diff options
Diffstat (limited to 'guix/channels.scm')
| -rw-r--r-- | guix/channels.scm | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/guix/channels.scm b/guix/channels.scm index ce1a60436f..689b30e0eb 100644 --- a/guix/channels.scm +++ b/guix/channels.scm @@ -1,5 +1,5 @@ ;;; GNU Guix --- Functional package management for GNU -;;; Copyright © 2018, 2019, 2020, 2021 Ludovic Courtès <ludo@gnu.org> +;;; Copyright © 2018-2022 Ludovic Courtès <ludo@gnu.org> ;;; Copyright © 2018 Ricardo Wurmus <rekado@elephly.net> ;;; Copyright © 2019 Jan (janneke) Nieuwenhuizen <janneke@gnu.org> ;;; Copyright © 2021 Brice Waegeneire <brice@waegenei.re> @@ -896,7 +896,12 @@ specified." (define (package-cache-file manifest) "Build a package cache file for the instance in MANIFEST. This is meant to be used as a profile hook." - (let ((profile (profile (content manifest) (hooks '())))) + ;; Note: Emit a profile in format version 3, which was introduced in 2017 + ;; and is readable by Guix since before version 1.0. This ensures that the + ;; Guix in MANIFEST is able to read the manifest file created for its own + ;; profile below. See <https://issues.guix.gnu.org/56441>. + (let ((profile (profile (content manifest) (hooks '()) + (format-version 3)))) (define build #~(begin (use-modules (gnu packages)) @@ -937,8 +942,12 @@ be used as a profile hook." "Return the derivation of the profile containing INSTANCES, a list of channel instances." (mlet %store-monad ((manifest (channel-instances->manifest instances))) + ;; Emit a profile in format version so that, if INSTANCES denotes an old + ;; Guix, it can still read that profile, for instance for the purposes of + ;; 'guix describe'. (profile-derivation manifest - #:hooks %channel-profile-hooks))) + #:hooks %channel-profile-hooks + #:format-version 3))) (define latest-channel-instances* (store-lift latest-channel-instances)) |