logger

type Helper struct {

	// zap
	*zap.Logger
	// contains filtered or unexported fields
}

type Listener interface {
	OnChanged([]byte)
}

type Options struct {
	// log save filename
	Filename string
	// MB
	MaxSize int
	// number of files
	MaxBackups int
	// day
	MaxDays int
	// if true output code line
	Caller bool
	// file log level [debug info warn error dpanic panic fatal]
	FileLevel string
	// console file level [debug info warn error dpanic panic fatal]
	ConsoleLevel string
}

type SnapshotListener struct {
	// contains filtered or unexported fields
}