From mboxrd@z Thu Jan  1 00:00:00 1970
From: Leo Famulari <leo@famulari.name>
Subject: Re: How to remove old (test) builds from store?
Date: Thu, 2 Jun 2016 11:22:43 -0400
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To: Hartmut Goebel <h.goebel@crazy-compilers.com>
Cc: help-guix <help-guix@gnu.org>

On Thu, Jun 02, 2016 at 03:27:37PM +0200, Hartmut Goebel wrote:
> Am 02.06.2016 um 14:56 schrieb Thompson, David:
> > Then just run 'guix gc' and it will remove everything that isn't
> > currently included in a profile.
> 
> This would remove much too much :-)
> 
> I have quite some package to work on, including those with patches
> pending for inclusion. The dependencies of these packages are not in a
> profile (yet). Now when running `guix gc`, many packages need to be
> downloaded again a few minutes later.

This does not directly address your original question, but you should
consider running a substitutes mirror locally. I do this, and it speeds
things up considerably.

Of course, in its default configuration, the mirror only mirrors things
that ultimately come from hydra.gnu.org.

If interested, clone the 'maintenance' repo [0] and adapt the file
'hydra/nginx/mirror.conf' to your needs.
 
[0] https://savannah.gnu.org/git/?group=guix