AngularJS + Browserify - Example of index files and alias

app.js

/** @module app/app */
'use strict';

// Modernizr (https://www.npmjs.org/package/browsernizr, https://github.com/jnordberg/browsernizr)
require('browsernizr/lib/html5shiv');
require('browsernizr/lib/addTest');
require('browsernizr/test/svg');
var Modernizr = require('browsernizr');

// Detect mobile - yay
Modernizr.addTest('mobilebrowser', function () {
	return require('./scripts/plugins/detectmobilebrowsers')();
});

// jQuery include - make available in window before Angular loads, so Angular uses true jQuery objects.
var $, jQuery = require('jquery');
window.jQuery = window.$ = $ = jQuery;

// Angular setup
var angular = require('angular');

var app = angular.module('app', []);

// Local implementations
require('./scripts/filters');
require('./scripts/services');
require('./scripts/controllers');
require('./scripts/directives');

module.exports = app;

gulpfile.js

/** @module gulpfile */

// Import tasks
var browserify = require('gulp-browserify');
var plumber = require('gulp-plumber');
var flatten = require('flatten');
var uglify = require('gulp-uglify');
var ngAnnotate = require('gulp-ng-annotate');
var gutil = require('gulp-util');
var gulp = require('gulp');

// Determine whether running in production or not:
// If NODE_ENV=production or invoking gulp with --production argument.
var isProduction = process.env.NODE_ENV === 'production' || !!gutil.env.production;


// Compile and minify JS files using Browserify/CommonJS.
// In production everything is minified to a single bundle.
// Otherwise (in development) the JS is output with source maps.
gulp.task('js', function(){
	gulp.src('app/app.js')
		.pipe(plumber())
		.pipe(
			browserify({
				// Do not parse require statements in certain modules for faster builds.
				noParse: [
					'jquery', 'angular'
				],
				shim: {
					'jquery': {
						path: './app/scripts/plugins/jquery/jquery-1.11.1.js',
						exports: '$'
					},
					'angular': {
						path: './app/scripts/plugins/angular/angular.js',
						exports: 'angular'
					}
				},
				insertGlobals: true,
				debug: !isProduction
			})
		)
		.pipe(isProduction ? ngAnnotate() : gutil.noop())
		.pipe(isProduction ? uglify() : gutil.noop())
		.pipe(gulp.dest(paths.client.destDir));
});

index.js

/** @module app/scripts/directives/index */
'use strict';

require('./module');
require('./another-module');

module.js

/** @module app/scripts/directives/module */
'use strict';

var angular = require('angular');

module.exports = angular.module('app')
	.directive('module', function($location) {
		return {
			restrict: 'A',
			scope: true,
			link: function($scope, $element, $attrs) {
				// Module code here
			}
		};
	});