like apachectl, but for nginx

nginx.plist

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" 
                       "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
  <dict>
    <key>Label</key><string>nginx</string>
    <key>Program</key><string>/usr/local/sbin/nginx</string>
    <key>KeepAlive</key><true/>
    <key>NetworkState</key><true/>
    <key>StandardErrorPath</key><string>/var/log/nginx/error.log</string>
    <key>LaunchOnlyOnce</key><true/>
  </dict>
</plist>

nginxctl

#!/bin/sh

NGINX=/usr/local/sbin/nginx
LAUNCHCTL=/System/Library/LaunchDaemons/nginx.plist

find_nginx_pid(){
  echo `ps -ef | grep nginx | grep master | awk '{printf $2;}'`;
}

stop_nginx(){
  echo "Killing Nginx process"
  kill -6 $(find_nginx_pid)
}

restart_nginx(){
  echo "Restarting Nginx process"
  kill -HUP $(find_nginx_pid)
}

launch_nginx(){
  echo "Launching Nginx daemon"
  launchctl load ${LAUNCHCTL}
}

start_nginx(){
  echo "Starting Nginx"
  `${NGINX}`
}

check_nginx_running(){
  if [ "$(find_nginx_pid)" ]; then
    return 0
  else
    echo "Nginx is not currently running"
    return 1
  fi
}

warn_already_running(){
  if [ "$(find_nginx_pid)" ]; then
    echo "Nginx is already running"
    return 0
  else
    return 1
  fi
}

show_pid(){
  echo $(find_nginx_pid)
}

case $1 in
  start)
    warn_already_running || start_nginx
  ;;
  stop)
    check_nginx_running && stop_nginx
  ;;
  restart)
    check_nginx_running && restart_nginx
  ;;
  launch)
    warn_already_running || launch_nginx
  ;;
  pid)
    check_nginx_running && show_pid
  ;;
  *)
    echo "usage : [sudo] nginxctl [pid|start|stop|restart|launch]"
    exit 1
  ;;
esac

exit $?