2013-09-11 20:36:50 +00:00
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;;; GNU Guix --- Functional package management for GNU
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2015-02-12 22:42:29 +00:00
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;;; Copyright © 2013, 2014, 2015 Ludovic Courtès <ludo@gnu.org>
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2013-09-11 20:36:50 +00:00
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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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(define-module (gnu system grub)
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#:use-module (guix store)
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#:use-module (guix packages)
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#:use-module (guix derivations)
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#:use-module (guix records)
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gnu: vm: Rewrite helper functions as monadic functions.
* gnu/system/dmd.scm (host-name-service, nscd-service, mingetty-service,
syslog-service, guix-service, static-networking-service): Rewrite as
monadic functions.
(dmd-configuration-file): Use 'text-file' instead of
'add-text-to-store'.
* gnu/system/grub.scm (grub-configuration-file): Rewrite as a monadic
function.
* gnu/system/linux.scm (pam-services->directory): Likewise.
* gnu/system/shadow.scm (group-file, passwd-file, guix-build-accounts):
Likewise.
* gnu/system/vm.scm (expression->derivation-in-linux-vm, qemu-image,
union, system-qemu-image): Likewise.
2013-10-03 19:30:30 +00:00
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#:use-module (guix monads)
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2014-04-28 21:40:24 +00:00
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#:use-module (guix gexp)
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2014-11-08 14:07:18 +00:00
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#:use-module (guix download)
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2014-11-12 13:28:36 +00:00
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#:use-module (gnu artwork)
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2014-11-08 14:07:18 +00:00
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#:autoload (gnu packages grub) (grub)
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#:autoload (gnu packages inkscape) (inkscape)
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#:autoload (gnu packages imagemagick) (imagemagick)
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#:autoload (gnu packages compression) (gzip)
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2013-09-11 20:36:50 +00:00
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#:use-module (ice-9 match)
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2015-08-09 22:45:49 +00:00
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#:use-module (ice-9 regex)
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2013-09-11 20:36:50 +00:00
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#:use-module (srfi srfi-1)
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2014-11-08 14:07:18 +00:00
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#:export (grub-image
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grub-image?
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grub-image-aspect-ratio
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grub-image-file
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grub-theme
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grub-theme?
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grub-theme-images
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grub-theme-color-normal
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grub-theme-color-highlight
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%background-image
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%default-theme
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grub-configuration
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2014-05-18 19:58:01 +00:00
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grub-configuration?
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grub-configuration-device
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menu-entry
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2013-09-11 20:36:50 +00:00
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menu-entry?
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2014-05-18 19:58:01 +00:00
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2013-09-11 20:36:50 +00:00
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grub-configuration-file))
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;;; Commentary:
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;;;
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;;; Configuration of GNU GRUB.
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;;;
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;;; Code:
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2014-11-08 14:07:18 +00:00
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(define-record-type* <grub-image>
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grub-image make-grub-image
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grub-image?
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(aspect-ratio grub-image-aspect-ratio ;rational number
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(default 4/3))
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(file grub-image-file)) ;file-valued gexp (SVG)
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(define-record-type* <grub-theme>
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grub-theme make-grub-theme
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grub-theme?
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(images grub-theme-images
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(default '())) ;list of <grub-image>
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(color-normal grub-theme-color-normal
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(default '((fg . cyan) (bg . blue))))
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(color-highlight grub-theme-color-highlight
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(default '((fg . white) (bg . blue)))))
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(define %background-image
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(grub-image
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(aspect-ratio 4/3)
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2015-05-07 21:07:54 +00:00
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(file #~(string-append #$%artwork-repository
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"/grub/GuixSD-fully-black-4-3.svg"))))
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2014-11-08 14:07:18 +00:00
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(define %default-theme
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;; Default theme contributed by Felipe López.
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(grub-theme
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(images (list %background-image))
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2015-02-12 22:42:29 +00:00
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(color-highlight '((fg . yellow) (bg . black)))
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2014-11-08 14:07:18 +00:00
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(color-normal '((fg . light-gray) (bg . black))))) ;XXX: #x303030
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2014-05-18 19:58:01 +00:00
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(define-record-type* <grub-configuration>
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grub-configuration make-grub-configuration
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grub-configuration?
