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

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

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.

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