--- /dev/null
+/**
+ * Implements hook_verify_update_archive().
+ */
+function {{ machine_name }}_verify_update_archive($project, $archive_file, $directory) {
+ $errors = array();
+ if (!file_exists($directory)) {
+ $errors[] = t('The %directory does not exist.', array('%directory' => $directory));
+ }
+ // Add other checks on the archive integrity here.
+ return $errors;
+}