control

#!/bin/bash

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

if [ -f "$OPENSHIFT_REPO_DIR/.openshift/SOURCE_DIR" ]; then
  SOURCE_DIR=$OPENSHIFT_REPO_DIR$(cat $OPENSHIFT_REPO_DIR/.openshift/SOURCE_DIR)
else
  SOURCE_DIR=${OPENSHIFT_REPO_DIR}
fi
if [ -f "$SOURCE_DIR/package.json" ]; then
  START_COMMAND=$(node -e "var p = require('$SOURCE_DIR/package.json'); console.log(p.scripts.start);")
else
  START_COMMAND="supervisor server.js"
fi
function is_running() {
  if [ ! -z "$(ps -ef | grep "$START_COMMAND" | grep -v grep)" ]; then
    return 0
  else
    return 1
  fi
}

function pre-repo-archive() {
  if [ -d ${SOURCE_DIR}node_modules ]; then
    mv -f ${SOURCE_DIR}node_modules ${TMP}
  fi
}

function build() {
  client_message 'Check for updates...'
  update_nodejs
  client_message 'Installing modules...'
  local INIT_DIR=`pwd`
  cd ${SOURCE_DIR}
  if [ -d ${TMP}node_modules ]; then
    mv -f ${TMP}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 ${SOURCE_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...'
    kill $(ps -ef | grep "$START_COMMAND" | grep -v grep | awk '{ print $2 }') > /dev/null 2>&1
    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.'
}

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