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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brian m. carlson 068f85e313 sha1_file: introduce an nth_packed_object_oid function
There are places in the code where we would like to provide a struct
object_id *, yet read the hash directly from the pack.  Provide an
nth_packed_object_oid function that is similar to the
nth_packed_object_sha1 function.

In order to avoid a potentially invalid cast, nth_packed_object_oid
provides a variable into which to store the value, which it returns on
success; on error, it returns NULL, as nth_packed_object_sha1 does.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-22 10:12:15 -08:00
block-sha1
builtin refs: convert each_reflog_ent_fn to struct object_id 2017-02-22 10:12:15 -08:00
ci
compat Merge branch 'js/mingw-isatty' into maint 2017-01-31 13:32:11 -08:00
contrib Merge branch 'ew/complete-svn-authorship-options' 2017-02-10 12:52:24 -08:00
Documentation Git 2.12-rc1 2017-02-10 12:54:23 -08:00
ewah
git-gui
gitk-git Merge git://ozlabs.org/~paulus/gitk 2017-01-18 10:27:59 -08:00
gitweb Merge branch 'ab/gitweb-abbrev-links' 2016-10-26 13:14:46 -07:00
mergetools Merge branch 'da/mergetool-xxdiff-hotkey' into maint 2017-01-17 15:11:05 -08:00
perl Merge branch 'va/i18n-perl-scripts' 2016-12-27 00:11:40 -08:00
po gitk: Remove translated message from comments 2017-01-18 21:12:45 +11:00
ppc
refs refs: simplify parsing of reflog entries 2017-02-22 10:12:15 -08:00
t Merge branch 'jk/log-graph-name-only' 2017-02-10 12:52:27 -08:00
templates pre-receive.sample: mark it executable 2016-10-28 14:21:11 -07:00
vcs-svn
xdiff Merge branch 'jc/retire-compaction-heuristics' 2017-01-10 15:24:27 -08:00
.gitattributes
.gitignore relink: retire the command 2017-01-25 14:42:37 -08:00
.mailmap Merge branch 'sg/mailmap-self' 2017-02-02 13:36:57 -08:00
.travis.yml travis-ci: fix Perforce install on macOS 2017-01-23 10:55:00 -08:00
abspath.c Merge branch 'rs/absolute-pathdup' 2017-02-02 13:36:55 -08:00
aclocal.m4
advice.c
advice.h
alias.c
alloc.c
apply.c hold_locked_index(): align error handling with hold_lockfile_for_update() 2016-12-07 11:31:59 -08:00
apply.h
archive-tar.c
archive-zip.c archive-zip: load userdiff config 2017-01-07 18:49:30 -08:00
archive.c archive: read local configuration 2016-11-22 13:55:20 -08:00
archive.h archive: read local configuration 2016-11-22 13:55:20 -08:00
argv-array.c
argv-array.h
attr.c read info/{attributes,exclude} only when in repository 2016-10-26 13:30:51 -07:00
attr.h correct a few doubled-word nits in comments and documentation 2012-03-28 11:18:35 -07:00
base85.c
bisect.c bisect: improve English grammar of not-ancestors message 2016-12-05 14:50:38 -08:00
bisect.h
blob.c
blob.h
branch.c refs: add option core.logAllRefUpdates = always 2017-01-31 10:01:24 -08:00
branch.h create_branch: drop unused "head" parameter 2016-11-09 14:56:21 -08:00
builtin.h difftool: add a skeleton for the upcoming builtin 2017-01-17 13:32:47 -08:00
bulk-checkin.c compression: unify pack.compression configuration parsing 2016-11-15 21:16:22 -08:00
bulk-checkin.h
bundle.c
bundle.h
cache-tree.c
cache-tree.h
cache.h sha1_file: introduce an nth_packed_object_oid function 2017-02-22 10:12:15 -08:00
check_bindir
check-builtins.sh
check-racy.c
color.c Merge branch 'nd/log-graph-configurable-colors' 2017-02-02 13:36:58 -08:00
color.h
column.c
column.h
combine-diff.c diff_aligned_abbrev: use "struct oid" 2016-10-26 13:30:51 -07:00
command-list.txt relink: retire the command 2017-01-25 14:42:37 -08:00
commit-slab.h
commit.c commit: make ignore_non_trailer take buf/len 2016-11-29 14:22:18 -08:00
commit.h commit: make ignore_non_trailer take buf/len 2016-11-29 14:22:18 -08:00
