ctk.rb

def collect_translation_keys
  big_string = String.new
  # File#read should be fine given that all the files are quite short.
  Dir.glob(File.join(Rails.root, 'app', '**', '*.{rb,haml}')) {|path| big_string += File.read(path)}
  big_string.scan(/_\(['"](.*)['"]\)/) do |result| 
    # Do things with each result.
  end
end