internal/helm: return callback on empty TLS config

...and no-op on empty valuesFile string.

controllers/helmchart_controller.go

@@ -296,9 +296,7 @@ func (r *HelmChartReconciler) reconcileFromHelmRepository(ctx context.Context,
 			err = fmt.Errorf("auth options error: %w", err)
 			return sourcev1.HelmChartNotReady(chart, sourcev1.AuthenticationFailedReason, err.Error()), err
 		}
-		if cleanup != nil {
-			defer cleanup()
-		}
+		defer cleanup()
 		clientOpts = opts
 	}
 
@@ -435,11 +433,9 @@ func (r *HelmChartReconciler) reconcileFromTarballArtifact(ctx context.Context,
 		return chart, nil
 	}
 
-	// Overwrite default values if instructed to
-	if chart.Spec.ValuesFile != "" {
-		if err := helm.OverwriteChartDefaultValues(chartPath, chart.Spec.ValuesFile); err != nil {
-			return sourcev1.HelmChartNotReady(chart, sourcev1.ChartPackageFailedReason, err.Error()), err
-		}
+	// Overwrite default values if configured
+	if err := helm.OverwriteChartDefaultValues(chartPath, chart.Spec.ValuesFile); err != nil {
+		return sourcev1.HelmChartNotReady(chart, sourcev1.ChartPackageFailedReason, err.Error()), err
 	}
 
 	// Ensure artifact directory exists

controllers/helmrepository_controller.go

@@ -195,9 +195,7 @@ func (r *HelmRepositoryReconciler) reconcile(ctx context.Context, repository sou
 			err = fmt.Errorf("auth options error: %w", err)
 			return sourcev1.HelmRepositoryNotReady(repository, sourcev1.AuthenticationFailedReason, err.Error()), err
 		}
-		if cleanup != nil {
-			defer cleanup()
-		}
+		defer cleanup()
 		clientOpts = opts
 	}
 

internal/helm/chart.go

@@ -28,7 +28,7 @@ import (
 // OverwriteChartDefaultValues overwrites the chart default values file in the
 // given chartPath with the contents of the given valuesFile.
 func OverwriteChartDefaultValues(chartPath, valuesFile string) error {
-	if valuesFile == chartutil.ValuesfileName {
+	if valuesFile == "" || valuesFile == chartutil.ValuesfileName {
 		return nil
 	}
 	srcPath := path.Join(chartPath, valuesFile)

internal/helm/getter.go

@@ -60,7 +60,7 @@ func TLSClientConfigFromSecret(secret corev1.Secret) (getter.Option, func(), err
 	certBytes, keyBytes, caBytes := secret.Data["certFile"], secret.Data["keyFile"], secret.Data["caFile"]
 	switch {
 	case len(certBytes)+len(keyBytes)+len(caBytes) == 0:
-		return nil, nil, nil
+		return nil, func() {}, nil
 	case (len(certBytes) > 0 && len(keyBytes) == 0) || (len(keyBytes) > 0 && len(certBytes) == 0):
 		return nil, nil, fmt.Errorf("invalid '%s' secret data: fields 'certFile' and 'keyFile' require each other's presence",
 			secret.Name)