Git with broken hash generation to generate collisions between object IDs. Don't use this! https://undefinedbehavior.de/posts/commit-vandalism/
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Junio C Hamano b072a25fad receive: denyCurrentBranch=updateinstead should not blindly update
The handling of receive.denyCurrentBranch=updateInstead was added to
a switch statement that handles other values of the variable, but
all the other case arms only checked a condition to reject the
attempted push, or let later logic in the same function to still
intervene, so that a push that does not fast-forward (which is
checked after the switch statement in question) is still rejected.

But the handling of updateInstead incorrectly took immediate effect,
without giving other checks a chance to intervene.

Instead of calling update_worktree() that causes the side effect
immediately, just note the fact that we will need to call the
function later, and first give other checks a chance to reject the
request.  After the update-hook gets a chance to reject the push
(which happens as the last step in a series of checks), call
update_worktree() when we earlier detected the need to.

Reported-by: Rajesh Madamanchi
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-19 15:13:32 +09:00
.github
block-sha1
builtin receive: denyCurrentBranch=updateinstead should not blindly update 2018-10-19 15:13:32 +09:00
ci Merge branch 'nd/travis-gcc-8' 2018-05-30 14:04:08 +09:00
compat
contrib Merge branch 'ab/cred-netrc-no-autodie' 2018-06-18 10:18:42 -07:00
Documentation Git 2.18.1 2018-09-27 11:48:19 -07:00
ewah ewah_read_mmap: bounds-check mmap reads 2018-06-18 09:13:57 -07:00
git-gui
gitk-git Merge git://ozlabs.org/~paulus/gitk 2017-01-18 10:27:59 -08:00
gitweb
mergetools
perl Merge branch 'ab/git-svn-get-record-typofix' 2018-05-08 15:59:28 +09:00
po l10n: ko.po: Update Korean translation 2018-06-19 02:19:42 +09:00
ppc
refs Merge branch 'js/use-bug-macro' 2018-05-30 14:04:07 +09:00
sha1collisiondetection@19d97bf5af
sha1dc
t receive: denyCurrentBranch=updateinstead should not blindly update 2018-10-19 15:13:32 +09:00
templates
vcs-svn
xdiff
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.gitignore Merge branch 'nd/command-list' 2018-06-01 15:06:37 +09:00
.gitmodules
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.travis.yml travis-ci: run gcc-8 on linux-gcc jobs 2018-05-21 14:14:09 +09:00
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abspath.c
aclocal.m4
advice.c Merge branch 'js/deprecate-grafts' 2018-05-23 14:38:17 +09:00
advice.h
alias.c completion: add and use --list-cmds=alias 2018-05-21 13:23:14 +09:00
alias.h completion: add and use --list-cmds=alias 2018-05-21 13:23:14 +09:00
alloc.c
apply.c Merge branch 'js/use-bug-macro' 2018-05-30 14:04:07 +09:00
apply.h
archive-tar.c Merge branch 'js/use-bug-macro' 2018-05-30 14:04:07 +09:00
archive-zip.c
archive.c Use OPT_SET_INT_F() for cmdline option specification 2018-05-24 16:12:29 +09:00
archive.h
argv-array.c Merge branch 'ma/unpack-trees-free-msgs' 2018-05-30 21:51:29 +09:00
