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Jonathan Nieder 62a2d52514 branch -d: avoid repeated symref resolution
If a repository gets in a broken state with too much symref nesting,
it cannot be repaired with "git branch -d":

 $ git symbolic-ref refs/heads/nonsense refs/heads/nonsense
 $ git branch -d nonsense
 error: branch 'nonsense' not found.

Worse, "git update-ref --no-deref -d" doesn't work for such repairs
either:

 $ git update-ref -d refs/heads/nonsense
 error: unable to resolve reference refs/heads/nonsense: Too many levels of symbolic links

Fix both by teaching resolve_ref_unsafe a new RESOLVE_REF_NO_RECURSE
flag and passing it when appropriate.

Callers can still read the value of a symref (for example to print a
message about it) with that flag set --- resolve_ref_unsafe will
resolve one level of symrefs and stop there.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Reviewed-by: Ronnie Sahlberg <sahlberg@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-10-15 10:47:25 -07:00
block-sha1
builtin branch -d: avoid repeated symref resolution 2014-10-15 10:47:25 -07:00
compat mingw.h: add dummy functions for sigset_t operations 2014-09-22 13:41:52 -07:00
contrib completion: add --show-signature for log and show 2014-10-07 12:00:48 -07:00
Documentation Update draft release notes to 2.2 2014-10-14 10:59:04 -07:00
ewah
git-gui
gitk-git Merge branch 'master' of git://ozlabs.org/~paulus/gitk 2014-08-10 11:03:03 -07:00
gitweb
mergetools
perl
po l10n: de.po: use comma before "um" 2014-09-25 20:26:27 +02:00
ppc
t branch -d: avoid repeated symref resolution 2014-10-15 10:47:25 -07:00
templates pre-push.sample: Write error message to stderr 2014-09-11 15:26:35 -07:00
vcs-svn
xdiff
.gitattributes
.gitignore Merge branch 'rs/sha1-array-test' 2014-10-14 10:49:56 -07:00
.mailmap Sync with v2.0.3 2014-07-23 11:36:40 -07:00
abspath.c abspath: convert absolute_path() to strbuf 2014-08-26 11:06:06 -07:00
aclocal.m4
advice.c merge, pull: stop advising 'commit -a' in case of conflict 2014-08-28 10:29:53 -07:00
advice.h
alias.c alias.c: replace git_config() with git_config_get_string() 2014-08-07 13:33:29 -07:00
alloc.c alloc: factor out commit index 2014-07-28 10:14:33 -07:00
archive-tar.c Merge branch 'rs/child-process-init' 2014-09-11 10:33:27 -07:00
archive-zip.c
archive.c Merge branch 'nd/archive-pathspec' 2014-10-08 13:05:26 -07:00
archive.h
argv-array.c
argv-array.h
attr.c use REALLOC_ARRAY for changing the allocation size of arrays 2014-09-18 09:13:42 -07:00
attr.h
base85.c
bisect.c Merge branch 'jk/name-decoration-alloc' 2014-09-11 10:33:36 -07:00
bisect.h
blob.c add object_as_type helper for casting objects 2014-07-28 10:14:33 -07:00
blob.h
branch.c refs.c: change resolve_ref_unsafe reading argument to be a flags field 2014-10-15 10:47:24 -07:00
branch.h
builtin.h
bulk-checkin.c cleanups: ensure that git-compat-util.h is included first 2014-09-15 12:05:14 -07:00
bulk-checkin.h cleanups: ensure that git-compat-util.h is included first 2014-09-15 12:05:14 -07:00
bundle.c refs.c: change resolve_ref_unsafe reading argument to be a flags field 2014-10-15 10:47:24 -07:00
bundle.h
cache-tree.c lockfile.h: extract new header file for the functions in lockfile.c 2014-10-01 13:56:14 -07:00
cache-tree.h Merge branch 'dt/cache-tree-repair' 2014-09-11 10:33:32 -07:00
cache.h branch -d: avoid repeated symref resolution 2014-10-15 10:47:25 -07:00
check_bindir
check-builtins.sh
check-racy.c
color.c
color.h
