Greeter

local function resetLine()
  local x, y = term.getCursorPos()
  term.clearLine()
  term.setCursorPos(1, y)
end

local dataPath = "lib/greeter/"

local function validateFS()
  shell.setDir("")
  if fs.exists(dataPath .. "greeter.lua") == false then
    resetLine()
    term.write("Installing copy of launcher...\n")
    shell.run("pastebin", "get XC7CerBT " .. dataPath .. "greeter.lua")
  end
  if fs.exists(dataPath .. "player_data.lua") == false then
    resetLine()
    term.write("Installing player_data.lua...")
    shell.run("pastebin", "get CAhYfSDP " .. dataPath .. "player_data.lua")
  end
  if fs.exists(dataPath .. "player_tracker.lua") == false then
    resetLine()
    term.write("Installing player_tracker.lua...")
    shell.run("pastebin", "get z60S7B4t " .. dataPath .. "player_tracker.lua")
  end
  if fs.exists(dataPath .. "player_greeter.lua") == false then
    resetLine()
    term.write("Installing player_greeter.lua...")
    shell.run("pastebin", "get 3XHgyPW4 " .. dataPath .. "player_greeter.lua")
  end
end

validateFS()

multishell.launch({}, dataPath .. "player_tracker.lua")
multishell.launch({}, dataPath .. "player_greeter.lua")

shell.setAlias("greet", dataPath .. "greeter.lua")