argv-array.h Merge branch 'ma/unpack-trees-free-msgs' 2018-05-30 21:51:29 +09:00
attr.c
attr.h
base85.c
bisect.c
bisect.h
blame.c Merge branch 'js/use-bug-macro' 2018-05-30 14:04:07 +09:00
blame.h
blob.c
blob.h
branch.c refspec: rename struct refspec to struct refspec_item 2018-05-18 06:19:41 +09:00
branch.h
builtin.h Merge branch 'ds/commit-graph' 2018-05-08 15:59:20 +09:00
bulk-checkin.c Merge branch 'js/use-bug-macro' 2018-05-30 14:04:07 +09:00
bulk-checkin.h
bundle.c Merge branch 'ma/lockfile-cleanup' 2018-05-30 14:04:05 +09:00
bundle.h
cache-tree.c
cache-tree.h
cache.h Merge branch 'nd/command-list' 2018-06-01 15:06:37 +09:00
chdir-notify.c
chdir-notify.h
check_bindir
check-builtins.sh
check-racy.c
checkout.c refspec: rename struct refspec to struct refspec_item 2018-05-18 06:19:41 +09:00
checkout.h
color.c Merge branch 'js/use-bug-macro' 2018-05-30 14:04:07 +09:00
color.h
column.c
column.h
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command-list.txt Merge branch 'nd/command-list' 2018-06-01 15:06:37 +09:00
commit-graph.c Merge branch 'sb/oid-object-info' 2018-05-23 14:38:16 +09:00
commit-graph.h
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commit.c Merge branch 'jk/index-pack-maint' 2018-06-13 12:50:46 -07:00
commit.h Merge branch 'nd/pack-struct-commit' 2018-05-30 14:04:08 +09:00
common-main.c Merge branch 'dj/runtime-prefix' 2018-05-08 15:59:17 +09:00
config.c Merge branch 'ma/config-store-data-clear' 2018-05-30 21:51:28 +09:00
config.h Merge branch 'tb/config-default' 2018-05-08 15:59:27 +09:00
config.mak.dev
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config.mak.uname Merge branch 'nd/repack-keep-pack' 2018-05-23 14:38:14 +09:00
configure.ac
connect.c Merge branch 'nd/command-list' 2018-06-01 15:06:37 +09:00
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convert.c Merge branch 'ls/checkout-encoding' 2018-05-08 15:59:22 +09:00
convert.h Merge branch 'ls/checkout-encoding' 2018-05-08 15:59:22 +09:00
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 Replace all die("BUG: ...") calls by BUG() ones 2018-05-06 19:06:13 +09:00
decorate.c
decorate.h
delta.h
detect-compiler
diff-delta.c
diff-lib.c
diff-no-index.c
diff.c Merge branch 'bc/object-id' 2018-05-30 14:04:10 +09:00
diff.h add status config and command line options for rename detection 2018-05-13 10:57:37 +09:00
diffcore-break.c
diffcore-delta.c
diffcore-order.c
diffcore-pickaxe.c regex: do not call regfree() if compilation fails 2018-05-21 13:58:32 +09:00
diffcore-rename.c
diffcore.h
dir-iterator.c
dir-iterator.h
dir.c Merge branch 'jk/ewah-bounds-check' 2018-06-18 11:23:22 -07:00
dir.h Merge branch 'bc/object-id' 2018-05-30 14:04:10 +09:00
editor.c
entry.c
environment.c Merge branch 'ls/checkout-encoding' 2018-05-08 15:59:22 +09:00
exec-cmd.c Merge branch 'js/runtime-prefix' 2018-05-08 15:59:34 +09:00
exec-cmd.h Merge branch 'dj/runtime-prefix' 2018-05-08 15:59:17 +09:00
fast-import.c Merge branch 'ma/lockfile-cleanup' 2018-05-30 14:04:05 +09:00
fetch-object.c
