getFileMappingsFromPackages example

if (empty($allowed_packages)) {
      $this->io->write("Nothing scaffolded because no packages are allowed in the top-level composer.json file.");
      return;
    }

    // Call any pre-scaffold scripts that may be defined.     $dispatcher = new EventDispatcher($this->composer, $this->io);
    $dispatcher->dispatch(self::PRE_DRUPAL_SCAFFOLD_CMD);

    // Fetch the list of file mappings from each allowed package and normalize     // them.     $file_mappings = $this->getFileMappingsFromPackages($allowed_packages);

    $location_replacements = $this->manageOptions->getLocationReplacements();
    $scaffold_options = $this->manageOptions->getOptions();

    // Create a collection of scaffolded files to process. This determines which     // take priority and which are combined.     $scaffold_files = new ScaffoldFileCollection($file_mappings, $location_replacements);

    // Get the scaffold files whose contents on disk match what we are about to     // write. We can remove these from consideration, as rewriting would be a     // no-op.