From 4236ffc8ebbca5280704a9bdb2bcabdccbce62bb Mon Sep 17 00:00:00 2001
From: Jack Pearkes <jackpearkes@gmail.com>
Date: Tue, 18 Jun 2013 00:06:59 +0200
Subject: [PATCH] builder/digitalocean: only execute the snapshotname template
 if parsed

---
 builder/digitalocean/builder.go | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/builder/digitalocean/builder.go b/builder/digitalocean/builder.go
index 447266090..29c1b9f9e 100644
--- a/builder/digitalocean/builder.go
+++ b/builder/digitalocean/builder.go
@@ -137,9 +137,10 @@ func (b *Builder) Prepare(raws ...interface{}) error {
 	t, err := template.New("snapshot").Parse(b.config.RawSnapshotName)
 	if err != nil {
 		errs = append(errs, fmt.Errorf("Failed parsing snapshot_name: %s", err))
+	} else {
+		t.Execute(snapNameBuf, tData)
+		b.config.SnapshotName = snapNameBuf.String()
 	}
-	t.Execute(snapNameBuf, tData)
-	b.config.SnapshotName = snapNameBuf.String()
 
 	if len(errs) > 0 {
 		return &packer.MultiError{errs}