Allow rake notes to work with other directories.

Additional directories can be added using
SourceAnnotationExtractor::Annotation.register_directories("spec", "other_dir")

Result: rake notes will now extract notes from these directories.

2 files changed, 19 insertions, 0 deletions

diff --git a/railties/lib/rails/source_annotation_extractor.rb b/railties/lib/rails/source_annotation_extractor.rb
index ca195bd752..85818fafc9 100644
--- a/railties/lib/rails/source_annotation_extractor.rb
+++ b/railties/lib/rails/source_annotation_extractor.rb
@@ -18,6 +18,12 @@ class SourceAnnotationExtractor
       @@directories ||= %w(app config db lib test) + (ENV['SOURCE_ANNOTATION_DIRECTORIES'] || '').split(',')
     end
 
+    # Registers additional directories to be included
+    #  SourceAnnotationExtractor::Annotation.register_directories("spec","another")
+    def self.register_directories(*dirs)
+      directories.push(*dirs)
+    end
+
     def self.extensions
       @@extensions ||= {}
     end
diff --git a/railties/test/application/rake/notes_test.rb b/railties/test/application/rake/notes_test.rb
index 50def9beb0..71b7480f64 100644
--- a/railties/test/application/rake/notes_test.rb
+++ b/railties/test/application/rake/notes_test.rb
@@ -126,6 +126,19 @@ module ApplicationTests
         end
       end
 
+      test 'register additional directories' do
+        app_file "app/spec/spec_helper.rb", "# TODO: note in spec"
+        app_file "app/spec/models/user_spec.rb", "# TODO: note in model spec"
+        add_to_config %q{ config.annotations.register_directories("spec") }
+
+
+        run_rake_notes do |output, lines|
+          assert_match(/note in spec/, output)
+          assert_match(/note in model spec/, output)
+          assert_equal 2, lines.size
+        end
+      end
+
       private
 
       def run_rake_notes(command = 'bin/rails notes')