用 watchdog 监听文件变化自动构建 / Auto build monitoring file change with watchdog

live_build.py

import time

import watchdog.events
import watchdog.observers


class Handler(watchdog.events.PatternMatchingEventHandler):
    def __init__(self):
        # Set the patterns for PatternMatchingEventHandler
        watchdog.events.PatternMatchingEventHandler.__init__(self, patterns=['*.rst'],
                                                             ignore_directories=True, case_sensitive=False)

    def on_created(self, event):
        print("Watchdog received created event - % s." % event.src_path)
        # Event is created, you can process it now
        self.re_build_doc()

    def on_modified(self, event):
        print("Watchdog received modified event - % s." % event.src_path)
        # Event is modified, you can process it now
        self.re_build_doc()

    def re_build_doc(self):
        import subprocess
        subprocess.getoutput('make html')


if __name__ == "__main__":
    src_path = r"."
    event_handler = Handler()
    observer = watchdog.observers.Observer()
    observer.schedule(event_handler, path=src_path, recursive=True)
    observer.start()
    print('Start auto build docs now ...')
    try:
        while True:
            time.sleep(1)
    except KeyboardInterrupt:
        observer.stop()
    observer.join()
    print('Stop auto build docs.')