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0ded70f3 | 1 | ;;; GNU Guix --- Functional package management for GNU |
735c6dd7 | 2 | ;;; Copyright © 2013, 2014 Ludovic Courtès <ludo@gnu.org> |
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3 | ;;; |
4 | ;;; This file is part of GNU Guix. | |
5 | ;;; | |
6 | ;;; GNU Guix is free software; you can redistribute it and/or modify it | |
7 | ;;; under the terms of the GNU General Public License as published by | |
8 | ;;; the Free Software Foundation; either version 3 of the License, or (at | |
9 | ;;; your option) any later version. | |
10 | ;;; | |
11 | ;;; GNU Guix is distributed in the hope that it will be useful, but | |
12 | ;;; WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | ;;; GNU General Public License for more details. | |
15 | ;;; | |
16 | ;;; You should have received a copy of the GNU General Public License | |
17 | ;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>. | |
18 | ||
19 | (define-module (gnu system grub) | |
20 | #:use-module (guix store) | |
21 | #:use-module (guix packages) | |
22 | #:use-module (guix derivations) | |
23 | #:use-module (guix records) | |
d9f0a237 | 24 | #:use-module (guix monads) |
f6a7b21d | 25 | #:use-module (guix gexp) |
99ae9ceb | 26 | #:use-module (guix download) |
84dfb458 | 27 | #:use-module (gnu artwork) |
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28 | #:autoload (gnu packages grub) (grub) |
29 | #:autoload (gnu packages inkscape) (inkscape) | |
30 | #:autoload (gnu packages imagemagick) (imagemagick) | |
31 | #:autoload (gnu packages compression) (gzip) | |
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32 | #:use-module (ice-9 match) |
33 | #:use-module (srfi srfi-1) | |
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34 | #:export (grub-image |
35 | grub-image? | |
36 | grub-image-aspect-ratio | |
37 | grub-image-file | |
38 | ||
39 | grub-theme | |
40 | grub-theme? | |
41 | grub-theme-images | |
42 | grub-theme-color-normal | |
43 | grub-theme-color-highlight | |
44 | ||
45 | %background-image | |
46 | %default-theme | |
47 | ||
48 | grub-configuration | |
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49 | grub-configuration? |
50 | grub-configuration-device | |
51 | ||
52 | menu-entry | |
0ded70f3 | 53 | menu-entry? |
d5b429ab | 54 | |
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55 | grub-configuration-file)) |
56 | ||
57 | ;;; Commentary: | |
58 | ;;; | |
59 | ;;; Configuration of GNU GRUB. | |
60 | ;;; | |
61 | ;;; Code: | |
62 | ||
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63 | (define-record-type* <grub-image> |
64 | grub-image make-grub-image | |
65 | grub-image? | |
66 | (aspect-ratio grub-image-aspect-ratio ;rational number | |
67 | (default 4/3)) | |
68 | (file grub-image-file)) ;file-valued gexp (SVG) | |
69 | ||
70 | (define-record-type* <grub-theme> | |
71 | grub-theme make-grub-theme | |
72 | grub-theme? | |
73 | (images grub-theme-images | |
74 | (default '())) ;list of <grub-image> | |
75 | (color-normal grub-theme-color-normal | |
76 | (default '((fg . cyan) (bg . blue)))) | |
77 | (color-highlight grub-theme-color-highlight | |
78 | (default '((fg . white) (bg . blue))))) | |
79 | ||
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80 | (define %background-image |
81 | (grub-image | |
82 | (aspect-ratio 4/3) | |
83 | (file #~(string-append #$%artwork-repository "/grub/guix-4-3.svg")))) | |
84 | ||
85 | (define %default-theme | |
86 | ;; Default theme contributed by Felipe López. | |
87 | (grub-theme | |
88 | (images (list %background-image)) | |
28567712 | 89 | (color-highlight '((fg . cyan) (bg . black))) ;XXX: fg should be #x3bb7f5 |
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90 | (color-normal '((fg . light-gray) (bg . black))))) ;XXX: #x303030 |
91 | ||
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92 | (define-record-type* <grub-configuration> |
93 | grub-configuration make-grub-configuration | |
94 | grub-configuration? | |
95 | (grub grub-configuration-grub ; package | |
96 | (default (@ (gnu packages grub) grub))) | |
97 | (device grub-configuration-device) ; string | |
98 | (menu-entries grub-configuration-menu-entries ; list | |
99 | (default '())) | |
100 | (default-entry grub-configuration-default-entry ; integer | |
2f7f3200 | 101 | (default 0)) |
d5b429ab | 102 | (timeout grub-configuration-timeout ; integer |
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103 | (default 5)) |
104 | (theme grub-configuration-theme ; <grub-theme> | |
105 | (default %default-theme))) | |
d5b429ab | 106 | |
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107 | (define-record-type* <menu-entry> |
108 | menu-entry make-menu-entry | |
109 | menu-entry? | |
110 | (label menu-entry-label) | |
111 | (linux menu-entry-linux) | |
112 | (linux-arguments menu-entry-linux-arguments | |
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113 | (default '())) ; list of string-valued gexps |
114 | (initrd menu-entry-initrd)) ; file name of the initrd as a gexp | |
0ded70f3 | 115 | |
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116 | \f |
117 | ;;; | |
