just a quick hack

spork.rb

#!/usr/bin/env ruby

CUCUMBER_PORT = 8990
RSPEC_PORT    = 8989

def running?(port)
  `netstat -an` =~ /\b#{port}\b/m
end

START_CUCUMBER = "spork cuc -p #{CUCUMBER_PORT}"
START_RSPEC    = "spork -p #{RSPEC_PORT}"

def start
  @rspec = false
  @cucumber = false
  system "screen -AmdS spork-cucumber #{START_CUCUMBER}"
  system "screen -AmdS spork-rspec    #{START_RSPEC}"
  print "Starting Spork for Cucumber and RSpec "
  until @rspec && @cucumber
    print '.'
    @rspec = true if running?(RSPEC_PORT)
    @cucumber = true if running?(CUCUMBER_PORT)
    sleep 0.2
  end
  puts " OK!"
end

def stop
  processes = `ps aux`.split("\n")
  [ START_CUCUMBER, START_RSPEC ].each do |type|
    p = processes.find { |pr| pr =~ /#{type}$/ }
    p =~ /(\d+)/
    if $1
      puts "Killing #{$1}"
      system "kill #{$1}"
    end
  end
end

case ARGV[-1]
when "start"
  start
when "stop"
  stop
when "restart"
  stop
  start
else
  puts "Possible options: start, stop, restart"
end