locale_translate_batch_import

locale_translate_batch_import($file, array $options, &$context)

function locale_translate_batch_import($file, array $options, &$context) {
  // Merge the default values in the $options array.
  $options += array(
    'overwrite_options' => array(),
    'customized' => LOCALE_NOT_CUSTOMIZED,
  );

  if (isset($file->langcode) && $file->langcode != LanguageInterface::LANGCODE_NOT_SPECIFIED) {

    try {
      if (empty($context['sandbox'])) {
        $context['sandbox']['parse_state'] = array(
          'filesize' => filesize(drupal_realpath($file->uri)),
          'chunk_size' => 200,
          'seek' => 0,
        );
      }
      // Update the seek and the number of items in the $options array().
      $options['seek'] = $context['sandbox']['parse_state']['seek'];
      $options['items'] = $context['sandbox']['parse_state']['chunk_size'];
      $report = Gettext::fileToDatabase($file, $options);
      // If not yet finished with reading, mark progress based on size and
      // position.
      if ($report['seek'] < filesize($file->uri)) {

        $context['sandbox']['parse_state']['seek'] = $report['seek'];
        // Maximize the progress bar at 95% before completion, the batch API
        // could trigger the end of the operation before file reading is done,
        // because of floating point inaccuracies. See
        // https://www.drupal.org/node/1089472.
        $context['finished'] = min(0.95, $report['seek'] / filesize($file->uri));
        if (isset($options['message'])) {
          $context['message'] = t('@message (@percent%).', array('@message' => $options['message'], '@percent' => (int) ($context['finished'] * 100)));
        }
        else {
          $context['message'] = t('Importing translation file: %filename (@percent%).', array('%filename' => $file->filename, '@percent' => (int) ($context['finished'] * 100)));
        }
      }
      else {
        // We are finished here.
        $context['finished'] = 1;

        // Store the file data for processing by the next batch operation.
        $file->timestamp = filemtime($file->uri);
        $context['results']['files'][$file->uri] = $file;
        $context['results']['languages'][$file->uri] = $file->langcode;
      }

      // Add the reported values to the statistics for this file.
      // Each import iteration reports statistics in an array. The results of
      // each iteration are added and merged here and stored per file.
      if (!isset($context['results']['stats']) || !isset($context['results']['stats'][$file->uri])) {
        $context['results']['stats'][$file->uri] = array();
      }
      foreach ($report as $key => $value) {
        if (is_numeric($report[$key])) {
          if (!isset($context['results']['stats'][$file->uri][$key])) {
            $context['results']['stats'][$file->uri][$key] = 0;
          }
          $context['results']['stats'][$file->uri][$key] += $report[$key];
        }
        elseif (is_array($value)) {
          $context['results']['stats'][$file->uri] += array($key => array());
          $context['results']['stats'][$file->uri][$key] = array_merge($context['results']['stats'][$file->uri][$key], $value);
        }
      }
    }
    catch (Exception $exception) {
      // Import failed. Store the data of the failing file.
      $context['results']['failed_files'][] = $file;
      \Drupal::logger('locale')->notice('Unable to import translations file: @file', array('@file' => $file->uri));
    }
  }
}