xinitrc.sample

#  -*- shell-script -*-
# edit to suit your system
# save to ~/.xinitrc or ~/.xsession 
# # ~$ man startx   for more information

# allocate your startx or default xinit preference
# Devuan default for jessie or ascii is xfce4 :
# see the case statement below for examples

DEFAULT_SESSION=openbox-session

if test -x dbus-launch ; then
    # there is system dbus infrastructure
    DB_LAUNCH=$(which dbus_launch)
    DB_L_OPTIONS="--auto-syntax --exit-with-session"
    DBL="${DB_LAUNCH} ${DBL_OPTIONS}"
    #  _any_ dbus sessions sockets left unconnected... 
    /usr/bin/dbus-cleanup-sockets || true
else
    DBL=""
fi

if [ -z $1 ]; then
    # no option for xinit or using startx ?
    # then just jump to default
    exec $DBL $DEFAULT_SESSION
fi
### everything above here makes for a nice minimal file

if [ ! -z $1 ];
then
    echo "asking for session $1"
    # $1 hopefully maps to
    # one of these executables like so:
    case $1 in			

	xfce4* )
	    exec $DBL xfce4-session
	    ;;
	fluxbo* | flux )
	    # see also: ~/.fluxbox/startup
	    exec $DBL startfluxbox
	    ;;
	mate* )
	    exec $DBL mate-session
	    ;;
	openbo* | ob )
	    # see also your personal: ~/.config/openbox/autostart 
	    exec $DBL openbox-session
	    ;;
	dwm )
	    # it is OK to not have xbindkeys 
	    xbindkeys || true  &
	    xterm -e /bin/bash &
	    exec $DBL dwm
	twm )
	    xbindkeys || true  &
	    xterm -e /bin/bash &
	    exec $DBL twm 
	    ;;
	icewm )
	    icewmbg &
	    icewmtray &
	    exec $DBL icewm
	    ;;
	wmaker )
	    exec $DBL wmaker
	    ;;
	blackb* )
	    exec $DBL blackbox
	    ;;
	*)
	    if [ -x $1 ]; then
		# user always knows best
		exec $DBL $1
	    else
		exec $DBL $DEFAULT_SESSION
	    fi
	    ;;
    esac
fi

# some wicket-keeps or backstops
if [ ! -x $1 ]; then
    cat <<EOEM
   ALERT: Slim has Failed to launch any X environment.
          Unable to execute: "$1"
   Try xinit  or  startx with _no options_ for $DEFAULT_SESSION
       or if "server in use" 
       Try:  xinit -- :2   
       finally try:  startx sh

   EOEM
    
else
    # we have to hope $1 is some argument an xterm understands
    echo "Trying fallback X access. Hand focus any xterms or windows"
    xterm -e $1 || xterm &
    exec $DBL $DEFAULT_SESSION       
fi

### never give up and *assuming* one is on an actual tty ###
if [ "$?" != "0" ]; then
    echo -e "\ntry:\t xinit -- :$(tty | tr -d /dev/tty) or say :3"
    echo -e "or plain  startx "
fi

# exit without error
# so as not to hang up logins (or "boots") on actual errors

exit 0