files in the lib directory are no longer autoloaded

Conceptually, the lib directory is closer 3rd party libraries
than to the application itself. Thus, Rails adds it to Ruby's
load path ($LOAD_PATH, $:) but it is no longer included in
dependencies' load paths.

To enable autoloading back put this in your config/application.rb

  config.load_paths += %W( #{config.root}/lib )

2 files changed, 8 insertions, 2 deletions

diff --git a/railties/lib/rails/engine/configuration.rb b/railties/lib/rails/engine/configuration.rb
index 446fe0bda9..620a723a04 100644
--- a/railties/lib/rails/engine/configuration.rb
+++ b/railties/lib/rails/engine/configuration.rb
@@ -20,15 +20,19 @@ module Rails
           paths.app.models          "app/models",          :eager_load => true
           paths.app.mailers         "app/mailers",         :eager_load => true
           paths.app.views           "app/views"
-          paths.lib                 "lib",                 :load_path => true
+
+          paths.lib                 "lib"
           paths.lib.tasks           "lib/tasks",           :glob => "**/*.rake"
+
           paths.config              "config"
           paths.config.initializers "config/initializers", :glob => "**/*.rb"
           paths.config.locales      "config/locales",      :glob => "*.{rb,yml}"
           paths.config.routes       "config/routes.rb"
+
           paths.public              "public"
           paths.public.javascripts  "public/javascripts"
           paths.public.stylesheets  "public/stylesheets"
+
           paths
         end
       end
diff --git a/railties/test/application/initializers/load_path_test.rb b/railties/test/application/initializers/load_path_test.rb
index 714d62311d..d9aac8719c 100644
--- a/railties/test/application/initializers/load_path_test.rb
+++ b/railties/test/application/initializers/load_path_test.rb
@@ -19,7 +19,7 @@ module ApplicationTests
       assert $:.include?("#{app_path}/app/models")
     end
 
-    test "initializing an application allows to load code on lib path inside application class definitation" do
+    test "initializing an application allows to load code on lib path inside application class definition" do
       app_file "lib/foo.rb", <<-RUBY
         module Foo; end
       RUBY
@@ -60,6 +60,8 @@ module ApplicationTests
 
       add_to_config <<-RUBY
         config.root = "#{app_path}"
+        config.cache_classes = true
+        config.load_paths << "#{app_path}/lib"
         config.eager_load_paths << "#{app_path}/lib"
       RUBY