transport: don't show push status if --quiet is given

When --quiet is given, the user generally only wants to see
errors. So let's suppress printing the ref status table
unless there is an error, in which case we print out the
whole table.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

transport.c

@@ -681,6 +681,21 @@ static int fetch_refs_via_pack(struct transport *transport,
 	return (refs ? 0 : -1);
 }
 
+static int push_had_errors(struct ref *ref)
+{
+	for (; ref; ref = ref->next) {
+		switch (ref->status) {
+		case REF_STATUS_NONE:
+		case REF_STATUS_UPTODATE:
+		case REF_STATUS_OK:
+			break;
+		default:
+			return 1;
+		}
+	}
+	return 0;
+}
+
 static int refs_pushed(struct ref *ref)
 {
 	for (; ref; ref = ref->next) {
@@ -1010,6 +1025,7 @@ int transport_push(struct transport *transport,
 		struct ref *local_refs = get_local_heads();
 		int match_flags = MATCH_REFS_NONE;
 		int verbose = flags & TRANSPORT_PUSH_VERBOSE;
+		int quiet = flags & TRANSPORT_PUSH_QUIET;
 		int porcelain = flags & TRANSPORT_PUSH_PORCELAIN;
 		int ret;
 
@@ -1025,7 +1041,9 @@ int transport_push(struct transport *transport,
 
 		ret = transport->push_refs(transport, remote_refs, flags);
 
-		print_push_status(transport->url, remote_refs, verbose | porcelain, porcelain);
+		if (!quiet || push_had_errors(remote_refs))
+			print_push_status(transport->url, remote_refs,
+					verbose | porcelain, porcelain);
 
 		if (!(flags & TRANSPORT_PUSH_DRY_RUN)) {
 			struct ref *ref;