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			92 lines
		
	
	
		
			1.9 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			92 lines
		
	
	
		
			1.9 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
/*
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Copyright 2014 The Kubernetes Authors 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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)
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type useContextOptions struct {
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	configAccess ConfigAccess
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	contextName  string
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}
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func NewCmdConfigUseContext(out io.Writer, configAccess ConfigAccess) *cobra.Command {
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	options := &useContextOptions{configAccess: configAccess}
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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, err := o.configAccess.GetStartingConfig()
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	if err != nil {
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		return err
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	}
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	config.CurrentContext = o.contextName
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	if err := ModifyConfig(o.configAccess, *config); 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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