improved lightdm xsession (for Archlinux)

xsession

#!/bin/sh
#
# LightDM wrapper to run around X sessions.

echo "Running X session wrapper"

# Load profile
for file in "/etc/profile" "$HOME/.profile" "/etc/xprofile" "$HOME/.xprofile"; do
    if [ -f "$file" ]; then
        echo "Loading profile from $file";
        . "$file"
    fi
done

# Load resources
for file in "/etc/X11/Xresources" "$HOME/.Xresources"; do
    if [ -f "$file" ]; then
        echo "Loading resource: $file"
        xrdb -nocpp -merge "$file"
    fi
done

# Load keymaps
for file in "/etc/X11/Xkbmap" "$HOME/.Xkbmap"; do
    if [ -f "$file" ]; then
        echo "Loading keymap: $file"
        setxkbmap `cat "$file"`
        XKB_IN_USE=yes
    fi
done    

# Load xmodmap if not using XKB
if [ -z "$XKB_IN_USE" ]; then
    for file in "/etc/X11/Xmodmap" "$HOME/.Xmodmap"; do
        if [ -f "$file" ]; then
           echo "Loading modmap: $file"
           xmodmap "$file"
        fi
    done
fi

unset XKB_IN_USE

# Run all system xinitrc shell scripts.
xinitdir="/etc/X11/xinit/xinitrc.d"
if [ -d "$xinitdir" ]; then
    for script in $xinitdir/*; do
        echo "Loading xinit script $script"
        if [ -x "$script" -a ! -d "$script" ]; then
            . "$script"
        fi
    done
fi

# Load Xsession scripts
xsessionddir="/etc/X11/Xsession.d"
if [ -d "$xsessionddir" ]; then
    for i in `ls $xsessionddir`; do
        script="$xsessionddir/$i"
        echo "Loading X session script $script"
        if [ -r "$script"  -a -f "$script" ] && expr "$i" : '^[[:alnum:]_-]\+$' > /dev/null; then
            . "$script"
        fi
    done
fi

echo "X session wrapper complete, running session $@"
if [ -x $HOME/.xsession -a -f $HOME/.xsession ]; then
    exec $HOME/.xsession $@
else
    exec $@
fi

xsession.patch

--- /etc/lightdm/xsession~  2012-11-26 19:40:23.000000000 +0100
+++ /etc/lightdm/xsession  2012-09-30 17:44:03.284312754 +0200
@@ -65,5 +65,8 @@
 fi
 
 echo "X session wrapper complete, running session $@"
-
-exec $@
+if [ -x $HOME/.xsession -a -f $HOME/.xsession ]; then
+    exec $HOME/.xsession $@
+else
+    exec $@
+fi

basically, just added the part:

if [ -x $HOME/.xsession -a -f $HOME/.xsession ]; then
    exec $HOME/.xsession $@