1
0
mirror of https://github.com/git/git.git synced 2024-10-21 12:48:32 +02:00
Git Source Code Mirror. Please follow Documentation/SubmittingPatches procedure for any of your improvements.
Go to file
SZEDER Gábor 47bd3d0c14 ref-filter: don't look for objects when outside of a repository
The command 'git ls-remote --sort=authordate <remote>' segfaults when
run outside of a repository, ever since the introduction of its
'--sort' option in 1fb20dfd8e (ls-remote: create '--sort' option,
2018-04-09).

While in general the 'git ls-remote' command can be run outside of a
repository just fine, its '--sort=<key>' option with certain keys does
require access to the referenced objects.  This sorting is implemented
using the generic ref-filter sorting facility, which already handles
missing objects gracefully with the appropriate 'missing object
deadbeef for HEAD' message.  However, being generic means that it
checks replace refs while trying to retrieve an object, and while
doing so it accesses the 'git_replace_ref_base' variable, which has
not been initialized and is still a NULL pointer when outside of a
repository, thus causing the segfault.

Make ref-filter more careful upfront while parsing the format string,
and make it error out when encountering a format atom requiring object
access when we are not in a repository.  Also add a test to ensure
that 'git ls-remote --sort' fails gracefully when executed outside of
a repository.

