From b5c33e1c8c662eb9a6fe780d855bfcb6a98c1769 Mon Sep 17 00:00:00 2001
From: Clayton Coleman <ccoleman@redhat.com>
Date: Tue, 13 Jan 2015 18:51:33 -0500
Subject: [PATCH] Prevent internal conversion in the printer directly (as per
 implicit contract)

---
 pkg/kubectl/resource_printer.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pkg/kubectl/resource_printer.go b/pkg/kubectl/resource_printer.go
index eaf9d74d599..c1a47a701d2 100644
--- a/pkg/kubectl/resource_printer.go
+++ b/pkg/kubectl/resource_printer.go
@@ -109,6 +109,9 @@ func NewVersionedPrinter(printer ResourcePrinter, convertor runtime.ObjectConver
 
 // PrintObj implements ResourcePrinter
 func (p *VersionedPrinter) PrintObj(obj runtime.Object, w io.Writer) error {
+	if len(p.version) == 0 {
+		return fmt.Errorf("no version specified, object cannot be converted")
+	}
 	converted, err := p.convertor.ConvertToVersion(obj, p.version)
 	if err != nil {
 		return err