233 lines
6.3 KiB
Bash
Executable File
233 lines
6.3 KiB
Bash
Executable File
welcome(){
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echo " This script will install if not installed: python-pip and python module paho-mqtt,"
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echo " configure Raspberry Pi MQTT monitor and create a cronjob to run it."
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read -r -p " Do you want to proceed? [y/N] " response
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if [[ "$response" =~ ^([yY][eE][sS]|[yY])$ ]]; then
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printf ""
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else
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exit
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fi
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}
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find_python(){
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if [[ $(python3 --version) ]]; then
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python=$(which python3)
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pip="python3-pip"
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pip_run='pip3'
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else
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python=$(which python)
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pip="python-pip"
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pip_run='pip'
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fi
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if [[ "$python" == *"python"* ]]; then
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print_green "+ Found: $python"
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else
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print_yellow "Python not found!\n Exiting\n"
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exit
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fi
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}
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printm(){
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length=$(expr length "$1")
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length=$(($length + 4))
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printf "\n"
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printf ":: $1 \n\n"
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}
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print_green(){
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tput setaf 2; echo "$1"
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tput sgr 0
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}
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print_yellow(){
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tput setaf 3; printf "$1"
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tput sgr 0
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}
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check_and_install_pip(){
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pip_ver=$(${python} -m pip --version 2>&1);
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if [[ "$pip_ver" == *"No"* ]]; then
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echo "- Pip is not installed, installing it."
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sudo apt install $pip
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else
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print_green "+ Found: $pip"
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fi
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}
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create_venv(){
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printm "Creating virtual environment"
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# Check if python3-venv is installed
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if ! dpkg -l | grep -q python3-venv; then
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echo "python3-venv is not installed. Installing..."
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sudo apt-get install -y python3-venv
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else
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print_green "+ Found: python3-venv"
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fi
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# Create a virtual environment
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${python} -m venv rpi_mon_env
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print_green "+ Virtual environment created"
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# Activate the virtual environment
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source rpi_mon_env/bin/activate
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if [[ $(python3 --version) ]]; then
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python=$(which python3)
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else
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python=$(which python)
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fi
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print_green "+ Activated virtual environment"
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}
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install_requirements(){
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printm "Installing requirements"
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$pip_run install -r requirements.txt
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# Deactivate the virtual environment
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print_green "+ Requirements installed"
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print_green "+ Deactivating virtual environment"
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deactivate
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}
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update_config(){
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if [ -f src/config.py ]; then
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read -p "src/config.py already exists Do you want to remove it? (y/n) " yn
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case $yn in
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[Yy]* ) echo "replacing config file";;
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[Nn]* ) return;;
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* ) echo "Please answer y for yes or n for no.";;
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esac
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fi
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print_green "+ Copy config.py.example to config.py"
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cp src/config.py.example src/config.py
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printm "MQTT settings"
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printf "Enter mqtt_host: "
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read HOST
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sed -i "s/ip address or host/${HOST}/" src/config.py
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printf "Enter mqtt_user: "
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read USER
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sed -i "s/username/${USER}/" src/config.py
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printf "Enter mqtt_password: "
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read PASS
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sed -i "s/\"password/\"${PASS}/" src/config.py
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printf "Enter mqtt_port (default is 1883): "
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read PORT
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if [ -z "$PORT" ]; then
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PORT=1883
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fi
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sed -i "s/1883/${PORT}/" src/config.py
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printf "Enter mqtt_topic_prefix (default is rpi-MQTT-monitor): "
