airplay.sh

cat << "EOF"
 ______             ____    ___                      __     
/\  _  \  __       /\  _`\ /\_ \                    /\ \    
\ \ \L\ \/\_\  _ __\ \ \L\ \//\ \      __     __  __\ \ \   
 \ \  __ \/\ \/\`'__\ \ ,__/ \ \ \   /'__`\  /\ \/\ \\ \ \  
  \ \ \/\ \ \ \ \ \/ \ \ \/   \_\ \_/\ \L\.\_\ \ \_\ \\ \_\ 
   \ \_\ \_\ \_\ \_\  \ \_\   /\____\ \__/.\_\\/`____ \\/\_\
    \/_/\/_/\/_/\/_/   \/_/   \/____/\/__/\/_/ `/___/> \\/_/
                                                  /\___/    
                                                  \/__/     
EOF

echo "Updating OS"
apt-get -y update && apt-get -y upgrade

echo "Removing unnecessary X11 packages"
apt-get -y remove x11-common x11-utils x11-xkb-utils libx11-6 lxde-common 
apt-get -y autoremove
dpkg --list | grep "^rc" | cut -d " " -f 3 | xargs dpkg --purge
apt-get -y autoclean

echo "Activate the headphone jack and increase the volume to 11"
amixer cset numid=3 1
amixer set PCM -- 0

echo "Installing Dependencies"
apt-get -y install git build-essential avahi-utils libssl-dev libao-dev libpulse-dev libasound2-dev

echo "Install Shairport"
cd /tmp
git clone https://github.com/abrasive/shairport.git
cd shairport
./configure
make && make install

echo "Add startup script"
cd scripts/debian/
cp -r * /etc/

echo "Add shairport user"
adduser --system --disabled-login --ingroup audio shairport

echo "Configuring shairport"
sed -i -- 's/#USER=shairport/USER=shairport/g' /etc/default/shairport
sed -i -- 's/#GROUP=audio/GROUP=audio/g' /etc/default/shairport
sed -i -- 's/#AP_NAME=/AP_NAME=AirPi/g' /etc/default/shairport

echo "Add shairport to init scripts"
update-rc.d shairport defaults

echo "Starting shairport service"
service shairport start

echo "Configure your Airplay receiver at /etc/default/shairport"