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Jeff King 4783e7ea83 t0008: avoid SIGPIPE race condition on fifo
To test check-ignore's --stdin feature, we use two fifos to
send and receive data. We carefully keep a descriptor to its
input open so that it does not receive EOF between input
lines. However, we do not do the same for its output. That
means there is a potential race condition in which
check-ignore has opened the output pipe once (when we read
the first line), and then writes the second line before we
have re-opened the pipe.

In that case, check-ignore gets a SIGPIPE and dies. The
outer shell then tries to open the output fifo but blocks
indefinitely, because there is no writer.  We can fix it by
keeping a descriptor open through the whole procedure.

This should also help if check-ignore dies for any other
reason (we would already have opened the fifo and would
therefore not block, but just get EOF on read).

However, we are technically still susceptible to
check-ignore dying early, before we have opened the fifo.
This is an unlikely race and shouldn't generally happen in
practice, though, so we can hopefully ignore it.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-12 09:24:29 -07:00
Documentation Documentation: add caveats about I/O buffering for check-{attr,ignore} 2013-04-11 11:11:36 -07:00
block-sha1 Merge branch 'jn/block-sha1' into maint 2012-08-06 15:40:00 -07:00
builtin check-ignore: allow incremental streaming of queries via --stdin 2013-04-11 11:01:59 -07:00
compat Merge branch 'bw/maint-1.7.9-solaris-getpass' into maint-1.7.11 2012-08-24 12:05:11 -07:00
contrib add git-check-ignore sub-command 2013-01-06 14:26:38 -08:00
git-gui
git_remote_helpers
gitk-git Merge branch 'da/gitk-reload-tag-contents' into maint-1.7.11 2012-09-14 20:45:55 -07:00
gitweb Merge branch 'js/gitweb-path-info-unquote' into maint-1.7.11 2012-09-10 15:23:46 -07:00
mergetools
perl perl/Makefile: install Git::SVN::* when NO_PERL_MAKEMAKER=yes, too 2012-06-15 13:24:06 -07:00
po Update Swedish translation (1066t0f0u) 2012-07-01 23:04:09 +01:00
ppc
t t0008: avoid SIGPIPE race condition on fifo 2013-07-12 09:24:29 -07:00
templates
vcs-svn
xdiff
.gitattributes
.gitignore add git-check-ignore sub-command 2013-01-06 14:26:38 -08:00
.mailmap
COPYING
GIT-VERSION-GEN Git 1.7.11.7 2012-09-14 20:57:23 -07:00
INSTALL
LGPL-2.1
Makefile add git-check-ignore sub-command 2013-01-06 14:26:38 -08:00
README
RelNotes Git 1.7.11.7 2012-09-14 20:57:23 -07:00
abspath.c
aclocal.m4
advice.c Merge branch 'jk/maint-advise-vaddf' into maint 2012-07-30 13:05:25 -07:00
advice.h
alias.c
alloc.c
archive-tar.c archive: ustar header checksum is computed unsigned 2012-06-13 10:47:21 -07:00
archive-zip.c
archive.c
archive.h
argv-array.c
argv-array.h
attr.c dir.c: rename excluded() to is_excluded() 2012-12-28 12:07:46 -08:00
attr.h
base85.c
bisect.c
bisect.h
blob.c
blob.h
branch.c
branch.h
builtin.h add git-check-ignore sub-command 2013-01-06 14:26:38 -08:00
bulk-checkin.c
bulk-checkin.h
bundle.c
bundle.h
cache-tree.c
cache-tree.h
cache.h Merge branch 'jc/maint-config-exit-status' into maint-1.7.11 2012-09-11 11:09:09 -07:00
check-builtins.sh
check-racy.c
check_bindir
color.c
color.h
column.c
column.h
combine-diff.c Merge branch 'jk/maint-null-in-trees' into maint-1.7.11 2012-09-10 15:24:54 -07:00
command-list.txt add git-check-ignore sub-command 2013-01-06 14:26:38 -08:00
commit.c
commit.h
config.c
config.mak.in
configure.ac
