pcmt/slogging/log.go
leo 1fb7479d8e
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slogger: rename Logger to Slogger
2023-05-11 17:06:20 +02:00

95 lines
1.6 KiB
Go

package slogging
import (
"fmt"
"os"
"golang.org/x/exp/slog"
)
type Slogger struct {
*slog.Logger
}
const (
LevelInfo int = iota
LevelDebug
LevelWarn
LevelError
)
var logger *Slogger
var opts slog.HandlerOptions
func Logger() *Slogger {
return logger
}
func Init(jsonHandler bool) *Slogger {
opts = slog.HandlerOptions{
Level: slog.LevelInfo,
}
if jsonHandler {
logger = &Slogger{slog.New(opts.NewJSONHandler(os.Stderr))}
} else {
logger = &Slogger{slog.New(opts.NewTextHandler(os.Stderr))}
}
slog.SetDefault(logger.Logger)
logger.Info("slog logger initialised")
return logger
}
// SetLevel allows setting log level and returns the pointer to the re-created
// logger.
func SetLevel(level int) *Slogger {
switch level {
case LevelInfo:
opts.Level = slog.LevelInfo
case LevelDebug:
opts.Level = slog.LevelDebug
case LevelWarn:
opts.Level = slog.LevelWarn
case LevelError:
opts.Level = slog.LevelError
default:
logger.Infof("unknown level '%d', resetting to level INFO", level)
opts.Level = slog.LevelInfo
}
if _, ok := logger.Handler().(*slog.JSONHandler); ok {
logger = &Slogger{slog.New(opts.NewJSONHandler(os.Stderr))}
} else {
logger = &Slogger{slog.New(opts.NewTextHandler(os.Stderr))}
}
slog.SetDefault(logger.Logger)
return logger
}
func (l *Slogger) Debugf(msg string, args ...any) {
l.Debug(fmt.Sprintf(msg, args...))
}
func (l *Slogger) Infof(msg string, args ...any) {
l.Info(fmt.Sprintf(msg, args...))
}
func (l *Slogger) Warnf(msg string, args ...any) {
l.Warn(fmt.Sprintf(msg, args...))
}
func (l *Slogger) Errorf(msg string, args ...any) {
l.Error(fmt.Sprintf(msg, args...))
}