Only check for built extensions on gem dependencies that are in vendo…

…r/gems. [#2825 state:resolved]

Signed-off-by: Yehuda Katz + Carl Lerche <ykatz+clerche@engineyard.com>

railties/lib/rails/gem_dependency.rb

@@ -122,10 +122,14 @@ def requirement
 
     def built?
       return false unless frozen?
-      specification.extensions.each do |ext|
-        makefile = File.join(unpacked_gem_directory, File.dirname(ext), 'Makefile')
-        return false unless File.exists?(makefile)
+
+      if vendor_gem?
+        specification.extensions.each do |ext|
+          makefile = File.join(unpacked_gem_directory, File.dirname(ext), 'Makefile')
+          return false unless File.exists?(makefile)
+        end
       end
+
       true
     end
 

railties/test/gem_dependency_test.rb

@@ -199,6 +199,15 @@ def test_gem_determines_build_status
     assert_equal true,  Rails::GemDependency.new("dummy-gem-i").built?
     assert_equal false, Rails::GemDependency.new("dummy-gem-j").built?
   end
+
+  def test_gem_determines_build_status_only_on_vendor_gems
+    framework_gem = Rails::GemDependency.new('dummy-framework-gem')
+    framework_gem.stubs(:framework_gem?).returns(true)  # already loaded
+    framework_gem.stubs(:vendor_rails?).returns(false)  # but not in vendor/rails
+    framework_gem.stubs(:vendor_gem?).returns(false)  # and not in vendor/gems
+    framework_gem.add_load_paths  # freeze framework gem early 
+    assert framework_gem.built?
+  end
 
   def test_gem_build_passes_options_to_dependencies
     start_gem = Rails::GemDependency.new("dummy-gem-g")