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Michael Haggerty a933c23e66 commit: avoid race when creating orphan commits
If HEAD doesn't point at anything during the initial check, then we
should make sure that it *still* doesn't point at anything when we are
ready to update the reference. Otherwise, another process might commit
while we are working (e.g., while we are waiting for the user to edit
the commit message) and we will silently overwrite it.

This fixes a failing test in t7516.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Reviewed-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-02-17 11:24:20 -08:00
block-sha1
builtin commit: avoid race when creating orphan commits 2015-02-17 11:24:20 -08:00
compat Merge branch 'dm/compat-s-ifmt-for-zos' 2014-12-22 12:27:16 -08:00
contrib Merge branch 'cj/log-invert-grep' 2015-02-11 13:42:39 -08:00
Documentation Merge branch 'ah/usage-strings' 2015-02-11 13:44:20 -08:00
ewah
git-gui
gitk-git
gitweb
mergetools
perl Git::SVN: handle missing ref_id case correctly 2015-01-15 08:35:55 +00:00
po l10n: ca.po: Fix trailing whitespace 2015-01-30 15:02:34 -07:00
ppc
t commit: avoid race when creating orphan commits 2015-02-17 11:24:20 -08:00
templates
vcs-svn
xdiff
.gitattributes
.gitignore
.mailmap
abspath.c
aclocal.m4
advice.c standardize usage info string format 2015-01-14 09:32:04 -08:00
advice.h
alias.c
alloc.c
archive-tar.c
archive-zip.c
archive.c standardize usage info string format 2015-01-14 09:32:04 -08:00
archive.h
argv-array.c
argv-array.h
attr.c
attr.h
base85.c
bisect.c Merge branch 'jc/merge-bases' 2015-01-07 12:55:05 -08:00
bisect.h
blob.c
blob.h
branch.c ref_transaction_update(): remove "have_old" parameter 2015-02-17 11:22:50 -08:00
branch.h
builtin.h
bulk-checkin.c
bulk-checkin.h
bundle.c
bundle.h
cache-tree.c
cache-tree.h
cache.h refs.c: change some "flags" to "unsigned int" 2015-02-17 11:22:29 -08:00
check-builtins.sh
check-racy.c
check_bindir
color.c parse_color: fix return value for numeric color values 0-8 2015-01-20 15:56:03 -08:00
color.h
column.c
column.h
combine-diff.c
command-list.txt
commit-slab.h
commit.c Merge branch 'jc/merge-bases' 2015-01-07 12:55:05 -08:00
commit.h shallow.c: make check_shallow_file_for_update() static 2015-01-15 11:05:48 -08:00
config.c Merge branch 'jk/blame-commit-label' 2015-02-11 13:39:50 -08:00
config.mak.in
config.mak.uname configure.ac: check for clock_gettime and CLOCK_MONOTONIC 2015-01-09 15:33:39 -08:00
configure.ac configure.ac: check for HMAC_CTX_cleanup 2015-01-09 15:33:57 -08:00
connect.c Merge branch 'mh/simplify-repack-without-refs' 2014-12-22 12:26:50 -08:00
connect.h
connected.c
connected.h
convert.c
convert.h
copy.c
COPYING
credential-cache--daemon.c
credential-cache.c
credential-store.c standardize usage info string format 2015-01-14 09:32:04 -08:00
credential.c Merge branch 'jk/credential-quit' 2014-12-22 12:27:20 -08:00
credential.h
csum-file.c
csum-file.h
ctype.c
daemon.c
date.c Merge branch 'jk/approxidate-avoid-y-d-m-over-future-dates' into maint 2015-01-12 14:01:18 -08:00
decorate.c
decorate.h
delta.h
diff-delta.c
diff-lib.c
diff-no-index.c
diff.c
diff.h
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
exec_cmd.c Merge branch 'jc/exec-cmd-system-path-leak-fix' 2014-12-22 12:27:01 -08:00
exec_cmd.h
fast-import.c ref_transaction_update(): remove "have_old" parameter 2015-02-17 11:22:50 -08:00
fetch-pack.c
fetch-pack.h
fmt-merge-msg.h
fsck.c Merge branch 'js/fsck-tag-validation' 2014-12-22 12:27:41 -08:00
fsck.h
generate-cmdlist.sh
gettext.c
gettext.h gettext.h: add parentheses around N_ expansion if supported 2015-01-12 11:10:19 -08:00
