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Johannes Schindelin a33fea0886 fsck: warn about symlink pointing inside a gitdir In the wake of fixing a vulnerability where `git clone` mistakenly followed a symbolic link that it had just written while checking out files, writing into a gitdir, let's add some defense-in-depth by teaching `git fsck` to report symbolic links stored in its trees that point inside `.git/`. Even though the Git project never made any promises about the exact shape of the `.git/` directory's contents, there are likely repositories out there containing symbolic links that point inside the gitdir. For that reason, let's only report these as warnings, not as errors. Security-conscious users are encouraged to configure `fsck.symlinkPointsToGitDir = error`. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>		2024-04-19 12:38:25 +02:00
.github	ci(linux32): add a note about Actions that must not be updated	2024-04-17 00:00:58 +02:00
Documentation	fsck: warn about symlink pointing inside a gitdir	2024-04-19 12:38:25 +02:00
block-sha1	…
builtin	clone: prevent hooks from running during a clone	2024-04-19 12:38:23 +02:00
ci	Merge branch 'quicker-asan-lsan'	2024-04-17 00:00:56 +02:00
compat	Merge branch 'jh/fsmonitor-darwin-modernize'	2024-04-16 23:55:55 +02:00
contrib	Merge branch 'ab/fewer-the-index-macros'	2022-12-01 18:38:07 +09:00
ewah	…
git-gui	Makefiles: change search through $(MAKEFLAGS) for GNU make 4.4	2022-12-01 07:24:12 +09:00
gitk-git	…
gitweb	…
mergetools	…
negotiator	…
oss-fuzz	…
perl	…
po	l10n: zh_TW.po: Git 2.39-rc2	2022-12-11 01:27:25 +08:00
refs	Merge branch 'ps/fsync-refs-fix' into maint-2.39	2023-02-14 14:15:50 -08:00
reftable	…
sha1collisiondetection@855827c583	…
sha1dc	…
sha256	…
t	fsck: warn about symlink pointing inside a gitdir	2024-04-19 12:38:25 +02:00
templates	…
trace2	…
xdiff	xdiff: mark unused parameter in xdl_call_hunk_func()	2022-12-13 22:16:23 +09:00
.cirrus.yml	…
.clang-format	…
.editorconfig	…
.gitattributes	…
.gitignore	Merge branch 'ab/coccicheck-incremental'	2022-11-23 11:22:23 +09:00
.gitmodules	…
.mailmap	mailmap: update email address of Matheus Tavares	2022-12-10 09:17:36 +09:00
.tsan-suppressions	…
CODE_OF_CONDUCT.md	…
COPYING	…
GIT-VERSION-GEN	Git 2.39.3	2023-04-17 21:16:08 +02:00
INSTALL	Merge branch 'backport/jk/libcurl-8.7-regression-workaround' into maint-2.39	2024-04-16 23:58:53 +02:00
LGPL-2.1	…
Makefile	Sync with 2.36.6	2023-04-17 21:16:04 +02:00
README.md	…
RelNotes	Git 2.38.5	2023-04-17 21:16:07 +02:00
SECURITY.md	…
abspath.c	…
aclocal.m4	…
add-interactive.c	diff: mark unused parameters in callbacks	2022-12-13 22:16:23 +09:00
add-interactive.h	…
add-patch.c	read-cache API & users: make discard_index() return void	2022-11-21 12:06:15 +09:00
advice.c	…
advice.h	…
alias.c	…
alias.h	…
alloc.c	…
alloc.h	…
apply.c	Sync with 2.38.5	2023-04-17 21:16:08 +02:00
apply.h	…
archive-tar.c	archive-tar: report filter start error only once	2022-10-30 19:50:43 -04:00
archive-zip.c	…
archive.c	…
archive.h	…
attr.c	Sync with maint-2.37	2023-01-19 13:48:26 -08:00
attr.h	Merge branch 'maint-2.35' into maint-2.36	2022-12-13 21:19:11 +09:00
banned.h	…
base85.c	…
bisect.c	replace and remove run_command_v_opt()	2022-10-30 14:04:51 -04:00
bisect.h	…
blame.c	…
blame.h	…
blob.c	blob: drop unused parts of parse_blob_buffer()	2022-12-13 22:16:22 +09:00
