# -*- mode: conf -*-

include rattail/contrib/init.d/*

#!/bin/sh

# -*- coding: utf-8  -*-

################################################################################

#

#  Rattail -- Retail Software Framework

#  Copyright © 2010-2015 Lance Edgar

#

#  This file is part of Rattail.

#

#  Rattail is free software: you can redistribute it and/or modify it under the

#  terms of the GNU Affero General Public License as published by the Free

#  Software Foundation, either version 3 of the License, or (at your option)

#  any later version.

#

#  Rattail 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 Affero General Public License for

#  more details.

#

#  You should have received a copy of the GNU Affero General Public License

#  along with Rattail.  If not, see <http://www.gnu.org/licenses/>.

#

################################################################################

# This script is mostly based on the ``/etc/init.d/skeleton`` file from a

# Debian 6 system.

DESC=${DESC:-"Rattail Data Synchronizer"}

NAME=${NAME:-"rattail-datasync"}

SCRIPTNAME=${SCRIPTNAME:-"/etc/init.d/$NAME"}

PIDFILE=${PIDFILE:-"/var/run/rattail/$NAME.pid"}

PYTHON=${PYTHON:-"/usr/bin/python"}

RATTAIL=${RATTAIL:-"/usr/local/bin/rattail"}

RATTAIL_ARGS=${RATTAIL_ARGS:-""}

DATASYNC_ARGS=${DATASYNC_ARGS:-"--pidfile=$PIDFILE"}

USER=${USER:-"rattail"}

GROUP=${GROUP:-"rattail"}

# Read configuration variable files if present.

[ -r /etc/default/rattail ] && . /etc/default/rattail

[ -r /etc/default/$NAME ] && . /etc/default/$NAME

# Load the VERBOSE setting and other rcS variables.

. /lib/init/vars.sh

# Define LSB log_* functions.

# Depend on lsb-base (>= 3.2-14) to ensure that this file is present

# and status_of_proc is working.

. /lib/lsb/init-functions

create_pid_dir() {

    PIDDIR=`dirname "$PIDFILE"`

    if [ ! -d "$PIDDIR" ]; then

        mkdir --parents "$PIDDIR"

    fi

    chown $USER:$GROUP "$PIDDIR"

}

#

# Function that starts the daemon/service

#

do_start()

{

    # Return

    #   0 if daemon has been started

    #   1 if daemon was already running

    #   2 if daemon could not be started

    create_pid_dir

    start-stop-daemon --start --pidfile $PIDFILE --exec $PYTHON --user $USER --test --quiet > /dev/null \

        || return 1

    start-stop-daemon --start --pidfile $PIDFILE --exec $PYTHON --startas $RATTAIL --chuid $USER --group $GROUP --quiet -- \

        $RATTAIL_ARGS datasync $DATASYNC_ARGS start \

        || return 2

}

#

# Function that stops the daemon/service

#

do_stop()

{

    # Return

    #   0 if daemon has been stopped

    #   1 if daemon was already stopped

    #   2 if daemon could not be stopped

    #   other if a failure occurred

    sudo -u $USER $RATTAIL $RATTAIL_ARGS datasync $DATASYNC_ARGS stop > /dev/null 2>&1

}

case "$1" in

    start)

        [ "$VERBOSE" != no ] && log_daemon_msg "Starting $DESC" "$NAME"

        do_start

        case "$?" in

            0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;

            2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;

        esac

        ;;

    stop)

        [ "$VERBOSE" != no ] && log_daemon_msg "Stopping $DESC" "$NAME"

        do_stop

        case "$?" in

            0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;

            2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;

        esac

        ;;

    status)

        status_of_proc "$DAEMON" "$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 ;;

                    1) log_end_msg 1 ;; # Old process is still running

                    *) log_end_msg 1 ;; # Failed to start

                esac

                ;;

            *)

                # Failed to stop

                log_end_msg 1

                ;;

        esac

        ;;

    *)

        echo "Usage: $SCRIPTNAME {start|stop|status|restart|force-reload}" >&2

        exit 3

        ;;

esac

: