if !useKube {
				err := sa.AddDefaultResources()
				if err != nil {
					return err
				}
			}

			// If files are provided, treat them (collectively) as a source.
			parseErrors := 0
			if len(readers) > 0 {
				if err = sa.AddReaderKubeSource(readers); err != nil {
					fmt.Fprintf(cmd.ErrOrStderr(), "Error(s) adding files: %v", err)