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fetch-pack.c Merge branch 'jt/partial-clone-proto-v2' 2018-05-30 14:04:10 +09:00
fetch-pack.h Merge branch 'bw/protocol-v2' 2018-05-08 15:59:16 +09:00
fmt-merge-msg.h
fsck.c Sync with 2.17.2 2018-09-27 11:45:01 -07:00
fsck.h fsck: detect gitmodules files 2018-05-21 23:55:12 -04:00
fsmonitor.c Merge branch 'jk/snprintf-truncation' 2018-05-30 21:51:28 +09:00
fsmonitor.h
generate-cmdlist.sh git: support --list-cmds=list-<category> 2018-05-21 13:23:14 +09:00
gettext.c Merge branch 'js/runtime-prefix' 2018-05-08 15:59:34 +09:00
gettext.h
git-add--interactive.perl
git-archimport.perl
git-bisect.sh
git-compat-util.h Merge branch 'js/use-bug-macro' 2018-05-30 14:04:07 +09:00
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
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git-p4.py Merge branch 'ld/git-p4-updates' 2018-06-18 10:18:41 -07:00
git-parse-remote.sh
git-quiltimport.sh
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git-rebase--interactive.sh Merge branch 'js/rebase-recreate-merge' 2018-06-01 15:06:40 +09:00
git-rebase--merge.sh
git-rebase.sh
git-remote-testgit.sh
git-request-pull.sh
git-send-email.perl Merge branch 'dd/send-email-reedit' 2018-05-30 14:04:03 +09:00
git-sh-i18n.sh
git-sh-setup.sh
git-stash.sh
git-submodule.sh Merge branch 'sb/submodule-update-try-harder' 2018-05-30 14:04:12 +09:00
git-svn.perl
GIT-VERSION-GEN Git 2.18.1 2018-09-27 11:48:19 -07:00
git-web--browse.sh
git.c Merge branch 'nd/command-list' 2018-06-01 15:06:37 +09:00
git.rc
gpg-interface.c
gpg-interface.h
graph.c
graph.h
grep.c Merge branch 'ma/regex-no-regfree-after-comp-fail' 2018-05-30 21:51:28 +09:00
grep.h
hash.h
hashmap.c
hashmap.h
help.c Merge branch 'nd/command-list' 2018-06-01 15:06:37 +09:00
help.h completion: allow to customize the completable command list 2018-05-21 13:23:14 +09:00
hex.c
http-backend.c Merge branch 'bw/protocol-v2' 2018-05-08 15:59:16 +09:00
http-fetch.c Merge branch 'ma/http-walker-no-partial' 2018-05-08 15:59:35 +09:00
http-push.c Merge branch 'bw/ref-prefix-for-configured-refspec' 2018-05-30 21:51:26 +09:00
http-walker.c
http.c Merge branch 'bw/remote-curl-compressed-responses' 2018-05-30 21:51:29 +09:00
http.h Merge branch 'jk/snprintf-truncation' 2018-05-30 21:51:28 +09:00
ident.c
imap-send.c
INSTALL
iterator.h
khash.h
kwset.c
kwset.h
levenshtein.c
levenshtein.h
LGPL-2.1
line-log.c Merge branch 'ds/lazy-load-trees' 2018-05-23 14:38:13 +09:00
line-log.h
line-range.c
line-range.h
list-objects-filter-options.c
list-objects-filter-options.h
list-objects-filter.c Merge branch 'sb/oid-object-info' 2018-05-23 14:38:16 +09:00
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 'jk/snprintf-truncation' 2018-05-30 21:51:28 +09:00
log-tree.h
ls-refs.c
ls-refs.h
mailinfo.c
mailinfo.h
mailmap.c
mailmap.h
Makefile Merge branch 'es/make-no-iconv' 2018-06-18 11:23:24 -07:00
match-trees.c
mem-pool.c
mem-pool.h
merge-blobs.c
merge-blobs.h
merge-recursive.c Merge branch 'en/rename-directory-detection' 2018-06-18 10:18:44 -07:00
merge-recursive.h merge: add merge.renames config setting 2018-05-08 16:19:41 +09:00
