Method _watch_glob

django/utils/autoreload.py:530–554

Watch a directory with a specific glob. If the directory doesn't yet exist, attempt to watch the parent directory and amend the patterns to include this. It's important this method isn't called more than one per directory when updating all subscriptions. Subsequent c

(self, directory, patterns)

        self._subscribe(directory, "%s:%s" % (prefix, directory), expression)

    def _watch_glob(self, directory, patterns):
        """
        Watch a directory with a specific glob. If the directory doesn't yet
        exist, attempt to watch the parent directory and amend the patterns to
        include this. It's important this method isn't called more than one per
        directory when updating all subscriptions. Subsequent calls will
        overwrite the named subscription, so it must include all possible glob
        expressions.
        """
        prefix = "glob"
        if not directory.exists():
            if not directory.parent.exists():
                logger.warning(
                    "Unable to watch directory %s as neither it or its parent exist.",
                    directory,
                )
                return
            prefix = "glob-parent-%s" % directory.name
            patterns = ["%s/%s" % (directory.name, pattern) for pattern in patterns]
            directory = directory.parent

        expression = ["anyof"]
        for pattern in patterns:
            expression.append(["match", pattern, "wholename"])
        self._subscribe(directory, "%s:%s" % (prefix, directory), expression)

    def watched_roots(self, watched_files):
        extra_directories = self.directory_globs.keys()