Linux G50vt Oled install.sh

#!/bin/bash

cd `dirname $0`

which java &>/dev/null

if [ $? != 0 ]; then
    echo "You don't seem to have java installed, or it cannot be found in the PATH"
    echo "Please correct this and try again"
    exit 1
fi

if [ `id -u` != 0 ]; then
    echo "You should run this script as root, so it is able to make the required changes to /etc/acpi"
    exit 1
fi

lsmod | grep -q asus_oled

if [ $? != 0 ]; then
    echo ""
    echo "  ERROR: You have not loaded asus_oled kernel module!"
    echo ""
    echo "  The daemon will not work without the module, so please go to"
    echo "    http://lapsus.berlios.de/asus_oled.html"
    echo "  and grab the latest (SVN!) version of the module. Then run this script again."
    echo ""
    exit 1
fi


# install ACPI event handlers for ASUS G50
export WHERE=`cd ..; pwd`

# Copy one of the scripts, replacing "/opt/leds" with the real location where the program resides
# @param 1 script to install
# @param 2 destination file name
# @return nothing
function cpScript(){
    SCRIPT="$1"
    TARGET="$2"

    sed "s#/opt/leds#$WHERE#g" < "$SCRIPT" > "$TARGET"

    chmod +x "$TARGET"
}

ACPID=""

if [ -f /etc/init.d/acpid ]; then
    ACPID=/etc/init.d/acpid
elif [ -f /etc/rc.d/init.d/acpid ]; then
    ACPID=/etc/rc.d/init.d/acpid
fi

if [ -z "$ACPID" ]; then
    echo "acpid cannot be located in either /etc/init.d or /etc/rc.d/init.d"
    echo "I will not install the ACPI event handlers"
else
    echo "Found acpid as $ACPID, installing event handlers in /etc/acpi"

    mkdir -p /etc/acpi/events &>/dev/null

    cp acpi/events/* /etc/acpi/events/

    cpScript acpi/asus-g50-games.sh /etc/acpi/asus-g50-games.sh

    for script in asus-g50-lid.sh asus-g50-run.sh; do
	cp acpi/$script /etc/acpi
	chmod +x /etc/acpi/$script
    done

    $ACPID reload
fi

# install startup script
if [ -d /etc/init ]; then
    echo "Installing Upstart configuration in /etc/init"
    cpScript asusg50leds.conf /etc/init/asusg50leds.conf
    chmod a-x /etc/init/asusg50leds.conf
fi

if [ -d /etc/event.d ]; then
    echo "Installing Upstart configuration in /etc/event.d"
    cpScript asusg50leds.conf /etc/event.d/asusg50leds.conf
    chmod a-x /etc/event.d/asusg50leds.conf
fi


which update-rc.d &>/dev/null

if [ $? = 0 ]; then
    echo "Installing Ubuntu/Debian startup script"
    cpScript asusg50leds.sh /etc/init.d/asusg50leds.sh
    update-rc.d asusg50leds.sh defaults 80 20
    exit 0
fi

which chkconfig &>/dev/null

if [ $? = 0 ]; then
    echo -n "Installing RedHat/SuSE startup script "

    if [ -d /etc/rc.d/init.d ]; then
    	echo "in /etc/rc.d/init.d"
    	cpScript asusg50leds.sh /etc/rc.d/init.d/asusg50leds.sh
    elif [ -d /etc/init.d ]; then
    	echo "in /etc/init.d"
    	cpScript asusg50leds.sh /etc/init.d/asusg50leds.sh
    else
    	echo "Sorry, neither /etc/rc.d/init.d or /etc/init.d are present. I don't know what to do."
    	exit 1
    fi

    chkconfig --add asusg50leds.sh
    exit 0
fi

which rc-update &>/dev/null

if [ $? = 0 ]; then
    echo "Installing Gentoo startup script"
    cpScript gentoo/asusg50leds /etc/init.d/asusg50leds
    rc-update add asusg50leds default
    exit 0
fi

echo "I don't know how to install the startup script on your system!"
echo "It should be very simple to adapt asusg50leds.sh on your system too."

exit 1