gistfile1.rb

  get '/views/*' do
    # Get file path.  if refers to a directory, try index.html
    path = params[:splat].first.split('/')
    path = File.join('views', *path)
    path = File.join(path, 'index.html') if File.directory?(path)
    logger.debug(path)

    # set long expiration headers  
    one_year = 360 * 24 * 60 * 60 # a little less than a year for proxy's-sake
    time = Time.now + one_year
    time = time.to_time if time.respond_to?(:to_time)
    time = time.httpdate if time.respond_to?(:httpdate)

    response['Expires'] = time
    response['Cache-Control'] = "public, max-age=#{one_year}"

    # send actual file
    send_file(path)
  end