logger

type Config struct {
	Level      string `json:"level" yaml:"level"`
	Console    bool   `json:"console" yaml:"console"`
	FileConfig `json:"fileConfig" yaml:"fileConfig"`
}

type FileConfig struct {
	Filename   string `json:"fileName" yaml:"fileName"`
	MaxSize    int    `json:"maxSize" yaml:"maxSize"`
	MaxAge     int    `json:"maxAge" yaml:"maxAge"`
	MaxBackups int    `json:"maxBackups" yaml:"maxBackups"`
	LocalTime  bool   `json:"localTime" yaml:"localTime"`
	Compress   bool   `json:"compress" yaml:"compress"`
}

type Logger interface {
	Sync()
	Verbose() bool

	Debug(msg string)
	Debugf(tmpl string, args ...interface{})

	Info(msg string)
	Infof(tmpl string, args ...interface{})

	Warn(msg string)
	Warnf(tmpl string, args ...interface{})

	Error(msg string)
	Errorf(tmpl string, args ...interface{})

	Print(msg string)
	Printf(tmpl string, v ...interface{})

	L() Logger
}