$mask) { $files = file_scan_directory($directory, $mask); $custom_links = db_select('xmlsitemap', 'x') ->fields('x', array('loc', 'id')) ->condition('x.type', 'custom') ->condition('x.subtype', $directory) ->execute() ->fetchAllAssoc('loc', PDO::FETCH_ASSOC); watchdog('xmlsitemap', 'Files:

' . var_export($files, TRUE), WATCHDOG_NOTICE);
    watchdog('xmlsitemap', 'Custom: ' . var_export($custom_links, TRUE), WATCHDOG_NOTICE);

    foreach (array_diff_key($files, $custom_links) as $missing => $info) {
      $link = array(
        'type' => 'custom',
        'subtype' => $directory,
        'loc' => $missing,
        'id' => db_query("SELECT MAX(id) FROM {xmlsitemap} WHERE type = 'custom'")->fetchField() + 1,
        'priority' => XMLSITEMAP_PRIORITY_DEFAULT,
        'lastmod' => 0,
        'changefreq' => 0,
        'changecount' => 0,
        'language' => LANGUAGE_NONE,
      );
      xmlsitemap_link_save($link);
      watchdog('xmlsitemap', 'Added a custom link for %loc.', array('%loc' => $link['loc']), WATCHDOG_NOTICE);
      $results[$directory]['add'][] = $link['loc'];
    }

    foreach (array_diff_key($custom_links, $files) as $extra => $info) {
      xmlsitemap_link_delete('custom', $custom_links[$extra]);
      $results[$directory]['delete'][] = $extra;
      watchdog('xmlsitemap', 'Deleted the custom link for %loc.', array('%loc' => $extra), WATCHDOG_NOTICE);
    }
  }
  return $results;
}