UpdateRegistry::scanExtensionsAndLoadUpdateFiles

protected UpdateRegistry::scanExtensionsAndLoadUpdateFiles()

protected function scanExtensionsAndLoadUpdateFiles() {
  // Scan the module list.
  $extension_discovery = new ExtensionDiscovery($this->root, FALSE, [], $this->sitePath);
  $module_extensions = $extension_discovery->scan('module');

  $profile_extensions = $extension_discovery->scan('profile');
  $extensions = array_merge($module_extensions, $profile_extensions);

  $this->loadUpdateFiles($extensions);
}