action.py 文件源码

def _exec(self, cmd: str, fail_on_error: bool = False,
              error_message: str = "Failed executing {cmd!r}: out={out!r}, err={err!r}",
              timeout: int = 10) -> bool:
        """
        Execute the passed command.

        :param cmd:
        :param fail_on_error:
        :param error_message: error message format
        :param timeout: time in seconds after which the command is aborted
        :return: Was the command executed successfully?
        """
        out_mode = subprocess.PIPE if fail_on_error else subprocess.DEVNULL
        proc = subprocess.Popen(["/bin/sh", "-c", cmd], stdout=out_mode, stderr=out_mode,
                                universal_newlines=True)
        out, err = proc.communicate(timeout=timeout)
        if proc.wait() > 0:
            if fail_on_error:
                self._fail(error_message.format(cmd=cmd, out=out, err=err))
            else:
                return False
        return True