unofficial mirror of guix-patches@gnu.org 
 help / color / mirror / code / Atom feed
blob 4d69daaa4963cc9374fd05aa790cba3e4b84275e 12208 bytes (raw)
name: gnu/services/lightdm.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
 
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2019,2020 L  p R n  d n   <guix@lprndn.info>
;;;
;;; 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 services lightdm)
  #:use-module (guix gexp)
  #:use-module (guix records)

  #:use-module (gnu system pam)
  #:use-module (gnu system shadow)

  #:use-module (gnu services)
  #:use-module (gnu services dbus)
  #:use-module (gnu services desktop)
  #:use-module (gnu services shepherd)
  #:use-module (gnu services xorg)

  #:use-module (gnu packages admin)
  #:use-module (gnu packages display-managers)
  #:use-module (gnu packages freedesktop)
  #:use-module (gnu packages gnome)
  #:use-module (gnu packages xorg)

  #:export (lightdm-configuration
            lightdm-configuration?
            lightdm-service-type
            lightdm-gtk-greeter-configuration
            lightdm-gtk-greeter-configuration-file))

;; GREETERS

(define-record-type* <lightdm-gtk-greeter-configuration>
  lightdm-gtk-greeter-configuration make-lightdm-gtk-greeter-configuration
  lightdm-gtk-greeter-configuration?
  (theme-name lightdm-gtk-greeter-configuration-theme-name
              (default "Adwaita"))
  (icon-theme-name
   lightdm-gtk-greeter-configuration-icon-theme-name
   (default "Adwaita"))
  (cursor-theme-name
   lightdm-gtk-greeter-configuration-cursor-theme-name
   (default "Adwaita"))
  (cursor-size lightdm-gtk-greeter-configuration-cursor-size
               (default 16))
  (background lightdm-gtk-greeter-configuration-background
              (default ""))
  (extra-config lightdm-gtk-greeter-configuration-extra-config
                 (default "")))

(define (lightdm-gtk-greeter-configuration-file config)
  (mixed-text-file "lightdm-gtk-greeter.conf" "
[greeter]
theme-name = " (lightdm-gtk-greeter-configuration-theme-name config) "
icon-theme-name = "
(lightdm-gtk-greeter-configuration-icon-theme-name config) "
cursor-theme-name = "
(lightdm-gtk-greeter-configuration-cursor-theme-name config) "
cursor-theme-size = " (number->string
                       (lightdm-gtk-greeter-configuration-cursor-size config))
(if (string-null? (lightdm-gtk-greeter-configuration-background config)) ""
    (string-append "
background = " (lightdm-gtk-greeter-configuration-background config))) "
" (lightdm-gtk-greeter-configuration-extra-config config)))

;; LIGHTDM

(define-record-type* <lightdm-configuration>
  lightdm-configuration make-lightdm-configuration
  lightdm-configuration?

  (lightdm lightdm-configuration-lightdm
           (default lightdm))
  (sessions-directory
   lightdm-configuration-sessions-directory
   (default (string-append
             "/run/current-system/profile/share/xsessions"
             ":/run/current-system/profile/share/wayland-sessions")))
  (allow-empty-passwords? lightdm-configuration-allow-empty-passwords?
                          (default #f))
  ;; [Seat]
  (xorg-configuration lightdm-configuration-xorg
                      (default (xorg-configuration)))
  (session-wrapper lightdm-configuration-session-wrapper
                   (default (xinitrc)))
  (default-session-name lightdm-configuration-default-session
    (default ""))

  ;; [Autologin]
  (autologin-user lightdm-configuration-autologin-user
                  (default ""))
  (autologin-timeout lightdm-configuration-autologin-timeout
                     (default #f))
  ;; [Greeter]
  (greeter-name lightdm-configuration-greeter-name
                (default "lightdm-gtk-greeter"))
  (greeter-package lightdm-configuration-greeter-package
                   (default lightdm-gtk-greeter))
  (greeter-assets lightdm-configuration-greeter-assets
                  (default (list adwaita-icon-theme
                                 gnome-themes-standard)))
  (greeter-configuration-file lightdm-configuration-greeter-configuration-file
                              (default (lightdm-gtk-greeter-configuration-file
                                        (lightdm-gtk-greeter-configuration))))
  (extra-config lightdm-configuration-extra-config
                 (default "")))

