-> v0.13.1

reinstate ten second interval between heartbeats

.gitignore

@@ -1,18 +1,13 @@
 .DS_Store
 yarn.lock
+yarn-error.log
 node_modules
 cypress/screenshots
 test/app/.sapper
 test/app/app/manifest
 test/app/export
+test/app/build
+sapper
 runtime.js
-runtime.js.map
-cli.js
-cli.js.map
-middleware.js
-middleware.js.map
-core.js
-core.js.map
-webpack/config.js
-webpack/config.js.map
-yarn-error.log
+dist
+!rollup.config.js

CHANGELOG.md

@@ -1,5 +1,120 @@
 # sapper changelog
 
+## 0.13.1
+
+* Reinstate ten-second interval between dev server heartbeats ([#276](https://github.com/sveltejs/sapper/issues/276))
+
+## 0.13.0
+
+* Expose `dev`, `build`, `export` and `find_page` APIs ([#272](https://github.com/sveltejs/sapper/issues/272))
+
+## 0.12.0
+
+* Each app has a single `<App>` component. See the [migration guide](https://sapper.svelte.technology/guide#0-11-to-0-12) for more information ([#157](https://github.com/sveltejs/sapper/issues/157))
+* Process exits with error code 1 if build/export fails ([#208](https://github.com/sveltejs/sapper/issues/208))
+
+## 0.11.1
+
+* Limit routes with leading dots to `.well-known` URIs ([#252](https://github.com/sveltejs/sapper/issues/252))
+* Allow server routes to sit in front of pages ([#236](https://github.com/sveltejs/sapper/pull/236))
+
+## 0.11.0
+
+* Create launcher file ([#240](https://github.com/sveltejs/sapper/issues/240))
+* Only keep necessary parts of webpack stats ([#251](https://github.com/sveltejs/sapper/pull/251))
+* Allow `NODE_ENV` to be overridden when building ([#241](https://github.com/sveltejs/sapper/issues/241))
+
+## 0.10.7
+
+* Allow routes to have a leading `.` ([#243](https://github.com/sveltejs/sapper/pull/243))
+* Only encode necessary characters in routes ([#234](https://github.com/sveltejs/sapper/pull/234))
+* Preserve existing `process.env` when exporting ([#245](https://github.com/sveltejs/sapper/pull/245))
+
+## 0.10.6
+
+* Fix error reporting in `sapper start`
+
+## 0.10.5
+
+* Fix missing service worker ([#231](https://github.com/sveltejs/sapper/pull/231))
+
+## 0.10.4
+
+* Upgrade chokidar, this time with a fix ([#227](https://github.com/sveltejs/sapper/pull/227))
+
+## 0.10.3
+
+* Downgrade chokidar ([#212](https://github.com/sveltejs/sapper/issues/212))
+
+## 0.10.2
+
+* Attach `store` to error pages
+* Fix sorting edge case ([#215](https://github.com/sveltejs/sapper/pull/215))
+
+## 0.10.1
+
+* Fix server-side `fetch` paths ([#207](https://github.com/sveltejs/sapper/pull/207))
+
+## 0.10.0
+
+* Support mounting on a path (this requires `app/template.html` to include `%sapper.base%`) ([#180](https://github.com/sveltejs/sapper/issues/180))
+* Support per-request server-side `Store` with client-side hydration ([#178](https://github.com/sveltejs/sapper/issues/178))
+* Add `this.fetch` to `preload`, with credentials support ([#178](https://github.com/sveltejs/sapper/issues/178))
+* Exclude sourcemaps from preload links and `<script>` block ([#204](https://github.com/sveltejs/sapper/pull/204))
+* Register service worker in `<script>` block
+
+
+## 0.9.6
+
+* Whoops — `tslib` is a runtime dependency
+
+## 0.9.5
+
+* Stringify clorox output ([#197](https://github.com/sveltejs/sapper/pull/197))
+
+## 0.9.4
+
+* Add `SAPPER_BASE` and `SAPPER_APP` environment variables ([#181](https://github.com/sveltejs/sapper/issues/181))
+* Minify template in `sapper build` ([#15](https://github.com/sveltejs/sapper/issues/15))
+* Minify all HTML files in `sapper export` ([#172](https://github.com/sveltejs/sapper/issues/172))
+* Log exported files ([#195](https://github.com/sveltejs/sapper/pull/195))
+* Add `--open`/`-o` flag to `sapper dev` and `sapper start` ([#186](https://github.com/sveltejs/sapper/issues/186))
+
+## 0.9.3
+
+* Fix path to `sapper-dev-client`
+
+## 0.9.2
+
+* Include `dist` files in package
+
+## 0.9.1
+
+* Include `sapper` bin
+
+## 0.9.0
+
+* Use `devalue` instead of `serialize-javascript`, allowing `preload` to return non-POJOs and cyclical/repeated references, but *not* functions ([#112](https://github.com/sveltejs/sapper/issues/112))
+* Kill child process if webpack crashes ([#177](https://github.com/sveltejs/sapper/issues/177))
+* Support HMR on remote devices ([#165](https://github.com/sveltejs/sapper/issues/165))
+* Remove hard-coded port (([#169](https://github.com/sveltejs/sapper/issues/169)))
+* Allow non-JS files, e.g. TypeScript to be used as entry points and server routes ([#57](https://github.com/sveltejs/sapper/issues/57))
+* Faster startup ([#173](https://github.com/sveltejs/sapper/issues/173))
+
+## 0.8.4
+
+* Fix route sorting ([#175](https://github.com/sveltejs/sapper/pull/175))
+
+## 0.8.3
+
+* Automatically select available port, or use `--port` flag for `dev` and `start` ([#169](https://github.com/sveltejs/sapper/issues/169))
+* Show stats after build/export ([#168](https://github.com/sveltejs/sapper/issues/168))
+* Various CLI improvements ([#170](https://github.com/sveltejs/sapper/pull/170))
+
+## 0.8.2
+
+* Rename `preloadRoutes` to `prefetchRoutes` ([#166](https://github.com/sveltejs/sapper/issues/166))
+
 ## 0.8.1
 
