4 files changed, 40 insertions, 32 deletions
diff --git a/railties/lib/initializer.rb b/railties/lib/initializer.rb
index b0abf3379c..8e8bcf21fe 100644
--- a/railties/lib/initializer.rb
+++ b/railties/lib/initializer.rb
@@ -48,12 +48,8 @@ module Rails
       end
     end
 
-    def root
-      if defined?(RAILS_ROOT)
-        RAILS_ROOT
-      else
-        nil
-      end
+    def root(*args)
+      File.join(RAILS_ROOT, *args.compact) if defined?(RAILS_ROOT)
     end
 
     def env
@@ -372,9 +368,10 @@ Run `rake gems:install` to install the missing gems.
 
     def load_view_paths
       if configuration.frameworks.include?(:action_view)
-        ActionView::PathSet::Path.eager_load_templates! if configuration.cache_classes
-        ActionController::Base.view_paths.load if configuration.frameworks.include?(:action_controller)
-        ActionMailer::Base.template_root.load if configuration.frameworks.include?(:action_mailer)
+        if configuration.cache_classes
+          ActionController::Base.view_paths.load if configuration.frameworks.include?(:action_controller)
+          ActionMailer::Base.template_root.load if configuration.frameworks.include?(:action_mailer)
+        end
       end
     end
 
@@ -487,12 +484,8 @@ Run `rake gems:install` to install the missing gems.
     def initialize_routing
       return unless configuration.frameworks.include?(:action_controller)
 
-      ActionController::Routing.controller_paths = configuration.controller_paths + plugin_loader.controller_paths
-
-      ([ configuration.routes_configuration_file ] + plugin_loader.routing_files).each do |routing_file|
-        ActionController::Routing::Routes.add_configuration_file(routing_file)
-      end
-
+      ActionController::Routing.controller_paths += configuration.controller_paths
+      ActionController::Routing::Routes.add_configuration_file(configuration.routes_configuration_file)
       ActionController::Routing::Routes.reload
     end
 
diff --git a/railties/lib/rails/backtrace_cleaner.rb b/railties/lib/rails/backtrace_cleaner.rb
index 82537d962f..d8626aaf14 100644
--- a/railties/lib/rails/backtrace_cleaner.rb
+++ b/railties/lib/rails/backtrace_cleaner.rb
@@ -3,11 +3,11 @@ module Rails
     ERB_METHOD_SIG = /:in `_run_erb_.*/
 
     VENDOR_DIRS  = %w( vendor/plugins vendor/gems vendor/rails )
-    MONGREL_DIRS = %w( lib/mongrel bin/mongrel )
+    SERVER_DIRS  = %w( lib/mongrel bin/mongrel lib/rack )
     RAILS_NOISE  = %w( script/server )
     RUBY_NOISE   = %w( rubygems/custom_require benchmark.rb )
 
-    ALL_NOISE    = VENDOR_DIRS + MONGREL_DIRS + RAILS_NOISE + RUBY_NOISE
+    ALL_NOISE    = VENDOR_DIRS + SERVER_DIRS + RAILS_NOISE + RUBY_NOISE
 
     def initialize
       super
diff --git a/railties/lib/rails/plugin.rb b/railties/lib/rails/plugin.rb
index 2b1e877e2b..4901abe808 100644
--- a/railties/lib/rails/plugin.rb
+++ b/railties/lib/rails/plugin.rb
@@ -71,6 +71,11 @@ module Rails
       File.exist?(routing_file)
     end
 
+
+    def view_path
+      File.join(directory, 'app', 'views')
+    end
+
     def controller_path
       File.join(directory, 'app', 'controllers')
     end
@@ -95,11 +100,7 @@ module Rails
 
       
       def app_paths
-        [ 
-          File.join(directory, 'app', 'models'), 
-          File.join(directory, 'app', 'controllers'),
-          File.join(directory, 'app', 'helpers')
-        ]
+        [ File.join(directory, 'app', 'models'), File.join(directory, 'app', 'helpers'), controller_path ]
       end
       
       def lib_path
diff --git a/railties/lib/rails/plugin/loader.rb b/railties/lib/rails/plugin/loader.rb
index f08d9b74e2..be81bdf4fa 100644
--- a/railties/lib/rails/plugin/loader.rb
+++ b/railties/lib/rails/plugin/loader.rb
@@ -39,6 +39,8 @@ module Rails
           register_plugin_as_loaded(plugin)
         end
 
+        configure_engines
+
         ensure_all_registered_plugins_are_loaded!
       end
       
@@ -63,19 +65,31 @@ module Rails
         $LOAD_PATH.uniq!
       end
       
-      # Returns an array of all the controller paths found inside engine-type plugins.
-      def controller_paths
-        engines.collect(&:controller_path)
-      end
-      
-      # Returns an array of routing.rb files from all the plugins that include config/routes.rb
-      def routing_files
-        plugins.select(&:routed?).collect(&:routing_file)
-      end
-      
       
       protected
+        def configure_engines
+          if engines.any?
+            add_engine_routing_configurations
+            add_engine_controller_paths
+            add_engine_view_paths
+          end
+        end
       
+        def add_engine_routing_configurations
+          engines.select(&:routed?).collect(&:routing_file).each do |routing_file|
+            ActionController::Routing::Routes.add_configuration_file(routing_file)
+          end
+        end
+        
+        def add_engine_controller_paths
+          ActionController::Routing.controller_paths += engines.collect(&:controller_path)
+        end
+        
+        def add_engine_view_paths
+          # reverse it such that the last engine can overwrite view paths from the first, like with routes
+          ActionController::Base.view_paths += ActionView::PathSet.new(engines.collect(&:view_path).reverse)
+        end
+
         # The locate_plugins method uses each class in config.plugin_locators to
         # find the set of all plugins available to this Rails application.
         def locate_plugins