Re: [PATCH v2 0/3] midx: use `--stdin-packs` to implement `repack`

> Here's a few patches that replace the existing "feed each OID
> one-by-one" approach to implement the `repack` sub-command of the
> `multi-pack-index` builtin with one that uses `pack-objects`'s
> `--stdin-packs` option.
> 
> There is an additional patch at the beginning of this series in order to
> extract the mtime-sorted list of packs to rollup from their home in
> `fill_included_packs_batch()`. There's also one more on the end to unify
> the `include_pack` array into the `repack_info` struct(s) themselves.