Update vendor

vendor/k8s.io/kubectl/pkg/cmd/util/factory.go

@@ -0,0 +1,66 @@
+/*
+Copyright 2014 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 (
+	"k8s.io/apimachinery/pkg/api/meta"
+	"k8s.io/cli-runtime/pkg/genericclioptions"
+	"k8s.io/cli-runtime/pkg/resource"
+	"k8s.io/client-go/dynamic"
+	"k8s.io/client-go/kubernetes"
+	restclient "k8s.io/client-go/rest"
+	"k8s.io/kubectl/pkg/util/openapi"
+	"k8s.io/kubectl/pkg/validation"
+)
+
+// Factory provides abstractions that allow the Kubectl command to be extended across multiple types
+// of resources and different API sets.
+// The rings are here for a reason. In order for composers to be able to provide alternative factory implementations
+// they need to provide low level pieces of *certain* functions so that when the factory calls back into itself
+// it uses the custom version of the function. Rather than try to enumerate everything that someone would want to override
+// we split the factory into rings, where each ring can depend on methods in an earlier ring, but cannot depend
+// upon peer methods in its own ring.
+// TODO: make the functions interfaces
+// TODO: pass the various interfaces on the factory directly into the command constructors (so the
+// commands are decoupled from the factory).
+type Factory interface {
+	genericclioptions.RESTClientGetter
+
+	// DynamicClient returns a dynamic client ready for use
+	DynamicClient() (dynamic.Interface, error)
+
+	// KubernetesClientSet gives you back an external clientset
+	KubernetesClientSet() (*kubernetes.Clientset, error)
+
+	// Returns a RESTClient for accessing Kubernetes resources or an error.
+	RESTClient() (*restclient.RESTClient, error)
+
+	// NewBuilder returns an object that assists in loading objects from both disk and the server
+	// and which implements the common patterns for CLI interactions with generic resources.
+	NewBuilder() *resource.Builder
+
+	// Returns a RESTClient for working with the specified RESTMapping or an error. This is intended
+	// for working with arbitrary resources and is not guaranteed to point to a Kubernetes APIServer.
+	ClientForMapping(mapping *meta.RESTMapping) (resource.RESTClient, error)
+	// Returns a RESTClient for working with Unstructured objects.
+	UnstructuredClientForMapping(mapping *meta.RESTMapping) (resource.RESTClient, error)
+
+	// Returns a schema that can validate objects stored on disk.
+	Validator(validate bool) (validation.Schema, error)
+	// OpenAPISchema returns the schema openapi schema definition
+	OpenAPISchema() (openapi.Resources, error)
+}