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1 | ;;; GNU Guix --- Functional package management for GNU |
2 | ;;; Copyright © 2013, 2014 Ludovic Courtès <ludo@gnu.org> | |
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 services xorg) | |
20 | #:use-module (gnu services) | |
21 | #:use-module (gnu system linux) ; 'pam-service' | |
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22 | #:use-module ((gnu packages base) #:select (canonical-package)) |
23 | #:use-module (gnu packages guile) | |
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24 | #:use-module (gnu packages xorg) |
25 | #:use-module (gnu packages gl) | |
26 | #:use-module (gnu packages slim) | |
27 | #:use-module (gnu packages ratpoison) | |
9e4eddb4 | 28 | #:use-module (gnu packages gnustep) |
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29 | #:use-module (gnu packages admin) |
30 | #:use-module (gnu packages bash) | |
b5f4e686 | 31 | #:use-module (guix gexp) |
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32 | #:use-module (guix monads) |
33 | #:use-module (guix derivations) | |
d2e59637 LC |
34 | #:use-module (srfi srfi-1) |
35 | #:use-module (srfi srfi-26) | |
36 | #:use-module (ice-9 match) | |
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37 | #:export (xorg-start-command |
38 | slim-service)) | |
39 | ||
40 | ;;; Commentary: | |
41 | ;;; | |
42 | ;;; Services that relate to the X Window System. | |
43 | ;;; | |
44 | ;;; Code: | |
45 | ||
46 | (define* (xorg-start-command #:key | |
bdb36958 | 47 | (guile (canonical-package guile-2.0)) |
f703413e | 48 | (xorg-server xorg-server) |
d2e59637 | 49 | (drivers '()) (resolutions '())) |
f703413e LC |
50 | "Return a derivation that builds a @var{guile} script to start the X server |
51 | from @var{xorg-server}. Usually the X server is started by a login manager. | |
52 | ||
53 | @var{drivers} must be either the empty list, in which case Xorg chooses a | |
54 | graphics driver automatically, or a list of driver names that will be tried in | |
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55 | this order---e.g., @code{(\"modesetting\" \"vesa\")}. |
56 | ||
57 | Likewise, when @var{resolutions} is the empty list, Xorg chooses an | |
58 | appropriate screen resolution; otherwise, it must be a list of | |
59 | resolutions---e.g., @code{((1024 768) (640 480))}." | |
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60 | |
61 | (define (device-section driver) | |
62 | (string-append " | |
63 | Section \"Device\" | |
64 | Identifier \"device-" driver "\" | |
65 | Driver \"" driver "\" | |
66 | EndSection")) | |
db4fdc04 | 67 | |
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68 | (define (screen-section driver resolutions) |
69 | (string-append " | |
70 | Section \"Screen\" | |
71 | Identifier \"screen-" driver "\" | |
72 | Device \"device-" driver "\" | |
73 | SubSection \"Display\" | |
74 | Modes " | |
75 | (string-join (map (match-lambda | |
76 | ((x y) | |
77 | (string-append "\"" (number->string x) | |
78 | "x" (number->string y) "\""))) | |
79 | resolutions)) " | |
80 | EndSubSection | |
81 | EndSection")) | |
82 | ||
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83 | (define (xserver.conf) |
84 | (text-file* "xserver.conf" " | |
85 | Section \"Files\" | |
378377eb | 86 | FontPath \"" font-adobe75dpi "/share/fonts/X11/75dpi\" |
db4fdc04 | 87 | ModulePath \"" xf86-video-vesa "/lib/xorg/modules/drivers\" |
0adb027b | 88 | ModulePath \"" xf86-video-fbdev "/lib/xorg/modules/drivers\" |
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89 | # FIXME: Commented out due to libdrm incompatibility. |
90 | # ModulePath \"" xf86-video-modesetting "/lib/xorg/modules/drivers\" | |
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91 | ModulePath \"" xf86-video-cirrus "/lib/xorg/modules/drivers\" |
92 | ModulePath \"" xf86-video-intel "/lib/xorg/modules/drivers\" | |
93 | ModulePath \"" xf86-video-mach64 "/lib/xorg/modules/drivers\" | |
94 | ModulePath \"" xf86-video-nv "/lib/xorg/modules/drivers\" | |
db4fdc04 | 95 | ModulePath \"" xf86-input-keyboard "/lib/xorg/modules/input\" |
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96 | ModulePath \"" xf86-input-mouse "/lib/xorg/modules/input\" |
97 | ModulePath \"" xf86-input-synaptics "/lib/xorg/modules/input\" | |
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98 | ModulePath \"" xorg-server "/lib/xorg/modules\" |
99 | ModulePath \"" xorg-server "/lib/xorg/modules/extensions\" | |
100 | ModulePath \"" xorg-server "/lib/xorg/modules/multimedia\" | |
101 | EndSection | |
102 | ||
103 | Section \"ServerFlags\" | |
e30442b5 | 104 | Option \"AllowMouseOpenFail\" \"on\" |
db4fdc04 | 105 | EndSection |
f703413e | 106 | " |
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107 | (string-join (map device-section drivers) "\n") |
108 | (string-join (map (cut screen-section <> resolutions) | |