 * Add `sapper start` command, for running an app built with `sapper build` ([#163](https://github.com/sveltejs/sapper/issues/163))

api.js

@@ -0,0 +1 @@
+module.exports = require('./dist/api.ts.js');

package.json

@@ -1,72 +1,67 @@
 {
   "name": "sapper",
-  "version": "0.8.1",
+  "version": "0.13.1",
   "description": "Military-grade apps, engineered by Svelte",
-  "main": "middleware.js",
+  "main": "dist/middleware.ts.js",
   "bin": {
-    "sapper": "cli.js"
+    "sapper": "./sapper"
   },
   "files": [
-    "cli.js",
-    "core.js",
-    "middleware.js",
+    "*.js",
+    "*.ts.js",
     "runtime",
-    "runtime.js",
-    "sapper-dev-client.js",
-    "webpack"
+    "webpack",
+    "sapper",
+    "dist"
   ],
   "directories": {
     "test": "test"
   },
   "dependencies": {
-    "chalk": "^2.3.0",
+    "ansi-colors": "^2.0.1",
     "cheerio": "^1.0.0-rc.2",
-    "chokidar": "^1.7.0",
-    "code-frame": "^5.0.0",
-    "escape-html": "^1.0.3",
-    "express": "^4.16.2",
-    "get-port": "^3.2.0",
+    "chokidar": "^2.0.3",
+    "cookie": "^0.3.1",
+    "devalue": "^1.0.1",
     "glob": "^7.1.2",
-    "locate-character": "^2.0.5",
+    "html-minifier": "^3.5.16",
     "mkdirp": "^0.5.1",
-    "mri": "^1.1.0",
-    "node-fetch": "^1.7.3",
+    "node-fetch": "^2.1.1",
+    "port-authority": "^1.0.2",
+    "pretty-bytes": "^5.0.0",
     "pretty-ms": "^3.1.0",
-    "relative": "^3.0.2",
     "require-relative": "^0.8.7",
     "rimraf": "^2.6.2",
+    "sade": "^1.4.1",
     "sander": "^0.6.0",
-    "serialize-javascript": "^1.4.0",
-    "source-map-support": "^0.5.3",
-    "tslib": "^1.8.1",
+    "source-map-support": "^0.5.6",
+    "tslib": "^1.9.1",
     "url-parse": "^1.2.0",
-    "walk-sync": "^0.3.2",
-    "webpack-format-messages": "^1.0.1"
+    "webpack-format-messages": "^2.0.1"
   },
   "devDependencies": {
-    "@std/esm": "^0.19.7",
     "@types/glob": "^5.0.34",
     "@types/mkdirp": "^0.5.2",
     "@types/rimraf": "^2.0.2",
     "compression": "^1.7.1",
-    "css-loader": "^0.28.7",
-    "electron": "^1.8.2",
     "eslint": "^4.13.1",
-    "eslint-plugin-import": "^2.8.0",
-    "mocha": "^4.0.1",
-    "nightmare": "^2.10.0",
-    "npm-run-all": "^4.1.2",
-    "rollup": "^0.53.0",
-    "rollup-plugin-commonjs": "^8.3.0",
-    "rollup-plugin-json": "^2.3.0",
+    "eslint-plugin-import": "^2.12.0",
+    "express": "^4.16.3",
+    "mocha": "^5.2.0",
+    "nightmare": "^3.0.0",
+    "npm-run-all": "^4.1.3",
+    "polka": "^0.4.0",
+    "rollup": "^0.59.2",
+    "rollup-plugin-commonjs": "^9.1.3",
+    "rollup-plugin-json": "^3.0.0",
     "rollup-plugin-string": "^2.0.2",
     "rollup-plugin-typescript": "^0.8.1",
-    "style-loader": "^0.19.1",
-    "svelte": "^1.49.1",
-    "svelte-loader": "^2.3.2",
-    "ts-node": "^4.1.0",
-    "typescript": "^2.6.2",
-    "webpack": "^4.1.0"
+    "serve-static": "^1.13.2",
+    "svelte": "^2.6.3",
+    "svelte-loader": "^2.9.0",
+    "typescript": "^2.8.3",
+    "walk-sync": "^0.3.2",
+    "webpack": "^4.8.3"
   },
   "scripts": {
     "cy:open": "cypress open",

rollup.config.js

@@ -10,36 +10,45 @@ const external = [].concat(
 	'sapper/core.js'
 );
 
