-;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2013, 2014, 2015 Ludovic Courtès <ludo@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 services xorg)
- #:use-module (gnu artwork)
- #:use-module (gnu services)
- #:use-module (gnu system linux) ; 'pam-service'
- #:use-module ((gnu packages base) #:select (canonical-package))
- #:use-module (gnu packages guile)
- #:use-module (gnu packages xorg)
- #:use-module (gnu packages gl)
- #:use-module (gnu packages slim)
- #:use-module (gnu packages ratpoison)
- #:use-module (gnu packages gnustep)
- #:use-module (gnu packages admin)
- #:use-module (gnu packages bash)
- #:use-module (guix gexp)
- #:use-module (guix store)
- #:use-module (guix monads)
- #:use-module (guix derivations)
- #:use-module (srfi srfi-1)
- #:use-module (srfi srfi-26)
- #:use-module (ice-9 match)
- #:export (xorg-start-command
- %default-xsessions
- %default-slim-theme
- %default-slim-theme-name
- slim-service))
-
-;;; Commentary:
-;;;
-;;; Services that relate to the X Window System.
-;;;
-;;; Code:
-
-(define* (xorg-start-command #:key
- (guile (canonical-package guile-2.0))
- (xorg-server xorg-server)
- (drivers '()) (resolutions '()))
- "Return a derivation that builds a @var{guile} script to start the X server
-from @var{xorg-server}. Usually the X server is started by a login manager.
-
-@var{drivers} must be either the empty list, in which case Xorg chooses a
-graphics driver automatically, or a list of driver names that will be tried in
-this order---e.g., @code{(\"modesetting\" \"vesa\")}.
-
-Likewise, when @var{resolutions} is the empty list, Xorg chooses an
-appropriate screen resolution; otherwise, it must be a list of
-resolutions---e.g., @code{((1024 768) (640 480))}."
-
- (define (device-section driver)
- (string-append "
-Section \"Device\"
- Identifier \"device-" driver "\"
- Driver \"" driver "\"
-EndSection"))
-
- (define (screen-section driver resolutions)
- (string-append "
-Section \"Screen\"
- Identifier \"screen-" driver "\"
- Device \"device-" driver "\"
- SubSection \"Display\"
- Modes "
- (string-join (map (match-lambda
- ((x y)
- (string-append "\"" (number->string x)
- "x" (number->string y) "\"")))
- resolutions)) "
- EndSubSection
-EndSection"))
-
- (define (xserver.conf)
- (text-file* "xserver.conf" "
-Section \"Files\"
- FontPath \"" font-adobe75dpi "/share/fonts/X11/75dpi\"
- ModulePath \"" xf86-video-vesa "/lib/xorg/modules/drivers\"
- ModulePath \"" xf86-video-fbdev "/lib/xorg/modules/drivers\"
- ModulePath \"" xf86-video-modesetting "/lib/xorg/modules/drivers\"
- ModulePath \"" xf86-video-cirrus "/lib/xorg/modules/drivers\"
- ModulePath \"" xf86-video-intel "/lib/xorg/modules/drivers\"
- ModulePath \"" xf86-video-mach64 "/lib/xorg/modules/drivers\"
- ModulePath \"" xf86-video-nv "/lib/xorg/modules/drivers\"
- ModulePath \"" xf86-video-sis "/lib/xorg/modules/drivers\"
- ModulePath \"" xf86-input-evdev "/lib/xorg/modules/input\"
- ModulePath \"" xf86-input-keyboard "/lib/xorg/modules/input\"
- ModulePath \"" xf86-input-mouse "/lib/xorg/modules/input\"
- ModulePath \"" xf86-input-synaptics "/lib/xorg/modules/input\"
- ModulePath \"" xorg-server "/lib/xorg/modules\"
- ModulePath \"" xorg-server "/lib/xorg/modules/extensions\"
- ModulePath \"" xorg-server "/lib/xorg/modules/multimedia\"
-EndSection
-
-Section \"ServerFlags\"
- Option \"AllowMouseOpenFail\" \"on\"
-EndSection
-"
- (string-join (map device-section drivers) "\n")
- (string-join (map (cut screen-section <> resolutions)
- drivers)
- "\n")))
-
- (mlet %store-monad ((config (xserver.conf)))
- (define script
- ;; Write a small wrapper around the X server.
- #~(begin
- (setenv "XORG_DRI_DRIVER_PATH" (string-append #$mesa "/lib/dri"))
- (setenv "XKB_BINDIR" (string-append #$xkbcomp "/bin"))
-
- (apply execl (string-append #$xorg-server "/bin/X")
- (string-append #$xorg-server "/bin/X") ;argv[0]
- "-logverbose" "-verbose"
- "-xkbdir" (string-append #$xkeyboard-config "/share/X11/xkb")
- "-config" #$config
- "-nolisten" "tcp" "-terminate"
-
- ;; Note: SLiM and other display managers add the
- ;; '-auth' flag by themselves.