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(grub grub-configuration-grub ; package
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(default (@ (gnu packages grub) grub)))
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(device grub-configuration-device) ; string
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(menu-entries grub-configuration-menu-entries ; list
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(default '()))
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(default-entry grub-configuration-default-entry ; integer
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(default 0))
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2014-05-18 19:58:01 +00:00
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(timeout grub-configuration-timeout ; integer
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2014-11-08 14:07:18 +00:00
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(default 5))
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(theme grub-configuration-theme ; <grub-theme>
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(default %default-theme)))
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2014-05-18 19:58:01 +00:00
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2013-09-11 20:36:50 +00:00
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(define-record-type* <menu-entry>
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menu-entry make-menu-entry
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menu-entry?
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(label menu-entry-label)
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(linux menu-entry-linux)
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(linux-arguments menu-entry-linux-arguments
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2014-04-28 21:40:24 +00:00
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(default '())) ; list of string-valued gexps
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(initrd menu-entry-initrd)) ; file name of the initrd as a gexp
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2013-09-11 20:36:50 +00:00
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2014-11-08 14:07:18 +00:00
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;;;
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;;; Background image & themes.
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;;;
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(define (svg->png svg)
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"Build a PNG from SVG."
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;; Don't use #:local-build? so that it's substitutable.
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(gexp->derivation "grub-image.png"
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#~(zero?
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(system* (string-append #$inkscape "/bin/inkscape")
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"--without-gui"
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(string-append "--export-png=" #$output)
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#$svg))))
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(define (resize-image image width height)
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"Resize IMAGE to WIDTHxHEIGHT."
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;; Don't use #:local-build? so that it's substitutable.
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(let ((size (string-append (number->string width)
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"x" (number->string height))))
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(gexp->derivation "grub-image.resized.png"
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#~(zero?
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(system* (string-append #$imagemagick "/bin/convert")
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"-resize" #$size #$image #$output)))))
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(define* (grub-background-image config #:key (width 640) (height 480))
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"Return the GRUB background image defined in CONFIG with a ratio of
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WIDTH/HEIGHT, or #f if none was found."
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(let* ((ratio (/ width height))
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(image (find (lambda (image)
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(= (grub-image-aspect-ratio image) ratio))
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(grub-theme-images (grub-configuration-theme config)))))
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(if image
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(mlet %store-monad ((png (svg->png (grub-image-file image))))
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(resize-image png width height))
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(with-monad %store-monad
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(return #f)))))
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2015-08-09 22:45:49 +00:00
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(define (eye-candy config system port)
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2014-11-08 14:07:18 +00:00
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"Return in %STORE-MONAD a gexp that writes to PORT (a port-valued gexp) the
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'grub.cfg' part concerned with graphics mode, background images, colors, and
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all that."
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2015-08-09 22:45:49 +00:00
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(define setup-gfxterm-body
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;; Intel systems need to be switched into graphics mode, whereas most
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;; other modern architectures have no other mode and therefore don't need
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;; to be switched.
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(if (string-match "^(x86_64|i[3-6]86)-" system)
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"
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2015-10-29 08:58:17 +00:00
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# Leave 'gfxmode' to 'auto'.
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2015-08-09 22:45:49 +00:00
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insmod vbe
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insmod vga
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insmod video_bochs
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insmod video_cirrus
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insmod gfxterm
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terminal_output gfxterm
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"
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""))
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2014-11-08 14:07:18 +00:00
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(define (theme-colors type)
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(let* ((theme (grub-configuration-theme config))
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(colors (type theme)))
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(string-append (symbol->string (assoc-ref colors 'fg)) "/"
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(symbol->string (assoc-ref colors 'bg)))))
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(mlet* %store-monad ((image (grub-background-image config)))
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2015-08-09 22:45:49 +00:00
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(return (and image
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#~(format #$port "
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function setup_gfxterm {~a}
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2014-11-08 14:07:18 +00:00
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2014-12-13 21:15:01 +00:00
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# Set 'root' to the partition that contains /gnu/store.