-const paths = {
-	'sapper/core.js': './core.js'
-};
-
-const plugins = [
-	string({
-		include: '**/*.md'
-	}),
-	json(),
-	commonjs(),
-	typescript({
-		typescript: require('typescript')
-	})
-];
-
 export default [
-	{ name: 'cli', banner: true },
-	{ name: 'core' },
-	{ name: 'middleware' },
-	{ name: 'runtime', format: 'es' },
-	{ name: 'webpack', file: 'webpack/config' }
-].map(obj => ({
-	input: `src/${obj.name}/index.ts`,
-	output: {
-		file: `${obj.file || obj.name}.js`,
-		format: obj.format || 'cjs',
-		banner: obj.banner && '#!/usr/bin/env node',
-		paths,
-		sourcemap: true
+	{
+		input: `src/runtime/index.ts`,
+		output: {
+			file: `runtime.js`,
+			format: 'es'
+		},
+		plugins: [
+			typescript({
+				typescript: require('typescript')
+			})
+		]
 	},
-	external,
-	plugins
-}));
+
+	{
+		input: [
+			`src/api.ts`,
+			`src/cli.ts`,
+			`src/core.ts`,
+			`src/middleware.ts`,
+			`src/webpack.ts`
+		],
+		output: {
+			dir: 'dist',
+			format: 'cjs',
+			sourcemap: true
+		},
+		external,
+		plugins: [
+			string({
+				include: '**/*.md'
+			}),
+			json(),
+			commonjs(),
+			typescript({
+				typescript: require('typescript')
+			})
+		],
+		experimentalCodeSplitting: true,
+		experimentalDynamicImport: true
+	}
+];

sapper

@@ -0,0 +1,2 @@
+#!/usr/bin/env node
+require('./dist/cli.ts.js');

sapper-dev-client.js

@@ -11,7 +11,7 @@ function check() {
 export function connect(port) {
 	if (source || !window.EventSource) return;
 
-	source = new EventSource(`http://localhost:${port}/__sapper__`);
+	source = new EventSource(`http://${window.location.hostname}:${port}/__sapper__`);
 
 	window.source = source;
 

src/api.ts

@@ -0,0 +1,6 @@
+import { dev } from './api/dev';
+import { build } from './api/build';
+import { exporter } from './api/export';
+import { find_page } from './api/find_page';
+
+export { dev, build, exporter, find_page };

src/api/build.ts

@@ -0,0 +1,111 @@
+import * as fs from 'fs';
+import * as path from 'path';
+import mkdirp from 'mkdirp';
+import rimraf from 'rimraf';
+import { EventEmitter } from 'events';
+import { minify_html } from './utils/minify_html';
+import { create_compilers, create_main_manifests, create_routes, create_serviceworker_manifest } from '../core'
+import { locations } from '../config';
+import * as events from './interfaces';
+
+export function build(opts: {}) {
+	const emitter = new EventEmitter();
+
+	execute(emitter, opts).then(
+		() => {
+			emitter.emit('done', <events.DoneEvent>{}); // TODO do we need to pass back any info?
+		},
+		error => {
+			emitter.emit('error', <events.ErrorEvent>{
+				error
+			});
+		}
+	);
+
+	return emitter;
+}
+
+async function execute(emitter: EventEmitter, {
+	dest = 'build',
+	app = 'app',
+	webpack = 'webpack',
+	routes = 'routes'
+} = {}) {
+	mkdirp.sync(dest);
+	rimraf.sync(path.join(dest, '**/*'));
+
+	// minify app/template.html
+	// TODO compile this to a function? could be quicker than str.replace(...).replace(...).replace(...)
+	const template = fs.readFileSync(`${app}/template.html`, 'utf-8');
+
+	// remove this in a future version
+	if (template.indexOf('%sapper.base%') === -1) {
+		const error = new Error(`As of Sapper v0.10, your template.html file must include %sapper.base% in the <head>`);
+		error.code = `missing-sapper-base`;
+		throw error;
+	}
+
+	fs.writeFileSync(`${dest}/template.html`, minify_html(template));
+
+	const route_objects = create_routes();
+
+	// create app/manifest/client.js and app/manifest/server.js
+	create_main_manifests({ routes: route_objects });
+
+	const { client, server, serviceworker } = create_compilers({ webpack });
+
+	const client_stats = await compile(client);
+	emitter.emit('build', <events.BuildEvent>{
+		type: 'client',
+		// TODO duration/warnings
+		webpack_stats: client_stats
+	});
+
+	const client_info = client_stats.toJson();
+	fs.writeFileSync(path.join(dest, 'client_info.json'), JSON.stringify(client_info));
+	fs.writeFileSync(path.join(dest, 'client_assets.json'), JSON.stringify(client_info.assetsByChunkName));
+
+	const server_stats = await compile(server);
+	emitter.emit('build', <events.BuildEvent>{
+		type: 'server',
+		// TODO duration/warnings
+		webpack_stats: server_stats
+	});
+
+	let serviceworker_stats;
+
+	if (serviceworker) {
+		create_serviceworker_manifest({
+			routes: route_objects,
+			client_files: client_stats.toJson().assets.map((chunk: { name: string }) => `client/${chunk.name}`)
+		});
+
+		serviceworker_stats = await compile(serviceworker);
+
+		emitter.emit('build', <events.BuildEvent>{
+			type: 'serviceworker',
+			// TODO duration/warnings
+			webpack_stats: serviceworker_stats
+		});
+	}
+}
+
+function compile(compiler: any) {
+	return new Promise((fulfil, reject) => {
+		compiler.run((err: Error, stats: any) => {
+			if (err) {
+				reject(err);
+				process.exit(1);
+			}
+
+			if (stats.hasErrors()) {
+				console.error(stats.toString({ colors: true }));
+				reject(new Error(`Encountered errors while building app`));
+			}
+
+			else {
+				fulfil(stats);
+			}
+		});
+	});
+}

