Function copier

cli/command/system/dial_stdio.go:75–88

(to halfWriteCloser, from halfReadCloser, debugDescription string)

}

func copier(to halfWriteCloser, from halfReadCloser, debugDescription string) error {
	defer func() {
		if err := from.CloseRead(); err != nil {
			logrus.Errorf("error while CloseRead (%s): %v", debugDescription, err)
		}
		if err := to.CloseWrite(); err != nil {
			logrus.Errorf("error while CloseWrite (%s): %v", debugDescription, err)
		}
	}()
	if _, err := io.Copy(to, from); err != nil {
		return fmt.Errorf("error while Copy (%s): %w", debugDescription, err)
	}
	return nil
}

type halfReadCloser interface {
	io.Reader