Persistence API

if not fs.exists("/.persistence") then
        fs.makeDir("/.persistence")
end

function store(sName, stuff)
        local filePath = fs.combine("/.persistence", sName)
        if stuff == nil then
                return fs.delete(filePath)
        end
        local handle = fs.open(filePath, "w")
        handle.write(textutils.serialize(stuff))
        handle.close()
end

function pull(sName)
   local filePath = fs.combine("/.persistence", sName)
   if fs.exists(filePath) then
         local handle = fs.open(filePath, "r")
         local stuff = handle.readAll()
         handle.close()
         return textutils.unserialize(stuff)
   else
         return nil
   end
end