main.js

'use strict'

const electron = require('electron')
const updater = require('electron-updater')

// Module to control application life.
const app = electron.app

// Module to create native browser window.
const BrowserWindow = electron.BrowserWindow

// Keep a global reference of the window object, if you don't, the window will
// be closed automatically when the JavaScript object is garbage collected.
let mainWindow

function createWindow () {
    // Create the browser window.
    mainWindow = new BrowserWindow({
        width: 1200,
        height: 800,
        title: 'Code Sketcher',
        center: true,
        titleBarStyle: 'hidden-inset'
    })

    // and load the index.html of the app.
    mainWindow.loadURL('file://' + __dirname + '/index.html')

    // Open the DevTools.
    mainWindow.webContents.openDevTools()

    // Emitted when the window is closed.
    mainWindow.on('closed', function() {
        // Dereference the window object, usually you would store windows
        // in an array if your app supports multi windows, this is the time
        // when you should delete the corresponding element.
        mainWindow = null
    })
}

updater.on('error', function (err) {
  // todo: manually handle errors here in addition to default logger behavior...
  console.error(err)
});

// This method will be called when Electron has finished
// initialization and is ready to create browser windows.
app.on('ready', function() {
    updater.on('ready', createWindow)

    updater.on('updateRequired', function() {
        app.quit()
    })

    updater.on('updateAvailable', function() {
        if(mainWindow) {
            mainWindow.webContents.send('updateAvailable')
        }
    })

    updater.on('updateInProgress', function() {
        console.log('Update already in progress...')
        console.log('If this is stuck here clean out your application update directory.')
    })

    updater.start()
})

// Quit when all windows are closed.
app.on('window-all-closed', function () {
    // On OS X it is common for applications and their menu bar
    // to stay active until the user quits explicitly with Cmd + Q
    if (process.platform !== 'darwin') {
        app.quit()
    }
})

app.on('activate', function () {
    // On OS X it's common to re-create a window in the app when the
    // dock icon is clicked and there are no other windows open.
    if (mainWindow === null) {
        createWindow()
    }
})

package.json

{
  "name": "CodeSketcher",
  "main": "main.js",
  "version": "0.0.4",
  "scripts": {
    "start": "electron main.js",
    "package": "electron-packager ./ CodeSketcher --all --out ~/Desktop/CodeSketcher --version 0.30.2 --overwrite"
  },
  "devDependencies": {
    "del": "^2.2.0",
    "electron-prebuilt": "^0.36.4",
    "gulp": "^3.9.0",
    "gulp-autoprefixer": "^3.1.0",
    "gulp-babel": "^6.1.1",
    "gulp-cache": "^0.4.1",
    "gulp-concat": "^2.6.0",
    "gulp-cssnano": "^2.1.0",
    "gulp-imagemin": "^2.4.0",
    "gulp-jshint": "^2.0.0",
    "gulp-livereload": "^3.8.1",
    "gulp-notify": "^2.2.0",
    "gulp-rename": "^1.2.2",
    "gulp-ruby-sass": "^2.0.6",
    "gulp-run": "^1.6.12",
    "gulp-uglify": "^1.5.1",
    "gulp-watch": "^4.3.5"
  },
  "dependencies": {
    "angular": "^1.4.8",
    "angular-elastic": "^2.5.1",
    "angular-highlightjs": "^0.5.1",
    "angular-hotkeys": "^1.6.0",
    "angular-loading-bar": "^0.8.0",
    "angular-local-storage": "^0.2.2",
    "angular-moment": "1.0.0-beta.3",
    "angular-sanitize": "^1.4.5",
    "angular-ui-bootstrap": "^1.1.0",
    "angular-ui-router": "^0.2.15",
    "angular-ui-sortable": "^0.13.4",
    "babel": "^6.3.26",
    "babel-preset-es2015": "^6.3.13",
    "electron-plugins": "0.0.4",
    "electron-updater": "github:vj3k0/electron-updater",
    "highlight.js": "^9.1.0",
    "image-size": "^0.4.0",
    "jquery": "^2.2.0",
    "lodash": "^4.0.0"
  }
}