Webpack config

gistfile1.txt

const path = require("path");
const CleanWebpackPlugin = require('clean-webpack-plugin');
const MiniCssExtractPlugin = require("mini-css-extract-plugin");
const HtmlWebpackPlugin = require("html-webpack-plugin");
const merge = require("webpack-merge");
const HtmlWebpackTagsPlugin = require('html-webpack-tags-plugin')
const ScriptExtHtmlWebpackPlugin = require('script-ext-html-webpack-plugin')
const TerserJSPlugin = require('terser-webpack-plugin');
const OptimizeCSSAssetsPlugin = require('optimize-css-assets-webpack-plugin');

const loadImages = ({ include, exclude, options } = {}) => ({
    module: {
        rules: [
            {
                test: /\.(png|jpg|webp|svg)$/,
                include,
                exclude,
                use: {
                    loader: "url-loader",
                    options,
                },
            },
        ],
    },
});

const commonConfig = merge([
    {
        // Where to start bundling
        entry: {
            app: "./src/index.js",
        },
        // Where to output
        output: {
            // Output to the same directory
            path: path.resolve(__dirname, 'dist'),

            // Capture name from the entry using a pattern
            chunkFilename: "[name].[chunkhash:4].js",
            filename: "[name].[chunkhash:4].js",
        },
        module: {
            rules: [
                {
                    test: /\.js$/,
                    use: "babel-loader",
                    exclude: /node_modules/,
                },
                {
                    test: /\.(ttf|eot|woff|otf|woff2)$/,
                    use: {
                        loader: "file-loader",
                        options: {
                            name: "fonts/[name].[ext]",
                        },
                    },
                },
            ]
        },
        plugins: [
            new HtmlWebpackPlugin({
                inject: true,
                inlineSource: '.css$',
                template: path.resolve(__dirname, 'index.html'),
            }),
            new CleanWebpackPlugin(path.resolve(__dirname, 'dist'), {} ),
        ],
    }
]);

const prodConfig = merge([
    {
        module: {
            rules: [
                {
                    test: /\.css$/,
                    use: ["style-loader", MiniCssExtractPlugin.loader, "css-loader"],
                },
                {
                    test: /\.s[ac]ss$/i,
                    use: [
                        "style-loader",
                        {
                            loader: MiniCssExtractPlugin.loader,
                            options: {
                                publicPath: './'
                            }
                        },
                        "css-loader",
                        "sass-loader"
                    ],
                },
                {
                    test: /\.(html)$/,
                    use: {
                        loader: 'html-loader',
                        options: {
                            attrs: ['img:src', ':srcset']
                        }
                    }
                },
                {
                    test: /\.(jpg|png|webp|svg)$/,
                    use: {
                        loader: "file-loader",
                        options: {
                            name: "/assets/img/[name].[hash].[ext]",
                        },
                    },
                },
            ],
        },
        plugins: [
            new MiniCssExtractPlugin({
                filename: '[name].[contenthash].css',
            }),
            new ScriptExtHtmlWebpackPlugin({
                defaultAttribute: 'defer'
            })
        ],
    },
    {
        optimization: {
            splitChunks: {
                cacheGroups: {
                    commons: {
                        test: /[\\/]node_modules[\\/]/,
                        name: "vendor",
                        chunks: "initial",
                    },
                },
            },
            runtimeChunk: {
                name: "manifest",
            },
            minimizer: [new TerserJSPlugin({}), new OptimizeCSSAssetsPlugin({})],
        },
    },
    {
        recordsPath: path.join(__dirname, "records.json")
    }
    // loadImages(),
]);

const devConfig = merge([
    {
        module: {
            rules: [
                {
                    test: /\.css$/,
                    use: ["style-loader", "css-loader"],
                },
                {
                    test: /\.s[ac]ss$/i,
                    use: ["style-loader", "css-loader", "sass-loader"],
                }
            ],
        },
    },
    loadImages(),
    {
        plugins: [
            new HtmlWebpackTagsPlugin({
                append: true, links: '/src/styles/sprites.css'
            })
        ],
    }
])

module.exports = mode => {
    if (mode === "production") {
        return merge(commonConfig, prodConfig, { mode });
    }

    return merge(commonConfig, devConfig, { mode });
};