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: Sun, 17 Jun 2018 22:53:06 +0200
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To: Mark H Weaver <mhw@netris.org>
Cc: myglc2@gmail.com, 31841@debbugs.gnu.org, Ricardo Wurmus <ricardo.wurmus@mdc-berlin.de>

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 boo=
tstrapping
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 can =
run:

  $(make as-derivation)/bin/guix environment guix

This is just a first step, but I think =E2=80=9Cmake=E2=80=9D and =E2=80=9C=
make
as-derivation=E2=80=9D/=E2=80=9Cguix pull=E2=80=9D should converge because =
there=E2=80=99s clearly some
overlap.

Ludo=E2=80=99.