From 9a5e14cbc51f3fd8484bac3d14f00fc12b85e281 Mon Sep 17 00:00:00 2001
From: Jan Provaznik <jprovazn@redhat.com>
Date: Mon, 16 Sep 2013 13:27:03 -0700
Subject: [PATCH] Check cached file size when downloading an url

In some cases cache-url fails when downloading an image and leaves
an empty cached file. qemu-img then fails with "Wrong medium type"
error on next run.

Change-Id: I23e91c52094f27248cf8452f192ad63646051190
---
 elements/cache-url/bin/cache-url | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/elements/cache-url/bin/cache-url b/elements/cache-url/bin/cache-url
index 8f29cc032..09ec48c90 100755
--- a/elements/cache-url/bin/cache-url
+++ b/elements/cache-url/bin/cache-url
@@ -27,7 +27,7 @@ dest=$2
 mkdir -p $(dirname $dest)
 tmp=$(mktemp $(dirname $dest)/.download.XXXXXXXX)
 
-if [ -f $dest ] ; then
+if [ -f $dest -a -s $dest ] ; then
     time_cond="-z $dest"
     success="Server copy has changed. Using server version of $url"
 else