src/api/dev.ts

@@ -0,0 +1,426 @@
+import * as path from 'path';
+import * as fs from 'fs';
+import * as http from 'http';
+import * as child_process from 'child_process';
+import * as ports from 'port-authority';
+import mkdirp from 'mkdirp';
+import rimraf from 'rimraf';
+import format_messages from 'webpack-format-messages';
+import prettyMs from 'pretty-ms';
+import { locations } from '../config';
+import { EventEmitter } from 'events';
+import { create_routes, create_main_manifests, create_compilers, create_serviceworker_manifest } from '../core';
+import * as events from './interfaces';
+
+export function dev(opts) {
+	return new Watcher(opts);
+}
+
+class Watcher extends EventEmitter {
+	dirs: {
+		app: string;
+		dest: string;
+		routes: string;
+		webpack: string;
+	}
+	port: number;
+	closed: boolean;
+
+	dev_server: DevServer;
+	proc: child_process.ChildProcess;
+	filewatchers: Array<{ close: () => void }>;
+	deferreds: {
+		client: Deferred;
+		server: Deferred;
+	};
+
+	restarting: boolean;
+	current_build: {
+		changed: Set<string>;
+		rebuilding: Set<string>;
+		unique_warnings: Set<string>;
+		unique_errors: Set<string>;
+	}
+
+	constructor({
+		app = locations.app(),
+		dest = locations.dest(),
+		routes = locations.routes(),
+		webpack = 'webpack',
+		port = +process.env.PORT
+	}: {
+		app: string,
+		dest: string,
+		routes: string,
+		webpack: string,
+		port: number
+	}) {
+		super();
+
+		this.dirs = { app, dest, routes, webpack };
+		this.port = port;
+		this.closed = false;
+
+		this.filewatchers = [];
+
+		this.current_build = {
+			changed: new Set(),
+			rebuilding: new Set(),
+			unique_errors: new Set(),
+			unique_warnings: new Set()
+		};
+
+		// remove this in a future version
+		const template = fs.readFileSync(path.join(app, 'template.html'), 'utf-8');
+		if (template.indexOf('%sapper.base%') === -1) {
+			const error = new Error(`As of Sapper v0.10, your template.html file must include %sapper.base% in the <head>`);
+			error.code = `missing-sapper-base`;
+			throw error;
+		}
+
+		process.env.NODE_ENV = 'development';
+
+		process.on('exit', () => {
+			this.close();
+		});
+
+		this.init();
+	}
+
+	async init() {
+		if (this.port) {
+			if (!await ports.check(this.port)) {
+				this.emit('fatal', <events.FatalEvent>{
+					error: new Error(`Port ${this.port} is unavailable`)
+				});
+				return;
+			}
+		} else {
+			this.port = await ports.find(3000);
+		}
+
+		const { dest } = this.dirs;
+		rimraf.sync(dest);
+		mkdirp.sync(dest);
+
+		const dev_port = await ports.find(10000);
+
+		const routes = create_routes();
+		create_main_manifests({ routes, dev_port });
+
+		this.dev_server = new DevServer(dev_port);
+
+		this.filewatchers.push(
+			watch_files(locations.routes(), ['add', 'unlink'], () => {
+				const routes = create_routes();
+				create_main_manifests({ routes, dev_port });
+			}),
+
+			watch_files(`${locations.app()}/template.html`, ['change'], () => {
+				this.dev_server.send({
+					action: 'reload'
+				});
+			})
+		);
+
+		this.deferreds = {
+			server: new Deferred(),
+			client: new Deferred()
+		};
+
+		// TODO watch the configs themselves?
+		const compilers = create_compilers({ webpack: this.dirs.webpack });
+
+		this.watch(compilers.server, {
+			name: 'server',
+
+			invalid: filename => {
+				this.restart(filename, 'server');
+				this.deferreds.server = new Deferred();
+			},
+
+			result: info => {
+				fs.writeFileSync(path.join(dest, 'server_info.json'), JSON.stringify(info, null, '  '));
+
+				this.deferreds.client.promise.then(() => {
+					this.dev_server.send({
+						status: 'completed'
+					});
+
+					const restart = () => {
+						ports.wait(this.port).then((() => {
+							this.emit('ready', <events.ReadyEvent>{
+								port: this.port,
+								process: this.proc
+							});
+
+							this.deferreds.server.fulfil();
+						}));
+					};
+
+					if (this.proc) {
+						this.proc.kill();
+						this.proc.on('exit', restart);
+					} else {
+						restart();
+					}
+
+					this.proc = child_process.fork(`${dest}/server.js`, [], {
+						cwd: process.cwd(),
+						env: Object.assign({
+							PORT: this.port
+						}, process.env),
+						stdio: ['ipc']
+					});
+				});
+			}
+		});
+
+		let first = true;
+
+		this.watch(compilers.client, {
+			name: 'client',
+
+			invalid: filename => {
+				this.restart(filename, 'client');
+				this.deferreds.client = new Deferred();
+
+				// TODO we should delete old assets. due to a webpack bug
+				// i don't even begin to comprehend, this is apparently
+				// quite difficult
+			},
+
+			result: info => {
+				fs.writeFileSync(path.join(dest, 'client_info.json'), JSON.stringify(info));
+				fs.writeFileSync(path.join(dest, 'client_assets.json'), JSON.stringify(info.assetsByChunkName, null, '  '));
+				this.deferreds.client.fulfil();
+
+				const client_files = info.assets.map((chunk: { name: string }) => `client/${chunk.name}`);
+
+				create_serviceworker_manifest({
+					routes: create_routes(),
+					client_files
+				});
+
+				// we need to wait a beat before watching the service
