Update translations on a Drupal site

drupal_language_update.php

<?php
  // Update translations
  // This might need some 'splainin':
  // RecursiveDirectoryIterator together with RecursiveIteratorIterator
  // loops through all files in the give root directory.
  // RegexIterator filters out the files we want (modules-topbar and
  // themes-xskane) translations in this case. Matches the languages code
  // and filename. Then we loop through it and win.
  $di = new RecursiveDirectoryIterator('./sites/all/translations/');
  $it = new RecursiveIteratorIterator($di);
  $po = new RegexIterator(
    $it,
    '/^(?:.*\/)?(?:modules-topbar|themes-xskane)\.([a-z]{2,})\.po$/', // Tweak to match your modules/themes
    RecursiveRegexIterator::GET_MATCH
  );

  require('includes/locale.inc');
  $languages = language_list();
  foreach ($po as $translation) {
    $file = (object) array('filepath' => $translation[0]);
    $langcode = $translation[1];

    // Only import for activated languages
    if (array_key_exists($langcode, $languages)) {
      if (!_locale_import_po($file, $langcode, LOCALE_IMPORT_OVERWRITE)) {
        drupal_set_message('Failed to import ' . $file->filepath);
      }
    }
  }

You've seen http://drupal.org/project/l10n_update as well?

I have not. :P I just made the old skane.com a bit prettier.
And I got to use RegexIterator which it turns out, is awesome! :D

Seems like some crazy stuff there! I imagine a certain import of a norwegian API could have made good use of that :P