First step of adding clinet-gen: add the generator that generates client code

for top-level types.

cmd/libs/go2idl/client-gen/main.go

@@ -0,0 +1,49 @@
+/*
+Copyright 2015 The Kubernetes Authors All rights reserved.
+
+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.
+*/
+
+// client-gen makes the individual typed clients using go2idl.
+package main
+
+import (
+	"k8s.io/kubernetes/cmd/libs/go2idl/args"
+	"k8s.io/kubernetes/cmd/libs/go2idl/client-gen/generators"
+
+	"github.com/golang/glog"
+)
+
+func main() {
+	arguments := args.Default()
+
+	// Override defaults. These are Kubernetes specific input and output
+	// locations.
+	arguments.InputDirs = []string{
+		"k8s.io/kubernetes/pkg/api",
+		"k8s.io/kubernetes/pkg/apis/extensions",
+		"k8s.io/kubernetes/pkg/fields",
+		"k8s.io/kubernetes/pkg/labels",
+		"k8s.io/kubernetes/pkg/watch",
+	}
+	// We may change the output path later.
+	arguments.OutputPackagePath = "k8s.io/kubernetes/pkg/client/clientset/unversioned"
+
+	if err := arguments.Execute(
+		generators.NameSystems(),
+		generators.DefaultNameSystem(),
+		generators.Packages,
+	); err != nil {
+		glog.Fatalf("Error: %v", err)
+	}
+}