4f17f7ff81
BREAKING CHANGE: Die alte Shell-Version muss vor der Installation der Go-Version deinstalliert werden.
83 lines
1.4 KiB
Go
83 lines
1.4 KiB
Go
package syslog
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import (
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"fmt"
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"io"
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"log"
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"strings"
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"sync"
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)
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type Level int
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const (
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Debug Level = iota
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Info
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Warn
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Error
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)
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type Logger struct {
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mu sync.Mutex
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min Level
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log *log.Logger
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}
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func New(w io.Writer, min string) *Logger {
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return &Logger{
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min: ParseLevel(min, Info),
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log: log.New(w, "", log.LstdFlags),
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}
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}
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func ParseLevel(s string, fallback Level) Level {
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switch strings.ToUpper(strings.TrimSpace(s)) {
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case "DEBUG":
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return Debug
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case "INFO", "":
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return Info
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case "WARN", "WARNING":
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return Warn
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case "ERROR", "ERR":
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return Error
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default:
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return fallback
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}
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}
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func LevelName(l Level) string {
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switch l {
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case Debug:
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return "DEBUG"
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case Info:
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return "INFO"
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case Warn:
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return "WARN"
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case Error:
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return "ERROR"
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default:
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return "INFO"
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}
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}
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func (l *Logger) Enabled(level Level) bool {
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if l == nil {
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return false
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}
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return level >= l.min
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}
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func (l *Logger) Logf(level Level, format string, args ...any) {
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if !l.Enabled(level) {
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return
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}
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l.mu.Lock()
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defer l.mu.Unlock()
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l.log.Printf("[%s] [ADGUARD-SHIELDD] %s", LevelName(level), fmt.Sprintf(format, args...))
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}
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func (l *Logger) Debugf(format string, args ...any) { l.Logf(Debug, format, args...) }
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func (l *Logger) Infof(format string, args ...any) { l.Logf(Info, format, args...) }
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func (l *Logger) Warnf(format string, args ...any) { l.Logf(Warn, format, args...) }
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func (l *Logger) Errorf(format string, args ...any) { l.Logf(Error, format, args...) }
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