+				// worker, because of some webpack nonsense
+				setTimeout(watch_serviceworker, 100);
+			}
+		});
+
+		let watch_serviceworker = compilers.serviceworker
+			? () => {
+				watch_serviceworker = noop;
+
+				this.watch(compilers.serviceworker, {
+					name: 'service worker',
+
+					result: info => {
+						fs.writeFileSync(path.join(dest, 'serviceworker_info.json'), JSON.stringify(info, null, '  '));
+					}
+				});
+			}
+			: noop;
+	}
+
+	close() {
+		if (this.closed) return;
+		this.closed = true;
+
+		this.dev_server.close();
+
+		if (this.proc) this.proc.kill();
+		this.filewatchers.forEach(watcher => {
+			watcher.close();
+		});
+	}
+
+	restart(filename: string, type: string) {
+		if (this.restarting) {
+			this.current_build.changed.add(filename);
+			this.current_build.rebuilding.add(type);
+		} else {
+			this.restarting = true;
+
+			this.current_build = {
+				changed: new Set(),
+				rebuilding: new Set(),
+				unique_warnings: new Set(),
+				unique_errors: new Set()
+			};
+
+			process.nextTick(() => {
+				this.emit('invalid', <events.InvalidEvent>{
+					changed: Array.from(this.current_build.changed),
+					invalid: {
+						server: this.current_build.rebuilding.has('server'),
+						client: this.current_build.rebuilding.has('client'),
+						serviceworker: this.current_build.rebuilding.has('serviceworker'),
+					}
+				});
+
+				this.restarting = false;
+			});
+		}
+	}
+
+	watch(compiler: any, { name, invalid = noop, result }: {
+		name: string,
+		invalid?: (filename: string) => void;
+		result: (stats: any) => void;
+	}) {
+		compiler.hooks.invalid.tap('sapper', (filename: string) => {
+			invalid(filename);
+		});
+
+		compiler.watch({}, (err: Error, stats: any) => {
+			if (err) {
+				this.emit('error', <events.ErrorEvent>{
+					type: name,
+					error: err
+				});
+			} else {
+				const messages = format_messages(stats);
+				const info = stats.toJson();
+
+				this.emit('build', {
+					type: name,
+
+					duration: info.time,
+
+					errors: messages.errors.map((message: string) => {
+						const duplicate = this.current_build.unique_errors.has(message);
+						this.current_build.unique_errors.add(message);
+
+						return mungeWebpackError(message, duplicate);
+					}),
+
+					warnings: messages.warnings.map((message: string) => {
+						const duplicate = this.current_build.unique_warnings.has(message);
+						this.current_build.unique_warnings.add(message);
+
+						return mungeWebpackError(message, duplicate);
+					}),
+				});
+
+				result(info);
+			}
+		});
+	}
+}
+
+const locPattern = /\((\d+):(\d+)\)$/;
+
+function mungeWebpackError(message: string, duplicate: boolean) {
+	// TODO this is all a bit rube goldberg...
+	const lines = message.split('\n');
+
+	const file = lines.shift()
+		.replace('', '') // careful — there is a special character at the beginning of this string
+		.replace('', '')
+		.replace('./', '');
+
+	let line = null;
+	let column = null;
+
+	const match = locPattern.exec(lines[0]);
+	if (match) {
+		lines[0] = lines[0].replace(locPattern, '');
+		line = +match[1];
+		column = +match[2];
+	}
+
+	return {
+		file,
+		line,
+		column,
+		message: lines.join('\n'),
+		originalMessage: message,
+		duplicate
+	};
+}
+
+class Deferred {
+	promise: Promise<any>;
+	fulfil: (value?: any) => void;
+	reject: (error: Error) => void;
+
+	constructor() {
+		this.promise = new Promise((fulfil, reject) => {
+			this.fulfil = fulfil;
+			this.reject = reject;
+		});
+	}
+}
+
+const INTERVAL = 10000;
+
+class DevServer {
+	clients: Set<http.ServerResponse>;
+	interval: NodeJS.Timer;
+	_: http.Server;
+
+	constructor(port: number, interval = 10000) {
+		this.clients = new Set();
+
+		this._ = http.createServer((req, res) => {
+			if (req.url !== '/__sapper__') return;
+
+			req.socket.setKeepAlive(true);
+			res.writeHead(200, {
+				'Access-Control-Allow-Origin': '*',
+				'Access-Control-Allow-Headers': 'Cache-Control',
+				'Content-Type': 'text/event-stream;charset=utf-8',
+				'Cache-Control': 'no-cache, no-transform',
+				'Connection': 'keep-alive',
+				// While behind nginx, event stream should not be buffered:
+				// http://nginx.org/docs/http/ngx_http_proxy_module.html#proxy_buffering
+				'X-Accel-Buffering': 'no'
+			});
+
+			res.write('\n');
+
+			this.clients.add(res);
+			req.on('close', () => {
+				this.clients.delete(res);
+			});
+		});
+
+		this._.listen(port);
+
+		this.interval = setInterval(() => {
+			this.send(null);
+		}, INTERVAL);
+	}
+
+	close() {
+		this._.close();
+		clearInterval(this.interval);
+	}
+
+	send(data: any) {
+		this.clients.forEach(client => {
+			client.write(`data: ${JSON.stringify(data)}\n\n`);
+		});
+	}
+}
+
+function noop() {}
+
+function watch_files(pattern: string, events: string[], callback: () => void) {
+	const chokidar = require('chokidar');
+
+	const watcher = chokidar.watch(pattern, {
+		persistent: true,
+		ignoreInitial: true,
+		disableGlobbing: true
+	});
+
+	events.forEach(event => {
+		watcher.on(event, callback);
+	});
+
+	return {
+		close: () => watcher.close()
+	};
+}

