gulpfile.js

'use strict';

var gulp = require('gulp');
var del = require('del');
var Builder = require('systemjs-builder');
var ts = require('gulp-typescript');
var plumber = require('gulp-plumber');
var sourcemaps = require('gulp-sourcemaps');

var http = require('http');
var connect = require('connect');
var serveStatic = require('serve-static');
var openResource = require('open');

gulp.task('clean', function (done) {
  del(['dev'], done);
});

gulp.task('build:angular2', function () {
  var builder = new Builder({
    paths: {
      'angular2/*': 'node_modules/angular2/es6/prod/*.es6',
      rx: 'node_modules/angular2/node_modules/rx/dist/rx.js'
    },
    meta: {
      rx: {
        format: 'cjs'
      }
    }
  });
  builder.build('angular2/router', './lib/router.js', {});
  return builder.build('angular2/angular2', './lib/angular2.js', {});
});

gulp.task('build:lib', ['build:angular2'], function () {
  gulp.src([
    './node_modules/angular2/node_modules/traceur/bin/traceur-runtime.js',
    './node_modules/angular2/node_modules/zone.js/dist/zone.js',
    './node_modules/es6-module-loader/dist/es6-module-loader-sans-promises.js',
    './node_modules/es6-module-loader/dist/es6-module-loader-sans-promises.js.map',
    './node_modules/reflect-metadata/Reflect.js',
    './node_modules/reflect-metadata/Reflect.js.map',
    './node_modules/systemjs/dist/system.js',
    './node_modules/systemjs/dist/system.js.map'
  ])
  .pipe(gulp.dest('./lib'));
});

var tsProject = ts.createProject('tsconfig.json', {
  typescript: require('typescript')
});

gulp.task('build', ['clean'], function () {
  var result = gulp.src('./ts/**/*.ts')
    .pipe(plumber())
    .pipe(sourcemaps.init())
    .pipe(ts(tsProject));

  return result.js
    .pipe(sourcemaps.write())
    .pipe(gulp.dest('./dev'));
});

gulp.task('serve', ['build:lib', 'build'], function () {
  var port = 5555;
  var app;

  gulp.watch('./ts/**', ['build']);

  app = connect().use(serveStatic(__dirname));
  http.createServer(app).listen(port, function () {
    openResource('http://localhost:' + port);
  });
});