blob.h	blob: drop unused parts of parse_blob_buffer()	2022-12-13 22:16:22 +09:00
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	Merge branch 'ds/bundle-uri-3'	2022-10-30 21:04:44 -04:00
cache-tree.c	…
cache-tree.h	…
cache.h	Add a helper function to compare file contents	2024-04-19 12:38:19 +02:00
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	utf8: fix truncated string lengths in `utf8_strnwidth()`	2022-12-09 14:26:21 +09:00
column.h	…
combine-diff.c	diff: mark unused parameters in callbacks	2022-12-13 22:16:23 +09:00
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	Merge branch 'rs/clear-commit-marks-cleanup' into maint-2.39	2023-02-14 14:15:56 -08:00
commit.h	…
common-main.c	…
config.c	core.hooksPath: add some protection while cloning	2024-04-19 12:38:24 +02:00
config.h	…
config.mak.dev	…
config.mak.in	…
config.mak.uname	use enhanced basic regular expressions on macOS	2023-01-08 10:06:34 +09:00
configure.ac	…
connect.c	server_supports_v2(): use a separate function for die_on_error	2022-12-13 22:08:52 +09:00
connect.h	server_supports_v2(): use a separate function for die_on_error	2022-12-13 22:08:52 +09:00
connected.c	receive-pack: only use visible refs for connectivity check	2022-11-17 16:22:52 -05:00
connected.h	receive-pack: only use visible refs for connectivity check	2022-11-17 16:22:52 -05:00
convert.c	…
convert.h	…
copy.c	Add a helper function to compare file contents	2024-04-19 12:38:19 +02:00
credential.c	…
credential.h	…
csum-file.c	…
csum-file.h	…
ctype.c	…
daemon.c	…
date.c	…
date.h	…
decorate.c	…
decorate.h	…
delta-islands.c	delta-islands: free island-related data after use	2022-11-18 18:30:49 -05:00
delta-islands.h	…
delta.h	…
detect-compiler	…
diagnose.c	…
diagnose.h	…
diff-delta.c	…
diff-lib.c	diff: mark unused parameters in callbacks	2022-12-13 22:16:23 +09:00
diff-merges.c	…
diff-merges.h	…
diff-no-index.c	…
diff.c	Merge branch 'jk/unused-post-2.39' into maint-2.39	2023-02-14 14:15:55 -08:00
diff.h	…
diffcore-break.c	…
diffcore-delta.c	…
diffcore-order.c	…
diffcore-pickaxe.c	…
diffcore-rename.c	…
diffcore-rotate.c	…
diffcore.h	line-log: free diff queue when processing non-merge commits	2022-11-02 20:16:34 -04:00
dir-iterator.c	dir-iterator: prevent top-level symlinks without FOLLOW_SYMLINKS	2023-01-24 16:52:16 -08:00
dir-iterator.h	dir-iterator: prevent top-level symlinks without FOLLOW_SYMLINKS	2023-01-24 16:52:16 -08:00
dir.c	entry: report more colliding paths	2024-04-17 22:30:07 +02:00
dir.h	entry: report more colliding paths	2024-04-17 22:30:07 +02:00
editor.c	…
entry.c	clone: when symbolic links collide with directories, keep the latter	2024-04-17 22:30:08 +02:00
entry.h	…
environment.c	…
environment.h	…
exec-cmd.c	…
exec-cmd.h	…
fetch-negotiator.c	…
fetch-negotiator.h	…
fetch-pack.c	server_supports_v2(): use a separate function for die_on_error	2022-12-13 22:08:52 +09:00
fetch-pack.h	…
fmt-merge-msg.c	…
fmt-merge-msg.h	…
fsck.c	fsck: warn about symlink pointing inside a gitdir	2024-04-19 12:38:25 +02:00
fsck.h	fsck: warn about symlink pointing inside a gitdir	2024-04-19 12:38:25 +02:00
fsmonitor--daemon.h	…
fsmonitor-ipc.c	replace and remove run_command_v_opt_tr2()	2022-10-30 14:04:48 -04:00
fsmonitor-ipc.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	Sync with 2.38.5	2023-04-17 21:16:08 +02:00
