webpack.config.js

const path = require('path')
const Webpack = require('webpack')
const ExtractTextPlugin = require('extract-text-webpack-plugin')

module.exports = {
    entry: {
        demo: './demo/main.js',
        sortByDnd: './src/dnd.js',
        vueSortByDnd: './src/directive.js'
    },
    output: {
        path: path.resolve(__dirname, './dist'),
        publicPath: '/dist/',
        filename: '[name].js'
    },
    module: {
        rules: [
            {
                test: /\.vue$/,
                loader: 'vue-loader',
                options: {
                    loaders: {
                        css: 'vue-style-loader!css-loader',
                        less: 'vue-style-loader!css-loader!less-loader'
                    }
                }
            },
            {
                test: /\.js$/,
                loader: 'babel-loader',
                exclude: /node_modules/
            },
            {
                test: /\.css$/,
                loader: ['vue-style-loader', 'css-loader']
            },
        ]
    },
    resolve: {
        modules: [
            './src',
            './node_modules'
        ],
        extensions: ['.js', '.vue'],
        alias: {
            'vue$': 'vue/dist/vue.esm.js'
        }
    },
    devServer: {
        historyApiFallback: true,
        noInfo: true
    },
    performance: {
        hints: false
    },
    devtool: '#eval-source-map'
}

if (process.env.NODE_ENV === 'production') {

    module.exports.devtool = ''
    module.exports.plugins = (module.exports.plugins || []).concat([
        new Webpack.DefinePlugin({
            'process.env': {
                NODE_ENV: '"production"'
            }
        }),
        new Webpack.optimize.UglifyJsPlugin({
            sourceMap: true,
            compress: {
                warnings: false
            }
        }),
        new Webpack.LoaderOptionsPlugin({
            minimize: true
        })
    ])
}