src/api/export.ts

@@ -0,0 +1,131 @@
+import * as child_process from 'child_process';
+import * as path from 'path';
+import * as sander from 'sander';
+import cheerio from 'cheerio';
+import URL from 'url-parse';
+import fetch from 'node-fetch';
+import * as ports from 'port-authority';
+import { EventEmitter } from 'events';
+import { minify_html } from './utils/minify_html';
+import { locations } from '../config';
+import * as events from './interfaces';
+
+export function exporter(opts: {}) {
+	const emitter = new EventEmitter();
+
+	execute(emitter, opts).then(
+		() => {
+			emitter.emit('done', <events.DoneEvent>{}); // TODO do we need to pass back any info?
+		},
+		error => {
+			emitter.emit('error', <events.ErrorEvent>{
+				error
+			});
+		}
+	);
+
+	return emitter;
+}
+
+async function execute(emitter: EventEmitter, {
+	build = 'build',
+	dest = 'export',
+	basepath = ''
+} = {}) {
+	const export_dir = path.join(dest, basepath);
+
+	// Prep output directory
+	sander.rimrafSync(export_dir);
+
+	sander.copydirSync('assets').to(export_dir);
+	sander.copydirSync(build, 'client').to(export_dir, 'client');
+
+	if (sander.existsSync(build, 'service-worker.js')) {
+		sander.copyFileSync(build, 'service-worker.js').to(export_dir, 'service-worker.js');
+	}
+
+	if (sander.existsSync(build, 'service-worker.js.map')) {
+		sander.copyFileSync(build, 'service-worker.js.map').to(export_dir, 'service-worker.js.map');
+	}
+
+	const port = await ports.find(3000);
+
+	const origin = `http://localhost:${port}`;
+
+	const proc = child_process.fork(path.resolve(`${build}/server.js`), [], {
+		cwd: process.cwd(),
+		env: Object.assign({
+			PORT: port,
+			NODE_ENV: 'production',
+			SAPPER_DEST: build,
+			SAPPER_EXPORT: 'true'
+		}, process.env)
+	});
+
+	const seen = new Set();
+	const saved = new Set();
+
+	proc.on('message', message => {
+		if (!message.__sapper__) return;
+
+		let file = new URL(message.url, origin).pathname.slice(1);
+		let { body } = message;
+
+		if (saved.has(file)) return;
+		saved.add(file);
+
+		const is_html = message.type === 'text/html';
+
+		if (is_html) {
+			file = file === '' ? 'index.html' : `${file}/index.html`;
+			body = minify_html(body);
+		}
+
+		emitter.emit('file', <events.FileEvent>{
+			file,
+			size: body.length
+		});
+
+		sander.writeFileSync(export_dir, file, body);
+	});
+
+	async function handle(url: URL) {
+		const r = await fetch(url.href);
+		const range = ~~(r.status / 100);
+
+		if (range >= 4) {
+			emitter.emit('failure', <events.FailureEvent>{
+				status: r.status,
+				pathname: url.pathname
+			});
+			return;
+		}
+
+		if (range === 2) {
+			if (r.headers.get('Content-Type') === 'text/html') {
+				const body = await r.text();
+				const $ = cheerio.load(body);
+				const urls: URL[] = [];
+
+				const base = new URL($('base').attr('href') || '/', url.href);
+
+				$('a[href]').each((i: number, $a) => {
+					const url = new URL($a.attribs.href, base.href);
+
+					if (url.origin === origin && !seen.has(url.pathname)) {
+						seen.add(url.pathname);
+						urls.push(url);
+					}
+				});
+
+				for (const url of urls) {
+					await handle(url);
+				}
+			}
+		}
+	}
+
+	return ports.wait(port)
+		.then(() => handle(new URL(`/${basepath}`, origin))) // TODO all static routes
+		.then(() => proc.kill());
+}

