turtle_receive

while(true) do
    if(fs.exists("turtlegist")) then
        print("great, found gist")
    else
        shell.run("pastebin get RMkd2KhU turtlegist")
    end
    rednet.open("left")
    id, message  = rednet.receive()
    print("message found")
    if(message ~= nil) then
        print("found message")
        gist_command, turtle_label = message:match("([^,]+),([^,]+)")
        if(turtle_label == os.getComputerLabel()) then
            print("on correct turtle, will proceed")
            if turtle.getFuelLevel() == 0 then
                turtle.refuel()
            end
            program_name = "new_program" .. "_" .. turtle_label
            if(fs.exists(program_name)) then
                print("removing program " .. program_name )
                shell.run("rm " .. program_name)
            end
            print("downloading " .. gist_command .. " as program " .. program_name)
            shell.run("turtlegist get " .. gist_command .. " " .. program_name )
            print("running " .. program_name)
            shell.run(program_name)
            print("completed running program")
        else
            print("turtle doesn't match " .. turtle_label)
        end
    end
    os.sleep(1)
end

-- rednet.broadcast("d6a57481983b997a7035c5d828f6d6ee,stutest")

-- TODO add 2 more computers for GPS.