gettext.h	Sync with 2.33.8	2023-04-17 21:15:56 +02:00
git-add--interactive.perl	…
git-archimport.perl	…
git-bisect.sh	bisect--helper: parse subcommand with OPT_SUBCOMMAND	2022-11-11 17:04:57 -05:00
git-compat-util.h	Merge branch 'rs/use-enhanced-bre-on-macos' into maint-2.39	2023-02-14 14:15:49 -08:00
git-curl-compat.h	remote-curl: add Transfer-Encoding header only for older curl	2024-04-10 19:24:48 +02:00
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	submodule--helper: drop "update --prefix <pfx>" for "-C <pfx> update"	2022-11-08 14:55:30 -05:00
git-svn.perl	…
git-web--browse.sh	…
git.c	Merge branch 'ab/submodule-helper-prep-only'	2022-11-23 11:22:22 +09:00
git.rc	…
gpg-interface.c	…
gpg-interface.h	…
graph.c	…
graph.h	…
grep.c	…
grep.h	…
hash-lookup.c	…
hash-lookup.h	…
hash.h	…
hashmap.c	…
hashmap.h	…
help.c	…
help.h	…
hex.c	…
hook.c	clone: prevent hooks from running during a clone	2024-04-19 12:38:23 +02:00
hook.h	…
http-backend.c	…
http-fetch.c	…
http-push.c	Sync with 2.31.8	2023-04-17 21:15:49 +02:00
http-walker.c	…
http.c	Merge branch 'backport/jk/libcurl-8.7-regression-workaround' into maint-2.39	2024-04-16 23:58:53 +02:00
http.h	Sync with 2.30.9	2023-04-17 21:15:44 +02:00
ident.c	…
imap-send.c	…
iterator.h	…
json-writer.c	…
json-writer.h	…
khash.h	…
kwset.c	…
kwset.h	…
levenshtein.c	…
levenshtein.h	…
line-log.c	line-log: free the diff queues' arrays when processing merge commits	2022-11-02 20:16:34 -04:00
line-log.h	…
line-range.c	line-range: fix infinite loop bug with '$' regex	2022-12-20 10:00:43 +09:00
line-range.h	…
linear-assignment.c	…
linear-assignment.h	…
list-objects-filter-options.c	…
list-objects-filter-options.h	…
list-objects-filter.c	Merge branch 'jk/unused-post-2.39' into maint-2.39	2023-02-14 14:15:55 -08:00
list-objects-filter.h	…
list-objects.c	list-objects: drop process_gitlink() function	2022-12-13 22:16:22 +09:00
list-objects.h	…
list.h	…
ll-merge.c	Merge branch 'rs/no-more-run-command-v'	2022-11-08 17:15:12 -05:00
ll-merge.h	…
lockfile.c	…
lockfile.h	…
log-tree.c	…
log-tree.h	…
ls-refs.c	ls-refs: use repository parameter to iterate refs	2022-12-13 22:16:22 +09:00
ls-refs.h	…
mailinfo.c	…
mailinfo.h	…
mailmap.c	…
mailmap.h	…
match-trees.c	…
mem-pool.c	…
mem-pool.h	…
merge-blobs.c	…
merge-blobs.h	…
merge-ort-wrappers.c	…
merge-ort-wrappers.h	…
merge-ort.c	Merge branch 'en/ort-dir-rename-and-symlink-fix'	2022-10-30 21:04:43 -04:00
merge-ort.h	…
merge-recursive.c	merge-recursive: fix variable typo in error message	2022-11-27 10:26:10 +09:00
merge-recursive.h	…
merge.c	use child_process members "args" and "env" directly	2022-10-30 14:04:40 -04:00
mergesort.h	…
midx.c	…
midx.h	…
name-hash.c	…
notes-cache.c	…
notes-cache.h	…
notes-merge.c	…
notes-merge.h	…
notes-utils.c	…
notes-utils.h	…
notes.c	…
notes.h	…
object-file.c	object-file: inline write_buffer()	2022-12-14 10:29:19 +09:00
object-name.c	…
object-store.h	…
object.c	blob: drop unused parts of parse_blob_buffer()	2022-12-13 22:16:22 +09:00
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	git: remove duplicate includes	2022-12-15 09:09:38 +09:00
pack.h	…
packfile.c	…
packfile.h	…
pager.c	…
parallel-checkout.c	…
parallel-checkout.h	…
parse-options-cb.c	…
parse-options.c	…
parse-options.h	…
patch-delta.c	…
patch-ids.c	Merge branch 'jz/patch-id'	2022-10-30 21:04:41 -04:00
patch-ids.h	…
