StorageComparer::addChangelistUpdate

protected StorageComparer::addChangelistUpdate($collection)

protected function addChangelistUpdate($collection) {
  $recreates = array();
  foreach (array_intersect($this->sourceNames[$collection], $this->targetNames[$collection]) as $name) {
    $source_data = $this->getSourceStorage($collection)->read($name);
    $target_data = $this->getTargetStorage($collection)->read($name);
    if ($source_data !== $target_data) {
      if (isset($source_data['uuid']) && $source_data['uuid'] !== $target_data['uuid']) {
        // The entity has the same file as an existing entity but the UUIDs do
        // not match. This means that the entity has been recreated so config
        // synchronization should do the same.
        $recreates[] = $name;
      }
      else {
        $this->addChangeList($collection, 'update', array($name));
      }
    }
  }

  if (!empty($recreates)) {
    // Recreates should become deletes and creates. Deletes should be ordered
    // so that dependencies are deleted first.
    $this->addChangeList($collection, 'create', $recreates, $this->sourceNames[$collection]);
    $this->addChangeList($collection, 'delete', $recreates, array_reverse($this->targetNames[$collection]));

  }
}