lib_log

LOG_FILE_NAME = "debug.log"
function log(txt)
  local hFile
  if fs.exists(LOG_FILE_NAME) then
    hFile = fs.open(LOG_FILE_NAME, "a")
  else
    hFile = fs.open(LOG_FILE_NAME, "w")
  end
  hFile.writeLine(txt)
  hFile.close()
end