git-commit-vandalism/builtin
Martin von Zweigbergk b7099a06e8 reset --keep: only write index file once
"git reset --keep" calls reset_index_file() twice, first doing a
two-way merge to the target revision, updating the index and worktree,
and then resetting the index. After each call, we write the index
file.

In the unlikely event that the second call to reset_index_file()
fails, the index will have been merged to the target revision, but
HEAD will not be updated, leaving the user with a dirty index.

By moving the locking, writing and committing out of
reset_index_file() and into the caller, we can avoid writing the index
twice, thereby making the sure we don't end up in the half-way reset
state. As a bonus, we speed up "git reset --keep" a little on the
linux-2.6 repo (best of five, warm cache):

        Before      After
real    0m0.315s    0m0.296s
user    0m0.290s    0m0.280s
sys     0m0.020s    0m0.010s

Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-15 09:38:07 -08:00
..
add.c Merge branch 'rj/path-cleanup' 2012-09-14 11:53:53 -07:00
annotate.c Move 'builtin-*' into a 'builtin/' subdirectory 2010-02-22 14:29:41 -08:00
apply.c Merge branch 'jc/apply-trailing-blank-removal' 2013-01-06 22:10:23 -08:00
archive.c Reduce translations by using same terminologies 2012-08-22 12:02:28 -07:00
bisect--helper.c i18n: bisect--helper: mark parseopt strings for translation 2012-08-20 12:23:15 -07:00
blame.c pretty: remove reencode_commit_message() 2012-10-17 22:42:40 -07:00
branch.c Merge branch 'nd/maint-branch-desc-doc' 2013-01-09 08:27:09 -08:00
bundle.c
cat-file.c Merge branch 'maint-1.7.11' into maint 2012-09-10 15:31:06 -07:00
check-attr.c Merge branch 'maint' 2012-09-17 15:59:34 -07:00
check-ref-format.c
checkout-index.c Use imperative form in help usage to describe an action 2012-08-22 12:02:28 -07:00
checkout.c checkout: print a message when switching unborn branches 2012-11-15 17:36:26 -08:00
clean.c i18n: clean: mark parseopt strings for translation 2012-08-20 12:23:16 -07:00
clone.c Merge branch 'rt/maint-clone-single' into maint 2012-10-08 11:34:02 -07:00
column.c i18n: column: mark parseopt strings for translation 2012-08-20 12:23:16 -07:00
commit-tree.c Merge branch 'kk/maint-commit-tree' 2012-07-23 20:55:54 -07:00
commit.c ident: keep separate "explicit" flags for author and committer 2012-11-15 17:47:24 -08:00
config.c Merge branch 'cn/config-missing-path' into maint 2012-11-25 18:35:46 -08:00
count-objects.c i18n: count-objects: mark parseopt strings for translation 2012-08-20 12:23:16 -07:00
credential.c
describe.c Merge branch 'jk/peel-ref' 2012-10-25 06:42:27 -04:00
diff-files.c
diff-index.c update-index/diff-index: use core.preloadindex to improve performance 2012-11-02 11:38:29 -04:00
diff-tree.c
diff.c Merge branch 'kb/preload-index-more' 2012-11-20 10:32:10 -08:00
fast-export.c fast-export: make sure updated refs get updated 2012-12-03 09:57:16 -08:00
fetch-pack.c fetch-pack: move core code to libgit.a 2012-10-29 03:40:29 -04:00
fetch.c Merge branch 'dj/fetch-all-tags' into maint 2012-09-24 12:39:21 -07:00
fmt-merge-msg.c i18n: fmt-merge-msg: mark parseopt strings for translation 2012-08-20 12:23:17 -07:00
for-each-ref.c Merge branch 'nd/i18n-parseopt-help' 2012-09-07 11:09:09 -07:00
fsck.c i18n: fsck: mark parseopt strings for translation 2012-08-20 12:23:17 -07:00
gc.c silence git gc --auto --quiet output 2012-09-27 17:57:26 -07:00
grep.c Merge branch 'nd/grep-true-path' into maint 2012-11-18 19:32:30 -08:00
hash-object.c i18n: hash-object: mark parseopt strings for translation 2012-08-20 12:23:17 -07:00
help.c i18n: help: mark parseopt strings for translation 2012-08-20 12:23:17 -07:00
