packer: error if UI fails

198f984b · Mitchell Hashimoto · 4b665e39 · 198f984b
Commit 198f984b authored May 08, 2013 by Mitchell Hashimoto
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Showing with 8 additions and 2 deletions

packer/ui.go packer/ui.go +8 -2

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--- a/packer/ui.go
+++ b/packer/ui.go
@@ -19,9 +19,15 @@ type ReaderWriterUi struct {
 }
 func (rw *ReaderWriterUi) Say(format string, a ...interface{}) {
-	fmt.Fprintf(rw.Writer, format, a...)
+	_, err := fmt.Fprintf(rw.Writer, format, a...)
+	if err != nil {
+		panic(err)
+	}
 }
 func (rw *ReaderWriterUi) Error(format string, a ...interface{}) {
-	fmt.Fprintf(rw.Writer, format, a...)
+	_, err := fmt.Fprintf(rw.Writer, format, a...)
+	if err != nil {
+		panic(err)
+	}
 }