#! /bin/sh
### BEGIN INIT INFO
# Provides:          gitautodeploy
# Required-Start:    $remote_fs $syslog $network
# Required-Stop:     $remote_fs $syslog $network
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Script to start Autodeploy Git
# Description:       Autodeploy script for Gitlab
### END INIT INFO

# Author: JA Nache <nache.nache@gmail.com>

NAME="git-auto-deploy"
PATH=/sbin:/usr/sbin:/bin:/usr/bin
DESC="GitAutodeploy"
DAEMON="/usr/bin/env python -m /opt/Git-Auto-Deploy/gitautodeploy"
DAEMON_UID=root
DAEMON_GID=root
RUNDIR=/var/run/$NAME
PIDFILE=/var/run/$NAME.pid
LOGFILE=/var/log/$NAME.log
PWD=/opt/Git-Auto-Deploy/
OPTIONS="--daemon-mode --quiet --pid-file $PIDFILE --log-file $LOGFILE"
USER=root
SCRIPTNAME=/etc/init.d/$NAME

# Exit if the package is not installed
#[ -x $DAEMON ] || echo "$NAME is not installed" && exit 0

# Load the VERBOSE setting and other rcS variables
. /lib/init/vars.sh

# Define LSB log_* functions.
. /lib/lsb/init-functions

# Read configuration variable file if it is present
[ -r /etc/default/$NAME ] && . /etc/default/$NAME || ENABLE_GITAUTODEPLOY=yes

#
# Check whether daemon starting is enabled
#
check_start_daemon() {
	if [ ! "$ENABLE_GITAUTODEPLOY" = "yes" ]; then
		[ "$VERBOSE" != no ] && \
			log_warning_msg "Not starting gitautodeploy, disabled via /etc/default/gitautodeploy"
		return 1
	else
		return 0
	fi
}

#
# 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

	if [ ! -d $RUNDIR ]; then
		mkdir $RUNDIR
	fi
	
	if ! dpkg-statoverride --list $dir >/dev/null 2>&1; then
		chown $DAEMON_UID:$DAEMON_GID $RUNDIR
		chmod g-w,o-rwx $RUNDIR
	fi

	start-stop-daemon --start --quiet --chdir $PWD --pidfile $PIDFILE --startas $DAEMON \
		--name $NAME --test > /dev/null \
		|| return 1
	start-stop-daemon --start --quiet --chdir $PWD --pidfile $PIDFILE --startas $DAEMON \
		--name $NAME --umask 0027 --chuid $DAEMON_UID:$DAEMON_GID -- $OPTIONS \
		|| 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
	start-stop-daemon --stop --signal 6 --retry 30 --pidfile $PIDFILE 
}

#
# Function that reload the daemon/service
#
do_reload()
{
	start-stop-daemon --stop -s 1 --pidfile $PIDFILE
}

case "$1" in
  start)
	check_start_daemon || exit 0
	[ "$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 -p $PIDFILE "python" "$DAEMON" && exit 0 || exit $?

	;;
  reload)
	do_reload
	;;
  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

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