column.c use REALLOC_ARRAY for changing the allocation size of arrays 2014-09-18 09:13:42 -07:00
column.h
combine-diff.c Merge branch 'jk/pretty-empty-format' into maint 2014-09-19 14:05:09 -07:00
command-list.txt
commit-slab.h use REALLOC_ARRAY for changing the allocation size of arrays 2014-09-18 09:13:42 -07:00
commit.c Merge branch 'jc/push-cert' 2014-10-08 13:05:25 -07:00
commit.h Merge branch 'da/styles' 2014-09-19 11:38:35 -07:00
config.c Merge branch 'mh/lockfile' 2014-10-14 10:49:45 -07:00
config.mak.in
config.mak.uname Merge branch 'jc/config-mak-document-darwin-vs-macosx' 2014-09-09 12:54:05 -07:00
configure.ac autoconf: check for setitimer() 2014-08-29 10:45:32 -07:00
connect.c Merge branch 'rs/more-uses-of-skip-prefix' 2014-09-19 11:38:35 -07:00
connect.h
connected.c run-command: introduce CHILD_PROCESS_INIT 2014-08-20 09:53:37 -07:00
connected.h
convert.c Merge branch 'sp/stream-clean-filter' 2014-10-08 13:05:32 -07:00
convert.h convert: stream from fd to required clean filter to reduce used address space 2014-08-28 10:25:15 -07:00
copy.c copy_fd(): do not close the input file descriptor 2014-08-28 10:25:14 -07:00
COPYING
credential-cache--daemon.c credential-cache: close stderr in daemon process 2014-09-16 11:11:58 -07:00
credential-cache.c run-command: introduce CHILD_PROCESS_INIT 2014-08-20 09:53:37 -07:00
credential-store.c lockfile.h: extract new header file for the functions in lockfile.c 2014-10-01 13:56:14 -07:00
credential.c run-command: introduce CHILD_PROCESS_INIT 2014-08-20 09:53:37 -07:00
credential.h
csum-file.c
csum-file.h
ctype.c
daemon.c Merge branch 'rs/daemon-fixes' 2014-10-14 10:49:23 -07:00
date.c Merge branch 'jk/commit-author-parsing' 2014-09-19 11:38:33 -07:00
decorate.c
decorate.h
delta.h
diff-delta.c
diff-lib.c
diff-no-index.c
diff.c Merge branch 'nd/large-blobs' 2014-09-11 10:33:33 -07:00
diff.h
diffcore-break.c
diffcore-delta.c
diffcore-order.c
diffcore-pickaxe.c
diffcore-rename.c diff.c: allow to pass more flags to diff_populate_filespec 2014-08-18 10:16:35 -07:00
diffcore.h diff --stat: mark any file larger than core.bigfilethreshold binary 2014-08-18 10:16:45 -07:00
dir.c Merge branch 'rs/strbuf-getcwd' 2014-09-02 13:28:44 -07:00
dir.h
editor.c run-command: introduce CHILD_PROCESS_INIT 2014-08-20 09:53:37 -07:00
entry.c
environment.c
exec_cmd.c use strbuf_add_absolute_path() to add absolute paths 2014-08-26 11:06:06 -07:00
exec_cmd.h
fast-import.c refs.c: pass the ref log message to _create/delete/update instead of _commit 2014-10-15 10:47:22 -07:00
fetch-pack.c lockfile.h: extract new header file for the functions in lockfile.c 2014-10-01 13:56:14 -07:00
fetch-pack.h
fmt-merge-msg.h
fsck.c fsck: check tag objects' headers 2014-09-11 10:44:26 -07:00
fsck.h fsck_object(): allow passing object data separately from the object itself 2014-09-10 13:54:21 -07:00
generate-cmdlist.sh
gettext.c
gettext.h
git-add--interactive.perl
git-am.sh
git-archimport.perl
git-bisect.sh grammofix in user-facing messages 2014-09-02 12:00:30 -07:00
git-compat-util.h wrapper.c: add a new function unlink_or_msg 2014-10-15 10:47:21 -07:00
git-cvsexportcommit.perl
git-cvsimport.perl
git-cvsserver.perl
git-difftool--helper.sh
git-difftool.perl
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
git-parse-remote.sh
git-pull.sh merge, pull: stop advising 'commit -a' in case of conflict 2014-08-28 10:29:53 -07:00
git-quiltimport.sh
git-rebase--am.sh rebase: omit patch-identical commits with --fork-point 2014-07-16 13:07:40 -07:00