git-add--interactive.perl
git-am.sh
git-archimport.perl
git-bisect.sh standardize usage info string format 2015-01-14 09:32:04 -08:00
git-compat-util.h Merge branch 'km/gettext-n' 2015-02-11 13:42:00 -08:00
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 Merge branch 'ld/p4-submit-hint' 2015-02-11 13:39:44 -08:00
git-parse-remote.sh
git-pull.sh
git-quiltimport.sh
git-rebase--am.sh
git-rebase--interactive.sh
git-rebase--merge.sh
git-rebase.sh
git-relink.perl
git-remote-testgit.sh
git-request-pull.sh
git-send-email.perl Merge branch 'lh/send-email-hide-x-mailer' 2015-01-07 13:07:27 -08:00
git-sh-i18n.sh
git-sh-setup.sh Merge branch 'dw/shell-basename-dashdash-before-stripping-leading-dash-from-login' 2014-12-22 12:26:48 -08:00
git-stash.sh
git-submodule.sh
git-svn.perl git-svn: make it play nicely with submodules 2015-01-15 08:35:55 +00:00
GIT-VERSION-GEN Git 2.3 2015-02-05 13:23:56 -08:00
git-web--browse.sh
git.c Merge branch 'ah/usage-strings' 2015-02-11 13:44:20 -08:00
git.rc
git.spec.in
gpg-interface.c
gpg-interface.h
graph.c
graph.h
grep.c Merge branch 'jk/blame-commit-label' 2015-02-11 13:39:50 -08:00
grep.h
hashmap.c
hashmap.h
help.c
help.h
hex.c
http-backend.c
http-fetch.c
http-push.c http-push: trim trailing newline from remote symref 2015-01-14 10:28:02 -08:00
http-walker.c
http.c Merge branch 'jc/unused-symbols' 2015-02-11 13:44:07 -08:00
http.h http.c: make finish_active_slot() and handle_curl_result() static 2015-01-15 11:00:52 -08:00
ident.c
imap-send.c imap-send.c: set CURLOPT_USE_SSL to CURLUSESSL_TRY 2015-01-06 12:18:32 -08:00
INSTALL
khash.h
kwset.c
kwset.h
levenshtein.c
levenshtein.h
LGPL-2.1
line-log.c line-log.c: make line_log_data_init() static 2015-01-15 11:05:47 -08:00
line-log.h line-log.c: make line_log_data_init() static 2015-01-15 11:05:47 -08:00
line-range.c
line-range.h
list-objects.c rev-list: add an option to mark fewer edges as uninteresting 2014-12-29 09:57:55 -08:00
list-objects.h
ll-merge.c
ll-merge.h
lockfile.c
lockfile.h
log-tree.c
log-tree.h
mailmap.c
mailmap.h
Makefile Merge branch 'km/gettext-n' 2015-02-11 13:42:00 -08:00
match-trees.c
merge-blobs.c
merge-blobs.h
merge-recursive.c Merge branch 'jc/merge-bases' 2015-01-07 12:55:05 -08:00
merge-recursive.h
merge.c
mergesort.c
mergesort.h
name-hash.c
notes-cache.c
notes-cache.h
notes-merge.c Merge branch 'jc/merge-bases' 2015-01-07 12:55:05 -08:00
notes-merge.h
notes-utils.c
notes-utils.h
notes.c Merge branch 'jk/blame-commit-label' 2015-02-11 13:39:50 -08:00
notes.h
object.c
object.h
pack-bitmap-write.c
pack-bitmap.c Merge branch 'jc/unused-symbols' 2015-02-11 13:44:07 -08:00
pack-bitmap.h pack-bitmap.c: make pack_bitmap_filename() static 2015-01-15 11:04:10 -08:00
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.h
patch-delta.c
patch-ids.c
patch-ids.h
path.c
pathspec.c
pathspec.h
pkt-line.c
pkt-line.h
preload-index.c
pretty.c
prio-queue.c
prio-queue.h
progress.c
progress.h
prompt.c prompt.c: remove git_getpass() nobody uses 2015-01-15 11:02:06 -08:00
prompt.h prompt.c: remove git_getpass() nobody uses 2015-01-15 11:02:06 -08:00
quote.c
quote.h
reachable.c
reachable.h
read-cache.c
README
reflog-walk.c
reflog-walk.h
refs.c ref_transaction_delete(): remove "have_old" parameter 2015-02-17 11:23:48 -08:00
refs.h ref_transaction_delete(): remove "have_old" parameter 2015-02-17 11:23:48 -08:00
RelNotes Post 2.3 cycle (batch #1) 2015-02-11 13:54:03 -08:00
remote-curl.c
remote-testsvn.c
remote.c Merge branch 'jc/unused-symbols' 2015-02-11 13:44:07 -08:00
remote.h Merge branch 'jc/unused-symbols' 2015-02-11 13:44:07 -08:00
replace_object.c
