fetch: stop clobbering existing tags without --force

diff --git a/builtin/fetch.c b/builtin/fetch.c
index 767406ee05b8bf575ba4d819fe443eea5de7b92e..683f70d71eda87196c4a4dd86cdce87bcc347e99 100644 (file)
--- a/builtin/fetch.c
+++ b/builtin/fetch.c
@@ -664,12 +664,18 @@ static int update_local_ref(struct ref *ref,
 
        if (!is_null_oid(&ref->old_oid) &&
            starts_with(ref->name, "refs/tags/")) {
-               int r;
-               r = s_update_ref("updating tag", ref, 0);
-               format_display(display, r ? '!' : 't', _("[tag update]"),
-                              r ? _("unable to update local ref") : NULL,
-                              remote, pretty_ref, summary_width);
-               return r;
+               if (force || ref->force) {
+                       int r;
+                       r = s_update_ref("updating tag", ref, 0);
+                       format_display(display, r ? '!' : 't', _("[tag update]"),
+                                      r ? _("unable to update local ref") : NULL,
+                                      remote, pretty_ref, summary_width);
+                       return r;
+               } else {
+                       format_display(display, '!', _("[rejected]"), _("would clobber existing tag"),
+                                      remote, pretty_ref, summary_width);
+                       return 1;
+               }
        }
 
        current = lookup_commit_reference_gently(&ref->old_oid, 1);