X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=builtin-diff-index.c;h=d90eba95a6be17bd0486e0311c2657b1f69ab7d9;hb=93969438dca50c7f0039fcf35e7ab82776d4122f;hp=dc52c054ee680132ea2a5041d84c976cf036c773;hpb=fff8fd5b1ee9c13694c29ba3544f5b1ebf0f4fb2;p=git.git

diff --git a/builtin-diff-index.c b/builtin-diff-index.c
index dc52c054e..d90eba95a 100644
--- a/builtin-diff-index.c
+++ b/builtin-diff-index.c
@@ -9,13 +9,14 @@ static const char diff_cache_usage[] =
 "[<common diff options>] <tree-ish> [<path>...]"
 COMMON_DIFF_OPTIONS_HELP;
 
-int cmd_diff_index(int argc, const char **argv, char **envp)
+int cmd_diff_index(int argc, const char **argv, const char *prefix)
 {
 	struct rev_info rev;
 	int cached = 0;
 	int i;
+	int result;
 
-	init_revisions(&rev);
+	init_revisions(&rev, prefix);
 	git_config(git_default_config); /* no "diff" UI options */
 	rev.abbrev = 0;
 
@@ -38,5 +39,10 @@ int cmd_diff_index(int argc, const char **argv, char **envp)
 	if (rev.pending.nr != 1 ||
 	    rev.max_count != -1 || rev.min_age != -1 || rev.max_age != -1)
 		usage(diff_cache_usage);
-	return run_diff_index(&rev, cached);
+	if (read_cache() < 0) {
+		perror("read_cache");
+		return -1;
+	}
+	result = run_diff_index(&rev, cached);
+	return rev.diffopt.exit_with_status ? rev.diffopt.has_changes: result;
 }