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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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Doug Bell 3f3d0cea61 show-ref: make --head always show the HEAD ref 
The docs seem to say that doing

	git show-ref --head --tags

would show both the HEAD ref and all the tag refs. However, doing
both --head and either of --tags or --heads would filter out the HEAD
ref.

Also update the documentation to describe the new behavior and add
tests for the show-ref command.

[jc: Doug did proofread the tests, but it was done by me and bugs in
it are mine].

Signed-off-by: Doug Bell <madcityzen@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-17 17:52:28 -07:00
block-sha1
builtin show-ref: make --head always show the HEAD ref 2013-07-17 17:52:28 -07:00
compat Revert "compat: add strtok_r()" 2013-02-26 09:16:58 -08:00
contrib Merge branch 'mp/complete-paths' 2013-03-11 10:32:16 -07:00
Documentation show-ref: make --head always show the HEAD ref 2013-07-17 17:52:28 -07:00
git_remote_helpers git_remote_helpers: remove GIT-PYTHON-VERSION upon "clean" 2013-01-30 12:34:55 -08:00
git-gui git-gui 0.17.0 2012-10-17 15:55:46 -07:00
gitk-git Merge git://ozlabs.org/~paulus/gitk 2013-01-30 13:52:44 -08:00
gitweb gitweb/README: remove reference to git.kernel.org 2013-03-07 11:38:33 -08:00
mergetools Merge branch 'da/p4merge-mktemp-fix' 2013-02-14 16:05:56 -08:00
perl git svn: consistent spacing after "W:" in warnings 2013-03-08 09:53:57 +00:00
po l10n: zh_CN.po: translate 1 new message 2013-03-07 08:46:19 +08:00
ppc
t show-ref: make --head always show the HEAD ref 2013-07-17 17:52:28 -07:00
templates Add sample pre-push hook script 2013-01-18 11:13:22 -08:00
vcs-svn remote-svn: add incremental import 2012-10-07 14:10:17 -07:00
xdiff
.gitattributes
.gitignore gitk: Ignore gitk-wish buildproduct 2013-01-30 21:12:16 +11:00
.mailmap .mailmap: normalize emails for Linus Torvalds 2012-12-12 11:09:11 -08:00
abspath.c Introduce new function real_path_if_valid() 2012-10-29 02:34:58 -04:00
aclocal.m4 configure: use AC_LANG_PROGRAM consistently 2011-02-14 10:55:15 -08:00
advice.c push: introduce REJECT_FETCH_FIRST and REJECT_NEEDS_FORCE 2013-01-24 14:37:23 -08:00
advice.h push: introduce REJECT_FETCH_FIRST and REJECT_NEEDS_FORCE 2013-01-24 14:37:23 -08:00
alias.c
alloc.c
archive-tar.c archive-tar: use parse_config_key when parsing config 2013-01-23 08:41:50 -08:00
archive-zip.c Merge branch 'rs/zip-with-uncompressed-size-in-the-header' into maint 2013-01-20 17:22:27 -08:00
archive.c Add directory pattern matching to attributes 2012-12-17 22:07:23 -08:00
archive.h
argv-array.c Merge branch 'fa/remote-svn' 2012-10-25 06:42:02 -04:00
argv-array.h Merge branch 'fa/remote-svn' 2012-10-25 06:42:02 -04:00
attr.c Sync with 1.8.1.5 2013-03-01 13:17:18 -08:00
attr.h
base85.c
bisect.c Move estimate_bisect_steps to libgit.a 2012-10-29 03:08:30 -04:00
bisect.h Move print_commit_list to libgit.a 2012-10-29 03:08:30 -04:00
blob.c
blob.h
branch.c
branch.h
builtin.h Merge branch 'as/check-ignore' 2013-01-23 21:19:10 -08:00
bulk-checkin.c
bulk-checkin.h bulk-checkin: replace fast-import based implementation 2011-12-01 11:46:09 -08:00
bundle.c
bundle.h
cache-tree.c cache-tree: invalidate i-t-a paths after generating trees 2012-12-15 23:04:22 -08:00
cache-tree.h cache-tree: fix writing cache-tree when CE_REMOVE is present 2012-12-15 23:04:22 -08:00
cache.h Merge branch 'jc/push-reject-reasons' 2013-02-04 10:25:04 -08:00
check_bindir
