gistfile1.rb

module IRB
  # Simple hack, showing the evaluated object
  # (we don't want to send the whole object through
  # our socket)
  class Evaluation
    def initialize(evaluation)
      @eval = evaluation
    end

    def inspect
      @eval
    end
  end

  class WorkSpace
    def evaluate(context, statements, file = __FILE__, line = __LINE__)
      unless @@remote_ip # Local evaluation
        return eval(statements, @binding, file, line)
      else # Remote evaluation
        unless @socket # Create a socket if needed
          @socket = TCPSocket.new(@@remote_ip, 9000)
        end
        
        begin
          @socket.puts statements
          @socket.puts "\001EVAL\001" # Ending message (invalid ruby code ;)
        rescue
          @@remote_ip = nil
          return IRB::Evaluation.new("Disconnected from server")
        end

        evaluation = ""
        loop do
          line = @socket.gets
          if line == "\001DONE\001\n"
            return IRB::Evaluation.new(evaluation.chomp)
          else
            evaluation << line
          end
        end
      end
    end

    def self.remote_ip=(val)
      @@remote_ip = val
    end
   
    @@remote_ip = nil
  end
end

irb_serv.rb

require 'socket'
require 'joyau'

Joyau.init(:gfx, :lib, :wlan)
Joyau::Wlan.connect(2, 60)

Joyau::Debug.init

Joyau::Debug.puts "Starting server"
server = TCPServer.new("0.0.0.0", 9000)
Joyau::Debug.puts "Started server at #{Joyau::Wlan.ip}"
Joyau::Debug.puts "Waiting for client."

socket = server.accept
Joyau::Debug.puts "Client found!"

def clear_bind
  binding
end

bind = clear_bind

command = ""
loop do
  line = socket.gets
  next unless line

  if line == "\001EVAL\001\n"
    begin
      socket.puts(eval(command, bind).inspect + "\n\001DONE\001")
    rescue Exception
      socket.puts("#{$!.class}: #{$!.message}\n\001DONE\001")
    end
    command = ""
  else
    command << line
  end
end

Joyau::Wlan.disconnect
Joyau.stop