app.js

// Load Ember into the global scope by requiring it
require('ember');

// Go have fun
var app = Ember.Application.create();

gulpfile.js

var gulp       = require('gulp');
var browserify = require('gulp-browserify');
var handlebars = require('gulp-ember-handlebars');
var myth       = require('gulp-myth');
var hint       = require('gulp-jshint');
var concat     = require('gulp-concat');
var cache      = require('gulp-cache');
var gif        = require('gulp-if');
var uglify     = require('gulp-uglify');

var debug = process.env.NODE_ENV !== 'production';

gulp.task('hint', function () {
  return gulp.src('assets/**/*.js')
    .pipe(hint());
});

gulp.task('scripts', ['hint', 'templates'], function () {
  var ember = debug ? 'ember.js' : 'ember.prod.js';
  return gulp.src('assets/js/app.js')
    .pipe(browserify({
      debug: debug,
      shim: {
        jquery: {
          path: 'bower_components/jquery/jquery.js',
          exports: '$'
        },
        handlebars: {
          path: 'bower_components/handlebars/handlebars.js',
          exports: 'Handlebars'
        },
        templates: {
          path: 'builds/templates.js',
          exports: 'Ember.TEMPLATES'
        },
        ember: {
          path: 'bower_components/ember/' + ember,
          exports: 'ember',
          depends: {
            handlebars: 'Handlebars',
            jquery: '$'
          }
        },
      }
    }))
    .on('prebundle', function (bundle) {
      bundle.add('../../bower_components/ember/' + ember);
      bundle.add('../../builds/templates.js');
    })
    .pipe(gif(!debug, uglify()))
    .pipe(gulp.dest('builds/js'));
});

gulp.task('templates', function () {
  return gulp.src('assets/**/*.hbs')
    .pipe(cache(handlebars({
      outputType: 'cjs',
      templateRoot: 'assets/templates/',
      processName: function (name) {
        name = name.split('/').slice(1).join('/').replace(/\.hbs/, '');
        return name;
      }
    })))
    .pipe(concat('templates.js'))
    .pipe(gulp.dest('builds'));
});

gulp.task('styles', function () {
  return gulp.src('assets/css/master.css')
    .pipe(myth())
    .pipe(gulp.dest('builds/css'));
});

gulp.task('default', ['styles', 'scripts'], function () { });

gulp.task('watch', function () {
  gulp.watch('assets/**/*.js', ['scripts']);
  gulp.watch('assets/**/*.hbs', ['scripts']);
  gulp.watch('assets/**/*.css', ['styles']);
});