Issue #697946 by voleger, pguillard, pillarsdotnet, andypost, alansaviolobo,...

 *   The batch definition, if there are language files to import.

 */

function install_import_translations(&$install_state) {

  \Drupal::moduleHandler()->loadInclude('locale', 'translation.inc');

  $module_handler = \Drupal::moduleHandler();

  $module_handler->loadInclude('locale', 'inc', 'locale.translation');

  // If there is more than one language or the single one is not English, we

  // should import translations.

      $operations[] = ['locale_translation_batch_fetch_import', ['drupal', $language->getId(), []]];

    }

    module_load_include('fetch.inc', 'locale');

    $module_handler->loadInclude('locale', 'inc', 'locale.fetch');

    $batch = [

      'operations' => $operations,

      'title' => t('Updating translations.'),

 *   Server access pattern (to replace language code, version number, etc. in).

 */

function _install_prepare_import($langcodes, $server_pattern) {

  \Drupal::moduleHandler()->loadInclude('locale', 'bulk.inc');

  $module_handler = \Drupal::moduleHandler();

  $module_handler->loadInclude('locale', 'inc', 'locale.bulk');

  $matches = [];

  foreach ($langcodes as $langcode) {

            'status' => 1,

          ];

          \Drupal::service('locale.project')->set($data['name'], $data);

          module_load_include('compare.inc', 'locale');

          $module_handler->loadInclude('locale', 'inc', 'locale.compare');

          // Reset project information static cache so that it uses the data

          // set above.

          locale_translation_clear_cache_projects();

  // Make sure the installation API is available

  include_once __DIR__ . '/install.inc';

  return module_load_include('install', $module);

  if (\Drupal::hasService('extension.list.module')) {

    /** @var \Drupal\Core\Extension\ModuleExtensionList $module_list */

    $module_list = \Drupal::service('extension.list.module');

    $file = DRUPAL_ROOT . '/' . $module_list->getPath($module) . "/$module.install";

    if (is_file($file)) {

      require_once $file;

      return $file;

    }

  }

  return FALSE;

}

/**

 *   (optional) The base file name (without the $type extension). If omitted,

 *   $module is used; i.e., resulting in "$module.$type" by default.

 *

 * @return

 * @return string|false

 *   The name of the included file, if successful; FALSE otherwise.

 *

 * @todo The module_handler service has a loadInclude() method which performs

 *   this same task but only for enabled modules. Figure out a way to move this

 *   functionality entirely into the module_handler while keeping the ability to

 *   load the files of disabled modules.

 * @deprecated in drupal:9.4.0 and is removed from drupal:11.0.0.

 *   Use \Drupal::moduleHandler()->loadInclude($module, $type, $name = NULL).

 *   Note that including code from uninstalled extensions is no longer

 *   supported.

 *

 * @see https://www.drupal.org/node/2948698

 */

function module_load_include($type, $module, $name = NULL) {

  @trigger_error("module_load_include() is deprecated in drupal:9.4.0 and is removed from drupal:11.0.0. Instead, you should use \Drupal::moduleHandler()->loadInclude(). Note that including code from uninstalled extensions is no longer supported. See https://www.drupal.org/project/drupal/issues/697946", E_USER_DEPRECATED);

  if (!isset($name)) {

    $name = $module;

  }

  }

  [$module, $name] = explode('_post_update_', $function, 2);

  module_load_include('php', $module, $module . '.post_update');

  \Drupal::moduleHandler()->loadInclude($module, 'php', $module . '.post_update');

  if (function_exists($function)) {

    try {

      $ret['results']['query'] = $function($context['sandbox']);

   *   - files: An optional array defining include files that need to be loaded

   *     for building the form. Each array entry may be the path to a file or

   *     another array containing values for the parameters 'type', 'module' and

   *     'name' as needed by module_load_include(). The files listed here are

   *     automatically loaded by \Drupal::formBuilder()->getCache(). By default

   *     the current menu router item's 'file' definition is added, if any. Use

   *     self::loadInclude() to add include files from a form constructor.

   *     'name' as needed by \Drupal::moduleHandler()->loadInclude(). The files

   *     listed here are automatically loaded by

   *     \Drupal::formBuilder()->getCache(). By default the current menu router

   *     item's 'file' definition is added, if any. Use self::loadInclude() to

   *     add include files from a form constructor.

   *   - form_id: Identification of the primary form being constructed and

   *     processed.

   *   - base_form_id: Identification for a base form, as declared in the form

   *   $form_state->loadInclude('node', 'inc', 'node.admin');

   * @endcode

   *

   * Use this function instead of module_load_include() from inside a form

   * constructor or any form processing logic as it ensures that the include file

   * is loaded whenever the form is processed. In contrast to using

   * module_load_include() directly, this method makes sure the include file is

   * correctly loaded also if the form is cached.

   * Use this function instead of \Drupal::moduleHandler()->loadInclude()

   * from inside a form constructor or any form processing logic as it ensures

   * that the include file is loaded whenever the form is processed. In contrast

   * to using \Drupal::moduleHandler()->loadInclude() directly, this method

   * makes sure the include file is correctly loaded also if the form is cached.

   *

   * @param string $module

   *   The module to which the include file belongs.

   *   The filepath of the loaded include file, or FALSE if the include file was

   *   not found or has been loaded already.

   *

   * @see module_load_include()

   * @see \Drupal\Core\Extension\ModuleHandlerInterface::loadInclude()

   */

  public function loadInclude($module, $type, $name = NULL);