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Offer a uniform decorated-boot-label and use it.

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* gnu/system/boot.scm (decorated-boot-label): New procedure.
* gnu/machine/ssh.scm (machine-boot-parameters): Use
  decorated-boot-label.
* guix/scripts/system.scm
  (profile-boot-parameters)[system->boot-parameters]: Use
  decorated-boot-label.

Change-Id: Id348c3047df2353f76b1bad0eb2a3e0fa17e474c
This commit is contained in:
Felix Lechner 2024-09-21 12:23:18 +02:00 committed by Ryan Schanzenbacher
parent 42d65fe2eb
commit 5ec2223c71
Signed by: ryan77627
GPG key ID: 81B0E222A3E2308E
3 changed files with 18 additions and 11 deletions
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8
gnu/machine/ssh.scm
View file

@ -459,15 +459,11 @@ (define (read-file path)
(let* ((params (call-with-input-string serialized-params
read-boot-parameters))
(root (boot-parameters-root-device params))
(label (boot-parameters-label params))
(text (boot-parameters-label params))
(version (boot-parameters-version params)))
(boot-parameters
(inherit params)
(label
(string-append label " (#"
(number->string generation) ", "
(epoch->date-string epoch)
")"))
(label (decorated-boot-label text generation epoch))
(kernel-arguments
(append (bootable-kernel-arguments system-path root version)
(boot-parameters-kernel-arguments params))))))))

13
gnu/system/boot.scm
View file

@ -10,6 +10,8 @@
;;; Copyright © 2020 Janneke Nieuwenhuizen <jannek@gnu.org>
;;; Copyright © 2020, 2022 Efraim Flashner <efraim@flashner.co.il>
;;; Copyright © 2024 Nicolas Graves <ngraves@ngraves.fr>
;;; Copyright © 2024 Felix Lechner <felix.lechner@lease-up.com>
;;; Copyright © 2024 Herman Rimm <herman@rimm.ee>
;;;
;;; This file is part of GNU Guix.
;;;
@ -66,6 +68,7 @@ (define-module (gnu system boot)
bootable-kernel-arguments
epoch->date-string
decorated-boot-label
boot-parameters->menu-entry
ensure-not-/dev
@ -298,6 +301,16 @@ (define (epoch->date-string epoch)
(date->string (time-utc->date time)
"~Y-~m-~d ~H:~M")))
(define (decorated-boot-label text generation epoch)
"Return a string for a nice boot label that includes TEXT, a numbered
GENERATION, and a timestamp derived from EPOCH seconds."
(let ((count (and generation
(string-append "#" (number->string generation))))
(timestamp (and=> epoch epoch->date-string)))
(match (filter identity (list count timestamp))
(() text)
(extras (string-append text "(" (string-join extras ", ") ")")))))
(define (boot-parameters->menu-entry conf)
"Return a <menu-entry> instance given CONF, a <boot-parameters> instance."
(let* ((kernel (boot-parameters-kernel conf))

6
guix/scripts/system.scm
View file

@ -337,12 +337,10 @@ (define* (profile-boot-parameters #:optional (profile %system-profile)
(define (system->boot-parameters system number epoch)
(unless-file-not-found
(let* ((params (read-boot-parameters-file system))
(label (boot-parameters-label params)))
(text (boot-parameters-label params)))
(boot-parameters
(inherit params)
(label (string-append label " (#"
(number->string number) ", "
(epoch->date-string epoch) ")"))))))
(label (decorated-boot-label text number epoch))))))
(let* ((systems (map (cut generation-file-name profile <>)
numbers))
(times (map (lambda (system)