unofficial mirror of bug-guix@gnu.org 
 help / color / mirror / code / Atom feed
blob fc96ce9295468d808958941fa73469c3750aa619 16053 bytes (raw)
name: gnu/home/services/desktop.scm 	 # note: path name is non-authoritative(*)

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
 
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2022-2023 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2022 ( <paren@disroot.org>
;;; Copyright © 2023 conses <contact@conses.eu>
;;; Copyright © 2023 Janneke Nieuwenhuizen <janneke@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 home services desktop)
  #:use-module (gnu home services)
  #:use-module (gnu home services shepherd)
  #:use-module (gnu services configuration)
  #:use-module (gnu services xorg)
  #:autoload   (gnu packages glib)    (dbus)
  #:autoload   (gnu packages xdisorg) (redshift unclutter)
  #:autoload   (gnu packages xorg) (setxkbmap xmodmap)
  #:use-module (guix records)
  #:use-module (guix gexp)
  #:use-module (srfi srfi-1)
  #:use-module (ice-9 match)
  #:export (home-x11-service-type

            home-redshift-configuration
            home-redshift-configuration?
            home-redshift-service-type

            home-dbus-configuration
            home-dbus-service-type

            home-unclutter-configuration
            home-unclutter-service-type

            home-xmodmap-configuration
            home-xmodmap-service-type

            home-startx-command-service-type))

\f
;;;
;;; Waiting for X11.
;;;

(define (x11-shepherd-service delay)
  (list (shepherd-service
         (provision '(x11-display))
         (modules '((ice-9 ftw)
                    (ice-9 match)
                    (srfi srfi-1)))
         (start
          #~(lambda* (#:optional (display (getenv "DISPLAY")))
              (define x11-directory
                "/tmp/.X11-unix")

              (define (find-display delay)
                ;; Wait for an accessible socket to show up in X11-DIRECTORY,
                ;; up to DELAY seconds.
                (let loop ((attempts delay))
                  (define socket
                    (find (match-lambda
                            ((or "." "..") #f)
                            (name
                             (let ((name (in-vicinity x11-directory
                                                      name)))
                               (access? name O_RDWR))))
                          (or (scandir x11-directory) '())))

                  (if (and socket (string-prefix? "X" socket))
                      (let ((display (string-append
                                      ":" (string-drop socket 1))))
                        (format #t "X11 display server found at ~s.~%"
                                display)
                        display)
                      (if (zero? attempts)
                          (begin
                            (format (current-error-port)
                                    "X11 display server did not show up; \
giving up.\n")
                            #f)
                          (begin
                            (sleep 1)
                            (loop (- attempts 1)))))))

              (let ((display (or display (find-display #$delay))))
                (when display
                  ;; Note: 'make-forkexec-constructor' calls take their
                  ;; default #:environment-variables value before this service
                  ;; is started and are thus unaffected by the 'setenv' call
                  ;; below.  Users of this service have to explicitly query
                  ;; its value.
                  (setenv "DISPLAY" display))
                display)))
         (stop #~(lambda (_)
                   (unsetenv "DISPLAY")
                   #f))
         (respawn? #f))))

(define home-x11-service-type
  (service-type
   (name 'home-x11-display)
   (extensions (list (service-extension home-shepherd-service-type
                                        x11-shepherd-service)))
   (default-value 10)
   (description
    "Create a @code{x11-display} Shepherd service that waits for the X
Window (or ``X11'') graphical display server to be up and running, up to a
configurable delay, and sets the @code{DISPLAY} environment variable of
@command{shepherd} itself accordingly.  If no accessible X11 server shows up
during that time, the @code{x11-display} service is marked as failing to
start.")))

\f
;;;
;;; Redshift.
;;;

(define (serialize-integer field value)
  (string-append (match field
                   ('daytime-temperature "temp-day")
                   ('nighttime-temperature "temp-night")
                   ('daytime-brightness "brightness-day")
                   ('nighttime-brightness "brightness-night")
                   ('latitude "lat")
                   ('longitude "lon")
                   (_ (symbol->string field)))
                 "=" (number->string value) "\n"))

(define (serialize-symbol field value)
  (string-append (symbol->string field)
                 "=" (symbol->string value) "\n"))

(define (serialize-string field value)
  (string-append (symbol->string field)
                 "=" value "\n"))

(define serialize-inexact-number serialize-integer)

(define (inexact-number? n)
  (and (number? n) (inexact? n)))
(define-maybe inexact-number)
(define-maybe string)

(define (serialize-raw-configuration-string field value)
  value)
(define raw-configuration-string? string?)

(define-configuration home-redshift-configuration
  (redshift
   (file-like redshift)
   "Redshift package to use.")

  (location-provider
   (symbol 'geoclue2)
   "Geolocation provider---@code{'manual} or @code{'geoclue2}.

