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Subject: [bug#33515] [PATCH 0/5] Cuirass/Hydra: evaluate jobs in an inferior
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From: Ludovic =?UTF-8?Q?Court=C3=A8s?= <ludo@gnu.org>
References: <20181126163757.17399-1-ludo@gnu.org>
Date: Thu, 27 Dec 2018 18:27:03 +0100
In-Reply-To: <20181126163757.17399-1-ludo@gnu.org> ("Ludovic
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To: 33515@debbugs.gnu.org
Cc: Mark H Weaver <mhw@netris.org>

Hello!

Ludovic Court=C3=A8s <ludo@gnu.org> skribis:

> This patch set changes the way we compute continuous integration jobs:
> instead of letting Guile auto-compile all of Guix from its checkout,
> we first build Guix in the same way as =E2=80=98guix pull=E2=80=99, open =
an inferior
> to that Guix, and run the job evaluation code in that inferior.
>
> I think it=E2=80=99s cleaner and it should be faster and less resource-hu=
ngry
> than the current approach.
>
> The build-aux/hydra/gnu-system.scm file will now rely on the
> (guix channels) and (guix inferior) with the new =E2=80=98checkout->chann=
el-instance=E2=80=99
> and =E2=80=98inferior-eval-with-store=E2=80=99 procedures, which means th=
at Cuirass
> (and Hydra) will need to be using a recent Guix to be able to perform
> the evaluation.  Apart from that =E2=80=98gnu-system.scm=E2=80=99 is rath=
er decoupled
> from the Guix APIs.

I=E2=80=99ve pushed the patches to the =E2=80=98wip-ci-inferior=E2=80=99 br=
anch and created
these two jobsets:

  https://berlin.guixsd.org/jobset/wip-ci-inferior
  https://hydra.gnu.org/jobset/gnu/wip-ci-inferior

Evaluation with Cuirass on berlin went fine.

I suspect evaluation on hydra will fail though, because it=E2=80=99s probab=
ly
running an older Guix version; we=E2=80=99ll have to upgrade there.  Mark, =
would
you like to take a look?

Ludo=E2=80=99.