common-main.c common-main: stop munging argv[0] path 2016-11-29 11:01:48 -08:00
config.c Merge branch 'nd/config-misc-fixes' into maint 2017-01-31 13:32:06 -08:00
config.mak.in
config.mak.uname xdiff: drop XDL_FAST_HASH 2016-12-06 13:27:11 -08:00
configure.ac Merge branch 'dp/autoconf-curl-ssl' into maint 2016-10-28 09:01:13 -07:00
connect.c Merge branch 'ls/filter-process' 2016-10-31 13:15:21 -07:00
connect.h
connected.c
connected.h
convert.c Merge branch 'jc/renormalize-merge-kill-safer-crlf' into maint 2017-01-17 14:49:28 -08:00
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 Merge branch 'jk/daemon-path-ok-check-truncation' into maint 2016-11-29 13:27:56 -08:00
date.c
decorate.c
decorate.h
delta.h
diff-delta.c
diff-lib.c commit: fix empty commit creation when there's no changes but ita entries 2016-10-24 10:48:23 -07:00
diff-no-index.c
diff.c Merge branch 'jk/log-graph-name-only' 2017-02-10 12:52:27 -08:00
diff.h Merge branch 'nd/ita-empty-commit' 2016-10-27 14:58:50 -07:00
diffcore-break.c Merge branch 'tk/diffcore-delta-remove-unused' into maint 2016-11-29 13:28:03 -08:00
diffcore-delta.c Merge branch 'tk/diffcore-delta-remove-unused' 2016-11-17 13:45:22 -08:00
diffcore-order.c
diffcore-pickaxe.c
diffcore-rename.c Merge branch 'tk/diffcore-delta-remove-unused' into maint 2016-11-29 13:28:03 -08:00
diffcore.h Merge branch 'tk/diffcore-delta-remove-unused' into maint 2016-11-29 13:28:03 -08:00
dir-iterator.c
dir-iterator.h
dir.c dir: avoid allocation in fill_directory() 2017-02-08 13:38:41 -08:00
dir.h submodule: add absorb-git-dir function 2016-12-12 15:15:07 -08:00
editor.c
entry.c
environment.c refs: add option core.logAllRefUpdates = always 2017-01-31 10:01:24 -08:00
exec_cmd.c Merge branch 'js/exec-path-coverity-workaround' into maint 2017-01-31 13:32:10 -08:00
exec_cmd.h common-main: stop munging argv[0] path 2016-11-29 11:01:48 -08:00
fast-import.c Merge branch 'mh/fast-import-notes-fix-new' into maint 2017-01-31 13:32:05 -08:00
fetch-pack.c fetch-pack.c: correct command at the beginning of an error message 2016-11-11 13:28:39 -08:00
fetch-pack.h
fmt-merge-msg.h
fsck.c fsck: lazily load types under --connectivity-only 2017-01-26 10:51:09 -08:00
fsck.h
generate-cmdlist.sh
gettext.c
gettext.h
git-add--interactive.perl Merge branch 'jc/retire-compaction-heuristics' 2017-01-10 15:24:27 -08:00
git-archimport.perl
git-bisect.sh
git-compat-util.h add QSORT_S 2017-01-23 11:02:36 -08:00
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 mergetool: honor mergetool.$tool.trustExitCode for built-in tools 2016-11-29 10:54:03 -08:00
git-mergetool.sh mergetool: fix running in subdir when rerere enabled 2017-01-10 13:22:51 -08:00
git-p4.py Merge branch 'gv/mingw-p4-mapuser' 2017-02-02 13:36:55 -08:00
git-parse-remote.sh
git-quiltimport.sh
git-rebase--am.sh
git-rebase--interactive.sh Merge branch 'jk/rebase-i-squash-count-fix' into maint 2017-01-31 13:32:07 -08:00
git-rebase--merge.sh
git-rebase.sh Merge branch 'nd/rebase-forget' 2016-12-19 14:45:35 -08:00
git-remote-testgit.sh
git-request-pull.sh request-pull: drop old USAGE stuff 2017-01-15 16:23:23 -08:00
git-send-email.perl i18n: send-email: mark composing message for translation 2016-12-14 11:00:06 -08:00
git-sh-i18n.sh
git-sh-setup.sh Merge branch 'va/i18n-even-more' 2016-12-27 00:11:45 -08:00
git-stash.sh Merge branch 'jk/stash-disable-renames-internally' into maint 2017-01-17 14:49:30 -08:00
git-submodule.sh Merge branch 'sb/submodule-update-initial-runs-custom-script' 2017-02-03 11:25:19 -08:00
git-svn.perl
GIT-VERSION-GEN Git 2.12-rc1 2017-02-10 12:54:23 -08:00
git-web--browse.sh
git.c Merge branch 'sb/unpack-trees-super-prefix' 2017-02-03 11:25:18 -08:00
git.rc
gpg-interface.c
