From df7ce26dc8022bc4a38481e9c9c0c8f29d62a5f0 Mon Sep 17 00:00:00 2001
From: Guillaume Jacquet <guillaume.jacquet@appdirect.com>
Date: Fri, 12 Aug 2016 13:12:12 -0400
Subject: [PATCH] Fix rake task when image has no repo tag

Make sure the rake task does not fail when an image does not have any
RepoTag (RepoTag is nil).
---
 lib/docker/rake_task.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/docker/rake_task.rb b/lib/docker/rake_task.rb
index 30e8836c1..b2fdcf816 100644
--- a/lib/docker/rake_task.rb
+++ b/lib/docker/rake_task.rb
@@ -11,7 +11,7 @@ def needed?
   private
 
   def has_repo_tag?
-    images.any? { |image| image.info['RepoTags'].include?(repo_tag) }
+    images.any? { |image| image.info['RepoTags'] && image.info['RepoTags'].include?(repo_tag) }
   end
 
   def images