GNU bug report logs - #64856
guix shell cache doesn't consider grafts

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Ludovic Courtès <ludo <at> gnu.org>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#64856: closed (guix shell cache doesn't consider grafts)
Date: Thu, 12 Oct 2023 16:58:01 +0000

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Your message dated Thu, 12 Oct 2023 18:57:05 +0200
with message-id <87wmvrkcda.fsf <at> gnu.org>
and subject line Re: bug#64856: guix shell cache doesn't consider grafts
has caused the debbugs.gnu.org bug report #64856,
regarding guix shell cache doesn't consider grafts
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


-- 
64856: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=64856
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: Maxim Cournoyer <maxim.cournoyer <at> gmail.com>
To: bug-guix <bug-guix <at> gnu.org>
Subject: guix shell cache doesn't consider grafts
Date: Tue, 25 Jul 2023 09:55:22 -0400

Hello,

While investigating https://issues.guix.gnu.org/64836, I discovered that
the cache of 'guix shell' doesn't take into account grafts for
subsequent invocations.

Consider, using Guix at commit 21b718f4d6c3ded8ef50d12f6e9ae6474f74620f:

--8<---------------cut here---------------start------------->8---
$ guix build gtk+
/gnu/store/6vqx7nip7r95h2nhvhb9vxzjpri581b9-gtk+-3.24.37

$ guix build --no-grafts gtk+
/gnu/store/2n2kprz35a19ibs5kbjsb3k4cdl69q2w-gtk+-3.24.37

$ guix shell gtk+ -- sh -c 'realpath $GUIX_ENVIRONMENT/lib/libgtk-3.so'
/gnu/store/6vqx7nip7r95h2nhvhb9vxzjpri581b9-gtk+-3.24.37/lib/libgtk-3.so.0.2405.32

$ guix shell --no-grafts gtk+ -- sh -c 'realpath $GUIX_ENVIRONMENT/lib/libgtk-3.so'
/gnu/store/6vqx7nip7r95h2nhvhb9vxzjpri581b9-gtk+-3.24.37/lib/libgtk-3.so.0.2405.32
--8<---------------cut here---------------end--------------->8---

The 'guix shell --no-grafts' invocation simply reused the same cache as
the previous command, so grafts are in use, which is non-intuitive.  The
reverse would be true as well:

--8<---------------cut here---------------start------------->8---
$ guix shell --rebuild-cache --no-grafts gtk+ -- sh -c 'realpath $GUIX_ENVIRONMENT/lib/libgtk-3.so'
/gnu/store/2n2kprz35a19ibs5kbjsb3k4cdl69q2w-gtk+-3.24.37/lib/libgtk-3.so.0.2405.32

$ guix shell gtk+ -- sh -c 'realpath $GUIX_ENVIRONMENT/lib/libgtk-3.so'
/gnu/store/2n2kprz35a19ibs5kbjsb3k4cdl69q2w-gtk+-3.24.37/lib/libgtk-3.so.0.2405.32
--8<---------------cut here---------------end--------------->8---

The ungrafted cache got reused by the invocation that should have used
grafted inputs.

-- 
Thanks,
Maxim

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From: Ludovic Courtès <ludo <at> gnu.org>
To: Maxim Cournoyer <maxim.cournoyer <at> gmail.com>
Cc: 64856-done <at> debbugs.gnu.org
Subject: Re: bug#64856: guix shell cache doesn't consider grafts
Date: Thu, 12 Oct 2023 18:57:05 +0200

Hello,

Maxim Cournoyer <maxim.cournoyer <at> gmail.com> skribis:

> While investigating https://issues.guix.gnu.org/64836, I discovered that
> the cache of 'guix shell' doesn't take into account grafts for
> subsequent invocations.

Fixed in 75bdf8e06a325b90bf387a03f88726d338acbbf6.

Thanks,
Ludo’.

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