Allow passing the chart repo to helm template (#268)

Resolves #277

Author: aackerman

cmd/helm3.go

@@ -92,6 +92,9 @@ func (d *diffCmd) template(isUpgrade bool) ([]byte, error) {
 	if d.chartVersion != "" {
 		flags = append(flags, "--version", d.chartVersion)
 	}
+	if d.chartRepo != "" {
+		flags = append(flags, "--repo", d.chartRepo)
+	}
 	if d.namespace != "" {
 		flags = append(flags, "--namespace", d.namespace)
 	}

cmd/upgrade.go

@@ -17,6 +17,7 @@ type diffCmd struct {
 	release                  string
 	chart                    string
 	chartVersion             string
+	chartRepo                string
 	client                   helm.Interface
 	detailedExitCode         bool
 	devel                    bool
@@ -96,6 +97,7 @@ func newChartCommand() *cobra.Command {
 	var kubeconfig string
 	f.StringVar(&kubeconfig, "kubeconfig", "", "This flag is ignored, to allow passing of this top level flag to helm")
 	f.StringVar(&diff.chartVersion, "version", "", "specify the exact chart version to use. If this is not specified, the latest version is used")
+	f.StringVar(&diff.chartRepo, "repo", "", "specify the chart repository url to locate the requested chart")
 	f.BoolVar(&diff.detailedExitCode, "detailed-exitcode", false, "return a non-zero exit code when there are changes")
 	f.BoolP("suppress-secrets", "q", false, "suppress secrets in the output")
 	f.BoolVar(&diff.showSecrets, "show-secrets", false, "do not redact secret values in the output")