X-Git-Url: https://zdv2.bktei.com/gitweb/EVA-2020-02-2.git/blobdiff_plain/1b2cabb898fa4583a3c74770810ec109a1ae17ec..8c9d06156f0e0d66163a16acc2f6c5d42812b5f0:/install.sh

diff --git a/install.sh b/install.sh
index 1205c0c..1fec5c8 100755
--- a/install.sh
+++ b/install.sh
@@ -1,25 +1,193 @@
 #!/bin/bash
 
-LIBRARY_VERSION=`cat library/setup.py | grep version | awk -F"'" '{print $2}'`
-LIBRARY_NAME=`cat library/setup.py | grep name | awk -F"'" '{print $2}'`
+CONFIG=/boot/config.txt
+DATESTAMP=`date "+%Y-%M-%d-%H-%M-%S"`
+CONFIG_BACKUP=false
+APT_HAS_UPDATED=false
+USER_HOME=/home/$SUDO_USER
+RESOURCES_TOP_DIR=$USER_HOME/Pimoroni
+WD=`pwd`
 
-printf "$LIBRARY_NAME $LIBRARY_VERSION Python Library: Installer\n\n"
+user_check() {
+	if [ $(id -u) -ne 0 ]; then
+		printf "Script must be run as root. Try 'sudo ./install.sh'\n"
+		exit 1
+	fi
+}
+
+confirm() {
+	if [ "$FORCE" == '-y' ]; then
+		true
+	else
+		read -r -p "$1 [y/N] " response < /dev/tty
+		if [[ $response =~ ^(yes|y|Y)$ ]]; then
+			true
+		else
+			false
+		fi
+	fi
+}
+
+prompt() {
+	read -r -p "$1 [y/N] " response < /dev/tty
+	if [[ $response =~ ^(yes|y|Y)$ ]]; then
+		true
+	else
+		false
+	fi
+}
+
+success() {
+	echo -e "$(tput setaf 2)$1$(tput sgr0)"
+}
+
+inform() {
+	echo -e "$(tput setaf 6)$1$(tput sgr0)"
+}
+
+warning() {
+	echo -e "$(tput setaf 1)$1$(tput sgr0)"
+}
+
+function do_config_backup {
+	if [ ! $CONFIG_BACKUP == true ]; then
+		CONFIG_BACKUP=true
+		FILENAME="config.preinstall-$LIBRARY_NAME-$DATESTAMP.txt"
+		inform "Backing up $CONFIG to /boot/$FILENAME\n"
+		cp $CONFIG /boot/$FILENAME
+		mkdir -p $RESOURCES_TOP_DIR/config-backups/
+		cp $CONFIG $RESOURCES_TOP_DIR/config-backups/$FILENAME
+		if [ -f "$UNINSTALLER" ]; then
+			echo "cp $RESOURCES_TOP_DIR/config-backups/$FILENAME $CONFIG" >> $UNINSTALLER
+		fi
+	fi
+}
+
+function apt_pkg_install {
+	PACKAGES=()
+	PACKAGES_IN=("$@")
+	for ((i = 0; i < ${#PACKAGES_IN[@]}; i++)); do
+		PACKAGE="${PACKAGES_IN[$i]}"
+		printf "Checking for $PACKAGE\n"
+		dpkg -L $PACKAGE > /dev/null 2>&1
+		if [ "$?" == "1" ]; then
+			PACKAGES+=("$PACKAGE")
+		fi
+	done
+	PACKAGES="${PACKAGES[@]}"
+	if ! [ "$PACKAGES" == "" ]; then
+		echo "Installing missing packages: $PACKAGES"
+		if [ ! $APT_HAS_UPDATED ]; then
+			apt update
+			APT_HAS_UPDATED=true
+		fi
+		apt install -y $PACKAGES
+		if [ -f "$UNINSTALLER" ]; then
+			echo "apt uninstall -y $PACKAGES"
+		fi
+	fi
+}
+
+user_check
+
+apt_pkg_install python-configparser
+
+CONFIG_VARS=`python - <<EOF
+from configparser import ConfigParser
+c = ConfigParser()
+c.read('library/setup.cfg')
+p = dict(c['pimoroni'])
+# Convert multi-line config entries into bash arrays
+for k in p.keys():
+    fmt = '"{}"'
+    if '\n' in p[k]:
+        p[k] = "'\n\t'".join(p[k].split('\n')[1:])
+        fmt = "('{}')"
+    p[k] = fmt.format(p[k])
+print("""
+LIBRARY_NAME="{name}"
+LIBRARY_VERSION="{version}"
+""".format(**c['metadata']))
+print("""
+PY3_DEPS={py3deps}
+PY2_DEPS={py2deps}
+SETUP_CMDS={commands}
+CONFIG_TXT={configtxt}
+""".format(**p))
+EOF`
 
