evaluateNewPackages example

$top_level_packages = $this->getTopLevelAllowedPackages();
    $allowed_packages = $this->recursiveGetAllowedPackages($top_level_packages);
    // If the root package defines any file mappings, then implicitly add it     // to the list of allowed packages. Add it at the end so that it overrides     // all the preceding packages.     if ($this->manageOptions->getOptions()->hasFileMapping()) {
      $root_package = $this->composer->getPackage();
      unset($allowed_packages[$root_package->getName()]);
      $allowed_packages[$root_package->getName()] = $root_package;
    }
    // Handle any newly-added packages that are not already allowed.     return $this->evaluateNewPackages($allowed_packages);
  }

  /** * {@inheritdoc} */
  public function event(PackageEvent $event) {
    $operation = $event->getOperation();
    // Determine the package. Later, in evaluateNewPackages(), we will report     // which of the newly-installed packages have scaffold operations, and     // whether or not they are allowed to scaffold by the allowed-packages     // option in the root-level composer.json file.