gpg-interface.h gpg-interface, tag: add GPG_VERIFY_OMIT_STATUS flag 2017-01-17 16:10:22 -08:00
graph.c Merge branch 'nd/log-graph-configurable-colors' 2017-02-02 13:36:58 -08:00
graph.h
grep.c grep: add submodules as a grep source type 2016-12-22 11:47:33 -08:00
grep.h grep: add submodules as a grep source type 2016-12-22 11:47:33 -08:00
hashmap.c
hashmap.h
help.c help: improve is_executable() on Windows 2017-01-30 09:04:17 -08:00
help.h
hex.c hex: introduce parse_oid_hex 2017-02-20 01:11:26 -08:00
http-backend.c
http-fetch.c
http-push.c
http-walker.c Merge branch 'jk/http-walker-limit-redirect-2.9' 2016-12-19 14:45:32 -08:00
http.c Merge branch 'jk/http-walker-limit-redirect' into maint 2017-01-17 14:49:29 -08:00
http.h Merge branch 'jk/http-walker-limit-redirect' into maint 2017-01-17 14:49:29 -08:00
ident.c
imap-send.c Merge branch 'jc/cocci-xstrdup-or-null' into maint 2016-10-28 09:01:23 -07:00
INSTALL
iterator.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
list-objects.c
list-objects.h
list.h
ll-merge.c
ll-merge.h
lockfile.c lockfile: LOCK_REPORT_ON_ERROR 2016-12-07 11:31:59 -08:00
lockfile.h lockfile: move REPORT_ON_ERROR bit elsewhere 2016-12-27 09:12:09 -08:00
log-tree.c
log-tree.h
mailinfo.c Merge branch 'jt/mailinfo-fold-in-body-headers' into maint 2017-01-17 15:11:06 -08:00
mailinfo.h
mailmap.c
mailmap.h
Makefile Merge branch 'bc/use-asciidoctor-opt' 2017-02-02 13:36:57 -08:00
match-trees.c
merge-blobs.c
merge-blobs.h
merge-recursive.c Merge branch 'nd/qsort-in-merge-recursive' into maint 2017-01-17 15:19:03 -08:00
merge-recursive.h
merge.c lockfile: LOCK_REPORT_ON_ERROR 2016-12-07 11:31:59 -08:00
mergesort.c
mergesort.h
mru.c
mru.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.c
object.h
pack-bitmap-write.c
pack-bitmap.c sha1_file: rename git_open_noatime() to git_open() 2016-10-25 10:59:13 -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
pager.c
parse-options-cb.c
parse-options.c parse-options: print "fatal:" before usage_msg_opt() 2016-12-14 09:58:09 -08:00
parse-options.h
patch-delta.c
patch-ids.c
patch-ids.h
path.c Merge branch 'js/normalize-path-copy-ceil' into maint 2017-01-17 15:11:03 -08:00
pathspec.c pathspec: give better message for submodule related pathspec error 2017-01-09 15:19:22 -08:00
pathspec.h pathspec: copy and free owned memory 2017-01-08 18:04:17 -08:00
pkt-line.c
pkt-line.h
preload-index.c
pretty.c pretty: add %(trailers) format for displaying trailers of a commit message 2016-12-11 13:58:41 -08:00
prio-queue.c
prio-queue.h
progress.c
progress.h
prompt.c
prompt.h
quote.c
quote.h
reachable.c
reachable.h
read-cache.c Merge branch 'sb/in-core-index-doc' 2017-01-31 13:14:59 -08:00
README.md README: replace gmane link with public-inbox 2016-12-15 09:30:09 -08:00
ref-filter.c Convert remaining callers of resolve_refdup to object_id 2017-02-22 10:12:15 -08:00
ref-filter.h Merge branch 'st/verify-tag' 2017-01-31 13:14:58 -08:00
reflog-walk.c refs: convert each_reflog_ent_fn to struct object_id 2017-02-22 10:12:15 -08:00
reflog-walk.h
refs.c refs: convert each_reflog_ent_fn to struct object_id 2017-02-22 10:12:15 -08:00
refs.h refs: convert each_reflog_ent_fn to struct object_id 2017-02-22 10:12:15 -08:00
RelNotes Almost ready for 2.11.1 2017-01-17 15:19:11 -08:00
remote-curl.c Merge branch 'dt/smart-http-detect-server-going-away' into maint 2017-01-17 15:19:03 -08:00
remote-testsvn.c
remote.c Merge branch 'km/branch-get-push-while-detached' into maint 2017-01-31 13:32:08 -08:00
remote.h remote rename: more carefully determine whether a remote is configured 2017-01-19 14:04:23 -08:00
replace_object.c
rerere.c hold_locked_index(): align error handling with hold_lockfile_for_update() 2016-12-07 11:31:59 -08:00
rerere.h
resolve-undo.c
