Drush i18ncheck

i18n_check.drush.inc

<?php
/**
 * @file
 * Drush module to check if all translatable strings are safe to translate.
 */

/**
 * Implements hook_drush_help().
 */
function i18n_check_drush_help($section) {
  switch ($section) {
    case 'drush:i18n-check':
      return dt('Check all translatable strings in your drupal installation to find invalid ones.');
  }
}

/**
 * Implements hook_drush_command().
 */
function i18n_check_drush_command() {
  $items = array();

  $items['i18n-check'] = array(
    'description' => 'Check all translatable strings in your drupal installation to find invalid ones.',
    'callback' => 'drush_i18n_check',
    'aliases' => array('i24k'),
  );

  return $items;
}

/**
 * Check translatable strings.
 */
function drush_i18n_check() {
  // Prepare temporary directory
  $tmp_uri = 'temporary://i18ncheck';
  if (!file_prepare_directory($tmp_uri, FILE_CREATE_DIRECTORY | FILE_MODIFY_PERMISSIONS)) {
    drush_log('Unable to write in temporary directory.', 'error');
  }
  $tmp_dir = drupal_realpath($tmp_uri);

  // If directory is empty, clone Drupal
  $dir_content = file_scan_directory($tmp_uri, '#^[^.]#');
  if (empty($dir_content)) {
    $cmd = "git clone --branch 8.0.x http://git.drupal.org/project/drupal.git $tmp_dir";
  }
  // Else update repository
  else {
    $cmd = "cd $tmp_dir && git pull origin 8.0.x";
  }
  exec($cmd);

  // Get PotX
  $potx_dir = drupal_realpath(__DIR__ . '/../potx');
  if (!is_dir($potx_dir)) {
    $cmd = "git clone --branch 7.x-3.x http://git.drupal.org/project/potx.git $potx_dir";
  }
  else {
    $cmd = "cd $potx_dir && git pull origin 7.x-3.x";
  }
  exec($cmd);
  exec("drush cc drush");

  // Run Potx
  $cmd = "drush potx single --api=8 --folder=$tmp_dir/core";
  exec($cmd);

  // Extract strings
  $cmd = 'grep "#:" -A 1 general.pot > i24k_strings';
  exec($cmd);

  // Ensure the locale_string_is_safe is usable even if the locale module is not
  // enabled (it does not need to).
  module_load_include('module', 'locale');

  // Search strings to find bad ones.
  $f = fopen('i24k_strings', 'r');
  while ($file_ref = fgets($f)) {
    $translatable = fgets($f);
    $translatable = preg_replace('#^msgid "(.*?)"\s*$#', '$1', $translatable);
    $translatable = str_replace('\\"', '"', $translatable);
    fgets($f); // Skip separator line.

    if (!empty($translatable) && !locale_string_is_safe($translatable)) {
      echo $file_ref . "\n" . $translatable . "\n\n";
    }
  }

  // Clean files
  $cmd = "rm -rf general.pot i24k_strings";
  exec($cmd);
}