path.c	fetch/clone: detect dubious ownership of local repositories	2024-04-17 22:29:54 +02:00
path.h	…
pathspec.c	…
pathspec.h	…
pkt-line.c	…
pkt-line.h	…
preload-index.c	…
pretty.c	Sync with Git 2.37.5	2022-12-13 21:23:36 +09:00
pretty.h	…
prio-queue.c	…
prio-queue.h	…
progress.c	…
progress.h	…
promisor-remote.c	upload-pack: disable lazy-fetching by default	2024-04-17 22:29:56 +02:00
promisor-remote.h	…
prompt.c	…
prompt.h	…
protocol-caps.c	…
protocol-caps.h	…
protocol.c	…
protocol.h	…
prune-packed.c	…
prune-packed.h	…
quote.c	…
quote.h	…
range-diff.c	Sync with 2.31.8	2023-04-17 21:15:49 +02:00
range-diff.h	…
reachable.c	…
reachable.h	…
read-cache.c	has_dir_name(): do not get confused by characters < '/'	2024-04-17 22:29:58 +02:00
rebase-interactive.c	…
rebase-interactive.h	…
rebase.c	…
rebase.h	…
ref-filter.c	ls-refs: use repository parameter to iterate refs	2022-12-13 22:16:22 +09:00
ref-filter.h	…
reflog-walk.c	…
reflog-walk.h	…
reflog.c	Merge branch 'rs/reflog-expiry-cleanup' into maint-2.39	2023-02-14 14:15:56 -08:00
reflog.h	…
refs.c	ls-refs: use repository parameter to iterate refs	2022-12-13 22:16:22 +09:00
refs.h	ls-refs: use repository parameter to iterate refs	2022-12-13 22:16:22 +09:00
refspec.c	…
refspec.h	…
remote-curl.c	Merge branch 'backport/jk/libcurl-8.7-regression-workaround' into maint-2.39	2024-04-16 23:58:53 +02:00
remote.c	…
remote.h	…
replace-object.c	…
replace-object.h	…
repo-settings.c	Merge branch 'es/mark-gc-cruft-as-experimental'	2022-11-08 17:14:48 -05:00
repository.c	{builtin/*,repository}.c: add & use "USE_THE_INDEX_VARIABLE"	2022-11-21 12:06:15 +09:00
repository.h	Merge branch 'es/mark-gc-cruft-as-experimental'	2022-11-08 17:14:48 -05:00
rerere.c	…
rerere.h	…
reset.c	rebase: use 'skip_cache_tree_update' option	2022-11-10 21:49:34 -05:00
reset.h	…
resolve-undo.c	…
resolve-undo.h	…
revision.c	diff: mark unused parameters in callbacks	2022-12-13 22:16:23 +09:00
revision.h	Merge branch 'ps/receive-use-only-advertised'	2022-11-23 11:22:25 +09:00
run-command.c	Merge branch 'rs/no-more-run-command-v'	2022-11-08 17:15:12 -05:00
run-command.h	Merge branch 'rs/no-more-run-command-v'	2022-11-08 17:15:12 -05:00
scalar.c	Merge branch 'js/remove-stale-scalar-repos'	2022-11-23 11:22:23 +09:00
send-pack.c	…
send-pack.h	…
sequencer.c	git: remove duplicate includes	2022-12-15 09:09:38 +09:00
sequencer.h	sequencer: stop exporting GIT_REFLOG_ACTION	2022-11-09 18:15:43 -05:00
serve.c	…
serve.h	…
server-info.c	…
setup.c	init.templateDir: consider this config setting protected	2024-04-19 12:38:24 +02:00
sh-i18n--envsubst.c	…
sha1dc_git.c	…
sha1dc_git.h	Makefile & test-tool: replace "DC_SHA1" variable with a "define"	2022-11-07 22:11:51 -05:00
shallow.c	…
shallow.h	…
shared.mak	Merge branch 'ab/gnumake-4.4-fix'	2022-12-01 18:38:07 +09:00
shell.c	replace and remove run_command_v_opt()	2022-10-30 14:04:51 -04:00
shortlog.h	…
sideband.c	…
sideband.h	…
sigchain.c	…
sigchain.h	…
simple-ipc.h	…
sparse-index.c	index: raise a bug if the index is materialised more than once	2022-11-04 20:28:28 -04:00
sparse-index.h	…
split-index.c	…
split-index.h	…
stable-qsort.c	…
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: require the submodule path to contain directories only	2024-04-17 22:30:04 +02:00
submodule.h	submodule: require the submodule path to contain directories only	2024-04-17 22:30:04 +02:00
