feat: Waku v2 bridge

Issue #12610

vendor/github.com/anacrolix/log/level.go

@@ -0,0 +1,51 @@
+package log
+
+import (
+	"strconv"
+)
+
+type Level struct {
+	rank   int
+	logStr string
+}
+
+var levelKey = new(struct{})
+
+var (
+	NotSet   = Level{0, "UNSET"}
+	Debug    = Level{1, "DEBUG"}
+	Info     = Level{2, "INFO"}
+	Warning  = Level{3, "WARN"}
+	Error    = Level{4, "ERROR"}
+	Critical = Level{5, "CRIT"}
+	// Will this get special treatment? Not yet.
+	Fatal = Level{6, "FATAL"}
+)
+
+func (l Level) LogString() string {
+	switch l.rank {
+	case NotSet.rank:
+		return "unset"
+	case Debug.rank:
+		return "debug"
+	case Info.rank:
+		return "info"
+	case Warning.rank:
+		return "warn"
+	case Error.rank:
+		return "error"
+	case Critical.rank:
+		return "crit"
+	case Fatal.rank:
+		return "fatal"
+	default:
+		return strconv.FormatInt(int64(l.rank), 10)
+	}
+}
+
+func (l Level) LessThan(r Level) bool {
+	if l.rank == NotSet.rank {
+		return false
+	}
+	return l.rank < r.rank
+}