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Jeff King be5c9fb904 logmsg_reencode: lazily load missing commit buffers
Usually a commit that makes it to logmsg_reencode will have
been parsed, and the commit->buffer struct member will be
valid. However, some code paths will free commit buffers
after having used them (for example, the log traversal
machinery will do so to keep memory usage down).

Most of the time this is fine; log should only show a commit
once, and then exits. However, there are some code paths
where this does not work. At least two are known:

  1. A commit may be shown as part of a regular ref, and
     then it may be shown again as part of a submodule diff
     (e.g., if a repo contains refs to both the superproject
     and subproject).

  2. A notes-cache commit may be shown during "log --all",
     and then later used to access a textconv cache during a
     diff.

Lazily loading in logmsg_reencode does not necessarily catch
all such cases, but it should catch most of them. Users of
the commit buffer tend to be either parsing for structure
(in which they will call parse_commit, and either we will
already have parsed, or we will load commit->buffer lazily
there), or outputting (either to the user, or fetching a
part of the commit message via format_commit_message). In
the latter case, we should always be using logmsg_reencode
anyway (and typically we do so via the pretty-print
machinery).

If there are any cases that this misses, we can fix them up
to use logmsg_reencode (or handle them on a case-by-case
basis if that is inappropriate).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-26 13:28:22 -08:00
Documentation Update draft release notes to 1.8.2 2013-01-25 12:52:55 -08:00
block-sha1
builtin logmsg_reencode: lazily load missing commit buffers 2013-01-26 13:28:22 -08:00
compat Merge branch 'nd/wildmatch' 2013-01-10 13:47:20 -08:00
contrib Merge branch 'ch/add-auto-submitted-in-sample-post-receive-email' 2013-01-23 21:19:19 -08:00
git-gui
git_remote_helpers Merge branch 'er/python-version-requirements' 2013-01-09 08:25:48 -08:00
gitk-git Merge git://ozlabs.org/~paulus/gitk 2013-01-23 08:35:03 -08:00
gitweb Merge branch 'os/gitweb-highlight-uncaptured' into maint 2013-01-11 16:48:30 -08:00
mergetools
perl git-svn: cleanup sprintf usage for uppercasing hex 2013-01-24 10:21:23 +00:00
po l10n: de.po: address the user formally 2013-01-07 18:33:35 +01:00
ppc
t logmsg_reencode: lazily load missing commit buffers 2013-01-26 13:28:22 -08:00
templates Add sample pre-push hook script 2013-01-18 11:13:22 -08:00
vcs-svn
xdiff
.gitattributes
.gitignore Merge branch 'as/check-ignore' 2013-01-23 21:19:10 -08:00
.mailmap
COPYING
GIT-VERSION-GEN Git 1.8.1.1 2013-01-14 08:04:50 -08:00
INSTALL
LGPL-2.1
Makefile Merge branch 'nd/retire-fnmatch' 2013-01-25 12:34:55 -08:00
README
RelNotes Start preparing for 1.8.1.2 2013-01-20 17:26:04 -08:00
abspath.c
aclocal.m4
advice.c
advice.h
alias.c
alloc.c
archive-tar.c Merge branch 'rs/leave-base-name-in-name-field-of-tar' into maint 2013-01-14 07:34:12 -08:00
archive-zip.c Merge branch 'rs/zip-with-uncompressed-size-in-the-header' into maint 2013-01-20 17:22:27 -08:00
archive.c
archive.h
argv-array.c
argv-array.h
attr.c Merge branch 'nd/fix-directory-attrs-off-by-one' 2013-01-22 09:34:29 -08:00
attr.h
base85.c
bisect.c
bisect.h
blob.c
blob.h
branch.c
branch.h
builtin.h Merge branch 'as/check-ignore' 2013-01-23 21:19:10 -08:00
bulk-checkin.c
bulk-checkin.h
bundle.c
bundle.h
cache-tree.c
cache-tree.h
cache.h Merge branch 'jk/suppress-clang-warning' 2013-01-23 21:19:00 -08:00
check-builtins.sh
check-racy.c
check_bindir
color.c
color.h
column.c
column.h
combine-diff.c
command-list.txt Merge branch 'as/check-ignore' 2013-01-23 21:19:10 -08:00
commit.c
commit.h logmsg_reencode: never return NULL 2013-01-26 13:28:21 -08:00
config.c Merge branch 'jn/warn-on-inaccessible-loosen' into maint 2013-01-11 16:47:07 -08:00
config.mak.in
config.mak.uname
configure.ac Merge branch 'mh/pthreads-autoconf' into maint 2013-01-10 14:04:26 -08:00
connect.c
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
diff.c Merge branch 'jc/blame-no-follow' 2013-01-14 08:15:51 -08:00
diff.h
diffcore-break.c
diffcore-delta.c
diffcore-order.c
diffcore-pickaxe.c
diffcore-rename.c
diffcore.h
dir.c Merge branch 'nd/retire-fnmatch' 2013-01-25 12:34:55 -08:00
dir.h Merge branch 'as/check-ignore' 2013-01-23 21:19:10 -08:00
editor.c run-command: encode signal death as a positive integer 2013-01-06 11:09:18 -08:00
entry.c
environment.c
exec_cmd.c
exec_cmd.h
