listContent example

else {
      // Put the sync directory inside the profile.       $config_sync_directory = $path . '/config/sync';
    }

    mkdir($path, 0777, TRUE);
    file_put_contents("$path/{$this->profile}.info.yml", Yaml::encode($info));

    // Create config/sync directory and extract tarball contents to it.     mkdir($config_sync_directory, 0777, TRUE);
    $files = [];
    $list = $archiver->listContent();
    if (is_array($list)) {
      /** @var array $list */
      foreach ($list as $file) {
        $files[] = $file['filename'];
      }
      $archiver->extractList($files, $config_sync_directory);
    }

    // Add the module that is providing the database driver to the list of     // modules that can not be uninstalled in the core.extension configuration.     if (file_exists($config_sync_directory . '/core.extension.yml')) {
      

$this->tar->extract($path, FALSE, FALSE);
    }

    return $this;
  }

  /** * {@inheritdoc} */
  public function listContents() {
    $files = [];
    foreach ($this->tar->listContent() as $file_data) {
      $files[] = $file_data['filename'];
    }
    return $files;
  }

  /** * Retrieves the tar engine itself. * * In some cases it may be necessary to directly access the underlying * ArchiveTar object for implementation-specific logic. This is for advanced * use only as it is not shared by other implementations of ArchiveInterface. * * @return ArchiveTar * The ArchiveTar object used by this object. */

  /** * {@inheritdoc} */
  public function submitForm(array &$form, FormStateInterface $form_state) {
    if ($path = $form_state->getValue('import_tarball')) {
      $this->configStorage->deleteAll();
      try {
        $archiver = new ArchiveTar($path, 'gz');
        $files = [];
        foreach ($archiver->listContent() as $file) {
          $files[] = $file['filename'];
        }
        $archiver->extractList($files, $this->settings->get('config_sync_directory'), '', FALSE, FALSE);
        $this->messenger()->addStatus($this->t('Your configuration files were successfully uploaded and are ready for import.'));
        $form_state->setRedirect('config.sync');
      }
      catch (\Exception $e) {
        $this->messenger()->addError($this->t('Could not extract the contents of the tar file. The error message is <em>@message</em>', ['@message' => $e->getMessage()]));
      }
      $this->fileSystem->unlink($path);
    }
  }

$this->assertEquals(['foo' => 'baz'], $data, 'The config_test.update in collection.test1 exists in the snapshot storage.');
    $this->assertFalse($test1_snapshot->read('config_test.create'), 'The config_test.create in collection.test1 does not exist in the snapshot storage.');
    $test2_snapshot = $snapshot_storage->createCollection('collection.test2');
    $data = $test2_snapshot->read('config_test.another_delete');
    $this->assertEquals(['foo' => 'bar'], $data, 'The config_test.another_delete in collection.test2 exists in the snapshot storage.');
    $data = $test2_snapshot->read('config_test.another_update');
    $this->assertEquals(['foo' => 'baz'], $data, 'The config_test.another_update in collection.test2 exists in the snapshot storage.');
    $this->assertFalse($test2_snapshot->read('config_test.another_create'), 'The config_test.another_create in collection.test2 does not exist in the snapshot storage.');

    // Create the tar that contains the expected content for the collections.     $tar = new ArchiveTar($filename, 'gz');
    $content_list = $tar->listContent();
    // Convert the list of files into something easy to search.     $files = [];
    foreach ($content_list as $file) {
      $files[] = $file['filename'];
    }
    $this->assertContains('collection/test1/config_test.create.yml', $files, 'Config export contains collection/test1/config_test.create.yml.');
    $this->assertContains('collection/test2/config_test.another_create.yml', $files, 'Config export contains collection/test2/config_test.another_create.yml.');
    $this->assertContains('collection/test1/config_test.update.yml', $files, 'Config export contains collection/test1/config_test.update.yml.');
    $this->assertContains('collection/test2/config_test.another_update.yml', $files, 'Config export contains collection/test2/config_test.another_update.yml.');
    $this->assertNotContains('collection/test1/config_test.delete.yml', $files, 'Config export does not contain collection/test1/config_test.delete.yml.');
    $this->assertNotContains('collection/test2/config_test.another_delete.yml', $files, 'Config export does not contain collection/test2/config_test.another_delete.yml.');