#!/bin/sh
# Copyright (c) 1999, 2000 Red Hat, Inc.

# redirect errors to a file in user's home directory if we can
for errfile in "${TMPDIR-/tmp}/.xsession-$USER" \
		"/tmp/.xsession-$USER" \
		"$HOME/.xsession-errors"
do
	if cp /dev/null "$errfile" 2> /dev/null ; then
		chmod 600 "$errfile"
		exec > "$errfile" 2>&1
		break
	fi
done

[ "`echo $PATH | grep -q /usr/X11R6/bin`" = "" ] && PATH="${PATH}:/usr/X11R6/bin"
[ "`echo $PATH | grep -q "$HOME/bin"`" = "" ] && PATH="$PATH:$HOME/bin"

test -f /etc/profile && . /etc/profile
test -f $HOME/.profile && . $HOME/.profile

if [ ! -f $HOME/.profile ] && echo $SHELL |grep -q "bash"; then
    test -f $HOME/.bash_profile && . $HOME/.bash_profile
fi

userresources=$HOME/.Xresources
usermodmap=$HOME/.Xmodmap
userxkbmap=$HOME/.Xkbmap

sysresources=/etc/X11/Xresources
sysmodmap=/etc/X11/Xmodmap
sysxkbmap=/etc/X11/Xkbmap

# merge in defaults
[ -f "$sysresources" ] && xrdb -merge "$sysresources"
[ -f "$userresources" ] && xrdb -merge "$userresources"

# merge in keymaps
if [ -f "$sysxkbmap" ]; then
    setxkbmap `cat "$sysxkbmap"`
    XKB_IN_USE=yes
fi

if [ -f "$userxkbmap" ]; then
    setxkbmap `cat "$userxkbmap"`
    XKB_IN_USE=yes
fi

if [ -z "$XKB_IN_USE" -a ! -L /etc/X11/X ]; then
	if grep '^exec.*/Xsun' /etc/X11/X > /dev/null 2>&1 \
    			&& [ -f /etc/X11/XF86Config ]; then
		xkbsymbols=`sed -n -e 's/^[     ]*XkbSymbols[   ]*"\(.*\)".*$/\1/p' /etc/X11/XF86Config`
		if [ -n "$xkbsymbols" ]; then
			setxkbmap -symbols "$xkbsymbols"
			XKB_IN_USE=yes
		fi
	fi
fi

# xkb and xmodmap don't play nice together
if [ -z "$XKB_IN_USE" ]; then
	[ -f "$sysmodmap" ] && xmodmap "$sysmodmap"
	[ -f "$usermodmap" ] && xmodmap "$usermodmap"
fi

unset XKB_IN_USE

# run all system xinitrc shell scripts.
for i in /etc/X11/xinit/xinitrc.d/* ; do
    if [ -x "$i" ]; then
       . "$i"
    fi
done

# exec specified session or tell user if not found
loadsess()
{
    if [ -f "$HOME/bin/$sess.sh" ]; then
        exec "$HOME/bin/$sess.sh"
    else    
	[ `/usr/bin/which $sess` ] && exec $sess || exec xmessage -center \
	-buttons OK:0 -default OK "Sorry, $sess not found."
    fi	
}

# now, we see if xdm/gdm/kdm has asked for a specific environment
case $1 in
    failsafe)
	exec xterm -geometry 80x24-0-0
	;;
    gnome)
	sess=gnome-session
	loadsess
	;;
    kde)
	sess=startkde
	loadsess
	;;
    windowmaker)
	sess=wmaker
	loadsess
	;;
    xfce)
	sess=startxfce
	loadsess
	;;
    xfce4)
	sess=xfce4-session
	loadsess
	;;
    ""|default)
	# take default action
	if [ -f "$HOME/.Xclients" ]; then
	    exec "$HOME/.Xclients"
	else
	    exec /etc/X11/xinit/Xclients
	fi
	;;
    *)
	sess=$1
	loadsess
esac