connect.c git: Wrong parsing of ssh urls with IPv6 literals ignores port 2012-06-13 13:10:55 -07:00
connected.c
connected.h
convert.c
convert.h
copy.c
credential-cache--daemon.c
credential-cache.c
credential-store.c
credential.c
credential.h
csum-file.c
csum-file.h
ctype.c
daemon.c
date.c Merge branch 'jc/maint-filter-branch-epoch-date' into maint 2012-07-30 13:04:18 -07:00
decorate.c
decorate.h
delta.h
diff-delta.c
diff-lib.c diff: do not use null sha1 as a sentinel value 2012-07-29 15:04:32 -07:00
diff-no-index.c Merge branch 'tr/void-diff-setup-done' into maint-1.7.11 2012-09-11 10:53:40 -07:00
diff.c Merge branch 'ab/diff-write-incomplete-line' into maint-1.7.11 2012-09-11 11:08:30 -07:00
diff.h Merge branch 'tr/void-diff-setup-done' into maint-1.7.11 2012-09-11 10:53:40 -07:00
diffcore-break.c
diffcore-delta.c
diffcore-order.c
diffcore-pickaxe.c
diffcore-rename.c Merge branch 'jk/maint-null-in-trees' into maint-1.7.11 2012-09-10 15:24:54 -07:00
diffcore.h Merge branch 'jk/maint-null-in-trees' into maint-1.7.11 2012-09-10 15:24:54 -07:00
dir.c dir.c: improve docs for match_pathspec() and match_pathspec_depth() 2013-01-06 14:26:37 -08:00
dir.h dir.c: improve docs for match_pathspec() and match_pathspec_depth() 2013-01-06 14:26:37 -08:00
editor.c
entry.c
environment.c
exec_cmd.c
exec_cmd.h
fast-import.c
fetch-pack.h
fixup-builtins
fmt-merge-msg.h
fsck.c Merge branch 'jk/maint-null-in-trees' into maint-1.7.11 2012-09-10 15:24:54 -07:00
fsck.h
generate-cmdlist.sh
gettext.c
gettext.h
git-add--interactive.perl git-add--interactive.perl: Remove two unused variables 2012-06-25 10:06:09 -07:00
git-am.sh Merge branch 'pg/maint-1.7.9-am-where-is-patch' into maint 2012-07-30 13:04:39 -07:00
git-archimport.perl
git-bisect.sh
git-compat-util.h
git-cvsexportcommit.perl
git-cvsimport.perl
git-cvsserver.perl
git-difftool--helper.sh
git-difftool.perl
git-filter-branch.sh Merge branch 'jc/maint-filter-branch-epoch-date' into maint 2012-07-30 13:04:18 -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 mergetool: support --tool-help option like difftool does 2012-07-23 14:42:39 -07:00
git-mergetool.sh mergetool: style fixes 2012-08-23 21:30:51 -07:00
git-p4.py
git-parse-remote.sh
git-pull.sh
git-quiltimport.sh
git-rebase--am.sh
git-rebase--interactive.sh Merge branch 'mg/rebase-i-onto-reflog-in-full' into maint-1.7.11 2012-09-10 15:26:03 -07:00
git-rebase--merge.sh
git-rebase.sh Do not autosquash in case of an implied interactive rebase 2012-06-17 14:01:42 -07:00
git-relink.perl
git-remote-testgit.py
git-repack.sh
git-request-pull.sh
git-send-email.perl send-email: improve RFC2047 quote parsing 2012-07-31 15:05:53 -07:00
git-sh-i18n.sh
git-sh-setup.sh Merge branch 'jc/maint-protect-sh-from-ifs' into maint-1.7.11 2012-09-10 15:25:45 -07:00
git-stash.sh Merge branch 'ph/stash-rerere' into maint-1.7.11 2012-09-11 11:10:12 -07:00
git-submodule.sh Merge branch 'sz/submodule-force-update' into maint-1.7.11 2012-09-11 11:10:17 -07:00
git-svn.perl git-svn: use YAML format for mergeinfo cache when possible 2012-06-10 08:47:53 +00:00
git-web--browse.sh
git.c add git-check-ignore sub-command 2013-01-06 14:26:38 -08:00
git.spec.in
gpg-interface.c
gpg-interface.h
graph.c
graph.h
grep.c
grep.h
hash.c
hash.h
help.c
help.h
hex.c
http-backend.c
http-fetch.c
http-push.c
http-walker.c
http.c Merge branch 'jk/maint-http-half-auth-push' into maint-1.7.11 2012-09-12 13:58:23 -07:00
http.h http: factor out http error code handling 2012-08-27 10:49:09 -07:00