- (cdr (command-line)))))
-
- (gexp->script "start-xorg" script)))
-
-(define* (xinitrc #:key
- (guile (canonical-package guile-2.0))
- fallback-session)
- "Return a system-wide xinitrc script that starts the specified X session,
-which should be passed to this script as the first argument. If not, the
-@var{fallback-session} will be used."
- (define builder
- #~(begin
- (use-modules (ice-9 match))
-
- (define (exec-from-login-shell command . args)
- ;; Run COMMAND from a login shell so that it gets to see the same
- ;; environment variables that one gets when logging in on a tty, for
- ;; instance.
- (let* ((pw (getpw (getuid)))
- (shell (passwd:shell pw))
- (st (stat command #f)))
- (when (and st (not (zero? (logand (stat:mode st) #o100))))
- ;; The '--login' option is supported at least by Bash and zsh.
- (execl shell shell "--login" "-c"
- (string-join (cons command args))))))
-
- (let ((home (getenv "HOME"))
- (session (match (command-line)
- ((_ x) x)
- (_ #$fallback-session))))
- ;; First, try to run ~/.xsession.
- (exec-from-login-shell (string-append home "/.xsession"))
- ;; Then try to start the specified session.
- (exec-from-login-shell session))))
- (gexp->script "xinitrc" builder))
-
-\f
-;;;
-;;; SLiM log-in manager.
-;;;
-
-(define %default-xsessions
- ;; Default xsessions available for log-in manager, representing as a list of
- ;; monadic desktop entries.
- (list (text-file* "wmaker.desktop" "
-[Desktop Entry]
-Name=Window Maker
-Exec=" windowmaker "/bin/wmaker
-Type=Application
-")
- (text-file* "ratpoison.desktop" "
-[Desktop Entry]
-Name=Ratpoison
-Exec=" ratpoison "/bin/ratpoison
-Type=Application
-")))
-
-(define (xsessions-directory sessions)
- "Return a directory containing SESSIONS, which should be a list of monadic
-desktop entries."
- (mlet %store-monad ((sessions (sequence %store-monad sessions)))
- (define builder
- #~(begin
- (mkdir #$output)
- (for-each (lambda (session)
- (symlink session (string-append #$output "/"
- (basename session))))
- '#$sessions)))
- (gexp->derivation "xsessions-dir" builder)))
-
-(define %default-slim-theme
- ;; Theme based on work by Felipe López.
- #~(string-append #$%artwork-repository "/slim"))
-
-(define %default-slim-theme-name
- ;; This must be the name of the sub-directory in %DEFAULT-SLIM-THEME that
- ;; contains the actual theme files.
- "0.8")
-
-(define* (slim-service #:key (slim slim)
- (allow-empty-passwords? #t) auto-login?
- (default-user "")
- (theme %default-slim-theme)
- (theme-name %default-slim-theme-name)
- (xauth xauth) (dmd dmd) (bash bash)
- (sessions %default-xsessions)
- (auto-login-session #~(string-append #$windowmaker
- "/bin/wmaker"))
- startx)
- "Return a service that spawns the SLiM graphical login manager, which in
-turn starts the X display server with @var{startx}, a command as returned by
-@code{xorg-start-command}.
-
-When @var{allow-empty-passwords?} is true, allow logins with an empty
-password. When @var{auto-login?} is true, log in automatically as
-@var{default-user} with @var{auto-login-session}.
-
-If @var{theme} is @code{#f}, the use the default log-in theme; otherwise
-@var{theme} must be a gexp denoting the name of a directory containing the
-theme to use. In that case, @var{theme-name} specifies the name of the
-theme."
-
- (define (slim.cfg)
- (mlet %store-monad ((startx (or startx (xorg-start-command)))
- (xinitrc (xinitrc #:fallback-session
- auto-login-session))
- (sessiondir (xsessions-directory sessions)))
- (text-file* "slim.cfg" "
-default_path /run/current-system/profile/bin
-default_xserver " startx "
-xserver_arguments :0 vt7
-xauth_path " xauth "/bin/xauth
-authfile /var/run/slim.auth
-
-# The login command. '%session' is replaced by the chosen session name, one
-# of the names specified in the 'sessions' setting: 'wmaker', 'xfce', etc.
-login_cmd exec " xinitrc " %session
-sessiondir " sessiondir "
-
-halt_cmd " dmd "/sbin/halt
-reboot_cmd " dmd "/sbin/reboot
-"
-(if auto-login?
