bug#37506: [core-updates] Inferiors cannot reference master branch

[Marius Bakke <mbakke@fastmail.com>]

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Ludovic Courtès <ludo@gnu.org> writes:

> Hi Marius!
>
> Marius Bakke <mbakke@fastmail.com> skribis:
>
>> Here is a manifest that reproduces this failure:
>>
>> (use-modules (guix channels)
>>              (guix inferior)
>>              (srfi srfi-1))
>>
>> (define channels
>>   (list (channel
>>          (name 'guix)
>>          (url "https://git.savannah.gnu.org/git/guix.git")
>>          (commit "dec845606d2d184da31065fa26cd951b84b3ce2d"))))
>>
>> (define inferior
>>   (inferior-for-channels channels))
>>
>> (packages->manifest (first (lookup-inferior-packages inferior "hello")))
>                        ^~~~~
> ‘packages->manifest’ expects a list, so I had to remove the call to ‘first’.

Whoops...  It still fails in the same way for me without the (first ...).

> But then it works for me on both ‘core-updates’ and ‘master’:
>
> --8<---------------cut here---------------start------------->8---
> $ ./pre-inst-env guix package -m /tmp/t.scm -p /tmp/prof
> Updating channel 'guix' from Git repository at 'https://git.savannah.gnu.org/git/guix.git'...
> installing new manifest from '/tmp/t.scm' with 1 entries
> substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0%
> The following derivation will be built:
>    /gnu/store/4h0y9413i4nvdwccz5svv1m5y36l384v-profile.drv
> The following profile hooks will be built:
>    /gnu/store/8rp1mzhlscri2ipx9xszld9sli79ywpn-ca-certificate-bundle.drv
>    /gnu/store/g2cvc48yn91igp7bvsv6bw5cz47gzgzs-fonts-dir.drv
>    /gnu/store/p5m0rag6q73qisrcnp0l79fdrp1hj2rv-manual-database.drv
>    /gnu/store/pvhkcys50sz2apq1pb05fgva2hky91ap-info-dir.drv
> building CA certificate bundle...
> building fonts directory...
> building directory of Info manuals...
> building database for manual pages...
> building /gnu/store/4h0y9413i4nvdwccz5svv1m5y36l384v-profile.drv...
> 1 package in profile
> hint: Consider setting the necessary environment variables by running:
>
>      GUIX_PROFILE="/tmp/prof"
>      . "$GUIX_PROFILE/etc/profile"
>
> Alternately, see `guix package --search-paths -p "/tmp/prof"'.
>
> $ git log|head -1
> commit 3128d6a16a80d40d927c41f530dd48ebbb8a036d
> --8<---------------cut here---------------end--------------->8---
>
> Am I missing something?

I have included a system configuration that works fine on 'master' but
not on 'core-updates'.  It consistently fails to `guix system build`
across multiple machines, including "berlin".


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(use-modules (gnu) (gnu system nss)
             (guix inferior) (guix channels)
             (srfi srfi-1))
(use-service-modules base)

(define channels
  (list (channel
         (name 'guix)
         (url "https://git.savannah.gnu.org/git/guix.git")
         (commit "9b983086345557ac0a6a40c8cb3a2afd5250d3ee"))))

(define inferior
  (inferior-for-channels channels))

(operating-system
  (host-name "antelope")
  (timezone "Europe/Paris")
  (locale "en_US.utf8")
  (kernel (first (lookup-inferior-packages "linux-libre")))

  (bootloader (bootloader-configuration
                (bootloader grub-bootloader)
                (target "/dev/sda")))

  (file-systems (cons (file-system
                        (device "/dev/sda1")
                        (mount-point "/")
                        (type "ext4"))
                      %base-file-systems))

  (users %base-user-accounts)
  (packages %base-packages)
  (services %base-services))

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