setup/clone/utility/sats-boot

#!/bin/sh

# [1] Set random passwords for 'sats'
RANDOM_PASS=$(tr -cd A-Za-z0-9_ < /dev/urandom | head -c 256);
echo "$RANDOM_PASS\n$RANDOM_PASS\n" | sudo passwd sats;

# [2] Set random passwords for 'pi' itself
RANDOM_PASS=$(tr -cd A-Za-z0-9_ < /dev/urandom | head -c 256);
echo "$RANDOM_PASS\n$RANDOM_PASS\n" | sudo passwd pi;

# [3] Start ssh service
sudo systemctl start ssh;

# [4] Try to install necessary packages
sudo apt-get update;
sudo apt-get -y install git php5 php5-cli php5-curl python-dev;




################################################
####          ONLY ON FIRST BOOT            ####
################################################
if [ -e /home/pi/first_boot ]; then

	dpkg -s git 2>/dev/null >/dev/null && gitinstalled=1 || gitinstalled=0;

	BRANCH=$(sudo cat /home/sats/satsd/conf/machine.branch);

	# (1) With git if installed #
        if [ $gitinstalled -eq 1 ]; then

                sudo -u sats git clone -b $BRANCH ssh://smmp-server/satsd/git /home/sats/satsd/source \
			&& rm /home/pi/first_boot \
			|| exit;

        fi;



	# (2) Enable SPI device #
	echo "dtparam=spi=on" | sudo tee -a /boot/config.txt > /dev/null;
	echo "dtoverlay=spi-bcm2708" | sudo tee -a /boot/config.txt > /dev/null;

	# (3) Clone SPI python library #
	sudo git clone https://github.com/lthiery/SPI-Py.git /home/pi/spi-lib;
	sudo python /home/pi/spi-lib/setup.py build;
	sudo python /home/pi/spi-lib/setup.py install;

	# (4) Reboot to activate SPI #
	sudo reboot;

fi;