- (string-append "auto_login yes\ndefault_user " default-user "\n")
- "")
-(if theme-name
- (string-append "current_theme " theme-name "\n")
- ""))))
-
- (mlet %store-monad ((slim.cfg (slim.cfg)))
- (return
- (service
- (documentation "Xorg display server")
- (provision '(xorg-server))
- (requirement '(user-processes host-name udev))
- (start
- #~(lambda ()
- ;; A stale lock file can prevent SLiM from starting, so remove it
- ;; to be on the safe side.
- (false-if-exception (delete-file "/var/run/slim.lock"))
-
- (fork+exec-command
- (list (string-append #$slim "/bin/slim") "-nodaemon")
- #:environment-variables
- (list (string-append "SLIM_CFGFILE=" #$slim.cfg)
- #$@(if theme
- (list #~(string-append "SLIM_THEMESDIR=" #$theme))
- #~())))))
- (stop #~(make-kill-destructor))
- (respawn? #t)
- (pam-services
- ;; Tell PAM about 'slim'.
- (list (unix-pam-service
- "slim"
- #:allow-empty-passwords? allow-empty-passwords?)))))))
-
-;;; xorg.scm ends here
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2017 Andy Wingo <wingo@igalia.com>
+;;; Copyright © 2013, 2014, 2015, 2016, 2017, 2019 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2015 Sou Bunnbu <iyzsong@gmail.com>
+;;; Copyright © 2018 Timothy Sample <samplet@ngyro.com>
+;;;
+;;; 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 xorg)
+ #:use-module (gnu artwork)
+ #:use-module (gnu services)
+ #:use-module (gnu services shepherd)
+ #:use-module (gnu system pam)
+ #:use-module (gnu services dbus)
+ #:use-module ((gnu packages base) #:select (canonical-package))
+ #:use-module (gnu packages guile)
+ #:use-module (gnu packages xorg)
+ #:use-module (gnu packages gl)
+ #:use-module (gnu packages display-managers)
+ #:use-module (gnu packages gnustep)
+ #:use-module (gnu packages gnome)
+ #:use-module (gnu packages admin)
+ #:use-module (gnu packages bash)
+ #:use-module (gnu system shadow)
+ #:use-module (guix gexp)
+ #:use-module (guix store)
+ #:use-module (guix packages)
+ #:use-module (guix derivations)
+ #:use-module (guix records)
+ #:use-module (guix deprecation)
+ #:use-module (srfi srfi-1)
+ #:use-module (srfi srfi-9)
+ #:use-module (srfi srfi-26)
+ #:use-module (ice-9 match)
+ #:export (xorg-configuration-file
+ %default-xorg-modules
+ %default-xorg-fonts
+ xorg-wrapper
+ xorg-start-command
+ xinitrc
+
+ %default-slim-theme
+ %default-slim-theme-name
+
+ slim-configuration
+ slim-configuration?
+ slim-configuration-slim
+ slim-configuration-allow-empty-passwords?
+ slim-configuration-auto-login?
+ slim-configuration-default-user
+ slim-configuration-theme
+ slim-configuration-theme-name
+ slim-configuration-xauth
+ slim-configuration-shepherd
+ slim-configuration-auto-login-session
+ slim-configuration-startx
+
+ slim-service-type
+ slim-service
+
+ screen-locker
+ screen-locker?
+ screen-locker-service-type
+ screen-locker-service
+
+ gdm-configuration
+ gdm-service-type
+ gdm-service))
+
+;;; Commentary:
+;;;
+;;; Services that relate to the X Window System.
+;;;
+;;; Code:
+
+(define %default-xorg-modules
+ ;; Default list of modules loaded by the server. When multiple drivers
+ ;; match, the first one in the list is loaded.
+ (list xf86-video-vesa
+ xf86-video-fbdev
+ xf86-video-amdgpu
+ xf86-video-ati
+ xf86-video-cirrus
+ xf86-video-intel
+ xf86-video-mach64
+ xf86-video-nouveau
+ xf86-video-nv
+ xf86-video-sis
+
+ ;; Libinput is the new thing and is recommended over evdev/synaptics:
+ ;; <http://who-t.blogspot.fr/2015/01/xf86-input-libinput-compatibility-with.html>.
+ xf86-input-libinput
+
+ xf86-input-evdev
+ xf86-input-keyboard
+ xf86-input-mouse
+ xf86-input-synaptics))
+
+(define %default-xorg-fonts
+ ;; Default list of fonts available to the X server.
+ (list (file-append font-alias "/share/fonts/X11/75dpi")
+ (file-append font-alias "/share/fonts/X11/100dpi")
+ (file-append font-alias "/share/fonts/X11/misc")
+ (file-append font-alias "/share/fonts/X11/cyrillic")
+ (file-append font-misc-misc ;default fonts for xterm
+ "/share/fonts/X11/misc")
+ (file-append font-adobe75dpi "/share/fonts/X11/75dpi")))
+
+(define* (xorg-configuration-file #:key
+ (modules %default-xorg-modules)
+ (fonts %default-xorg-fonts)
+ (drivers '()) (resolutions '())
+ (extra-config '()))
+ "Return a configuration file for the Xorg server containing search paths for
+all the common drivers.
