#!/bin/bash


set -u
set -e

# Change these to match your app:
APP_NAME=php_app
APP_RUBY=2.1.2
APP_ROOT="/home/web/php_app/current"
PID="/home/web/php_app/shared/unicorn.pid"
ENV=production

GEM_HOME="/home/web/.rvm/gems/ruby-$APP_RUBY"

UNICORN_OPTS="-D -E $ENV -c $APP_ROOT/config/unicorn.rb"

SET_PATH="cd $APP_ROOT; rvm $APP_RUBY"
CMD="$SET_PATH; unicorn $UNICORN_OPTS"

old_pid="$PID.oldbin"

cd $APP_ROOT || exit 1

sig () {
  test -s "$PID" && kill -$1 `cat $PID`
}

oldsig () {
  test -s $old_pid && kill -$1 `cat $old_pid`
}

case ${1-help} in
  start)
 sig 0 && echo >&2 "Already running" && exit 0
 su - web -c "$CMD"
 ;;
  stop)
 sig QUIT && exit 0
 echo >&2 "Not running"
 ;;
  force-stop)
 sig TERM && exit 0
 echo >&2 "Not running"
 ;;
  restart|reload)
 sig HUP && echo reloaded OK && exit 0
 echo >&2 "Couldn't reload, starting '$CMD' instead"
 su - web -c "$CMD"
 ;;
  upgrade)
 sig USR2 && exit 0
 echo >&2 "Couldn't upgrade, starting '$CMD' instead"
 su - web -c "$CMD"
 ;;
  rotate)
 sig USR1 && echo rotated logs OK && exit 0
 echo >&2 "Couldn't rotate logs" && exit 1
 ;;
  *)
 echo >&2 "Usage: $0 "
 exit 1
 ;;
esac