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package: Honor '--dry-run' when target profile is already in store.

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Fixes <https://issues.guix.gnu.org/53267>.
Reported by Tirifto <tirifto@posteo.cz>.

Regression introduced in 65ffb9388c.

In the (unlikely) case where the profile we're targeting with "guix
upgrade -n" or similar is already built, a new profile generation would
be created and linked to despite the use of '-n'.  This is because
65ffb9388c assumed that dry-run behavior
would be handled solely by the build handler, which is not the case when
there's nothing to build.

* guix/scripts/package.scm (build-and-use-profile): Reintroduce #:dry-run?
and honor it.
(process-actions): Pass #:dry-run? to 'build-and-use-profile'.
* tests/guix-package-net.sh: Add test.
This commit is contained in:
Ludovic Courtès 2022-01-19 22:01:35 +01:00
parent 09676b7c11
commit ccda88a070
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GPG key ID: 090B11993D9AEBB5
2 changed files with 14 additions and 1 deletions
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5
guix/scripts/package.scm
View file

@ -1,5 +1,5 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2012-2022 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2013 Nikita Karetnikov <nikita@karetnikov.org>
;;; Copyright © 2013, 2015 Mark H Weaver <mhw@netris.org>
;;; Copyright © 2014, 2016 Alex Kost <alezost@gmail.com>
@ -139,6 +139,7 @@ (define (delete-matching-generations store profile pattern)
(define* (build-and-use-profile store profile manifest
#:key
dry-run?
(hooks %default-profile-hooks)
allow-collisions?
bootstrap?)
@ -154,6 +155,7 @@ (define* (build-and-use-profile store profile manifest
(prof (derivation->output-path prof-drv)))
(cond
(dry-run? #t)
((and (file-exists? profile)
(and=> (readlink* profile) (cut string=? prof <>)))
(format (current-error-port) (G_ "nothing to be done~%")))
@ -1069,6 +1071,7 @@ (define (transform-entry entry)
trans
#:dry-run? dry-run?)
(build-and-use-profile store profile new
#:dry-run? dry-run?
#:allow-collisions? allow-collisions?
#:bootstrap? bootstrap?)))))

10
tests/guix-package-net.sh
View file

@ -196,6 +196,16 @@ EOF
guix package --bootstrap -p "$profile" -i gcc-bootstrap
installed="`guix package -p "$profile" -I | cut -f1`"
# Dry-run upgrade. Make sure no new generation is created when things are
# already in store and '-n' is used: <https://issues.guix.gnu.org/53267>.
V_MINOR=0
export V_MINOR
profile_before="$(readlink "$profile")"
guix package -p "$profile" --bootstrap -L "$module_dir" -u # build the profile
guix package -p "$profile" --roll-back
guix package -p "$profile" --bootstrap -L "$module_dir" -u . -n # check '-n'
test "$(readlink "$profile")" = "$profile_before"
for i in 1 2
do
V_MINOR="$i"