+
+@var{modules} must be a list of @dfn{module packages} loaded by the Xorg
+server---e.g., @code{xf86-video-vesa}, @code{xf86-input-keyboard}, and so on.
+@var{fonts} must be a list of font directories to add to the server's
+@dfn{font path}.
+
+@var{drivers} must be either the empty list, in which case Xorg chooses a
+graphics driver automatically, or a list of driver names that will be tried in
+this order---e.g., @code{(\"modesetting\" \"vesa\")}.
+
+Likewise, when @var{resolutions} is the empty list, Xorg chooses an
+appropriate screen resolution; otherwise, it must be a list of
+resolutions---e.g., @code{((1024 768) (640 480))}.
+
+Last, @var{extra-config} is a list of strings or objects appended to the
+configuration file. It is used to pass extra text to be
+added verbatim to the configuration file."
+ (define all-modules
+ ;; 'xorg-server' provides 'fbdevhw.so' etc.
+ (append modules (list xorg-server)))
+
+ (define build
+ #~(begin
+ (use-modules (ice-9 match)
+ (srfi srfi-1)
+ (srfi srfi-26))
+
+ (call-with-output-file #$output
+ (lambda (port)
+ (define drivers
+ '#$drivers)
+
+ (define (device-section driver)
+ (string-append "
+Section \"Device\"
+ Identifier \"device-" driver "\"
+ Driver \"" driver "\"
+EndSection"))
+
+ (define (screen-section driver resolutions)
+ (string-append "
+Section \"Screen\"
+ Identifier \"screen-" driver "\"
+ Device \"device-" driver "\"
+ SubSection \"Display\"
+ Modes "
+ (string-join (map (match-lambda
+ ((x y)
+ (string-append "\"" (number->string x)
+ "x" (number->string y) "\"")))
+ resolutions)) "
+ EndSubSection
+EndSection"))
+
+ (define (expand modules)
+ ;; Append to MODULES the relevant /lib/xorg/modules
+ ;; sub-directories.
+ (append-map (lambda (module)
+ (filter-map (lambda (directory)
+ (let ((full (string-append module
+ directory)))
+ (and (file-exists? full)
+ full)))
+ '("/lib/xorg/modules/drivers"
+ "/lib/xorg/modules/input"
+ "/lib/xorg/modules/multimedia"
+ "/lib/xorg/modules/extensions")))
+ modules))
+
+ (display "Section \"Files\"\n" port)
+ (for-each (lambda (font)
+ (format port " FontPath \"~a\"~%" font))
+ '#$fonts)
+ (for-each (lambda (module)
+ (format port
+ " ModulePath \"~a\"~%"
+ module))
+ (append (expand '#$all-modules)
+
+ ;; For fbdevhw.so and so on.
+ (list #$(file-append xorg-server
+ "/lib/xorg/modules"))))
+ (display "EndSection\n" port)
+ (display "
+Section \"ServerFlags\"
+ Option \"AllowMouseOpenFail\" \"on\"
+EndSection\n" port)
+
+ (display (string-join (map device-section drivers) "\n")
+ port)
+ (newline port)
+ (display (string-join
+ (map (cut screen-section <> '#$resolutions)
+ drivers)
+ "\n")
+ port)
+ (newline port)
+
+ (for-each (lambda (config)
+ (display config port))
+ '#$extra-config)))))
+
+ (computed-file "xserver.conf" build))
+
+
+(define (xorg-configuration-directory modules)
+ "Return a directory that contains the @code{.conf} files for X.org that
+includes the @code{share/X11/xorg.conf.d} directories of each package listed
+in @var{modules}."
+ (with-imported-modules '((guix build utils))
+ (computed-file "xorg.conf.d"
+ #~(begin
+ (use-modules (guix build utils)
+ (srfi srfi-1))
+
+ (define files
+ (append-map (lambda (module)
+ (find-files (string-append
+ module
+ "/share/X11/xorg.conf.d")
+ "\\.conf$"))
+ (list #$@modules)))
+
+ (mkdir #$output)
+ (for-each (lambda (file)
+ (symlink file
+ (string-append #$output "/"
+ (basename file))))
+ files)
+ #t))))
+
+(define* (xorg-wrapper #:key
+ (guile (canonical-package guile-2.0))
+ (modules %default-xorg-modules)
+ (configuration-file (xorg-configuration-file
+ #:modules modules))
+ (xorg-server xorg-server))
+ "Return a derivation that builds a @var{guile} script to start the X server
+from @var{xorg-server}. @var{configuration-file} is the server configuration
+file or a derivation that builds it; when omitted, the result of
+@code{xorg-configuration-file} is used. The resulting script should be used
+in place of @code{/usr/bin/X}."