(define %lightdm-accounts
  (list (user-group (name "lightdm") (system? #t))
        (user-account
         (name "lightdm")
         (group "lightdm")
         (system? #t)
         (comment "LightDM user")
         (home-directory "/var/lib/lightdm")
         (shell (file-append shadow "/sbin/nologin")))))

(define %lightdm-activation
  ;; Ensure /var/lib/lightdm is owned by the "lightdm" user.
  ;; Mimics what is done for gdm
  ;; see a43e9157ef479e94c19951cc9d228cf153bf78ee
  (with-imported-modules '((guix build utils))
    #~(begin
        (use-modules (guix build utils))

        (define (ensure-ownership directory)
          (let* ((lightdm (getpwnam "lightdm"))
                 (uid (passwd:uid lightdm))
                 (gid (passwd:gid lightdm))
                 (st  (stat directory #f)))
            ;; Recurse into directory only if it has wrong ownership.
            (when (and st
                       (or (not (= uid (stat:uid st)))
                           (not (= gid (stat:gid st)))))
              (for-each (lambda (file)
                          (chown file uid gid))
                        (find-files "directory"
                                    #:directories? #t)))))

        (when (not (stat "/var/lib/lightdm-data" #f))
          (mkdir-p "/var/lib/lightdm-data"))
        (for-each ensure-ownership
                  '("/var/lib/lightdm"
                    "/var/lib/lightdm-data")))))

(define (lightdm-configuration-file config)
  (mixed-text-file "lightdm.conf" "
[LightDM]
greeter-user = lightdm
greeters-directory = /run/current-system/profile/share/xgreeters
sessions-directory = "  (lightdm-configuration-sessions-directory config) "


[Seat:*]
xserver-command = "  (xorg-start-command (lightdm-configuration-xorg config)) "
greeter-session = "       (lightdm-configuration-greeter-name config) "
user-session = "          (lightdm-configuration-default-session config)
(if (string-null? (lightdm-configuration-autologin-user config)) ""
    (string-append "
autologin-user = " (lightdm-configuration-autologin-user config)))
(if (string-null? (lightdm-configuration-default-session config)) ""
    (string-append "
autologin-session = " (lightdm-configuration-default-session config)))
(if (lightdm-configuration-autologin-timeout config)
    (string-append "
autologin-user-timeout = " (number->string
                            (lightdm-configuration-autologin-timeout config)))
    "") "
session-wrapper = " (lightdm-configuration-session-wrapper config) "
" (lightdm-configuration-extra-config config)))


(define (lightdm-pam-service config)
  "Return a PAM service for @command{lightdm}."
  (unix-pam-service
   "lightdm"
   #:allow-empty-passwords?
   (lightdm-configuration-allow-empty-passwords? config)))


(define (lightdm-greeter-pam-service)
  "Return a PAM service for @command{lightdm-greeter}}."
  (pam-service
   (name "lightdm-greeter")
   (auth
    (list
     ;; Load environment from /etc/environment and ~/.pam_environment
     (pam-entry (control "required") (module "pam_env.so"))
     ;; Always let the greeter start without authentication
     (pam-entry (control "required") (module "pam_permit.so"))))
   ;; No action required for account management
   (account
    (list
     (pam-entry (control "required") (module "pam_permit.so"))))
   ;; Can't change password
   (password
    (list
     (pam-entry (control "required") (module "pam_deny.so"))))
   ;; Setup session
   (session
    (list
     (pam-entry (control "required") (module "pam_unix.so"))
     (pam-entry (control "required") (module "pam_env.so"))))))


