- $route_name = $entity_type_id != 'node' ? "entity.$entity_type_id.revisions_diff" : 'entity.node.revision';
- $revision_link = Link::fromTextAndUrl($revision_date, Url::fromRoute($route_name, [
- $entity_type_id => $revision->id(),
- $entity_type_id . '_revision' => $revision->getRevisionId(),
- ]))->toString();