ConfigImporter::initialize

public ConfigImporter::initialize()

public function initialize() {
  // Ensure that the changes have been validated.
  $this->validate();

  if (!$this->lock->acquire(static::LOCK_NAME)) {
    // Another process is synchronizing configuration.
    throw new ConfigImporterException(sprintf('%s is already importing', static::LOCK_NAME));
  }

  $sync_steps = array();
  $modules = $this->getUnprocessedExtensions('module');
  foreach (array('install', 'uninstall') as $op) {
    $this->totalExtensionsToProcess += count($modules[$op]);
  }
  $themes = $this->getUnprocessedExtensions('theme');
  foreach (array('install', 'uninstall') as $op) {
    $this->totalExtensionsToProcess += count($themes[$op]);
  }

  // We have extensions to process.
  if ($this->totalExtensionsToProcess > 0) {
    $sync_steps[] = 'processExtensions';
  }
  $sync_steps[] = 'processConfigurations';
  $sync_steps[] = 'processMissingContent';
  // Allow modules to add new steps to configuration synchronization.
  $this->moduleHandler->alter('config_import_steps', $sync_steps, $this);
  $sync_steps[] = 'finish';
  return $sync_steps;
}