package navi import ( "log" "github.com/spf13/viper" "gopkg.in/natefinch/lumberjack.v2" ) var accessLogger *log.Logger func InitializeLogging() { accessLogger = log.New(&lumberjack.Logger{ Filename: viper.GetString("logging.access"), MaxSize: 10, MaxBackups: 3, MaxAge: 30, Compress: true, }, "", 0) }