6 files changed, 44 insertions, 10 deletions
diff --git a/railties/lib/generators/rails/app/app_generator.rb b/railties/lib/generators/rails/app/app_generator.rb
index 92e0d37436..1e1acc1141 100644
--- a/railties/lib/generators/rails/app/app_generator.rb
+++ b/railties/lib/generators/rails/app/app_generator.rb
@@ -178,7 +178,8 @@ module Rails::Generators
     end
 
     def bundle_if_dev_or_edge
-      run "bundle install" if dev_or_edge?
+      bundle_command = File.basename(Thor::Util.ruby_command).sub(/ruby/, 'bundle')
+      run "#{bundle_command} install" if dev_or_edge?
     end
 
     protected
@@ -220,6 +221,8 @@ module Rails::Generators
           raise Error, "Invalid application name #{app_name}. Please give a name which does not start with numbers."
         elsif RESERVED_NAMES.include?(app_name)
           raise Error, "Invalid application name #{app_name}. Please give a name which does not match one of the reserved rails words."
+        elsif Object.const_defined?(app_const_base)
+          raise Error, "Invalid application name #{app_name}, constant #{app_const_base} is already in use. Please choose another application name."
         end
       end
 
diff --git a/railties/lib/generators/rails/app/templates/script/rails b/railties/lib/generators/rails/app/templates/script/rails
index 199fe1a6d3..b01d1ee183 100644
--- a/railties/lib/generators/rails/app/templates/script/rails
+++ b/railties/lib/generators/rails/app/templates/script/rails
@@ -1,5 +1,8 @@
 # This command will automatically be run when you run "rails" with Rails 3 gems installed from the root of your application.
 
-ENV_PATH = File.expand_path('../../config/environment',  __FILE__)
-require File.expand_path('../../config/boot',  __FILE__)
+ENV_PATH  = File.expand_path('../../config/environment',  __FILE__)
+BOOT_PATH = File.expand_path('../../config/boot',  __FILE__)
+APP_PATH  = File.expand_path('../../config/application',  __FILE__)
+
+require BOOT_PATH
 require 'rails/commands'
diff --git a/railties/lib/rails/commands.rb b/railties/lib/rails/commands.rb
index d4558be00f..12748da18b 100644
--- a/railties/lib/rails/commands.rb
+++ b/railties/lib/rails/commands.rb
@@ -34,13 +34,15 @@ when 'c', 'console'
   Rails::Console.start(Rails::Application)
 when 's', 'server'
   require 'rails/commands/server'
+  # Initialize the server first, so environment options are set
   server = Rails::Server.new
-  require ENV_PATH
+  require APP_PATH
+
   Dir.chdir(Rails::Application.root)
   server.start
 when 'db', 'dbconsole'
   require 'rails/commands/dbconsole'
-  require ENV_PATH
+  require APP_PATH
   Rails::DBConsole.start(Rails::Application)
 
 when 'application'
@@ -55,7 +57,7 @@ when 'profiler'
   require ENV_PATH
   require 'rails/commands/performance/profiler'
 when 'plugin'
-  require ENV_PATH
+  require APP_PATH
   require 'rails/commands/plugin'
 when 'runner'
   require 'rails/commands/runner'
diff --git a/railties/lib/rails/generators.rb b/railties/lib/rails/generators.rb
index 3c902ce0d4..9a51171cf5 100644
--- a/railties/lib/rails/generators.rb
+++ b/railties/lib/rails/generators.rb
@@ -202,6 +202,10 @@ module Rails
       rails.delete("app")
       print_list("rails", rails)
 
+      groups.delete("active_record") if options[:rails][:orm] == :active_record
+      groups.delete("test_unit")     if options[:rails][:test_framework] == :test_unit
+      groups.delete("erb")           if options[:rails][:template_engine] == :erb
+
       groups.sort.each { |b, n| print_list(b, n) }
     end
 
diff --git a/railties/test/generators/app_generator_test.rb b/railties/test/generators/app_generator_test.rb
index 412034029e..4fc26563ff 100644
--- a/railties/test/generators/app_generator_test.rb
+++ b/railties/test/generators/app_generator_test.rb
@@ -9,6 +9,7 @@ class AppGeneratorTest < Rails::Generators::TestCase
   def setup
     super
     Rails::Generators::AppGenerator.instance_variable_set('@desc', nil)
+    @bundle_command = File.basename(Thor::Util.ruby_command).sub(/ruby/, 'bundle')
   end
 
   def teardown
@@ -65,6 +66,13 @@ class AppGeneratorTest < Rails::Generators::TestCase
     assert_equal "Invalid application name 43-things. Please give a name which does not start with numbers.\n", content
   end
 
+  def test_application_name_raises_an_error_if_name_already_used_constant
+    %w{ String Hash Class Module Set Symbol }.each do |ruby_class|
+      content = capture(:stderr){ run_generator [File.join(destination_root, ruby_class)] }
+      assert_equal "Invalid application name #{ruby_class}, constant #{ruby_class} is already in use. Please choose another application name.\n", content
+    end
+  end
+
   def test_invalid_application_name_is_fixed
     run_generator [File.join(destination_root, "things-43")]
     assert_file "things-43/config/environment.rb", /Things43::Application\.initialize!/
@@ -161,14 +169,14 @@ class AppGeneratorTest < Rails::Generators::TestCase
   end
 
   def test_dev_option
-    generator([destination_root], :dev => true).expects(:run).with("bundle install")
+    generator([destination_root], :dev => true).expects(:run).with("#{@bundle_command} install")
     silence(:stdout){ generator.invoke }
     rails_path = File.expand_path('../../..', Rails.root)
     assert_file 'Gemfile', /^gem\s+["']rails["'],\s+:path\s+=>\s+["']#{Regexp.escape(rails_path)}["']$/
   end
 
   def test_edge_option
-    generator([destination_root], :edge => true).expects(:run).with("bundle install")
+    generator([destination_root], :edge => true).expects(:run).with("#{@bundle_command} install")
     silence(:stdout){ generator.invoke }
     assert_file 'Gemfile', /^gem\s+["']rails["'],\s+:git\s+=>\s+["']#{Regexp.escape("git://github.com/rails/rails.git")}["']$/
   end
diff --git a/railties/test/generators_test.rb b/railties/test/generators_test.rb
index dd17f8f756..2975e3e3ef 100644
--- a/railties/test/generators_test.rb
+++ b/railties/test/generators_test.rb
@@ -104,11 +104,25 @@ class GeneratorsTest < Rails::Generators::TestCase
 
   def test_rails_generators_with_others_information
     output = capture(:stdout){ Rails::Generators.help }
-    assert_match /ActiveRecord:/, output
     assert_match /Fixjour:/, output
+    assert_match /^  fixjour$/, output
+  end
+
+  def test_rails_generators_does_not_show_activerecord_info_if_its_the_default
+    output = capture(:stdout){ Rails::Generators.help }
+    assert_no_match /ActiveRecord:/, output
+    assert_no_match /^  active_record:model$/, output
+    assert_no_match /^  active_record:fixjour$/, output
+  end
+
+  def test_rails_generators_shows_activerecord_info_if_its_not_the_default
+    Rails::Generators.options[:rails][:orm] = :data_mapper
+    output = capture(:stdout){ Rails::Generators.help }
+    assert_match /ActiveRecord:/, output
     assert_match /^  active_record:model$/, output
     assert_match /^  active_record:fixjour$/, output
-    assert_match /^  fixjour$/, output
+  ensure
+    Rails::Generators.options[:rails][:orm] = :active_record
   end
 
   def test_no_color_sets_proper_shell