Update To Go 1.14.4

The kubernetes project has been updated to use Go 1.14.4. See below pull
request.

https://github.com/kubernetes/kubernetes/pull/88638

After making the updates to Go 1.14 "make gen" no longer worked. The
file hack/tools.go had to be created to get "make gen" working with Go
1.14.

vendor/k8s.io/code-generator/pkg/namer/tag-override.go

@@ -0,0 +1,58 @@
+/*
+Copyright 2016 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 namer
+
+import (
+	"k8s.io/gengo/namer"
+	"k8s.io/gengo/types"
+)
+
+// TagOverrideNamer is a namer which pulls names from a given tag, if specified,
+// and otherwise falls back to a different namer.
+type TagOverrideNamer struct {
+	tagName  string
+	fallback namer.Namer
+}
+
+// Name returns the tag value if it exists. It no tag was found the fallback namer will be used
+func (n *TagOverrideNamer) Name(t *types.Type) string {
+	if nameOverride := extractTag(n.tagName, append(t.SecondClosestCommentLines, t.CommentLines...)); nameOverride != "" {
+		return nameOverride
+	}
+
+	return n.fallback.Name(t)
+}
+
+// NewTagOverrideNamer creates a namer.Namer which uses the contents of the given tag as
+// the name, or falls back to another Namer if the tag is not present.
+func NewTagOverrideNamer(tagName string, fallback namer.Namer) namer.Namer {
+	return &TagOverrideNamer{
+		tagName:  tagName,
+		fallback: fallback,
+	}
+}
+
+// extractTag gets the comment-tags for the key.  If the tag did not exist, it
+// returns the empty string.
+func extractTag(key string, lines []string) string {
+	val, present := types.ExtractCommentTags("+", lines)[key]
+	if !present || len(val) < 1 {
+		return ""
+	}
+
+	return val[0]
+}

vendor/k8s.io/code-generator/pkg/util/build.go

@@ -0,0 +1,61 @@
+/*
+Copyright 2017 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 (
+	gobuild "go/build"
+	"path"
+	"path/filepath"
+	"reflect"
+	"strings"
+)
+
+type empty struct{}
+
+// CurrentPackage returns the go package of the current directory, or "" if it cannot
+// be derived from the GOPATH.
+func CurrentPackage() string {
+	for _, root := range gobuild.Default.SrcDirs() {
+		if pkg, ok := hasSubdir(root, "."); ok {
+			return pkg
+		}
+	}
+	return ""
+}
+
+func hasSubdir(root, dir string) (rel string, ok bool) {
+	// ensure a tailing separator to properly compare on word-boundaries
+	const sep = string(filepath.Separator)
+	root = filepath.Clean(root)
+	if !strings.HasSuffix(root, sep) {
+		root += sep
+	}
+
+	// check whether root dir starts with root
+	dir = filepath.Clean(dir)
+	if !strings.HasPrefix(dir, root) {
+		return "", false
+	}
+
+	// cut off root
+	return filepath.ToSlash(dir[len(root):]), true
+}
+
+// BoilerplatePath uses the boilerplate in code-generator by calculating the relative path to it.
+func BoilerplatePath() string {
+	return path.Join(reflect.TypeOf(empty{}).PkgPath(), "/../../hack/boilerplate.go.txt")
+}

vendor/k8s.io/code-generator/pkg/util/plural_exceptions.go

@@ -0,0 +1,37 @@
+/*
+Copyright 2017 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 (
+	"fmt"
+	"strings"
+)
+
+// PluralExceptionListToMapOrDie converts the list in "Type:PluralType" to map[string]string.
+// This is used for pluralizer.
+// If the format is wrong, this function will panic.
+func PluralExceptionListToMapOrDie(pluralExceptions []string) map[string]string {
+	pluralExceptionMap := make(map[string]string, len(pluralExceptions))
+	for i := range pluralExceptions {
+		parts := strings.Split(pluralExceptions[i], ":")
+		if len(parts) != 2 {
+			panic(fmt.Sprintf("invalid plural exception definition: %s", pluralExceptions[i]))
+		}
+		pluralExceptionMap[parts[0]] = parts[1]
+	}
+	return pluralExceptionMap
+}