git-rebase--interactive.sh rebase: omit patch-identical commits with --fork-point 2014-07-16 13:07:40 -07:00
git-rebase--merge.sh
git-rebase.sh rebase: omit patch-identical commits with --fork-point 2014-07-16 13:07:40 -07:00
git-relink.perl
git-remote-testgit.sh Merge branch 'ep/shell-assign-and-export-vars' into maint 2014-07-22 10:22:57 -07:00
git-request-pull.sh
git-send-email.perl
git-sh-i18n.sh
git-sh-setup.sh
git-stash.sh Merge branch 'da/rev-parse-verify-quiet' 2014-09-29 12:36:10 -07:00
git-submodule.sh
git-svn.perl git-svn: delay term initialization 2014-09-14 08:08:54 +00:00
GIT-VERSION-GEN Git 2.1.2 2014-09-29 22:15:00 -07:00
git-web--browse.sh
git.c Merge branch 'pr/use-default-sigpipe-setting' 2014-09-29 22:17:20 -07:00
git.rc
git.spec.in
gpg-interface.c Merge branch 'jc/push-cert' 2014-10-08 13:05:25 -07:00
gpg-interface.h gpg-interface: move parse_signature() to where it should be 2014-09-15 13:23:20 -07:00
graph.c Merge branch 'rs/graph-simplify' 2014-09-29 12:36:11 -07:00
graph.h
grep.c
grep.h
hashmap.c
hashmap.h
help.c Merge branch 'sb/help-unknown-command-sort-fix' 2014-09-26 14:39:49 -07:00
help.h
hex.c
http-backend.c refs.c: change resolve_ref_unsafe reading argument to be a flags field 2014-10-15 10:47:24 -07:00
http-fetch.c
http-push.c Merge branch 'ah/fix-http-push' into maint 2014-07-22 10:29:07 -07:00
http-walker.c http-walker: simplify process_alternates_response() using strbuf 2014-09-02 10:57:14 -07:00
http.c Merge branch 'da/include-compat-util-first-in-c' 2014-10-14 10:49:01 -07:00
http.h
ident.c Merge branch 'jk/commit-author-parsing' 2014-09-19 11:38:33 -07:00
imap-send.c Merge branch 'as/calloc-takes-nmemb-then-size' 2014-09-19 11:38:37 -07:00
INSTALL
khash.h use REALLOC_ARRAY for changing the allocation size of arrays 2014-09-18 09:13:42 -07:00
kwset.c
kwset.h
levenshtein.c
levenshtein.h
LGPL-2.1
line-log.c use REALLOC_ARRAY for changing the allocation size of arrays 2014-09-18 09:13:42 -07:00
line-log.h
line-range.c
line-range.h
list-objects.c
list-objects.h
ll-merge.c ll-merge.c: refactor read_merge_config() to use git_config_string() 2014-08-13 12:36:21 -07:00
ll-merge.h
lockfile.c Merge branch 'mh/lockfile-stdio' 2014-10-14 10:49:52 -07:00
lockfile.h fdopen_lock_file(): access a lockfile using stdio 2014-10-01 14:08:10 -07:00
log-tree.c Merge branch 'hj/pretty-naked-decoration' 2014-09-29 12:36:09 -07:00
log-tree.h pretty: add %D format specifier 2014-09-18 15:15:21 -07:00
mailmap.c
mailmap.h
Makefile Merge branch 'rs/sha1-array-test' 2014-10-14 10:49:56 -07:00
match-trees.c
merge-blobs.c
merge-blobs.h
merge-recursive.c Merge branch 'mh/lockfile' 2014-10-14 10:49:45 -07:00
merge-recursive.h
merge.c lockfile.h: extract new header file for the functions in lockfile.c 2014-10-01 13:56:14 -07:00
mergesort.c
mergesort.h
name-hash.c
notes-cache.c
notes-cache.h
notes-merge.c refs.c: change resolve_ref_unsafe reading argument to be a flags field 2014-10-15 10:47:24 -07:00
notes-merge.h
notes-utils.c
notes-utils.h
notes.c
notes.h
object.c Merge branch 'rs/realloc-array' 2014-09-26 14:39:45 -07:00
object.h Refactor type_from_string() to allow continuing after detecting an error 2014-09-10 13:52:13 -07:00
pack-bitmap-write.c use REALLOC_ARRAY for changing the allocation size of arrays 2014-09-18 09:13:42 -07:00
pack-bitmap.c use REALLOC_ARRAY for changing the allocation size of arrays 2014-09-18 09:13:42 -07:00
pack-bitmap.h
pack-check.c
pack-objects.c use REALLOC_ARRAY for changing the allocation size of arrays 2014-09-18 09:13:42 -07:00
pack-objects.h
pack-revindex.c