-if [ $(id -u) -ne 0 ]; then
-	printf "Script must be run as root. Try 'sudo ./install.sh'\n"
+if [ $? -ne 0 ]; then
+	warning "Error parsing configuration...\n"
 	exit 1
 fi
 
+eval $CONFIG_VARS
+
+RESOURCES_DIR=$RESOURCES_TOP_DIR/$LIBRARY_NAME
+UNINSTALLER=$RESOURCES_DIR/uninstall.sh
+
+mkdir -p $RESOURCES_DIR
+
+cat << EOF > $UNINSTALLER
+printf "It's recommended you run these steps manually.\n"
+printf "If you want to run the full script, open it in\n"
+printf "an editor and remove 'exit 1' from below.\n"
+exit 1
+EOF
+
+printf "$LIBRARY_NAME $LIBRARY_VERSION Python Library: Installer\n\n"
+
 cd library
 
 printf "Installing for Python 2..\n"
-python setup.py install
+apt_pkg_install "${PY2_DEPS[@]}"
+python setup.py install > /dev/null
+if [ $? -eq 0 ]; then
+	success "Done!\n"
+	echo "pip uninstall $LIBRARY_NAME" >> $UNINSTALLER
+fi
 
 if [ -f "/usr/bin/python3" ]; then
 	printf "Installing for Python 3..\n"
-	python3 setup.py install
+	apt_pkg_install "${PY3_DEPS[@]}"
+	python3 setup.py install > /dev/null
+	if [ $? -eq 0 ]; then
+		success "Done!\n"
+		echo "pip3 uninstall $LIBRARY_NAME" >> $UNINSTALLER
+	fi
 fi
 
-cd ..
+cd $WD
+
+for ((i = 0; i < ${#SETUP_CMDS[@]}; i++)); do
+	CMD="${SETUP_CMDS[$i]}"
+	# Attempt to catch anything that touches /boot/config.txt and trigger a backup
+	if [[ "$CMD" == *"raspi-config"* ]] || [[ "$CMD" == *"$CONFIG"* ]] || [[ "$CMD" == *"\$CONFIG"* ]]; then
+		do_config_backup
+	fi
+	eval $CMD
+done
+
+for ((i = 0; i < ${#CONFIG_TXT[@]}; i++)); do
+	CONFIG_LINE="${CONFIG_TXT[$i]}"
+	if ! [ "$CONFIG_LINE" == "" ]; then
+		do_config_backup
+		inform "Adding $CONFIG_LINE to $CONFIG\n"
+		sed -i "s/^#$CONFIG_LINE/$CONFIG_LINE/" $CONFIG
+		if ! grep -q "^$CONFIG_LINE" $CONFIG; then
+			printf "$CONFIG_LINE\n" >> $CONFIG
+		fi
+	fi
+done
+
+if [ -d "examples" ]; then
+	if confirm "Would you like to copy examples to $RESOURCES_DIR?"; then
+		inform "Copying examples to $RESOURCES_DIR"
+		cp -r examples/ $RESOURCES_DIR
+		echo "rm -r $RESOURCES_DIR" >> $UNINSTALLER
+	fi
+fi
 
-printf "Done!\n"
+success "\nAll done!"
+inform "If this is your first time installing you should reboot for hardware changes to tkae effect.\n"
+inform "Find uninstall steps in $UNINSTALLER\n"