check-builtins.sh
check-racy.c
color.c
color.h
column.c
column.h
combine-diff.c Merge branch 'jk/diff-graph-cleanup' 2013-02-14 10:29:59 -08:00
command-list.txt Merge branch 'as/check-ignore' 2013-01-23 21:19:10 -08:00
commit.c Move print_commit_list to libgit.a 2012-10-29 03:08:30 -04:00
commit.h Merge branch 'jk/read-commit-buffer-data-after-free' 2013-02-04 10:25:18 -08:00
config.c Merge branch 'jk/config-parsing-cleanup' 2013-02-04 10:24:50 -08:00
config.mak.in Merge branch 'ct/autoconf-htmldir' 2013-02-25 08:27:04 -08:00
config.mak.uname Revert "compat: add strtok_r()" 2013-02-26 09:16:58 -08:00
configure.ac Revert "compat: add strtok_r()" 2013-02-26 09:16:58 -08:00
connect.c
connected.c
connected.h
convert.c convert some config callbacks to parse_config_key 2013-01-23 08:41:50 -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 ctype: support iscntrl, ispunct, isxdigit and isprint 2012-10-15 14:58:16 -07:00
daemon.c
date.c
decorate.c
decorate.h
delta.h
diff-delta.c
diff-lib.c
diff-no-index.c
diff.c Merge branch 'mp/diff-algo-config' 2013-02-17 15:25:52 -08:00
diff.h Merge branch 'mp/diff-algo-config' 2013-02-17 15:25:52 -08:00
diffcore-break.c
diffcore-delta.c
diffcore-order.c Use xmemdupz() in many places. 2007-09-18 17:42:17 -07:00
diffcore-pickaxe.c pickaxe: use textconv for -S counting 2012-10-28 08:48:17 -04:00
diffcore-rename.c
diffcore.h
dir.c Merge branch 'nd/retire-fnmatch' 2013-01-25 12:34:55 -08:00
dir.h Merge branch 'as/check-ignore' 2013-01-23 21:19:10 -08:00
editor.c run-command: encode signal death as a positive integer 2013-01-06 11:09:18 -08:00
entry.c
environment.c Merge branch 'jc/custom-comment-char' 2013-02-04 10:23:49 -08:00
exec_cmd.c
exec_cmd.h
fast-import.c
fetch-pack.c Merge branch 'jk/gc-auto-after-fetch' 2013-02-01 12:40:16 -08:00
fetch-pack.h
fixup-builtins
fmt-merge-msg.h
fsck.c fsck: warn about ".git" in trees 2012-11-28 13:52:54 -08:00
fsck.h
generate-cmdlist.sh
gettext.c
gettext.h Merge branch 'nd/fetch-status-alignment' 2012-09-18 14:35:55 -07:00
git-add--interactive.perl
git-am.sh Merge branch 'jc/fake-ancestor-with-non-blobs' into maint 2013-02-07 15:14:22 -08:00
git-archimport.perl
git-bisect.sh
git-compat-util.h Revert "compat: add strtok_r()" 2013-02-26 09:16:58 -08:00
git-cvsexportcommit.perl git-cvsexportcommit: Fix calling Perl's rel2abs() on MSYS 2012-01-11 18:04:08 -08:00
git-cvsimport.perl cvsimport: format commit timestamp ourselves without using strftime 2013-02-09 14:41:49 -08:00
git-cvsserver.perl cvsserver: support -r and sticky tags for most operations 2012-10-16 16:17:54 -07:00
git-difftool--helper.sh difftool--helper: fix printf usage 2013-02-10 11:35:50 -08:00
git-difftool.perl git-difftool: use git-mergetool--lib for "--tool-help" 2013-01-25 11:08:55 -08:00
git-filter-branch.sh filter-branch: use git-sh-setup's ident parsing functions 2012-10-18 15:43:49 -07:00
git-instaweb.sh
git-lost-found.sh
git-merge-octopus.sh
git-merge-one-file.sh
git-merge-resolve.sh
git-mergetool--lib.sh doc: generate a list of valid merge tools 2013-02-02 21:46:52 -08:00
git-mergetool.sh Merge branch 'al/mergetool-printf-fix' 2013-02-14 10:29:37 -08:00
git-p4.py Merge branch 'pw/git-p4-on-cygwin' 2013-02-04 10:25:30 -08:00
git-parse-remote.sh push/pull: adjust missing upstream help text to changed interface 2012-11-08 11:32:38 -05:00
git-pull.sh git-pull: Avoid merge-base on detached head 2012-10-25 05:32:11 -04:00
git-quiltimport.sh
git-rebase--am.sh rebase: Handle cases where format-patch fails 2012-10-11 11:54:49 -07:00
