Revert "Allow loading external route files from the router"

This reverts commit 6acebb3.

Usage of this feature did not reveal any improvement in existing apps.

Conflicts:

	actionpack/lib/action_dispatch/routing/mapper.rb
	guides/source/routing.textile
	railties/lib/rails/engine.rb
	railties/lib/rails/paths.rb
	railties/test/paths_test.rb

@@ -1316,22 +1316,6 @@ def shallow?
           parent_resource.instance_of?(Resource) && @scope[:shallow]
         end
 
-        def draw(name)
-          path = @draw_paths.find do |_path|
-            File.exists? "#{_path}/#{name}.rb"
-          end
-
-          unless path
-            msg  = "Your router tried to #draw the external file #{name}.rb,\n" \
-                   "but the file was not found in:\n\n"
-            msg += @draw_paths.map { |_path| " * #{_path}" }.join("\n")
-            raise ArgumentError, msg
-          end
-
-          route_path = "#{path}/#{name}.rb"
-          instance_eval(File.read(route_path), route_path.to_s)
-        end
-
         # match 'path' => 'controller#action'
         # match 'path', to: 'controller#action'
         # match 'path', 'otherpath', on: :member, via: :get
@@ -1581,7 +1565,6 @@ def name_for_action(as, action) #:nodoc:
 
       def initialize(set) #:nodoc:
         @set = set
-        @draw_paths = set.draw_paths
         @scope = { :path_names => @set.resources_path_names }
       end
 

@@ -237,7 +237,6 @@ def optimized_helper(route)
       attr_accessor :formatter, :set, :named_routes, :default_scope, :router
       attr_accessor :disable_clear_and_finalize, :resources_path_names
       attr_accessor :default_url_options, :request_class, :valid_conditions
-      attr_accessor :draw_paths
 
       alias :routes :set
 
@@ -249,7 +248,6 @@ def initialize(request_class = ActionDispatch::Request)
         self.named_routes = NamedRouteCollection.new
         self.resources_path_names = self.class.default_resources_path_names.dup
         self.default_url_options = {}
-        self.draw_paths = []
 
         self.request_class = request_class
         @valid_conditions = { :controller => true, :action => true }

@@ -845,24 +845,6 @@ end
 
 This will create routing helpers such as +magazine_periodical_ads_url+ and +edit_magazine_periodical_ad_path+.
 
-h3. Breaking Up a Large Route File
-
-If you have a large route file that you would like to break up into multiple files, you can use the +#draw+ method in your router:
-
-<ruby>
-draw :admin
-</ruby>
-
-Then, create a file called +config/routes/admin.rb+. Name the file the same as the symbol passed to the +draw+ method. You can then use the normal routing DSL inside that file:
-
-<ruby>
-# in config/routes/admin.rb
-
-namespace :admin do
-  resources :posts
-end
-</ruby>
-
 h3. Inspecting and Testing Routes
 
 Rails offers facilities for inspecting and testing your routes.

@@ -3,13 +3,12 @@
 module Rails
   class Application
     class RoutesReloader
-      attr_reader :route_sets, :paths, :external_routes
+      attr_reader :route_sets, :paths
       delegate :execute_if_updated, :execute, :updated?, :to => :updater
 
       def initialize
-        @paths           = []
-        @route_sets      = []
-        @external_routes = []
+        @paths      = []
+        @route_sets = []
       end
 
       def reload!
@@ -24,11 +23,7 @@ def reload!
 
       def updater
         @updater ||= begin
-          dirs = @external_routes.each_with_object({}) do |dir, hash|
-            hash[dir.to_s] = %w(rb)
-          end
-
-          updater = ActiveSupport::FileUpdateChecker.new(paths, dirs) { reload! }
+          updater = ActiveSupport::FileUpdateChecker.new(paths) { reload! }
           updater.execute
           updater
         end

@@ -508,10 +508,7 @@ def env_config
     # Defines the routes for this engine. If a block is given to
     # routes, it is appended to the engine.
     def routes
-      @routes ||= ActionDispatch::Routing::RouteSet.new.tap do |routes|
-        routes.draw_paths.concat paths["config/routes"].paths
-      end
-
+      @routes ||= ActionDispatch::Routing::RouteSet.new
       @routes.append(&Proc.new) if block_given?
       @routes
     end
@@ -555,12 +552,10 @@ def load_seed
 
     initializer :add_routing_paths do |app|
       paths = self.paths["config/routes.rb"].existent
-      external_paths = self.paths["config/routes"].paths
 
       if routes? || paths.any?
         app.routes_reloader.paths.unshift(*paths)
         app.routes_reloader.route_sets << routes
-        app.routes_reloader.external_routes.unshift(*external_paths)
       end
     end
 

