services: xorg: Remove WindowMaker as a default fallback.
* gnu/services/xorg.scm (xinitrc)[builder](system-profile) (user-profile): New variables. (xsession-command, find-session): New procedures. When FALLBACK-SESSION is #f, find a valid session at run time. * doc/guix.texi (X Window): Adjust accordingly, and insist that one or more window managers must be installed.
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Ludovic Courtès
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@ -10996,10 +10996,17 @@ Package object of the Open vSwitch.
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@cindex X11
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@cindex X Window System
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@cindex login manager
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Support for the X Window graphical display system---specifically
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Xorg---is provided by the @code{(gnu services xorg)} module. Note that
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there is no @code{xorg-service} procedure. Instead, the X server is
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started by the @dfn{login manager}, currently SLiM.
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started by the @dfn{login manager}, by default SLiM.
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@cindex window manager
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To use X11, you must install at least one @dfn{window manager}---for
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example the @code{windowmaker} or @code{openbox} packages---preferably
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by adding it to the @code{packages} field of your operating system
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definition (@pxref{operating-system Reference, system-wide packages}).
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@defvr {Scheme Variable} slim-service-type
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This is the type for the SLiM graphical login manager for X11.
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@ -11036,8 +11043,19 @@ When @code{auto-login?} is true, SLiM logs in directly as
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@itemx @code{theme-name} (default: @code{%default-slim-theme-name})
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The graphical theme to use and its name.
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@item @code{auto-login-session} (default: @code{windowmaker})
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The default session to use when none is specified.
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@item @code{auto-login-session} (default: @code{#f})
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If true, this must be the name of the executable to start as the default
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session---e.g., @code{(file-append windowmaker "/bin/windowmaker")}.
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If false, a session described by one of the available @file{.desktop}
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files in @code{/run/current-system/profile} and @code{~/.guix-profile}
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will be used.
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@quotation Note
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You must install at least one window manager in the system profile or in
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your user profile. Failing to do that, if @code{auto-login-session} is
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false, you will be unable to log in.
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@end quotation
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@item @code{startx} (default: @code{(xorg-start-command)})
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The command used to start the X11 graphical server.
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@ -309,10 +309,15 @@ used in place of @code{startx}."
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fallback-session)
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"Return a system-wide xinitrc script that starts the specified X session,
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which should be passed to this script as the first argument. If not, the
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@var{fallback-session} will be used."
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@var{fallback-session} will be used or, if @var{fallback-session} is false, a
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desktop session from the system or user profile will be used."
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(define builder
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#~(begin
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(use-modules (ice-9 match))
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(use-modules (ice-9 match)
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(ice-9 regex)
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(ice-9 ftw)
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(srfi srfi-1)
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(srfi srfi-26))
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(define (close-all-fdes)
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;; Close all the open file descriptors except 0 to 2.
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@ -336,16 +341,59 @@ which should be passed to this script as the first argument. If not, the
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(execl shell shell "--login" "-c"
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(string-join (cons command args)))))
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(define system-profile
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"/run/current-system/profile")
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(define user-profile
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(and=> (getpw (getuid))
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(lambda (pw)
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(string-append (passwd:dir pw) "/.guix-profile"))))
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(define (xsession-command desktop-file)
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;; Read from DESKTOP-FILE its X session command and return it as a
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;; list.
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(define exec-regexp
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(make-regexp "^[[:blank:]]*Exec=(.*)$"))
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(call-with-input-file desktop-file
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(lambda (port)
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(let loop ()
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(match (read-line port)
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((? eof-object?) #f)
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((= (cut regexp-exec exec-regexp <>) result)
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(if result
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(string-tokenize (match:substring result 1))
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(loop))))))))
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(define (find-session profile)
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;; Return an X session command from PROFILE or #f if none was found.
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(let ((directory (string-append profile "/share/xsessions")))
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(match (scandir directory
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(cut string-suffix? ".desktop" <>))
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((or () #f)
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#f)
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((sessions ...)
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(any xsession-command
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(map (cut string-append directory "/" <>)
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sessions))))))
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(let* ((home (getenv "HOME"))
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(xsession-file (string-append home "/.xsession"))
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(session (match (command-line)
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((_) (list #$fallback-session))
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((_ x ..1) x))))
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((_)
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#$(if fallback-session
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#~(list #$fallback-session)
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#f))
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((_ x ..1)
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x))))
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(if (file-exists? xsession-file)
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;; Run ~/.xsession when it exists.
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(apply exec-from-login-shell xsession-file session)
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;; Otherwise, start the specified session.
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(apply exec-from-login-shell session)))))
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;; Otherwise, start the specified session or a fallback.
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(apply exec-from-login-shell
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(or session
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(find-session user-profile)
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(find-session system-profile)))))))
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(program-file "xinitrc" builder))
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@ -383,7 +431,7 @@ which should be passed to this script as the first argument. If not, the
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(shepherd slim-configuration-shepherd
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(default shepherd))
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(auto-login-session slim-configuration-auto-login-session
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(default (file-append windowmaker "/bin/wmaker")))
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(default #f))
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(startx slim-configuration-startx
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(default (xorg-start-command))))
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@ -469,8 +517,7 @@ reboot_cmd " shepherd "/sbin/reboot\n"
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(theme %default-slim-theme)
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(theme-name %default-slim-theme-name)
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(xauth xauth) (shepherd shepherd)
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(auto-login-session (file-append windowmaker
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"/bin/wmaker"))
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(auto-login-session #f)
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(startx (xorg-start-command)))
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"Return a service that spawns the SLiM graphical login manager, which in
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turn starts the X display server with @var{startx}, a command as returned by
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