File watchdog

watchdog-file.py

"""
File watchdog.

REQUIREMENT
    Watchdog Python package <http://packages.python.org/watchdog/>

USAGE
    python watchdog-file.py echo something changed. # Ctrl-C to stop.
    python watchdog-file.py "make test && make install"
"""

import sys
import time
import string
import subprocess
from watchdog.observers import Observer
from watchdog.events import FileSystemEventHandler

COMMAND_TO_RUN = ""


class FileEventHandler(FileSystemEventHandler):

    def on_any_event(self, event):
        if COMMAND_TO_RUN == "":
            command = string.join(sys.argv[1:])
        else:
            command = COMMAND_TO_RUN
        if event.__class__.__name__ == "DirModifiedEvent":
            pass
        else:
          subprocess.call(command, shell=True)

if __name__ == "__main__":
    observer = Observer()
    observer.schedule(FileEventHandler(), path='.', recursive=True)
    observer.start()
    try:
        while True:
            time.sleep(1)
    except KeyboardInterrupt:
        observer.stop()
    observer.join()