 2020-01-31 10:45:39 -08:00
streaming.h streaming: allow open_istream() to handle any repo 2020-01-31 10:45:39 -08:00
string-list.c
string-list.h Merge branch 'en/string-list-can-be-custom-sorted' into maint 2020-02-14 12:42:27 -08:00
sub-process.c
sub-process.h
submodule-config.c Merge branch 'mr/show-config-scope' 2020-02-17 13:22:17 -08:00
submodule-config.h submodule-config: add skip_if_read option to repo_read_gitmodules() 2020-01-17 13:52:14 -08:00
submodule.c Merge branch 'dt/submodule-rm-with-stale-cache' into maint 2020-03-17 15:02:21 -07:00
submodule.h
symlinks.c
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 C: use skip_prefix() to avoid hardcoded string length 2020-01-31 13:03:45 -08:00
transport-internal.h
transport.c Merge branch 'jk/no-flush-upon-disconnecting-slrpc-transport' into maint 2020-02-14 12:42:28 -08:00
transport.h
tree-diff.c
tree-walk.c tree-walk.c: break circular dependency with unpack-trees 2020-02-04 10:32:15 -08:00
tree-walk.h tree-walk.c: break circular dependency with unpack-trees 2020-02-04 10:32:15 -08:00
tree.c
tree.h
unicode-width.h unicode: update the width tables to Unicode 13.0 2020-03-17 15:06:37 -07:00
unimplemented.sh
unix-socket.c
unix-socket.h
unpack-trees.c Merge branch 'en/simplify-check-updates-in-unpack-trees' into maint 2020-03-17 15:02:25 -07:00
unpack-trees.h tree-walk.c: break circular dependency with unpack-trees 2020-02-04 10:32:15 -08:00
upload-pack.c config: split repo scope to local and worktree 2020-02-10 10:32:20 -08:00
upload-pack.h
url.c
url.h
urlmatch.c credential: allow wildcard patterns when matching config 2020-02-20 13:05:43 -08:00
urlmatch.h credential: allow wildcard patterns when matching config 2020-02-20 13:05:43 -08:00
usage.c
userdiff.c Merge branch 'ln/userdiff-elixir' 2019-12-25 11:21:59 -08:00
userdiff.h
utf8.c
utf8.h
varint.c
varint.h
version.c
version.h
versioncmp.c
walker.c Merge branch 'rs/show-progress-in-dumb-http-fetch' 2020-03-09 11:21:21 -07:00
walker.h remote-curl: show progress for fetches over dumb HTTP 2020-03-03 13:15:40 -08:00
wildmatch.c
wildmatch.h
worktree.c Merge branch 'hv/receive-denycurrent-everywhere' 2020-03-05 10:43:03 -08:00
worktree.h worktree: add utility to find worktree by pathname 2020-02-24 13:04:30 -08:00
wrap-for-bin.sh
wrapper.c
write-or-die.c
ws.c
wt-status.c
wt-status.h
xdiff-interface.c xdiff: avoid computing non-zero offset from NULL pointer 2020-01-28 23:13:25 -08:00
xdiff-interface.h
zlib.c

README.md

Build Status

Git - fast, scalable, distributed revision control system

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

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

Please read the file INSTALL for installation instructions.

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

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

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

The user discussion and development of Git take place on the Git mailing list -- everyone is welcome to post bug reports, feature requests, comments and patches to git@vger.kernel.org (read Documentation/SubmittingPatches for instructions on patch submission). To subscribe to the list, send an email with just "subscribe git" in the body to majordomo@vger.kernel.org. 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