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Re: How to notice when my change breaks something
From: |
Björn Höfling |
Subject: |
Re: How to notice when my change breaks something |
Date: |
Sun, 18 Feb 2018 22:04:27 +0100 |
Hi Mark,
On Sun, 11 Feb 2018 17:35:43 -0500
Mark H Weaver <address@hidden> wrote:
> Hi Chris,
>
> Chris Marusich <address@hidden> writes:
>
> > How do you notice when a change breaks something else? You so
> > frequently notice these things, it almost seems like you're
> > omniscient!
> >
> > Do you have an automated mechanism for doing this, or are you
> > manually checking things frequently?
>
> I regularly check Hydra for newly failed packages. To see the most
> recent evaluations, visit <https://hydra.gnu.org/evals>. Each
> evaluation corresponds to a commit of Guix's git repo. You can
> compare two evaluations with URLs of the form
> <https://hydra.gnu.org/eval/109907?compare=109906>, which will compare
> evaluation 109907 to the previous evaluation 109906. It is also often
> useful to compare to a slightly older evaluation, especially one with
> an unusually low number of failures, e.g.
> <https://hydra.gnu.org/eval/109907?compare=109896> where 109896 was
> the most recent evaluation of 'master' with fewer than 1900 failures.
>
> Note that hydra.gnu.org is not sufficiently powerful for the work it
> is currently doing, so it often takes on the order of several
> *minutes* for the above URLs to load, and sometimes the Nginx
> front-end will time-out before that happens. Our new build farm is
> vastly more powerful, but its web interface is currently quite
> rudimentary and not yet sufficient for the kind of monitoring I do on
> Hydra.
>
> Hope this helps.
>
> Mark
Yes, that definitely helped me too.
I have a follow-up question: This day I realized that teeworlds broke
on core-updates due to a freetype update (see
https://debbugs.gnu.org/cgi/bugreport.cgi?bug=30518).
Now I thought: Is it possible to download the whole list of
(directly) breaking packages from Hydra? If so, I could fold-packages
through them and filter out those that also have freetype as a
dependency and probably fix them with a one-liner. Is there any
download/API functionality for Hydra?
Björn