enable ssh compression, and remove sudo

blocksync.py

@@ -4,15 +4,17 @@ Synchronise block devices over the network
 
 Copyright 2006-2008 Justin Azoff <justin@bouncybouncy.net>
 Copyright 2011 Robert Coup <robert@coup.net.nz>
+Copyright 2012 Daniel Berteaud <daniel@firewal-services.com>
 License: GPL
 
 Getting started:
 
 * Copy blocksync.py to the home directory on the remote host
-* Make sure your remote user can either sudo or is root itself.
+* Make sure your remote user write in the dest block device.
+  (root or with sudo for example)
 * Make sure your local user can ssh to the remote host
 * Invoke:
-sudo python blocksync.py /dev/source user@remotehost /dev/dest
+blocksync /dev/source user@remotehost /dev/dest
 """
 
 import sys
@@ -62,7 +64,7 @@ def sync(srcdev, dsthost, dstdev=None, blocksize=1024 * 1024):
         dstdev = srcdev
 
     print "Block size is %0.1f MB" % (float(blocksize) / (1024 * 1024))
-    cmd = ['ssh', '-c', 'blowfish', dsthost, 'sudo', 'python', 'blocksync.py', 'server', dstdev, '-b', str(blocksize)]
+    cmd = ['ssh', '-C', dsthost, 'blocksync', 'server', dstdev, '-b', str(blocksize)]
     print "Running: %s" % " ".join(cmd)
 
     p = subprocess.Popen(cmd, bufsize=0, stdin=subprocess.PIPE, stdout=subprocess.PIPE, close_fds=True)