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Jakub Narebski fd49e56af6 gitweb: Fix "heads" view when there is no current branch
In a repository whose HEAD points to an unborn branch with no commits,
"heads" view and "summary" view (which shows what is shown in "heads"
view) compared the object names of commits at the tip of branches with the
output from "git rev-parse HEAD", which caused comparison of a string with
undef and resulted in a warning in the server log.

This can happen if non-bare repository (with default 'master' branch)
is updated not via committing but by other means like push to it, or
Gerrit.  It can happen also just after running "git checkout --orphan
<new branch>" but before creating any new commit on this branch.

Rewrite the comparison so that it also works when $head points at nothing;
in such a case, no branch can be "the current branch", add a test for it.
While at it, rename local variable $head to $head_at, as it points to
current commit rather than current branch name (HEAD contents).

The code still incorrectly shows all branches that point at the same
commit as what HEAD points as "the current branch", even when HEAD is
detached. Fixing this bug is outside the scope of this patch.

Reported-by: Rajesh Boyapati
Signed-off-by: Jakub Narebski <jnareb@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-17 08:25:30 -08:00
block-sha1
builtin Merge branch 'jk/maint-tag-show-fixes' into maint 2012-02-13 23:31:27 -08:00
compat Merge branch 'bw/inet-pton-ntop-compat' into maint 2012-02-13 23:26:31 -08:00
contrib completion: --edit and --no-edit for git-merge 2012-02-06 00:00:54 -08:00
Documentation Git 1.7.9.1 2012-02-14 09:53:38 -08:00
git-gui Merge branch 'master' of git://repo.or.cz/git-gui 2011-12-13 16:48:24 -08:00
git_remote_helpers
gitk-git Merge git://ozlabs.org/~paulus/gitk 2011-12-16 22:18:42 -08:00
gitweb gitweb: Fix "heads" view when there is no current branch 2012-02-17 08:25:30 -08:00
mergetools
perl Merge branch 'maint' 2012-01-03 13:48:00 -08:00
po i18n: add infrastructure for translating Git with gettext 2011-12-05 20:46:55 -08:00
ppc
t gitweb: Fix "heads" view when there is no current branch 2012-02-17 08:25:30 -08:00
templates
vcs-svn Fix a bitwise negation assignment issue spotted by Sun Studio 2011-12-21 10:19:40 -08:00
xdiff
.gitattributes
.gitignore Merge branch 'tr/cache-tree' 2011-12-19 16:05:20 -08:00
.mailmap
abspath.c
aclocal.m4
advice.c
advice.h
alias.c
alloc.c
archive-tar.c
archive-zip.c
archive.c Merge branch 'jk/maint-upload-archive' 2012-01-12 23:34:17 -08:00
archive.h
argv-array.c
argv-array.h
attr.c Merge branch 'maint-1.7.6' into maint-1.7.7 2012-01-11 19:11:00 -08:00
attr.h
base85.c
bisect.c
bisect.h
blob.c
blob.h
branch.c Merge branch 'jn/maint-sequencer-fixes' into maint 2011-12-28 11:32:39 -08:00
branch.h Merge branch 'jn/branch-move-to-self' 2011-12-13 22:53:08 -08:00
builtin.h Merge branch 'jk/upload-archive-use-start-command' 2011-12-16 22:33:30 -08:00
bulk-checkin.c
bulk-checkin.h
bundle.c Merge branch 'maint' 2012-01-03 13:48:00 -08:00
bundle.h
cache-tree.c Refactor cache_tree_update idiom from commit 2011-12-06 14:57:36 -08:00
cache-tree.h Refactor cache_tree_update idiom from commit 2011-12-06 14:57:36 -08:00
cache.h server_supports(): parse feature list more carefully 2012-01-08 14:26:28 -08:00
check-builtins.sh
check-racy.c
check_bindir
color.c
color.h
combine-diff.c pass struct commit to diff_tree_combined_merge() 2011-12-17 18:22:29 -08:00
command-list.txt