+ (define exp
+ ;; Write a small wrapper around the X server.
+ #~(begin
+ (setenv "XORG_DRI_DRIVER_PATH" (string-append #$mesa "/lib/dri"))
+ (setenv "XKB_BINDIR" (string-append #$xkbcomp "/bin"))
+
+ (let ((X (string-append #$xorg-server "/bin/X")))
+ (apply execl X X
+ "-xkbdir" (string-append #$xkeyboard-config "/share/X11/xkb")
+ "-config" #$configuration-file
+ "-configdir" #$(xorg-configuration-directory modules)
+ (cdr (command-line))))))
+
+ (program-file "X-wrapper" exp))
+
+(define* (xorg-start-command #:key
+ (guile (canonical-package guile-2.0))
+ (modules %default-xorg-modules)
+ (fonts %default-xorg-fonts)
+ (configuration-file
+ (xorg-configuration-file #:modules modules
+ #:fonts fonts))
+ (xorg-server xorg-server))
+ "Return a @code{startx} script in which @var{modules}, a list of X module
+packages, and @var{fonts}, a list of X font directories, are available. See
+@code{xorg-wrapper} for more details on the arguments. The result should be
+used in place of @code{startx}."
+ (define X
+ (xorg-wrapper #:guile guile
+ #:configuration-file configuration-file
+ #:modules modules
+ #:xorg-server xorg-server))
+ (define exp
+ ;; Write a small wrapper around the X server.
+ #~(apply execl #$X #$X ;; Second #$X is for argv[0].
+ "-logverbose" "-verbose" "-nolisten" "tcp" "-terminate"
+ (cdr (command-line))))
+
+ (program-file "startx" exp))
+
+(define* (xinitrc #:key
+ (guile (canonical-package guile-2.0))
+ fallback-session)
+ "Return a system-wide xinitrc script that starts the specified X session,
+which should be passed to this script as the first argument. If not, the
+@var{fallback-session} will be used or, if @var{fallback-session} is false, a
+desktop session from the system or user profile will be used."
+ (define builder
+ #~(begin
+ (use-modules (ice-9 match)
+ (ice-9 regex)
+ (ice-9 ftw)
+ (ice-9 rdelim)
+ (srfi srfi-1)
+ (srfi srfi-26))
+
+ (define (close-all-fdes)
+ ;; Close all the open file descriptors except 0 to 2.
+ (let loop ((fd 3))
+ (when (< fd 4096) ;FIXME: use sysconf + _SC_OPEN_MAX
+ (false-if-exception (close-fdes fd))
+ (loop (+ 1 fd)))))
+
+ (define (exec-from-login-shell command . args)
+ ;; Run COMMAND from a login shell so that it gets to see the same
+ ;; environment variables that one gets when logging in on a tty, for
+ ;; instance.
+ (let* ((pw (getpw (getuid)))
+ (shell (passwd:shell pw)))
+ ;; Close any open file descriptors. This is all the more
+ ;; important that SLiM itself exec's us directly without closing
+ ;; its own file descriptors!
+ (close-all-fdes)
+
+ ;; The '--login' option is supported at least by Bash and zsh.
+ (execl shell shell "--login" "-c"
+ (string-join (cons command args)))))
+
+ (define system-profile
+ "/run/current-system/profile")
+
+ (define user-profile
+ (and=> (getpw (getuid))
+ (lambda (pw)
+ (string-append (passwd:dir pw) "/.guix-profile"))))
+
+ (define (xsession-command desktop-file)
+ ;; Read from DESKTOP-FILE its X session command and return it as a
+ ;; list.
+ (define exec-regexp
+ (make-regexp "^[[:blank:]]*Exec=(.*)$"))
+
+ (call-with-input-file desktop-file
+ (lambda (port)
+ (let loop ()
+ (match (read-line port)
+ ((? eof-object?) #f)
+ ((= (cut regexp-exec exec-regexp <>) result)
+ (if result
+ (string-tokenize (match:substring result 1))
+ (loop))))))))
+
+ (define (find-session profile)
+ ;; Return an X session command from PROFILE or #f if none was found.
+ (let ((directory (string-append profile "/share/xsessions")))
+ (match (scandir directory
+ (cut string-suffix? ".desktop" <>))
+ ((or () #f)
+ #f)
+ ((sessions ...)
