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95 lines
2.4 KiB
95 lines
2.4 KiB
/*
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Copyright 2016 The Kubernetes Authors All rights reserved.
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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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"errors"
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"fmt"
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"io"
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"sync"
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"github.com/spf13/cobra"
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"k8s.io/helm/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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type updateCmd struct {
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repoFile string
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update func(map[string]string, bool, io.Writer)
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out io.Writer
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}
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func newUpdateCmd(out io.Writer) *cobra.Command {
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u := &updateCmd{
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out: out,
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update: updateCharts,
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repoFile: repositoriesFile(),
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}
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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 on available charts in the chart repositories",
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Long: updateDesc,
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RunE: func(cmd *cobra.Command, args []string) error {
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return u.run()
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},
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}
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return cmd
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}
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func (u *updateCmd) run() error {
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f, err := repo.LoadRepositoriesFile(u.repoFile)
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if err != nil {
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return err
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}
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if len(f.Repositories) == 0 {
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return errors.New("no repositories found. You must add one before updating")
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}
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u.update(f.Repositories, flagDebug, u.out)
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return nil
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}
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func updateCharts(repos map[string]string, verbose bool, 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 name, url := range repos {
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wg.Add(1)
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go func(n, u string) {
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defer wg.Done()
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err := repo.DownloadIndexFile(n, u, cacheIndexFile(n))
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if err != nil {
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updateErr := fmt.Sprintf("...Unable to get an update from the %q chart repository", n)
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if verbose {
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updateErr = updateErr + ": " + err.Error()
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}
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fmt.Fprintln(out, updateErr)
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} else {
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fmt.Fprintf(out, "...Successfully got an update from the %q chart repository\n", n)
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}
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}(name, url)
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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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