resolve-undo.h convert unmerge_cache to take struct pathspec 2013-07-15 10:56:08 -07:00
revision.c refs: convert each_reflog_ent_fn to struct object_id 2017-02-22 10:12:15 -08:00
revision.h
run-command.c Merge branch 'js/mingw-hooks-with-exe-suffix' 2017-02-02 13:36:57 -08:00
run-command.h execv_dashed_external: wait for child on signal death 2017-01-09 13:41:40 -08:00
send-pack.c
send-pack.h
sequencer.c sequencer (rebase -i): write out the final message 2017-01-17 14:06:01 -08:00
sequencer.h sequencer (rebase -i): learn about the 'verbose' mode 2017-01-09 14:57:29 -08:00
server-info.c
setup.c cache.h: expose the dying procedure for reading gitlinks 2017-01-26 11:00:58 -08:00
sh-i18n--envsubst.c
sha1_file.c sha1_file: introduce an nth_packed_object_oid function 2017-02-22 10:12:15 -08:00
sha1_name.c refs: convert each_reflog_ent_fn to struct object_id 2017-02-22 10:12:15 -08:00
sha1-array.c
sha1-array.h
sha1-lookup.c
sha1-lookup.h
shallow.c Merge branch 'nd/shallow-fixup' into maint 2017-01-17 15:11:05 -08:00
shell.c common-main: call git_setup_gettext() 2016-07-01 15:09:10 -07:00
shortlog.h shortlog: group by committer information 2016-12-15 16:19:13 -08:00
show-index.c
sideband.c
sideband.h
sigchain.c
sigchain.h
split-index.c split-index: s/eith/with/ typo fix 2016-11-01 11:48:02 -07:00
split-index.h
strbuf.c
strbuf.h
streaming.c
streaming.h
string-list.c string-list: use QSORT_S in string_list_sort() 2017-01-23 11:02:38 -08:00
string-list.h
submodule-config.c Merge branch 'bw/push-submodule-only' 2017-01-31 13:14:56 -08:00
submodule-config.h Merge branch 'bw/grep-recurse-submodules' 2017-01-18 15:12:11 -08:00
submodule.c submodule absorbing: fix worktree/gitdir pointers recursively for non-moves 2017-01-26 11:01:04 -08:00
submodule.h Merge branch 'bw/push-submodule-only' 2017-01-31 13:14:56 -08:00
symlinks.c
tag.c gpg-interface, tag: add GPG_VERIFY_OMIT_STATUS flag 2017-01-17 16:10:22 -08:00
tag.h
tar.h
tempfile.c
tempfile.h
thread-utils.c
thread-utils.h
tmp-objdir.c tmp-objdir: quote paths we add to alternates 2016-12-12 15:10:46 -08:00
tmp-objdir.h
trace.c
trace.h
trailer.c trailer: have function to describe trailer layout 2016-11-29 14:22:18 -08:00
trailer.h trailer: have function to describe trailer layout 2016-11-29 14:22:18 -08:00
transport-helper.c
transport.c Convert remaining callers of resolve_refdup to object_id 2017-02-22 10:12:15 -08:00
transport.h Merge branch 'bw/push-submodule-only' 2017-01-31 13:14:56 -08:00
tree-diff.c
tree-walk.c grep: enable recurse-submodules to work on <tree> objects 2016-12-22 11:47:33 -08:00
tree-walk.h
tree.c
tree.h
unicode_width.h unicode_width.h: update the width tables to Unicode 9.0 2016-12-14 09:48:07 -08:00
unimplemented.sh
unix-socket.c
unix-socket.h
unpack-trees.c Merge branch 'sb/unpack-trees-super-prefix' 2017-02-03 11:25:18 -08:00
unpack-trees.h
upload-pack.c upload-pack: optionally allow fetching any sha1 2016-11-18 13:06:14 -08:00
url.c
url.h
urlmatch.c
urlmatch.h
usage.c Merge branch 'jk/vreport-sanitize' 2017-01-31 13:14:56 -08:00
userdiff.c
userdiff.h
utf8.c
utf8.h
varint.c
varint.h
version.c
version.h
versioncmp.c versioncmp: generalize version sort suffix reordering 2017-01-12 12:25:24 -08:00
walker.c
walker.h
wildmatch.c
wildmatch.h
worktree.c Merge branch 'rs/absolute-pathdup' 2017-02-02 13:36:55 -08:00
worktree.h worktree: check if a submodule uses worktrees 2016-12-12 15:15:07 -08:00
wrap-for-bin.sh
wrapper.c
write_or_die.c
ws.c
wt-status.c refs: convert each_reflog_ent_fn to struct object_id 2017-02-22 10:12:15 -08:00
wt-status.h
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 http://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.

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