control

#!/bin/bash

source $OPENSHIFT_CARTRIDGE_SDK_BASH
source $HOME/nodejs/lib/util

START_COMMAND=$(node -e "var p = require('$OPENSHIFT_REPO_DIR/package.json'); console.log(p.scripts.start);")
STOP_COMMAND=$(node -e "var p = require('$OPENSHIFT_REPO_DIR/package.json'); console.log(p.scripts.stop || '');")

function is_running() {
  if [ ! -z "$(ps -ef | grep "$START_COMMAND" | grep -v grep)" ]; then
    return 0
  else
    return 1
  fi
}

function pre-repo-archive() {
  if [ -d ${OPENSHIFT_REPO_DIR}node_modules ]; then
    rm -rf ${OPENSHIFT_DATA_DIR}node_modules
    mv -f ${OPENSHIFT_REPO_DIR}node_modules ${OPENSHIFT_DATA_DIR}
  fi
}

function build() {
  update_nodejs
  local INIT_DIR=`pwd`
  cd ${OPENSHIFT_REPO_DIR}
  if [ -d ${OPENSHIFT_DATA_DIR}node_modules ]; then
    rm -rf ./node_modules
    mv -f ${OPENSHIFT_DATA_DIR}node_modules ./
    rm -rf ${OPENSHIFT_DATA_DIR}node_modules
  fi
  npm prune --production
  npm i --production
  cd ${INIT_DIR}
  client_result 'Node.js modules installed.'
}

function start() {
  if is_running; then
    client_result 'Application is already running.'
  else
    client_message 'Starting Node.js application...'
    local INIT_DIR=`pwd`
    cd ${OPENSHIFT_REPO_DIR}
    nohup ${START_COMMAND} |& /usr/bin/logshifter -tag nodejs &
    cd ${INIT_DIR}
    i=0
    while ! is_running && [ $i -lt 60 ]; do
      sleep 1
      i=$(($i + 1))
    done
    if is_running; then
      client_result 'Node.js application started.'
    else
      client_result 'Warning! Could not start Node.js application!'
      exit 1
    fi
  fi
}

function stop() {
  if ! is_running; then
    client_result 'Application is already stopped.'
  else
    client_message 'Stopping Node.js application...'
    if [[ ! -z "$STOP_COMMAND"  ]]; then
        local INIT_DIR=`pwd`
        cd ${OPENSHIFT_REPO_DIR}
        $STOP_COMMAND > /dev/null 2>&1
        cd ${INIT_DIR}
    else
        kill $(ps -ef | grep "$START_COMMAND" | grep -v grep | awk '{ print $2  }') > /dev/null 2>&1
    fi
    i=0
    while is_running && [ $i -lt 60 ]; do
      sleep 1
      i=$(($i + 1))
    done
    if is_running; then
      client_result 'Warning! Could not stop Node.js application!'
      exit 1
    else
      client_result 'Node.js application stopped.'
    fi
  fi
}

function restart() {
  stop
  start
}

function status() {
  if is_running; then
    client_result 'Node.js application appears to be running.'
  else
    client_result 'Node.js application appears to be stopped.'
  fi
}

function tidy() {
  shopt -s dotglob
  client_message "Emptying logs in ${OPENSHIFT_LOG_DIR}..."
  rm -rf ${OPENSHIFT_LOG_DIR}/*.log*
  client_message 'Done tidying up Node.js cartridge.'
}

case ${1} in
  pre-repo-archive) pre-repo-archive ;;
  build)            build            ;;
  start)            start            ;;
  stop)             stop             ;;
  restart)          restart          ;;
  status)           status           ;;
  tidy)             tidy             ;;
  *)                exit 0
esac