merge.c Merge branch 'ma/unpack-trees-free-msgs' 2018-05-30 21:51:29 +09:00
mergesort.c
mergesort.h
name-hash.c
notes-cache.c
notes-cache.h
notes-merge.c Merge branch 'js/use-bug-macro' 2018-05-30 14:04:07 +09:00
notes-merge.h
notes-utils.c
notes-utils.h
notes.c
notes.h
object-store.h Merge branch 'nd/pack-objects-pack-struct' 2018-05-23 14:38:19 +09:00
object.c Merge branch 'sb/oid-object-info' 2018-05-23 14:38:16 +09:00
object.h Merge branch 'nd/pack-objects-pack-struct' 2018-05-23 14:38:19 +09:00
oidmap.c
oidmap.h
oidset.c
oidset.h
pack-bitmap-write.c Merge branch 'js/use-bug-macro' 2018-05-30 14:04:07 +09:00
pack-bitmap.c Merge branch 'jk/ewah-bounds-check' 2018-06-18 11:23:22 -07:00
pack-bitmap.h
pack-check.c
pack-objects.c Merge branch 'js/use-bug-macro' 2018-05-30 14:04:07 +09:00
pack-objects.h Merge branch 'nd/pack-objects-pack-struct' 2018-05-23 14:38:19 +09:00
pack-revindex.c
pack-revindex.h
pack-write.c
pack.h
packfile.c Merge branch 'jl/zlib-restore-nul-termination' 2018-06-18 10:18:43 -07:00
packfile.h Merge branch 'bc/object-id' 2018-05-30 14:04:10 +09:00
pager.c Merge branch 'nd/command-list' 2018-06-01 15:06:37 +09:00
parse-options-cb.c
parse-options.c
parse-options.h
patch-delta.c
patch-ids.c
patch-ids.h
path.c Sync with Git 2.17.1 2018-05-29 17:10:05 +09:00
path.h
pathspec.c
pathspec.h
pkt-line.c Merge branch 'js/use-bug-macro' 2018-05-30 14:04:07 +09:00
pkt-line.h
preload-index.c
pretty.c Merge branch 'ds/lazy-load-trees' 2018-05-23 14:38:13 +09:00
pretty.h
prio-queue.c
prio-queue.h
progress.c
progress.h
prompt.c
prompt.h
protocol.c
protocol.h
quote.c
quote.h
reachable.c
reachable.h
read-cache.c Merge branch 'bc/object-id' 2018-05-30 14:04:10 +09:00
README.md note git-security@googlegroups.com in more places 2018-06-01 09:24:11 +09:00
ref-filter.c Merge branch 'js/use-bug-macro' 2018-05-30 14:04:07 +09:00
ref-filter.h Merge branch 'ot/libify-get-ref-atom-value' 2018-05-08 15:59:18 +09:00
reflog-walk.c
reflog-walk.h
refs.c Merge branch 'jk/snprintf-truncation' 2018-05-30 21:51:28 +09:00
refs.h Merge branch 'sb/object-store-replace' 2018-05-08 15:59:21 +09:00
refspec.c Merge branch 'bw/refspec-api' 2018-06-04 21:39:50 +09:00
refspec.h fetch: do not pass ref-prefixes for fetch by exact SHA1 2018-06-01 15:15:22 +09:00
RelNotes Git 2.18.1 2018-09-27 11:48:19 -07:00
remote-curl.c remote-curl: accept compressed responses with protocol v2 2018-05-23 10:24:13 +09:00
remote-testsvn.c
remote.c Merge branch 'bw/ref-prefix-for-configured-refspec' 2018-05-30 21:51:26 +09:00
remote.h Merge branch 'bw/ref-prefix-for-configured-refspec' 2018-05-30 21:51:26 +09:00
replace-object.c Merge branch 'sb/object-store-replace' 2018-05-23 14:38:09 +09:00
replace-object.h
repository.c Merge branch 'nd/repo-clear-keep-the-index' 2018-05-30 14:04:05 +09:00
repository.h Merge branch 'sb/object-store-replace' 2018-05-08 15:59:21 +09:00
rerere.c Merge branch 'ma/lockfile-cleanup' 2018-05-30 14:04:05 +09:00
rerere.h
resolve-undo.c
resolve-undo.h
revision.c Merge branch 'bc/object-id' 2018-05-30 14:04:10 +09:00
