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138 lines
3.6 KiB
138 lines
3.6 KiB
/*
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Copyright The Helm Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package main
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import (
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"fmt"
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"io"
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"github.com/gosuri/uitable"
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"github.com/pkg/errors"
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"github.com/spf13/cobra"
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"helm.sh/helm/v3/cmd/helm/require"
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"helm.sh/helm/v3/pkg/cli/output"
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"helm.sh/helm/v3/pkg/repo"
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)
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func newRepoListCmd(out io.Writer) *cobra.Command {
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var outfmt output.Format
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cmd := &cobra.Command{
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Use: "list",
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Aliases: []string{"ls"},
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Short: "list chart repositories",
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Args: require.NoArgs,
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ValidArgsFunction: noCompletions,
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RunE: func(cmd *cobra.Command, args []string) error {
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f, _ := repo.LoadFile(settings.RepositoryConfig)
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if len(f.Repositories) == 0 && !(outfmt == output.JSON || outfmt == output.YAML) {
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return errors.New("no repositories to show")
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}
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return outfmt.Write(out, &repoListWriter{f.Repositories})
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},
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}
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bindOutputFlag(cmd, &outfmt)
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return cmd
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}
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type repositoryElement struct {
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Name string `json:"name"`
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URL string `json:"url"`
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}
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type repoListWriter struct {
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repos []*repo.Entry
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}
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func (r *repoListWriter) WriteTable(out io.Writer) error {
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table := uitable.New()
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table.AddRow("NAME", "URL")
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for _, re := range r.repos {
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table.AddRow(re.Name, re.URL)
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}
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return output.EncodeTable(out, table)
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}
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func (r *repoListWriter) WriteJSON(out io.Writer) error {
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return r.encodeByFormat(out, output.JSON)
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}
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func (r *repoListWriter) WriteYAML(out io.Writer) error {
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return r.encodeByFormat(out, output.YAML)
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}
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func (r *repoListWriter) encodeByFormat(out io.Writer, format output.Format) error {
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// Initialize the array so no results returns an empty array instead of null
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repolist := make([]repositoryElement, 0, len(r.repos))
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for _, re := range r.repos {
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repolist = append(repolist, repositoryElement{Name: re.Name, URL: re.URL})
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}
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switch format {
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case output.JSON:
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return output.EncodeJSON(out, repolist)
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case output.YAML:
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return output.EncodeYAML(out, repolist)
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}
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// Because this is a non-exported function and only called internally by
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// WriteJSON and WriteYAML, we shouldn't get invalid types
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return nil
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}
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// Returns all repos from repos, except those with names matching ignoredRepoNames
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// Inspired by https://stackoverflow.com/a/28701031/893211
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func filterRepos(repos []*repo.Entry, ignoredRepoNames []string) []*repo.Entry {
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// if ignoredRepoNames is nil, just return repo
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if ignoredRepoNames == nil {
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return repos
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}
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filteredRepos := make([]*repo.Entry, 0)
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ignored := make(map[string]bool, len(ignoredRepoNames))
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for _, repoName := range ignoredRepoNames {
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ignored[repoName] = true
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}
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for _, repo := range repos {
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if _, removed := ignored[repo.Name]; !removed {
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filteredRepos = append(filteredRepos, repo)
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}
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}
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return filteredRepos
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}
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// Provide dynamic auto-completion for repo names
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func compListRepos(_ string, ignoredRepoNames []string) []string {
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var rNames []string
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f, err := repo.LoadFile(settings.RepositoryConfig)
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if err == nil && len(f.Repositories) > 0 {
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filteredRepos := filterRepos(f.Repositories, ignoredRepoNames)
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for _, repo := range filteredRepos {
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rNames = append(rNames, fmt.Sprintf("%s\t%s", repo.Name, repo.URL))
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}
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}
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return rNames
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}
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