fast-import.c
fetch-pack.c
fetch-pack.h
fixup-builtins
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 'nd/retire-fnmatch' 2013-01-25 12:34:55 -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-lost-found.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 'pw/p4-branch-fixes' 2013-01-21 20:15:44 -08:00
git-parse-remote.sh
git-pull.sh
git-quiltimport.sh
git-rebase--am.sh
git-rebase--interactive.sh Merge branch 'ph/rebase-preserve-all-merges' 2013-01-21 20:15:15 -08:00
git-rebase--merge.sh
git-rebase.sh
git-relink.perl
git-remote-testgit
git-remote-testpy.py Merge branch 'fc/remote-testgit-feature-done' 2013-01-14 08:15:46 -08:00
git-repack.sh
git-request-pull.sh
git-send-email.perl Merge branch 'nz/send-email-headers-are-case-insensitive' into maint 2013-01-20 17:22:49 -08:00
git-sh-i18n.sh
git-sh-setup.sh Merge branch 'jc/maint-fbsd-sh-ifs-workaround' into maint 2013-01-08 11:17:01 -08:00
git-stash.sh
git-submodule.sh
git-svn.perl git-svn: Simplify calculation of GIT_DIR 2013-01-24 10:21:23 +00:00
git-web--browse.sh
git.c Merge branch 'as/check-ignore' 2013-01-23 21:19:10 -08:00
git.spec.in
gpg-interface.c
gpg-interface.h
graph.c Merge branch 'mk/maint-graph-infinity-loop' into maint 2013-01-14 07:32:18 -08:00
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 'rb/http-cert-cred-no-username-prompt' into maint 2013-01-10 14:03:54 -08:00
http.h
ident.c
imap-send.c imap-send.c: simplify logic in lf_to_crlf() 2013-01-15 14:50:23 -08:00
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 Merge branch 'ap/log-mailmap' 2013-01-20 17:06:53 -08:00
log-tree.h
mailmap.c Merge branch 'ap/log-mailmap' 2013-01-20 17:06:53 -08:00
mailmap.h mailmap: simplify map_user() interface 2013-01-10 12:33:08 -08:00
match-trees.c
merge-blobs.c
merge-blobs.h
merge-recursive.c
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.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 fix clang -Wunused-value warnings for error functions 2013-01-16 12:47:46 -08:00
patch-delta.c
patch-ids.c
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 logmsg_reencode: lazily load missing commit buffers 2013-01-26 13:28:22 -08:00
progress.c
progress.h
prompt.c
prompt.h
quote.c
quote.h
reachable.c
reachable.h
read-cache.c
reflog-walk.c
reflog-walk.h
refs.c Merge branch 'rs/clarify-entry-cmp-sslice' 2013-01-23 21:19:06 -08:00
refs.h
remote-curl.c
remote-testsvn.c
remote.c Merge branch 'cr/push-force-tag-update' 2013-01-23 21:16:49 -08:00
remote.h
replace_object.c
rerere.c
rerere.h
resolve-undo.c
resolve-undo.h
revision.c log --use-mailmap: optimize for cases without --author/--committer search 2013-01-10 12:33:09 -08:00
revision.h Merge branch 'ap/log-mailmap' 2013-01-20 17:06:53 -08:00
run-command.c hooks: Add function to check if a hook exists 2013-01-14 09:25:40 -08:00
run-command.h hooks: Add function to check if a hook exists 2013-01-14 09:25:40 -08:00
send-pack.c
send-pack.h
sequencer.c
sequencer.h
server-info.c
setup.c Merge branch 'as/check-ignore' 2013-01-23 21:19:10 -08:00
sh-i18n--envsubst.c
sha1-array.c
sha1-array.h
sha1-lookup.c
sha1-lookup.h
sha1_file.c
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 Merge branch 'ap/log-mailmap' 2013-01-20 17:06:53 -08:00
string-list.h Merge branch 'ap/log-mailmap' 2013-01-20 17:06:53 -08:00
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-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-wildmatch.c
thread-utils.c
thread-utils.h
trace.c
transport-helper.c
transport.c push: Add support for pre-push hooks 2013-01-18 11:13:22 -08:00
transport.h push: Add support for pre-push hooks 2013-01-18 11:13:22 -08:00
tree-diff.c
tree-walk.c
tree-walk.h
tree.c
tree.h
unimplemented.sh
unix-socket.c
unix-socket.h
unpack-trees.c Merge branch 'as/check-ignore' 2013-01-23 21:19:10 -08:00
unpack-trees.h
upload-pack.c Merge branch 'nd/upload-pack-shallow-must-be-commit' 2013-01-14 08:15:44 -08:00
url.c
url.h
usage.c
userdiff.c
userdiff.h
utf8.c Merge branch 'sp/shortlog-missing-lf' into maint 2013-01-10 14:04:23 -08:00
utf8.h Merge branch 'sp/shortlog-missing-lf' into maint 2013-01-10 14:04:23 -08:00
varint.c
varint.h
version.c
version.h
walker.c
walker.h
wildmatch.c
wildmatch.h
wrap-for-bin.sh
wrapper.c Merge branch 'jn/warn-on-inaccessible-loosen' into maint 2013-01-11 16:47:07 -08:00
write_or_die.c
ws.c
wt-status.c Merge branch 'ap/status-ignored-in-ignored-directory' 2013-01-14 08:15:43 -08:00
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 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://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.