symlinks.c	…
tag.c	…
tag.h	…
tar.h	…
tempfile.c	…
tempfile.h	…
thread-utils.c	…
thread-utils.h	…
tmp-objdir.c	…
tmp-objdir.h	replace and remove run_command_v_opt_cd_env()	2022-10-30 14:04:47 -04:00
trace.c	…
trace.h	…
trace2.c	…
trace2.h	…
trailer.c	…
trailer.h	…
transport-helper.c	…
transport-internal.h	…
transport.c	Merge branch 'ds/bundle-uri-3'	2022-10-30 21:04:44 -04:00
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	git: remove duplicate includes	2022-12-15 09:09:38 +09:00
unpack-trees.h	unpack-trees: add 'skip_cache_tree_update' option	2022-11-10 21:49:34 -05:00
upload-pack.c	refs: get rid of global list of hidden refs	2022-11-17 16:22:51 -05:00
upload-pack.h	…
url.c	…
url.h	…
urlmatch.c	…
urlmatch.h	…
usage.c	…
userdiff.c	userdiff: mark unused parameter in internal callback	2022-12-13 22:16:23 +09:00
userdiff.h	…
utf8.c	Sync with Git 2.31.6	2022-12-13 21:09:40 +09:00
utf8.h	Sync with Git 2.31.6	2022-12-13 21:09:40 +09:00
varint.c	…
varint.h	…
version.c	…
version.h	…
versioncmp.c	…
walker.c	…
walker.h	…
wildmatch.c	…
wildmatch.h	…
worktree.c	…
worktree.h	…
wrap-for-bin.sh	…
wrapper.c	…
write-or-die.c	…
ws.c	ws: drop unused parameter from ws_blank_line()	2022-12-13 22:16:23 +09:00
wt-status.c	diff: mark unused parameters in callbacks	2022-12-13 22:16:23 +09:00
wt-status.h	…
xdiff-interface.c	…
xdiff-interface.h	…
zlib.c	…

README.md

Git - fast, scalable, distributed revision control system

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

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

Please read the file INSTALL for installation instructions.

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

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

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

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

Those wishing to help with error message, usage and informational message string translations (localization l10) should see po/README.md (a po file is a Portable Object file that holds the translations).

To subscribe to the list, send an email with just "subscribe git" in the body to majordomo@vger.kernel.org (not the Git list). The mailing list archives are available at https://lore.kernel.org/git/, http://marc.info/?l=git and other archival sites.

Issues which are security relevant should be disclosed privately to the Git Security mailing list git-security@googlegroups.com.

The maintainer frequently sends the "What's cooking" reports that list the current status of various development topics to the mailing list. The discussion following them give a good reference for project status, development direction and remaining tasks.

The name "git" was given by Linus Torvalds when he wrote the very first version. He described the tool as "the stupid content tracker" and the name as (depending on your mood):

random three-letter combination that is pronounceable, and not actually used by any common UNIX command. The fact that it is a mispronunciation of "get" may or may not be relevant.
stupid. contemptible and despicable. simple. Take your pick from the dictionary of slang.
"global information tracker": you're in a good mood, and it actually works for you. Angels sing, and a light suddenly fills the room.
"goddamn idiotic truckload of sh*t": when it breaks