From: Junio C Hamano <gitster@pobox.com>
Date: Tue, 23 Oct 2018 00:32:30 GMT
Subject: Re: [PATCH v2] send-email: explicitly disable authentication
Message-ID: <xmqqd0s1tsdd.fsf@gitster-ct.c.googlers.com>
In-Reply-To: <20181022175248.3940-1-JPEWhacker@gmail.com>

Joshua Watt <jpewhacker@gmail.com> writes:

> It can be necessary to disable SMTP authentication by a mechanism other
> than sendemail.smtpuser being undefined. For example, if the user has
> sendemail.smtpuser set globally but wants to disable authentication
> locally in one repository.

I wonder if it would be more productive to introduce a mechanism
that can be used to address that use case more directly.  For
example, would it help to teach "git send-email" that
sendemail.smtpuser set to a particular value (say '!', or empty
string if you prefer) is equivalent to the variable unset at all?