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authorLibravatar Nipunn Koorapati <nipunn@dropbox.com>2021-03-17 21:22:21 +0000
committerLibravatar Junio C Hamano <gitster@pobox.com>2021-03-18 13:31:11 -0700
commit4f3d6d026176a48991c4e5ff95c8db583af38148 (patch)
tree119a96236731fba661b8ee962f215ef7963e8510
parentGit 2.31 (diff)
downloadtgif-4f3d6d026176a48991c4e5ff95c8db583af38148.tar.xz
fsmonitor: skip lstat deletion check during git diff-index
Teach git to honor fsmonitor rather than issuing an lstat when checking for dirty local deletes. Eliminates O(files) lstats during `git diff HEAD` Signed-off-by: Nipunn Koorapati <nipunn@dropbox.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
-rw-r--r--diff-lib.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/diff-lib.c b/diff-lib.c
index b73cc1859a..3fb538ad18 100644
--- a/diff-lib.c
+++ b/diff-lib.c
@@ -30,7 +30,7 @@
*/
static int check_removed(const struct cache_entry *ce, struct stat *st)
{
- if (lstat(ce->name, st) < 0) {
+ if (!(ce->ce_flags & CE_FSMONITOR_VALID) && lstat(ce->name, st) < 0) {
if (!is_missing_file_error(errno))
return -1;
return 1;
@@ -574,6 +574,7 @@ int run_diff_index(struct rev_info *revs, unsigned int option)
struct object_id oid;
const char *name;
char merge_base_hex[GIT_MAX_HEXSZ + 1];
+ struct index_state *istate = revs->diffopt.repo->index;
if (revs->pending.nr != 1)
BUG("run_diff_index must be passed exactly one tree");
@@ -581,6 +582,8 @@ int run_diff_index(struct rev_info *revs, unsigned int option)
trace_performance_enter();
ent = revs->pending.objects;
+ refresh_fsmonitor(istate);
+
if (merge_base) {
diff_get_merge_base(revs, &oid);
name = oid_to_hex_r(merge_base_hex, &oid);