Add arcade-bonnet.sh script

arcade-bonnet.sh

@@ -0,0 +1,184 @@
+#!/bin/bash
+
+##### SET UP UDEV
+
+if [ $(id -u) -ne 0 ]; then
+	echo "Installer must be run as root."
+	echo "Try 'sudo bash $0'"
+	exit 1
+fi
+
+clear
+
+echo "This script installs software for the Adafruit"
+echo "Arcade Bonnet for Raspberry Pi. Steps include:"
+echo "- Update package index files (apt-get update)."
+echo "- Install Python libraries: smbus, evdev."
+echo "- Install arcadeBonnet.py in /boot and"
+echo "  configure /etc/rc.local to auto-start script."
+echo "- Enable I2C bus."
+echo "- OPTIONAL: disable overscan."
+echo "Run time ~10 minutes. Reboot required."
+echo "EXISTING INSTALLATION, IF ANY, WILL BE OVERWRITTEN."
+echo
+echo -n "CONTINUE? [y/N] "
+read
+if [[ ! "$REPLY" =~ ^(yes|y|Y)$ ]]; then
+	echo "Canceled."
+	exit 0
+fi
+
+# FEATURE PROMPTS ----------------------------------------------------------
+# Installation doesn't begin until after all user input is taken.
+
+DISABLE_OVERSCAN=0
+INSTALL_HALT=0
+
+# Given a list of strings representing options, display each option
+# preceded by a number (1 to N), display a prompt, check input until
+# a valid number within the selection range is entered.
+selectN() {
+	for ((i=1; i<=$#; i++)); do
+		echo $i. ${!i}
+	done
+	echo
+	REPLY=""
+	while :
+	do
+		echo -n "SELECT 1-$#: "
+		read
+		if [[ $REPLY -ge 1 ]] && [[ $REPLY -le $# ]]; then
+			return $REPLY
+		fi
+	done
+}
+
+echo -n "Disable overscan? [y/N] "
+read
+if [[ "$REPLY" =~ (yes|y|Y)$ ]]; then
+	DISABLE_OVERSCAN=1
+fi
+
+echo -n "Install GPIO-halt utility? [y/N] "
+read
+if [[ "$REPLY" =~ (yes|y|Y)$ ]]; then
+	INSTALL_HALT=1
+	echo -n "GPIO pin for halt: "
+	read
+	HALT_PIN=$REPLY
+fi
+
+echo
+if [ $DISABLE_OVERSCAN -eq 1 ]; then
+	echo "Overscan: disable."
+else
+	echo "Overscan: keep current setting."
+fi
+if [ $INSTALL_HALT -eq 1 ]; then
+        echo "Install GPIO-halt: YES (GPIO$HALT_PIN)"
+else
+        echo "Install GPIO-halt: NO"
+fi
+echo
+echo -n "CONTINUE? [y/N] "
+read
+if [[ ! "$REPLY" =~ ^(yes|y|Y)$ ]]; then
+	echo "Canceled."
+	exit 0
+fi
+
+# START INSTALL ------------------------------------------------------------
+# All selections are validated at this point...
+
+# Given a filename, a regex pattern to match and a replacement string,
+# perform replacement if found, else append replacement to end of file.
+# (# $1 = filename, $2 = pattern to match, $3 = replacement)
+reconfig() {
+	grep $2 $1 >/dev/null
+	if [ $? -eq 0 ]; then
+		# Pattern found; replace in file
+		sed -i "s/$2/$3/g" $1 >/dev/null
+	else
+		# Not found; append (silently)
+		echo $3 | sudo tee -a $1 >/dev/null
+	fi
+}
+
+echo
+echo "Starting installation..."
+echo "Updating package index files..."
+apt-get update
+
+echo "Installing Python libraries..."
+apt-get install -y --force-yes python-pip python-dev python-smbus
+pip install evdev
+
+echo "Installing Adafruit code in /boot..."
+cd /tmp
+curl -LO https://raw.githubusercontent.com/adafruit/Adafruit-Retrogame/master/arcadeBonnet.py
+# Moving between filesystems requires copy-and-delete:
+cp -r arcadeBonnet.py /boot
+rm -f arcadeBonnet.py
+if [ $INSTALL_HALT -ne 0 ]; then
+	echo "Installing gpio-halt in /usr/local/bin..."
+	curl -LO https://github.com/adafruit/Adafruit-GPIO-Halt/archive/master.zip
+	unzip master.zip
+	cd Adafruit-GPIO-Halt-master
+	make
+	mv gpio-halt /usr/local/bin
+	cd ..
+	rm -rf Adafruit-GPIO-Halt-master
+fi
+
+# CONFIG -------------------------------------------------------------------
+
+echo "Configuring system..."
+
+# Enable I2C using raspi-config
+raspi-config nonint do_i2c 0
+
+# Disable overscan compensation (use full screen):
+if [ $DISABLE_OVERSCAN -eq 1 ]; then
+	raspi-config nonint do_overscan 1
+fi
+
+if [ $INSTALL_HALT -ne 0 ]; then
+	# Add gpio-halt to /rc.local:
+	grep gpio-halt /etc/rc.local >/dev/null
+	if [ $? -eq 0 ]; then
+		# gpio-halt already in rc.local, but make sure correct:
+		sed -i "s/^.*gpio-halt.*$/\/usr\/local\/bin\/gpio-halt $HALT_PIN \&/g" /etc/rc.local >/dev/null
+	else
+		# Insert gpio-halt into rc.local before final 'exit 0'
+		sed -i "s/^exit 0/\/usr\/local\/bin\/gpio-halt $HALT_PIN \&\\nexit 0/g" /etc/rc.local >/dev/null
+	fi
+fi
+
+# Auto-start arcadeBonnet.py on boot
+grep arcadeBonnet.py /etc/rc.local >/dev/null
+if [ $? -eq 0 ]; then
+	# arcadeBonnet.py already in rc.local, but make sure correct:
+	sed -i "s/^.*arcadeBonnet.py.*$/cd \/boot;python arcadeBonnet.py \&/g" /etc/rc.local >/dev/null
+else
+	# Insert arcadeBonnet.py into rc.local before final 'exit 0'
+sed -i "s/^exit 0/cd \/boot;python arcadeBonnet.py \&\\nexit 0/g" /etc/rc.local >/dev/null
+fi
+
+# Add udev rule (will overwrite if present)
+echo "SUBSYSTEM==\"input\", ATTRS{name}==\"retrogame\", ENV{ID_INPUT_KEYBOARD}=\"1\"" > /etc/udev/rules.d/10-retrogame.rules
+
+# PROMPT FOR REBOOT --------------------------------------------------------
+
+echo "Done."
+echo
+echo "Settings take effect on next boot."
+echo
+echo -n "REBOOT NOW? [y/N] "
+read
+if [[ ! "$REPLY" =~ ^(yes|y|Y)$ ]]; then
+	echo "Exiting without reboot."
+	exit 0
+fi
+echo "Reboot started..."
+reboot
+exit 0