index-pack.c i18n: mark more index-pack strings for translation 2012-08-31 13:05:05 -07:00
init-db.c i18n: init-db: mark parseopt strings for translation 2012-08-20 12:23:17 -07:00
log.c Merge branch 'nd/maint-branch-desc-doc' 2013-01-09 08:27:09 -08:00
ls-files.c pathspec: save the non-wildcard length part 2012-11-19 13:08:28 -08:00
ls-remote.c ls-remote: document the '--get-url' option 2012-09-07 10:58:35 -07:00
ls-tree.c pathspec: save the non-wildcard length part 2012-11-19 13:08:28 -08:00
mailinfo.c Merge branch 'jc/same-encoding' 2012-11-15 10:24:05 -08:00
mailsplit.c
merge-base.c Merge branch 'jc/merge-bases' 2012-09-11 11:36:05 -07:00
merge-file.c i18n: merge-file: mark parseopt strings for translation 2012-08-20 12:23:18 -07:00
merge-index.c
merge-ours.c
merge-recursive.c
merge-tree.c
merge.c Merge branch 'ap/merge-stop-at-prepare-commit-msg-failure' 2013-01-09 08:26:33 -08:00
mktag.c
mktree.c i18n: mktree: mark parseopt strings for translation 2012-08-20 12:23:18 -07:00
mv.c i18n: mv: mark parseopt strings for translation 2012-08-20 12:23:18 -07:00
name-rev.c i18n: name-rev: mark parseopt strings for translation 2012-08-20 12:23:18 -07:00
notes.c builtin/notes.c: mark file-scope private symbols as static 2012-09-15 22:58:20 -07:00
pack-objects.c Merge branch 'jk/peel-ref' 2012-10-25 06:42:27 -04:00
pack-redundant.c Fix sizeof usage in get_permutations 2012-12-13 11:13:44 -08:00
pack-refs.c i18n: pack-refs: mark parseopt strings for translation 2012-08-20 12:23:19 -07:00
patch-id.c
prune-packed.c i18n: prune-packed: mark parseopt strings for translation 2012-08-20 12:23:19 -07:00
prune.c Merge branch 'rj/path-cleanup' 2012-09-14 11:53:53 -07:00
push.c push: allow already-exists advice to be disabled 2012-12-03 08:04:09 -08:00
read-tree.c i18n: read-tree: mark parseopt strings for translation 2012-08-20 12:23:19 -07:00
receive-pack.c Merge branch 'jk/receive-pack-unpack-error-to-pusher' 2012-10-01 12:58:34 -07:00
reflog.c
remote-ext.c
remote-fd.c
remote.c Fix typo in remote set-head usage 2012-11-26 13:27:45 -08:00
replace.c replace: parse revision argument for -d 2012-11-13 08:34:14 -05:00
rerere.c i18n: rerere: mark parseopt strings for translation 2012-08-20 12:23:19 -07:00
reset.c reset --keep: only write index file once 2013-01-15 09:38:07 -08:00
rev-list.c Move print_commit_list to libgit.a 2012-10-29 03:08:30 -04:00
rev-parse.c Merge branch 'maint-1.7.11' into maint 2012-09-12 14:08:05 -07:00
revert.c Merge branch 'mz/cherry-pick-cmdline-order' 2012-09-10 15:42:55 -07:00
rm.c Merge branch 'jl/submodule-rm' 2012-11-29 12:52:30 -08:00
send-pack.c push: require force for refs under refs/tags/ 2012-12-02 01:44:34 -08:00
shortlog.c Merge branch 'sp/shortlog-missing-lf' 2013-01-02 10:40:34 -08:00
show-branch.c i18n: show-branch: mark parseopt strings for translation 2012-08-22 10:58:28 -07:00
show-ref.c Merge branch 'jk/peel-ref' 2012-10-25 06:42:27 -04:00
stripspace.c
symbolic-ref.c git symbolic-ref --delete $symref 2012-10-21 12:17:38 -07:00
tag.c Reduce translations by using same terminologies 2012-08-22 12:02:28 -07:00
tar-tree.c
unpack-file.c
unpack-objects.c
update-index.c Merge branch 'kb/preload-index-more' 2012-11-20 10:32:10 -08:00
update-ref.c Use imperative form in help usage to describe an action 2012-08-22 12:02:28 -07:00
update-server-info.c i18n: update-server-info: mark parseopt strings for translation 2012-08-22 10:58:29 -07:00
upload-archive.c
var.c
verify-pack.c i18n: verify-pack: mark parseopt strings for translation 2012-08-22 10:58:29 -07:00
verify-tag.c i18n: verify-tag: mark parseopt strings for translation 2012-08-22 10:58:29 -07:00
write-tree.c i18n: write-tree: mark parseopt strings for translation 2012-08-22 10:58:29 -07:00