Unit test tagging

namespace :unittest do
  task *[:tag, (0..100).map {|i| "t#{i}".to_sym }].flatten do |t, args|

    args.each do |key, value|

      Dir[File.join(RAILS_ROOT, 'test', 'unit', '*.rb')].each do |file|

        File.open(file,'r') do |fh|
          tags = fh.grep(/\~(\S+)/).map do |t| 
            t.strip!
            t.split(/\s+/)
          end

          @tagged_file_cache ||= {}
          [tags].flatten.each do |tag|

            next if tag == "#"
            tagged = tag[/\~(\S+)$/,1] 
            if value == tagged
              tag = tagged && tagged.to_sym
              @tagged_file_cache[tag] ||= []
              @tagged_file_cache[tag] << file unless @tagged_file_cache[tag].include?(file)
            end
          end
        end
      end

    end

  @tagged_file_cache.each do |symb, files|
    files.each do |file|
      system "ruby #{file}"
    end
  end

  end 
end