From: Junio C Hamano <gitster@pobox.com>
Date: Fri, 14 Aug 2020 19:25:47 GMT
Subject: Re: [PATCH 0/3] SHA-256: Update commit-graph and multi-pack-index formats
Message-ID: <xmqqeeo9vxl0.fsf@gitster.c.googlers.com>
In-Reply-To: <pull.703.git.1597428440.gitgitgadget@gmail.com>

"Derrick Stolee via GitGitGadget" <gitgitgadget@gmail.com> writes:

> As discussed [1], there is some concern around binary file formats requiring
> the context of the repository config in order to infer hash lengths. Two
> formats that were designed with the hash transition in mind (commit-graph
> and multi-pack-index) have bytes available to indicate the hash algorithm
> used. Let's actually update these formats to be more self-contained with the
> two hash algorithms being available.
> ...
> If this is the way we want to go with the formats, then I'll assist
> coordinating these textual and semantic merge conflicts.

I agree that the files should be self-identifying, but have these
changes tested without sha256 hash?