src/api/find_page.ts

@@ -0,0 +1,16 @@
+import * as glob from 'glob';
+import { locations } from '../config';
+import { create_routes } from '../core';
+
+export function find_page(pathname: string, files: string[] = glob.sync('**/*.*', { cwd: locations.routes(), dot: true, nodir: true })) {
+	const routes = create_routes({ files });
+
+	for (let i = 0; i < routes.length; i += 1) {
+		const route = routes[i];
+
+		if (route.pattern.test(pathname)) {
+			const page = route.handlers.find(handler => handler.type === 'page');
+			if (page) return page.file;
+		}
+	}
+}

src/api/interfaces.ts

@@ -0,0 +1,43 @@
+import * as child_process from 'child_process';
+
+export type ReadyEvent = {
+	port: number;
+	process: child_process.ChildProcess;
+};
+
+export type ErrorEvent = {
+	type: string;
+	error: Error;
+};
+
+export type FatalEvent = {
+	error: Error;
+};
+
+export type InvalidEvent = {
+	changed: string[];
+	invalid: {
+		client: boolean;
+		server: boolean;
+		serviceworker: boolean;
+	}
+};
+
+export type BuildEvent = {
+	type: string;
+	errors: Array<{ message: string, duplicate: boolean }>;
+	warnings: Array<{ message: string, duplicate: boolean }>;
+	duration: number;
+	webpack_stats: any;
+}
+
+export type FileEvent = {
+	file: string;
+	size: number;
+}
+
+export type FailureEvent = {
+
+}
+
+export type DoneEvent = {}

src/api/utils/minify_html.ts

@@ -0,0 +1,21 @@
+import { minify } from 'html-minifier';
+
+export function minify_html(html: string) {
+	return minify(html, {
+		collapseBooleanAttributes: true,
+		collapseWhitespace: true,
+		conservativeCollapse: true,
+		decodeEntities: true,
+		html5: true,
+		minifyCSS: true,
+		minifyJS: true,
+		removeAttributeQuotes: true,
+		removeComments: true,
+		removeOptionalTags: true,
+		removeRedundantAttributes: true,
+		removeScriptTypeAttributes: true,
+		removeStyleLinkTypeAttributes: true,
+		sortAttributes: true,
+		sortClassName: true
+	});
+}

