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Jeff King c5326bd62b checkout $tree: do not throw away unchanged index entries 
When we "git checkout $tree", we pull paths from $tree into
the index, and then check the resulting entries out to the
worktree. Our method for the first step is rather
heavy-handed, though; it clobbers the entire existing index
entry, even if the content is the same. This means we lose
our stat information, leading checkout_entry to later
rewrite the entire file with identical content.

Instead, let's see if we have the identical entry already in
the index, in which case we leave it in place. That lets
checkout_entry do the right thing. Our tests cover two
interesting cases:

  1. We make sure that a file which has no changes is not
     rewritten.

  2. We make sure that we do update a file that is unchanged
     in the index (versus $tree), but has working tree
     changes. We keep the old index entry, and
     checkout_entry is able to realize that our stat
     information is out of date.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-11-13 14:35:41 -08:00
..
add.c add: don't complain when adding empty project root 2013-12-26 10:46:26 -08:00
annotate.c annotate: use argv_array 2014-07-16 11:10:11 -07:00
apply.c Replace deprecated OPT_BOOLEAN by OPT_BOOL 2013-08-05 11:32:19 -07:00
archive.c pkt-line: provide a LARGE_PACKET_MAX static buffer 2013-02-20 13:42:22 -08:00
bisect--helper.c Replace deprecated OPT_BOOLEAN by OPT_BOOL 2013-08-05 11:32:19 -07:00
blame.c Remove the line length limit for graft files 2013-12-27 16:46:25 -08:00
branch.c Merge branch 'jx/branch-vv-always-compare-with-upstream' 2013-11-18 12:24:49 -08:00
bundle.c
cat-file.c cat-file: handle --batch format with missing type/size 2013-12-12 11:31:25 -08:00
check-attr.c Merge branch 'sb/parseopt-boolean-removal' 2013-09-04 12:39:03 -07:00
check-ignore.c Merge branch 'dw/check-ignore-sans-index' 2013-09-20 12:37:32 -07:00
check-mailmap.c builtin: add git-check-mailmap command 2013-07-13 10:19:37 -07:00
check-ref-format.c
checkout-index.c Merge branch 'nd/lift-path-max' 2013-10-30 12:10:56 -07:00
checkout.c checkout $tree: do not throw away unchanged index entries 2014-11-13 14:35:41 -08:00
clean.c enums: remove trailing ',' after last item in enum 2014-07-02 12:37:05 -07:00
clone.c Merge branch 'nd/transport-positive-depth-only' into maint 2014-02-05 13:58:52 -08:00
column.c i18n: column: mark parseopt strings for translation 2012-08-20 12:23:16 -07:00
commit-tree.c commit-tree: document -S option consistently 2013-03-25 15:01:22 -07:00
commit.c commit -v: strip diffs and submodule shortlogs from the commit message 2013-12-05 14:39:11 -08:00
config.c Merge branch 'jk/config-int-range-check' 2013-09-12 14:41:00 -07:00
count-objects.c count-objects: add -H option to humanize sizes 2013-04-10 13:27:26 -07:00
credential.c
describe.c describe: trivial style fixes 2013-10-31 13:47:35 -07:00
diff-files.c convert read_cache_preload() to take struct pathspec 2013-07-15 10:56:08 -07:00
diff-index.c convert read_cache_preload() to take struct pathspec 2013-07-15 10:56:08 -07:00
diff-tree.c
diff.c Merge branch 'nd/magic-pathspec' into maint 2013-12-17 11:21:34 -08:00
fast-export.c Merge branch 'fc/fast-export' 2013-09-17 11:42:31 -07:00
fetch-pack.c git fetch-pack: add --diag-url 2013-12-09 14:54:47 -08:00
fetch.c Merge branch 'nd/transport-positive-depth-only' into maint 2014-02-05 13:58:52 -08:00
fmt-merge-msg.c Merge branch 'rt/commentchar-fmt-merge-msg' into maint 2013-04-26 11:10:47 -07:00
for-each-ref.c for-each-ref: remove unused variable 2013-12-30 12:23:51 -08:00
fsck.c Merge branch 'jk/free-tree-buffer' 2013-09-17 11:37:33 -07:00
gc.c gc: notice gc processes run by other users 2014-01-02 16:15:29 -08:00
grep.c Merge branch 'mg/more-textconv' 2013-10-23 13:21:31 -07:00
hash-object.c hash-object: replace stdin parsing OPT_BOOLEAN by OPT_COUNTUP 2013-08-07 08:30:55 -07:00
help.c Merge branch 'ph/builtin-srcs-are-in-subdir-these-days' into maint 2013-07-21 22:51:29 -07:00
