kubernetes/pkg/kubectl/cmd/config/unset.go
Michael Rubin 760b04e294 Use dedent for the kubectl commands
The one side effect is that for the "kubectl help" commands a newline
is prepended to output, which will alter the yaml output.

Here we use dedent to format the code to match the output.

hack/update-generated-docs.sh has been run and the affected files have
been added.

Note: for describe.go we added a period to the end of an output message.
2016-06-26 22:51:14 -07:00

109 lines
2.4 KiB
Go

/*
Copyright 2014 The Kubernetes Authors All rights reserved.
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 config
import (
"errors"
"fmt"
"io"
"reflect"
"github.com/renstrom/dedent"
"github.com/spf13/cobra"
"k8s.io/kubernetes/pkg/client/unversioned/clientcmd"
)
type unsetOptions struct {
configAccess clientcmd.ConfigAccess
propertyName string
}
var unset_long = dedent.Dedent(`
Unsets an individual value in a kubeconfig file
PROPERTY_NAME is a dot delimited name where each token represents either a attribute name or a map key. Map keys may not contain dots.`)
func NewCmdConfigUnset(out io.Writer, configAccess clientcmd.ConfigAccess) *cobra.Command {
options := &unsetOptions{configAccess: configAccess}
cmd := &cobra.Command{
Use: "unset PROPERTY_NAME",
Short: "Unsets an individual value in a kubeconfig file",
Long: unset_long,
Run: func(cmd *cobra.Command, args []string) {
if !options.complete(cmd) {
return
}
err := options.run()
if err != nil {
fmt.Fprintf(out, "%v\n", err)
} else {
fmt.Fprintf(out, "property %q unset.\n", options.propertyName)
}
},
}
return cmd
}
func (o unsetOptions) run() error {
err := o.validate()
if err != nil {
return err
}
config, err := o.configAccess.GetStartingConfig()
if err != nil {
return err
}
steps, err := newNavigationSteps(o.propertyName)
if err != nil {
return err
}
err = modifyConfig(reflect.ValueOf(config), steps, "", true, true)
if err != nil {
return err
}
if err := clientcmd.ModifyConfig(o.configAccess, *config, false); err != nil {
return err
}
return nil
}
func (o *unsetOptions) complete(cmd *cobra.Command) bool {
endingArgs := cmd.Flags().Args()
if len(endingArgs) != 1 {
cmd.Help()
return false
}
o.propertyName = endingArgs[0]
return true
}
func (o unsetOptions) validate() error {
if len(o.propertyName) == 0 {
return errors.New("you must specify a property")
}
return nil
}