github.com/sgoings/helm@v2.0.0-alpha.2.0.20170406211108-734e92851ac3+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 "fmt" 20 "io" 21 "os" 22 23 "k8s.io/helm/pkg/helm/helmpath" 24 "k8s.io/helm/pkg/plugin" 25 26 "github.com/spf13/cobra" 27 ) 28 29 type pluginRemoveCmd struct { 30 names []string 31 home helmpath.Home 32 out io.Writer 33 } 34 35 func newPluginRemoveCmd(out io.Writer) *cobra.Command { 36 pcmd := &pluginRemoveCmd{out: out} 37 cmd := &cobra.Command{ 38 Use: "remove <plugin>...", 39 Short: "remove one or more Helm plugins", 40 PreRunE: func(cmd *cobra.Command, args []string) error { 41 return pcmd.complete(args) 42 }, 43 RunE: func(cmd *cobra.Command, args []string) error { 44 return pcmd.run() 45 }, 46 } 47 return cmd 48 } 49 50 func (pcmd *pluginRemoveCmd) complete(args []string) error { 51 if err := checkArgsLength(len(args), "plugin"); err != nil { 52 return err 53 } 54 pcmd.names = args 55 pcmd.home = helmpath.Home(homePath()) 56 return nil 57 } 58 59 func (pcmd *pluginRemoveCmd) run() error { 60 plugdirs := pluginDirs(pcmd.home) 61 debug("loading installed plugins from %s", plugdirs) 62 plugins, err := findPlugins(plugdirs) 63 if err != nil { 64 return err 65 } 66 67 for _, name := range pcmd.names { 68 if found := findPlugin(plugins, name); found != nil { 69 if err := removePlugin(found, pcmd.home); err != nil { 70 return err 71 } 72 fmt.Fprintf(pcmd.out, "Removed plugin: %s\n", name) 73 } 74 } 75 return nil 76 } 77 78 func removePlugin(p *plugin.Plugin, home helmpath.Home) error { 79 if err := os.Remove(p.Dir); err != nil { 80 return err 81 } 82 return runHook(p, plugin.Delete, home) 83 } 84 85 func findPlugin(plugins []*plugin.Plugin, name string) *plugin.Plugin { 86 for _, p := range plugins { 87 if p.Metadata.Name == name { 88 return p 89 } 90 } 91 return nil 92 }