In the former case, you must also specify the @code{latitude} and
@code{longitude} fields so Redshift can determine daytime at your place.  In
the latter case, the Geoclue system service must be running; it will be
queried for location information.")
  (adjustment-method
   (symbol 'randr)
   "Color adjustment method.")

  ;; Default values from redshift(1).
  (daytime-temperature
   (integer 6500)
   "Daytime color temperature (kelvins).")
  (nighttime-temperature
   (integer 4500)
   "Nighttime color temperature (kelvins).")

  (daytime-brightness
   maybe-inexact-number
   "Daytime screen brightness, between 0.1 and 1.0.")
  (nighttime-brightness
   maybe-inexact-number
   "Nighttime screen brightness, between 0.1 and 1.0.")

  (latitude
   maybe-inexact-number
   "Latitude, when @code{location-provider} is @code{'manual}.")
  (longitude
   maybe-inexact-number
   "Longitude, when @code{location-provider} is @code{'manual}.")

  (dawn-time
   maybe-string
   "Custom time for the transition from night to day in the
morning---@code{\"HH:MM\"} format.  When specified, solar elevation is not
used to determine the daytime/nighttime period.")
  (dusk-time
   maybe-string
   "Likewise, custom time for the transition from day to night in the
evening.")

  (extra-content
   (raw-configuration-string "")
   "Extra content appended as-is to the Redshift configuration file.  Run
@command{man redshift} for more information about the configuration file
format."))

(define (serialize-redshift-configuration config)
  (define location-fields
    '(latitude longitude))

  (define (location-field? field)
    (memq (configuration-field-name field) location-fields))

  (define (secondary-field? field)
    (or (location-field? field)
        (memq (configuration-field-name field)
              '(redshift extra-content))))

  #~(string-append
     "[redshift]\n"
     #$(serialize-configuration config
                                (remove secondary-field?
                                        home-redshift-configuration-fields))

     #$(home-redshift-configuration-extra-content config)

     "\n[manual]\n"
     #$(serialize-configuration config
                                (filter location-field?
                                        home-redshift-configuration-fields))))

(define (redshift-shepherd-service config)
  (define config-file
    (computed-file "redshift.conf"
                   #~(call-with-output-file #$output
                       (lambda (port)
                         (display #$(serialize-redshift-configuration config)
                                  port)))))

  (list (shepherd-service
         (documentation "Redshift program.")
         (provision '(redshift))

         ;; Depend on 'x11-display', which sets 'DISPLAY' if an X11 server is
         ;; available, and fails to start otherwise.
         (requirement '(x11-display))

         (modules '((srfi srfi-1)
                    (srfi srfi-26)))
         (start #~(lambda _
                    (fork+exec-command
                     (list #$(file-append
                              (home-redshift-configuration-redshift config)
                              "/bin/redshift")
                           "-c" #$config-file)

                     ;; Inherit the 'DISPLAY' variable set by 'x11-display'.
                     #:environment-variables
                     (cons (string-append "DISPLAY=" (getenv "DISPLAY"))
                           (remove (cut string-prefix? "DISPLAY=" <>)
                                   (default-environment-variables))))))
         (stop #~(make-kill-destructor))
         (actions (list (shepherd-configuration-action config-file))))))

(define home-redshift-service-type
  (service-type
   (name 'home-redshift)
   (extensions (list (service-extension home-shepherd-service-type
                                        redshift-shepherd-service)
                     ;; Ensure 'home-x11-service-type' is instantiated so we
                     ;; can depend on the Shepherd 'x11-display' service.
                     (service-extension home-x11-service-type
                                        (const #t))))
   (default-value (home-redshift-configuration))
   (description
    "Run Redshift, a program that adjusts the color temperature of display
according to time of day.")))

\f
;;;
;;; D-Bus.
;;;

(define-record-type* <home-dbus-configuration>
  home-dbus-configuration make-home-dbus-configuration
  home-dbus-configuration?
  (dbus home-dbus-dbus                  ;file-like
        (default dbus)))

(define (home-dbus-shepherd-services config)
  (list (shepherd-service
         (documentation "Run the D-Bus daemon in session-specific mode.")
         (provision '(dbus))
         (modules '((shepherd support)))      ;for '%user-log-dir'
         (start #~(make-forkexec-constructor
                   (list #$(file-append (home-dbus-dbus config)
                                        "/bin/dbus-daemon")
                         "--nofork" "--session"
                         (format #f "--address=unix:path=~a/bus"
                                 (or (getenv "XDG_RUNTIME_DIR")
                                     (format #f "/run/user/~a"
                                             (getuid)))))
                   #:environment-variables
                   (cons "DBUS_VERBOSE=1"
                         (default-environment-variables))
                   #:log-file
                   (string-append %user-log-dir "/dbus.log")))
         (stop #~(make-kill-destructor)))))

