dactyl_build.py 文件源码

def watch(mode, target, only_page="", pdf_file=DEFAULT_PDF_FILE,
          es_upload=NO_ES_UP):
    """Look for changed files and re-run the build whenever there's an update.
       Runs until interrupted."""
    target = get_target(target)

    class UpdaterHandler(PatternMatchingEventHandler):
        """Updates to pattern-matched files means rendering."""
        def on_any_event(self, event):
            logger.info("got event!")
            # bypass_errors=True because Watch shouldn't
            #  just die if a file is temporarily not found
            if mode == "pdf":
                make_pdf(pdf_file, target=target, bypass_errors=True,
                    only_page=only_page, es_upload=es_upload)
            else:
                render_pages(target, mode=mode, bypass_errors=True,
                            only_page=only_page, es_upload=es_upload)
            logger.info("done rendering")

    patterns = ["*template-*.html",
                "*.md",
                "*code_samples/*"]

    event_handler = UpdaterHandler(patterns=patterns)
    observer = Observer()
    observer.schedule(event_handler, config["template_path"], recursive=True)
    observer.schedule(event_handler, config["content_path"], recursive=True)
    observer.start()
    # The above starts an observing thread,
    #   so the main thread can just wait
    try:
        while True:
            time.sleep(1)
    except KeyboardInterrupt:
        observer.stop()
    observer.join()