Handle translations using the new composer plugin.

.gitignore

@@ -4,9 +4,10 @@
 
 # Contrib files.
 /www/core
+/www/libraries
 /www/modules/contrib
 /www/themes/contrib
-/www/libraries
+/www/translations/contrib
 
 /www/autoload.php
 /www/index.php

composer.json

@@ -44,11 +44,16 @@
           "type": "zip"
         }
       }
+    },
+    "drupal-l10n": {
+      "type": "vcs",
+      "url": "https://github.com/FlorentTorregrosa/drupal-l10n"
     }
   },
   "require": {
     "composer/installers": "^1.0.21",
     "cweagans/composer-patches": "~1.0",
+    "drupal-composer/drupal-l10n": "dev-master",
     "drupal-composer/drupal-scaffold": "^2.2",
     "drupal/admin_toolbar": "1.19.0",
     "drupal/core": "8.3.2",
@@ -91,6 +96,7 @@
     "sort-packages": true
   },
   "scripts": {
+    "drupal-l10n": "DrupalComposer\\DrupalL10n\\Plugin::download",
     "drupal-scaffold": "DrupalComposer\\DrupalScaffold\\Plugin::scaffold",
     "post-create-project-cmd": [
       "bash ./scripts/init.sh"
@@ -121,6 +127,12 @@
         "sites/example.settings.local.php"
       ]
     },
+    "drupal-l10n": {
+      "destination": "translations/contrib",
+      "languages": [
+        "fr"
+      ]
+    },
     "patches": {
       "drupal/redis": {
         "Add status page and some statistics": "https://www.drupal.org/files/issues/redis-statistics-7.patch"

www/sites/default/settings.php

@@ -21,6 +21,10 @@
 
 $settings['container_yamls'][] = __DIR__ . '/services.yml';
 
+// Translations.
+$config['locale.settings']['translation']['path'] = 'translations/contrib';
+$config['locale.settings']['translation']['use_source'] = 'local';
+
 // TODO: Remove this line when it will no more be added when installing with
 // Drush.
 $settings['install_profile'] = 'standard';