#!/usr/bin/env python

import os
import sys
import time

filename = sys.argv[1]
file = open(filename, 'r')

st_results = os.stat(filename)
st_size = st_results[6]
file.seek(st_size)


lease = []
in_lease = False
while 1:
    where = file.tell()
    line = file.readline()
    if not line:
        time.sleep(1)
        file.seek(where)
    else:
        line = line.rstrip()
        if line.startswith('lease'):
            in_lease = True
            lease.append(line)
        elif in_lease and not line.startswith('}'):
            lease.append(line)
        elif line.startswith('}'):
            lease.append(line)
            print lease
            lease = []
            in_lease = False