OPENEUROPA-2147: Implementation of third approach with local import translations.

composer.json

@@ -15,7 +15,6 @@
         "composer/installers": "~1.5",
         "drupal-composer/drupal-scaffold": "^2.5.2",
         "drupal/config_devel": "~1.2",
-        "drupal/console": "~1.0",
         "drupal/devel": "~1.2",
         "drupal/drupal-extension": "~4.0",
         "drush/drush": "~9.0@stable",

oe_multilingual.services.yml

@@ -10,4 +10,4 @@ services:
     arguments: ['@language_manager', '@path.matcher', '@oe_multilingual.helper']
   oe_multilingual.local_translations_batcher:
     class: Drupal\oe_multilingual\LocalTranslationsBatcher
-    arguments: ['@module_handler', '@theme_handler', '@language_manager', '@extension.list.module', '@extension.list.theme', '@extension.list.profile']
+    arguments: ['@module_handler', '@theme_handler', '@language_manager', '@extension.list.module', '@extension.list.theme', '@extension.list.profile', '@file_system']

phpunit.xml.dist

@@ -6,7 +6,7 @@
     <env name="SIMPLETEST_IGNORE_DIRECTORIES" value="${drupal.root}"/>
     <env name="SIMPLETEST_BASE_URL" value="${drupal.base_url}"/>
     <env name="SIMPLETEST_DB" value="mysql://${drupal.database.user}:${drupal.database.password}@${drupal.database.host}:${drupal.database.port}/${drupal.database.name}"/>
-    <env name="MINK_DRIVER_ARGS_WEBDRIVER" value='["${selenium.browser}", null, "${selenium.host}/wd/hub"]'/>
+    <env name="MINK_DRIVER_ARGS_WEBDRIVER" value='["${selenium.browser}", null, "${selenium.host}:${selenium.port}/wd/hub"]'/>
   </php>
   <testsuites>
     <testsuite>

src/Commands/MultilingualCommands.php

@@ -44,13 +44,22 @@ public function __construct(LocalTranslationsBatcher $localTranslationsBatcher)
    */
   public function importLocalTranslations(array $options = ['langcodes' => self::OPT]): void {
     $langcodes = $options['langcodes'] ? $options['langcodes'] : [];
+
     $this->localTranslationsBatcher->createBatch($langcodes);
     $batch =& batch_get();
     if (!$batch) {
       return;
     }
 
     drush_backend_batch_process();
+    // Update config translations.
+    if ($batch = locale_config_batch_update_components([])) {
+      $this->logger()->notice('Importing configuration translations...');
+      batch_set($batch);
+      drush_backend_batch_process();
+      $this->logger()->notice('Done.');
+    }
+
   }
 
 }

src/LocalTranslationsBatcher.php

@@ -4,12 +4,16 @@
 
 namespace Drupal\oe_multilingual;
 
+use Drupal\Core\DependencyInjection\DependencySerializationTrait;
 use Drupal\Core\Extension\ModuleExtensionList;
 use Drupal\Core\Extension\ModuleHandlerInterface;
 use Drupal\Core\Extension\ProfileExtensionList;
 use Drupal\Core\Extension\ThemeExtensionList;
 use Drupal\Core\Extension\ThemeHandlerInterface;
+use Drupal\Core\File\FileSystemInterface;
 use Drupal\Core\Language\LanguageManagerInterface;
+use Drupal\Core\StringTranslation\StringTranslationTrait;
+use Drupal\locale\Gettext;
 
 /**
  * Creates the batches for importing the local translations.
@@ -19,6 +23,9 @@
  */
 class LocalTranslationsBatcher {
 
+  use StringTranslationTrait;
+  use DependencySerializationTrait;
+
   /**
    * The module handler.
    *
@@ -61,6 +68,13 @@ class LocalTranslationsBatcher {
    */
   protected $profileExtensionList;
 
