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From: ludo@gnu.org (Ludovic =?utf-8?Q?Court=C3=A8s?=)
Subject: Re: How to remove old (test) builds from store?
Date: Thu, 02 Jun 2016 23:06:29 +0200
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In-Reply-To: <57503449.9050200@crazy-compilers.com> (Hartmut Goebel's message
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To: Hartmut Goebel <h.goebel@crazy-compilers.com>
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Hartmut Goebel <h.goebel@crazy-compilers.com> skribis:

> 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 usually run =E2=80=98guix gc -F 4G=E2=80=99 or similar, which removes jus=
t as much as
needed.  That works rather well for me.

> 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.

They =E2=80=9Cneed=E2=80=9D to be downloaded again only if you want to rebu=
ild them,
yet without adding them to a profile or making them a GC root.  :-)

When needed, you can explicitly protect things from GC using profiles,
or using =E2=80=98guix build -r=E2=80=99.

Ludo=E2=80=99.