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Re: Emacs interface for Guix

From: Ludovic Courtès
Subject: Re: Emacs interface for Guix
Date: Fri, 22 Aug 2014 10:56:39 +0200
User-agent: Gnus/5.130011 (Ma Gnus v0.11) Emacs/24.3 (gnu/linux)

Alex Kost <address@hidden> skribis:

> Thanks, now (with the latest “guix pull”), installing/upgrading/removing
> should work in "guix.el".  If you (or someone else) wish to try it, you
> may use:
>   (setq guix-dry-run t)
> (It has the same meaning as “--dry-run” option).

I gave it a try, but AFAICS, when the REPL is started as “internal”,
guix-main.scm isn’t loaded, and thus “Install” fails:

--8<---------------cut here---------------start------------->8---
scheme@(guile-user)> (process-package-actions #:install '((58935712 "out")) 
#:upgrade '() #:remove '() #:use-substitutes? #t #:dry-run? #f)
;;; <stdin>:11:0: warning: possibly unbound variable `process-package-actions'
<unnamed port>:11:0: In procedure #<procedure 42ba0c0 at <current input>:11:0 
<unnamed port>:11:0: In procedure module-lookup: Unbound variable: 
--8<---------------cut here---------------end--------------->8---

Did I miss something?

Besides, I like M-x guix-generations, pretty cool.  :-)

> Also I would like to add support for deleting generations (to
> "guix.el"), so I think it would be good to export ‘delete-generation’
> from "scripts/package.scm".  WDYT?

Yes, that makes sense, one could use it from the *Guix Generation List*

Regarding package installation/removal/upgrade, I think it would be
great UI-wise to support transactions that perform multiple operations.

I was initially thinking of something similar to what package.el does:
marks packages from installation/removal, and then hit ‘x’ to execute
the transaction.  So the current “Install” and “Delete” buttons could be
changed to just mark things for installation/removal.



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