Re: [PATCH] check_everything_connected: assume alternate ref tips are valid

> When we receive a remote ref update to sha1 "X", we want to check that
> we have all of the objects needed by "X". We can assume that our
> repository is not currently corrupted, and therefore if we have a ref
> pointing at "Y", we have all of its objects. So we can stop our
> traversal from "X" as soon as we hit "Y".
>
> If we make the same non-corruption assumption about any repositories we
> use to store alternates, then we can also use their ref tips to shorten
> the traversal.
> ...
> diff --git a/connected.c b/connected.c
> index 1ab481fed6..cd9b324afa 100644
> --- a/connected.c
> +++ b/connected.c
> @@ -80,6 +80,7 @@ int check_connected(oid_iterate_fn fn, void *cb_data,
>  		argv_array_push(&rev_list.args, "--all");
>  	}
>  	argv_array_push(&rev_list.args, "--quiet");
> +	argv_array_push(&rev_list.args, "--alternate-refs");
>  	if (opt->progress)
>  		argv_array_pushf(&rev_list.args, "--progress=%s",
>  				 _("Checking connectivity"));