commit.c Merge branch 'jc/show-sig' 2012-01-06 12:44:07 -08:00
commit.h Merge branch 'jc/show-sig' 2012-01-06 12:44:07 -08:00
config.c Merge branch 'na/strtoimax' into maint 2011-12-28 11:32:33 -08:00
config.mak.in i18n: add infrastructure for translating Git with gettext 2011-12-05 20:46:55 -08:00
configure.ac i18n: add infrastructure for translating Git with gettext 2011-12-05 20:46:55 -08:00
connect.c server_supports(): parse feature list more carefully 2012-01-08 14:26:28 -08:00
connected.c
connected.h
convert.c Merge branch 'jc/maint-lf-to-crlf-keep-crlf' into maint 2011-12-28 11:42:27 -08:00
convert.h
copy.c
COPYING
credential-cache--daemon.c credentials: add "cache" helper 2011-12-11 23:16:25 -08:00
credential-cache.c credential-cache: ignore "connection refused" errors 2012-01-16 22:15:19 -08:00
credential-store.c credentials: add "store" helper 2011-12-12 16:09:38 -08:00
credential.c credential: use git_prompt instead of git_getpass 2011-12-12 16:09:39 -08:00
credential.h credential: make relevance of http path configurable 2011-12-11 23:16:25 -08:00
csum-file.c
csum-file.h
ctype.c
daemon.c i18n: add infrastructure for translating Git with gettext 2011-12-05 20:46:55 -08:00
date.c Merge branch 'jc/parse-date-raw' into maint 2012-02-13 11:42:15 -08:00
decorate.c
decorate.h
delta.h
diff-delta.c
diff-lib.c diff-index: enable recursive pathspec matching in unpack_trees 2012-01-18 15:44:02 -08:00
diff-no-index.c
diff.c Merge branch 'tr/maint-word-diff-incomplete-line' 2012-01-18 15:16:19 -08:00
diff.h pass struct commit to diff_tree_combined_merge() 2011-12-17 18:22:29 -08:00
diffcore-break.c
diffcore-delta.c
diffcore-order.c
diffcore-pickaxe.c
diffcore-rename.c
diffcore.h
dir.c
dir.h
editor.c
entry.c
environment.c Merge branch 'jc/stream-to-pack' 2011-12-16 22:33:40 -08:00
exec_cmd.c
exec_cmd.h
fast-import.c Appease Sun Studio by renaming "tmpfile" 2011-12-21 10:21:04 -08:00
fetch-pack.h
fixup-builtins
fmt-merge-msg.h
fsck.c
fsck.h
generate-cmdlist.sh
gettext.c i18n: add infrastructure for translating Git with gettext 2011-12-05 20:46:55 -08:00
gettext.h i18n: add infrastructure for translating Git with gettext 2011-12-05 20:46:55 -08:00
git-add--interactive.perl
git-am.sh Merge branch 'maint-1.7.7' into maint 2011-12-09 13:33:39 -08:00
git-archimport.perl
git-bisect.sh
git-compat-util.h Merge branch 'na/strtoimax' into maint 2011-12-28 11:32:33 -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
git-cvsserver.perl
git-difftool--helper.sh
git-difftool.perl
git-filter-branch.sh
git-instaweb.sh
git-lost-found.sh
git-merge-octopus.sh
git-merge-one-file.sh
git-merge-resolve.sh
git-mergetool--lib.sh
git-mergetool.sh mergetool: Provide an empty file when needed 2012-01-23 11:50:22 -08:00
git-parse-remote.sh
git-pull.sh Merge branch 'ab/pull-rebase-config' 2011-12-09 13:37:01 -08:00
git-quiltimport.sh
git-rebase--am.sh
git-rebase--interactive.sh Merge branch 'aw/rebase-i-stop-on-failure-to-amend' into maint 2011-12-28 11:32:34 -08:00
git-rebase--merge.sh
git-rebase.sh
git-relink.perl
git-remote-testgit.py
git-repack.sh
git-request-pull.sh request-pull: explicitly ask tags/$name to be pulled 2012-01-31 21:27:58 -08:00
git-send-email.perl send-email: multiedit is a boolean config option 2012-01-09 15:15:28 -08:00
git-sh-i18n.sh i18n: add infrastructure for translating Git with gettext 2011-12-05 20:46:55 -08:00
git-sh-setup.sh Merge branch 'jc/parse-date-raw' into maint 2012-02-13 11:42:15 -08:00
git-stash.sh stash: Don't fail if work dir contains file named 'HEAD' 2012-01-01 01:11:56 -08:00