+ (any xsession-command
+ (map (cut string-append directory "/" <>)
+ sessions))))))
+
+ (let* ((home (getenv "HOME"))
+ (xsession-file (string-append home "/.xsession"))
+ (session (match (command-line)
+ ((_)
+ #$(if fallback-session
+ #~(list #$fallback-session)
+ #f))
+ ((_ x ..1)
+ x))))
+ (if (file-exists? xsession-file)
+ ;; Run ~/.xsession when it exists.
+ (apply exec-from-login-shell xsession-file
+ (or session '()))
+ ;; Otherwise, start the specified session or a fallback.
+ (apply exec-from-login-shell
+ (or session
+ (find-session user-profile)
+ (find-session system-profile)))))))
+
+ (program-file "xinitrc" builder))
+
+\f
+;;;
+;;; SLiM log-in manager.
+;;;
+
+(define %default-slim-theme
+ ;; Theme based on work by Felipe López.
+ (file-append %artwork-repository "/slim"))
+
+(define %default-slim-theme-name
+ ;; This must be the name of the sub-directory in %DEFAULT-SLIM-THEME that
+ ;; contains the actual theme files.
+ "0.x")
+
+(define-record-type* <slim-configuration>
+ slim-configuration make-slim-configuration
+ slim-configuration?
+ (slim slim-configuration-slim
+ (default slim))
+ (allow-empty-passwords? slim-configuration-allow-empty-passwords?
+ (default #t))
+ (auto-login? slim-configuration-auto-login?
+ (default #f))
+ (default-user slim-configuration-default-user
+ (default ""))
+ (theme slim-configuration-theme
+ (default %default-slim-theme))
+ (theme-name slim-configuration-theme-name
+ (default %default-slim-theme-name))
+ (xauth slim-configuration-xauth
+ (default xauth))
+ (shepherd slim-configuration-shepherd
+ (default shepherd))
+ (auto-login-session slim-configuration-auto-login-session
+ (default #f))
+ (startx slim-configuration-startx
+ (default (xorg-start-command)))
+ (sessreg slim-configuration-sessreg
+ (default sessreg)))
+
+(define (slim-pam-service config)
+ "Return a PAM service for @command{slim}."
+ (list (unix-pam-service
+ "slim"
+ #:allow-empty-passwords?
+ (slim-configuration-allow-empty-passwords? config))))
+
+(define (slim-shepherd-service config)
+ (define slim.cfg
+ (let ((xinitrc (xinitrc #:fallback-session
+ (slim-configuration-auto-login-session config)))
+ (slim (slim-configuration-slim config))
+ (xauth (slim-configuration-xauth config))
+ (startx (slim-configuration-startx config))
+ (shepherd (slim-configuration-shepherd config))
+ (theme-name (slim-configuration-theme-name config))
+ (sessreg (slim-configuration-sessreg config)))
+ (mixed-text-file "slim.cfg" "
+default_path /run/current-system/profile/bin
+default_xserver " startx "
+xserver_arguments :0 vt7
+xauth_path " xauth "/bin/xauth
+authfile /var/run/slim.auth
+
+# The login command. '%session' is replaced by the chosen session name, one
+# of the names specified in the 'sessions' setting: 'wmaker', 'xfce', etc.
+login_cmd exec " xinitrc " %session
+sessiondir /run/current-system/profile/share/xsessions
+session_msg session (F1 to change):
+sessionstart_cmd " sessreg "/bin/sessreg -a -l $DISPLAY %user
+sessionstop_cmd " sessreg "/bin/sessreg -d -l $DISPLAY %user
+
+halt_cmd " shepherd "/sbin/halt
+reboot_cmd " shepherd "/sbin/reboot\n"
+(if (slim-configuration-auto-login? config)
+ (string-append "auto_login yes\ndefault_user "
+ (slim-configuration-default-user config) "\n")
+ "")
+(if theme-name
+ (string-append "current_theme " theme-name "\n")
+ ""))))
+
+ (define theme
+ (slim-configuration-theme config))
+
+ (list (shepherd-service
+ (documentation "Xorg display server")
+ (provision '(xorg-server))
+ (requirement '(user-processes host-name udev))
+ (start
+ #~(lambda ()
+ ;; A stale lock file can prevent SLiM from starting, so remove it to
+ ;; be on the safe side.
+ (false-if-exception (delete-file "/var/run/slim.lock"))
+
+ (fork+exec-command
+ (list (string-append #$slim "/bin/slim") "-nodaemon")
+ #:environment-variables
+ (list (string-append "SLIM_CFGFILE=" #$slim.cfg)
+ #$@(if theme
+ (list #~(string-append "SLIM_THEMESDIR=" #$theme))
+ #~())))))
+ (stop #~(make-kill-destructor))
+ (respawn? #t))))
+
+(define slim-service-type
+ (service-type (name 'slim)
+ (extensions
+ (list (service-extension shepherd-root-service-type
+ slim-shepherd-service)
+ (service-extension pam-root-service-type
+ slim-pam-service)
+
+ ;; Unconditionally add xterm to the system profile, to
+ ;; avoid bad surprises.
