From mboxrd@z Thu Jan  1 00:00:00 1970
From: ludo@gnu.org (Ludovic =?UTF-8?Q?Court=C3=A8s?=)
Subject: bug#31841: ./pre-inst-env guix system no longer works without
	~/.config/guix
Date: Wed, 20 Jun 2018 16:06:58 +0200
Message-ID: <87bmc5sgal.fsf@gnu.org>
References: <8736xopz0q.fsf@netris.org> <87bmccuwbu.fsf@mdc-berlin.de>
	<87o9gctgrm.fsf@gnu.org> <87po0snp5g.fsf@netris.org>
	<87602kro0h.fsf@gnu.org>
	<874li31wx7.fsf@g1.i-did-not-set--mail-host-address--so-tickle-me>
	<87sh5nqgtf.fsf@gnu.org> <87po0r3vsn.fsf@netris.org>
	<87wouxjft9.fsf@gnu.org>
	<87o9g6zot6.fsf@g1.i-did-not-set--mail-host-address--so-tickle-me>
Mime-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable
Return-path: <bug-guix-bounces+gcggb-bug-guix=m.gmane.org@gnu.org>
Received: from eggs.gnu.org ([2001:4830:134:3::10]:38703)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <Debian-debbugs@debbugs.gnu.org>) id 1fVdmJ-0006S0-OR
	for bug-guix@gnu.org; Wed, 20 Jun 2018 10:08:08 -0400
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <Debian-debbugs@debbugs.gnu.org>) id 1fVdmE-0004oa-3S
	for bug-guix@gnu.org; Wed, 20 Jun 2018 10:08:07 -0400
Received: from debbugs.gnu.org ([208.118.235.43]:49884)
	by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16)
	(Exim 4.71) (envelope-from <Debian-debbugs@debbugs.gnu.org>)
	id 1fVdmD-0004oW-Vb
	for bug-guix@gnu.org; Wed, 20 Jun 2018 10:08:02 -0400
Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2)
	(envelope-from <Debian-debbugs@debbugs.gnu.org>) id 1fVdmD-0000a9-Pe
	for bug-guix@gnu.org; Wed, 20 Jun 2018 10:08:01 -0400
Sender: "Debbugs-submit" <debbugs-submit-bounces@debbugs.gnu.org>
Resent-Message-ID: <handler.31841.B31841.15295036322183@debbugs.gnu.org>
In-Reply-To: <87o9g6zot6.fsf@g1.i-did-not-set--mail-host-address--so-tickle-me>
	(myglc2's message of "Tue, 19 Jun 2018 13:08:53 -0400")
List-Id: Bug reports for GNU Guix <bug-guix.gnu.org>
List-Unsubscribe: <https://lists.gnu.org/mailman/options/bug-guix>,
	<mailto:bug-guix-request@gnu.org?subject=unsubscribe>
List-Archive: <http://lists.gnu.org/archive/html/bug-guix/>
List-Post: <mailto:bug-guix@gnu.org>
List-Help: <mailto:bug-guix-request@gnu.org?subject=help>
List-Subscribe: <https://lists.gnu.org/mailman/listinfo/bug-guix>,
	<mailto:bug-guix-request@gnu.org?subject=subscribe>
Errors-To: bug-guix-bounces+gcggb-bug-guix=m.gmane.org@gnu.org
Sender: "bug-Guix" <bug-guix-bounces+gcggb-bug-guix=m.gmane.org@gnu.org>
To: myglc2@gmail.com
Cc: 31841@debbugs.gnu.org, Ricardo Wurmus <ricardo.wurmus@mdc-berlin.de>

Hello,

myglc2@gmail.com skribis:

> On 06/17/2018 at 22:53 Ludovic Court=C3=A8s writes:
>
>> Hello,
>>
>> Mark H Weaver <mhw@netris.org> skribis:
>>
>>> I should emphasize that when running Guix this way, if you wish to avoid
>>> running 'guix pull', it's important to always keep at least one
>>> known-good development environment for Guix saved as a GC root.  Toward
>>> that end, when I run "guix environment guix" to update my development
>>> environment profile, I make sure to preserve my previous profile as a GC
>>> root until I'm confident that my new profile is working.
>>
>> The =E2=80=9Cmake as-derivation=E2=80=9D command aims to help with this =
bootstrapping
>> problem: given an already installed Guix, it builds your checkout and
>> its dependencies like =E2=80=98guix pull=E2=80=99 would do.  Thus, you c=
an run:
>>
>>   $(make as-derivation)/bin/guix environment guix
>
> Nice! This is news to me. Thank you for pointing it out.
>
> Does 'make as-derivation' set the "current" symlink normally set by
> 'guix pull'?

Not at all; only =E2=80=98guix pull=E2=80=99 does.

Ludo=E2=80=99.