+  /**
+   * The file system service.
+   *
+   * @var \Drupal\Core\File\FileSystemInterface
+   */
+  protected $fileSystem;
+
   /**
    * LocalTranslationsBatcher constructor.
    *
@@ -76,14 +90,17 @@ class LocalTranslationsBatcher {
    *   The theme extensions list.
    * @param \Drupal\Core\Extension\ProfileExtensionList $profileExtensionList
    *   The profile extensions list.
+   * @param \Drupal\Core\File\FileSystemInterface $fileSystem
+   *   The file system service.
    */
-  public function __construct(ModuleHandlerInterface $moduleHandler, ThemeHandlerInterface $themeHandler, LanguageManagerInterface $languageManager, ModuleExtensionList $moduleExtensionList, ThemeExtensionList $themeExtensionList, ProfileExtensionList $profileExtensionList) {
+  public function __construct(ModuleHandlerInterface $moduleHandler, ThemeHandlerInterface $themeHandler, LanguageManagerInterface $languageManager, ModuleExtensionList $moduleExtensionList, ThemeExtensionList $themeExtensionList, ProfileExtensionList $profileExtensionList, FileSystemInterface $fileSystem) {
     $this->moduleHandler = $moduleHandler;
     $this->themeHandler = $themeHandler;
     $this->languageManager = $languageManager;
     $this->moduleExtensionList = $moduleExtensionList;
     $this->themeExtensionList = $themeExtensionList;
     $this->profileExtensionList = $profileExtensionList;
+    $this->fileSystem = $fileSystem;
   }
 
   /**
@@ -95,10 +112,8 @@ public function __construct(ModuleHandlerInterface $moduleHandler, ThemeHandlerI
    * @see \Drupal\locale\Form\TranslationStatusForm::submitForm()
    */
   public function createBatch(array $langcodes = []): void {
-    $this->moduleHandler->loadInclude('locale', 'fetch.inc');
-    $this->moduleHandler->loadInclude('locale', 'bulk.inc');
-    $this->moduleHandler->loadInclude('locale', 'translation.inc');
     $this->moduleHandler->loadInclude('locale', 'inc', 'locale.compare');
+    $this->moduleHandler->loadInclude('locale', 'inc', 'locale.bulk');
 
     if (!$langcodes) {
       $languages = $this->languageManager->getLanguages();
@@ -113,18 +128,29 @@ public function createBatch(array $langcodes = []): void {
     }
 
     $extensions = $this->getExtensionsToTranslate();
-    if (!$extensions) {
+    if (!$extensions || !$langcodes) {
       return;
     }
 
-    locale_translation_flush_projects();
-    locale_translation_check_projects_local($extensions, $langcodes);
-    $options = _locale_translation_default_update_options();
-    $batch = locale_translation_batch_fetch_build($extensions, $langcodes, $options);
-    batch_set($batch);
-    if ($batch = locale_config_batch_update_components($options, $langcodes)) {
-      batch_set($batch);
+    // Build operations for local translation batch import.
+    $operations = [];
+    foreach ($extensions as $extension) {
+      $operations[] = [
+        [$this, 'importProjectPoFiles'],
+        [$extension, $langcodes],
+      ];
     }
+
+    $batch = [
+      'operations' => $operations,
+      'title' => $this->t('Importing translations.'),
+      'progress_message' => '',
+      'error_message' => $this->t('Error importing translation files'),
+      'file' => drupal_get_path('module', 'locale') . '/locale.batch.inc',
+    ];
+
+    batch_set($batch);
+
   }
 
   /**
@@ -151,7 +177,30 @@ protected function getExtensionsToTranslate(): array {
       $extensions[] = $name;
     }
 
-    return $extensions;
+    return array_intersect_key(locale_translation_project_list(), array_combine($extensions, $extensions));
+  }
+
+  /**
+   * Implements callback_batch_operation().
+   *
+   * Import po files of the project for allowed languages.
+   */
+  public function importProjectPoFiles($extension, $langcodes, &$context): void {
+    $files = file_scan_directory(
+      $this->fileSystem->dirname($extension['info']['interface translation server pattern']),
+      '/.*-(' . implode('|', $langcodes) . ')\.po/'
+    );
+    foreach ($files as $file) {
+      preg_match('/(' . implode('|', $langcodes) . ')$/', $file->name, $matches);
+      $file->langcode = $matches[0];
+      Gettext::fileToDatabase($file, [
+        'overwrite_options' => [
+          'not_customized' => TRUE,
+        ],
+      ]);
+
+      $context['message'] = $this->t('Imported translation for %project (%langcode).', ['%project' => $extension['name'], '%langcode' => $file->langcode]);
+    }
   }
 
 }