From mboxrd@z Thu Jan  1 00:00:00 1970
From: ludo@gnu.org (Ludovic =?utf-8?Q?Court=C3=A8s?=)
Subject: Re: (Geiser or guile bug) Guix-daemon output is missing
Date: Sun, 06 Sep 2015 23:28:43 +0200
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References: <87d1xvx6lb.fsf@gmail.com>
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In-Reply-To: <87d1xvx6lb.fsf@gmail.com> (Alex Kost's message of "Sun, 06 Sep
	2015 12:03:28 +0300")
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To: Alex Kost <alezost@gmail.com>
Cc: guix-devel@gnu.org

Alex Kost <alezost@gmail.com> skribis:

> Now the bug itself:
>
> 1. Start Geiser (M-x run-guile)
>
> 2. Make a scheme buffer and evaluate (use-modules (guix scripts build))
>    there using "C-x C-e" or "C-M-x" (or any other "geiser-eval-=E2=80=A6"
>    command).  This is important: do not ,use module in the REPL;
>    evaluate =E2=80=98use-modules=E2=80=99 clause in a scheme buffer!
>
> 3. Go to the REPL and run the following there:
>
>    (catch 'quit (lambda () (guix-build "test-package")) (const #t)).
>
> You get only "The following derivation will be built: =E2=80=A6" but ther=
e is no
> build output from guix-daemon.

Ha ha!  Try this before:

  (current-build-output-port (current-error-port))

The trick here is that =E2=80=98current-build-output-port=E2=80=99 is initi=
alized to
(current-error-port), but that initialization happens at the top-level,
apparently before Geiser has rebound =E2=80=98current-error-port=E2=80=99, =
hence the
silence.

HTH!

Ludo=E2=80=99.