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webpack.config.js
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webpack.config.js
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const webpack = require('webpack');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const { CleanWebpackPlugin } = require('clean-webpack-plugin');
const CopyWebpackPlugin = require('copy-webpack-plugin');
const TerserPlugin = require('terser-webpack-plugin');
const CssMinimizerPlugin = require('css-minimizer-webpack-plugin');
const { InjectManifest } = require('workbox-webpack-plugin');
module.exports = function (env, argv) {
const isProduction = argv.mode === 'production';
const createSourceMaps = !isProduction;
return {
output: {
filename: isProduction ? '[name].[contenthash].js' : '[name].js',
path: __dirname + '/dist',
publicPath: isProduction ? '' : undefined,
},
// Enable sourcemaps for debugging webpack's output.
devtool: createSourceMaps && 'source-map',
resolve: {
// Add '.ts' and '.tsx' as resolvable extensions.
extensions: ['.ts', '.tsx', '.js', '.json'],
mainFields: ['browser', 'module', 'jsnext:main', 'main'],
},
module: {
rules: [
// All files with a '.ts' or '.tsx' extension will be handled by 'ts-loader'.
{
test: /\.tsx?$/,
loader: 'ts-loader',
type: isProduction ? 'javascript/esm' : 'javascript/auto', // hotloading needs commonjs enabled
},
// All output '.js' files will have any sourcemaps re-processed by 'source-map-loader'.
{
enforce: 'pre',
test: /\.js$/,
loader: 'source-map-loader',
},
{
test: /\.(png|jpg|gif|svg)$/,
type: 'asset',
},
{
test: /\.s?css$/,
use: [
isProduction ? MiniCssExtractPlugin.loader : 'style-loader',
{ loader: 'css-loader', options: { sourceMap: createSourceMaps } },
{
loader: 'postcss-loader',
options: {
postcssOptions: {
plugins: [require.resolve('autoprefixer')],
},
sourceMap: createSourceMaps,
},
},
{ loader: 'sass-loader', options: { sourceMap: createSourceMaps } },
],
},
{
test: /\.html$/,
use: [
{
loader: 'html-loader',
options: { minimize: isProduction },
},
],
},
],
},
plugins: [
new HtmlWebpackPlugin({
template: 'src/index.html',
}),
new CopyWebpackPlugin({
patterns: ['src/manifest.webmanifest'],
}),
...(isProduction
? [
new CleanWebpackPlugin(),
new MiniCssExtractPlugin({
filename: isProduction ? '[name].[contenthash].css' : '[name].css',
}),
new InjectManifest({
swSrc: './src/sw.ts',
swDest: 'sw.js',
}),
]
: []),
],
optimization: {
splitChunks: {
chunks: 'all',
},
runtimeChunk: true,
minimizer: [
new TerserPlugin({
parallel: true,
terserOptions: {
sourceMap: createSourceMaps,
},
}),
new CssMinimizerPlugin(),
],
},
devServer: {
static: false,
},
};
};