git-submodule.sh submodule add: fix breakage when re-adding a deep submodule 2012-01-24 14:18:18 -08:00
git-svn.perl
GIT-VERSION-GEN Git 1.7.9.1 2012-02-14 09:53:38 -08:00
git-web--browse.sh
git.c dashed externals: kill children on exit 2012-01-08 15:07:20 -08:00
git.spec.in git.spec: Workaround localized messages not put in any RPM 2012-02-03 23:06:30 -08:00
gpg-interface.c verify_signed_buffer: fix stale comment 2012-01-05 13:02:26 -08:00
gpg-interface.h
graph.c
graph.h
grep.c grep: enable threading with -p and -W using lazy attribute lookup 2011-12-16 15:47:10 -08:00
grep.h grep: enable threading with -p and -W using lazy attribute lookup 2011-12-16 15:47:10 -08:00
hash.c
hash.h
help.c
help.h
hex.c
http-backend.c i18n: add infrastructure for translating Git with gettext 2011-12-05 20:46:55 -08:00
http-fetch.c Merge branch 'ab/enable-i18n' 2011-12-19 16:06:41 -08:00
http-push.c Merge branch 'ab/enable-i18n' 2011-12-19 16:06:41 -08:00
http-walker.c
http.c Merge branch 'jk/maint-push-over-dav' into maint 2011-12-28 11:32:37 -08:00
http.h Merge branch 'jk/maint-push-over-dav' into maint 2011-12-28 11:32:37 -08:00
ident.c
imap-send.c Sync with 1.7.6.6 2012-02-05 23:53:21 -08:00
INSTALL INSTALL: warn about recent Fedora breakage 2012-01-26 21:51:29 -08:00
kwset.c
kwset.h
levenshtein.c
levenshtein.h
LGPL-2.1
list-objects.c
list-objects.h
ll-merge.c
ll-merge.h
lockfile.c
log-tree.c Merge branch 'jc/show-sig' 2012-01-06 12:44:07 -08:00
log-tree.h
mailmap.c Merge branch 'ml/mailmap' into maint-1.7.6 2011-12-13 21:12:14 -08:00
mailmap.h
Makefile Merge branch 'mp/make-cleanse-x-for-exe' into maint 2012-02-13 23:26:25 -08:00
match-trees.c
merge-file.c
merge-file.h
merge-recursive.c Merge branch 'tr/cache-tree' 2011-12-19 16:05:20 -08:00
merge-recursive.h
name-hash.c
notes-cache.c Merge branch 'jc/show-sig' 2012-01-06 12:44:07 -08:00
notes-cache.h
notes-merge.c Merge branch 'jc/show-sig' 2012-01-06 12:44:07 -08:00
notes-merge.h Convert commit_tree() to take strbuf as message 2011-12-15 10:46:42 -08:00
notes.c
notes.h
object.c
object.h
pack-check.c
pack-refs.c
pack-refs.h
pack-revindex.c
pack-revindex.h
pack-write.c Appease Sun Studio by renaming "tmpfile" 2011-12-21 10:21:04 -08:00
pack.h Merge branch 'jc/stream-to-pack' 2011-12-16 22:33:40 -08:00
pager.c
parse-options-cb.c
parse-options.c
parse-options.h
patch-delta.c
patch-ids.c
patch-ids.h
path.c
pkt-line.c
pkt-line.h
preload-index.c
pretty.c Merge branch 'jc/show-sig' 2012-01-06 12:44:07 -08:00
progress.c
progress.h
prompt.c prompt: use git_terminal_prompt 2011-12-12 16:09:38 -08:00
prompt.h prompt: use git_terminal_prompt 2011-12-12 16:09:38 -08:00
quote.c
quote.h
reachable.c
reachable.h
read-cache.c Merge branch 'rs/allocate-cache-entry-individually' 2011-12-09 13:36:56 -08:00
README
reflog-walk.c Merge branch 'jk/pretty-reglog-ent' 2011-12-22 11:27:28 -08:00
reflog-walk.h pretty: give placeholders to reflog identity 2011-12-16 13:00:15 -08:00
refs.c Merge branch 'mh/ref-api' 2011-12-20 13:25:53 -08:00
refs.h resolve_gitlink_ref(): improve docstring 2011-12-12 09:08:53 -08:00
RelNotes Prepare for 1.7.9.1 2012-02-06 00:03:18 -08:00
remote-curl.c Merge branch 'sp/smart-http-failure-to-push' into maint 2012-02-05 23:58:43 -08:00
remote.c Rename resolve_ref() to resolve_ref_unsafe() 2011-12-13 09:39:46 -08:00
remote.h
replace_object.c
rerere.c
rerere.h
resolve-undo.c
resolve-undo.h
revision.c Merge branch 'jc/maint-log-first-parent-pathspec' into maint 2012-02-05 23:58:42 -08:00
revision.h
