- Patch #642782 by plach, Dave Reid, greggles, mfb: hook_language_init() is a...

- Patch #642782 by plach, Dave Reid, greggles, mfb: hook_language_init() is a bootstrap hook and needs bootstrap_invoke_all().

includes/bootstrap.inc

@@ -859,10 +859,10 @@ function drupal_page_is_cacheable($allow_caching = NULL) {
 }
 
 /**
- * Call all init or exit hooks without including all modules.
+ * Invoke a bootstrap hook in all bootstrap modules that implement it.
  *
  * @param $hook
- *   The name of the bootstrap hook we wish to invoke.
+ *   The name of the bootstrap hook to invoke.
  */
 function bootstrap_invoke_all($hook) {
   // _drupal_bootstrap_page_cache() already loaded the bootstrap modules, so we
@@ -1163,7 +1163,7 @@ function drupal_serve_page_from_cache(stdClass $cache) {
  * Define the critical hooks that force modules to always be loaded.
  */
 function bootstrap_hooks() {
-  return array('boot', 'exit', 'watchdog');
+  return array('boot', 'exit', 'watchdog', 'language_init');
 }
 
 /**
@@ -2086,7 +2086,7 @@ function drupal_language_initialize() {
     }
     // Allow modules to react on language system initialization in multilingual
     // environments.
-    module_invoke_all('language_init', $types);
+    bootstrap_invoke_all('language_init');
   }
 }
 

modules/locale/locale.api.php

@@ -24,6 +24,33 @@ function hook_locale($op = 'groups') {
   }
 }
 
+/**
+ * Allows modules to act after language initialization has been performed.
+ *
+ * This is primarily needed to provide translation for configuration variables
+ * in the proper bootstrap phase. Variables are user-defined strings and
+ * therefore should not be translated via t(), since the source string can
+ * change without notice and any previous translation would be lost. Moreover,
+ * since variables can be used in the bootstrap phase, we need a bootstrap hook
+ * to provide a translation early enough to avoid misalignments between code
+ * using the original values and code using the translated values. However
+ * modules implementing hook_boot() should be aware that language initialization
+ * did not happen yet and thus they cannot rely on translated variables.
+ */
+function hook_language_init() {
+  global $language, $conf;
+
+  switch ($language->language) {
+    case 'it':
+      $conf['site_name'] = 'Il mio sito Drupal';
+      break;
+
+    case 'fr':
+      $conf['site_name'] = 'Mon site Drupal';
+      break;
+  }
+}
+
 /**
  * Perform alterations on language switcher links.
  *