From: Drew DeVault <drew@ddevault.org>
Date: Sun, 06 Jul 2025 10:46:01 GMT
Subject: Re: [PATCH v2 1/2] pretty: add X-Change-ID to mail formats
Message-ID: <DB4WU136IYR2.3ELSGQUDD6QI8@ddevault.org>
In-Reply-To: <20250706033710.GD3041790@coredump.intra.peff.net>

On Sun Jul 6, 2025 at 5:37 AM CEST, Jeff King wrote:
> I don't have any opinion on the feature itself, but the plumbing way to
> do it would perhaps be:
>
>   # make some vanilla commit...
>   git commit -m foo &&
>
>   # make a new variant with the change id
>   commit=$(
>     git cat-file commit HEAD |
>     perl -lpe 'print "change-id foo" unless length' |
>     git hash-object -w --stdin -t commit
>   ) &&
>
>   # replace the old one
>   git update-ref HEAD $commit

Thanks! I'll incorporate this into the tests in the next patch version
after some further discussion.