@@ -53,7 +53,6 @@ def paths
           paths.add "config/initializers", :glob => "**/*.rb"
           paths.add "config/locales",      :glob => "*.{rb,yml}"
           paths.add "config/routes.rb"
-          paths.add "config/routes",       :glob => "**/*.rb"
           paths.add "db"
           paths.add "db/migrate"
           paths.add "db/seeds.rb"

@@ -114,7 +114,7 @@ def filter_by(constraint)
     class Path
       include Enumerable
 
-      attr_reader :path, :root
+      attr_reader :path
       attr_accessor :glob
 
       def initialize(root, current, paths, options = {})
@@ -180,14 +180,6 @@ def to_ary
         @paths
       end
 
-      def paths
-        raise "You need to set a path root" unless @root.path
-
-        map do |p|
-          File.join @root.path, p
-        end
-      end
-
       # Expands all paths against the root and return all unique values.
       def expanded
         raise "You need to set a path root" unless @root.path

@@ -50,8 +50,6 @@ def assert_not_in_load_path(*path)
       assert_path @paths["config/locales"],      "config/locales/en.yml"
       assert_path @paths["config/environment"],  "config/environment.rb"
       assert_path @paths["config/environments"], "config/environments/development.rb"
-      assert_path @paths["config/routes.rb"],    "config/routes.rb"
-      assert_path @paths["config/routes"],       "config/routes"
 
       assert_equal root("app", "controllers"), @paths["app/controllers"].expanded.first
     end

@@ -178,90 +178,7 @@ def index
       assert_equal 'WIN', last_response.body
     end
 
-    test "routes drawing from config/routes" do
-      app_file 'config/routes.rb', <<-RUBY
-        AppTemplate::Application.routes.draw do
-          draw :external
-        end
-      RUBY
-
-      app_file 'config/routes/external.rb', <<-RUBY
-        get ':controller/:action'
-      RUBY
-
-      controller :success, <<-RUBY
-        class SuccessController < ActionController::Base
-          def index
-            render :text => "success!"
-          end
-        end
-      RUBY
-
-      app 'development'
-      get '/success/index'
-      assert_equal 'success!', last_response.body
-    end
-
     {"development" => "baz", "production" => "bar"}.each do |mode, expected|
-      test "reloads routes when external configuration is changed in #{mode}" do
-        controller :foo, <<-RUBY
-          class FooController < ApplicationController
-            def bar
-              render :text => "bar"
-            end
-
-            def baz
-              render :text => "baz"
-            end
-          end
-        RUBY
-
-        app_file 'config/routes.rb', <<-RUBY
-          AppTemplate::Application.routes.draw do
-            draw :external
-          end
-        RUBY
-
-        app_file 'config/routes/external.rb', <<-RUBY
-          get 'foo', :to => 'foo#bar'
-        RUBY
-
-        app(mode)
-
-        get '/foo'
-        assert_equal 'bar', last_response.body
-
-        app_file 'config/routes/external.rb', <<-RUBY
-          get 'foo', :to => 'foo#baz'
-        RUBY
-
-        sleep 0.1
-
-        get '/foo'
-        assert_equal expected, last_response.body
-
-        app_file 'config/routes.rb', <<-RUBY
-          AppTemplate::Application.routes.draw do
-            draw :external
-            draw :other_external
-          end
-        RUBY
-
-        app_file 'config/routes/other_external.rb', <<-RUBY
-          get 'win', :to => 'foo#baz'
-        RUBY
-
-        sleep 0.1
-
-        get '/win'
-
-        if mode == "development"
-          assert_equal expected, last_response.body
-        else
-          assert_equal 404, last_response.status
-        end
-      end
-
       test "reloads routes when configuration is changed in #{mode}" do
         controller :foo, <<-RUBY
           class FooController < ApplicationController

@@ -29,7 +29,6 @@ def setup
   test "creating a root level path" do
     @root.add "app"
     assert_equal ["/foo/bar/app"], @root["app"].to_a
-    assert_equal ["/foo/bar/app"], @root["app"].paths
   end
 
   test "creating a root level path with options" do
@@ -192,7 +191,6 @@ def setup
     @root["app"] = "/app"
     @root["app"].glob = "*.rb"
     assert_equal "*.rb", @root["app"].glob
-    assert_equal ["/foo/bar/app"], @root["app"].paths
   end
 
   test "it should be possible to override a path's default glob without assignment" do