+ (service-extension profile-service-type
+ (const (list xterm)))))
+ (default-value (slim-configuration))))
+
+(define-deprecated (slim-service #:key (slim slim)
+ (allow-empty-passwords? #t) auto-login?
+ (default-user "")
+ (theme %default-slim-theme)
+ (theme-name %default-slim-theme-name)
+ (xauth xauth) (shepherd shepherd)
+ (auto-login-session #f)
+ (startx (xorg-start-command)))
+ slim-service-type
+ "Return a service that spawns the SLiM graphical login manager, which in
+turn starts the X display server with @var{startx}, a command as returned by
+@code{xorg-start-command}.
+
+@cindex X session
+
+SLiM automatically looks for session types described by the @file{.desktop}
+files in @file{/run/current-system/profile/share/xsessions} and allows users
+to choose a session from the log-in screen using @kbd{F1}. Packages such as
+@var{xfce}, @var{sawfish}, and @var{ratpoison} provide @file{.desktop} files;
+adding them to the system-wide set of packages automatically makes them
+available at the log-in screen.
+
+In addition, @file{~/.xsession} files are honored. When available,
+@file{~/.xsession} must be an executable that starts a window manager
+and/or other X clients.
+
+When @var{allow-empty-passwords?} is true, allow logins with an empty
+password. When @var{auto-login?} is true, log in automatically as
+@var{default-user} with @var{auto-login-session}.
+
+If @var{theme} is @code{#f}, the use the default log-in theme; otherwise
+@var{theme} must be a gexp denoting the name of a directory containing the
+theme to use. In that case, @var{theme-name} specifies the name of the
+theme."
+ (service slim-service-type
+ (slim-configuration
+ (slim slim)
+ (allow-empty-passwords? allow-empty-passwords?)
+ (auto-login? auto-login?) (default-user default-user)
+ (theme theme) (theme-name theme-name)
+ (xauth xauth) (shepherd shepherd)
+ (auto-login-session auto-login-session)
+ (startx startx))))
+
+\f
+;;;
+;;; Screen lockers & co.
+;;;
+
+(define-record-type <screen-locker>
+ (screen-locker name program empty?)
+ screen-locker?
+ (name screen-locker-name) ;string
+ (program screen-locker-program) ;gexp
+ (empty? screen-locker-allows-empty-passwords?)) ;Boolean
+
+(define screen-locker-pam-services
+ (match-lambda
+ (($ <screen-locker> name _ empty?)
+ (list (unix-pam-service name
+ #:allow-empty-passwords? empty?)))))
+
+(define screen-locker-setuid-programs
+ (compose list screen-locker-program))
+
+(define screen-locker-service-type
+ (service-type (name 'screen-locker)
+ (extensions
+ (list (service-extension pam-root-service-type
+ screen-locker-pam-services)
+ (service-extension setuid-program-service-type
+ screen-locker-setuid-programs)))))
+
+(define* (screen-locker-service package
+ #:optional
+ (program (package-name package))
+ #:key allow-empty-passwords?)
+ "Add @var{package}, a package for a screen locker or screen saver whose
+command is @var{program}, to the set of setuid programs and add a PAM entry
+for it. For example:
+
+@lisp
+ (screen-locker-service xlockmore \"xlock\")
+@end lisp
+
+makes the good ol' XlockMore usable."
+ (service screen-locker-service-type
+ (screen-locker program
+ (file-append package "/bin/" program)
+ allow-empty-passwords?)))
+
+(define %gdm-accounts
+ (list (user-group (name "gdm") (system? #t))
+ (user-account
+ (name "gdm")
+ (group "gdm")
+ (system? #t)
+ (comment "GNOME Display Manager user")
+ (home-directory "/var/lib/gdm")
+ (shell (file-append shadow "/sbin/nologin")))))
+
+(define-record-type* <gdm-configuration>
+ gdm-configuration make-gdm-configuration
+ gdm-configuration?
+ (gdm gdm-configuration-gdm (default gdm))
+ (allow-empty-passwords? gdm-configuration-allow-empty-passwords? (default #t))
+ (auto-login? gdm-configuration-auto-login? (default #f))
+ (default-user gdm-configuration-default-user (default #f))
+ (x-server gdm-configuration-x-server
+ (default (xorg-wrapper))))
+
+(define (gdm-etc-service config)
+ (define gdm-configuration-file
+ (mixed-text-file "gdm-custom.conf"
+ "[daemon]\n"
+ "#User=gdm\n"
+ "#Group=gdm\n"
+ (if (gdm-configuration-auto-login? config)
+ (string-append
+ "AutomaticLoginEnable=true\n"
+ "AutomaticLogin="
+ (or (gdm-configuration-default-user config)
+ (error "missing default user for auto-login"))
+ "\n")
+ (string-append
+ "AutomaticLoginEnable=false\n"
+ "#AutomaticLogin=\n"))
+ "#TimedLoginEnable=false\n"
+ "#TimedLogin=\n"
+ "#TimedLoginDelay=0\n"
+ "#InitialSetupEnable=true\n"
+ ;; Enable me once X is working.
