Re: [PATCH 8/9] repack: implement `--filter-to` for storing filtered out objects

> diff --git a/Documentation/git-repack.txt b/Documentation/git-repack.txt
> index aa29c7e648..070dd22610 100644
> --- a/Documentation/git-repack.txt
> +++ b/Documentation/git-repack.txt
> @@ -148,6 +148,12 @@ depth is 4095.
>  	resulting packfile and put them into a separate packfile. See
>  	linkgit:git-rev-list[1] for valid `<filter-spec>` forms.
>
> +--filter-to=<dir>::
> +	Write the pack containing filtered out objects to the
> +	directory `<dir>`. This can be used for putting the pack on a
> +	separate object directory that is accessed through the Git
> +	alternates mechanism. Only useful with `--filter`.

> @@ -1073,8 +1077,11 @@ int cmd_repack(int argc, const char **argv, const char *prefix)
>  		strvec_push(&cmd.args, "--incremental");
>  	}
>
> -	if (po_args.filter)
> -		prepare_pack_filtered_cmd(&pack_filtered_cmd, &po_args, packtmp);
> +	if (po_args.filter) {
> +		if (!filter_to)
> +			filter_to = packtmp;
> +		prepare_pack_filtered_cmd(&pack_filtered_cmd, &po_args, filter_to);
> +	}