248 lines
8.2 KiB
Scheme
248 lines
8.2 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
|
||
;;; Copyright © 2013, 2014, 2015 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 system grub)
|
||
#:use-module (guix store)
|
||
#:use-module (guix packages)
|
||
#:use-module (guix derivations)
|
||
#:use-module (guix records)
|
||
#:use-module (guix monads)
|
||
#:use-module (guix gexp)
|
||
#:use-module (guix download)
|
||
#:use-module (gnu artwork)
|
||
#:autoload (gnu packages grub) (grub)
|
||
#:autoload (gnu packages inkscape) (inkscape)
|
||
#:autoload (gnu packages imagemagick) (imagemagick)
|
||
#:autoload (gnu packages compression) (gzip)
|
||
#:use-module (ice-9 match)
|
||
#:use-module (srfi srfi-1)
|
||
#:export (grub-image
|
||
grub-image?
|
||
grub-image-aspect-ratio
|
||
grub-image-file
|
||
|
||
grub-theme
|
||
grub-theme?
|
||
grub-theme-images
|
||
grub-theme-color-normal
|
||
grub-theme-color-highlight
|
||
|
||
%background-image
|
||
%default-theme
|
||
|
||
grub-configuration
|
||
grub-configuration?
|
||
grub-configuration-device
|
||
|
||
menu-entry
|
||
menu-entry?
|
||
|
||
grub-configuration-file))
|
||
|
||
;;; Commentary:
|
||
;;;
|
||
;;; Configuration of GNU GRUB.
|
||
;;;
|
||
;;; Code:
|
||
|
||
(define-record-type* <grub-image>
|
||
grub-image make-grub-image
|
||
grub-image?
|
||
(aspect-ratio grub-image-aspect-ratio ;rational number
|
||
(default 4/3))
|
||
(file grub-image-file)) ;file-valued gexp (SVG)
|
||
|
||
(define-record-type* <grub-theme>
|
||
grub-theme make-grub-theme
|
||
grub-theme?
|
||
(images grub-theme-images
|
||
(default '())) ;list of <grub-image>
|
||
(color-normal grub-theme-color-normal
|
||
(default '((fg . cyan) (bg . blue))))
|
||
(color-highlight grub-theme-color-highlight
|
||
(default '((fg . white) (bg . blue)))))
|
||
|
||
(define %background-image
|
||
(grub-image
|
||
(aspect-ratio 4/3)
|
||
(file #~(string-append #$%artwork-repository
|
||
"/grub/GuixSD-fully-black-4-3.svg"))))
|
||
|
||
(define %default-theme
|
||
;; Default theme contributed by Felipe López.
|
||
(grub-theme
|
||
(images (list %background-image))
|
||
(color-highlight '((fg . yellow) (bg . black)))
|
||
(color-normal '((fg . light-gray) (bg . black))))) ;XXX: #x303030
|
||
|
||
(define-record-type* <grub-configuration>
|
||
grub-configuration make-grub-configuration
|
||
grub-configuration?
|
||
(grub grub-configuration-grub ; package
|
||
(default (@ (gnu packages grub) grub)))
|
||
(device grub-configuration-device) ; string
|
||
(menu-entries grub-configuration-menu-entries ; list
|
||
(default '()))
|
||
(default-entry grub-configuration-default-entry ; integer
|
||
(default 0))
|
||
(timeout grub-configuration-timeout ; integer
|
||
(default 5))
|
||
(theme grub-configuration-theme ; <grub-theme>
|
||
(default %default-theme)))
|
||
|
||
(define-record-type* <menu-entry>
|
||
menu-entry make-menu-entry
|
||
menu-entry?
|
||
(label menu-entry-label)
|
||
(linux menu-entry-linux)
|
||
(linux-arguments menu-entry-linux-arguments
|
||
(default '())) ; list of string-valued gexps
|
||
(initrd menu-entry-initrd)) ; file name of the initrd as a gexp
|
||
|
||
|
||
;;;
|
||
;;; Background image & themes.
|
||
;;;
|
||
|
||
(define (svg->png svg)
|
||
"Build a PNG from SVG."
|
||
;; Don't use #:local-build? so that it's substitutable.
|
||
(gexp->derivation "grub-image.png"
|
||
#~(zero?
|
||
(system* (string-append #$inkscape "/bin/inkscape")
|
||
"--without-gui"
|
||
(string-append "--export-png=" #$output)
|
||
#$svg))))
|
||
|
||
(define (resize-image image width height)
|
||
"Resize IMAGE to WIDTHxHEIGHT."
