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bug#40612: guix build system --dry-run is broken
From: |
Ludovic Courtès |
Subject: |
bug#40612: guix build system --dry-run is broken |
Date: |
Wed, 15 Apr 2020 18:56:04 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/26.3 (gnu/linux) |
Hello!
Björn Höfling <address@hidden> skribis:
> On Mon, 13 Apr 2020 17:31:56 -0400
> Mark H Weaver <address@hidden> wrote:
>
>> I guess this is related to the recent changes in graft handling, where
>> --dry-run (a.k.a. -n) no longer implies --no-grafts. It's not working
>> well for me. I hadn't updated my system since before those grafting
>> changes were made, and there's a lot for me to rebuild (I don't use
>> substitutes). I was very surprised to see this small output:
>
> Hi Mark,
>
> I can confirm this behavior for "guix system". I'm on
Yeah, it has to do with the new build handler and the lack of
“parallelism” when building the system derivation:
https://lists.gnu.org/archive/html/guix-devel/2020-03/msg00337.html
I think we’ll improve it over time by introducing more parallelism
there.
Fundamentally though, we have to understand that ‘--dry-run’ can only
print the first derivation plans, not those that are dynamically built
as a function of build results.
Thanks,
Ludo’.