from os import environ
from subprocess import Popen
from shlex import split as shplit

# Remote syncing, when needed

def sync():
    """ Remote syncing """
    DEST = environ.get('DEST')
    REMOTE_HOST = environ.get('REMOTE_HOST', False)
    if REMOTE_HOST:
        REMOTE_USER = environ.get('REMOTE_USER')
        REMOTE_PASS = environ.get('REMOTE_PASS')
        print('Remote host %s configured : will sync with it' % REMOTE_HOST)
        command = ('sshpass -p %s rsync -av --delete -e '
                   '"ssh -p 23 -o StrictHostKeyChecking=no" '
                   '%s %s@%s:./backups') % (REMOTE_PASS, DEST, REMOTE_USER, REMOTE_HOST)
        Popen(shplit(command))