loglevel.go

package rz

import "fmt"

// LogLevel defines log levels.
type LogLevel uint8

const (
	// DebugLevel defines debug log level.
	DebugLevel LogLevel = iota
	// InfoLevel defines info log level.
	InfoLevel
	// WarnLevel defines warn log level.
	WarnLevel
	// ErrorLevel defines error log level.
	ErrorLevel
	// FatalLevel defines fatal log level.
	FatalLevel
	// PanicLevel defines panic log level.
	PanicLevel
	// NoLevel defines an absent log level.
	NoLevel
	// Disabled disables the logger.
	Disabled
)

func (l LogLevel) String() string {
	switch l {
	case DebugLevel:
		return "debug"
	case InfoLevel:
		return "info"
	case WarnLevel:
		return "warning"
	case ErrorLevel:
		return "error"
	case FatalLevel:
		return "fatal"
	case PanicLevel:
		return "panic"
	case NoLevel:
		return ""
	}
	return ""
}

// ParseLevel converts a level string into a rz Level value.
// returns an error if the input string does not match known values.
func ParseLevel(levelStr string) (LogLevel, error) {
	switch levelStr {
	case DebugLevel.String():
		return DebugLevel, nil
	case InfoLevel.String():
		return InfoLevel, nil
	case WarnLevel.String():
		return WarnLevel, nil
	case ErrorLevel.String():
		return ErrorLevel, nil
	case FatalLevel.String():
		return FatalLevel, nil
	case PanicLevel.String():
		return PanicLevel, nil
	case NoLevel.String():
		return NoLevel, nil
	}
	return NoLevel, fmt.Errorf("Unknown Level String: '%s', defaulting to NoLevel", levelStr)
}