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