GNU bug report logs - #40867
guix build --rounds=N is miss advising

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Message #10 received at 40867-done <at> debbugs.gnu.org (full text, mbox):

From: Maxim Cournoyer <maxim.cournoyer <at> gmail.com>
To: Jonathan Brielmaier <jonathan.brielmaier <at> web.de>
Cc: 40867-done <at> debbugs.gnu.org
Subject: Re: bug#40867: guix build --rounds=N is miss advising
Date: Fri, 09 Oct 2020 16:59:45 -0400

Hi,

Jonathan Brielmaier <jonathan.brielmaier <at> web.de> writes:

> The help section for `guix build --rounds=N` in 7.1.1 Common Build
> Options is miss advising.
>
> ```
> Note that, currently, the differing build results are not kept
> around, so you will have to manually investigate in case of an
> error—e.g., by stashing one of the build results with ‘guix archive
> --export’ (*note Invoking guix archive::), then rebuilding, and finally
> comparing the two results.
> ```
>
> Should rather endorse `guix build --rounds=N --keep-failed` as this
> option preservers all differing builds, not only one. This option was
> proposed by Marius Bakke in IRC.

Fixed with commit 5918cb5341; closing.

Thanks for the report!

Maxim

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