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webpack.config.ts
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webpack.config.ts
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const path = require("path");
const { CleanWebpackPlugin } = require("clean-webpack-plugin");
const ManifestPlugin = require("webpack-manifest-plugin");
const MiniCssExtractPlugin = require("mini-css-extract-plugin");
const OptimizeCSSAssetsPlugin = require("optimize-css-assets-webpack-plugin");
const TerserPlugin = require("terser-webpack-plugin");
const ForkTsCheckerWebpackPlugin = require("fork-ts-checker-webpack-plugin");
module.exports = (env, options) => {
const dist = path.resolve(__dirname, "dist");
const enableSourceMaps = true;
const setDevtool = (config) => {
if (enableSourceMaps) {
config.devtool = "source-map";
}
};
const appConfig = {
mode: "development",
entry: {
app: "./src/app.ts",
},
output: {
filename: "[name].js",
path: path.resolve(dist, "js"),
},
module: {
rules: [
{
test: /\.tsx?$/,
exclude: /node_modules/,
use: [
{
loader: "ts-loader",
options: {
configFile: path.resolve(__dirname, "tsconfig.json"),
compilerOptions: {
sourceMap: enableSourceMaps,
},
// If I enable this and use ForkTsCheckerWebpackPlugin below, I don't
// get memory issues anymore when using sourcemaps
//transpileOnly: true,
},
},
],
},
],
},
resolve: {
extensions: [".tsx", ".ts", ".js"],
},
optimization: {
minimizer: [new TerserPlugin()],
},
plugins: [
//new ForkTsCheckerWebpackPlugin(),
new CleanWebpackPlugin(),
new ManifestPlugin(),
],
};
setDevtool(appConfig);
const cssConfig = {
mode: "development",
entry: {
app: "./src/app.less",
},
output: {
path: path.resolve(dist, "css"),
},
module: {
rules: [
{
test: /\.less$/,
use: [
{ loader: MiniCssExtractPlugin.loader },
{ loader: "css-loader" },
{ loader: "less-loader" },
],
},
],
},
optimization: {
minimizer: [
new OptimizeCSSAssetsPlugin({
// enable proper sourcemaps in the
// default CSS processor - cssnano
cssProcessorOptions: enableSourceMaps
? { map: { inline: false, annotation: true } }
: {},
}),
],
},
plugins: [
new CleanWebpackPlugin(),
new ManifestPlugin(),
new MiniCssExtractPlugin(),
],
};
setDevtool(cssConfig);
return [appConfig, cssConfig];
};