ant-design/webpack.config.min.js

// webpack.config.min.js
// release min dist files
var pkg = require('./package');
var webpack = require("webpack");
var ExtractTextPlugin = require("extract-text-webpack-plugin");
var config = require("./webpack.config.js");

config.plugins = [
  new ExtractTextPlugin('[name].min.css'),
  new webpack.optimize.UglifyJsPlugin()
];
config.output.filename = config.output.filename.replace(/\.js$/, ".min.js");
delete config.entry.demo;
delete config.entry[pkg.name];

module.exports = config;