;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2013, 2014, 2015 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2013, 2014, 2015, 2016 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2015 Sou Bunnbu <iyzsong@gmail.com>
;;;
;;; This file is part of GNU Guix.
;;;
(define-module (gnu services xorg)
#:use-module (gnu artwork)
#:use-module (gnu services)
- #:use-module (gnu system linux) ; 'pam-service'
+ #:use-module (gnu services shepherd)
+ #:use-module (gnu system pam)
#: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 display-managers)
#:use-module (gnu packages gnustep)
- #:use-module (gnu packages sawfish)
#: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 packages)
#:use-module (guix derivations)
#:use-module (guix records)
#:use-module (srfi srfi-1)
+ #:use-module (srfi srfi-9)
#:use-module (srfi srfi-26)
#:use-module (ice-9 match)
- #:export (xorg-start-command
- %default-xsessions
- %ratpoison-session-type
- %windowmaker-session-type
- %sawfish-session-type
-
- session-type?
- session-type-name
+ #:export (xorg-configuration-file
+ %default-xorg-modules
+ xorg-start-command
+ xinitrc
%default-slim-theme
%default-slim-theme-name
- slim-service))
+ slim-configuration
+ slim-service-type
+ slim-service
+
+ screen-locker
+ screen-locker?
+ screen-locker-service-type
+ screen-locker-service))
;;; Commentary:
;;;
;;;
;;; 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.
+(define* (xorg-configuration-file #:key (drivers '()) (resolutions '())
+ (extra-config '()))
+ "Return a configuration file for the Xorg server containing search paths for
+all the common drivers.
@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
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))}."
+resolutions---e.g., @code{((1024 768) (640 480))}.
+Last, @var{extra-config} is a list of strings or objects appended to the
+@code{mixed-text-file} argument list. It is used to pass extra text to be
+added verbatim to the configuration file."
(define (device-section driver)
(string-append "
Section \"Device\"
SubSection \"Display\"
Modes "
(string-join (map (match-lambda
- ((x y)
- (string-append "\"" (number->string x)
- "x" (number->string y) "\"")))
+ ((x y)
+ (string-append "\"" (number->string x)
+ "x" (number->string y) "\"")))
resolutions)) "
EndSubSection
EndSection"))
- (define (xserver.conf)
- (text-file* "xserver.conf" "
+ (apply mixed-text-file "xserver.conf" "
Section \"Files\"
+ FontPath \"" font-alias "/share/fonts/X11/75dpi\"
+ FontPath \"" font-alias "/share/fonts/X11/100dpi\"
+ FontPath \"" font-alias "/share/fonts/X11/misc\"
+ FontPath \"" font-alias "/share/fonts/X11/cyrillic\"
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-nouveau "/lib/xorg/modules/drivers\"
ModulePath \"" xf86-video-nv "/lib/xorg/modules/drivers\"
ModulePath \"" xf86-video-sis "/lib/xorg/modules/drivers\"
+
+ # Libinput is the new thing and is recommended over evdev/synaptics
+ # by those who know:
+ # <http://who-t.blogspot.fr/2015/01/xf86-input-libinput-compatibility-with.html>.
+ ModulePath \"" xf86-input-libinput "/lib/xorg/modules/input\"
+
ModulePath \"" xf86-input-evdev "/lib/xorg/modules/input\"
ModulePath \"" xf86-input-keyboard "/lib/xorg/modules/input\"
ModulePath \"" xf86-input-mouse "/lib/xorg/modules/input\"
Option \"AllowMouseOpenFail\" \"on\"
EndSection
"
- (string-join (map device-section drivers) "\n")
+ (string-join (map device-section drivers) "\n") "\n"
(string-join (map (cut screen-section <> resolutions)
drivers)
- "\n")))
+ "\n")
+
+ "\n"
+ extra-config))
+
+(define %default-xorg-modules
+ (list xf86-video-vesa
+ xf86-video-fbdev
+ xf86-video-modesetting
+ xf86-video-cirrus
+ xf86-video-intel
+ xf86-video-mach64
+ xf86-video-nouveau
+ xf86-video-nv
+ xf86-video-sis
+ xf86-input-libinput
+ xf86-input-evdev
+ xf86-input-keyboard
+ xf86-input-mouse
+ xf86-input-synaptics))
+
+(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))))
- (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"))
+(define* (xorg-start-command #:key
+ (guile (canonical-package guile-2.0))
+ (configuration-file (xorg-configuration-file))
+ (modules %default-xorg-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.
- (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"
+Usually the X server is started by a login manager."
+ (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"))
- ;; Note: SLiM and other display managers add the
- ;; '-auth' flag by themselves.
- (cdr (command-line)))))
+ (apply execl (string-append #$xorg-server "/bin/X")
+ (string-append #$xorg-server "/bin/X") ;argv[0]
+ "-logverbose" "-verbose"
+ "-xkbdir" (string-append #$xkeyboard-config "/share/X11/xkb")
+ "-config" #$configuration-file
+ "-configdir" #$(xorg-configuration-directory modules)
+ "-nolisten" "tcp" "-terminate"
- (gexp->script "start-xorg" script)))
+ ;; Note: SLiM and other display managers add the
+ ;; '-auth' flag by themselves.
+ (cdr (command-line)))))
+
+ (program-file "start-xorg" exp))
(define* (xinitrc #:key
(guile (canonical-package guile-2.0))
#~(begin
(use-modules (ice-9 match))
+ (define (close-all-fdes)
+ ;; Close all the open file descriptors except 0 to 2.
