ConfigImporter::checkOp

protected ConfigImporter::checkOp($collection, $op, $name)

protected function checkOp($collection, $op, $name) {
  if ($op == 'rename') {
    $names = $this->storageComparer->extractRenameNames($name);
    $target_exists = $this->storageComparer->getTargetStorage($collection)->exists($names['new_name']);
    if ($target_exists) {
      // If the target exists, the rename has already occurred as the
      // result of a secondary configuration write. Change the operation
      // into an update. This is the desired behavior since renames often
      // have to occur together. For example, renaming a node type must
      // also result in renaming its fields and entity displays.
      $this->storageComparer->moveRenameToUpdate($name);
      return FALSE;
    }
    return TRUE;
  }
  $target_exists = $this->storageComparer->getTargetStorage($collection)->exists($name);
  switch ($op) {
    case 'delete':
      if (!$target_exists) {
        // The configuration has already been deleted. For example, a field
        // is automatically deleted if all the instances are.
        $this->setProcessedConfiguration($collection, $op, $name);
        return FALSE;
      }
      break;

    case 'create':
      if ($target_exists) {
        // If the target already exists, use the entity storage to delete it
        // again, if is a simple config, delete it directly.
        if ($entity_type_id = $this->configManager->getEntityTypeIdByName($name)) {
          $entity_storage = $this->configManager->getEntityManager()->getStorage($entity_type_id);
          $entity_type = $this->configManager->getEntityManager()->getDefinition($entity_type_id);
          $entity = $entity_storage->load($entity_storage->getIDFromConfigName($name, $entity_type->getConfigPrefix()));
          $entity->delete();
          $this->logError($this->t('Deleted and replaced configuration entity "@name"', array('@name' => $name)));
        }
        else {
          $this->storageComparer->getTargetStorage($collection)->delete($name);
          $this->logError($this->t('Deleted and replaced configuration "@name"', array('@name' => $name)));
        }
        return TRUE;
      }
      break;

    case 'update':
      if (!$target_exists) {
        $this->logError($this->t('Update target "@name" is missing.', array('@name' => $name)));
        // Mark as processed so that the synchronization continues. Once the
        // the current synchronization is complete it will show up as a
        // create.
        $this->setProcessedConfiguration($collection, $op, $name);
        return FALSE;
      }
      break;
  }
  return TRUE;
}