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101 lines
2.7 KiB
101 lines
2.7 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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"sync"
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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/getter"
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"helm.sh/helm/v3/pkg/repo"
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)
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const updateDesc = `
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Update gets the latest information about charts from the respective chart repositories.
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Information is cached locally, where it is used by commands like 'helm search'.
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`
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var errNoRepositories = errors.New("no repositories found. You must add one before updating")
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type repoUpdateOptions struct {
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update func([]*repo.ChartRepository, io.Writer)
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repoFile string
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repoCache string
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}
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func newRepoUpdateCmd(out io.Writer) *cobra.Command {
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o := &repoUpdateOptions{update: updateCharts}
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cmd := &cobra.Command{
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Use: "update",
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Aliases: []string{"up"},
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Short: "update information of available charts locally from chart repositories",
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Long: updateDesc,
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Args: require.NoArgs,
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RunE: func(cmd *cobra.Command, args []string) error {
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o.repoFile = settings.RepositoryConfig
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o.repoCache = settings.RepositoryCache
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return o.run(out)
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},
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}
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return cmd
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}
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func (o *repoUpdateOptions) run(out io.Writer) error {
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f, err := repo.LoadFile(o.repoFile)
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if isNotExist(err) || len(f.Repositories) == 0 {
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return errNoRepositories
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}
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var repos []*repo.ChartRepository
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for _, cfg := range f.Repositories {
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r, err := repo.NewChartRepository(cfg, getter.All(settings))
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if err != nil {
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return err
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}
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if o.repoCache != "" {
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r.CachePath = o.repoCache
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}
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repos = append(repos, r)
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}
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o.update(repos, out)
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return nil
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}
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func updateCharts(repos []*repo.ChartRepository, out io.Writer) {
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fmt.Fprintln(out, "Hang tight while we grab the latest from your chart repositories...")
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var wg sync.WaitGroup
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for _, re := range repos {
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wg.Add(1)
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go func(re *repo.ChartRepository) {
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defer wg.Done()
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if _, err := re.DownloadIndexFile(); err != nil {
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fmt.Fprintf(out, "...Unable to get an update from the %q chart repository (%s):\n\t%s\n", re.Config.Name, re.Config.URL, err)
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} else {
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fmt.Fprintf(out, "...Successfully got an update from the %q chart repository\n", re.Config.Name)
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}
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}(re)
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}
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wg.Wait()
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fmt.Fprintln(out, "Update Complete. ⎈ Happy Helming!⎈ ")
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}
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