Method respond

invoke/runners.py:932–957

Write to the program's stdin in response to patterns in ``buffer_``. The patterns and responses are driven by the `.StreamWatcher` instances from the ``watchers`` kwarg of `run` - see :doc:`/concepts/watchers` for a conceptual overview. :param buffer:

(self, buffer_: List[str])

        return (not self.using_pty) and isatty(input_)

    def respond(self, buffer_: List[str]) -> None:
        """
        Write to the program's stdin in response to patterns in ``buffer_``.

        The patterns and responses are driven by the `.StreamWatcher` instances
        from the ``watchers`` kwarg of `run` - see :doc:`/concepts/watchers`
        for a conceptual overview.

        :param buffer:
            The capture buffer for this thread's particular IO stream.

        :returns: ``None``.

        .. versionadded:: 1.0
        """
        # Join buffer contents into a single string; without this,
        # StreamWatcher subclasses can't do things like iteratively scan for
        # pattern matches.
        # NOTE: using string.join should be "efficient enough" for now, re:
        # speed and memory use. Should that become false, consider using
        # StringIO or cStringIO (tho the latter doesn't do Unicode well?) which
        # is apparently even more efficient.
        stream = "".join(buffer_)
        for watcher in self.watchers:
            for response in watcher.submit(stream):
                self.write_proc_stdin(response)

    def generate_env(
        self, env: Dict[str, Any], replace_env: bool