|
||
;; Don't use #:local-build? so that it's substitutable.
|
||
(let ((size (string-append (number->string width)
|
||
"x" (number->string height))))
|
||
(gexp->derivation "grub-image.resized.png"
|
||
#~(zero?
|
||
(system* (string-append #$imagemagick "/bin/convert")
|
||
"-resize" #$size #$image #$output)))))
|
||
|
||
(define* (grub-background-image config #:key (width 640) (height 480))
|
||
"Return the GRUB background image defined in CONFIG with a ratio of
|
||
WIDTH/HEIGHT, or #f if none was found."
|
||
(let* ((ratio (/ width height))
|
||
(image (find (lambda (image)
|
||
(= (grub-image-aspect-ratio image) ratio))
|
||
(grub-theme-images (grub-configuration-theme config)))))
|
||
(if image
|
||
(mlet %store-monad ((png (svg->png (grub-image-file image))))
|
||
(resize-image png width height))
|
||
(with-monad %store-monad
|
||
(return #f)))))
|
||
|
||
(define (eye-candy config port)
|
||
"Return in %STORE-MONAD a gexp that writes to PORT (a port-valued gexp) the
|
||
'grub.cfg' part concerned with graphics mode, background images, colors, and
|
||
all that."
|
||
(define (theme-colors type)
|
||
(let* ((theme (grub-configuration-theme config))
|
||
(colors (type theme)))
|
||
(string-append (symbol->string (assoc-ref colors 'fg)) "/"
|
||
(symbol->string (assoc-ref colors 'bg)))))
|
||
|
||
(mlet* %store-monad ((image (grub-background-image config)))
|
||
(return (and image #~(format #$port "
|
||
function load_video {
|
||
insmod vbe
|
||
insmod vga
|
||
insmod video_bochs
|
||
insmod video_cirrus
|
||
}
|
||
|
||
# Set 'root' to the partition that contains /gnu/store.
|
||
search --file --set ~a/share/grub/unicode.pf2
|
||
|
||
if loadfont ~a/share/grub/unicode.pf2; then
|
||
set gfxmode=640x480
|
||
load_video
|
||
insmod gfxterm
|
||
terminal_output gfxterm
|
||
fi
|
||
|
||
insmod png
|
||
if background_image ~a; then
|
||
set color_normal=~a
|
||
set color_highlight=~a
|
||
else
|
||
set menu_color_normal=cyan/blue
|
||
set menu_color_highlight=white/blue
|
||
fi~%"
|
||
#$grub #$grub
|
||
#$image
|
||
#$(theme-colors grub-theme-color-normal)
|
||
#$(theme-colors grub-theme-color-highlight))))))
|
||
|
||
|
||
;;;
|
||
;;; Configuration file.
|
||
;;;
|
||
|
||
(define* (grub-configuration-file config entries
|
||
#:key
|
||
(system (%current-system))
|
||
(old-entries '()))
|
||
"Return the GRUB configuration file corresponding to CONFIG, a
|
||
<grub-configuration> object. OLD-ENTRIES is taken to be a list of menu
|
||
entries corresponding to old generations of the system."
|
||
(define all-entries
|
||
(append entries (grub-configuration-menu-entries config)))
|
||
|
||
(define entry->gexp
|
||
(match-lambda
|
||
(($ <menu-entry> label linux arguments initrd)
|
||
#~(format port "menuentry ~s {
|
||
# Set 'root' to the partition that contains the kernel.
|
||
search --file --set ~a/bzImage~%
|
||
|
||
linux ~a/bzImage ~a
|
||
initrd ~a
|
||
}~%"
|
||
#$label
|
||
#$linux #$linux (string-join (list #$@arguments))
|
||
#$initrd))))
|
||
|
||
(mlet %store-monad ((sugar (eye-candy config #~port)))
|
||
(define builder
|
||
#~(call-with-output-file #$output
|
||
(lambda (port)
|
||
#$sugar
|
||
(format port "
|
||
set default=~a
|
||
set timeout=~a~%"
|
||
#$(grub-configuration-default-entry config)
|
||
#$(grub-configuration-timeout config))
|
||
#$@(map entry->gexp all-entries)
|
||
|
||
#$@(if (pair? old-entries)
|
||
#~((format port "
|
||
submenu \"GNU system, old configurations...\" {~%")
|
||
#$@(map entry->gexp old-entries)
|
||
(format port "}~%"))
|
||
#~()))))
|
||
|
||
(gexp->derivation "grub.cfg" builder)))
|
||
|
||
;;; grub.scm ends here
|