From: Derrick Stolee <stolee@gmail.com>
Date: Fri, 04 Dec 2020 20:06:24 GMT
Subject: Re: [PATCH 7/9] commit-graph: drop count_distinct_commits() function
Message-ID: <1103d97b-668f-8ad6-fc62-3fa09067a8bb@gmail.com>
In-Reply-To: <X8qGTaIdnNa5mAfC@coredump.intra.peff.net>

On 12/4/2020 1:56 PM, Jeff King wrote:
> That turns out not to be a problem, though. The only things we do with
> the count are:
> 
>   - check if our count will overflow our data structures. But the limit
>     there is 2^31 commits, so it's not likely to happen in practice.

You do point out that you are removing this logic, done in this
if statement:

> -	if (count_distinct >= GRAPH_EDGE_LAST_MASK) {
> -		error(_("the commit graph format cannot write %d commits"), count_distinct);
> -		res = -1;
> -		goto cleanup;
> -	}

What is the harm of keeping this? I know it is very unlikely, but
I'd rather fail here than write a commit-graph that gets parsed as
garbage.

Thanks,
-Stolee