Small helper feature revert all components

install.php

/**
 * Helper to revert all components within a feature.
 * @param $feature_machine_name
 */
function _feature_revert_all($feature_machine_name) {
  $feature = features_get_features($feature_machine_name);
  $components = array_keys($feature->info['features']);
  features_revert(array($feature_machine_name => $components));
}