git-rebase--interactive.sh Merge branch 'jk/rebase-i-comment-char' 2013-02-17 15:25:20 -08:00
git-rebase--merge.sh
git-rebase.sh rebase -i: Teach "--edit-todo" action 2012-09-17 20:59:14 -07:00
git-relink.perl
git-remote-testgit remote-testgit: implement the "done" feature manually 2012-11-29 12:18:45 -08:00
git-remote-testpy.py git-remote-testpy: fix path hashing on Python 3 2013-01-28 09:55:14 -08:00
git-repack.sh
git-request-pull.sh
git-send-email.perl Merge branch 'nz/send-email-headers-are-case-insensitive' into maint 2013-01-20 17:22:49 -08:00
git-sh-i18n.sh
git-sh-setup.sh Merge branch 'jc/maint-fbsd-sh-ifs-workaround' into maint 2013-01-08 11:17:01 -08:00
git-stash.sh
git-submodule.sh Allow custom "comment char" 2013-01-16 12:48:22 -08:00
git-svn.perl git-svn: Simplify calculation of GIT_DIR 2013-01-24 10:21:23 +00:00
GIT-VERSION-GEN Git 1.8.2 2013-03-13 11:28:08 -07:00
git-web--browse.sh
git.c Merge branch 'maint' 2013-03-11 13:00:16 -07:00
git.spec.in
gpg-interface.c Merge branch 'sb/gpg-plug-fd-leak' into maint 2013-02-07 15:14:54 -08:00
gpg-interface.h Split GPG interface into its own helper library 2011-11-04 21:40:25 -07:00
graph.c graph: output padding for merge subsequent parents 2013-02-07 12:54:26 -08:00
graph.h graph.c: mark private file-scope symbols as static 2012-09-15 22:58:20 -07:00
grep.c Merge branch 'nd/grep-true-path' into maint 2012-11-18 19:32:30 -08:00
grep.h Merge branch 'nd/grep-true-path' into maint 2012-11-18 19:32:30 -08:00
hash.c
hash.h
help.c help: include <common-cmds.h> only in one file 2013-01-18 22:35:04 -08:00
help.h
hex.c
http-backend.c
http-fetch.c
http-push.c Allow building with xmlparse.h 2013-02-11 14:33:04 -08:00
http-walker.c
http.c http_request: reset "type" strbuf before adding 2013-02-06 07:50:56 -08:00
http.h Verify Content-Type from smart HTTP servers 2013-02-04 10:22:36 -08:00
ident.c Merge branch 'jn/do-not-drop-username-when-reading-from-etc-mailname' into maint 2013-02-04 10:04:26 -08:00
imap-send.c Sync with v1.8.1.4 2013-02-19 21:57:27 -08:00
INSTALL INSTALL: git-p4 does not support Python 3 2013-01-30 11:17:59 -08:00
kwset.c
kwset.h
levenshtein.c
levenshtein.h
LGPL-2.1
list-objects.c
list-objects.h
ll-merge.c convert some config callbacks to parse_config_key 2013-01-23 08:41:50 -08:00
ll-merge.h
lockfile.c
log-tree.c Merge branch 'ap/log-mailmap' 2013-01-20 17:06:53 -08:00
log-tree.h get_patch_filename(): split into two functions 2012-12-21 23:55:40 -08:00
mailmap.c Merge branch 'ap/log-mailmap' 2013-01-20 17:06:53 -08:00
mailmap.h mailmap: simplify map_user() interface 2013-01-10 12:33:08 -08:00
Makefile Merge branch 'jn/less-reconfigure' into maint 2013-02-27 09:59:19 -08:00
match-trees.c
merge-blobs.c Which merge_file() function do you mean? 2012-12-09 23:05:27 -08:00
merge-blobs.h Which merge_file() function do you mean? 2012-12-09 23:05:27 -08:00
merge-recursive.c diff: Introduce --diff-algorithm command line option 2013-01-16 09:41:18 -08:00
merge-recursive.h Move try_merge_command and checkout_fast_forward to libgit.a 2012-10-29 03:08:30 -04:00
merge.c Move try_merge_command and checkout_fast_forward to libgit.a 2012-10-29 03:08:30 -04:00
mergesort.c
mergesort.h
name-hash.c name-hash: allow hashing an empty string 2013-02-19 14:00:12 -08:00
notes-cache.c
notes-cache.h
notes-merge.c
notes-merge.h
notes.c Merge branch 'jc/same-encoding' into maint 2012-12-07 14:10:56 -08:00
notes.h format_note(): simplify API 2012-10-17 22:42:40 -07:00
