moved klog initialization into pkg/util package

pkg/util/log.go

@@ -0,0 +1,45 @@
+/*
+Copyright 2018 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package util
+
+import (
+	"flag"
+	"os"
+
+	"k8s.io/klog"
+)
+
+// InitLogging initializes klog alongside glog
+// XXX: This is just a temporary solution till all deps move to klog
+func InitLogging() {
+	if err := flag.Set("logtostderr", "true"); err != nil {
+		klog.Errorf("failed to set logtostderr flag: %v", err)
+		os.Exit(1)
+	}
+
+	flag.Parse()
+
+	klogFlags := flag.NewFlagSet("klog", flag.ExitOnError)
+	klog.InitFlags(klogFlags)
+
+	// Sync klog flags with glog
+	flag.CommandLine.VisitAll(func(f1 *flag.Flag) {
+		if f2 := klogFlags.Lookup(f1.Name); f2 != nil {
+			f2.Value.Set(f1.Value.String()) // nolint: errcheck, gosec
+		}
+	})
+}