run-command.c dashed externals: kill children on exit 2012-01-08 15:07:20 -08:00
run-command.h dashed externals: kill children on exit 2012-01-08 15:07:20 -08:00
send-pack.h
sequencer.c revert: stop creating and removing sequencer-old directory 2011-12-12 13:33:53 -08:00
sequencer.h revert: stop creating and removing sequencer-old directory 2011-12-12 13:33:53 -08:00
server-info.c
setup.c
sh-i18n--envsubst.c
sha1-array.c
sha1-array.h
sha1-lookup.c
sha1-lookup.h
sha1_file.c Appease Sun Studio by renaming "tmpfile" 2011-12-21 10:21:04 -08:00
sha1_name.c
shallow.c
shell.c i18n: add infrastructure for translating Git with gettext 2011-12-05 20:46:55 -08:00
shortlog.h
show-index.c i18n: add infrastructure for translating Git with gettext 2011-12-05 20:46:55 -08:00
sideband.c
sideband.h
sigchain.c
sigchain.h
strbuf.c Merge branch 'jk/credentials' 2011-12-19 16:05:16 -08:00
strbuf.h Merge branch 'jk/credentials' 2011-12-19 16:05:16 -08:00
streaming.c
streaming.h
string-list.c
string-list.h
submodule.c Merge branch 'jl/submodule-status-failure-report' into maint 2011-12-21 11:42:45 -08:00
submodule.h
symlinks.c
tag.c
tag.h
tar.h
test-chmtime.c
test-credential.c introduce credentials API 2011-12-11 23:16:24 -08:00
test-ctype.c
test-date.c
test-delta.c
test-dump-cache-tree.c Refactor cache_tree_update idiom from commit 2011-12-06 14:57:36 -08:00
test-genrandom.c
test-index-version.c
test-line-buffer.c
test-match-trees.c
test-mktemp.c
test-obj-pool.c
test-parse-options.c
test-path-utils.c
test-run-command.c
test-scrap-cache-tree.c Add test-scrap-cache-tree 2011-12-06 14:52:18 -08:00
test-sha1.c
test-sha1.sh
test-sigchain.c
test-string-pool.c
test-subprocess.c
test-svn-fe.c
test-treap.c Fix a bitwise negation assignment issue spotted by Sun Studio 2011-12-21 10:19:40 -08:00
thread-utils.c
thread-utils.h
trace.c
transport-helper.c
transport.c Merge branch 'maint' 2012-01-04 11:21:42 -08:00
transport.h
tree-diff.c use custom rename score during --follow 2011-12-16 12:33:49 -08:00
tree-walk.c Document limited recursion pathspec matching with wildcards 2012-01-14 18:39:04 -08:00
tree-walk.h
tree.c
tree.h
unimplemented.sh
unix-socket.c unix-socket: do not let close() or chdir() clobber errno during cleanup 2012-01-11 17:37:10 -08:00
unix-socket.h credentials: add "cache" helper 2011-12-11 23:16:25 -08:00
unpack-trees.c
unpack-trees.h
upload-pack.c server_supports(): parse feature list more carefully 2012-01-08 14:26:28 -08:00
url.c
url.h
usage.c
userdiff.c Merge branch 'tr/userdiff-c-returns-pointer' into maint 2011-12-21 11:42:45 -08:00
userdiff.h
utf8.c
utf8.h
walker.c
walker.h
wrap-for-bin.sh i18n: add infrastructure for translating Git with gettext 2011-12-05 20:46:55 -08:00
wrapper.c
write_or_die.c
ws.c
wt-status.c Convert resolve_ref+xstrdup to new resolve_refdup function 2011-12-13 09:26:52 -08:00
wt-status.h
xdiff-interface.c
xdiff-interface.h
zlib.c

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

	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.
It was originally written by Linus Torvalds with help of a group of
hackers around the net. It is currently maintained by Junio C Hamano.

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. 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://marc.theaimsgroup.com/?l=git and other archival sites.

The messages titled "A note from the maintainer", "What's in
git.git (stable)" and "What's cooking in git.git (topics)" and
the discussion following them on the mailing list give a good
reference for project status, development direction and
remaining tasks.