Although the subject line of 613f027 (read-tree -u one-way merge fix
to check out locally modified paths., 2006-05-15) mentions "read-tree
-u", it did not seem to check whether -u was in effect. Not checking
whether -u is in effect makes e.g. "read-tree --reset" lstat() the
worktree, even though the worktree stat should not matter for that
operation.
This speeds up e.g. "git reset" a little on the linux-2.6 repo (best
of five, warm cache):
Before After
real 0m0.288s 0m0.233s
user 0m0.190s 0m0.150s
sys 0m0.090s 0m0.080s
---
I am very unfamiliar with this part of git, so my attempt at a
motivation may be totally off.
I have another twenty-or-so patches to reset.c coming up that take the
timings down to around 90 ms, but this patch was quite unrelated to
that. Those other patches actually make this patch pointless for "git
reset" (it takes another path), but I hope this is still a good change
for other operations that use oneway_merge.
unpack-trees.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/unpack-trees.c b/unpack-trees.c
index 6d96366..61acc5e 100644
--- a/unpack-trees.c
+++ b/unpack-trees.c
@@ -1834,7 +1834,7 @@ int oneway_merge(struct cache_entry **src, struct
unpack_trees_options *o)
if (old && same(old, a)) {
int update = 0;
- if (o->reset && !ce_uptodate(old) && !ce_skip_worktree(old)) {
+ if (o->reset && o->update && !ce_uptodate(old) &&
!ce_skip_worktree(old)) {
struct stat st;
if (lstat(old->name, &st) ||
ie_match_stat(o->src_index, old, &st,
CE_MATCH_IGNORE_VALID|CE_MATCH_IGNORE_SKIP_WORKTREE))
--
1.8.0.1.240.ge8a1f5a
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