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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2022 Ludovic Courtès <ludo@gnu.org>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
;;; This file returns a manifest containing entries to build past Guix
;;; releases from the current Guix, as per 'guix time-machine'.
(use-modules (srfi srfi-9) (ice-9 match)
(guix channels) (guix gexp)
((guix store) #:select (%store-monad))
((guix monads) #:select (mparameterize return))
((guix git) #:select (%repository-cache-directory))
((guix build utils) #:select (mkdir-p)))
;; Representation of the latest channels. This type exists just so we can
;; refer to such records in a gexp.
(define-record-type <guix-instance>
(guix-instance channels)
guix-instance?
(channels guix-instance-channels))
(define-gexp-compiler (guix-instance-compiler (instance <guix-instance>)
system target)
(match instance
(($ <guix-instance> channels)
;; When this manifest is evaluated by Cuirass, make sure it does not
;; fiddle with the cached checkout that Cuirass is also using since
;; concurrent accesses are unsafe.
(mparameterize %store-monad ((%repository-cache-directory
(string-append (%repository-cache-directory)
"/time-travel/" system)))
(return (mkdir-p (%repository-cache-directory)))
(latest-channel-derivation channels)))))
(define (guix-instance->manifest-entry instance)
"Return a manifest entry for INSTANCE."
(define (shorten commit)
(string-take commit 7))
(manifest-entry
(name "guix")
(version (string-join (map (compose shorten channel-commit)
(guix-instance-channels instance))
"-"))
(item instance)))
(define (commit->guix-instance commit)
"Return a Guix instance for COMMIT."
(guix-instance (list (channel
(inherit %default-guix-channel)
(commit commit)))))
(define %release-commits
;; Release commits: the list of version/commit pairs.
;;
;; Note: To merely compute the derivation of these revisions, we need to be
;; able to build their dependencies. Some of them no longer build from
;; source due to time traps like <https://issues.guix.gnu.org/58650>; those
;; need to be built beforehand in a virtual build machine running "in the
;; past".
'(("1.4.0" . "8e2f32cee982d42a79e53fc1e9aa7b8ff0514714")
("1.3.0" . "a0178d34f582b50e9bdbb0403943129ae5b560ff")
("1.2.0" . "a099685659b4bfa6b3218f84953cbb7ff9e88063")
("1.1.0" . "d62c9b2671be55ae0305bebfda17b595f33797f2")
("1.0.1" . "d68de958b60426798ed62797ff7c96c327a672ac")
("1.0.0" . "6298c3ffd9654d3231a6f25390b056483e8f407c")
("0.16.0" . "4a0b87f0ec5b6c2dcf82b372dd20ca7ea6acdd9c")))
(manifest
(map (match-lambda
((version . commit)
(let ((entry (guix-instance->manifest-entry
(commit->guix-instance commit))))
(manifest-entry
(inherit entry)
(version version)))))
%release-commits))
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