Update vendor

vendor/k8s.io/cli-runtime/pkg/genericclioptions/json_yaml_flags.go

@@ -0,0 +1,68 @@
+/*
+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.
+*/
+
+package genericclioptions
+
+import (
+	"strings"
+
+	"github.com/spf13/cobra"
+
+	"k8s.io/cli-runtime/pkg/printers"
+)
+
+func (f *JSONYamlPrintFlags) AllowedFormats() []string {
+	if f == nil {
+		return []string{}
+	}
+	return []string{"json", "yaml"}
+}
+
+// JSONYamlPrintFlags provides default flags necessary for json/yaml printing.
+// Given the following flag values, a printer can be requested that knows
+// how to handle printing based on these values.
+type JSONYamlPrintFlags struct {
+}
+
+// ToPrinter receives an outputFormat and returns a printer capable of
+// handling --output=(yaml|json) printing.
+// Returns false if the specified outputFormat does not match a supported format.
+// Supported Format types can be found in pkg/printers/printers.go
+func (f *JSONYamlPrintFlags) ToPrinter(outputFormat string) (printers.ResourcePrinter, error) {
+	var printer printers.ResourcePrinter
+
+	outputFormat = strings.ToLower(outputFormat)
+	switch outputFormat {
+	case "json":
+		printer = &printers.JSONPrinter{}
+	case "yaml":
+		printer = &printers.YAMLPrinter{}
+	default:
+		return nil, NoCompatiblePrinterError{OutputFormat: &outputFormat, AllowedFormats: f.AllowedFormats()}
+	}
+
+	return printer, nil
+}
+
+// AddFlags receives a *cobra.Command reference and binds
+// flags related to JSON or Yaml printing to it
+func (f *JSONYamlPrintFlags) AddFlags(c *cobra.Command) {}
+
+// NewJSONYamlPrintFlags returns flags associated with
+// yaml or json printing, with default values set.
+func NewJSONYamlPrintFlags() *JSONYamlPrintFlags {
+	return &JSONYamlPrintFlags{}
+}