(define (lightdm-autologin-pam-service)
  "Return a PAM service for @command{lightdm-autologin}}."
  (pam-service
   (name "lightdm-autologin")
   (auth
    (list
     ;; Block login if they are globally disabled
     (pam-entry (control "required") (module "pam_nologin.so"))
     ;; Load environment from /etc/environment and ~/.pam_environment
     (pam-entry (control "required") (module "pam_env.so"))
     ;; Allow access without authentication
     (pam-entry (control "required") (module "pam_permit.so"))))
   ;; Stop autologin if account requires action
   (account
    (list
     (pam-entry (control "required") (module "pam_unix.so"))))
   ;; Can't change password
   (password
    (list
     (pam-entry (control "required") (module "pam_deny.so"))))
   ;; Setup session
   (session
    (list
     (pam-entry (control "required") (module "pam_unix.so"))))))

(define (lightdm-shepherd-service config)
  "Return a <lightdm-service> for LightDM with CONFIG."

  (define lightdm-command
    #~(list #$(file-append (lightdm-configuration-lightdm config)
                           "/sbin/lightdm")))
 
  (list (shepherd-service
         (documentation "LightDM display manager.")
         (requirement '(dbus-system user-processes host-name))
         (provision '(display-manager))
         (respawn? #f)
         (start #~(lambda ()
                    (fork+exec-command
                     #$lightdm-command
                     #:environment-variables
                     (list
                      (string-append
                       "PATH=/run/current-system/profile/sbin"
                       ":/run/current-system/profile/bin")))))
         (stop #~(make-kill-destructor)))))

(define (lightdm-etc-service config)
  (let ((lightdm-conf-file
         (lightdm-configuration-file config))
        (greeter-conf-file
         (lightdm-configuration-greeter-configuration-file config)))
    (if greeter-conf-file
        (list `("xdg/lightdm/lightdm.conf.d/lightdm.conf"
                ,lightdm-conf-file)
              `(,(string-append
                  "xdg/lightdm/" (computed-file-name greeter-conf-file))
                ,greeter-conf-file))
        (list  `("xdg/lightdm/lightdm.conf.d/lightdm.conf"
                ,lightdm-conf-file)))))

(define (lightdm-pam-services config)
  (list (lightdm-pam-service config)
        (lightdm-greeter-pam-service)
        (lightdm-autologin-pam-service)))

(define (lightdm-profile-service config)
  (append (list lightdm
                (lightdm-configuration-greeter-package config))
          (lightdm-configuration-greeter-assets config)))

(define lightdm-service-type
  (handle-xorg-configuration lightdm-configuration
   (service-type (name 'lightdm)
                 (extensions
                  (list
                   (service-extension shepherd-root-service-type
                                      lightdm-shepherd-service)
                   (service-extension activation-service-type
                                      (const %lightdm-activation))
                   (service-extension etc-service-type
                                      lightdm-etc-service)
                   (service-extension pam-root-service-type
                                      lightdm-pam-services)
                   (service-extension dbus-root-service-type
                                      (compose list
                                               lightdm-configuration-lightdm))
                   (service-extension account-service-type
                                      (const %lightdm-accounts))
                   (service-extension profile-service-type
                                      lightdm-profile-service)))
                 (default-value (lightdm-configuration))
                 (description "Return a service that spawns the
 LightDM graphical login manager."))))

debug log:

solving 4d69daaa49 ...
found 4d69daaa49 in https://yhetil.org/guix-patches/87sghcir5k.fsf@lprndn.info/

applying [1/1] https://yhetil.org/guix-patches/87sghcir5k.fsf@lprndn.info/
diff --git a/gnu/services/lightdm.scm b/gnu/services/lightdm.scm
new file mode 100644
index 0000000000..4d69daaa49

1:257: trailing whitespace.
 
Checking patch gnu/services/lightdm.scm...
Applied patch gnu/services/lightdm.scm cleanly.
warning: 1 line adds whitespace errors.

index at:
100644 4d69daaa4963cc9374fd05aa790cba3e4b84275e	gnu/services/lightdm.scm

(*) 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).