Update go dependencies (#4524)

vendor/k8s.io/code-generator/cmd/client-gen/generators/generator_for_clientset.go

@@ -134,9 +134,14 @@ func (c *Clientset) Discovery() $.DiscoveryInterface|raw$ {
 
 var newClientsetForConfigTemplate = `
 // NewForConfig creates a new Clientset for the given config.
+// If config's RateLimiter is not set and QPS and Burst are acceptable, 
+// NewForConfig will generate a rate-limiter in configShallowCopy.
 func NewForConfig(c *$.Config|raw$) (*Clientset, error) {
 	configShallowCopy := *c
 	if configShallowCopy.RateLimiter == nil && configShallowCopy.QPS > 0 {
+		if configShallowCopy.Burst <= 0 {
+			return nil, fmt.Errorf("Burst is required to be greater than 0 when RateLimiter is not set and QPS is set to greater than 0")
+		}
 		configShallowCopy.RateLimiter = $.flowcontrolNewTokenBucketRateLimiter|raw$(configShallowCopy.QPS, configShallowCopy.Burst)
 	}
 	var cs Clientset

vendor/k8s.io/code-generator/cmd/go-to-protobuf/protobuf/parser.go

@@ -132,7 +132,7 @@ func rewriteOptionalMethods(decl ast.Decl, isOptional OptionalFunc) {
 		switch t.Name.Name {
 		case "Unmarshal":
 			ast.Walk(&optionalItemsVisitor{}, t.Body)
-		case "MarshalTo", "Size", "String":
+		case "MarshalTo", "Size", "String", "MarshalToSizedBuffer":
 			ast.Walk(&optionalItemsVisitor{}, t.Body)
 			fallthrough
 		case "Marshal":

vendor/k8s.io/code-generator/cmd/import-boss/main.go

@@ -63,6 +63,7 @@ import (
 	"os"
 	"path/filepath"
 
+	"github.com/spf13/pflag"
 	"k8s.io/code-generator/pkg/util"
 	"k8s.io/gengo/args"
 	"k8s.io/gengo/examples/import-boss/generators"
@@ -81,6 +82,7 @@ func main() {
 		"k8s.io/kubernetes/cmd/...",
 		"k8s.io/kubernetes/plugin/...",
 	}
+	pflag.CommandLine.BoolVar(&arguments.IncludeTestFiles, "include-test-files", false, "If true, include *_test.go files.")
 
 	if err := arguments.Execute(
 		generators.NameSystems(),

vendor/k8s.io/code-generator/cmd/informer-gen/generators/packages.go

@@ -283,10 +283,9 @@ func factoryInterfacePackage(basePackage string, boilerplate []byte, clientSetPa
 
 func groupPackage(basePackage string, groupVersions clientgentypes.GroupVersions, boilerplate []byte) generator.Package {
 	packagePath := filepath.Join(basePackage, groupVersions.PackageName)
-	groupPkgName := strings.Split(string(groupVersions.Group), ".")[0]
 
 	return &generator.DefaultPackage{
-		PackageName: groupPkgName,
+		PackageName: groupVersions.PackageName,
 		PackagePath: packagePath,
 		HeaderText:  boilerplate,
 		GeneratorFunc: func(c *generator.Context) (generators []generator.Generator) {

vendor/k8s.io/code-generator/cmd/openapi-gen/main.go

@@ -0,0 +1,57 @@
+/*
+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.
+*/
+
+// This package generates openAPI definition file to be used in open API spec generation on API servers. To generate
+// definition for a specific type or package add "+k8s:openapi-gen=true" tag to the type/package comment lines. To
+// exclude a type from a tagged package, add "+k8s:openapi-gen=false" tag to the type comment lines.
+
+package main
+
+import (
+	"flag"
+	"log"
+
+	generatorargs "k8s.io/kube-openapi/cmd/openapi-gen/args"
+	"k8s.io/kube-openapi/pkg/generators"
+
+	"github.com/spf13/pflag"
+
+	"k8s.io/klog"
+)
+
+func main() {
+	klog.InitFlags(nil)
+	genericArgs, customArgs := generatorargs.NewDefaults()
+
+	genericArgs.AddFlags(pflag.CommandLine)
+	customArgs.AddFlags(pflag.CommandLine)
+	flag.Set("logtostderr", "true")
+	pflag.CommandLine.AddGoFlagSet(flag.CommandLine)
+	pflag.Parse()
+
+	if err := generatorargs.Validate(genericArgs); err != nil {
+		log.Fatalf("Arguments validation error: %v", err)
+	}
+
+	// Generates the code for the OpenAPIDefinitions.
+	if err := genericArgs.Execute(
+		generators.NameSystems(),
+		generators.DefaultNameSystem(),
+		generators.Packages,
+	); err != nil {
+		log.Fatalf("OpenAPI code generation error: %v", err)
+	}
+}