Streamline generators initialization flow.

railties/lib/rails/application.rb

@@ -106,13 +106,13 @@ def load_tasks
     def load_generators(app=self)
       initialize_generators
       railties.all { |r| r.load_generators(app) }
-
+      Rails::Generators.configure!(app.config.generators)
       super
       self
     end
 
     def load_console(sandbox=false)
-      initialize_console(sandbox)
+      initialize_console
       railties.all { |r| r.load_console(sandbox) }
       super()
       self
@@ -197,7 +197,7 @@ def initialize_generators
       require "rails/generators"
     end
 
-    def initialize_console(sandbox=false)
+    def initialize_console
       require "pp"
       require "rails/console/app"
       require "rails/console/helpers"

railties/lib/rails/commands.rb

@@ -15,6 +15,8 @@
 
 case command
 when 'generate', 'destroy', 'plugin'
+  require 'rails/generators'
+
   if command == 'plugin' && ARGV.first == 'new'
     require "rails/commands/plugin_new"
   else
@@ -22,7 +24,9 @@
     Rails.application.require_environment!
 
     if defined?(ENGINE_PATH) && engine = Rails::Engine.find(ENGINE_PATH)
-      Rails.application = engine
+      Rails.application.load_generators(engine)
+    else
+      Rails.application.load_generators
     end
 
     require "rails/commands/#{command}"

railties/lib/rails/commands/destroy.rb

 require 'rails/generators'
 require 'active_support/core_ext/object/inclusion'
 
-Rails::Generators.configure!
-
 if ARGV.first.in?([nil, "-h", "--help"])
   Rails::Generators.help 'destroy'
   exit

railties/lib/rails/commands/generate.rb

 require 'rails/generators'
 require 'active_support/core_ext/object/inclusion'
 
-Rails::Generators.configure!
-
 if ARGV.first.in?([nil, "-h", "--help"])
   Rails::Generators.help 'generate'
   exit

railties/lib/rails/commands/plugin_new.rb

@@ -4,7 +4,5 @@
   ARGV.shift
 end
 
-require 'rails/generators'
 require 'rails/generators/rails/plugin_new/plugin_new_generator'
-
-Rails::Generators::PluginNewGenerator.start
+Rails::Generators::PluginNewGenerator.start
\ No newline at end of file

railties/lib/rails/generators.rb

@@ -68,7 +68,7 @@ module Generators
       }
     }
 
-    def self.configure!(config = Rails.application.config.generators) #:nodoc:
+    def self.configure!(config) #:nodoc:
       no_color! unless config.colorize_logging
       aliases.deep_merge! config.aliases
       options.deep_merge! config.options
@@ -286,7 +286,6 @@ def self.invoke_fallbacks_for(name, base) #:nodoc:
       # Receives namespaces in an array and tries to find matching generators
       # in the load path.
       def self.lookup(namespaces) #:nodoc:
-        load_generators_from_railties!
         paths = namespaces_to_paths(namespaces)
 
         paths.each do |raw_path|
@@ -310,8 +309,6 @@ def self.lookup(namespaces) #:nodoc:
 
       # This will try to load any generator in the load path to show in help.
       def self.lookup! #:nodoc:
-        load_generators_from_railties!
-
         $LOAD_PATH.each do |base|
           Dir[File.join(base, "{rails/generators,generators}", "**", "*_generator.rb")].each do |path|
             begin
@@ -324,13 +321,6 @@ def self.lookup! #:nodoc:
         end
       end
 
-      # Allow generators to be loaded from custom paths.
-      def self.load_generators_from_railties! #:nodoc:
-        return if defined?(@generators_from_railties) || Rails.application.nil?
-        @generators_from_railties = true
-        Rails.application.load_generators
-      end
-
       # Convert namespaces to paths by replacing ":" for "/" and adding
       # an extra lookup. For example, "rails:model" should be searched
       # in both: "rails/model/model_generator" and "rails/model_generator".

railties/test/generators/generators_test_helper.rb

@@ -12,7 +12,7 @@ def self.root
 
 # Call configure to load the settings from
 # Rails.application.config.generators to Rails::Generators
-Rails::Generators.configure!
+Rails::Generators.configure!(Rails.application.config.generators)
 
 require 'active_record'
 require 'action_dispatch'