~ubuntu-branches/ubuntu/trusty/drizzle/trusty

#!/bin/bash

#

### BEGIN INIT INFO

# Provides:          drizzle

# Required-Start:    $network $remote_fs $syslog

# Required-Stop:     $network $remote_fs $syslog

# Default-Start:     2 3 4 5

# Default-Stop:      0 1 6

# Short-Description: Start and stop the drizzle database server daemon

# Description:       Controls the main Drizzle database server daemon "drizzled"

### END INIT INFO

#

set -e

set -u

${DEBIAN_SCRIPT_DEBUG:+ set -v -x}

# Safeguard (relative paths, core dumps..)

cd /

umask 077

if [ -r "/lib/lsb/init-functions" ]; then

  . /lib/lsb/init-functions

else

  echo "E: /lib/lsb/init-functions not found, lsb-base (>= 3.0-6) needed"

  exit 1

fi

if init_is_upstart; then

    case "$1" in

	stop)

	    exit 0

	    ;;

	*)

	    exit 1

	    ;;

    esac

fi	

SELF=$(cd $(dirname $0); pwd -P)/$(basename $0)

CONF=/etc/drizzle/drizzled.cnf

DRIZZLE=/usr/bin/drizzle

DAEMON=/usr/sbin/drizzled

DRIZZLE_USER=drizzle

LOG_DIR=/var/log/drizzle

LOG=${LOG_DIR}/drizzled.log

test -x ${DAEMON} || exit 0

[ -f /etc/default/drizzled ] && . /etc/default/drizzled

# priority can be overriden and "-s" adds output to stderr

ERR_LOGGER="logger -p daemon.err -t /etc/init.d/drizzle -i"

# Check for the existance of the js plugin

JS_OPTS=""

[[ -f usr/lib/drizzle/libjs_plugin.so ]] || JS_OPTS="--plugin-remove=js"

## Fetch a particular option from drizzle's invocation.

#

# Usage: void drizzled_get_param option

drizzled_get_param() {

	$DAEMON $JS_OPTS --help --user=${DRIZZLE_USER} \

    | grep "^$1" \

    | awk '{print $2}'

}

# datadir and pidfile are broken at the moment, use the debian defaults here:

#PIDFILE=`drizzled_get_param pid-file`

#DATADIR=`drizzled_get_param datadir`

#[ -z $DATADIR ] && DATADIR=/var/lib/drizzle

#[ -z $PIDFILE ] && PIDFILE=$DATADIR/`hostname -s`.pid

DATADIR=/var/lib/drizzle

PIDFILE=$DATADIR/`hostname -s`.pid

## Checks if there is a server running and if so if it is accessible.

#

# check_alive insists on a pingable server

# check_dead also fails if there is a lost drizzled in the process list

#

# Usage: boolean drizzled_status [check_alive|check_dead] [warn|nowarn]

drizzled_status () {

    ping_output=`$DRIZZLE $JS_OPTS --ping 2>&1`; ping_alive=$(( ! $? ))

    ps_alive=0

    if [ -f "$PIDFILE" ] && ps `cat $PIDFILE` >/dev/null 2>&1; then ps_alive=1; fi

    if [ "$1" = "check_alive"  -a  $ping_alive = 1 ] ||

       [ "$1" = "check_dead"   -a  $ping_alive = 0  -a  $ps_alive = 0 ]; then

	return 0 # EXIT_SUCCESS

    else

  	if [ "$2" = "warn" ]; then

  	    echo -e "$ps_alive processes alive and '$DRIZZLE --ping' resulted in\n$ping_output\n" | $ERR_LOGGER -p daemon.debug

	fi

  	return 1 # EXIT_FAILURE

    fi

}

# Checks to see if something is already running on the port we want to use

check_protocol_port() {

    local service=$1

    port=`drizzled_get_param $1`

    if [ "x$port" != "x" ] ; then

        count=`netstat --listen --numeric-ports | grep \:$port | grep -c . `

        if [ $count -ne 0 ]; then

            log_failure_msg "The selected $service port ($port) seems to be in use by another program "

            log_failure_msg "Please select another port to use for $service"

            return 1

        fi

    fi

    return 0

}

#

# main()

#

case "${1:-''}" in

  'start')

    [ -e "${DATADIR}" ] || \

      install -d -o${DRIZZLE_USER} -g${DRIZZLE_USER} -m750 "${DATADIR}"

    [ -d /var/run/drizzle ] || install -d -o $DRIZZLE_USER -g $DRIZZLE_USER /var/run/drizzle

    # Start daemon

    log_daemon_msg "Starting Drizzle database server" "drizzled"

    check_protocol_port mysql-protocol-port || log_end_msg 0

    check_protocol_port drizzle-protocol-port || log_end_msg 0

    if [ -f "$PIDFILE" ] && ps `cat $PIDFILE` >/dev/null 2>&1;

    then

        log_progress_msg "(already running)"

        log_end_msg 0

    else

        start_daemon "$DAEMON --chuid $DRIZZLE_USER -m" "--datadir=$DATADIR" "--pid-file=$PIDFILE" "$JS_OPTS" >> $LOG 2>&1 &

        log_progress_msg "drizzled"

        log_end_msg 0

    fi

  ;;

  'stop')

    log_daemon_msg "Stopping Drizzle database server" "drizzled"

    if [ -f "$PIDFILE" ]; then

        killproc -p "$PIDFILE" "$DAEMON"

        log_progress_msg "drizzled"

    fi

    log_end_msg 0

  ;;

  'restart'|'force-reload')

    set +e; $SELF stop; set -e

    $SELF start

    ;;

  'status')

    if drizzled_status check_alive nowarn; then

      log_action_msg "Drizzle is alive."

    else

      log_action_msg "Drizzle is stopped."

      exit 3

    fi

    ;;

  *)

    echo "Usage: $SELF start|stop|restart|status"

    exit 1

  ;;

esac