118 | ;;; Background image & themes. | |
119 | ;;; | |
120 | ||
121 | (define (svg->png svg) | |
122 | "Build a PNG from SVG." | |
123 | ;; Don't use #:local-build? so that it's substitutable. | |
124 | (gexp->derivation "grub-image.png" | |
125 | #~(zero? | |
126 | (system* (string-append #$inkscape "/bin/inkscape") | |
127 | "--without-gui" | |
128 | (string-append "--export-png=" #$output) | |
129 | #$svg)))) | |
130 | ||
131 | (define (resize-image image width height) | |
132 | "Resize IMAGE to WIDTHxHEIGHT." | |
133 | ;; Don't use #:local-build? so that it's substitutable. | |
134 | (let ((size (string-append (number->string width) | |
135 | "x" (number->string height)))) | |
136 | (gexp->derivation "grub-image.resized.png" | |
137 | #~(zero? | |
138 | (system* (string-append #$imagemagick "/bin/convert") | |
139 | "-resize" #$size #$image #$output))))) | |
140 | ||
141 | (define* (grub-background-image config #:key (width 640) (height 480)) | |
142 | "Return the GRUB background image defined in CONFIG with a ratio of | |
143 | WIDTH/HEIGHT, or #f if none was found." | |
144 | (let* ((ratio (/ width height)) | |
145 | (image (find (lambda (image) | |
146 | (= (grub-image-aspect-ratio image) ratio)) | |
147 | (grub-theme-images (grub-configuration-theme config))))) | |
148 | (if image | |
149 | (mlet %store-monad ((png (svg->png (grub-image-file image)))) | |
150 | (resize-image png width height)) | |
151 | (with-monad %store-monad | |
152 | (return #f))))) | |
153 | ||
154 | (define (eye-candy config port) | |
155 | "Return in %STORE-MONAD a gexp that writes to PORT (a port-valued gexp) the | |
156 | 'grub.cfg' part concerned with graphics mode, background images, colors, and | |
157 | all that." | |
158 | (define (theme-colors type) | |
159 | (let* ((theme (grub-configuration-theme config)) | |
160 | (colors (type theme))) | |
161 | (string-append (symbol->string (assoc-ref colors 'fg)) "/" | |
162 | (symbol->string (assoc-ref colors 'bg))))) | |
163 | ||
164 | (mlet* %store-monad ((image (grub-background-image config))) | |
165 | (return (and image #~(format #$port " | |
166 | function load_video { | |
167 | insmod vbe | |
168 | insmod vga | |
169 | insmod video_bochs | |
170 | insmod video_cirrus | |
171 | } | |
172 | ||
173 | if loadfont ~a/share/grub/unicode.pf2; then | |
174 | set gfxmode=640x480 | |
175 | load_video | |
176 | insmod gfxterm | |
177 | terminal_output gfxterm | |
178 | fi | |
179 | ||
180 | insmod png | |
181 | if background_image ~a; then | |
182 | set color_normal=~a | |
183 | set color_highlight=~a | |
184 | else | |
185 | set menu_color_normal=cyan/blue | |
186 | set menu_color_highlight=white/blue | |
187 | fi~%" | |
188 | #$grub | |
189 | #$image | |
190 | #$(theme-colors grub-theme-color-normal) | |
191 | #$(theme-colors grub-theme-color-highlight)))))) | |
192 | ||
193 | \f | |
194 | ;;; | |
195 | ;;; Configuration file. | |
196 | ;;; | |
197 | ||
d5b429ab | 198 | (define* (grub-configuration-file config entries |
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199 | #:key |
200 | (system (%current-system)) | |
201 | (old-entries '())) | |
d5b429ab | 202 | "Return the GRUB configuration file corresponding to CONFIG, a |
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203 | <grub-configuration> object. OLD-ENTRIES is taken to be a list of menu |
204 | entries corresponding to old generations of the system." | |
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205 | (define all-entries |
206 | (append entries (grub-configuration-menu-entries config))) | |
207 | ||
f6a7b21d | 208 | (define entry->gexp |
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209 | (match-lambda |
210 | (($ <menu-entry> label linux arguments initrd) | |
f6a7b21d | 211 | #~(format port "menuentry ~s { |
6c777cf8 LC |
212 | # Set 'root' to the partition that contains the kernel. |
213 | search --file --set ~a/bzImage~% | |
214 | ||
f6a7b21d | 215 | linux ~a/bzImage ~a |
d9f0a237 | 216 | initrd ~a |
0ded70f3 | 217 | }~%" |
f6a7b21d | 218 | #$label |
6c777cf8 | 219 | #$linux #$linux (string-join (list #$@arguments)) |
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220 | #$initrd)))) |
221 | ||
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222 | (mlet %store-monad ((sugar (eye-candy config #~port))) |
223 | (define builder | |
224 | #~(call-with-output-file #$output | |
225 | (lambda (port) | |
226 | #$sugar | |
227 | (format port " | |
f6a7b21d | 228 | set default=~a |
6c777cf8 | 229 | set timeout=~a~%" |
99ae9ceb | 230 | #$(grub-configuration-default-entry config) |
6c777cf8 | 231 | #$(grub-configuration-timeout config)) |
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232 | #$@(map entry->gexp all-entries) |
233 | ||
234 | #$@(if (pair? old-entries) | |
235 | #~((format port " | |
fe6e3fe2 | 236 | submenu \"GNU system, old configurations...\" {~%") |
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237 | #$@(map entry->gexp old-entries) |
238 | (format port "}~%")) | |
239 | #~())))) | |
0ded70f3 | 240 | |
99ae9ceb | 241 | (gexp->derivation "grub.cfg" builder))) |
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242 | |
243 | ;;; grub.scm ends here |