109 | drivers) | |
110 | "\n"))) | |
db4fdc04 | 111 | |
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112 | (mlet %store-monad ((config (xserver.conf))) |
113 | (define script | |
db4fdc04 | 114 | ;; Write a small wrapper around the X server. |
8779d342 LC |
115 | #~(begin |
116 | (setenv "XORG_DRI_DRIVER_PATH" (string-append #$mesa "/lib/dri")) | |
117 | (setenv "XKB_BINDIR" (string-append #$xkbcomp "/bin")) | |
118 | ||
119 | (apply execl (string-append #$xorg-server "/bin/X") | |
91cc5aff | 120 | (string-append #$xorg-server "/bin/X") ;argv[0] |
594340bc | 121 | "-logverbose" "-verbose" |
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122 | "-xkbdir" (string-append #$xkeyboard-config "/share/X11/xkb") |
123 | "-config" #$config | |
124 | "-nolisten" "tcp" "-terminate" | |
125 | ||
126 | ;; Note: SLiM and other display managers add the | |
127 | ;; '-auth' flag by themselves. | |
128 | (cdr (command-line))))) | |
129 | ||
130 | (gexp->script "start-xorg" script))) | |
db4fdc04 | 131 | |
9e4eddb4 | 132 | (define* (xinitrc #:key |
bdb36958 | 133 | (guile (canonical-package guile-2.0)) |
9e4eddb4 LC |
134 | (ratpoison ratpoison) |
135 | (windowmaker windowmaker)) | |
136 | "Return a system-wide xinitrc script that starts the specified X session." | |
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137 | (define builder |
138 | #~(begin | |
139 | (use-modules (ice-9 match)) | |
140 | ||
d9372161 LC |
141 | ;; First, try to run ~/.xsession. |
142 | (let* ((home (getenv "HOME")) | |
143 | (file (string-append home "/.xsession"))) | |
144 | (false-if-exception (execl file file))) | |
145 | ||
146 | ;; Then try a pre-configured session type. | |
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147 | (match (command-line) |
148 | ((_ "ratpoison") | |
149 | (execl (string-append #$ratpoison "/bin/ratpoison"))) | |
150 | (_ | |
151 | (execl (string-append #$windowmaker "/bin/wmaker")))))) | |
152 | ||
153 | (gexp->script "xinitrc" builder)) | |
9e4eddb4 | 154 | |
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155 | (define* (slim-service #:key (slim slim) |
156 | (allow-empty-passwords? #t) auto-login? | |
157 | (default-user "") | |
158 | (xauth xauth) (dmd dmd) (bash bash) | |
159 | startx) | |
160 | "Return a service that spawns the SLiM graphical login manager, which in | |
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161 | turn starts the X display server with @var{startx}, a command as returned by |
162 | @code{xorg-start-command}. | |
db4fdc04 | 163 | |
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164 | When @var{allow-empty-passwords?} is true, allow logins with an empty |
165 | password. When @var{auto-login?} is true, log in automatically as | |
166 | @var{default-user}." | |
db4fdc04 | 167 | (define (slim.cfg) |
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168 | (mlet %store-monad ((startx (or startx (xorg-start-command))) |
169 | (xinitrc (xinitrc))) | |
db4fdc04 | 170 | (text-file* "slim.cfg" " |
b4140694 | 171 | default_path /run/current-system/profile/bin |
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172 | default_xserver " startx " |
173 | xserver_arguments :0 vt7 | |
174 | xauth_path " xauth "/bin/xauth | |
175 | authfile /var/run/slim.auth | |
176 | ||
177 | # The login command. '%session' is replaced by the chosen session name, one | |
178 | # of the names specified in the 'sessions' setting: 'wmaker', 'xfce', etc. | |
057d6ce5 | 179 | login_cmd exec " xinitrc " %session |
9e4eddb4 | 180 | sessions wmaker,ratpoison |
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181 | |
182 | halt_cmd " dmd "/sbin/halt | |
183 | reboot_cmd " dmd "/sbin/reboot | |
184 | " (if auto-login? | |
185 | (string-append "auto_login yes\ndefault_user " default-user) | |
186 | "")))) | |
187 | ||
b5f4e686 | 188 | (mlet %store-monad ((slim.cfg (slim.cfg))) |
db4fdc04 LC |
189 | (return |
190 | (service | |
191 | (documentation "Xorg display server") | |
192 | (provision '(xorg-server)) | |
8dbab712 | 193 | (requirement '(user-processes host-name udev)) |
db4fdc04 | 194 | (start |
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195 | #~(lambda () |
196 | ;; A stale lock file can prevent SLiM from starting, so remove it | |
197 | ;; to be on the safe side. | |
198 | (false-if-exception (delete-file "/var/run/slim.lock")) | |
199 | ||
200 | (fork+exec-command | |
201 | (list (string-append #$slim "/bin/slim") "-nodaemon") | |
202 | #:environment-variables | |
203 | (list (string-append "SLIM_CFGFILE=" #$slim.cfg))))) | |
b5f4e686 | 204 | (stop #~(make-kill-destructor)) |
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205 | (respawn? #t) |
206 | (pam-services | |
207 | ;; Tell PAM about 'slim'. | |
208 | (list (unix-pam-service | |
209 | "slim" | |
210 | #:allow-empty-passwords? allow-empty-passwords?))))))) | |
211 | ||
212 | ;;; xorg.scm ends here |