+ (let loop ((fd 3))
+ (when (< fd 4096) ;FIXME: use sysconf + _SC_OPEN_MAX
+ (false-if-exception (close-fdes fd))
+ (loop (+ 1 fd)))))
+
(define (exec-from-login-shell command . args)
;; Run COMMAND from a login shell so that it gets to see the same
;; environment variables that one gets when logging in on a tty, for
;; instance.
(let* ((pw (getpw (getuid)))
- (shell (passwd:shell pw))
- (st (stat command #f)))
- (when (and st (not (zero? (logand (stat:mode st) #o100))))
- ;; The '--login' option is supported at least by Bash and zsh.
- (execl shell shell "--login" "-c"
- (string-join (cons command args))))))
-
- (let ((home (getenv "HOME"))
- (session (match (command-line)
- ((_ x) x)
- (_ #$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))
+ (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)))))
+
+ (let* ((home (getenv "HOME"))
+ (xsession-file (string-append home "/.xsession"))
+ (session (match (command-line)
+ ((_) (list #$fallback-session))
+ ((_ x ..1) x))))
+ (if (file-exists? xsession-file)
+ ;; Run ~/.xsession when it exists.
+ (apply exec-from-login-shell xsession-file session)
+ ;; Otherwise, start the specified session.
+ (apply exec-from-login-shell session)))))
+
+ (program-file "xinitrc" builder))
\f
;;;
;;; SLiM log-in manager.
;;;
-(define-record-type* <session-type> session-type make-session-type
- session-type?
- (name session-type-name) ;string
- (executable session-type-executable)) ;string-valued gexp
-
-(define %windowmaker-session-type
- (session-type
- (name "WindowMaker")
- (executable #~(string-append #$windowmaker "/bin/wmaker"))))
-
-(define %ratpoison-session-type
- (session-type
- (name "Ratpoison")
- (executable #~(string-append #$ratpoison "/bin/ratpoison"))))
-
-(define %sawfish-session-type
- (session-type
- (name "Sawfish")
- (executable #~(string-append #$sawfish "/bin/sawfish"))))
-
-(define %default-xsessions
- ;; Default session types available to the log-in manager.
- (list %windowmaker-session-type %ratpoison-session-type))
-
-(define (xsessions-directory sessions)
- "Return a directory containing SESSIONS, a list of <session-type> objects.
-The alphabetical order of the files in that directory match the order of the
-elements in SESSIONS."
- (define builder
- #~(begin
- (use-modules (srfi srfi-1)
- (ice-9 format))
-
- (mkdir #$output)
- (chdir #$output)
- (fold (lambda (name executable number)
- ;; Create file names such that the order of the items in
- ;; SESSION is respected. SLiM gets them in lexicographic
- ;; order and uses the first one as the default session.
- (let ((file (format #f "~2,'0d-~a.desktop"
- number (string-downcase name))))
- (call-with-output-file file
- (lambda (port)
- (format port "[Desktop Entry]
-Name=~a
-Exec=~a
-Type=Application~%"
- name executable)))
- (+ 1 number)))
- 1
- '#$(map session-type-name sessions)
- (list #$@(map session-type-executable sessions)))))
-
- (gexp->derivation "xsessions-dir" builder))
-
(define %default-slim-theme
;; Theme based on work by Felipe López.
- #~(string-append #$%artwork-repository "/slim"))
+ (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.
- "0.8")
+ "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?)
+ (auto-login? slim-configuration-auto-login?)
+ (default-user slim-configuration-default-user)
+ (theme slim-configuration-theme)
+ (theme-name slim-configuration-theme-name)
+ (xauth slim-configuration-xauth
+ (default xauth))
+ (shepherd slim-configuration-shepherd
+ (default shepherd))
+ (bash slim-configuration-bash
+ (default bash))
+ (auto-login-session slim-configuration-auto-login-session)
+ (startx slim-configuration-startx))
+
+(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)))
+ (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):
+
+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=" #$theme))
+ #~())))))
+ (stop #~(make-kill-destructor))
+ (respawn? #t))))
+
+(define slim-service-type
+ (service-type (name 'slim)
+ (extensions
+ (list (service-extension shepherd-root-service-type
+ slim-shepherd-service)
+ (service-extension pam-root-service-type
+ slim-pam-service)
+
+ ;; Unconditionally add xterm to the system profile, to
+ ;; avoid bad surprises.
+ (service-extension profile-service-type
+ (const (list xterm)))))))
(define* (slim-service #:key (slim slim)
(allow-empty-passwords? #t) auto-login?
(default-user "")
(theme %default-slim-theme)
(theme-name %default-slim-theme-name)
- (xauth xauth) (dmd dmd) (bash bash)
- (sessions %default-xsessions)
- (auto-login-session #~(string-append #$windowmaker
- "/bin/wmaker"))
- startx)
+ (xauth xauth) (shepherd shepherd) (bash bash)
+ (auto-login-session (file-append windowmaker
+ "/bin/wmaker"))
+ (startx (xorg-start-command)))
"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.
-
-Last, @var{session} is a list of @code{<session-type>} objects denoting the
-available session types that can be chosen from the log-in screen. The first
-one is chosen by default."
-
- (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
+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) (bash bash)
+ (auto-login-session auto-login-session)
+ (startx startx))))
-# 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 "
-session_msg session (F1 to change):
-
-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")
- ""))))
+\f
+;;;
+;;; Screen lockers & co.
+;;;
- (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?)))))))
+(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?)))
;;; xorg.scm ends here