test-lib.sh: Suppress the "passed all ..." message if no tests run

diff --git a/diff.c b/diff.c
index 208096fe461b483a0646bb583fd2158c3179823f..95706a5b4098afc8f20fe53425ff760c996a3b4e 100644 (file)
--- a/diff.c
+++ b/diff.c
@@ -1397,7 +1397,7 @@ int print_stat_summary(FILE *fp, int files, int insertions, int deletions)
 
        if (!files) {
                assert(insertions == 0 && deletions == 0);
-               return fputs(_(" 0 files changed\n"), fp);
+               return fprintf(fp, "%s\n", _(" 0 files changed"));
        }
 
        strbuf_addf(&sb,
@@ -2992,9 +2992,8 @@ static void run_diff_cmd(const char *pgm,
        int complete_rewrite = (p->status == DIFF_STATUS_MODIFIED) && p->score;
        int must_show_header = 0;
 
-       if (!DIFF_OPT_TST(o, ALLOW_EXTERNAL))
-               pgm = NULL;
-       else {
+
+       if (DIFF_OPT_TST(o, ALLOW_EXTERNAL)) {
                struct userdiff_driver *drv = userdiff_find_by_path(attr_path);
                if (drv && drv->external)
                        pgm = drv->external;
@@ -3074,6 +3073,9 @@ static void run_diff(struct diff_filepair *p, struct diff_options *o)
        if (o->prefix_length)
                strip_prefix(o->prefix_length, &name, &other);
 
+       if (!DIFF_OPT_TST(o, ALLOW_EXTERNAL))
+               pgm = NULL;
+
        if (DIFF_PAIR_UNMERGED(p)) {
                run_diff_cmd(pgm, name, NULL, attr_path,
                             NULL, NULL, NULL, o, p);