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webpack.config.js
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const path = require('path');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const CopyWebpackPlugin = require('copy-webpack-plugin');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const { BundleAnalyzerPlugin } = require('webpack-bundle-analyzer');
const postcssImport = require('postcss-import');
const pkg = require('./package.json');
const ENV = process.env.NODE_ENV || 'development';
const ASSET_PATH = process.env.ASSET_PATH || '/';
const VERSION = `v${pkg.version}`;
const IS_PROD = ENV === 'production';
const SOURCE_DIR = path.resolve(__dirname, 'src');
const OUTPUT_DIR = path.resolve(__dirname, 'build');
const CLIENT_DIR = path.join(OUTPUT_DIR, VERSION);
module.exports = {
mode: ENV,
target: 'web',
context: SOURCE_DIR,
entry: ['@babel/polyfill', './index.js'],
output: {
path: CLIENT_DIR,
publicPath: ASSET_PATH,
filename: 'assets/js/[id].bundle.js',
},
optimization: {
splitChunks: {
chunks: 'all',
},
},
module: {
rules: [
{
test: /\.(jsx|js)$/,
exclude: /node_modules/,
use: {
loader: 'babel-loader',
},
},
{
test: /\.scss$/,
exclude: /node_modules/,
use: [
IS_PROD
? MiniCssExtractPlugin.loader
: {
loader: 'style-loader',
options: {
injectType: 'singletonStyleTag',
},
},
{
loader: 'css-loader',
},
{
loader: 'postcss-loader',
options: {
postcssOptions: {
plugins: (loader) => [
postcssImport({ root: loader.resourcePath }),
],
sourceMap: false,
},
},
},
{
loader: 'sass-loader',
options: {
sassOptions: {
includePaths: [SOURCE_DIR],
},
},
},
],
},
{
test: /\.css$/,
include: /node_modules/,
use: [
MiniCssExtractPlugin.loader,
'css-loader',
{
loader: 'postcss-loader',
options: {
postcssOptions: {
plugins: (loader) => [
postcssImport({ root: loader.resourcePath }),
],
sourceMap: false,
},
},
},
],
},
{
test: /\.(svg|woff2?|ttf|eot|jpe?g|png|gif)(\?.*)?$/i,
use: IS_PROD
? {
loader: 'file-loader',
options: {
name: '[name].[ext]',
outputPath: 'assets/images/',
},
}
: {
loader: 'url-loader',
},
},
],
},
plugins: [
new BundleAnalyzerPlugin(),
new MiniCssExtractPlugin({
filename: 'assets/css/[id].style.css',
}),
new CopyWebpackPlugin({
patterns: [{ from: 'favicon.ico' }],
}),
new HtmlWebpackPlugin({
title: 'React App',
filename: './index.html',
template: './index.ejs',
}),
],
devtool: IS_PROD ? 'none' : 'eval-source-map',
devServer: {
port: process.env.PORT || 8080,
host: 'localhost',
publicPath: '/',
contentBase: SOURCE_DIR,
historyApiFallback: true,
stats: 'minimal',
hot: true,
},
};