To use "--delay-updates" for rsync for atomic sync

Sometime, the users noticed the images in download server have wrong
md5sum and cannot boot. It's possible it's a partial downloaded file,
caused by atomic rsyncing problem. This rsync command line option
will help it.

Change-Id: I9ef2344cd01594fb33080feaaa193714cb4a5570
Signed-off-by: JF Ding <jian-feng.ding@intel.com>

diff --git a/common/utils.py b/common/utils.py
index 0e3c468..70769f8 100644 (file)
--- a/common/utils.py
+++ b/common/utils.py
@@ -118,7 +118,7 @@ def sync(source, destination, remove=True):
 
     # Through rsync protocol
     if destination.startswith('rsync:'):
-        cmd = "rsync -av %s/ %s" % (source, destination)
+        cmd = "rsync -av --delay-updates %s/ %s" % (source, destination)
 
         try:
             ret_code = subprocess.call(cmd, shell = True)