index-pack.c Merge branch 'jk/free-tree-buffer' 2013-09-17 11:37:33 -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 'mg/more-textconv' 2013-10-23 13:21:31 -07:00
ls-files.c Merge branch 'jc/ls-files-killed-optim' into maint 2013-10-23 13:33:08 -07:00
ls-remote.c ls-remote: document the '--get-url' option 2012-09-07 10:58:35 -07:00
ls-tree.c Merge branch 'jl/submodule-mv' 2013-09-09 14:36:15 -07:00
mailinfo.c Merge branch 'jc/same-encoding' into maint 2012-12-07 14:10:56 -08:00
mailsplit.c mailsplit: sort maildir filenames more cleverly 2013-03-02 22:52:44 -08:00
merge-base.c Merge branch 'bm/merge-base-octopus-dedup' into maint 2014-02-13 13:38:59 -08:00
merge-file.c Replace deprecated OPT_BOOLEAN by OPT_BOOL 2013-08-05 11:32:19 -07:00
merge-index.c Convert "struct cache_entry *" to "const ..." wherever possible 2013-07-09 09:12:48 -07:00
merge-ours.c
merge-recursive.c
merge-tree.c merge-tree: handle directory/empty conflict correctly 2013-05-06 22:17:00 -07:00
merge.c merge: simplify ff-only option 2013-10-31 11:12:24 -07:00
mktag.c
mktree.c i18n: mktree: mark parseopt strings for translation 2012-08-20 12:23:18 -07:00
mv.c mv: let 'git mv file no-such-dir/' error out on Windows, too 2014-01-10 11:28:12 -08:00
name-rev.c branch, commit, name-rev: ease up boolean conditions 2013-08-07 08:30:30 -07:00
notes.c Replace deprecated OPT_BOOLEAN by OPT_BOOL 2013-08-05 11:32:19 -07:00
pack-objects.c Merge branch 'jc/pack-objects' 2013-10-23 13:21:26 -07:00
pack-redundant.c Fix sizeof usage in get_permutations 2012-12-13 11:13:44 -08:00
pack-refs.c pack-refs: merge code from pack-refs.{c,h} into refs.{c,h} 2013-05-01 15:33:11 -07:00
patch-id.c
prune-packed.c prune-packed: avoid implying "1" is DRY_RUN in prune_packed_objects() 2013-05-28 09:20:54 -07:00
prune.c Merge branch 'nd/prune-packed-dryrun-verbose' 2013-06-06 12:17:52 -07:00
push.c Merge branch 'nd/push-no-thin' 2013-09-11 14:56:59 -07:00
read-tree.c C: have space around && and || operators 2013-10-16 10:26:39 -07:00
receive-pack.c Merge branch 'bk/refs-multi-update' 2013-09-20 12:36:12 -07:00
reflog.c Merge branch 'bk/refs-multi-update' 2013-09-20 12:36:12 -07:00
remote-ext.c
remote-fd.c
remote.c Merge branch 'po/remote-set-head-usage' 2013-10-14 11:07:29 -07:00
repack.c Merge branch 'sb/repack-in-c' into maint 2014-02-13 13:38:09 -08:00
replace.c Merge branch 'cc/replace-with-the-same-type' 2013-09-24 23:35:24 -07:00
rerere.c rerere: convert to use parse_pathspec 2013-07-15 10:56:07 -07:00
reset.c reset: pass real rev name to add--interactive 2013-10-25 14:54:18 -07:00
rev-list.c C: have space around && and || operators 2013-10-16 10:26:39 -07:00
rev-parse.c rev-parse: be more careful with munging arguments 2013-12-09 14:39:16 -08:00
revert.c Merge branch 'hu/cherry-pick-previous-branch' 2013-10-23 13:21:35 -07:00
rm.c rm: re-use parse_pathspec's trailing-slash removal 2013-09-13 12:37:35 -07:00
send-pack.c send-pack: fix parsing of --force-with-lease option 2013-08-02 16:07:45 -07:00
shortlog.c Merge branch 'jk/shortlog-tolerate-broken-commit' into maint 2013-10-28 10:17:31 -07:00
show-branch.c Replace deprecated OPT_BOOLEAN by OPT_BOOL 2013-08-05 11:32:19 -07:00
show-ref.c Replace deprecated OPT_BOOLEAN by OPT_BOOL 2013-08-05 11:32:19 -07:00
stripspace.c builtin/stripspace.c: fix broken indentation 2013-09-06 13:33:17 -07:00
symbolic-ref.c C: have space around && and || operators 2013-10-16 10:26:39 -07:00
tag.c Merge branch 'bk/refs-multi-update' 2013-09-20 12:36:12 -07:00
tar-tree.c tar-tree: remove dependency on sq_quote_print() 2013-07-30 08:10:35 -07:00
unpack-file.c
unpack-objects.c
update-index.c Merge branch 'jl/submodule-mv' 2013-09-09 14:36:15 -07:00
update-ref.c Merge branch 'bk/refs-multi-update' 2013-09-20 12:36:12 -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 pkt-line: provide a LARGE_PACKET_MAX static buffer 2013-02-20 13:42:22 -08:00
var.c
verify-pack.c i18n: verify-pack: mark parseopt strings for translation 2012-08-22 10:58:29 -07:00
verify-tag.c gpg_interface: allow to request status return 2013-02-14 09:30:04 -08:00
write-tree.c i18n: write-tree: mark parseopt strings for translation 2012-08-22 10:58:29 -07:00