(define (home-dbus-environment-variables config)
  '(("DBUS_SESSION_BUS_ADDRESS"
     . "unix:path=${XDG_RUNTIME_DIR:-/run/user/$UID}/bus")))

(define home-dbus-service-type
  (service-type
   (name 'home-dbus)
   (extensions
    (list (service-extension home-shepherd-service-type
                             home-dbus-shepherd-services)
          (service-extension home-environment-variables-service-type
                             home-dbus-environment-variables)))
   (default-value (home-dbus-configuration))
   (description
    "Run the session-specific D-Bus inter-process message bus.")))

\f
;;;
;;; Unclutter.
;;;

(define-configuration/no-serialization home-unclutter-configuration
  (unclutter
   (file-like unclutter)
   "The @code{unclutter} package to use.")
  (idle-timeout
   (integer 5)
   "Timeout in seconds after which to hide the cursor."))

(define (home-unclutter-shepherd-service config)
  (list
   (shepherd-service
    (provision '(unclutter))
    ;; Depend on 'x11-display', which sets 'DISPLAY' if an X11 server is
    ;; available, and fails to start otherwise.
    (requirement '(x11-display))
    (modules '((shepherd support) ;for %user-log-dir
               (srfi srfi-1)
               (srfi srfi-26)))
    (one-shot? #t)
    (start #~(lambda _
               (fork+exec-command
                (list
                 #$(file-append
                    (home-unclutter-configuration-unclutter config)
                    "/bin/unclutter")
                 "-idle"
                 (number->string
                  #$(home-unclutter-configuration-idle-timeout config)))
                ;; Inherit the 'DISPLAY' variable set by 'x11-display'.
                #:environment-variables
                (cons (string-append "DISPLAY=" (getenv "DISPLAY"))
                      (remove (cut string-prefix? "DISPLAY=" <>)
                              (default-environment-variables)))
                #:log-file
                (string-append %user-log-dir "/unclutter.log")))))))

(define home-unclutter-service-type
  (service-type
   (name 'home-unclutter)
   (extensions
    (list
     (service-extension home-shepherd-service-type
                        home-unclutter-shepherd-service)))
   (default-value (home-unclutter-configuration))
   (description "Run the @code{unclutter} daemon, which, on systems using the
Xorg graphical display server, automatically hides the cursor after a
user-defined timeout has expired.")))

\f
;;;
;;; Xmodmap.
;;;

(define-configuration/no-serialization home-xmodmap-configuration
  (xmodmap
   (file-like xmodmap)
   "The @code{xmodmap} package to use.")
  (key-map
   (list '())
   "List of expressions to be read by @code{xmodmap} on service startup."))

(define (serialize-xmodmap-configuration field-name val)
  (define serialize-field
    (match-lambda
      ((key . value)
       (format #f "~a = ~a" key value))
      (e e)))

  #~(string-append
     #$@(interpose (map serialize-field val) "\n" 'suffix)))

(define (xmodmap-shepherd-service config)
  (define config-file
    (mixed-text-file
     "config"
     (serialize-xmodmap-configuration
      #f (home-xmodmap-configuration-key-map config))))

  (list
   (shepherd-service
    (provision '(xmodmap))
    (start #~(make-system-constructor
              (string-join
               (list #$(file-append
                        (home-xmodmap-configuration-xmodmap config)
                        "/bin/xmodmap")
                     #$config-file))))
    (stop #~(make-system-constructor
             #$(file-append setxkbmap "/bin/setxkbmap")))
    (documentation "On startup, run @code{xmodmap} and read the expressions in
the configuration file.  On stop, reset all the mappings back to the
defaults."))))

(define home-xmodmap-service-type
  (service-type
   (name 'home-xmodmap)
   (extensions
    (list
     (service-extension home-shepherd-service-type
                        xmodmap-shepherd-service)))
   (default-value (home-xmodmap-configuration))
   (description "Run the @code{xmodmap} utility to modify keymaps and pointer
buttons under the Xorg display server via user-defined expressions.")))

\f
(define home-startx-command-service-type
  (service-type
   (inherit (system->home-service-type startx-command-service-type))
   (default-value (for-home (xorg-configuration)))))

(define-service-type-mapping
  startx-command-service-type => home-startx-command-service-type)

debug log:

solving fc96ce9295 ...
found fc96ce9295 in https://git.savannah.gnu.org/cgit/guix.git

(*) Git path names are given by the tree(s) the blob belongs to.
    Blobs themselves have no identifier aside from the hash of its contents.^

Code repositories for project(s) associated with this public inbox

	https://git.savannah.gnu.org/cgit/guix.git

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).