React with gulp

gulpfile.js

'use strict';

var gulp = require('gulp');
var react = require('gulp-react');
var browserify = require('browserify');
var source = require('vinyl-source-stream');

var browserfyConfig = {
    entries: ['./js/index.js'],
    standalone: 'app'
};

gulp.task('lib', function () {
    return gulp.src('src/*.js')
    .pipe(react({harmony: true}))
    .pipe(gulp.dest('js'));
});

gulp.task('browserify', ['lib'], function () {
    return browserify(browserfyConfig)
    .bundle()
    .pipe(source('app.js'))
    .pipe(gulp.dest('./js/'));
});

gulp.task('build', ['lib', 'browserify']);

gulp.task('default', ['build']);

package.json

{
  "name": "sw2",
  "version": "0.0.0",
  "description": "nekosheet-sw2",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "author": "",
  "license": "MIT",
  "devDependencies": {
    "browserify": "^10.1.3",
    "gulp": "^3.8.11",
    "gulp-react": "^3.0.1",
    "vinyl-source-stream": "^1.1.0"
  },
  "dependencies": {
    "react": "^0.13.3"
  }
}