GNU bug report logs - #63917
[PATCH] packages: 'package-transitive-supported-systems' detects cycles.

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Message #10 received at 63917-done <at> debbugs.gnu.org (full text, mbox):

From: Ludovic Courtès <ludo <at> gnu.org>
To: 63917-done <at> debbugs.gnu.org
Cc: Josselin Poiret <dev <at> jpoiret.xyz>, Tobias Geerinckx-Rice <me <at> tobias.gr>,
 Simon Tournier <zimon.toutoune <at> gmail.com>, Mathieu Othacehe <othacehe <at> gnu.org>,
 Christopher Baines <mail <at> cbaines.net>, Ricardo Wurmus <rekado <at> elephly.net>
Subject: Re: bug#63917: [PATCH] packages:
 'package-transitive-supported-systems' detects cycles.
Date: Wed, 14 Jun 2023 23:51:35 +0200

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

> With this change, commands such as 'guix build' or 'guix package' report
> obvious package-level cycles upfront.  Derivation-level cycles are not
> detected.
>
> * guix/packages.scm (&package-cyclic-dependency-error): New condition
> type.
> (package-transitive-supported-systems): Define 'visited', check it, and
> parameterize it.
> * guix/ui.scm (call-with-error-handling): Handle
> '&package-cyclic-dependency-error'.
> * tests/packages.scm ("package-transitive-supported-systems detects
> cycles"): Add test.

Pushed as e4259d4e9e3251e4c4b45d1cce4008ac32b504c8.

Ludo'.

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