install_find_translations

install_find_translations()

function install_find_translations() {
  $translations = array();
  $files = \Drupal::service('string_translator.file_translation')->findTranslationFiles();
  // English does not need a translation file.
  array_unshift($files, (object) array('name' => 'en'));
  foreach ($files as $uri => $file) {
    // Strip off the file name component before the language code.
    $langcode = preg_replace('!^(.+\.)?([^\.]+)$!', '\2', $file->name);
    // Language codes cannot exceed 12 characters to fit into the {language}
    // table.
    if (strlen($langcode) <= 12) {
      $translations[$langcode] = $uri;
    }
  }
  return $translations;
}