webpack.config.cjs

// SPDX-FileCopyrightText: 2024 Daniel Vrátil <me@dvratil.cz>
//
// SPDX-License-Identifier: MIT

//@ts-check

'use strict';

const CopyPlugin = require('copy-webpack-plugin');
const TerserPlugin = require("terser-webpack-plugin");
const path = require('path');

//@ts-check
/** @typedef {import('webpack').Configuration} WebpackConfig **/

/** @type WebpackConfig */
const extensionConfig = {
  target: 'node', // VS Code extensions run in a Node.js-context 📖 -> https://webpack.js.org/configuration/node/
	mode: 'none', // this leaves the source code as close as possible to the original (when packaging we set this to 'production')

  entry: {
    extension: './src/extension.ts',
    worker: './src/worker.ts'
  },
  output: {
    // the bundle is stored in the 'dist' folder (check package.json), 📖 -> https://webpack.js.org/configuration/output/
    path: path.resolve(__dirname, 'dist'),
    filename: '[name].js',
    libraryTarget: 'commonjs2'
  },
  externals: {
    vscode: 'commonjs vscode' // the vscode-module is created on-the-fly and must be excluded. Add other modules that cannot be webpack'ed, 📖 -> https://webpack.js.org/configuration/externals/
    // modules added here also need to be added in the .vscodeignore file
  },
  resolve: {
    // support reading TypeScript and JavaScript files, 📖 -> https://github.com/TypeStrong/ts-loader
    extensions: ['.ts', '.js']
  },
  module: {
    noParse: /sql.js/,
    rules: [
      {
        test: /\.ts$/,
        exclude: /node_modules/,
        use: [
          {
            loader: 'ts-loader'
          }
        ]
      },
      {
        test: /\.wasm$/,
        type: 'javascript/auto'
      }
    ]
  },
  devtool: 'nosources-source-map',
  infrastructureLogging: {
    level: "log", // enables logging required for problem matchers
  },
  plugins: [
    new CopyPlugin({
      patterns: [
        { from: 'node_modules/sql.js/dist/sql-wasm.wasm', to: 'sql-wasm.wasm' }
      ]
    })
  ],
  optimization: {
    minimizer: [
      new TerserPlugin({
        terserOptions: {
          mangle: {
            // don't mangle the "initSqlJs" function, otherwise the whole thing breaks and calling
            // it from our code fails with "(0, default.l) is not a function"
            reserved: [ "initSqlJs" ]
          }
        }
      })
    ]
  }
};
module.exports = [ extensionConfig ];