# File lib/gherkin/tools/files.rb, line 14
      def each(&proc)
        globs = @paths.map do |path|
          raise "#{path} does not exist" unless File.exist?(path)
          File.directory?(path) ? File.join(path, '**', '*.feature') : path
        end

        Dir[*globs].uniq.sort.each(&proc)
      end