pytomation.init

#!/bin/sh
### BEGIN INIT INFO
# Provides: pytomation
# Required-Start: $remote_fs $network $syslog
# Required-Stop: $remote_fs $network $syslog
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Pytomation Home Automation Server
### END INIT INFO

# Service Description
NAME="pytomation"
DESC="Pytomation Home Automation Server"
SCRIPT_NAME="/etc/init.d/$NAME"

# Python interpreter and Pytomation script location
INTERPRETER="/usr/bin/python3"
PYTOMATION_DIR="/home/pytomation"
PYTOMATION_SCRIPT="$PYTOMATION_DIR/pytomation.py"

# User for Pytomation daemon
PYTOMATION_USER="pyto"

# PID file name and location
PID_FILE="/var/run/$NAME.pid"

# Fail gracefully if package has been removed
[ -x "$INTERPRETER" ] || exit 0
[ -x "$PYTOMATION_SCRIPT" ] || exit 0

# Start with a reasonable PATH setting
PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"

# Load rcS variables
. /lib/init/vars.sh

# Load standard LSB functions including log_* functions.
# Requires lsb-base (>= 3.0-6)
. /lib/lsb/init-functions

# Start Pytomation
do_start()
{
    start-stop-daemon --start \
                      --quiet \
                      --background \
                      --pidfile "$PID_FILE" \
                      --make-pidfile \
                      --chdir "$PYTOMATION_DIR" \
                      --chuid "$PYTOMATION_USER" \
                      --exec "$INTERPRETER" -- $PYTOMATION_SCRIPT \
        || return 1
}

# Stop Pytomation
do_stop()
{
    local result
    start-stop-daemon --stop \
                      --quiet \
                      --pidfile "$PID_FILE"
    result="$?"
    [ "$result" = 2 ] && return 2
    if [ -e "$PIDFILE" ]; then
        rm "$PID_FILE"
    fi
    return $result
}


case "$1" in
    start)
        log_daemon_msg "Starting $DESC" "$NAME"
        do_start
        case "$?" in
            0|1) log_end_msg 0 ;;
            2) log_end_msg 1 ;;
        esac
        ;;
    stop)
        log_daemon_msg "Stopping $DESC" "$NAME"
        do_stop
        case "$?" in
            0|1) log_end_msg 0 ;;
            2) log_end_msg 1 ;;
        esac
        ;;
    status)
        status_of_proc -p "$PID_FILE" "$DAEMON" "$NAME" && exit 0 || exit $?
        ;;
    restart|force-reload)
        log_daemon_msg "Restarting $DESC" "$NAME"
        do_stop
        case "$?" in
            0|1)
                do_start
                case "$?" in
                    0) log_end_msg 0 ;; # Success
                    1) log_end_msg 1 ;; # Old process still running
                    *) log_end_msg 1 ;; # Could not start new process
                esac
                ;;
            *)
                # Could not stop process
                log_end_msg 1
                ;;
        esac
        ;;
    *) # Display a usage option.
        echo "Usage: $SCRIPT_NAME {start|stop|restart|status}"
        exit 1
        ;;
esac

exit 0