hass.sh

#!/bin/bash

if [ -z "$SUDO_COMMAND" ]
then
  #echo -e "Only root can run this script.\nRelaunching script with sudo.\n"
  sudo $0 $*
  exit 0
fi

HASS_VENV_PATH="/srv/homeassistant"
HASS_PYTHON_PATH="$HASS_VENV_PATH/bin"
HASS_EXEC="$HASS_PYTHON_PATH/hass"
HASS_CONF="/etc/homeassistant"
HASS_SHELL="--shell=/bin/bash"
HASS_START_STOP="/bin/systemctl $1 home-assistant.service"
HASS_CHECK="$HASS_PYTHON_PATH/python $HASS_EXEC --config $HASS_CONF --script check_config"
PID_SEARCH="/usr/bin/pgrep -nf $HASS_EXEC"
HASS_USER=homeassistant
NUM_BACKUPS=`ls -1d $HASS_VENV_PATH-* | grep -v current | sort | wc -l`
BACKUP_TO_HOLD=5
HASS_VERSION=`$HASS_EXEC --version`

set -e

case "$1" in
  start)
    if [ `$PID_SEARCH` ]; then
      echo "Home-Assistant has already started."
    else
      echo "Starting Home-Assistant."
      $HASS_START_STOP
    fi
  ;;

  stop)
    if [ `$PID_SEARCH` ]; then
      echo "Stopping Home-Assistant."
      $HASS_START_STOP
    else
      echo "Home-Assistant is not running."
    fi
  ;;

  force-stop)
    if [ `$PID_SEARCH` ]; then
      echo "Force stopping Home-Assistant."
      /bin/su - $HASS_USER $HASS_SHELL -c "kill -9 `$PID_SEARCH`"
    else
      echo "Home-Assistant is not running."
    fi
  ;;

  upgrade|update)
    $0 stop
    echo "Upgrading Homeassistant"
    if [ ! -d $HASS_VENV_PATH-$HASS_VERSION ]; then
      cp -rp $HASS_VENV_PATH-current $HASS_VENV_PATH-$HASS_VERSION
    fi
    /bin/su - $HASS_USER $HASS_SHELL -c "$HASS_PYTHON_PATH/pip3 install --upgrade homeassistant"
    $0 start
    # cleanup
    if [ "$NUM_BACKUPS" -gt "$BACKUP_TO_HOLD" ];then
      let NUM_BACKUPS_TO_REMOVE=NUM_BACKUPS-BACKUP_TO_HOLD
      BACKUPS_TO_REMOVE=`ls -1d $HASS_VENV_PATH-* | grep -v current | sort | head -n$NUM_BACKUPS_TO_REMOVE`
      for EXPIRED in $BACKUPS_TO_REMOVE; do
        rm -rf $EXPIRED
      done
    fi
  ;;

  check|configcheck|checkconfig|configtest)
    /bin/su - $HASS_USER $HASS_SHELL -c "$HASS_CHECK"
  ;;

  status)
    if [ `$PID_SEARCH` ]; then
      echo "Home-Assistant version $HASS_VERSION is running."
      $HASS_START_STOP
    else
      echo "Home-Assistant is not currently running, you can start it with $0 start"
    fi
  ;;

  restart) $0 stop ; $0 start ;;

  *)
    echo "Usage: $0 {start|stop|restart|status|check|force-stop|upgrade}"
    exit 1
  ;;
esac
exit 0