Function applyWebpackOptionsDefaults

lib/config/defaults.js:313–564

(options, compilerIndex)

 * @returns {ResolvedOptions} Resolved options after apply defaults
 */
const applyWebpackOptionsDefaults = (options, compilerIndex) => {
	F(options, "context", () => process.cwd());
	F(options, "target", () =>
		getDefaultTarget(/** @type {string} */ (options.context))
	);

	const { mode, name, target } = options;

	const targetProperties =
		target === false
			? /** @type {false} */ (false)
			: typeof target === "string"
				? getTargetProperties(target, /** @type {Context} */ (options.context))
				: getTargetsProperties(
						/** @type {string[]} */ (target),
						/** @type {Context} */ (options.context)
					);

	const development = mode === "development";
	const production = mode === "production" || !mode;

	if (typeof options.entry !== "function") {
		for (const key of Object.keys(options.entry)) {
			F(
				options.entry[key],
				"import",
				() => /** @type {[string]} */ (["./src"])
			);
		}
	}

	F(
		options,
		"devtool",
		() =>
			/** @type {Devtool} */ (
				development
					? [
							options.experiments.css
								? {
										type: "css",
										use: "source-map"
									}
								: undefined,
							{
								type: "javascript",
								use: "eval"
							}
						].filter(Boolean)
					: false
			)
	);

	D(options, "watch", false);
	D(options, "profile", false);
	D(options, "parallelism", 100);
	D(options, "recordsInputPath", false);
	D(options, "recordsOutputPath", false);