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SZEDER Gábor 2ad4f1a7c4 commit-graph: simplify parse_commit_graph() #1 While we iterate over all entries of the Chunk Lookup table we make sure that we don't attempt to read past the end of the mmap-ed commit-graph file, and check in each iteration that the chunk ID and offset we are about to read is still within the mmap-ed memory region. However, these checks in each iteration are not really necessary, because the number of chunks in the commit-graph file is already known before this loop from the just parsed commit-graph header. So let's check that the commit-graph file is large enough for all entries in the Chunk Lookup table before we start iterating over those entries, and drop those per-iteration checks. While at it, take into account the size of everything that is necessary to have a valid commit-graph file, i.e. the size of the header, the size of the mandatory OID Fanout chunk, and the size of the signature in the trailer as well. Note that this necessitates the change of the error message as well, and, consequently, have to update the 'detect incorrect chunk count' test in 't5318-commit-graph.sh' as well. Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com> Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>		2020-06-08 12:28:49 -07:00
.github	…
Documentation	commit-graph-format.txt: all multi-byte numbers are in network byte order	2020-06-08 12:28:49 -07:00
block-sha1	…
builtin	blame: use changed-path Bloom filters	2020-04-16 15:38:06 -07:00
ci	commit-graph: add GIT_TEST_COMMIT_GRAPH_CHANGED_PATHS test flag	2020-04-06 11:08:37 -07:00
compat	Merge branch 'js/mingw-open-in-gdb' into maint	2020-03-17 15:02:25 -07:00
contrib	completion: offer '--(no-)patch' among 'git log' options	2020-05-11 09:33:56 -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	…
mergetools	…
negotiator	…
perl	…
po	l10n: tr.po: change file mode to 644	2020-03-21 18:26:56 +08:00
ppc	…
refs	…
sha1collisiondetection@855827c583	…
sha1dc	…
sha256	hash: implement and use a context cloning function	2020-02-24 09:33:21 -08:00
t	commit-graph: simplify parse_commit_graph() #1	2020-06-08 12:28:49 -07:00
templates	…
trace2	…
vcs-svn	…
xdiff	…
.cirrus.yml	…
.clang-format	…
.editorconfig	…
.gitattributes	…
.gitignore	stash: remove the stash.useBuiltin setting	2020-03-05 12:50:28 -08:00
.gitmodules	…
.mailmap	Merge branch 'bc/wildcard-credential'	2020-03-05 10:43:02 -08:00
.travis.yml	…
.tsan-suppressions	…
CODE_OF_CONDUCT.md	…
COPYING	…
GIT-VERSION-GEN	The first batch post 2.26 cycle	2020-03-25 13:57:44 -07:00
INSTALL	…
LGPL-2.1	…
Makefile	bloom.c: add the murmur3 hash implementation	2020-03-30 09:59:53 -07:00
README.md	…
RelNotes	The first batch post 2.26 cycle	2020-03-25 13:57:44 -07:00
abspath.c	real_path_if_valid(): remove unsafe API	2020-03-10 11:41:40 -07:00
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	…
add-patch.c	…
advice.c	Merge branch 'hw/advise-ng'	2020-03-25 13:57:41 -07:00
advice.h	Merge branch 'hw/advise-ng'	2020-03-25 13:57:41 -07:00
alias.c	…
alias.h	…
alloc.c	…
alloc.h	…
apply.c	convert: permit passing additional metadata to filter processes	2020-03-16 11:37:02 -07:00
apply.h	…
archive-tar.c	…
archive-zip.c	…
archive.c	convert: provide additional metadata to filters	2020-03-16 11:37:02 -07:00
archive.h	convert: provide additional metadata to filters	2020-03-16 11:37:02 -07:00
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: drop unused parameter from maybe_changed_path	2020-04-23 14:37:03 -07:00
blame.h	blame: use changed-path Bloom filters	2020-04-16 15:38:06 -07:00
blob.c	…
blob.h	…
bloom.c	line-log: integrate with changed-path Bloom filters	2020-05-11 09:33:56 -07:00
bloom.h	line-log: integrate with changed-path Bloom filters	2020-05-11 09:33:56 -07:00
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 'bc/filter-process'	2020-03-26 17:11:20 -07:00
chdir-notify.c	…
chdir-notify.h	…
check-builtins.sh	…
check_bindir	…
checkout.c	…
checkout.h	…
color.c	…
color.h	…
column.c	…
column.h	…
combine-diff.c	…
command-list.txt	…
commit-graph.c	commit-graph: simplify parse_commit_graph() #1	2020-06-08 12:28:49 -07:00
commit-graph.h	commit-graph: clean up #includes	2020-06-08 12:28:49 -07:00
commit-reach.c	…
commit-reach.h	…
commit-slab-decl.h	commit-slab: add a function to deep free entries on the slab	2020-06-08 12:28:49 -07:00
commit-slab-impl.h	commit-slab: add a function to deep free entries on the slab	2020-06-08 12:28:49 -07:00
commit-slab.h	commit-slab: add a function to deep free entries on the slab	2020-06-08 12:28:49 -07:00
commit.c	Merge branch 'at/rebase-fork-point-regression-fix'	2020-03-26 17:11:21 -07:00
commit.h	…
common-main.c	…
config.c	Merge branch 'bw/remote-rename-update-config'	2020-02-25 11:18:32 -08:00
config.h	…
config.mak.dev	Merge branch 'bc/sha-256-part-1-of-4'	2020-03-26 17:11:20 -07:00
config.mak.in	…
config.mak.uname	…
configure.ac	…
connect.c	…
connect.h	…
connected.c	connected.c: reprepare packs for corner cases	2020-03-15 15:39:00 -07:00
connected.h	…
convert.c	convert: provide additional metadata to filters	2020-03-16 11:37:02 -07:00
convert.h	convert: provide additional metadata to filters	2020-03-16 11:37:02 -07:00
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	hash: implement and use a context cloning function	2020-02-24 09:33:21 -08:00
