a5746c9a0e
Display usage string, not long help, as code, remove angle brackets from output (.md interprets as tags and hides).
99 lines
2.1 KiB
Go
99 lines
2.1 KiB
Go
/*
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Copyright 2014 Google Inc. All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package config
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import (
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"errors"
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"fmt"
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"io"
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"github.com/spf13/cobra"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/client/clientcmd"
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)
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type useContextOptions struct {
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pathOptions *pathOptions
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contextName string
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}
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func NewCmdConfigUseContext(out io.Writer, pathOptions *pathOptions) *cobra.Command {
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options := &useContextOptions{pathOptions: pathOptions}
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cmd := &cobra.Command{
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Use: "use-context CONTEXT_NAME",
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Short: "Sets the current-context in a .kubeconfig file",
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Long: `Sets the current-context in a .kubeconfig file`,
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Run: func(cmd *cobra.Command, args []string) {
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if !options.complete(cmd) {
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return
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}
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err := options.run()
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if err != nil {
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fmt.Printf("%v\n", err)
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}
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},
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}
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return cmd
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}
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func (o useContextOptions) run() error {
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err := o.validate()
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if err != nil {
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return err
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}
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config, filename, err := o.pathOptions.getStartingConfig()
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if err != nil {
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return err
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}
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if len(filename) == 0 {
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return errors.New("cannot set current-context without using a specific file")
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}
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config.CurrentContext = o.contextName
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err = clientcmd.WriteToFile(*config, filename)
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if err != nil {
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return err
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}
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return nil
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}
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func (o *useContextOptions) complete(cmd *cobra.Command) bool {
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endingArgs := cmd.Flags().Args()
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if len(endingArgs) != 1 {
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cmd.Help()
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return false
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}
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o.contextName = endingArgs[0]
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return true
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}
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func (o useContextOptions) validate() error {
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if len(o.contextName) == 0 {
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return errors.New("You must specify a current-context")
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}
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return nil
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}
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