From 30ba97fce4b670314d5e88974510a745d6776842 Mon Sep 17 00:00:00 2001
From: Ruslan Kuprieiev <kupruser@gmail.com>
Date: Tue, 20 Mar 2018 07:48:20 +0200
Subject: [PATCH] checkout: don't print 'cache not found' if cache is None

Fixes #579

Signed-off-by: Ruslan Kuprieiev <kupruser@gmail.com>
---
 dvc/output.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/dvc/output.py b/dvc/output.py
index 342bed3b6..39a0d08a5 100644
--- a/dvc/output.py
+++ b/dvc/output.py
@@ -287,7 +287,8 @@ class Output(Dependency):
             return
 
         if not self.cache or not os.path.exists(self.cache):
-            self.project.logger.warn(u'\'{}\': cache file not found'.format(self.rel_path))
+            if self.cache:
+                self.project.logger.warn(u'\'{}({})\': cache file not found'.format(self.rel_cache, self.rel_path))
             self.remove()
             return