Issue #2474537 by Noe_, tstoeckler, michaellenahan, cilefen: Installing in a...

Issue #2474537 by Noe_, tstoeckler, michaellenahan, cilefen: Installing in a non-English language fails for command-line installations (Drush, ...)

core/includes/install.inc

@@ -1045,7 +1045,7 @@ function drupal_check_module($module) {
 function install_profile_info($profile, $langcode = 'en') {
   $cache = &drupal_static(__FUNCTION__, array());
 
-  if (!isset($cache[$profile])) {
+  if (!isset($cache[$profile][$langcode])) {
     // Set defaults for module info.
     $defaults = array(
       'dependencies' => array(),
@@ -1067,9 +1067,9 @@ function install_profile_info($profile, $langcode = 'en') {
 
     $info['dependencies'] = array_unique(array_merge($required, $info['dependencies'], $locale));
 
-    $cache[$profile] = $info;
+    $cache[$profile][$langcode] = $info;
   }
-  return $cache[$profile];
+  return $cache[$profile][$langcode];
 }
 
 /**

core/modules/system/src/Tests/Installer/InstallerLanguageTest.php

@@ -42,4 +42,22 @@ function testInstallerTranslationFiles() {
     }
   }
 
+  /**
+   * Tests profile info caching in non-English languages.
+   */
+  function testInstallerTranslationCache() {
+    require_once 'core/includes/install.inc';
+
+    // Prime the drupal_get_filename() static cache with the location of the
+    // testing profile as it is not the currently active profile and we don't
+    // yet have any cached way to retrieve its location.
+    // @todo Remove as part of https://www.drupal.org/node/2186491
+    drupal_get_filename('profile', 'testing', 'core/profiles/testing/testing.info.yml');
+
+    $info_en = install_profile_info('testing', 'en');
+    $info_nl = install_profile_info('testing', 'nl');
+
+    $this->assertFalse(in_array('locale', $info_en['dependencies']), 'Locale is not set when installing in English.');
+    $this->assertTrue(in_array('locale', $info_nl['dependencies']), 'Locale is set when installing in Dutch.');
+  }
 }