gulpfile.js

var gulp = require('gulp');
var concat = require('gulp-concat');
var replace = require('gulp-replace');
var rename = require('gulp-rename');
var footer = require('gulp-footer');
var fs = require('fs');
var clone = require('gulp-clone');
var uglify = require('gulp-uglify');
var jshint = require('gulp-jshint');
var stylish = require('jshint-stylish');
var jscs = require('gulp-jscs');
var packageInfo = require('./package.json');

var files = ['modulex.js',
  'utils.js', 'data-structure.js',
  'css-onload.js', 'get-script.js',
  'configs.js', 'combo-loader.js',
  'init.js', 'i18n.js'];

files.forEach(function (f, i) {
  files[i] = './lib/' + f;
});

gulp.task('lint', function () {
  return gulp.src('lib/**/*.js')
    .pipe(jshint())
    .pipe(jshint.reporter(stylish))
    .pipe(jshint.reporter('fail'))
    .pipe(jscs());
});

gulp.task('tag', function (done) {
  var cp = require('child_process');
  var version = packageInfo.version;
  cp.exec('git tag ' + version + ' | git push origin ' + version + ':' + version + ' | git push origin master:master', done);
});

var wrapper = require('gulp-wrapper');
var date = new Date();
var header = ['/*',
  'Copyright ' + date.getFullYear() + ', ' + packageInfo.name + '@' + packageInfo.version,
  packageInfo.license + ' Licensed',
  'build time: ' + (date.toGMTString()),
  '*/', ''].join('\n');

gulp.task('default', ['lint'], function () {
  var concatFile = gulp.src(files)
    .pipe(replace(/@VERSION@/g, packageInfo.version))
    .pipe(replace(/@TIMESTAMP@/g, new Date().toUTCString()))
    .pipe(concat('modulex-debug.js'))
    .pipe(wrapper({
      header: header
    }))
    .pipe(gulp.dest('./build'));

  var concatFile2 = concatFile.pipe(clone());

  concatFile.pipe(replace(/@DEBUG@/g, ''))
    .pipe(uglify())
    .pipe(rename('modulex.js'))
    .pipe(gulp.dest('./build'));

  concatFile2.pipe(footer(fs.readFileSync('./lib/nodejs.js', 'utf-8')))
    .pipe(concat('modulex-nodejs.js'))
    .pipe(gulp.dest('./build'));

  gulp.src('lib/import-style.js')
    .pipe(rename('import-style-debug.js'))
    .pipe(wrapper({
      header: header
    }))
    .pipe(gulp.dest('./build'))
    .pipe(uglify())
    .pipe(rename('import-style.js'))
    .pipe(gulp.dest('./build'));
});

gulp.task('watch', function () {
  gulp.watch('./lib/**/*.js', ['default']);
});

gulp.task('saucelabs', function (done) {
  require('saucelabs-runner')({
    browsers: [
      {browserName: 'internet explorer', version: 10},
      {browserName: 'internet explorer', version: 11},
      {browserName: 'chrome'},
      {browserName: 'firefox'},
      {browserName: 'internet explorer', version: 8},
      {browserName: 'internet explorer', version: 9}
    ]
  }).fin(function () {
    done();
    setTimeout(function () {
      process.exit(0);
    }, 1000);
  });
});