From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <guix-devel-bounces+larch=yhetil.org@gnu.org>
Received: from mp10.migadu.com ([2001:41d0:403:4789::])
	(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits))
	by ms9.migadu.com with LMTPS
	id gEFlOBgGAmU8XAEAG6o9tA:P1
	(envelope-from <guix-devel-bounces+larch=yhetil.org@gnu.org>)
	for <larch@yhetil.org>; Wed, 13 Sep 2023 20:57:29 +0200
Received: from aspmx1.migadu.com ([2001:41d0:403:4789::])
	(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits))
	by mp10.migadu.com with LMTPS
	id gEFlOBgGAmU8XAEAG6o9tA
	(envelope-from <guix-devel-bounces+larch=yhetil.org@gnu.org>)
	for <larch@yhetil.org>; Wed, 13 Sep 2023 20:57:28 +0200
Received: from lists.gnu.org (lists.gnu.org [209.51.188.17])
	(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
	(No client certificate requested)
	by aspmx1.migadu.com (Postfix) with ESMTPS id AD0F8392DD
	for <larch@yhetil.org>; Wed, 13 Sep 2023 20:57:28 +0200 (CEST)
Authentication-Results: aspmx1.migadu.com;
	dkim=pass header.d=debian.org header.s=1.vagrant.user header.b=JxOWGcWc;
	spf=pass (aspmx1.migadu.com: domain of "guix-devel-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="guix-devel-bounces+larch=yhetil.org@gnu.org";
	dmarc=none
ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=yhetil.org;
	s=key1; t=1694631448;
	h=from:from:sender:sender:reply-to:subject:subject:date:date:
	 message-id:message-id:to:to:cc:mime-version:mime-version:
	 content-type:content-type:in-reply-to:in-reply-to:
	 references:references:list-id:list-help:list-unsubscribe:
	 list-subscribe:list-post:dkim-signature;
	bh=qBv6/XHfOKmOwMYfV0twrwRasi6rYxz2SyuUGeXjhek=;
	b=D3fWJ0VhP3AlqOQqXxVLKLhUq+4z17NIvISf8a0LgeCpaTXok0SCP5fKpoojhQnbwb8JQ9
	1qdKP8r4mZizywgGEFOUSZAOzlygVR8kGR+1cBa8BkI32LCLPXQw3lZZSSWW2U5NxogoAo
	VgUKET1+zmFLp+/Eb6NjKimFDfz9oYo4vzUDrtq75jushJqdXd+uOn+9SAlMmzFmyZ99fO
	ocuOLZEzEJ9j1lhgWy9u8tW7IoGi4XNSgR0/ad+D+VDA3PvOWhy7882f/cbtbcc5W4rd9n
	H3PRNEhIEW8hL3hFozPDfLTvH/pxyY7xhSn4EkICPCjrJdRTO7sNIGfFujIxgg==
ARC-Authentication-Results: i=1;
	aspmx1.migadu.com;
	dkim=pass header.d=debian.org header.s=1.vagrant.user header.b=JxOWGcWc;
	spf=pass (aspmx1.migadu.com: domain of "guix-devel-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="guix-devel-bounces+larch=yhetil.org@gnu.org";
	dmarc=none
ARC-Seal: i=1; s=key1; d=yhetil.org; t=1694631448; a=rsa-sha256; cv=none;
	b=M4OL/J7q7vH5+IwPQOkdX6z1oAsmxoKvVX74GyOy4qiDW/NkKuFvx+F9Qb1eBPbyH+6Xlc
	OjU+qzeF5cjJWjZryXo80jUUH2eM56bmgGX9+bXrPhQ/haYp4SF7zyqgYyWybl/85WSYoF
	vXosnEYaxw17WTCss+qw/BXkGyfhwhp3M7zE/PTrxMEK3ACUNb/DFBfrwU3CcbaYwQoHzs
	ufomHTSIZT/3u3EEL0e8D+1VCUZdi8kTSzEGq56Yd03k641x19dwcIyh8iJZ3xuhzXTWqV
	bDn7h3HfIVdOAchnHgGV9z+YLptly94IlD+G3ANfiaiTTxWITPmIIRRuqJ3LGg==
Received: from localhost ([::1] helo=lists1p.gnu.org)
	by lists.gnu.org with esmtp (Exim 4.90_1)
	(envelope-from <guix-devel-bounces@gnu.org>)
	id 1qgV2u-0003W7-Q8; Wed, 13 Sep 2023 14:57:05 -0400
Received: from eggs.gnu.org ([2001:470:142:3::10])
 by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)
 (Exim 4.90_1) (envelope-from <vagrant@debian.org>)
 id 1qgV2q-0003T3-Ll
 for guix-devel@gnu.org; Wed, 13 Sep 2023 14:57:00 -0400
Received: from cascadia.aikidev.net ([173.255.214.101])
 by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)
 (Exim 4.90_1) (envelope-from <vagrant@debian.org>)
 id 1qgV2k-0005Hh-G1
 for guix-devel@gnu.org; Wed, 13 Sep 2023 14:57:00 -0400
Received: from localhost (unknown [IPv6:2600:3c01:e000:21:7:77:0:50])
 (Authenticated sender: vagrant@cascadia.debian.net)
 by cascadia.aikidev.net (Postfix) with ESMTPSA id 4389B1ADD3;
 Wed, 13 Sep 2023 11:56:48 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=debian.org;
 s=1.vagrant.user; t=1694631408;
 bh=g6nZyTpH1nxxxv7cXG1lf3dLfAiABX8z64WNSOJp2XA=;
 h=From:To:Subject:In-Reply-To:References:Date:From;
 b=JxOWGcWcsrm6hMLeJOUTBEERGHKXHYkwE6ARPlTTH7hcKw6SDa7cxUNzITuiud9sF
 3OwzqNXmKxlSWJ8dQFoHtBeLQWfRzCAToqNEyXsXHZF3P+Kone8BBfNiuWnD3CsUPV
 OWGAj3HZQsIDW9qTFnmKJ4V8le9AJOW3gnt8pigaiO21kRUWi0kWwOEot3WvDB+srL
 unBw313Qop4cQH1kRo0/8pxrQ3qtfUBzRDryZ9eNCcrPMvelWiPUpA4BxgJ9wwEFoN
 xL6V1KmAT6wD0qYCNdQj4fz3GPu4vTaPIZyQdDIby1NOVzsHGZgZbyrJaWEoBMj8rp
 +SiRie4CldnwQ==
From: Vagrant Cascadian <vagrant@debian.org>
To: Christopher Baines <mail@cbaines.net>, guix-devel@gnu.org
Subject: Re: Implementing the guix-dameon in Guile
In-Reply-To: <875y4et4up.fsf@cbaines.net>
References: <875y4et4up.fsf@cbaines.net>
Date: Wed, 13 Sep 2023 11:56:44 -0700
Message-ID: <87jzstj40j.fsf@wireframe>
MIME-Version: 1.0
Content-Type: multipart/signed; boundary="=-=-=";
 micalg=pgp-sha512; protocol="application/pgp-signature"
Received-SPF: none client-ip=173.255.214.101; envelope-from=vagrant@debian.org;
 helo=cascadia.aikidev.net
X-Spam_score_int: -20
X-Spam_score: -2.1
X-Spam_bar: --
X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1,
 DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001,
 T_SPF_TEMPERROR=0.01 autolearn=ham autolearn_force=no
X-Spam_action: no action
X-BeenThere: guix-devel@gnu.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: "Development of GNU Guix and the GNU System distribution."
 <guix-devel.gnu.org>
List-Unsubscribe: <https://lists.gnu.org/mailman/options/guix-devel>,
 <mailto:guix-devel-request@gnu.org?subject=unsubscribe>
List-Archive: <https://lists.gnu.org/archive/html/guix-devel>
List-Post: <mailto:guix-devel@gnu.org>
List-Help: <mailto:guix-devel-request@gnu.org?subject=help>
List-Subscribe: <https://lists.gnu.org/mailman/listinfo/guix-devel>,
 <mailto:guix-devel-request@gnu.org?subject=subscribe>
Errors-To: guix-devel-bounces+larch=yhetil.org@gnu.org
Sender: guix-devel-bounces+larch=yhetil.org@gnu.org
X-Migadu-Flow: FLOW_IN
X-Migadu-Country: US
X-Migadu-Scanner: mx1.migadu.com
X-Migadu-Spam-Score: -5.71
X-Spam-Score: -5.71
X-Migadu-Queue-Id: AD0F8392DD
X-TUID: 4vWQOeHhpDKw