revision.h
run-command.c
run-command.h
send-pack.c
send-pack.h
sequencer.c Merge branch 'js/rebase-i-root-fix' 2018-06-18 11:23:22 -07:00
sequencer.h Merge branch 'js/sequencer-and-root-commits' 2018-05-30 14:04:04 +09:00
serve.c
serve.h
server-info.c
setup.c
sh-i18n--envsubst.c
sha1-array.c get_short_oid: sort ambiguous objects by type, then SHA-1 2018-05-11 14:43:23 +09:00
sha1-array.h get_short_oid: sort ambiguous objects by type, then SHA-1 2018-05-11 14:43:23 +09:00
sha1-file.c Merge branch 'rd/comment-typofix-in-sha1-file' 2018-06-18 10:18:40 -07:00
sha1-lookup.c
sha1-lookup.h
sha1-name.c Merge branch 'ab/get-short-oid' 2018-05-30 14:04:11 +09:00
sha1dc_git.c
sha1dc_git.h
shallow.c Merge branch 'js/use-bug-macro' 2018-05-30 14:04:07 +09:00
shell.c Merge branch 'nd/command-list' 2018-06-01 15:06:37 +09:00
shortlog.h
show-index.c
sideband.c
sideband.h
sigchain.c
sigchain.h
split-index.c
split-index.h
strbuf.c Merge branch 'js/use-bug-macro' 2018-05-30 14:04:07 +09:00
strbuf.h Merge branch 'en/rename-directory-detection-reboot' 2018-05-23 14:38:19 +09:00
streaming.c
streaming.h
string-list.c
string-list.h
sub-process.c
sub-process.h
submodule-config.c Sync with 2.17.2 2018-09-27 11:45:01 -07:00
submodule-config.h Merge branch 'bc/object-id' 2018-05-30 14:04:10 +09:00
submodule.c Merge branch 'jt/submodule-pull-recurse-rebase' 2018-06-04 21:39:48 +09:00
submodule.h Merge branch 'jt/submodule-pull-recurse-rebase' 2018-06-04 21:39:48 +09:00
symlinks.c
tag.c
tag.h
tar.h
tempfile.c
tempfile.h tempfile: rename 'template' variables 2018-02-22 10:08:05 -08:00
thread-utils.c
thread-utils.h
tmp-objdir.c
tmp-objdir.h
trace.c
trace.h
trailer.c
trailer.h
transport-helper.c remote: convert apply_refspecs to take a struct refspec 2018-05-18 06:19:43 +09:00
transport-internal.h
transport.c Merge branch 'bw/ref-prefix-for-configured-refspec' 2018-05-30 21:51:26 +09:00
transport.h Merge branch 'bw/ref-prefix-for-configured-refspec' 2018-05-30 21:51:26 +09:00
tree-diff.c
tree-walk.c
tree-walk.h
tree.c Merge branch 'ds/lazy-load-trees' 2018-05-23 14:38:13 +09:00
tree.h
unicode-width.h
unimplemented.sh
unix-socket.c
unix-socket.h
unpack-trees.c Merge branch 'ma/unpack-trees-free-msgs' 2018-05-30 21:51:29 +09:00
unpack-trees.h unpack_trees_options: free messages when done 2018-05-22 11:59:31 +09:00
upload-pack.c Merge branch 'jt/partial-clone-proto-v2' 2018-05-30 14:04:10 +09:00
upload-pack.h
url.c
url.h
urlmatch.c
urlmatch.h
usage.c Merge branch 'jk/snprintf-truncation' 2018-05-30 21:51:28 +09:00
userdiff.c
userdiff.h
utf8.c Sync with Git 2.17.1 2018-05-29 17:10:05 +09:00
utf8.h Sync with Git 2.17.1 2018-05-29 17:10:05 +09:00
varint.c
varint.h
version.c
version.h
versioncmp.c
walker.c Merge branch 'ds/lazy-load-trees' 2018-05-23 14:38:13 +09:00
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 Merge branch 'bc/object-id' 2018-05-30 14:04:10 +09:00
wt-status.h add status config and command line options for rename detection 2018-05-13 10:57:37 +09:00
xdiff-interface.c
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