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read TOPIC
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if [ -z "$TOPIC" ]; then
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TOPIC=rpi-MQTT-monitor
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fi
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sed -i "s/rpi-MQTT-monitor/${TOPIC}/" src/config.py
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print_green "+ config.py is updated with provided settings"
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# Get the local version
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local_version=$(git describe --tags)
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# Update the version in config.py
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sed -i "s/version = .*/version = '${local_version}'/" src/config.py
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}
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set_cron(){
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printm "Setting Cronjob"
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cwd=$(pwd)
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crontab -l > tempcron
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if grep -q rpi-cpu2mqtt.py tempcron; then
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cronfound=$(grep rpi-cpu2mqtt.py tempcron)
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print_yellow " There is already a cronjob running rpi-cpu2mqtt.py - skipping cronjob creation.\n"
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print_yellow " If you want the cronjob to be automatically created remove the line below from your\n cronjobs list and run the installer again.\n\n"
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echo " ${cronfound}"
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else
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printf "How often do you want the script to run in minutes? (default is 2): "
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read MIN
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if [ -z "$MIN" ]; then
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MIN=2
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fi
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echo "Adding the line below to your crontab"
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echo "*/${MIN} * * * * cd ${cwd}; ${python} ${cwd}/src/rpi-cpu2mqtt.py"
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echo "*/${MIN} * * * * cd ${cwd}; ${python} ${cwd}/src/rpi-cpu2mqtt.py" >> tempcron
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crontab tempcron
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fi
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rm tempcron
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}
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set_service(){
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printm "Setting systemd service"
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if [ -f /etc/systemd/system/rpi-mqtt-monitor.service ]; then
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read -p "Service file already exists. Do you want to remove it? (y/n) " yn
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case $yn in
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[Yy]* ) sudo rm /etc/systemd/system/rpi-mqtt-monitor.service;;
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[Nn]* ) return;;
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* ) echo "Please answer y for yes or n for no.";;
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esac
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fi
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printf "How often do you want the script to run in seconds? (default is 120): "
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read MIN
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if [ -z "$MIN" ]; then
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MIN=120
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fi
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sed -i "s/120/${MIN}/" src/config.py
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cwd=$(pwd)
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user=$(whoami)
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exec_start="${python} ${cwd}/src/rpi-cpu2mqtt.py --service"
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print_green "+ Copy rpi-mqtt-monitor.service to /etc/systemd/system/"
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sudo cp ${cwd}/rpi-mqtt-monitor.service /etc/systemd/system/
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sudo sed -i "s|WorkingDirectory=.*|WorkingDirectory=${cwd}|" /etc/systemd/system/rpi-mqtt-monitor.service
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sudo sed -i "s|User=YOUR_USER|User=root|" /etc/systemd/system/rpi-mqtt-monitor.service
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sudo sed -i "s|ExecStart=.*|ExecStart=${exec_start}|" /etc/systemd/system/rpi-mqtt-monitor.service
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home_dir=$(eval echo ~$user)
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sudo sed -i "s|Environment=\"HOME=/home/username\"|Environment=\"HOME=${home_dir}\"|" /etc/systemd/system/rpi-mqtt-monitor.service
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sudo systemctl daemon-reload
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sudo systemctl enable rpi-mqtt-monitor.service
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sudo systemctl start rpi-mqtt-monitor.service
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sudo service rpi-mqtt-monitor restart
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sudo service rpi-mqtt-monitor status
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print_green "+ Service is enabled and started"
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git config --global --add safe.directory ${cwd}
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}
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create_shortcut(){
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printm "Creating shortcut rpi-mqtt-monitor"
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cwd=$(pwd)
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echo "${python} ${cwd}/src/rpi-cpu2mqtt.py \$@" > rpi-mqtt-monitor
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sudo mv rpi-mqtt-monitor /usr/local/bin/
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sudo chmod +x /usr/local/bin/rpi-mqtt-monitor
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}
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main(){
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printm "Raspberry Pi MQTT Monitor installer"
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welcome
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find_python
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check_and_install_pip
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create_venv
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install_requirements
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update_config
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create_shortcut
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while true; do
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read -p "Do you want to set up a (c)ron job or a (s)ervice? " cs
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case $cs in
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[Cc]* ) set_cron; break;;
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[Ss]* ) set_service; break;;
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* ) echo "Please answer c for cron or s for service.";;
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esac
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done
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printm "Installation is complete."
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}
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main
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