X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=builtin-update-index.c;h=a7a4574f2bff2a7db4a1c25aa4a514ad99760381;hb=e598c5177e439271e8bd81ef2a689a3ab0db80e6;hp=509369e9e7b1719e53ba2dd2d976066fb9513353;hpb=b941ffac506d3f57246e46a8913da614e62a1d48;p=git.git

diff --git a/builtin-update-index.c b/builtin-update-index.c
index 509369e9e..a7a4574f2 100644
--- a/builtin-update-index.c
+++ b/builtin-update-index.c
@@ -86,9 +86,15 @@ static int process_lstat_error(const char *path, int err)
 
 static int add_one_path(struct cache_entry *old, const char *path, int len, struct stat *st)
 {
-	int option, size = cache_entry_size(len);
-	struct cache_entry *ce = xcalloc(1, size);
+	int option, size;
+	struct cache_entry *ce;
+
+	/* Was the old index entry already up-to-date? */
+	if (old && !ce_stage(old) && !ce_match_stat(old, st, 0))
+		return 0;
 
+	size = cache_entry_size(len);
+	ce = xcalloc(1, size);
 	memcpy(ce->name, path, len);
 	ce->ce_flags = htons(len);
 	fill_stat_cache_info(ce, st);