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Jeff King b1c2f57db3 diff_grep: use textconv buffers for add/deleted files
If you use "-G" to grep a diff, we will apply a configured
textconv filter to the data before generating the diff.
However, if the diff is an addition or deletion, we do not
bother running the diff at all, and just look for the token
in the added (or removed) content. This works because we
know that the diff must contain every line of content.

However, while we used the textconv-derived buffers in the
regular diff, we accidentally passed the original unmodified
buffers to regexec when checking the added or removed
content. This could lead to an incorrect answer.

Worse, in some cases we might have a textconv buffer but no
original buffer (e.g., if we pulled the textconv data from
cache, or if we reused a working tree file when generating
it). In that case, we could actually feed NULL to regexec
and segfault.

Reported-by: Peter Oberndorfer <kumbayo84@arcor.de>
Signed-off-by: Jeff King <peff@peff.net>
2012-10-28 07:59:44 -04:00
Documentation Git 1.7.12.4 2012-10-17 10:36:42 -07:00
block-sha1
builtin Merge branch 'os/commit-submodule-ignore' into maint 2012-10-08 11:34:34 -07:00
compat Merge branch 'rr/precompose-utf8-cleanup' into maint 2012-09-11 11:07:14 -07:00
contrib Fix spelling error in post-receive-email hook 2012-10-13 21:50:14 -07:00
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 gitweb.cgi: fix "comitter_tz" typo in feed 2012-10-12 08:43:12 -07:00
mergetools
perl
po l10n: de.po: fix a few minor typos 2012-10-04 19:13:43 +02:00
ppc
t diff_grep: use textconv buffers for add/deleted files 2012-10-28 07:59:44 -04:00
templates
vcs-svn
xdiff
.gitattributes
.gitignore Sync with 1.7.11.7 2012-09-14 21:20:40 -07:00
.mailmap
COPYING
GIT-VERSION-GEN Git 1.7.12.4 2012-10-17 10:36:42 -07:00
INSTALL
LGPL-2.1
Makefile Sync with 1.7.11.7 2012-09-14 21:20:40 -07:00
README
RelNotes Git 1.7.12.4 2012-10-17 10:36:42 -07:00
abspath.c
aclocal.m4
advice.c
advice.h
alias.c
alloc.c
archive-tar.c
archive-zip.c
archive.c
archive.h
argv-array.c argv-array: fix bogus cast when freeing array 2012-09-02 21:10:24 -07:00
argv-array.h argv-array: add pop function 2012-09-02 21:10:01 -07:00
attr.c Merge branch 'jc/ll-merge-binary-ours' into maint 2012-10-17 10:26:51 -07:00
attr.h
base85.c
bisect.c
bisect.h
blob.c
blob.h
branch.c
branch.h
builtin.h Merge branch 'maint-1.7.11' into maint 2012-09-10 15:31:06 -07:00
bulk-checkin.c
bulk-checkin.h
bundle.c
bundle.h
cache-tree.c
cache-tree.h
cache.h Sync with 1.7.11.6 2012-09-11 11:23:54 -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
commit.c
commit.h
config.c config: warn on inaccessible files 2012-08-21 14:46:11 -07:00
config.mak.in
configure.ac
connect.c Merge branch 'jc/capabilities' into maint 2012-09-11 11:06:45 -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
decorate.c
decorate.h
delta.h
diff-delta.c
diff-lib.c
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 'nd/maint-diffstat-summary' into maint 2012-09-20 15:55:31 -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 diff_grep: use textconv buffers for add/deleted files 2012-10-28 07:59:44 -04:00
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 warn_on_inaccessible(): a helper to warn on inaccessible paths 2012-08-21 14:52:07 -07:00
dir.h
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-am.sh
git-archimport.perl
git-bisect.sh
git-compat-util.h warn_on_inaccessible(): a helper to warn on inaccessible paths 2012-08-21 14:52:07 -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-lost-found.sh
git-merge-octopus.sh
git-merge-one-file.sh
git-merge-resolve.sh
git-mergetool--lib.sh
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 'maint-1.7.11' into maint 2012-09-10 15:31:06 -07:00
git-rebase--merge.sh
git-rebase.sh
git-relink.perl
git-remote-testgit.py
git-repack.sh
git-request-pull.sh
git-send-email.perl Merge branch 'sb/send-email-reconfirm-fix' into maint 2012-09-14 21:32:07 -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 'rr/maint-submodule-unknown-cmd' into maint 2012-10-02 13:42:32 -07:00
git-svn.perl
git-web--browse.sh
git.c
git.spec.in
gpg-interface.c
gpg-interface.h
graph.c
graph.h
grep.c grep.c: make two symbols really file-scope static this time 2012-09-20 14:20:09 -07:00
grep.h grep.c: mark private file-scope symbols as static 2012-09-15 23:35:39 -07:00
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 2012-10-17 10:29:24 -07:00
http.h http: fix segfault in handle_curl_result 2012-10-12 09:42:31 -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 Merge branch 'jc/ll-merge-binary-ours' into maint 2012-10-17 10:26:51 -07:00
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 Sync with 1.7.11.6 2012-09-11 11:23:54 -07:00
merge-recursive.h
mergesort.c
mergesort.h
name-hash.c
notes-cache.c
notes-cache.h
notes-merge.c Sync with 1.7.11.6 2012-09-11 11:23:54 -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
patch-ids.h
path.c
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 Sync with 1.7.11.6 2012-09-11 11:23:54 -07:00
reflog-walk.c
reflog-walk.h
refs.c
refs.h
remote-curl.c Merge branch 'jk/maint-http-half-auth-push' into maint 2012-10-17 10:29:24 -07:00
remote.c
remote.h
replace_object.c
rerere.c
rerere.h
resolve-undo.c
resolve-undo.h
revision.c Merge branch 'jc/maint-log-grep-all-match-1' into maint 2012-09-29 22:30:56 -07:00
revision.h Merge branch 'mz/cherry-pick-cmdline-order' into maint 2012-09-14 21:24:18 -07:00
run-command.c Merge branch 'dg/run-command-child-cleanup' into maint 2012-09-20 15:55:12 -07:00
run-command.h
send-pack.h
sequencer.c cherry-pick/revert: respect order of revisions to pick 2012-08-30 14:00:23 -07:00
sequencer.h
server-info.c
setup.c Merge branch 'maint-1.7.11' into maint 2012-09-10 15:31:06 -07:00
sh-i18n--envsubst.c
sha1-array.c
sha1-array.h
sha1-lookup.c
sha1-lookup.h
sha1_file.c sha1_file.c: introduce get_max_fd_limit() helper 2012-08-24 09:46:01 -07:00
sha1_name.c
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 'dj/fetch-all-tags' into maint 2012-09-24 12:39:21 -07:00
submodule.h submodule: use argv_array instead of hand-building arrays 2012-09-02 21:13:50 -07:00
symlinks.c
tag.c
tag.h
tar.h
test-chmtime.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
unpack-trees.h
upload-pack.c
url.c
url.h
usage.c
userdiff.c
userdiff.h
utf8.c
utf8.h
varint.c
varint.h
version.c
version.h
walker.c
walker.h
wrap-for-bin.sh
wrapper.c warn_on_inaccessible(): a helper to warn on inaccessible paths 2012-08-21 14:52:07 -07:00
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.