Re: [PATCH v5 07/10] introduce fetch-object: fetch one promisor object

[Christian Couder <christian.couder@gmail.com>]

On Tue, Nov 21, 2017 at 10:07 PM, Jeff Hostetler <git@jeffhostetler.com> wrote:
> From: Jonathan Tan <jonathantanmy@google.com>

> +void fetch_object(const char *remote_name, const unsigned char *sha1)
> +{
> +       struct remote *remote;
> +       struct transport *transport;
> +       struct ref *ref;
> +
> +       remote = remote_get(remote_name);
> +       if (!remote->url[0])
> +               die(_("Remote with no URL"));
> +       transport = transport_get(remote, remote->url[0]);
> +
> +       ref = alloc_ref(sha1_to_hex(sha1));
> +       hashcpy(ref->old_oid.hash, sha1);
> +       transport_set_option(transport, TRANS_OPT_FROM_PROMISOR, "1");
> +       transport_set_option(transport, TRANS_OPT_NO_HAVES, "1");
> +       transport_fetch_refs(transport, ref);
> +}

I think it would be interesting to return what transport_fetch_refs()
returns, so that a caller could know if an error happened.