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search --file --set ~a/share/grub/unicode.pf2
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2014-11-08 14:07:18 +00:00
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if loadfont ~a/share/grub/unicode.pf2; then
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2015-08-09 22:45:49 +00:00
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setup_gfxterm
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2014-11-08 14:07:18 +00:00
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fi
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insmod png
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if background_image ~a; then
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set color_normal=~a
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set color_highlight=~a
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else
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set menu_color_normal=cyan/blue
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set menu_color_highlight=white/blue
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fi~%"
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2015-08-09 22:45:49 +00:00
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#$setup-gfxterm-body
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#$grub #$grub
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#$image
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#$(theme-colors grub-theme-color-normal)
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#$(theme-colors grub-theme-color-highlight))))))
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2014-11-08 14:07:18 +00:00
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;;;
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;;; Configuration file.
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;;;
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2014-05-18 19:58:01 +00:00
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(define* (grub-configuration-file config entries
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2014-06-25 20:54:52 +00:00
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#:key
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(system (%current-system))
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(old-entries '()))
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2014-05-18 19:58:01 +00:00
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"Return the GRUB configuration file corresponding to CONFIG, a
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2014-06-25 20:54:52 +00:00
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<grub-configuration> object. OLD-ENTRIES is taken to be a list of menu
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entries corresponding to old generations of the system."
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2015-08-19 20:30:02 +00:00
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(define linux-image-name
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(if (string-prefix? "mips" system)
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"vmlinuz"
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"bzImage"))
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2014-05-18 19:58:01 +00:00
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(define all-entries
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(append entries (grub-configuration-menu-entries config)))
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2014-04-28 21:40:24 +00:00
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(define entry->gexp
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2013-09-11 20:36:50 +00:00
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(match-lambda
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(($ <menu-entry> label linux arguments initrd)
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2014-04-28 21:40:24 +00:00
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#~(format port "menuentry ~s {
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2014-12-13 20:28:12 +00:00
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# Set 'root' to the partition that contains the kernel.
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2015-08-19 20:30:02 +00:00
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search --file --set ~a/~a~%
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2014-12-13 20:28:12 +00:00
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2015-08-19 20:30:02 +00:00
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linux ~a/~a ~a
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gnu: vm: Rewrite helper functions as monadic functions.
* gnu/system/dmd.scm (host-name-service, nscd-service, mingetty-service,
syslog-service, guix-service, static-networking-service): Rewrite as
monadic functions.
(dmd-configuration-file): Use 'text-file' instead of
'add-text-to-store'.
* gnu/system/grub.scm (grub-configuration-file): Rewrite as a monadic
function.
* gnu/system/linux.scm (pam-services->directory): Likewise.
* gnu/system/shadow.scm (group-file, passwd-file, guix-build-accounts):
Likewise.
* gnu/system/vm.scm (expression->derivation-in-linux-vm, qemu-image,
union, system-qemu-image): Likewise.
2013-10-03 19:30:30 +00:00
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initrd ~a
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2013-09-11 20:36:50 +00:00
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}~%"
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2014-04-28 21:40:24 +00:00
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#$label
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2015-08-19 20:30:02 +00:00
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#$linux #$linux-image-name
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#$linux #$linux-image-name (string-join (list #$@arguments))
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2014-04-28 21:40:24 +00:00
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#$initrd))))
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2015-08-09 22:45:49 +00:00
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(mlet %store-monad ((sugar (eye-candy config system #~port)))
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2014-11-08 14:07:18 +00:00
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(define builder
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#~(call-with-output-file #$output
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(lambda (port)
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#$sugar
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(format port "
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2014-04-28 21:40:24 +00:00
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set default=~a
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2014-12-13 20:28:12 +00:00
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set timeout=~a~%"
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2014-11-08 14:07:18 +00:00
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#$(grub-configuration-default-entry config)
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2014-12-13 20:28:12 +00:00
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#$(grub-configuration-timeout config))
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2014-11-08 14:07:18 +00:00
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#$@(map entry->gexp all-entries)
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#$@(if (pair? old-entries)
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#~((format port "
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2014-06-25 20:54:52 +00:00
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submenu \"GNU system, old configurations...\" {~%")
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2014-11-08 14:07:18 +00:00
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#$@(map entry->gexp old-entries)
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(format port "}~%"))
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#~()))))
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2013-09-11 20:36:50 +00:00
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2014-11-08 14:07:18 +00:00
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(gexp->derivation "grub.cfg" builder)))
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2013-09-11 20:36:50 +00:00
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;;; grub.scm ends here
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