Miner Turtle Updater

local args = {...}
local sides = rs.getSides()
local updateFromShell = args[1]
local turtleType = args[2]

local turtle_channel = "coms_turtles_" .. turtleType

for i = 1, #sides do
    side = sides[i]
    if peripheral.isPresent(side) and peripheral.getType(side) == "modem" then
        rednet.open(side)
        break
    end
end

if updateFromShell == "true" then
    rednet.receive(turtle_channel)
end

rednet.broadcast("UPDATE_READY", turtle_channel)
id, msg = rednet.receive("coms_turtles_payload", 15)

print("Received msg: " .. msg)

if not msg then
    print("Failed to receieve an updated program packet!")
else
    packet = textutils.unserialize(msg)
    file = fs.open(packet.name, "w")
    file.write(packet.content)
    file.close()
    print("Update successful. Rebooting turtle..")
    sleep(1)
    os.reboot()
end