Function create_builder

packages/kit/src/core/adapt/builder.js:33–234

({
	config,
	build_data,
	server_metadata,
	route_data,
	prerendered,
	prerender_map,
	log,
	vite_config
})

 * @returns {import('@sveltejs/kit').Builder}
 */
export function create_builder({
	config,
	build_data,
	server_metadata,
	route_data,
	prerendered,
	prerender_map,
	log,
	vite_config
}) {
	/** @type {Map<import('@sveltejs/kit').RouteDefinition, import('types').RouteData>} */
	const lookup = new Map();

	/**
	 * Rather than exposing the internal `RouteData` type, which is subject to change,
	 * we expose a stable type that adapters can use to group/filter routes
	 */
	const routes = route_data.map((route) => {
		const { config, methods, page, api } = /** @type {import('types').ServerMetadataRoute} */ (
			server_metadata.routes.get(route.id)
		);

		/** @type {import('@sveltejs/kit').RouteDefinition} */
		const facade = {
			id: route.id,
			api,
			page,
			segments: get_route_segments(route.id).map((segment) => ({
				dynamic: segment.includes('['),
				rest: segment.includes('[...'),
				content: segment
			})),
			pattern: route.pattern,
			prerender: prerender_map.get(route.id) ?? false,
			methods,
			config
		};

		lookup.set(facade, route);

		return facade;
	});

	return {
		log,
		rimraf,
		mkdirp,
		copy,

		config,
		prerendered,
		routes,

		async compress(directory) {
			if (!existsSync(directory)) {
				return;
			}