Re: Exec upload-pack on remote with what parameters to get direntries.

> Yes. At GitHub we actually have a custom endpoint which hooks up
> "cat-file --batch" with a format of the client's choosing. That's what
> (indirectly) feeds things like raw.github.com.
>
> I've been tempted to send it upstream, but it's pretty ugly, and does
> give the client a lot of power (for now, the placeholders you can use
> with cat-file are not that powerful, but if we start to unify with
> ref-filter, etc, then we run into situations like we had with
> %(describe) recently). Likewise, the v2 object-info endpoint _could_
> accept arbitrary format strings (it's the same idea, just with
> --batch-check instead of --batch).