Reported-by: H.Merijn Brand <h.m.brand@xs4all.nl>
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-11-16 13:49:08 +09:00
.github
block-sha1
builtin Merge branch 'bp/add-diff-files-optim' 2018-11-13 22:37:27 +09:00
ci Merge branch 'sg/travis-install-dependencies' 2018-11-13 22:37:27 +09:00
compat Merge branch 'sh/mingw-safer-compat-poll' 2018-11-13 22:37:24 +09:00
contrib Merge branch 'nd/complete-format-patch' 2018-11-13 22:37:28 +09:00
Documentation Tenth batch for 2.20 2018-11-13 22:37:28 +09:00
ewah
git-gui
gitk-git
gitweb
mergetools
negotiator
perl
po
ppc
refs Merge branch 'nd/per-worktree-ref-iteration' 2018-11-13 22:37:26 +09:00
sha1collisiondetection@232357eb2e
sha1dc
t ref-filter: don't look for objects when outside of a repository 2018-11-16 13:49:08 +09:00
templates
vcs-svn
xdiff
.clang-format
.editorconfig
.gitattributes
.gitignore
.gitmodules
.mailmap
.travis.yml
.tsan-suppressions
abspath.c
aclocal.m4
advice.c
advice.h
alias.c
alias.h
alloc.c
alloc.h
apply.c
apply.h
archive-tar.c
archive-zip.c
archive.c
archive.h
argv-array.c
argv-array.h
attr.c
attr.h
banned.h
base85.c
bisect.c
bisect.h
blame.c
blame.h
blob.c
blob.h
branch.c
branch.h
builtin.h
bulk-checkin.c
bulk-checkin.h
bundle.c
bundle.h
cache-tree.c
cache-tree.h
cache.h Merge branch 'bp/refresh-index-using-preload' 2018-11-13 22:37:26 +09:00
chdir-notify.c
chdir-notify.h
check_bindir
check-builtins.sh
check-racy.c
checkout.c
checkout.h
color.c
color.h
column.c
column.h
combine-diff.c Merge branch 'jk/xdiff-interface' 2018-11-13 22:37:27 +09:00
command-list.txt
commit-graph.c
commit-graph.h
commit-reach.c
commit-reach.h Merge branch 'ds/add-missing-tags' 2018-11-13 22:37:24 +09:00
commit-slab-decl.h
commit-slab-impl.h
commit-slab.h
commit.c
commit.h
common-main.c
config.c
config.h
config.mak.dev
config.mak.in
config.mak.uname
configure.ac
connect.c
connect.h
connected.c
connected.h
convert.c
convert.h
copy.c
COPYING
credential-cache--daemon.c
credential-cache.c
credential-store.c
credential.c
credential.h
csum-file.c
csum-file.h
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 'jk/xdiff-interface' 2018-11-13 22:37:27 +09:00
diff.h
diffcore-break.c
diffcore-delta.c
diffcore-order.c
diffcore-pickaxe.c Merge branch 'jk/xdiff-interface' 2018-11-13 22:37:27 +09:00
diffcore-rename.c
diffcore.h
dir-iterator.c
dir-iterator.h
dir.c
dir.h
editor.c
entry.c
environment.c
exec-cmd.c
exec-cmd.h
fast-import.c
fetch-negotiator.c
fetch-negotiator.h
fetch-object.c
fetch-object.h
fetch-pack.c
fetch-pack.h
fmt-merge-msg.h
fsck.c
fsck.h
fsmonitor.c
fsmonitor.h
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-rebase.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-parse-remote.sh
git-quiltimport.sh
git-rebase--am.sh
git-rebase--common.sh
git-rebase--merge.sh
git-rebase--preserve-merges.sh
git-remote-testgit.sh
git-request-pull.sh
git-send-email.perl Merge branch 'nd/complete-format-patch' 2018-11-13 22:37:28 +09:00
git-sh-i18n.sh
git-sh-setup.sh
git-stash.sh
git-submodule.sh Merge branch 'ao/submodule-wo-gitmodules-checked-out' 2018-11-13 22:37:22 +09:00
git-svn.perl
GIT-VERSION-GEN
git-web--browse.sh
git.c
git.rc
gpg-interface.c
gpg-interface.h
graph.c
graph.h
grep.c
grep.h
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
http.h
ident.c
imap-send.c
INSTALL
interdiff.c
interdiff.h
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.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
log-tree.h
ls-refs.c
ls-refs.h
mailinfo.c
mailinfo.h
mailmap.c
mailmap.h
Makefile Merge branch 'ao/submodule-wo-gitmodules-checked-out' 2018-11-13 22:37:22 +09:00
match-trees.c
mem-pool.c
mem-pool.h
merge-blobs.c
merge-blobs.h
merge-recursive.c
merge-recursive.h
merge.c
mergesort.c
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-store.h
object.c
object.h
oidmap.c
oidmap.h
oidset.c
oidset.h
pack-bitmap-write.c
pack-bitmap.c
pack-bitmap.h
pack-check.c
pack-objects.c
pack-objects.h
pack-revindex.c
pack-revindex.h
pack-write.c
pack.h
packfile.c
packfile.h
pager.c
parse-options-cb.c
parse-options.c
parse-options.h
patch-delta.c
patch-ids.c
patch-ids.h
path.c Merge branch 'nd/per-worktree-ref-iteration' 2018-11-13 22:37:26 +09:00
path.h
pathspec.c
pathspec.h
pkt-line.c
pkt-line.h
preload-index.c
pretty.c
pretty.h
prio-queue.c
prio-queue.h
progress.c
progress.h
prompt.c
prompt.h
protocol.c
protocol.h
quote.c
quote.h
range-diff.c Merge branch 'jk/xdiff-interface' 2018-11-13 22:37:27 +09:00
range-diff.h
reachable.c
reachable.h
read-cache.c Merge branch 'bp/refresh-index-using-preload' 2018-11-13 22:37:26 +09:00
README.md
rebase-interactive.c
rebase-interactive.h
ref-filter.c ref-filter: don't look for objects when outside of a repository 2018-11-16 13:49:08 +09:00
ref-filter.h
reflog-walk.c
reflog-walk.h
refs.c Merge branch 'nd/per-worktree-ref-iteration' 2018-11-13 22:37:26 +09:00
refs.h Merge branch 'nd/per-worktree-ref-iteration' 2018-11-13 22:37:26 +09:00
refspec.c
refspec.h
RelNotes
remote-curl.c
remote-testsvn.c
remote.c
remote.h
replace-object.c
replace-object.h
repository.c
repository.h
rerere.c
rerere.h
resolve-undo.c
resolve-undo.h
revision.c Merge branch 'jk/misc-unused-fixes' 2018-11-13 22:37:26 +09:00
revision.h
run-command.c
run-command.h
send-pack.c
send-pack.h
sequencer.c Merge branch 'bp/refresh-index-using-preload' 2018-11-13 22:37:26 +09:00
sequencer.h Merge branch 'pw/am-rebase-read-author-script' 2018-11-13 22:37:23 +09:00
serve.c
serve.h
server-info.c
setup.c
sh-i18n--envsubst.c
sha1-array.c
sha1-array.h
sha1-file.c
sha1-lookup.c
sha1-lookup.h
sha1-name.c
sha1dc_git.c
sha1dc_git.h
shallow.c
shell.c
shortlog.h
sideband.c
sideband.h
sigchain.c
sigchain.h
split-index.c
split-index.h
strbuf.c
strbuf.h
streaming.c
streaming.h
string-list.c
string-list.h
sub-process.c
sub-process.h
submodule-config.c Merge branch 'ao/submodule-wo-gitmodules-checked-out' 2018-11-13 22:37:22 +09:00
submodule-config.h
submodule.c Merge branch 'ao/submodule-wo-gitmodules-checked-out' 2018-11-13 22:37:22 +09:00
submodule.h Merge branch 'ao/submodule-wo-gitmodules-checked-out' 2018-11-13 22:37:22 +09:00
symlinks.c
tag.c
tag.h
tar.h
tempfile.c
tempfile.h
thread-utils.c
thread-utils.h
tmp-objdir.c
tmp-objdir.h
trace.c
trace.h
trailer.c
trailer.h
transport-helper.c
transport-internal.h
transport.c
transport.h
tree-diff.c
tree-walk.c Merge branch 'nd/tree-walk-path-exclusion' 2018-11-13 22:37:28 +09:00
tree-walk.h
tree.c
tree.h
unicode-width.h
unimplemented.sh
unix-socket.c
unix-socket.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
walker.c
walker.h
wildmatch.c
wildmatch.h
worktree.c Merge branch 'nd/per-worktree-ref-iteration' 2018-11-13 22:37:26 +09:00
worktree.h Merge branch 'nd/per-worktree-ref-iteration' 2018-11-13 22:37:26 +09:00
wrap-for-bin.sh
wrapper.c
write-or-die.c
ws.c
wt-status.c
wt-status.h
xdiff-interface.c Merge branch 'jk/xdiff-interface' 2018-11-13 22:37:27 +09:00
xdiff-interface.h
zlib.c

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-.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://public-inbox.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