github.com/rakanixu/helm@v2.8.2+incompatible/cmd/helm/plugin_remove.go (about) 1 /* 2 Copyright 2016 The Kubernetes Authors All rights reserved. 3 Licensed under the Apache License, Version 2.0 (the "License"); 4 you may not use this file except in compliance with the License. 5 You may obtain a copy of the License at 6 7 http://www.apache.org/licenses/LICENSE-2.0 8 9 Unless required by applicable law or agreed to in writing, software 10 distributed under the License is distributed on an "AS IS" BASIS, 11 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 See the License for the specific language governing permissions and 13 limitations under the License. 14 */ 15 16 package main 17 18 import ( 19 "errors" 20 "fmt" 21 "io" 22 "os" 23 "strings" 24 25 "k8s.io/helm/pkg/helm/helmpath" 26 "k8s.io/helm/pkg/plugin" 27 28 "github.com/spf13/cobra" 29 ) 30 31 type pluginRemoveCmd struct { 32 names []string 33 home helmpath.Home 34 out io.Writer 35 } 36 37 func newPluginRemoveCmd(out io.Writer) *cobra.Command { 38 pcmd := &pluginRemoveCmd{out: out} 39 cmd := &cobra.Command{ 40 Use: "remove <plugin>...", 41 Short: "remove one or more Helm plugins", 42 PreRunE: func(cmd *cobra.Command, args []string) error { 43 return pcmd.complete(args) 44 }, 45 RunE: func(cmd *cobra.Command, args []string) error { 46 return pcmd.run() 47 }, 48 } 49 return cmd 50 } 51 52 func (pcmd *pluginRemoveCmd) complete(args []string) error { 53 if len(args) == 0 { 54 return errors.New("please provide plugin name to remove") 55 } 56 pcmd.names = args 57 pcmd.home = settings.Home 58 return nil 59 } 60 61 func (pcmd *pluginRemoveCmd) run() error { 62 debug("loading installed plugins from %s", settings.PluginDirs()) 63 plugins, err := findPlugins(settings.PluginDirs()) 64 if err != nil { 65 return err 66 } 67 var errorPlugins []string 68 for _, name := range pcmd.names { 69 if found := findPlugin(plugins, name); found != nil { 70 if err := removePlugin(found); err != nil { 71 errorPlugins = append(errorPlugins, fmt.Sprintf("Failed to remove plugin %s, got error (%v)", name, err)) 72 } else { 73 fmt.Fprintf(pcmd.out, "Removed plugin: %s\n", name) 74 } 75 } else { 76 errorPlugins = append(errorPlugins, fmt.Sprintf("Plugin: %s not found", name)) 77 } 78 } 79 if len(errorPlugins) > 0 { 80 return fmt.Errorf(strings.Join(errorPlugins, "\n")) 81 } 82 return nil 83 } 84 85 func removePlugin(p *plugin.Plugin) error { 86 if err := os.Remove(p.Dir); err != nil { 87 return err 88 } 89 return runHook(p, plugin.Delete) 90 } 91 92 func findPlugin(plugins []*plugin.Plugin, name string) *plugin.Plugin { 93 for _, p := range plugins { 94 if p.Metadata.Name == name { 95 return p 96 } 97 } 98 return nil 99 }