install.sh

#!/bin/bash
# installs BME280 environmental sensor daemon and start it

# Copyright © 2018 UnravelTEC
# Michael Maier <michael.maier+github@unraveltec.com>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <https://www.gnu.org/licenses/>.
#
# If you want to relicense this code under another license, please contact info+github@unraveltec.com.

targetdir=/usr/local/bin/
if [ ! "$1" ]; then
  last_update=$(stat -c %Y /var/cache/apt/pkgcache.bin)
  now=$(date +%s)
  if [ $((now - last_update)) -gt 86400 ]; then
    echo "long time no aptitude update, doing..."
    aptitude update
  fi
  # python3-paho-mqtt buster only
  aptitude install -y \
    mosquitto python3-paho-mqtt \
    python3-yaml \
    python3-rpi.gpio \
    python3-sdnotify # using systemd watchdog
  mkdir -p $targetdir
fi

if [ -f /boot/config.txt ]; then
  if ! egrep -q '^\s*dtoverlay=w1-gpio,gpiopin=24' /boot/config.txt; then
    sed -e 's|^#\s*dtoverlay=w1-gpio,gpiopin=24|dtoverlay=w1-gpio,gpiopin=24|' -i /boot/config.txt
    echo 'uncommented and enabled 1-w to config.txt'
  fi
  if ! egrep -q '^\s*dtoverlay=w1-gpio,gpiopin=24' /boot/config.txt; then
    echo 'dtoverlay=w1-gpio,gpiopin=24' >> /boot/config.txt
    echo 'added and enabled 1-w to config.txt'
  fi
  if ! egrep -q '^\s*gpio=23=op,dh' /boot/config.txt; then
    sed -e 's|^#\s*gpio=23=op,dh|gpio=23=op,dh|' -i /boot/config.txt
    echo 'uncommented and enabled 1-w powering to config.txt'
  fi
  if ! egrep -q '^\s*gpio=23=op,dh' /boot/config.txt; then
    echo 'gpio=23=op,dh' >> /boot/config.txt
    echo 'added and enabled 1-w powering to config.txt'
  fi
else
  echo "/boot/config.txt not found, you have to make sure uart is enabled yourself"
fi


exe1=ds18b20.py
serv1=ds18b20.service

rsync -raxc --info=name $exe1 $targetdir

rsync -raxc --info=name $serv1 /etc/systemd/system/

rsync --ignore-existing -xc --info=name "ds18b20.yml-pmlogger" /etc/lcars/ds18b20.yml

systemctl daemon-reload
systemctl enable $serv1 && echo "systemctl enable $serv1 OK"
systemctl restart $serv1 && echo "systemctl restart $serv1 OK"