pack-revindex.h
pack-write.c pack-write: simplify index_pack_lockfile using skip_prefix() and xstrfmt() 2014-09-02 10:37:24 -07:00
pack.h
pager.c Merge branch 'rs/child-process-init' 2014-09-11 10:33:27 -07:00
parse-options-cb.c
parse-options.c Merge branch 'jc/parseopt-verify-short-name' 2014-09-19 11:38:38 -07:00
parse-options.h
patch-delta.c
patch-ids.c
patch-ids.h
path.c Merge branch 'mm/config-edit-global' 2014-09-02 13:23:20 -07:00
pathspec.c Merge branch 'maint' 2014-07-21 12:35:39 -07:00
pathspec.h
pkt-line.c
pkt-line.h
preload-index.c
pretty.c use skip_prefix() to avoid more magic numbers 2014-10-07 11:09:16 -07:00
prio-queue.c
prio-queue.h
progress.c
progress.h
prompt.c run-command: introduce CHILD_PROCESS_INIT 2014-08-20 09:53:37 -07:00
prompt.h
quote.c
quote.h
reachable.c reachable.c: add HEAD to reachability starting commits 2014-09-03 10:47:44 -07:00
reachable.h
read-cache.c lockfile.h: extract new header file for the functions in lockfile.c 2014-10-01 13:56:14 -07:00
README
reflog-walk.c refs.c: change resolve_ref_unsafe reading argument to be a flags field 2014-10-15 10:47:24 -07:00
reflog-walk.h stylefix: asterisks stick to the variable, not the type 2014-09-02 11:33:32 -07:00
refs.c branch -d: avoid repeated symref resolution 2014-10-15 10:47:25 -07:00
refs.h branch -d: avoid repeated symref resolution 2014-10-15 10:47:25 -07:00
RelNotes Git 2.1.2 2014-09-29 22:15:00 -07:00
remote-curl.c Merge branch 'jc/push-cert' 2014-10-08 13:05:25 -07:00
remote-testsvn.c run-command: introduce CHILD_PROCESS_INIT 2014-08-20 09:53:37 -07:00
remote.c refs.c: change resolve_ref_unsafe reading argument to be a flags field 2014-10-15 10:47:24 -07:00
remote.h use a hashmap to make remotes faster 2014-07-30 11:29:33 -07:00
replace_object.c
rerere.c lockfile.h: extract new header file for the functions in lockfile.c 2014-10-01 13:56:14 -07:00
rerere.h rerere.h: mark string for translation 2014-09-15 11:29:46 -07:00
resolve-undo.c
resolve-undo.h
revision.c use REALLOC_ARRAY for changing the allocation size of arrays 2014-09-18 09:13:42 -07:00
revision.h
run-command.c run-command: inline prepare_run_command_v_opt() 2014-08-20 09:56:12 -07:00
run-command.h run-command: introduce child_process_init() 2014-08-20 09:54:58 -07:00
send-pack.c Merge branch 'jc/push-cert' 2014-10-08 13:05:25 -07:00
send-pack.h signed push: add "pushee" header to push certificate 2014-09-15 13:23:28 -07:00
sequencer.c refs.c: change resolve_ref_unsafe reading argument to be a flags field 2014-10-15 10:47:24 -07:00
sequencer.h
server-info.c server-info: clean up after writing info/packs 2014-09-15 11:39:54 -07:00
setup.c Merge branch 'rs/strbuf-getcwd' 2014-09-02 13:28:44 -07:00
sh-i18n--envsubst.c use REALLOC_ARRAY for changing the allocation size of arrays 2014-09-18 09:13:42 -07:00
sha1_file.c Merge branch 'mh/lockfile' 2014-10-14 10:49:45 -07:00
sha1_name.c refs: make rev-parse --quiet actually quiet 2014-09-19 10:46:15 -07:00
sha1-array.c
sha1-array.h
sha1-lookup.c sha1-lookup: handle duplicates in sha1_pos() 2014-10-01 13:32:19 -07:00
sha1-lookup.h
shallow.c lockfile.h: extract new header file for the functions in lockfile.c 2014-10-01 13:56:14 -07:00
shell.c
shortlog.h
show-index.c
sideband.c
sideband.h
sigchain.c cleanups: ensure that git-compat-util.h is included first 2014-09-15 12:05:14 -07:00
sigchain.h
split-index.c
split-index.h
strbuf.c Merge branch 'rs/export-strbuf-addchars' 2014-09-19 11:38:39 -07:00
strbuf.h Merge branch 'rs/export-strbuf-addchars' 2014-09-19 11:38:39 -07:00
