X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=builtin-diff-index.c;h=81e7167438ecfc25a6f9a317af663034d653588e;hb=e4cd6c7a20bfc776086817671d58e09060a8079a;hp=dc52c054ee680132ea2a5041d84c976cf036c773;hpb=2dcb927f37976ef5185cef5452516b170b14cd6c;p=git.git

diff --git a/builtin-diff-index.c b/builtin-diff-index.c
index dc52c054e..81e716743 100644
--- a/builtin-diff-index.c
+++ b/builtin-diff-index.c
@@ -9,20 +9,21 @@ 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;
 
 	argc = setup_revisions(argc, argv, &rev, NULL);
 	for (i = 1; i < argc; i++) {
 		const char *arg = argv[i];
-			
+
 		if (!strcmp(arg, "--cached"))
 			cached = 1;
 		else
@@ -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;
 }