GNU bug report logs - #36592
no output for guix package -f when the file evaluates to nothing

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Package: guix;

Reported by: Julien Lepiller <julien <at> lepiller.eu>

Date: Thu, 11 Jul 2019 09:32:02 UTC

Severity: normal

Tags: easy

Done: Ludovic Courtès <ludo <at> gnu.org>

Bug is archived. No further changes may be made.

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Ludovic Courtès <ludo <at> gnu.org>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#36592: closed (no output for guix package -f when the file
 evaluates to nothing)
Date: Fri, 20 Sep 2019 07:43:01 +0000
[Message part 1 (text/plain, inline)]
Your message dated Fri, 20 Sep 2019 09:42:22 +0200
with message-id <87mueztnvl.fsf <at> gnu.org>
and subject line Re: bug#36592: no output for guix package -f when the file evaluates to nothing
has caused the debbugs.gnu.org bug report #36592,
regarding no output for guix package -f when the file evaluates to nothing
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


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36592: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=36592
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[Message part 2 (message/rfc822, inline)]
From: Julien Lepiller <julien <at> lepiller.eu>
To: bug-guix <at> gnu.org
Subject: no output for guix package -f when the file evaluates to nothing
Date: Thu, 11 Jul 2019 11:31:04 +0200
Users tend to copy what they see in our code base, so it's not rare to have to help them realise that if their last statement is (define-public ...), the file doesn't evaluate to a package.

Running guix build -f mypackage.scm at least gives an error saying it doesn't know how to compile #<unspecified>.

Running guix package -f mypackage.scm returns immediately with no error message and a status of 0, but doesn't actually build or install anything. You can even try with an empty file :)

There should be an error message, and probably even a hint.


[Message part 3 (message/rfc822, inline)]
From: Ludovic Courtès <ludo <at> gnu.org>
To: Julien Lepiller <julien <at> lepiller.eu>
Cc: 36592-done <at> debbugs.gnu.org
Subject: Re: bug#36592: no output for guix package -f when the file evaluates
 to nothing
Date: Fri, 20 Sep 2019 09:42:22 +0200
Hello,

Julien Lepiller <julien <at> lepiller.eu> skribis:

> Users tend to copy what they see in our code base, so it's not rare to have to help them realise that if their last statement is (define-public ...), the file doesn't evaluate to a package.
>
> Running guix build -f mypackage.scm at least gives an error saying it doesn't know how to compile #<unspecified>.
>
> Running guix package -f mypackage.scm returns immediately with no error message and a status of 0, but doesn't actually build or install anything. You can even try with an empty file :)
>
> There should be an error message, and probably even a hint.

Fixed in f9c0400392843540a87985a67ffb9fb6e4dbc2fa.  It doesn’t provide a
hint though.

I thought we may want to provide ‘load*’ a type predicate that it would
check, so that it can say “got #<undefined>, expected <package>”.
However, we’d need a contract rather than a mere predicate to have nice
error reporting, so I decided to punt on this for now.

Ludo’.


This bug report was last modified 5 years and 283 days ago.

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