rebase: update controller-runtime package to v0.9.2

This commit updates controller-runtime to v0.9.2 and
makes changes in persistentvolume.go to add context to
various functions and function calls made here instead of
context.TODO().

Signed-off-by: Rakshith R <rar@redhat.com>

vendor/sigs.k8s.io/controller-runtime/pkg/client/metadata_client.go

@@ -0,0 +1,195 @@
+/*
+Copyright 2020 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 client
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	"k8s.io/apimachinery/pkg/api/meta"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/runtime/schema"
+	"k8s.io/client-go/metadata"
+)
+
+// TODO(directxman12): we could rewrite this on top of the low-level REST
+// client to avoid the extra shallow copy at the end, but I'm not sure it's
+// worth it -- the metadata client deals with falling back to loading the whole
+// object on older API servers, etc, and we'd have to reproduce that.
+
+// metadataClient is a client that reads & writes metadata-only requests to/from the API server.
+type metadataClient struct {
+	client     metadata.Interface
+	restMapper meta.RESTMapper
+}
+
+func (mc *metadataClient) getResourceInterface(gvk schema.GroupVersionKind, ns string) (metadata.ResourceInterface, error) {
+	mapping, err := mc.restMapper.RESTMapping(gvk.GroupKind(), gvk.Version)
+	if err != nil {
+		return nil, err
+	}
+	if mapping.Scope.Name() == meta.RESTScopeNameRoot {
+		return mc.client.Resource(mapping.Resource), nil
+	}
+	return mc.client.Resource(mapping.Resource).Namespace(ns), nil
+}
+
+// Delete implements client.Client.
+func (mc *metadataClient) Delete(ctx context.Context, obj Object, opts ...DeleteOption) error {
+	metadata, ok := obj.(*metav1.PartialObjectMetadata)
+	if !ok {
+		return fmt.Errorf("metadata client did not understand object: %T", obj)
+	}
+
+	resInt, err := mc.getResourceInterface(metadata.GroupVersionKind(), metadata.Namespace)
+	if err != nil {
+		return err
+	}
+
+	deleteOpts := DeleteOptions{}
+	deleteOpts.ApplyOptions(opts)
+
+	return resInt.Delete(ctx, metadata.Name, *deleteOpts.AsDeleteOptions())
+}
+
+// DeleteAllOf implements client.Client.
+func (mc *metadataClient) DeleteAllOf(ctx context.Context, obj Object, opts ...DeleteAllOfOption) error {
+	metadata, ok := obj.(*metav1.PartialObjectMetadata)
+	if !ok {
+		return fmt.Errorf("metadata client did not understand object: %T", obj)
+	}
+
+	deleteAllOfOpts := DeleteAllOfOptions{}
+	deleteAllOfOpts.ApplyOptions(opts)
+
+	resInt, err := mc.getResourceInterface(metadata.GroupVersionKind(), deleteAllOfOpts.ListOptions.Namespace)
+	if err != nil {
+		return err
+	}
+
+	return resInt.DeleteCollection(ctx, *deleteAllOfOpts.AsDeleteOptions(), *deleteAllOfOpts.AsListOptions())
+}
+
+// Patch implements client.Client.
+func (mc *metadataClient) Patch(ctx context.Context, obj Object, patch Patch, opts ...PatchOption) error {
+	metadata, ok := obj.(*metav1.PartialObjectMetadata)
+	if !ok {
+		return fmt.Errorf("metadata client did not understand object: %T", obj)
+	}
+
+	gvk := metadata.GroupVersionKind()
+	resInt, err := mc.getResourceInterface(gvk, metadata.Namespace)
+	if err != nil {
+		return err
+	}
+
+	data, err := patch.Data(obj)
+	if err != nil {
+		return err
+	}
+
+	patchOpts := &PatchOptions{}
+	patchOpts.ApplyOptions(opts)
+
+	res, err := resInt.Patch(ctx, metadata.Name, patch.Type(), data, *patchOpts.AsPatchOptions())
+	if err != nil {
+		return err
+	}
+	*metadata = *res
+	metadata.SetGroupVersionKind(gvk) // restore the GVK, which isn't set on metadata
+	return nil
+}
+
+// Get implements client.Client.
+func (mc *metadataClient) Get(ctx context.Context, key ObjectKey, obj Object) error {
+	metadata, ok := obj.(*metav1.PartialObjectMetadata)
+	if !ok {
+		return fmt.Errorf("metadata client did not understand object: %T", obj)
+	}
+
+	gvk := metadata.GroupVersionKind()
+
+	resInt, err := mc.getResourceInterface(gvk, key.Namespace)
+	if err != nil {
+		return err
+	}
+
+	res, err := resInt.Get(ctx, key.Name, metav1.GetOptions{})
+	if err != nil {
+		return err
+	}
+	*metadata = *res
+	metadata.SetGroupVersionKind(gvk) // restore the GVK, which isn't set on metadata
+	return nil
+}
+
+// List implements client.Client.
+func (mc *metadataClient) List(ctx context.Context, obj ObjectList, opts ...ListOption) error {
+	metadata, ok := obj.(*metav1.PartialObjectMetadataList)
+	if !ok {
+		return fmt.Errorf("metadata client did not understand object: %T", obj)
+	}
+
+	gvk := metadata.GroupVersionKind()
+	if strings.HasSuffix(gvk.Kind, "List") {
+		gvk.Kind = gvk.Kind[:len(gvk.Kind)-4]
+	}
+
+	listOpts := ListOptions{}
+	listOpts.ApplyOptions(opts)
+
+	resInt, err := mc.getResourceInterface(gvk, listOpts.Namespace)
+	if err != nil {
+		return err
+	}
+
+	res, err := resInt.List(ctx, *listOpts.AsListOptions())
+	if err != nil {
+		return err
+	}
+	*metadata = *res
+	metadata.SetGroupVersionKind(gvk) // restore the GVK, which isn't set on metadata
+	return nil
+}
+
+func (mc *metadataClient) PatchStatus(ctx context.Context, obj Object, patch Patch, opts ...PatchOption) error {
+	metadata, ok := obj.(*metav1.PartialObjectMetadata)
+	if !ok {
+		return fmt.Errorf("metadata client did not understand object: %T", obj)
+	}
+
+	gvk := metadata.GroupVersionKind()
+	resInt, err := mc.getResourceInterface(gvk, metadata.Namespace)
+	if err != nil {
+		return err
+	}
+
+	data, err := patch.Data(obj)
+	if err != nil {
+		return err
+	}
+
+	patchOpts := &PatchOptions{}
+	res, err := resInt.Patch(ctx, metadata.Name, patch.Type(), data, *patchOpts.AsPatchOptions(), "status")
+	if err != nil {
+		return err
+	}
+	*metadata = *res
+	metadata.SetGroupVersionKind(gvk) // restore the GVK, which isn't set on metadata
+	return nil
+}