Re: [PATCH 1/3 v2] Add support for external programs for handling native fetches

> +static struct child_process *get_shim(struct transport *transport)
> +{
> +       struct shim_data *data = transport->data;
> +       if (!data->shim) {
> +               struct strbuf buf = STRBUF_INIT;
> +               struct child_process *shim = xcalloc(1, sizeof(*shim));
> +               shim->in = -1;
> +               shim->out = -1;
> +               shim->err = 0;
> +               shim->argv = xcalloc(4, sizeof(*shim->argv));
> +               strbuf_addf(&buf, "shim-%s", data->name);
> +               shim->argv[0] = buf.buf;
> +               shim->argv[1] = transport->remote->name;
> +               shim->argv[2] = transport->url;
> +               shim->git_cmd = 1;
> +               start_command(shim);
> +               data->shim = shim;
> +       }
> +       return data->shim;
> +}
> +
> +static int disconnect_shim(struct transport *transport)
> +{
> +       struct shim_data *data = transport->data;
> +       if (data->shim) {
> +               write(data->shim->in, "\n", 1);
> +               close(data->shim->in);
> +               finish_command(data->shim);
> +               free(data->shim->argv);

> +               free(data->shim);
> +               transport->data = NULL;
> +       }
> +       return 0;
> +}