From 98b84b7adbf2dfee104167e4014ecd03fb965fff Mon Sep 17 00:00:00 2001
From: Dries Buytaert <dries@buytaert.net>
Date: Mon, 28 Dec 2009 10:48:51 +0000
Subject: - Patch #661420 by justinrandell, David_Rothstein: made installation
 of modules much more efficient.

---
 includes/bootstrap.inc | 16 +++++++++++++++-
 includes/module.inc    |  8 ++++----
 includes/registry.inc  |  9 +++++----
 3 files changed, 24 insertions(+), 9 deletions(-)

(limited to 'includes')

diff --git a/includes/bootstrap.inc b/includes/bootstrap.inc
index 29b925350..b9bf2d6d0 100644
--- a/includes/bootstrap.inc
+++ b/includes/bootstrap.inc
@@ -2098,8 +2098,22 @@ function _registry_check_code($type, $name = NULL) {
  * each interface or class in the database.
  */
 function registry_rebuild() {
+  system_rebuild_module_data();
+  registry_update();
+}
+
+/**
+ * Update the registry based on the latest files listed in the database.
+ *
+ * This function should be used when system_rebuild_module_data() does not need
+ * to be called, because it is already known that the list of files in the
+ * {system} table matches those in the file system.
+ *
+ * @see registry_rebuild()
+ */
+function registry_update() {
   require_once DRUPAL_ROOT . '/includes/registry.inc';
-  _registry_rebuild();
+  _registry_update();
 }
 
 /**
diff --git a/includes/module.inc b/includes/module.inc
index ba44dc46e..e3f31a009 100644
--- a/includes/module.inc
+++ b/includes/module.inc
@@ -319,8 +319,8 @@ function module_enable($module_list, $disable_modules_installed_hook = FALSE) {
     system_list_reset();
     module_list(TRUE);
     module_implements('', FALSE, TRUE);
-    // Force to regenerate the stored list of hook implementations.
-    registry_rebuild();
+    // Update the registry to include the new enabled module.
+    registry_update();
     // Refresh the schema to include the new enabled module.
     drupal_get_schema(NULL, TRUE);
 
@@ -383,8 +383,8 @@ function module_disable($module_list) {
     // Invoke hook_modules_disabled before disabling modules,
     // so we can still call module hooks to get information.
     module_invoke_all('modules_disabled', $invoke_modules);
-    // Force to regenerate the stored list of hook implementations.
-    registry_rebuild();
+    // Update the registry to remove the newly-disabled module.
+    registry_update();
   }
 
   // If there remains no more node_access module, rebuilding will be
diff --git a/includes/registry.inc b/includes/registry.inc
index be7154851..16b869b76 100644
--- a/includes/registry.inc
+++ b/includes/registry.inc
@@ -17,9 +17,9 @@
  */
 
 /**
- * @see registry_rebuild.
+ * @see registry_update().
  */
-function _registry_rebuild() {
+function _registry_update() {
 
   // The registry serves as a central autoloader for all classes, including
   // the database query builders. However, the registry rebuild process
@@ -35,11 +35,12 @@ function _registry_rebuild() {
   require_once DRUPAL_ROOT . '/includes/database/' . $driver . '/query.inc';
 
   // Get current list of modules and their files.
-  $modules = system_rebuild_module_data();
+  $modules = db_query("SELECT * FROM {system} WHERE type = 'module'")->fetchAll();
   // Get the list of files we are going to parse.
   $files = array();
   foreach ($modules as &$module) {
-    $dir = dirname($module->uri);
+    $module->info = unserialize($module->info);
+    $dir = dirname($module->filename);
 
     // Store the module directory for use in hook_registry_files_alter().
     $module->dir = $dir;
-- 
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