From mboxrd@z Thu Jan  1 00:00:00 1970
From: Alex Kost <alezost@gmail.com>
Subject: Re: (Geiser or guile bug) Guix-daemon output is missing
Date: Mon, 07 Sep 2015 22:58:42 +0300
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In-Reply-To: <87lhcj44qc.fsf@gnu.org> ("Ludovic
	\=\?utf-8\?Q\?Court\=C3\=A8s\=22'\?\=
	\=\?utf-8\?Q\?s\?\= message of "Sun, 06 Sep 2015 23:28:43 +0200")
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To: Ludovic =?utf-8?Q?Court=C3=A8s?= <ludo@gnu.org>
Cc: guix-devel@gnu.org

Ludovic Court=C3=A8s (2015-09-07 00:28 +0300) wrote:

> 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 the=
re 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 ini=
tialized 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!

Thanks for answering!  This helped to make a simple recipe, so I
reported it: <https://github.com/jaor/geiser/issues/83>.

--=20
Alex