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=== Description (from pull-request) ===
Signed-off-by: Stéphane Graber <stgra...@ubuntu.com>
From b7bb882ff3aac6f79ef94652af7fef83f6d83411 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?St=C3=A9phane=20Graber?= <stgra...@ubuntu.com>
Date: Thu, 12 Dec 2019 12:12:40 -0500
Subject: [PATCH] shared/simplestreams: Only write cache if configured
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Signed-off-by: Stéphane Graber <stgra...@ubuntu.com>
---
 shared/simplestreams/simplestreams.go | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/shared/simplestreams/simplestreams.go 
b/shared/simplestreams/simplestreams.go
index 6f3a189542..11984de5ec 100644
--- a/shared/simplestreams/simplestreams.go
+++ b/shared/simplestreams/simplestreams.go
@@ -134,9 +134,11 @@ func (s *SimpleStreams) cachedDownload(path string) 
([]byte, error) {
        }
 
        // Attempt to store in cache
-       cacheName := filepath.Join(s.cachePath, fileName)
-       os.Remove(cacheName)
-       ioutil.WriteFile(cacheName, body, 0644)
+       if s.cachePath != "" {
+               cacheName := filepath.Join(s.cachePath, fileName)
+               os.Remove(cacheName)
+               ioutil.WriteFile(cacheName, body, 0644)
+       }
 
        return body, nil
 }
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