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Jeff King 953aa54e1a pack-objects: clamp negative window size to 0
A negative window size makes no sense, and the code in find_deltas() is
not prepared to handle it. If you pass "-1", for example, we end up
generate a 0-length array of "struct unpacked", but our loop assumes it
has at least one entry in it (and we end up reading garbage memory).

We could complain to the user about this, but it's more forgiving to
just clamp it to 0, which means "do not find any deltas at all". The
0-case is already tested earlier in the script, so we'll make sure this
does the same thing.

Reported-by: Yiyuan guo <yguoaz@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-05-03 14:29:27 +09:00
.github
Documentation The thirteenth batch 2021-04-30 13:50:27 +09:00
block-sha1
builtin pack-objects: clamp negative window size to 0 2021-05-03 14:29:27 +09:00
ci Merge branch 'en/ort-readiness' 2021-04-16 13:53:34 -07:00
compat Merge branch 'js/access-nul-emulation-on-windows' 2021-04-20 17:23:37 -07:00
contrib Merge branch 'vs/completion-with-set-u' 2021-04-30 13:50:27 +09:00
ewah
git-gui
gitk-git
gitweb
mergetools
negotiator
perl
po
ppc
refs
sha1collisiondetection@855827c583
sha1dc
sha256
t pack-objects: clamp negative window size to 0 2021-05-03 14:29:27 +09:00
templates
trace2
xdiff
.cirrus.yml
.clang-format
.editorconfig
.gitattributes
.gitignore parallel-checkout: make it truly parallel 2021-04-19 11:57:05 -07:00
.gitmodules
.mailmap
.travis.yml
.tsan-suppressions
CODE_OF_CONDUCT.md
COPYING
GIT-VERSION-GEN
INSTALL
LGPL-2.1
Makefile Merge branch 'mt/parallel-checkout-part-2' 2021-04-30 13:50:26 +09:00
README.md
RelNotes
SECURITY.md
abspath.c
aclocal.m4
add-interactive.c
add-interactive.h
add-patch.c
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
attr.c Merge branch 'ds/sparse-index-protections' 2021-04-30 13:50:26 +09:00
attr.h *: remove 'const' qualifier for struct index_state 2021-04-14 13:46:00 -07:00
banned.h
base85.c
bisect.c
bisect.h
blame.c
blame.h
blob.c
blob.h
bloom.c
bloom.h
branch.c
branch.h
builtin.h parallel-checkout: make it truly parallel 2021-04-19 11:57:05 -07:00
bulk-checkin.c
bulk-checkin.h
bundle.c
bundle.h
cache-tree.c Merge branch 'ds/sparse-index-protections' 2021-04-30 13:50:26 +09:00
cache-tree.h
cache.h Merge branch 'ds/sparse-index-protections' 2021-04-30 13:50:26 +09:00
chdir-notify.c
chdir-notify.h
check-builtins.sh
check_bindir
checkout.c
checkout.h
chunk-format.c
chunk-format.h
color.c
color.h
column.c
column.h
combine-diff.c
command-list.txt
commit-graph.c
commit-graph.h
commit-reach.c
commit-reach.h
commit-slab-decl.h
commit-slab-impl.h
commit-slab.h
commit.c
commit.h
common-main.c
config.c
config.h
config.mak.dev
config.mak.in
config.mak.uname
configure.ac
connect.c
connect.h
connected.c
connected.h
convert.c Merge branch 'ds/sparse-index-protections' 2021-04-30 13:50:26 +09:00
convert.h Merge branch 'ds/sparse-index-protections' 2021-04-30 13:50:26 +09:00
copy.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-merges.c diff-merges: introduce log.diffMerges config variable 2021-04-16 23:38:35 -07:00
diff-merges.h diff-merges: introduce log.diffMerges config variable 2021-04-16 23:38:35 -07:00
diff-no-index.c
diff.c
diff.h
diffcore-break.c
diffcore-delta.c
diffcore-order.c
diffcore-pickaxe.c
diffcore-rename.c Merge branch 'en/ort-perf-batch-10' 2021-04-16 13:53:33 -07:00
diffcore-rotate.c
diffcore.h Merge branch 'en/ort-perf-batch-10' 2021-04-16 13:53:33 -07:00
dir-iterator.c
dir-iterator.h
dir.c Merge branch 'ds/sparse-index-protections' 2021-04-30 13:50:26 +09:00
dir.h Merge branch 'ds/sparse-index-protections' 2021-04-30 13:50:26 +09:00
editor.c
entry.c Merge branch 'mt/parallel-checkout-part-2' 2021-04-30 13:50:26 +09:00
entry.h
environment.c
environment.h
exec-cmd.c
exec-cmd.h
fetch-negotiator.c
fetch-negotiator.h
fetch-pack.c Merge branch 'jt/fetch-pack-request-fix' 2021-04-20 17:23:36 -07:00
fetch-pack.h
fmt-merge-msg.c
fmt-merge-msg.h
fsck.c
fsck.h
fsmonitor.c
fsmonitor.h
fuzz-commit-graph.c
fuzz-pack-headers.c
fuzz-pack-idx.c
generate-cmdlist.sh
generate-configlist.sh
gettext.c
gettext.h
git-add--interactive.perl
git-archimport.perl
git-bisect.sh
git-compat-util.h Merge branch 'tb/precompose-prefix-simplify' 2021-04-13 15:28:51 -07:00
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-rebase--preserve-merges.sh
git-request-pull.sh
git-send-email.perl
git-sh-i18n.sh
git-sh-setup.sh
git-submodule.sh
git-svn.perl
git-web--browse.sh
