From: Junio C Hamano <gitster@pobox.com>
Date: Sun, 30 Mar 2008 19:39:25 +0000 (-0700)
Subject: diff-files: mark an index entry we know is up-to-date as such
X-Git-Tag: v1.5.6-rc0~91^2
X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=8fa29602d4cf8c9ec7d837f7308a9582a8372cb5;p=git.git

diff-files: mark an index entry we know is up-to-date as such

This does not make any difference when running diff-files alone, but if
you internally run run_diff_files() and then run other operations further
on the index, we do not have to run lstat(2) again on entries we already
have checked.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
---

diff --git a/diff-lib.c b/diff-lib.c
index 069e4507a..6e7ab29e3 100644
--- a/diff-lib.c
+++ b/diff-lib.c
@@ -476,8 +476,11 @@ int run_diff_files(struct rev_info *revs, unsigned int option)
 			continue;
 		}
 		changed = ce_match_stat(ce, &st, ce_option);
-		if (!changed && !DIFF_OPT_TST(&revs->diffopt, FIND_COPIES_HARDER))
-			continue;
+		if (!changed) {
+			ce_mark_uptodate(ce);
+			if (!DIFF_OPT_TST(&revs->diffopt, FIND_COPIES_HARDER))
+				continue;
+		}
 		oldmode = ce->ce_mode;
 		newmode = ce_mode_from_stat(ce, st.st_mode);
 		diff_change(&revs->diffopt, oldmode, newmode,