GNU bug report logs - #58506
Use ".dir-locals.eld" and ".dir-locals-2.eld" when they exist

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From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: Stefan Kangas <stefankangas <at> gmail.com>
Cc: 58506 <at> debbugs.gnu.org, Philip Kaludercic <philipk <at> posteo.net>, Stefan Monnier <monnier <at> iro.umontreal.ca>, Juri Linkov <juri <at> linkov.net>
Subject: bug#58506: Use ".dir-locals.eld" and ".dir-locals-2.eld" when they exist
Date: Fri, 14 Oct 2022 13:25:22 +0200

Stefan Kangas <stefankangas <at> gmail.com> writes:

> So how about doing something like the below, as a future compatibility
> patch?  Then, in some undefined future version, we can consider creating
> ".dir-locals.eld" files by default, instead.

It sort of makes sense to me, but if we're doing a name change, I'd
rather make it a functional change, too.

It's been pointed out many times that the .dir-locals.el file format is
bad -- it's not extensible, and many things have been proposed for extra
functionality that's impossible to add today.

(For instance -- variables set before the major mode happens, and adding
to list variables.)

So if we introduce .dir-locals.eld, we should take the opportunity to
add a brand new, sensible, extensible syntax, too.

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