+ "WaylandEnable=false\n"
+ "\n"
+ "[debug]\n"
+ "#Enable=true\n"
+ "\n"
+ "[security]\n"
+ "#DisallowTCP=true\n"
+ "#AllowRemoteAutoLogin=false\n"))
+ `(("gdm" ,(file-union
+ "gdm"
+ `(("custom.conf" ,gdm-configuration-file))))))
+
+(define (gdm-pam-service config)
+ "Return a PAM service for @command{gdm}."
+ (list
+ (pam-service
+ (inherit (unix-pam-service "gdm-autologin"))
+ (auth (list (pam-entry
+ (control "[success=ok default=1]")
+ (module (file-append (gdm-configuration-gdm config)
+ "/lib/security/pam_gdm.so")))
+ (pam-entry
+ (control "sufficient")
+ (module "pam_permit.so")))))
+ (pam-service
+ (inherit (unix-pam-service "gdm-launch-environment"))
+ (auth (list (pam-entry
+ (control "required")
+ (module "pam_permit.so")))))
+ (unix-pam-service "gdm-password"
+ #:allow-empty-passwords?
+ (gdm-configuration-allow-empty-passwords? config))))
+
+(define (gdm-shepherd-service config)
+ (list (shepherd-service
+ (documentation "Xorg display server (GDM)")
+ (provision '(xorg-server))
+ (requirement '(dbus-system user-processes host-name udev))
+ (start #~(lambda ()
+ (fork+exec-command
+ (list #$(file-append (gdm-configuration-gdm config)
+ "/bin/gdm"))
+ #:environment-variables
+ (list (string-append
+ "GDM_X_SERVER="
+ #$(gdm-configuration-x-server config))
+ ;; XXX: GDM requires access to a handful of
+ ;; programs and components from Gnome (gnome-shell,
+ ;; dbus, and gnome-session among others). The
+ ;; following variables only work provided Gnome is
+ ;; installed.
+ "XDG_DATA_DIRS=/run/current-system/profile/share"
+ "PATH=/run/current-system/profile/bin"))))
+ (stop #~(make-kill-destructor))
+ (respawn? #t))))
+
+(define gdm-service-type
+ (service-type (name 'gdm)
+ (extensions
+ (list (service-extension shepherd-root-service-type
+ gdm-shepherd-service)
+ (service-extension account-service-type
+ (const %gdm-accounts))
+ (service-extension pam-root-service-type
+ gdm-pam-service)
+ (service-extension etc-service-type
+ gdm-etc-service)
+ (service-extension dbus-root-service-type
+ (compose list
+ gdm-configuration-gdm))))
+ (default-value (gdm-configuration))
+ (description
+ "Run the GNOME Desktop Manager (GDM), a program that allows
+you to log in in a graphical session, whether or not you use GNOME.")))
+
+;; This service isn't working yet; it gets as far as starting to run the
+;; greeter from gnome-shell but doesn't get any further. It is here because
+;; it doesn't hurt anyone and perhaps it inspires someone to fix it :)
+(define-deprecated (gdm-service #:key (gdm gdm)
+ (allow-empty-passwords? #t)
+ (x-server (xorg-wrapper)))
+ gdm-service-type
+ "Return a service that spawns the GDM graphical login manager, which in turn
+starts the X display server with @var{X}, a command as returned by
+@code{xorg-wrapper}.
+
+@cindex X session
+
+GDM automatically looks for session types described by the @file{.desktop}
+files in @file{/run/current-system/profile/share/xsessions} and allows users
+to choose a session from the log-in screen using @kbd{F1}. Packages such as
+@var{xfce}, @var{sawfish}, and @var{ratpoison} provide @file{.desktop} files;
+adding them to the system-wide set of packages automatically makes them
+available at the log-in screen.
+
+In addition, @file{~/.xsession} files are honored. When available,
+@file{~/.xsession} must be an executable that starts a window manager
+and/or other X clients.
+
+When @var{allow-empty-passwords?} is true, allow logins with an empty
+password."
+ (service gdm-service-type
+ (gdm-configuration
+ (gdm gdm)
+ (allow-empty-passwords? allow-empty-passwords?)
+ (x-server x-server))))
+
+;;; xorg.scm ends here
HCoop / jackhill / guix / guix.git / blobdiff