git.c Merge branch 'mt/parallel-checkout-part-2' 2021-04-30 13:50:26 +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
http-backend.c
http-fetch.c
http-push.c lookup_unknown_object(): take a repository argument 2021-04-13 13:18:46 -07:00
http-walker.c
http.c
http.h
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.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
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 'ds/sparse-index-protections' 2021-04-30 13:50:26 +09:00
merge-ort.h
merge-recursive.c Merge branch 'ds/sparse-index-protections' 2021-04-30 13:50:26 +09:00
merge-recursive.h
merge.c
mergesort.c
mergesort.h
midx.c
midx.h
name-hash.c Merge branch 'ds/sparse-index-protections' 2021-04-30 13:50:26 +09:00
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-name.c
object-store.h
object.c lookup_unknown_object(): take a repository argument 2021-04-13 13:18:46 -07:00
object.h lookup_unknown_object(): take a repository argument 2021-04-13 13:18:46 -07:00
oid-array.c
oid-array.h
oidmap.c
oidmap.h
oidset.c
oidset.h
pack-bitmap-write.c
pack-bitmap.c Merge branch 'tb/pack-preferred-tips-to-give-bitmap' 2021-04-13 15:28:50 -07:00
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
parallel-checkout.c parallel-checkout: support progress displaying 2021-04-19 11:57:05 -07:00
parallel-checkout.h parallel-checkout: support progress displaying 2021-04-19 11:57:05 -07:00
parse-options-cb.c
parse-options.c
parse-options.h
patch-delta.c
patch-ids.c
patch-ids.h
path.c
path.h
pathspec.c Merge branch 'ds/sparse-index-protections' 2021-04-30 13:50:26 +09:00
pathspec.h *: remove 'const' qualifier for struct index_state 2021-04-14 13:46:00 -07:00
pkt-line.c pkt-line: do not report packet write errors twice 2021-04-15 15:05:31 -07:00
pkt-line.h
preload-index.c
pretty.c
pretty.h
prio-queue.c
prio-queue.h
progress.c
progress.h
promisor-remote.c
promisor-remote.h
prompt.c
prompt.h
protocol.c
protocol.h
prune-packed.c
prune-packed.h
quote.c
quote.h
range-diff.c
range-diff.h
reachable.c
reachable.h
read-cache.c Merge branch 'ds/sparse-index-protections' 2021-04-30 13:50:26 +09:00
rebase-interactive.c
rebase-interactive.h
rebase.c
rebase.h
ref-filter.c Merge branch 'jk/ref-filter-segfault-fix' 2021-04-13 15:28:50 -07:00
ref-filter.h
reflog-walk.c
reflog-walk.h
refs.c lookup_unknown_object(): take a repository argument 2021-04-13 13:18:46 -07:00
refs.h
refspec.c
refspec.h
remote-curl.c
remote.c
remote.h
replace-object.c
replace-object.h
repo-settings.c
repository.c Merge branch 'ds/sparse-index-protections' 2021-04-30 13:50:26 +09:00
repository.h
rerere.c
rerere.h
reset.c
reset.h
resolve-undo.c Merge branch 'ds/sparse-index-protections' 2021-04-30 13:50:26 +09:00
resolve-undo.h
revision.c Merge branch 'ds/sparse-index-protections' 2021-04-30 13:50:26 +09:00
revision.h
run-command.c
run-command.h
send-pack.c
send-pack.h
sequencer.c Merge branch 'en/ort-readiness' 2021-04-16 13:53:34 -07:00
sequencer.h
serve.c
serve.h
server-info.c
setup.c
sh-i18n--envsubst.c
sha1dc_git.c
sha1dc_git.h
shallow.c
shallow.h
shell.c
shortlog.h
sideband.c
sideband.h
sigchain.c
sigchain.h
simple-ipc.h
sparse-index.c sparse-index: expand_to_path() 2021-04-14 13:47:54 -07:00
sparse-index.h sparse-index: expand_to_path() 2021-04-14 13:47:54 -07:00
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 *: remove 'const' qualifier for struct index_state 2021-04-14 13:46:00 -07:00
submodule.h *: remove 'const' qualifier for struct index_state 2021-04-14 13:46:00 -07:00
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
trace2.c
trace2.h
trailer.c
trailer.h
transport-helper.c
transport-internal.h
transport.c Merge branch 'ow/push-quiet-set-upstream' 2021-04-30 13:50:25 +09:00
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 Merge branch 'mt/parallel-checkout-part-2' 2021-04-30 13:50:26 +09:00
unpack-trees.h
upload-pack.c lookup_unknown_object(): take a repository argument 2021-04-13 13:18:46 -07:00
upload-pack.h
url.c
url.h
urlmatch.c
urlmatch.h
usage.c usage.c: don't copy/paste the same comment three times 2021-04-13 14:56:28 -07:00
userdiff.c Merge branch 'ab/userdiff-tests' 2021-04-20 17:23:34 -07:00
userdiff.h
utf8.c
utf8.h
varint.c
varint.h
version.c
version.h
versioncmp.c
walker.c lookup_unknown_object(): take a repository argument 2021-04-13 13:18:46 -07:00
walker.h
wildmatch.c
wildmatch.h
worktree.c
worktree.h
wrap-for-bin.sh
wrapper.c
write-or-die.c
ws.c
wt-status.c
wt-status.h
xdiff-interface.c
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