add k8s client

vendor/k8s.io/client-go/dynamic/dynamic_util.go

@@ -0,0 +1,96 @@
+/*
+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 dynamic
+
+import (
+	"fmt"
+
+	"k8s.io/apimachinery/pkg/api/meta"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
+	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/apimachinery/pkg/runtime/schema"
+)
+
+// VersionInterfaces provides an object converter and metadata
+// accessor appropriate for use with unstructured objects.
+func VersionInterfaces(schema.GroupVersion) (*meta.VersionInterfaces, error) {
+	return &meta.VersionInterfaces{
+		ObjectConvertor:  &unstructured.UnstructuredObjectConverter{},
+		MetadataAccessor: meta.NewAccessor(),
+	}, nil
+}
+
+// NewDiscoveryRESTMapper returns a RESTMapper based on discovery information.
+func NewDiscoveryRESTMapper(resources []*metav1.APIResourceList, versionFunc meta.VersionInterfacesFunc) (*meta.DefaultRESTMapper, error) {
+	rm := meta.NewDefaultRESTMapper(nil, versionFunc)
+	for _, resourceList := range resources {
+		gv, err := schema.ParseGroupVersion(resourceList.GroupVersion)
+		if err != nil {
+			return nil, err
+		}
+
+		for _, resource := range resourceList.APIResources {
+			gvk := gv.WithKind(resource.Kind)
+			scope := meta.RESTScopeRoot
+			if resource.Namespaced {
+				scope = meta.RESTScopeNamespace
+			}
+			rm.Add(gvk, scope)
+		}
+	}
+	return rm, nil
+}
+
+// ObjectTyper provides an ObjectTyper implementation for
+// unstructured.Unstructured object based on discovery information.
+type ObjectTyper struct {
+	registered map[schema.GroupVersionKind]bool
+}
+
+// NewObjectTyper constructs an ObjectTyper from discovery information.
+func NewObjectTyper(resources []*metav1.APIResourceList) (runtime.ObjectTyper, error) {
+	ot := &ObjectTyper{registered: make(map[schema.GroupVersionKind]bool)}
+	for _, resourceList := range resources {
+		gv, err := schema.ParseGroupVersion(resourceList.GroupVersion)
+		if err != nil {
+			return nil, err
+		}
+
+		for _, resource := range resourceList.APIResources {
+			ot.registered[gv.WithKind(resource.Kind)] = true
+		}
+	}
+	return ot, nil
+}
+
+// ObjectKinds returns a slice of one element with the
+// group,version,kind of the provided object, or an error if the
+// object is not *unstructured.Unstructured or has no group,version,kind
+// information.
+func (ot *ObjectTyper) ObjectKinds(obj runtime.Object) ([]schema.GroupVersionKind, bool, error) {
+	if _, ok := obj.(*unstructured.Unstructured); !ok {
+		return nil, false, fmt.Errorf("type %T is invalid for dynamic object typer", obj)
+	}
+	return []schema.GroupVersionKind{obj.GetObjectKind().GroupVersionKind()}, false, nil
+}
+
+// Recognizes returns true if the provided group,version,kind was in
+// the discovery information.
+func (ot *ObjectTyper) Recognizes(gvk schema.GroupVersionKind) bool {
+	return ot.registered[gvk]
+}