github.com/codefresh-io/kcfi@v0.0.0-20230301195427-c1578715cc46/cmd/kcfi/repo_list.go (about) 1 /* 2 Copyright The Helm Authors. 3 4 Licensed under the Apache License, Version 2.0 (the "License"); 5 you may not use this file except in compliance with the License. 6 You may obtain a copy of the License at 7 8 http://www.apache.org/licenses/LICENSE-2.0 9 10 Unless required by applicable law or agreed to in writing, software 11 distributed under the License is distributed on an "AS IS" BASIS, 12 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 See the License for the specific language governing permissions and 14 limitations under the License. 15 */ 16 17 package main 18 19 import ( 20 "io" 21 "strings" 22 23 "github.com/gosuri/uitable" 24 "github.com/pkg/errors" 25 "github.com/spf13/cobra" 26 27 "helm.sh/helm/v3/cmd/helm/require" 28 "helm.sh/helm/v3/pkg/cli/output" 29 "helm.sh/helm/v3/pkg/repo" 30 ) 31 32 func newRepoListCmd(out io.Writer) *cobra.Command { 33 var outfmt output.Format 34 cmd := &cobra.Command{ 35 Use: "list", 36 Aliases: []string{"ls"}, 37 Short: "list chart repositories", 38 Args: require.NoArgs, 39 RunE: func(cmd *cobra.Command, args []string) error { 40 f, err := repo.LoadFile(settings.RepositoryConfig) 41 if isNotExist(err) || len(f.Repositories) == 0 { 42 return errors.New("no repositories to show") 43 } 44 45 return outfmt.Write(out, &repoListWriter{f.Repositories}) 46 }, 47 } 48 49 bindOutputFlag(cmd, &outfmt) 50 51 return cmd 52 } 53 54 type repositoryElement struct { 55 Name string `json:"name"` 56 URL string `json:"url"` 57 } 58 59 type repoListWriter struct { 60 repos []*repo.Entry 61 } 62 63 func (r *repoListWriter) WriteTable(out io.Writer) error { 64 table := uitable.New() 65 table.AddRow("NAME", "URL") 66 for _, re := range r.repos { 67 table.AddRow(re.Name, re.URL) 68 } 69 return output.EncodeTable(out, table) 70 } 71 72 func (r *repoListWriter) WriteJSON(out io.Writer) error { 73 return r.encodeByFormat(out, output.JSON) 74 } 75 76 func (r *repoListWriter) WriteYAML(out io.Writer) error { 77 return r.encodeByFormat(out, output.YAML) 78 } 79 80 func (r *repoListWriter) encodeByFormat(out io.Writer, format output.Format) error { 81 // Initialize the array so no results returns an empty array instead of null 82 repolist := make([]repositoryElement, 0, len(r.repos)) 83 84 for _, re := range r.repos { 85 repolist = append(repolist, repositoryElement{Name: re.Name, URL: re.URL}) 86 } 87 88 switch format { 89 case output.JSON: 90 return output.EncodeJSON(out, repolist) 91 case output.YAML: 92 return output.EncodeYAML(out, repolist) 93 } 94 95 // Because this is a non-exported function and only called internally by 96 // WriteJSON and WriteYAML, we shouldn't get invalid types 97 return nil 98 } 99 100 // Returns all repos from repos, except those with names matching ignoredRepoNames 101 // Inspired by https://stackoverflow.com/a/28701031/893211 102 func filterRepos(repos []*repo.Entry, ignoredRepoNames []string) []*repo.Entry { 103 // if ignoredRepoNames is nil, just return repo 104 if ignoredRepoNames == nil { 105 return repos 106 } 107 108 filteredRepos := make([]*repo.Entry, 0) 109 110 ignored := make(map[string]bool, len(ignoredRepoNames)) 111 for _, repoName := range ignoredRepoNames { 112 ignored[repoName] = true 113 } 114 115 for _, repo := range repos { 116 if _, removed := ignored[repo.Name]; !removed { 117 filteredRepos = append(filteredRepos, repo) 118 } 119 } 120 121 return filteredRepos 122 } 123 124 // Provide dynamic auto-completion for repo names 125 func compListRepos(prefix string, ignoredRepoNames []string) []string { 126 var rNames []string 127 128 f, err := repo.LoadFile(settings.RepositoryConfig) 129 if err == nil && len(f.Repositories) > 0 { 130 filteredRepos := filterRepos(f.Repositories, ignoredRepoNames) 131 for _, repo := range filteredRepos { 132 if strings.HasPrefix(repo.Name, prefix) { 133 rNames = append(rNames, repo.Name) 134 } 135 } 136 } 137 return rNames 138 }