Add flag to ignore charts where no repo was found

This new flag ('--ignore-repo') provides the functionality to allow the
user to continue using the 'outdated' Command even when no Repo was
found which holds the specific Chart.

Signed-off-by: Emanuel Bennici <eb@fabmation.de>

cmd/helm/outdated.go

@@ -38,6 +38,8 @@ By default, the output is printed in a Table but you can change this behavior
 with the '--output' Flag.
 `
 
+var ignoreNoRepo bool = false
+
 func newOutdatedCmd(cfg *action.Configuration, out io.Writer) *cobra.Command {
 	client := action.NewList(cfg)
 	var outfmt output.Format
@@ -80,6 +82,7 @@ func newOutdatedCmd(cfg *action.Configuration, out io.Writer) *cobra.Command {
 	flags.BoolVar(&client.Uninstalling, "uninstalling", false, "show releases that are currently being uninstalled")
 	flags.BoolVar(&client.Deployed, "deployed", false, "show deployed releases. If no other is specified, this will be automatically enabled")
 	flags.BoolVar(&client.Failed, "failed", false, "show failed releases")
+	flags.BoolVar(&ignoreNoRepo, "ignore-repo", false, "ignore error if no repo for a chart is found")
 	flags.BoolVar(&client.Pending, "pending", false, "show pending releases")
 	flags.BoolVarP(&client.AllNamespaces, "all-namespaces", "A", false, "list releases across all namespaces")
 	flags.IntVarP(&client.Limit, "max", "m", 256, "maximum number of releases to fetch")
@@ -129,8 +132,13 @@ func newOutdatedListWriter(releases []*release.Release, cfg *action.Configuratio
 		// search if it exists a newer Chart in the Chart-Repository
 		repoResult, err := searchChart(results, r.Chart.Name(), r.Chart.Metadata.Version, devel)
 		if err != nil {
+			if !ignoreNoRepo {
 				fmt.Fprintf(out, "%s", errors.Wrap(err, "ERROR: Could not initialize search index").Error())
 				os.Exit(1)
+			} else {
+				fmt.Fprintf(out, "WARNING: No Repo was found which containing the Chart '%s' (skipping)\n", r.Chart.Name())
+				continue
+			}
 		}
 
 		// skip if no newer Chart was found