webpack.config.js

const path = require('path')
const HtmlWebpackPlugin = require('html-webpack-plugin')
const HtmlWebpackInlineSourcePlugin = require('html-webpack-inline-source-plugin')
const webpack = require('webpack')
const packageJSON = require('./package.json')

module.exports = {
    entry: './src/index.js',
    output: {
        path: path.resolve(__dirname, 'dist'),
        filename: 'bundle.js'
    },
    plugins: [
        new webpack.DefinePlugin({
            'process.env': {
                NODE_ENV: '"production"'
            }
        }),
        new HtmlWebpackPlugin({
            template: './src/index.html',
            inlineSource: '.(js|css)$',
            minify: {
                collapseWhitespace: true
            }
        }),
        new HtmlWebpackInlineSourcePlugin()
    ],
    module: {
        rules: [
            {
                test: /\.css$/,
                use: [
                    'vue-style-loader',
                    'css-loader'
                ]
            },
            {
                test: /\.vue$/,
                loader: 'vue-loader'
            },
            {
                test: /\.(png|jpg|gif|svg)$/,
                loader: 'file-loader',
                options: {
                    name: '[name].[ext]?[hash]'
                }
            },
            {
                test: /\.js$/,
                exclude: /(node_modules|bower_components)/,
                use: {
                    loader: 'babel-loader',
                    options: {
                        presets: ['babel-preset-env']
                    }
                }
            }
        ]
    },
    resolve: {
        alias: {
            'vue$': 'vue/dist/vue.esm.js'
        },
        extensions: ['*', '.js', '.vue', '.json']
    },
    devServer: {
        historyApiFallback: true,
        noInfo: true,
        overlay: true,
        proxy: {
            '/': {
                target: packageJSON.proxy,
                changeOrigin: true
            }
        }
    },
    performance: {
        hints: false
    },
    devtool: '#eval-source-map'
}

if (process.env.NODE_ENV === 'production') {
    module.exports.devtool = '#source-map'
    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
        })
    ])
} else {
    module.exports.plugins = (module.exports.plugins || []).concat([
        new webpack.DefinePlugin({
            'process.env': {
                NODE_ENV: '"development"'
            }
        })
    ])
}