object.c remove superfluous newlines in error messages 2012-04-30 15:45:51 -07:00
object.h
pack-check.c
pack-refs.c
pack-refs.h
pack-revindex.c
pack-revindex.h
pack-write.c
pack.h
pager.c Move setup_diff_pager to libgit.a 2012-10-29 03:08:30 -04:00
parse-options-cb.c
parse-options.c Merge branch 'ef/non-ascii-parse-options-error-diag' into maint 2013-02-27 10:04:26 -08:00
parse-options.h fix clang -Wunused-value warnings for error functions 2013-01-16 12:47:46 -08:00
patch-delta.c
patch-ids.c
patch-ids.h
path.c longest_ancestor_length(): require prefix list entries to be normalized 2012-10-29 02:34:58 -04:00
pathspec.c add.c: extract new die_if_path_beyond_symlink() for reuse 2013-01-06 14:26:37 -08:00
pathspec.h add.c: extract new die_if_path_beyond_symlink() for reuse 2013-01-06 14:26:37 -08:00
pkt-line.c
pkt-line.h
preload-index.c
pretty.c logmsg_reencode: lazily load missing commit buffers 2013-01-26 13:28:22 -08:00
progress.c
progress.h
prompt.c
prompt.h
quote.c
quote.h
reachable.c
reachable.h
read-cache.c Enable minimal stat checking 2013-01-22 09:33:16 -08:00
README Merge branch 'ta/doc-no-small-caps' 2013-02-05 16:13:32 -08:00
reflog-walk.c
reflog-walk.h
refs.c Merge branch 'jc/hidden-refs' 2013-02-17 15:25:57 -08:00
refs.h upload/receive-pack: allow hiding ref hierarchies 2013-02-07 13:48:47 -08:00
RelNotes Prepare for 1.8.1.5 2013-02-25 08:26:25 -08:00
remote-curl.c Verify Content-Type from smart HTTP servers 2013-02-04 10:22:36 -08:00
remote-testsvn.c remote-testsvn: fix unitialized variable 2012-12-15 10:43:11 -08:00
remote.c Merge branch 'jc/push-reject-reasons' 2013-02-04 10:25:04 -08:00
remote.h
replace_object.c
rerere.c rerere.c: mark private file-scope symbols as static 2012-09-15 22:58:20 -07:00
rerere.h rerere.c: mark private file-scope symbols as static 2012-09-15 22:58:20 -07:00
resolve-undo.c
resolve-undo.h
revision.c log: re-encode commit messages before grepping 2013-02-11 13:11:45 -08:00
revision.h Merge branch 'ap/log-mailmap' 2013-01-20 17:06:53 -08:00
run-command.c Merge branch 'sb/run-command-fd-error-reporting' 2013-02-07 14:41:42 -08:00
run-command.h hooks: Add function to check if a hook exists 2013-01-14 09:25:40 -08:00
send-pack.c push: introduce REJECT_FETCH_FIRST and REJECT_NEEDS_FORCE 2013-01-24 14:37:23 -08:00
send-pack.h
sequencer.c learn to pick/revert into unborn branch 2012-12-23 10:40:37 -08:00
sequencer.h Merge branch 'jc/make-static' 2012-09-18 14:37:46 -07:00
server-info.c
setup.c Merge branch 'mh/maint-ceil-absolute' 2013-02-27 09:47:28 -08:00
sh-i18n--envsubst.c Merge branch 'js/i18n-windows' 2011-06-29 17:03:13 -07:00
sha1_file.c link_alt_odb_entries(): take (char *, len) rather than two pointers 2012-11-08 12:06:53 -05:00
sha1_name.c
sha1-array.c sha1-array.c: mark a private file-scope symbol as static 2012-09-15 22:58:21 -07:00
sha1-array.h sha1-array.c: mark a private file-scope symbol as static 2012-09-15 22:58:21 -07:00
sha1-lookup.c
sha1-lookup.h
shallow.c upload-pack: fix off-by-one depth calculation in shallow clone 2013-01-11 09:10:57 -08:00
shell.c
shortlog.h
show-index.c
sideband.c
sideband.h
sigchain.c
sigchain.h
strbuf.c Allow custom "comment char" 2013-01-16 12:48:22 -08:00
strbuf.h Allow custom "comment char" 2013-01-16 12:48:22 -08:00
streaming.c
streaming.h
string-list.c Merge branch 'mh/ceiling' into maint 2013-01-28 11:07:18 -08:00
string-list.h Merge branch 'mh/ceiling' into maint 2013-01-28 11:07:18 -08:00
submodule.c submodule: simplify memory handling in config parsing 2013-01-23 12:58:27 -08:00
