gulpfile.js

var gulp = require('gulp'),
 path = require('path'),
 header = require('gulp-header'),
 webpack = require('webpack'),
 gulpWebpack = require('gulp-webpack'),
 extend = require('util')._extend,
 pkg = require('./package.json'),
 clone = require('clone'),
 distPath = path.join(__dirname, 'dist'),
 webpackBuildConfig = require("./webpack.config.build");

var banner = ['/**',
 ' * <%= pkg.name %> - <%= pkg.description %>',
 ' * @version v<%= pkg.version %>',
 ' * @author <%= pkg.author %>',
 ' * @link <%= pkg.homepage %>',
 ' * @license <%= pkg.license %>',
 ' */',
 ''
].join('\n');

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

gulp.task("build:dev", function (callback) {
 var webpackConfig = clone(webpackBuildConfig);
 webpackConfig.output.filename = pkg.name + '.js';
 return gulp.src(webpackConfig.entry)
 .pipe(gulpWebpack(webpackConfig))
 .pipe(header(banner, {
 pkg: pkg
 }))
 .pipe(gulp.dest(distPath));
});

gulp.task("build:prod", function (callback) {
 var webpackConfig = clone(webpackBuildConfig);
 webpackConfig.output.filename = pkg.name + '.min.js';
 webpackConfig.plugins.push(new webpack.optimize.UglifyJsPlugin());
 return gulp.src(webpackConfig.entry)
 .pipe(gulpWebpack(webpackConfig))
 .pipe(header(banner, {
 pkg: pkg
 }))
 .pipe(gulp.dest(distPath));
});