Daemon to sync current dir contents with remote

syncer.py

# -*- coding: utf-8 -*-

"""
A daemon that monitors files mtimes and automaticaly syncs it
with remote if files have changed.

How to use:
~~~~~~~~~~~

1. $ python syncer.py
2. Ctrl+Z               # get back the shell
3. $ bg                 # run it in background
"""

import os
import signal
import sys
import time


SLEEP = 3   # seconds
PATH = '.'  # directory to monitor


def get_mtime_map(path=PATH):
    flist = []
    for root, dirs, files in os.walk(top=path):
        for d in dirs:
            path = os.path.join(root, d)
            mtime = os.path.getmtime(path)
            flist.append((path, mtime))
        for f in files:
            path = os.path.join(root, f)
            mtime = os.path.getmtime(path)
            flist.append((path, mtime))

    return dict(flist)


def main():
    while True:
        history = get_mtime_map()
        time.sleep(SLEEP)

        if get_mtime_map() != history:
            # rsync is used in :sync target
            # avoids printing stdout
            os.system('make sync > /dev/null')


if __name__ == '__main__':
    signal.signal(signal.SIGINT, lambda signal, frame: sys.exit(0))
    main()