Re: [PATCH v3] Add push --set-upstream

Tay Ray Chuan [off-list ref] writes:

+		switch (ref->status) {
+		case REF_STATUS_NONE:
+		case REF_STATUS_UPTODATE:
+		case REF_STATUS_OK:
+			; /* no-op */
+		default:
			continue;
+		}

Could somebody document what these values (and what "struct ref" has in
general) mean in the transport API documentation?