streaming.c
streaming.h
string-list.c use REALLOC_ARRAY for changing the allocation size of arrays 2014-09-18 09:13:42 -07:00
string-list.h string-list: add string_list initializer helper function 2014-07-21 10:23:36 -07:00
submodule.c run-command: introduce CHILD_PROCESS_INIT 2014-08-20 09:53:37 -07:00
submodule.h
symlinks.c
tag.c gpg-interface: move parse_signature() to where it should be 2014-09-15 13:23:20 -07:00
tag.h gpg-interface: move parse_signature() to where it should be 2014-09-15 13:23:20 -07:00
tar.h
test-chmtime.c
test-config.c add tests for git_config_get_string_const() 2014-08-07 11:41:20 -07:00
test-ctype.c
test-date.c date: use strbufs in date-formatting functions 2014-08-27 10:32:56 -07:00
test-delta.c
test-dump-cache-tree.c Merge branch 'dt/cache-tree-repair' 2014-09-11 10:33:32 -07:00
test-dump-split-index.c
test-genrandom.c
test-hashmap.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
test-prio-queue.c
test-read-cache.c
test-regex.c cleanups: ensure that git-compat-util.h is included first 2014-09-15 12:05:14 -07:00
test-revision-walking.c
test-run-command.c run-command: introduce CHILD_PROCESS_INIT 2014-08-20 09:53:37 -07:00
test-scrap-cache-tree.c lockfile.h: extract new header file for the functions in lockfile.c 2014-10-01 13:56:14 -07:00
test-sha1-array.c sha1-array: add test-sha1-array and basic tests 2014-10-01 13:32:10 -07:00
test-sha1.c
test-sha1.sh
test-sigchain.c cleanups: ensure that git-compat-util.h is included first 2014-09-15 12:05:14 -07:00
test-string-list.c
test-subprocess.c run-command: introduce CHILD_PROCESS_INIT 2014-08-20 09:53:37 -07:00
test-svn-fe.c
test-urlmatch-normalization.c
test-wildmatch.c
thread-utils.c
thread-utils.h
trace.c Merge branch 'kb/perf-trace' 2014-09-19 11:38:39 -07:00
trace.h
transport-helper.c refs.c: change resolve_ref_unsafe reading argument to be a flags field 2014-10-15 10:47:24 -07:00
transport.c refs.c: change resolve_ref_unsafe reading argument to be a flags field 2014-10-15 10:47:24 -07:00
transport.h push: the beginning of "git push --signed" 2014-09-15 13:23:20 -07:00
tree-diff.c
tree-walk.c
tree-walk.h
tree.c add object_as_type helper for casting objects 2014-07-28 10:14:33 -07:00
tree.h
unicode_width.h
unimplemented.sh
unix-socket.c Merge branch 'rs/strbuf-getcwd' 2014-09-02 13:28:44 -07:00
unix-socket.h
unpack-trees.c Merge branch 'jn/unpack-trees-checkout-m-carry-deletion' into maint 2014-09-19 14:05:12 -07:00
unpack-trees.h
update_unicode.sh
upload-pack.c refs.c: change resolve_ref_unsafe reading argument to be a flags field 2014-10-15 10:47:24 -07:00
url.c
url.h
urlmatch.c
urlmatch.h
usage.c
userdiff.c
userdiff.h
utf8.c Merge branch 'rs/export-strbuf-addchars' 2014-09-19 11:38:39 -07:00
utf8.h
varint.c cleanups: ensure that git-compat-util.h is included first 2014-09-15 12:05:14 -07:00
varint.h cleanups: ensure that git-compat-util.h is included first 2014-09-15 12:05:14 -07:00
version.c
version.h
versioncmp.c
walker.c refs.c: pass the ref log message to _create/delete/update instead of _commit 2014-10-15 10:47:22 -07:00
walker.h
wildmatch.c
wildmatch.h
wrap-for-bin.sh
wrapper.c wrapper.c: add a new function unlink_or_msg 2014-10-15 10:47:21 -07:00
write_or_die.c refs: write packed_refs file using stdio 2014-09-10 10:58:32 -07:00
ws.c
wt-status.c refs.c: change resolve_ref_unsafe reading argument to be a flags field 2014-10-15 10:47:24 -07:00
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 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.