--=-=-=
Content-Type: text/plain

On 2023-09-13, Christopher Baines wrote:
> I think this has been talked about for a while [1], but I want to make it
> happen. Currently the guix-daemon is still similar to the nix-daemon
> that it was forked from, and is implemented in C++. I think that a Guile
> implementation of the guix-daemon will simplify Guix and better support
> hacking on and around the daemon to add new features and move Guix
> forward.
>
> 1: https://git.savannah.gnu.org/cgit/guix/maintenance.git/tree/doc/ROADMAP.org#n71
...
> Let me know if you've got any comments or questions!

Sounds great!

My only real concern, as someone maintaining guix packages in Debian, is
to make sure that we do not break compatibility with being able to use
an older daemon, as Debian stable/bookworm is still at guix 1.4.x and it
would be nice to not have to force people to manually upgrade the daemon
(e.g. and even if a newer version lands in a future Debian stable
release, in general it will stuck using that version for some years as
well).

I have noticed occasional issues with the Debian packages of guix having
compatibility issues when newer versions of guile-git/libgit2,
guile-ssh/libssh2, etc. get introduced, and wonder if the same would
hold true of a daemon?

In Guix, by design you wouldn't really notice these sorts of problems as
it is always generally built with the current version, but Debian does
rely on ABI compatibility for package upgrades... I might be able to
keep better track of these types of issues in Debian, although various
guile-* modules that depend on C libraries seem to avoid the normal
detection mechanisms to trigger rebuilds in Debian.

That is a bit of a tangent, but it reminded me about that issue...


live well,
  vagrant

--=-=-=
Content-Type: application/pgp-signature; name="signature.asc"

-----BEGIN PGP SIGNATURE-----

iHUEARYKAB0WIQRlgHNhO/zFx+LkXUXcUY/If5cWqgUCZQIF7QAKCRDcUY/If5cW
qisXAQCoQFtT9pWj0yqTAfKfsTs2jNKqAhrPt7sUnA2rJSisWQEAu7mNlVCQ16p1
5at51DRjwgczy36a5HLab27y+UTSNgE=
=kMk9
-----END PGP SIGNATURE-----
--=-=-=--