function install_import_translations

Imports languages via a batch process during installation.

Parameters

$install_state: An array of information about the current installation state.

Return value

array|null The batch definition, if there are language files to import.

File

core/includes/install.core.inc, line 1744

Code

function install_import_translations(&$install_state) {
    $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.
    $batch_builder = (new BatchBuilder())->setFile(\Drupal::service('extension.path.resolver')->getPath('module', 'locale') . '/locale.batch.inc');
    foreach (install_download_additional_translations_operations($install_state) as $operation) {
        $batch_builder->addOperation($operation[0], $operation[1]);
    }
    $languages = \Drupal::languageManager()->getLanguages();
    if (count($languages) > 1 || !isset($languages['en'])) {
        $batch_builder->addOperation('_install_prepare_import', [
            array_keys($languages),
            $install_state['server_pattern'],
        ]);
        // Set up a batch to import translations for drupal core. Translation import
        // for contrib modules happens in install_import_translations_remaining.
        foreach ($languages as $language) {
            if (locale_translation_use_remote_source()) {
                $batch_builder->addOperation('locale_translation_batch_fetch_download', [
                    'drupal',
                    $language->getId(),
                ]);
            }
            $batch_builder->addOperation('locale_translation_batch_fetch_import', [
                'drupal',
                $language->getId(),
                [],
            ]);
        }
        $module_handler->loadInclude('locale', 'inc', 'locale.fetch');
        $batch_builder->setTitle(t('Updating translations.'))
            ->setProgressMessage('')
            ->setErrorMessage(t('Error importing translation files'))
            ->setFinishCallback('locale_translation_batch_fetch_finished');
        return $batch_builder->toArray();
    }
}