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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2017 David Craven <david@craven.ch>
;;; Copyright © 2017 Mathieu Othacehe <m.othacehe@gmail.com>
;;; Copyright © 2017 Leo Famulari <leo@famulari.name>
;;; Copyright © 2019 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/>.
(define-module (gnu bootloader)
#:use-module (guix discovery)
#:use-module (guix records)
#:use-module (guix ui)
#:use-module (srfi srfi-1)
#:use-module (ice-9 match)
#:export (menu-entry
menu-entry?
menu-entry-label
menu-entry-device
menu-entry-linux
menu-entry-linux-arguments
menu-entry-initrd
menu-entry-device-mount-point
menu-entry->sexp
sexp->menu-entry
bootloader
bootloader?
bootloader-name
bootloader-package
bootloader-installer
bootloader-configuration-file
bootloader-configuration-file-generator
bootloader-configuration
bootloader-configuration?
bootloader-configuration-bootloader
bootloader-configuration-target
bootloader-configuration-menu-entries
bootloader-configuration-default-entry
bootloader-configuration-timeout
bootloader-configuration-keyboard-layout
bootloader-configuration-theme
bootloader-configuration-terminal-outputs
bootloader-configuration-terminal-inputs
bootloader-configuration-serial-unit
bootloader-configuration-serial-speed
bootloader-configuration-additional-configuration
%bootloaders
lookup-bootloader-by-name))
;;;
;;; Menu-entry record.
;;;
(define-record-type* <menu-entry>
menu-entry make-menu-entry
menu-entry?
(label menu-entry-label)
(device menu-entry-device ; file system uuid, label, or #f
(default #f))
(device-mount-point menu-entry-device-mount-point
(default #f))
(linux menu-entry-linux)
(linux-arguments menu-entry-linux-arguments
(default '())) ; list of string-valued gexps
(initrd menu-entry-initrd)) ; file name of the initrd as a gexp
(define (menu-entry->sexp entry)
"Return ENTRY serialized as an sexp."
(match entry
(($ <menu-entry> label device mount-point linux linux-arguments initrd)
`(menu-entry (version 0)
(label ,label)
(device ,device)
(device-mount-point ,mount-point)
(linux ,linux)
(linux-arguments ,linux-arguments)
(initrd ,initrd)))))
(define (sexp->menu-entry sexp)
"Turn SEXP, an sexp as returned by 'menu-entry->sexp', into a <menu-entry>
record."
(match sexp
(('menu-entry ('version 0)
('label label) ('device device)
('device-mount-point mount-point)
('linux linux) ('linux-arguments linux-arguments)
('initrd initrd) _ ...)
(menu-entry
(label label)
(device device)
(device-mount-point mount-point)
(linux linux)
(linux-arguments linux-arguments)
(initrd initrd)))))
;;;
;;; Bootloader record.
;;;
;; The <bootloader> record contains fields expressing how the bootloader
;; should be installed. Every bootloader in gnu/bootloader/ directory
;; has to be described by this record.
(define-record-type* <bootloader>
bootloader make-bootloader
bootloader?
(name bootloader-name)
(package bootloader-package)
(installer bootloader-installer)
(configuration-file bootloader-configuration-file)
(configuration-file-generator bootloader-configuration-file-generator))
;;;
;;; Bootloader configuration record.
;;;
;; The <bootloader-configuration> record contains bootloader independant
;; configuration used to fill bootloader configuration file.
(define-record-type* <bootloader-configuration>
bootloader-configuration make-bootloader-configuration
bootloader-configuration?
(bootloader bootloader-configuration-bootloader) ;<bootloader>
(target bootloader-configuration-target ;string
(default #f))
(menu-entries bootloader-configuration-menu-entries ;list of <menu-entry>
(default '()))
(default-entry bootloader-configuration-default-entry ;integer
(default 0))
(timeout bootloader-configuration-timeout ;seconds as integer
(default 5))
(keyboard-layout bootloader-configuration-keyboard-layout ;<keyboard-layout> | #f
(default #f))
(theme bootloader-configuration-theme ;bootloader-specific theme
(default #f))
(terminal-outputs bootloader-configuration-terminal-outputs ;list of symbols
(default '(gfxterm)))
(terminal-inputs bootloader-configuration-terminal-inputs ;list of symbols
(default '()))
(serial-unit bootloader-configuration-serial-unit ;integer | #f
(default #f))
(serial-speed bootloader-configuration-serial-speed ;integer | #f
(default #f)))
;;;
;;; Bootloaders.
;;;
(define (bootloader-modules)
"Return the list of bootloader modules."
(all-modules (map (lambda (entry)
`(,entry . "gnu/bootloader"))
%load-path)
#:warn warn-about-load-error))
(define %bootloaders
;; The list of publically-known bootloaders.
(delay (fold-module-public-variables (lambda (obj result)
(if (bootloader? obj)
(cons obj result)
result))
'()
(bootloader-modules))))
(define (lookup-bootloader-by-name name)
"Return the bootloader called NAME."
(or (find (lambda (bootloader)
(eq? name (bootloader-name bootloader)))
(force %bootloaders))
(leave (G_ "~a: no such bootloader~%") name)))
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