Auto-updater

main.lua

local async = require('async')

function love.load(args)
  async.load()
  async.ensure.atLeast(2)
  
  local version = nil
  local version_request = async.define("version_request", function()
    local request = require('luajit-request')
    local response = request.send(link to the version file)
    return response.body, response.code
  end)
  
  local game_request = async.define("game_request", function(version)
    local request = require('luajit-request')
    local response = request.send(link to the game using the version variable)
    return response.body, response.code
  end)
  
  version_request(function(result, status)
    if status == 200 then
      version = getVersion(result) -- TODO: define getVersion
      if not love.filesystem.isFile('game_' .. version .. '.love') then
        game_request(function(result, status)
          if status == 200 then
            love.filesystem.write('game_' .. version .. '.love', result)  
            love.filesystem.mount('game_' .. version .. '.love', '')
            package.loaded.main = nil
            package.loaded.conf = nil
            love.conf = nil
            love.init()
            love.load(args)
          end
        end, version)
      else
        love.filesystem.mount('game_' .. version .. '.love')
        package.loaded.main = nil
        package.loaded.conf = nil
        love.conf = nil
        love.init()
        love.load(args)
      end
    end
  end)
end

function love.update(dt)
  async.update()
end

function love.draw()
  
end