Refactor log

log/level.go

@@ -0,0 +1,59 @@
+package log
+
+import (
+	E "github.com/sagernet/sing/common/exceptions"
+)
+
+type Level = uint8
+
+const (
+	LevelPanic Level = iota
+	LevelFatal
+	LevelError
+	LevelWarn
+	LevelInfo
+	LevelDebug
+	LevelTrace
+)
+
+func FormatLevel(level Level) string {
+	switch level {
+	case LevelTrace:
+		return "trace"
+	case LevelDebug:
+		return "debug"
+	case LevelInfo:
+		return "info"
+	case LevelWarn:
+		return "warn"
+	case LevelError:
+		return "error"
+	case LevelFatal:
+		return "fatal"
+	case LevelPanic:
+		return "panic"
+	default:
+		return "unknown"
+	}
+}
+
+func ParseLevel(level string) (Level, error) {
+	switch level {
+	case "trace":
+		return LevelTrace, nil
+	case "debug":
+		return LevelDebug, nil
+	case "info":
+		return LevelInfo, nil
+	case "warn", "warning":
+		return LevelWarn, nil
+	case "error":
+		return LevelError, nil
+	case "fatal":
+		return LevelFatal, nil
+	case "panic":
+		return LevelPanic, nil
+	default:
+		return LevelTrace, E.New("unknown log level: ", level)
+	}
+}