ident.c split_ident_line(): make best effort when parsing author/committer line 2012-08-31 14:54:18 -07:00
imap-send.c
kwset.c
kwset.h
levenshtein.c
levenshtein.h
list-objects.c
list-objects.h
ll-merge.c
ll-merge.h
lockfile.c
log-tree.c
log-tree.h
mailmap.c
mailmap.h
match-trees.c
merge-file.c
merge-file.h
merge-recursive.c Merge branch 'tr/void-diff-setup-done' into maint-1.7.11 2012-09-11 10:53:40 -07:00
merge-recursive.h
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 Merge branch 'tr/void-diff-setup-done' into maint-1.7.11 2012-09-11 10:53:40 -07:00
notes-merge.h
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
pack.h
pager.c
parse-options-cb.c
parse-options.c
parse-options.h
patch-delta.c
patch-ids.c diff_setup_done(): return void 2012-08-03 12:11:07 -07:00
patch-ids.h
path.c
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
progress.c
progress.h
prompt.c
prompt.h
quote.c
quote.h
reachable.c
reachable.h
read-cache.c Merge branch 'nd/index-errno' into maint-1.7.11 2012-09-11 10:53:21 -07:00
reflog-walk.c
reflog-walk.h
refs.c
refs.h
remote-curl.c http: prompt for credentials on failed POST 2012-08-27 10:49:09 -07:00
remote.c Merge branch 'jk/push-delete-ref-error-message' into maint 2012-07-22 13:04:25 -07:00
remote.h
replace_object.c
rerere.c rerere: make rr-cache fanout directory honor umask 2012-07-09 16:27:49 -07:00
rerere.h
resolve-undo.c
resolve-undo.h
revision.c Merge branch 'jc/dotdot-is-parent-directory' into maint-1.7.11 2012-09-12 14:00:34 -07:00
revision.h
run-command.c Merge branch 'jc/maint-sane-execvp-notdir' into maint-1.7.11 2012-09-11 11:09:19 -07:00
run-command.h
send-pack.h
sequencer.c
sequencer.h
server-info.c
setup.c setup.c: document get_pathspec() 2013-01-06 14:26:37 -08:00
sh-i18n--envsubst.c
sha1-array.c
sha1-array.h
sha1-lookup.c
sha1-lookup.h
sha1_file.c Merge branch 'hv/link-alt-odb-entry' into maint 2012-08-15 13:36:47 -07:00
sha1_name.c Merge branch 'mm/verify-filename-fix' into maint 2012-07-11 12:45:49 -07:00
shallow.c
shell.c
shortlog.h
show-index.c
sideband.c
sideband.h
sigchain.c
sigchain.h
strbuf.c
strbuf.h
streaming.c
streaming.h
string-list.c
string-list.h
submodule.c Merge branch 'tr/void-diff-setup-done' into maint-1.7.11 2012-09-11 10:53:40 -07:00
submodule.h
symlinks.c
tag.c
tag.h
tar.h
test-chmtime.c
test-credential.c
test-ctype.c
test-date.c
test-delta.c
test-dump-cache-tree.c
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
test-regex.c test-regex: Add a test to check for a bug in the regex routines 2012-09-02 18:57:21 -07:00
test-revision-walking.c
test-run-command.c
test-scrap-cache-tree.c
test-sha1.c
test-sha1.sh
test-sigchain.c
test-subprocess.c
test-svn-fe.c
thread-utils.c
thread-utils.h
trace.c
transport-helper.c
transport.c
transport.h
tree-diff.c Merge branch 'tr/void-diff-setup-done' into maint-1.7.11 2012-09-11 10:53:40 -07:00
tree-walk.c
tree-walk.h
tree.c
tree.h
unimplemented.sh
unix-socket.c
unix-socket.h
unpack-trees.c dir.c: use a single struct exclude_list per source of excludes 2013-01-06 14:25:06 -08:00
unpack-trees.h unpack-trees.c: use path_excluded() in check_ok_to_remove() 2012-06-05 22:21:42 -07:00
upload-pack.c
url.c
url.h
usage.c
userdiff.c
userdiff.h
utf8.c
utf8.h
varint.c
varint.h
walker.c
walker.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

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.
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 (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://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.