github.com/sunilganatra/helm@v3.0.0-beta.3+incompatible/cmd/helm/plugin.go (about) 1 /* 2 Copyright The Helm Authors. 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 "io" 20 "os" 21 "os/exec" 22 23 "github.com/pkg/errors" 24 "github.com/spf13/cobra" 25 26 "helm.sh/helm/pkg/plugin" 27 ) 28 29 const pluginHelp = ` 30 Manage client-side Helm plugins. 31 ` 32 33 func newPluginCmd(out io.Writer) *cobra.Command { 34 cmd := &cobra.Command{ 35 Use: "plugin", 36 Short: "add, list, or remove Helm plugins", 37 Long: pluginHelp, 38 } 39 cmd.AddCommand( 40 newPluginInstallCmd(out), 41 newPluginListCmd(out), 42 newPluginRemoveCmd(out), 43 newPluginUpdateCmd(out), 44 ) 45 return cmd 46 } 47 48 // runHook will execute a plugin hook. 49 func runHook(p *plugin.Plugin, event string) error { 50 hook := p.Metadata.Hooks[event] 51 if hook == "" { 52 return nil 53 } 54 55 prog := exec.Command("sh", "-c", hook) 56 // TODO make this work on windows 57 // I think its ... ¯\_(ツ)_/¯ 58 // prog := exec.Command("cmd", "/C", p.Metadata.Hooks.Install()) 59 60 debug("running %s hook: %s", event, prog) 61 62 plugin.SetupPluginEnv(settings, p.Metadata.Name, p.Dir) 63 prog.Stdout, prog.Stderr = os.Stdout, os.Stderr 64 if err := prog.Run(); err != nil { 65 if eerr, ok := err.(*exec.ExitError); ok { 66 os.Stderr.Write(eerr.Stderr) 67 return errors.Errorf("plugin %s hook for %q exited with error", event, p.Metadata.Name) 68 } 69 return err 70 } 71 return nil 72 }