submodule.h submodule: display summary header in bold 2012-11-18 19:18:13 -08:00
symlinks.c symlinks.c: mark private file-scope symbols as static 2012-09-15 22:58:21 -07:00
tag.c
tag.h
tar.h
test-chmtime.c
test-ctype.c
test-date.c
test-delta.c
test-dump-cache-tree.c cache-tree: update API to take abitrary flags 2012-02-07 16:35:43 -08:00
test-genrandom.c
test-index-version.c
test-line-buffer.c
test-match-trees.c
test-mergesort.c
test-mktemp.c
test-parse-options.c
test-path-utils.c longest_ancestor_length(): require prefix list entries to be normalized 2012-10-29 02:34:58 -04:00
test-regex.c
test-revision-walking.c
test-run-command.c
test-scrap-cache-tree.c
test-sha1.c
test-sha1.sh
test-sigchain.c
test-string-list.c string_list_longest_prefix(): remove function 2012-10-29 02:34:58 -04:00
test-subprocess.c
test-svn-fe.c remote-svn: add incremental import 2012-10-07 14:10:17 -07:00
test-wildmatch.c Makefile: add USE_WILDMATCH to use wildmatch as fnmatch 2013-01-01 15:32:37 -08:00
thread-utils.c
thread-utils.h
trace.c trace.c: mark a private file-scope symbol as static 2012-09-15 22:58:21 -07:00
transport-helper.c push: introduce REJECT_FETCH_FIRST and REJECT_NEEDS_FORCE 2013-01-24 14:37:23 -08:00
transport.c Merge branch 'ft/transport-report-segv' into maint 2013-02-07 15:15:08 -08:00
transport.h Merge branch 'jc/push-reject-reasons' 2013-02-04 10:25:04 -08:00
tree-diff.c
tree-walk.c tree_entry_interesting: do basedir compare on wildcard patterns when possible 2012-11-26 11:16:34 -08:00
tree-walk.h
tree.c
tree.h
unimplemented.sh
unix-socket.c
unix-socket.h
unpack-trees.c Merge branch 'as/check-ignore' 2013-01-23 21:19:10 -08:00
unpack-trees.h
upload-pack.c Merge branch 'jc/hidden-refs' 2013-02-17 15:25:57 -08:00
url.c
url.h
usage.c make error()'s constant return value more visible 2012-12-15 10:45:58 -08:00
userdiff.c userdiff: drop parse_driver function 2013-01-23 08:41:51 -08:00
userdiff.h
utf8.c Merge branch 'jx/utf8-printf-width' into maint 2013-02-25 08:03:59 -08:00
utf8.h Merge branch 'jx/utf8-printf-width' into maint 2013-02-25 08:03:59 -08:00
varint.c
varint.h
version.c
version.h
walker.c
walker.h
wildmatch.c wildmatch: advance faster in <asterisk> + <literal> patterns 2013-01-01 15:32:37 -08:00
wildmatch.h wildmatch: support "no FNM_PATHNAME" mode 2013-01-01 15:32:37 -08:00
wrap-for-bin.sh
wrapper.c Merge branch 'jn/warn-on-inaccessible-loosen' into maint 2013-01-11 16:47:07 -08:00
write_or_die.c maybe_flush_or_die: move a too-loose Windows specific error 2012-10-17 00:33:42 -07:00
ws.c
wt-status.c Merge branch 'nd/status-show-in-progress' 2013-02-14 10:29:54 -08:00
wt-status.h status: show the branch name if possible in in-progress info 2013-02-05 08:21:02 -08:00
xdiff-interface.c
xdiff-interface.h
zlib.c

README 

////////////////////////////////////////////////////////////////

	Git - the stupid content tracker

////////////////////////////////////////////////////////////////

"git" can mean anything, 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

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.

See Documentation/gittutorial.txt to get started, then see
Documentation/everyday.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).

Many Git online resources are accessible from http://git-scm.com/
including full documentation and Git related tools.

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 http://news.gmane.org/gmane.comp.version-control.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.