From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ludovic =?UTF-8?Q?Court=C3=A8s?= <ludo@gnu.org>
Subject: bug#38469: guix gc should keep around recent intermediate build
Date: Tue, 10 Dec 2019 17:39:07 +0100
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In-Reply-To: <A0E5ED6B-5E4F-4AF3-A745-7FA2E7336AA5@vllmrt.net> (Robert
 Vollmert's message of "Tue, 3 Dec 2019 15:29:00 +0100")
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To: Robert Vollmert <rob@vllmrt.net>
Cc: 38469-done@debbugs.gnu.org

Hi,

Robert Vollmert <rob@vllmrt.net> skribis:

>> Have you tried passing the options '--gc-keep-derivations=3Dyes=E2=80=99=
 and
>> '--gc-keep-outputs=3Dyes' to guix-daemon?
>
> I had not. I added that right now, and first tests seem to indicate
> that this helps. Thanks!

Yes, I think these options are exactly what you want.

> Would it be a bad idea to make this the default?

I think the current defaults are more appropriate; after all, they
really allow =E2=80=9Cgarbage=E2=80=9D to be collected.

> Alternatively, how about some kind of developer config fragment that
> would modify a system configuration with settings that are a good
> idea for Guix development, if not general use? That might also include
> things like setting the $%!^@!*^% guile backtrace columns variable
> for guix-daemon.

I think what you=E2=80=99d want is to set COLUMNS within derivation, not =
=E2=80=9Cfor
the daemon=E2=80=9D.

So I don=E2=80=99t know, I=E2=80=99m sympathetic to the idea of developer s=
ettings in
Guix System, but I=E2=80=99m not sure what it could bring beyond these two
options.

In the meantime, I propose to close this bug and to discuss this
potential new feature separately.

Thanks,
Ludo=E2=80=99.