shared.webpack.config.js

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

'use strict';

const path = require('path');
const merge = require('merge-options');
const CopyPlugin = require('copy-webpack-plugin');

module.exports = function withDefaults(/**@type WebpackConfig*/extConfig) {

	let defaultConfig = {
		mode: 'none', // this leaves the source code as close as possible to the original (when packaging we set this to 'production')
		target: 'node', // extensions run in a node context
		node: {
			__dirname: false // leave the __dirname-behaviour intact
		},
		resolve: {
			mainFields: ['module', 'main'],
			extensions: ['.ts', '.js'] // support ts-files and js-files
		},
		module: {
			rules: [{
				test: /\.ts$/,
				exclude: /node_modules/,
				use: [{
					// configure TypeScript loader:
					// * enable sources maps for end-to-end source maps
					loader: 'ts-loader',
					options: {
						compilerOptions: {
							'sourceMap': true,
						}
					}
				}]
			},
			{test: /\.json$/, exclude: /node_modules/, use: ['json-loader']},
			]
		},
		plugins: [
			new CopyPlugin({
				patterns: [
					path.resolve(__dirname, 'tree-sitter.wasm'),
				],
			}),
		],
		externals: {
			'vscode': 'commonjs vscode', // ignored because it doesn't exist
		},
		output: {
			// all output goes into `dist`.
			// packaging depends on that and this must always be like it
			filename: '[name].js',
			path: path.join(extConfig.context, 'out'),
			libraryTarget: 'commonjs',
		},
		// yes, really source maps
		devtool: 'source-map'
	};

	return merge(defaultConfig, extConfig);
};