// Copyright (C) 2017 Marius Schellenberger

package main

import (
	logger "log"
	"os"
)

var log *logger.Logger

func newLogger(file string) {
	if file == "" {
		log = logger.New(os.Stdout, "", logger.LstdFlags)
		return
	}
	f, err := os.OpenFile(file, os.O_RDWR|os.O_CREATE|os.O_APPEND, 0644)
	if err != nil {
		logger.Fatal(err)
	}
	logger.SetOutput(f)
	log = logger.New(f, "", logger.LstdFlags)
}