#!/bin/bash

# The following script automatically installs the XGL window manager with Beryl
# support, and the Emerald theme in Ubuntu Edgy 6.10.
# Gabriel I. Dain, 2007

REP = "deb http://ubuntu.beryl-project.org/ edgy main"
APP_URL = "http://ubuntu.beryl-project.org/root@lupine.me.uk.gp"
ROOT_UID = 0         # Root has $UID 0.

STARTXGL1 = "#!/bin/sh"
STARTXGL2 = "Xgl -fullscreen -ac -br -accel glx:pbuffer -accel xv:pbuffer &"
STARTXGL3 = "sleep 4"
STARTXGL4 = "export DISPLAY=:1"
STARTXGL5 = "exec dbus-launch --exit-with-session gnome-session"

XGL_DESKTOP1 = "[Desktop Entry]"
XGL_DESKTOP2 = "Encoding=UTF-8"
XGL_DESKTOP3 = "Name=Xgl"
XGL_DESKTOP4 = "Exec=/usr/local/bin/startxgl.sh"
XGL_DESKTOP5 = "Icon="
XGL_DESKTOP6 = "Type=Application"

if [ "$UID" -ne "$ROOT_UID" ]
then
  echo; echo "You must be root to run this script."; echo
  exit
fi  

glxinfo | grep -q "direct rendering: Yes";
if [ $? -ne 0 ]
then
	echo "Your graphics card doesn't have support for direct rendering."
	echo; echo "The script will now exit."
	exit
fi

echo "$REP" | cat >> /etc/apt/sources.list

wget -q "$APP_URL" -O- | apt-key add -; apt-get update; apt-get -y dist-upgrade

apt-get -y install xserver-xgl beryl emerald-themes

echo "$STARTXGL1" | cat >> /usr/local/bin/startxgl.sh
echo "$STARTXGL2" | cat >> /usr/local/bin/startxgl.sh
echo "$STARTXGL3" | cat >> /usr/local/bin/startxgl.sh
echo "$STARTXGL4" | cat >> /usr/local/bin/startxgl.sh
echo "$STARTXGL5" | cat >> /usr/local/bin/startxgl.sh

chmod a+x /usr/local/bin/startxgl.sh

echo "$XGLDESKTOP1" | cat >> /usr/share/xsessions/xgl.desktop
echo "$XGLDESKTOP2" | cat >> /usr/share/xsessions/xgl.desktop
echo "$XGLDESKTOP3" | cat >> /usr/share/xsessions/xgl.desktop
echo "$XGLDESKTOP4" | cat >> /usr/share/xsessions/xgl.desktop
echo "$XGLDESKTOP5" | cat >> /usr/share/xsessions/xgl.desktop
echo "$XGLDESKTOP6" | cat >> /usr/share/xsessions/xgl.desktop