Initial QSfera import

Server/vendor/github.com/samber/slog-zerolog/v2/zerolog.go

@@ -0,0 +1,58 @@
+package slogzerolog
+
+import (
+	"log/slog"
+
+	"github.com/rs/zerolog"
+	"github.com/rs/zerolog/log"
+)
+
+var LogLevels = map[slog.Level]zerolog.Level{
+	slog.LevelDebug: zerolog.DebugLevel,
+	slog.LevelInfo:  zerolog.InfoLevel,
+	slog.LevelWarn:  zerolog.WarnLevel,
+	slog.LevelError: zerolog.ErrorLevel,
+}
+
+var reverseLogLevels map[zerolog.Level]slog.Level
+
+func init() {
+	reverseLogLevels = map[zerolog.Level]slog.Level{}
+	for level, z := range LogLevels {
+		reverseLogLevels[z] = level
+	}
+}
+
+// ZeroLogLeveler can be used for Option.Level (implements slog.Leveler).
+// If no Logger is provided, the global zerolog.Logger is used.
+type ZeroLogLeveler struct {
+	// optional: zerolog logger (default: log.Logger)
+	Logger *zerolog.Logger
+}
+
+var _ slog.Leveler = ZeroLogLeveler{}
+
+func (z ZeroLogLeveler) Level() slog.Level {
+	var logger = log.Logger
+	if z.Logger != nil {
+		logger = *z.Logger
+	}
+	zeroLogLevel := logger.GetLevel()
+	level, ok := reverseLogLevels[zeroLogLevel]
+	if !ok {
+		switch zeroLogLevel {
+		case zerolog.PanicLevel, zerolog.FatalLevel:
+			return slog.LevelError
+		case zerolog.NoLevel:
+			return slog.LevelInfo
+		case zerolog.Disabled:
+			return slog.LevelDebug - 1
+		default:
+			if zeroLogLevel < zerolog.DebugLevel {
+				return slog.Level(int(slog.LevelDebug) + int(zeroLogLevel))
+			}
+			return slog.LevelInfo
+		}
+	}
+	return level
+}