| /* |
| 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 config |
| |
| import ( |
| "errors" |
| "fmt" |
| "io" |
| "reflect" |
| |
| "github.com/spf13/cobra" |
| "k8s.io/kubernetes/pkg/kubectl/util/templates" |
| |
| "k8s.io/client-go/tools/clientcmd" |
| cmdutil "k8s.io/kubernetes/pkg/kubectl/cmd/util" |
| "k8s.io/kubernetes/pkg/kubectl/util/i18n" |
| ) |
| |
| type unsetOptions struct { |
| configAccess clientcmd.ConfigAccess |
| propertyName string |
| } |
| |
| var ( |
| unsetLong = templates.LongDesc(` |
| Unsets an individual value in a kubeconfig file |
| |
| PROPERTY_NAME is a dot delimited name where each token represents either an attribute name or a map key. Map keys may not contain dots.`) |
| |
| unsetExample = templates.Examples(` |
| # Unset the current-context. |
| kubectl config unset current-context |
| |
| # Unset namespace in foo context. |
| kubectl config unset contexts.foo.namespace`) |
| ) |
| |
| func NewCmdConfigUnset(out io.Writer, configAccess clientcmd.ConfigAccess) *cobra.Command { |
| options := &unsetOptions{configAccess: configAccess} |
| |
| cmd := &cobra.Command{ |
| Use: "unset PROPERTY_NAME", |
| DisableFlagsInUseLine: true, |
| Short: i18n.T("Unsets an individual value in a kubeconfig file"), |
| Long: unsetLong, |
| Example: unsetExample, |
| Run: func(cmd *cobra.Command, args []string) { |
| cmdutil.CheckErr(options.complete(cmd, args)) |
| cmdutil.CheckErr(options.run(out)) |
| |
| }, |
| } |
| |
| return cmd |
| } |
| |
| func (o unsetOptions) run(out io.Writer) 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 |
| } |
| if _, err := fmt.Fprintf(out, "Property %q unset.\n", o.propertyName); err != nil { |
| return err |
| } |
| return nil |
| } |
| |
| func (o *unsetOptions) complete(cmd *cobra.Command, args []string) error { |
| if len(args) != 1 { |
| return helpErrorf(cmd, "Unexpected args: %v", args) |
| } |
| |
| o.propertyName = args[0] |
| return nil |
| } |
| |
| func (o unsetOptions) validate() error { |
| if len(o.propertyName) == 0 { |
| return errors.New("you must specify a property") |
| } |
| |
| return nil |
| } |