merge master -> svelte-3, fix various typescript and webpack oddities

src/api/build.ts

@@ -42,7 +42,6 @@ export async function build({
 	routes = path.resolve(cwd, routes);
 	output = path.resolve(cwd, output);
 	static_files = path.resolve(cwd, static_files);
-	dest = path.resolve(cwd, dest);
 
 	if (legacy && bundler === 'webpack') {
 		throw new Error(`Legacy builds are not supported for projects using webpack`);
@@ -119,10 +118,15 @@ export async function build({
 	let serviceworker_stats;
 
 	if (serviceworker) {
+
+		const client_files = client_result.chunks
+			.filter(chunk => !chunk.file.endsWith('.map')) // SW does not need to cache sourcemap files
+			.map(chunk => `client/${chunk.file}`);
+
 		create_serviceworker_manifest({
 			manifest_data,
 			output,
-			client_files: client_result.chunks.map(chunk => `client/${chunk.file}`),
+			client_files,
 			static_files
 		});
 

src/api/export.ts

@@ -3,6 +3,7 @@ import * as path from 'path';
 import * as sander from 'sander';
 import * as url from 'url';
 import fetch from 'node-fetch';
+import * as yootils from 'yootils';
 import * as ports from 'port-authority';
 import clean_html from './utils/clean_html';
 import minify_html from './utils/minify_html';
@@ -94,7 +95,9 @@ async function _export({
 		const is_html = type === 'text/html';
 
 		if (is_html) {
-			file = file === '' ? 'index.html' : `${file}/index.html`;
+			if (pathname !== '/service-worker-index.html') {
+				file = file === '' ? 'index.html' : `${file}/index.html`;
+			}
 			body = minify_html(body);
 		}
 
@@ -113,7 +116,10 @@ async function _export({
 	});
 
 	async function handle(url: URL) {
-		const pathname = (url.pathname.replace(root.pathname, '') || '/');
+		let pathname = url.pathname;
+		if (pathname !== '/service-worker-index.html') {
+		  pathname = pathname.replace(root.pathname, '') || '/'
+		}
 
 		if (seen.has(pathname)) return;
 		seen.add(pathname);
@@ -138,11 +144,12 @@ async function _export({
 		const range = ~~(r.status / 100);
 
 		if (range === 2) {
-			if (type === 'text/html') {
-				const urls: URL[] = [];
-
+			if (type === 'text/html' && pathname !== '/service-worker-index.html') {
 				const cleaned = clean_html(body);
 
+				const q = yootils.queue(8);
+				let promise;
+
 				const base_match = /<base ([\s\S]+?)>/m.exec(cleaned);
 				const base_href = base_match && get_href(base_match[1]);
 				const base = resolve(url.href, base_href);
@@ -158,12 +165,12 @@ async function _export({
 						const url = resolve(base.href, href);
 
 						if (url.protocol === protocol && url.host === host) {
-							urls.push(url);
+							promise = q.add(() => handle(url));
 						}
 					}
 				}
 
-				await Promise.all(urls.map(handle));
+				await promise;
 			}
 		}
 
@@ -181,6 +188,7 @@ async function _export({
 
 	return ports.wait(port)
 		.then(() => handle(root))
+		.then(() => handle(resolve(root.href, 'service-worker-index.html')))
 		.then(() => proc.kill())
 		.catch(err => {
 			proc.kill();