Re: Combining Guix, direnv and Emacs for environment customisation

[ludo@gnu.org (Ludovic Courtès)]

Carlo Zancanaro <carlo@zancanaro.id.au> skribis:

> On Tue, Aug 29 2017, David wrote:
>> There is a feature missing in 'guix environment': saving the resulting
>> profile for easy access later.  I often want to build an environment
>> once and not update it for awhile, but with the current state of 'guix
>> environment' it's not possible. This leads me to pulling my hair out
>> when I do an upgrade of Guix and have to rebuild all of my development
>> environments. What was supposed to be a quick hack turns into a Guix
>> maintenance session.
>
> I also got frustrated by this when trying to keep my own checkout of
> guix. Then I found out you can do this:
>
>   guix environment guix --root=environment
>
> This puts a link to the environment under `environment` in the local
> directory. Then you can run `source environment/etc/profile; make` to
> rebuild guix. This also protects the environment from garbage
> collection, which was the actual problem I was trying to solve.

It surely helps, but I think it would be even better if ‘guix
environment’ would directly include a way to reload the environment in
its UI, like Dave was suggesting.

Maybe it’s just a matter of adding a --reload option that does what you
wrote above for you?

Ludo’.