ANT System V Init Script

#!/bin/sh
#
# /etc/init.d/ant -- startup script for the ANT 0.1-SNAPSHOT search engine
#
# Written by José Devezas <jld@fe.up.pt>.
#
### BEGIN INIT INFO
# Provides:          ant
# Required-Start:    $local_fs $network
# Required-Stop:     $local_fs $network
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Start ANT
# Description:       Start the ANT search engine platform
### END INIT INFO

ant_home="/opt/ant"
ant_user="jldevezas"

start_search_engine="java -jar ant-search-engine-assembly-0.4-SNAPSHOT.jar engine server 127.0.0.1"

export RAILS_ENV=production
precompile_assets_front_end="bundle exec rake assets:precompile"
start_front_end="bundle exec unicorn -E production -D -c $ant_home/front-end/config/unicorn.rb"

start() {
  su $ant_user -c "(cd $ant_home && $start_search_engine 2>/dev/null >/dev/null &)"
  su $ant_user -c "(cd $ant_home/front-end && $precompile_assets_front_end 2>/dev/null >/dev/null &)"
  su $ant_user -c "(cd $ant_home/front-end && $start_front_end)"
  return 0
}

stop() {
  if [ -r "$ant_home/run/ant-search-engine.pid" ]
  then
    su $ant_user -c "kill `cat $ant_home/run/ant-search-engine.pid`"
  fi

  if [ -r "$ant_home/run/ant-front-end.pid" ]
  then
    su $ant_user -c "kill `cat $ant_home/run/ant-front-end.pid`"
  fi
  return 0
}

case "$1" in
  start)
    echo "Starting ANT platform..."
    start
    ;;
  stop)
    echo "Stopping ANT platform..."
    stop
    ;;
  restart)
    echo "Restarting ANT platform..."
    stop && start
    ;;
  *)
    echo "Usage: $0 {start|stop|restart}"
    exit 1
    ;;
esac

exit 0