Replace godep with dep

vendor/k8s.io/kubernetes/pkg/kubectl/cmd/version.go

@@ -0,0 +1,147 @@
+/*
+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 cmd
+
+import (
+	"encoding/json"
+	"errors"
+	"fmt"
+	"io"
+
+	"github.com/ghodss/yaml"
+	"github.com/spf13/cobra"
+
+	apimachineryversion "k8s.io/apimachinery/pkg/version"
+	"k8s.io/kubernetes/pkg/kubectl/cmd/templates"
+	cmdutil "k8s.io/kubernetes/pkg/kubectl/cmd/util"
+	"k8s.io/kubernetes/pkg/kubectl/util/i18n"
+	"k8s.io/kubernetes/pkg/version"
+)
+
+type Version struct {
+	ClientVersion *apimachineryversion.Info `json:"clientVersion,omitempty" yaml:"clientVersion,omitempty"`
+	ServerVersion *apimachineryversion.Info `json:"serverVersion,omitempty" yaml:"serverVersion,omitempty"`
+}
+
+// VersionOptions: describe the options available to users of the "kubectl
+// version" command.
+type VersionOptions struct {
+	clientOnly bool
+	short      bool
+	output     string
+}
+
+var (
+	versionExample = templates.Examples(i18n.T(`
+		# Print the client and server versions for the current context
+		kubectl version`))
+)
+
+func NewCmdVersion(f cmdutil.Factory, out io.Writer) *cobra.Command {
+	cmd := &cobra.Command{
+		Use:     "version",
+		Short:   i18n.T("Print the client and server version information"),
+		Long:    "Print the client and server version information for the current context",
+		Example: versionExample,
+		Run: func(cmd *cobra.Command, args []string) {
+			options := new(VersionOptions)
+			cmdutil.CheckErr(options.Complete(cmd))
+			cmdutil.CheckErr(options.Validate())
+			cmdutil.CheckErr(options.Run(f, out))
+		},
+	}
+	cmd.Flags().BoolP("client", "c", false, "Client version only (no server required).")
+	cmd.Flags().BoolP("short", "", false, "Print just the version number.")
+	cmd.Flags().StringP("output", "o", "", "One of 'yaml' or 'json'.")
+	cmd.Flags().MarkShorthandDeprecated("client", "please use --client instead.")
+	return cmd
+}
+
+func retrieveServerVersion(f cmdutil.Factory) (*apimachineryversion.Info, error) {
+	discoveryClient, err := f.DiscoveryClient()
+	if err != nil {
+		return nil, err
+	}
+
+	// Always request fresh data from the server
+	discoveryClient.Invalidate()
+	return discoveryClient.ServerVersion()
+}
+
+func (o *VersionOptions) Run(f cmdutil.Factory, out io.Writer) error {
+	var (
+		serverVersion *apimachineryversion.Info
+		serverErr     error
+		versionInfo   Version
+	)
+
+	clientVersion := version.Get()
+	versionInfo.ClientVersion = &clientVersion
+
+	if !o.clientOnly {
+		serverVersion, serverErr = retrieveServerVersion(f)
+		versionInfo.ServerVersion = serverVersion
+	}
+
+	switch o.output {
+	case "":
+		if o.short {
+			fmt.Fprintf(out, "Client Version: %s\n", clientVersion.GitVersion)
+			if serverVersion != nil {
+				fmt.Fprintf(out, "Server Version: %s\n", serverVersion.GitVersion)
+			}
+		} else {
+			fmt.Fprintf(out, "Client Version: %s\n", fmt.Sprintf("%#v", clientVersion))
+			if serverVersion != nil {
+				fmt.Fprintf(out, "Server Version: %s\n", fmt.Sprintf("%#v", *serverVersion))
+			}
+		}
+	case "yaml":
+		marshalled, err := yaml.Marshal(&versionInfo)
+		if err != nil {
+			return err
+		}
+		fmt.Fprintln(out, string(marshalled))
+	case "json":
+		marshalled, err := json.MarshalIndent(&versionInfo, "", "  ")
+		if err != nil {
+			return err
+		}
+		fmt.Fprintln(out, string(marshalled))
+	default:
+		// There is a bug in the program if we hit this case.
+		// However, we follow a policy of never panicking.
+		return fmt.Errorf("VersionOptions were not validated: --output=%q should have been rejected", o.output)
+	}
+
+	return serverErr
+}
+
+func (o *VersionOptions) Complete(cmd *cobra.Command) error {
+	o.clientOnly = cmdutil.GetFlagBool(cmd, "client")
+	o.short = cmdutil.GetFlagBool(cmd, "short")
+	o.output = cmdutil.GetFlagString(cmd, "output")
+	return nil
+}
+
+func (o *VersionOptions) Validate() error {
+	if o.output != "" && o.output != "yaml" && o.output != "json" {
+		return errors.New(`--output must be 'yaml' or 'json'`)
+	}
+
+	return nil
+}