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	convert: provide additional metadata to filters	2020-03-16 11:37:02 -07:00
diff.h	diff.h: drop diff_tree_oid() & friends' return value	2020-06-08 12:28:49 -07:00
diffcore-break.c	…
diffcore-delta.c	…
diffcore-order.c	…
diffcore-pickaxe.c	…
diffcore-rename.c	…
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	…
editor.c	real_path: remove unsafe API	2020-03-10 11:41:40 -07:00
entry.c	convert: provide additional metadata to filters	2020-03-16 11:37:02 -07:00
environment.c	real_path: remove unsafe API	2020-03-10 11:41:40 -07:00
exec-cmd.c	…
exec-cmd.h	…
fast-import.c	fast-import: add options for rewriting submodules	2020-02-28 09:53:41 -08:00
fetch-negotiator.c	…
fetch-negotiator.h	…
fetch-pack.c	…
fetch-pack.h	…
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	…
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-merge-octopus.sh	…
git-merge-one-file.sh	…
git-merge-resolve.sh	…
git-mergetool--lib.sh	…
git-mergetool.sh	…
git-p4.py	Merge branch 'yz/p4-py3'	2020-03-25 13:57:43 -07:00
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	stash: remove the stash.useBuiltin setting	2020-03-05 12:50:28 -08:00
git.rc	…
gpg-interface.c	gpg-interface: prefer check_signature() for GPG verification	2020-03-15 09:46:28 -07:00
gpg-interface.h	gpg-interface: prefer check_signature() for GPG verification	2020-03-15 09:46:28 -07:00
graph.c	…
graph.h	…
grep.c	…
grep.h	…
hash.h	hash: implement and use a context cloning function	2020-02-24 09:33:21 -08:00
hashmap.c	…
hashmap.h	…
help.c	…
help.h	…
hex.c	hex: add functions to parse hex object IDs in any algorithm	2020-02-24 09:33:21 -08:00
http-backend.c	…
http-fetch.c	…
http-push.c	…
http-walker.c	…
http.c	Merge branch 'js/https-proxy-config'	2020-03-25 13:57:42 -07:00
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: integrate with changed-path Bloom filters	2020-05-11 09:33:56 -07:00
line-log.h	line-log: more responsive, incremental 'git log -L'	2020-05-11 09:33:56 -07:00
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 'hi/gpg-prefer-check-signature'	2020-03-26 17:11:20 -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	builtin/checkout: compute checkout metadata for checkouts	2020-03-16 11:37:02 -07:00
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	…
notes-utils.h	…
notes.c	Merge branch 'jh/notes-fanout-fix' into maint	2020-03-17 15:02:22 -07:00
notes.h	…
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	…
oidmap.c	…
oidmap.h	…
oidset.c	…
oidset.h	Merge branch 'en/oidset-uninclude-hashmap'	2020-03-25 13:57:44 -07:00
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.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	Merge branch 'bc/sha-256-part-1-of-4'	2020-03-26 17:11:20 -07:00
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	…
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	…
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	…
reachable.h	…
read-cache.c	…
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	…
rebase.h	…
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.h	…
repo-settings.c	config: set pack.useSparse=true by default	2020-03-20 14:22:31 -07:00
repository.c	repository: require a build flag to use SHA-256	2020-02-24 09:33:21 -08:00
repository.h	…
rerere.c	…
rerere.h	…
resolve-undo.c	…
resolve-undo.h	…
revision.c	diff.h: drop diff_tree_oid() & friends' return value	2020-06-08 12:28:49 -07:00
revision.h	revision.c: use Bloom filters to speed up path based revision walks	2020-04-06 11:08:37 -07:00
run-command.c	…
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 'bc/filter-process'	2020-03-26 17:11:20 -07:00
sequencer.h	Merge branch 'pw/advise-rebase-skip'	2020-03-25 13:57:43 -07:00
serve.c	…
serve.h	…
server-info.c	…
setup.c	Merge branch 'bc/sha-256-part-1-of-4'	2020-03-26 17:11:20 -07:00
sh-i18n--envsubst.c	…
sha1-array.c	…
sha1-array.h	…
sha1-file.c	Merge branch 'bc/sha-256-part-1-of-4'	2020-03-26 17:11:20 -07:00
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	commit-slab: add a function to deep free entries on the slab	2020-06-08 12:28:49 -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.h	…
string-list.c	…
string-list.h	…
sub-process.c	…
sub-process.h	…
submodule-config.c	…
submodule-config.h	…
submodule.c	Merge branch 'dt/submodule-rm-with-stale-cache' into maint	2020-03-17 15:02:21 -07:00
submodule.h	get_superproject_working_tree(): return strbuf	2020-03-10 11:41:40 -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	…
transport.h	…
tree-diff.c	diff.h: drop diff_tree_oid() & friends' return value	2020-06-08 12:28:49 -07:00
tree-walk.c	tree-walk.c: don't match submodule entries for 'submod/anything'	2020-06-08 12:28:48 -07:00
tree-walk.h	…
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 'bc/filter-process'	2020-03-26 17:11:20 -07:00
unpack-trees.h	builtin/checkout: compute checkout metadata for checkouts	2020-03-16 11:37:02 -07:00
upload-pack.c	…
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	…
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 'bc/sha-256-part-1-of-4'	2020-03-26 17:11:20 -07:00
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-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). 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