gw-setup-raspi.sh

#!/bin/bash

BLACKLIST=/etc/modprobe.d/raspi-blacklist.conf
CONFIG=/boot/config.txt
TIMEZONE="Europe/Berlin"
COUNTRY="DE"
LOCALE="de_DE.UTF-8"

is_pi () {
  ARCH=$(dpkg --print-architecture)
  if [ "$ARCH" = "armhf" ] ; then
	return 0
  else
	return 1
  fi
}

disable_raspi_config_at_boot() {
  if [ -e /etc/profile.d/raspi-config.sh ]; then
	rm -f /etc/profile.d/raspi-config.sh
	if [ -e /etc/systemd/system/getty@tty1.service.d/raspi-config-override.conf ]; then
	  rm /etc/systemd/system/getty@tty1.service.d/raspi-config-override.conf
	fi
	telinit q
  fi
}

do_change_locale() {
	if ! LOCALE_LINE="$(grep "^$LOCALE " /usr/share/i18n/SUPPORTED)"; then
	  return 1
	fi
	local ENCODING="$(echo $LOCALE_LINE | cut -f2 -d " ")"
	echo "$LOCALE $ENCODING" > /etc/locale.gen
	sed -i "s/^\s*LANG=\S*/LANG=$LOCALE/" /etc/default/locale
	dpkg-reconfigure -f noninteractive locales
}

set_config_var() {
  lua - "$1" "$2" "$3" <<EOF > "$3.bak"
local key=assert(arg[1])
local value=assert(arg[2])
local fn=assert(arg[3])
local file=assert(io.open(fn))
local made_change=false
for line in file:lines() do
  if line:match("^#?%s*"..key.."=.*$") then
	line=key.."="..value
	made_change=true
  end
  print(line)
end

if not made_change then
  print(key.."="..value)
end
EOF
mv "$3.bak" "$3"
}

clear_config_var() {
  lua - "$1" "$2" <<EOF > "$2.bak"
local key=assert(arg[1])
local fn=assert(arg[2])
local file=assert(io.open(fn))
for line in file:lines() do
  if line:match("^%s*"..key.."=.*$") then
	line="#"..line
  end
  print(line)
end
EOF
mv "$2.bak" "$2"
}

get_config_var() {
  lua - "$1" "$2" <<EOF
local key=assert(arg[1])
local fn=assert(arg[2])
local file=assert(io.open(fn))
local found=false
for line in file:lines() do
  local val = line:match("^%s*"..key.."=(.*)$")
  if (val ~= nil) then
	print(val)
	found=true
	break
  end
end
if not found then
   print(0)
end
EOF
}

echo -e "\n**********************************"
echo -e "* GW Setup Script for Raspi v0.2 *"
echo -e "**********************************\n"

if [ $(id -u) -ne 0 ]; then
	echo -e "Script must be run as root. Try 'sudo $0'\n"
	exit 1
fi

whiptail --msgbox "\
Please note: RFCs mandate that a hostname's labels \
may contain only the ASCII letters 'a' through 'z' (case-insensitive), 
the digits '0' through '9', and the hyphen.
Hostname labels cannot begin or end with a hyphen. 
No other symbols, punctuation characters, or blank spaces are permitted.\
" 20 70 1

CURRENT_HOSTNAME=`cat /etc/hostname | tr -d " \t\n\r"`
NEW_HOSTNAME=$(whiptail --inputbox "Please enter a hostname" 20 60 "$CURRENT_HOSTNAME" 3>&1 1>&2 2>&3)
if [ $? -eq 0 ]; then
	echo $NEW_HOSTNAME > /etc/hostname
	sed -i "s/127.0.1.1.*$CURRENT_HOSTNAME/127.0.1.1\t$NEW_HOSTNAME/g" /etc/hosts
fi
  
apt-get update &&
apt-get -y dist-upgrade &&
apt-get -y install git samba-common samba tdb-tools

echo -e "\nÄndere Zeitzone nach $TIMEZONE"
rm /etc/localtime
echo "$TIMEZONE" > /etc/timezone
dpkg-reconfigure -f noninteractive tzdata

echo -e "\nErzeuge Locale $LOCALE"
# do_change_locale
dpkg-reconfigure locales


echo -e "\nÄndere Land nach $COUNTRY"
if [ -e /etc/wpa_supplicant/wpa_supplicant.conf ]; then
	if grep -q "^country=" /etc/wpa_supplicant/wpa_supplicant.conf ; then
		sed -i --follow-symlinks "s/^country=.*/country=$COUNTRY/g" /etc/wpa_supplicant/wpa_supplicant.conf
	else
		sed -i --follow-symlinks "1i country=$COUNTRY" /etc/wpa_supplicant/wpa_supplicant.conf
	fi
else
	echo "country=$COUNTRY" > /etc/wpa_supplicant/wpa_supplicant.conf
fi

if is_pi ; then
	
	SETTING=on
	
	echo -e "\nAktiviere SPI"
	set_config_var dtparam=spi $SETTING $CONFIG &&
	if ! [ -e $BLACKLIST ]; then
		touch $BLACKLIST
	fi
	sed $BLACKLIST -i -e "s/^\(blacklist[[:space:]]*spi[-_]bcm2708\)/#\1/"
	dtparam spi=$SETTING
	
	echo -e "\nAktiviere I2C"
	set_config_var dtparam=i2c_arm $SETTING $CONFIG &&
	if ! [ -e $BLACKLIST ]; then
		touch $BLACKLIST
	fi
	sed $BLACKLIST -i -e "s/^\(blacklist[[:space:]]*i2c[-_]bcm2708\)/#\1/"
	sed /etc/modules -i -e "s/^#[[:space:]]*\(i2c[-_]dev\)/\1/"
	if ! grep -q "^i2c[-_]dev" /etc/modules; then
		printf "i2c-dev\n" >> /etc/modules
	fi
	dtparam i2c_arm=$SETTING
	modprobe i2c-dev
	
	echo -e "\nAktiviere OneWire"
	sed $CONFIG -i -e "s/^#dtoverlay=w1-gpio/dtoverlay=w1-gpio/"
	if ! grep -q -E "^dtoverlay=w1-gpio" $CONFIG; then
		printf "dtoverlay=w1-gpio\n" >> $CONFIG
	fi
	
	cd /home/pi
	git clone git://git.drogon.net/wiringPi
	cd wiringPi
	./build
	
fi
 
disable_raspi_config_at_boot
whiptail --yesno "Would you like to reboot now?" 20 60 2
if [ $? -eq 0 ]; then # yes
	sync
	reboot
fi
exit 0