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Kirill Smelkov 12cd81743d tree-diff: reuse base str(buf) memory on sub-tree recursion
Instead of allocating it all the time for every subtree in
ll_diff_tree_sha1, let's allocate it once in diff_tree_sha1, and then
all callee just use it in stacking style, without memory allocations.

This should be faster, and for me this change gives the following
slight speedups for

    git log --raw --no-abbrev --no-renames --format='%H'

                navy.git    linux.git v3.10..v3.11

    before      0.618s      1.903s
    after       0.611s      1.889s
    speedup     1.1%        0.7%

Signed-off-by: Kirill Smelkov <kirr@mns.spb.ru>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-03-27 11:52:35 -07:00
block-sha1
builtin Merge branch 'sb/repack-in-c' 2014-01-27 10:45:49 -08:00
compat Merge branch 'ef/mingw-write' 2014-01-27 10:44:59 -08:00
contrib Merge branch 'jk/complete-merge-base' 2014-01-27 10:43:55 -08:00
Documentation Git 1.9-rc1 2014-01-27 11:01:35 -08:00
git-gui git-gui 0.19.0 2014-01-21 13:16:17 -08:00
gitk-git Merge git://ozlabs.org/~paulus/gitk 2014-01-23 08:50:50 -08:00
gitweb
mergetools
perl git-svn: memoize _rev_list and rebuild 2014-01-23 02:54:26 +00:00
po l10n: Bulgarian translation of git (222t21f1967u) 2014-01-29 14:29:15 +02:00
ppc
t tests: add checking that combine-diff emits only correct paths 2014-02-24 14:44:57 -08:00
templates
vcs-svn
xdiff
.gitattributes
.gitignore
.mailmap
abspath.c Merge branch 'ap/path-max' 2014-01-10 10:32:18 -08:00
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.h
attr.c
attr.h
base85.c
bisect.c
bisect.h
blob.c
blob.h
branch.c
branch.h
builtin.h
bulk-checkin.c
bulk-checkin.h
bundle.c
bundle.h
cache-tree.c
cache-tree.h
cache.h Merge branch 'mh/safe-create-leading-directories' 2014-01-27 10:45:33 -08:00
check-builtins.sh
check-racy.c
check_bindir
color.c
color.h
column.c
column.h
combine-diff.c combine-diff: move changed-paths scanning logic into its own function 2014-02-24 14:46:11 -08:00
command-list.txt
commit-slab.h
commit.c Merge branch 'vm/octopus-merge-bases-simplify' 2014-01-10 10:33:45 -08:00
commit.h Merge branch 'nd/shallow-clone' 2014-01-17 12:21:20 -08:00
config.c
config.mak.in
config.mak.uname
configure.ac
connect.c Merge branch 'nd/shallow-clone' 2014-01-17 12:21:20 -08:00
connect.h
connected.c Merge branch 'nd/shallow-clone' 2014-01-17 12:21:20 -08:00
connected.h
convert.c
convert.h
copy.c
COPYING
credential-cache--daemon.c
credential-cache.c
credential-store.c
credential.c
credential.h
csum-file.c Merge branch 'jk/sha1write-void' 2014-01-10 10:33:09 -08:00
csum-file.h Merge branch 'jk/sha1write-void' 2014-01-10 10:33:09 -08:00
ctype.c
daemon.c Merge branch 'nd/daemon-informative-errors-typofix' 2014-01-10 10:32:59 -08:00
date.c
decorate.c
decorate.h
delta.h
diff-delta.c
diff-lib.c combine-diff: combine_diff_path.len is not needed anymore 2014-02-24 14:44:57 -08:00
diff-no-index.c
diff.c Merge branch 'jk/diff-filespec-cleanup' 2014-01-27 10:45:03 -08:00
diff.h tree-diff: diff_tree() should now be static 2014-03-26 14:30:47 -07:00
diffcore-break.c
diffcore-delta.c
diffcore-order.c diffcore-order: export generic ordering interface 2014-02-24 14:44:57 -08:00
diffcore-pickaxe.c
diffcore-rename.c
diffcore.h diffcore-order: export generic ordering interface 2014-02-24 14:44:57 -08:00
dir.c Merge branch 'mh/safe-create-leading-directories' 2014-01-27 10:45:33 -08:00
dir.h
editor.c
entry.c
environment.c Merge branch 'nd/shallow-clone' 2014-01-17 12:21:20 -08:00
exec_cmd.c
exec_cmd.h
fast-import.c
fetch-pack.c Merge branch 'jk/allow-fetch-onelevel-refname' 2014-01-27 10:44:14 -08:00
fetch-pack.h Merge branch 'nd/shallow-clone' 2014-01-17 12:21:20 -08:00
fmt-merge-msg.h
fsck.c
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 Merge branch 'bs/mirbsd' 2014-01-10 10:33:14 -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 git p4: fix an error message when "p4 where" fails 2014-01-22 08:06:19 -08:00
git-parse-remote.sh
git-pull.sh Merge branch 'jk/pull-rebase-using-fork-point' 2014-01-17 12:04:29 -08:00
