linux-kernel - Re: email as a bona fide git transport

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Message-ID: <20191018015447.GB6446@chatter.i7.local>
Date:   Thu, 17 Oct 2019 21:54:47 -0400
From:   Konstantin Ryabitsev <konstantin@...uxfoundation.org>
To:     Greg KH <greg@...ah.com>
Cc:     Santiago Torres Arias <santiago@....edu>, Willy Tarreau <w@....eu>,
        Vegard Nossum <vegard.nossum@...cle.com>,
        workflows@...r.kernel.org, Git Mailing List <git@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>, Eric Wong <e@...24.org>
Subject: Re: email as a bona fide git transport

On Thu, Oct 17, 2019 at 06:30:29PM -0700, Greg KH wrote:
>> It could only possibly work if nobody ever adds their own 
>> "Signed-Off-By" or
>> any other bylines. I expect this is a deal-breaker for most maintainers.
>
>Yeah it is :(
>
>But, if we could just have the signature on the code change, not the
>changelog text, that would help with that issue.

We totally should, and I even mused on how we would do that here:
https://public-inbox.org/git/20190910121324.GA6867@pure.paranoia.local/

However, since git's PGP signatures are made for the content in the 
actual commit record (tree hash, parent, author, commit message, etc), 
the only way we could preserve them between the email and the git tree 
is if we never modify any of that data. The SOB and other trailers would 
have to only be applied to the merge commit, or migrate into commit 
notes.

-K