rerere.c Merge branch 'jn/rerere-fail-on-auto-update-failure' 2015-02-11 13:41:45 -08:00
rerere.h
resolve-undo.c
resolve-undo.h
revision.c Merge branch 'jc/unused-symbols' 2015-02-11 13:44:07 -08:00
revision.h Merge branch 'jc/unused-symbols' 2015-02-11 13:44:07 -08:00
run-command.c Merge branch 'jc/hook-cleanup' 2014-12-22 12:27:10 -08:00
run-command.h Merge branch 'jc/hook-cleanup' 2014-12-22 12:27:10 -08:00
send-pack.c Merge branch 'sb/atomic-push' 2015-02-11 13:43:51 -08:00
send-pack.h send-pack.c: add --atomic command line argument 2015-01-07 19:56:44 -08:00
sequencer.c ref_transaction_update(): remove "have_old" parameter 2015-02-17 11:22:50 -08:00
sequencer.h
server-info.c update-server-info: create info/* with mode 0666 2015-01-06 13:46:52 -08:00
setup.c
sh-i18n--envsubst.c
sha1-array.c
sha1-array.h
sha1-lookup.c
sha1-lookup.h
sha1_file.c
sha1_name.c Merge branch 'mh/find-uniq-abbrev' into maint 2015-01-12 14:02:05 -08:00
shallow.c Merge branch 'jc/unused-symbols' 2015-02-11 13:44:07 -08:00
shell.c
shortlog.h
show-index.c
sideband.c
sideband.h
sigchain.c
sigchain.h
split-index.c
split-index.h
strbuf.c Merge branch 'jc/strbuf-add-lines-avoid-sp-ht-sequence' 2015-01-07 12:49:19 -08:00
strbuf.h
streaming.c
streaming.h
string-list.c Merge branch 'sb/string-list' 2014-12-22 12:27:30 -08:00
string-list.h Merge branch 'sb/string-list' 2014-12-22 12:27:30 -08:00
submodule.c Merge branch 'jc/merge-bases' 2015-01-07 12:55:05 -08:00
submodule.h
symlinks.c
tag.c
tag.h
tar.h
test-chmtime.c
test-config.c
test-ctype.c
test-date.c
test-delta.c
test-dump-cache-tree.c
test-dump-split-index.c
test-genrandom.c
test-hashmap.c Merge branch 'js/test-hashmap-squelch-gcc' 2014-12-22 12:27:46 -08:00
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
test-revision-walking.c
test-run-command.c
test-scrap-cache-tree.c
test-sha1-array.c
test-sha1.c
test-sha1.sh
test-sigchain.c
test-string-list.c
test-subprocess.c
test-svn-fe.c
test-urlmatch-normalization.c
test-wildmatch.c
thread-utils.c
thread-utils.h
trace.c configure.ac: check for clock_gettime and CLOCK_MONOTONIC 2015-01-09 15:33:39 -08:00
trace.h
trailer.c Merge branch 'cc/interpret-trailers-more' 2014-12-22 12:26:24 -08:00
trailer.h
transport-helper.c
transport.c Merge branch 'sb/atomic-push' 2015-02-11 13:43:51 -08:00
transport.h push.c: add an --atomic argument 2015-01-07 19:56:44 -08:00
tree-diff.c
tree-walk.c
tree-walk.h
tree.c
tree.h
unicode_width.h
unimplemented.sh
unix-socket.c
unix-socket.h
unpack-trees.c
unpack-trees.h
update_unicode.sh
upload-pack.c pack-objects: use --objects-edge-aggressive for shallow repos 2014-12-29 09:58:25 -08:00
url.c
url.h
urlmatch.c urlmatch.c: make match_urls() static 2015-01-15 11:05:48 -08:00
urlmatch.h urlmatch.c: make match_urls() static 2015-01-15 11:05:48 -08:00
usage.c
userdiff.c
userdiff.h
utf8.c Merge branch 'maint-2.1' into maint 2015-01-07 13:28:10 -08:00
utf8.h
varint.c
varint.h
version.c
version.h
versioncmp.c
walker.c ref_transaction_update(): remove "have_old" parameter 2015-02-17 11:22:50 -08:00
walker.h
wildmatch.c
wildmatch.h
wrap-for-bin.sh
wrapper.c
write_or_die.c
ws.c
wt-status.c
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,
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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/giteveryday.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
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("man gitcvs-migration" or "git help cvs-migration" if git is
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including full documentation and Git related tools.

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