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 'rk/send-email-ssl-cert' 2014-01-27 10:44:34 -08:00
git-sh-i18n.sh
git-sh-setup.sh Merge branch 'jn/pager-lv-default-env' 2014-01-13 11:33:35 -08:00
git-stash.sh
git-submodule.sh Merge branch 'fp/submodule-checkout-mode' 2014-01-17 12:21:20 -08:00
git-svn.perl
GIT-VERSION-GEN Git 1.9-rc2 2014-01-31 14:16:06 -08:00
git-web--browse.sh
git.c Merge branch 'nd/shallow-clone' 2014-01-17 12:21:20 -08:00
git.rc Makefile: Fix compilation of Windows resource file 2014-01-23 10:00:28 -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
http.h
ident.c
imap-send.c
INSTALL
kwset.c
kwset.h
levenshtein.c
levenshtein.h
LGPL-2.1
line-log.c line-log: convert to using diff_tree_sha1() 2014-02-05 10:50:36 -08:00
line-log.h
line-range.c
line-range.h
list-objects.c Merge branch 'jk/mark-edges-uninteresting' 2014-01-27 10:45:08 -08:00
list-objects.h
ll-merge.c
ll-merge.h
lockfile.c
log-tree.c Merge branch 'bc/log-decoration' 2014-01-10 10:32:39 -08:00
log-tree.h
mailmap.c
mailmap.h
Makefile Merge branch 'jk/revision-o-is-in-libgit-a' 2014-01-27 10:45:52 -08:00
match-trees.c
merge-blobs.c
merge-blobs.h
merge-recursive.c Merge branch 'mh/safe-create-leading-directories' 2014-01-27 10:45:33 -08:00
merge-recursive.h
merge.c
mergesort.c
mergesort.h
name-hash.c
notes-cache.c
notes-cache.h
notes-merge.c
notes-merge.h
notes-utils.c
notes-utils.h
notes.c
notes.h
object.c
object.h
pack-check.c
pack-revindex.c
pack-revindex.h
pack-write.c Merge branch 'jk/sha1write-void' 2014-01-10 10:33:09 -08:00
pack.h
pager.c Merge branch 'jn/pager-lv-default-env' 2014-01-13 11:33:35 -08:00
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.h
quote.c
quote.h
reachable.c
reachable.h
read-cache.c
README
reflog-walk.c
reflog-walk.h
refs.c Merge branch 'mh/safe-create-leading-directories' 2014-01-27 10:45:33 -08:00
refs.h
RelNotes Git 1.8.5.3 2014-01-13 11:28:26 -08:00
remote-curl.c Merge branch 'nd/shallow-clone' 2014-01-17 12:21:20 -08:00
remote-testsvn.c
remote.c Merge branch 'mh/retire-ref-fetch-rules' 2014-01-27 10:44:07 -08:00
remote.h Merge branch 'nd/shallow-clone' 2014-01-17 12:21:20 -08:00
replace_object.c
rerere.c
rerere.h
resolve-undo.c
resolve-undo.h
revision.c revision: convert to using diff_tree_sha1() 2014-02-05 10:51:16 -08:00
revision.h
run-command.c
run-command.h
send-pack.c Merge branch 'nd/shallow-clone' 2014-01-17 12:21:20 -08:00
send-pack.h
sequencer.c
sequencer.h
server-info.c
setup.c
sh-i18n--envsubst.c
sha1-array.c
sha1-array.h
sha1-lookup.c
sha1-lookup.h
sha1_file.c Merge branch 'ss/safe-create-leading-dir-with-slash' 2014-01-27 10:45:37 -08:00
sha1_name.c Merge branch 'jk/interpret-branch-name-fix' 2014-01-27 10:44:21 -08:00
shallow.c Merge branch 'nd/shallow-clone' 2014-01-17 12:21:20 -08:00
shell.c
shortlog.h
show-index.c
sideband.c
sideband.h
sigchain.c
sigchain.h
strbuf.c
strbuf.h
streaming.c Merge branch 'ef/mingw-write' 2014-01-27 10:44:59 -08:00
streaming.h
string-list.c
string-list.h
submodule.c
submodule.h
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-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.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
transport-helper.c Merge branch 'ef/mingw-write' 2014-01-27 10:44:59 -08:00
transport.c Merge branch 'nd/shallow-clone' 2014-01-17 12:21:20 -08:00
transport.h
tree-diff.c tree-diff: reuse base str(buf) memory on sub-tree recursion 2014-03-27 11:52:35 -07:00
tree-walk.c tree-walk: finally switch over tree descriptors to contain a pre-parsed entry 2014-02-24 14:43:29 -08:00
tree-walk.h tree-walk: finally switch over tree descriptors to contain a pre-parsed entry 2014-02-24 14:43:29 -08:00
tree.c
tree.h
unimplemented.sh
unix-socket.c
unix-socket.h
unpack-trees.c
unpack-trees.h
upload-pack.c Merge branch 'nd/shallow-clone' 2014-01-17 12:21:20 -08:00
url.c
url.h
urlmatch.c
urlmatch.h
usage.c
userdiff.c
userdiff.h
utf8.c
utf8.h
varint.c
varint.h
version.c
version.h
walker.c
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,
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.