Bumping k8s dependencies to 1.13

vendor/golang.org/x/tools/internal/jsonrpc2/log.go

@@ -0,0 +1,59 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package jsonrpc2
+
+import (
+	"encoding/json"
+	"log"
+	"time"
+)
+
+// Logger is an option you can pass to NewConn which is invoked for
+// all messages flowing through a Conn.
+// direction indicates if the message being recieved or sent
+// id is the message id, if not set it was a notification
+// elapsed is the time between a call being seen and the response, and is
+// negative for anything that is not a response.
+// method is the method name specified in the message
+// payload is the parameters for a call or notification, and the result for a
+// response
+type Logger = func(direction Direction, id *ID, elapsed time.Duration, method string, payload *json.RawMessage, err *Error)
+
+// Direction is used to indicate to a logger whether the logged message was being
+// sent or received.
+type Direction bool
+
+const (
+	// Send indicates the message is outgoing.
+	Send = Direction(true)
+	// Receive indicates the message is incoming.
+	Receive = Direction(false)
+)
+
+func (d Direction) String() string {
+	switch d {
+	case Send:
+		return "send"
+	case Receive:
+		return "receive"
+	default:
+		panic("unreachable")
+	}
+}
+
+// Log is an implementation of Logger that outputs using log.Print
+// It is not used by default, but is provided for easy logging in users code.
+func Log(direction Direction, id *ID, elapsed time.Duration, method string, payload *json.RawMessage, err *Error) {
+	switch {
+	case err != nil:
+		log.Printf("%v failure [%v] %s %v", direction, id, method, err)
+	case id == nil:
+		log.Printf("%v notification %s %s", direction, method, *payload)
+	case elapsed >= 0:
+		log.Printf("%v response in %v [%v] %s %s", direction, elapsed, id, method, *payload)
+	default:
+		log.Printf("%v call [%v] %s %s", direction, id, method, *payload)
+	}
+}