src/cli.ts

@@ -0,0 +1,97 @@
+import * as fs from 'fs';
+import * as path from 'path';
+import * as child_process from 'child_process';
+import sade from 'sade';
+import * as colors from 'ansi-colors';
+import prettyMs from 'pretty-ms';
+// import upgrade from './cli/upgrade';
+import * as ports from 'port-authority';
+import * as pkg from '../package.json';
+
+const prog = sade('sapper').version(pkg.version);
+
+prog.command('dev')
+	.describe('Start a development server')
+	.option('-p, --port', 'Specify a port')
+	.option('-o, --open', 'Open a browser window')
+	.action(async (opts: { port: number, open: boolean }) => {
+		const { dev } = await import('./cli/dev');
+		dev(opts);
+	});
+
+prog.command('build [dest]')
+	.describe('Create a production-ready version of your app')
+	.option('-p, --port', 'Default of process.env.PORT', '3000')
+	.example(`build custom-dir -p 4567`)
+	.action(async (dest = 'build', opts: { port: string }) => {
+		console.log(`> Building...`);
+
+		process.env.NODE_ENV = process.env.NODE_ENV || 'production';
+		process.env.SAPPER_DEST = dest;
+
+		const start = Date.now();
+
+		try {
+			const { build } = await import('./cli/build');
+			await build();
+
+			const launcher = path.resolve(dest, 'index.js');
+
+			fs.writeFileSync(launcher, `
+				// generated by sapper build at ${new Date().toISOString()}
+				process.env.NODE_ENV = process.env.NODE_ENV || 'production';
+				process.env.SAPPER_DEST = __dirname;
+				process.env.PORT = process.env.PORT || ${opts.port || 3000};
+
+				console.log('Starting server on port ' + process.env.PORT);
+				require('./server.js');
+			`.replace(/^\t+/gm, '').trim());
+
+			console.error(`\n> Finished in ${elapsed(start)}. Type ${colors.bold.cyan(`node ${dest}`)} to run the app.`);
+		} catch (err) {
+			console.error(err ? err.details || err.stack || err.message || err : 'Unknown error');
+			process.exit(1);
+		}
+	});
+
+prog.command('start [dir]')
+	.describe('Start your app')
+	.option('-p, --port', 'Specify a port')
+	.option('-o, --open', 'Open a browser window')
+	.action(async (dir = 'build', opts: { port: number, open: boolean }) => {
+		const { start } = await import('./cli/start');
+		start(dir, opts);
+	});
+
+prog.command('export [dest]')
+	.describe('Export your app as static files (if possible)')
+	.option('--basepath', 'Specify a base path')
+	.action(async (dest = 'export', opts: { basepath?: string }) => {
+		console.log(`> Building...`);
+
+		process.env.NODE_ENV = 'production';
+		process.env.SAPPER_DEST = '.sapper/.export';
+
+		const start = Date.now();
+
+		try {
+			const { build } = await import('./cli/build');
+			await build();
+			console.error(`\n> Built in ${elapsed(start)}. Crawling site...`);
+
+			const { exporter } = await import('./cli/export');
+			await exporter(dest, opts);
+			console.error(`\n> Finished in ${elapsed(start)}. Type ${colors.bold.cyan(`npx serve ${dest}`)} to run the app.`);
+		} catch (err) {
+			console.error(err ? err.details || err.stack || err.message || err : 'Unknown error');
+			process.exit(1);
+		}
+	});
+
+// TODO upgrade
+
+prog.parse(process.argv);
+
+function elapsed(start: number) {
+	return prettyMs(Date.now() - start);
+}

src/cli/build.ts

@@ -1,55 +1,32 @@
-import * as fs from 'fs';
-import * as path from 'path';
-import mkdirp from 'mkdirp';
-import rimraf from 'rimraf';
-import { create_compilers, create_app, create_routes, create_serviceworker } from 'sapper/core.js'
-import { src, dest, dev } from '../config';
+import { build as _build } from '../api/build';
+import * as colors from 'ansi-colors';
+import { locations } from '../config';
 
-export default async function build() {
-	const output = dest();
-
-	mkdirp.sync(output);
-	rimraf.sync(path.join(output, '**/*'));
-
-	const routes = create_routes();
-
-	// create app/manifest/client.js and app/manifest/server.js
-	create_app({ routes, src, dev });
-
-	const { client, server, serviceworker } = create_compilers();
-
-	const client_stats = await compile(client);
-	fs.writeFileSync(path.join(output, 'client_info.json'), JSON.stringify(client_stats.toJson()));
-
-	await compile(server);
-
-	if (serviceworker) {
-		create_serviceworker({
-			routes,
-			client_files: client_stats.toJson().assets.map((chunk: { name: string }) => `/client/${chunk.name}`),
-			src
-		});
-
-		await compile(serviceworker);
-	}
-}
-
-function compile(compiler: any) {
+export function build() {
 	return new Promise((fulfil, reject) => {
-		compiler.run((err: Error, stats: any) => {
-			if (err) {
-				reject(err);
-				process.exit(1);
-			}
+		try {
+			const emitter = _build({
+				dest: locations.dest(),
+				app: locations.app(),
+				routes: locations.routes(),
+				webpack: 'webpack'
+			});
 
-			if (stats.hasErrors()) {
-				console.error(stats.toString({ colors: true }));
-				reject(new Error(`Encountered errors while building app`));
-			}
+			emitter.on('build', event => {
+				console.log(colors.inverse(`\nbuilt ${event.type}`));
+				console.log(event.webpack_stats.toString({ colors: true }));
+			});
 
-			else {
-				fulfil(stats);
-			}
-		});
+			emitter.on('error', event => {
+				reject(event.error);
+			});
+
+			emitter.on('done', event => {
+				fulfil();
+			});
+		} catch (err) {
+			console.log(`${colors.bold.red(`> ${err.message}`)}`);
+			process.exit(1);
+		}
 	});
 }

src/cli/dev.ts

@@ -1,288 +1,77 @@
-import * as fs from 'fs';
 import * as path from 'path';
-import * as net from 'net';
-import * as chalk from 'chalk';
+import * as colors from 'ansi-colors';
 import * as child_process from 'child_process';
-import * as http from 'http';
-import mkdirp from 'mkdirp';
-import rimraf from 'rimraf';
-import format_messages from 'webpack-format-messages';
 import prettyMs from 'pretty-ms';
-import { wait_for_port } from './utils';
-import { dest } from '../config';
-import { create_compilers, create_app, create_routes, create_serviceworker } from 'sapper/core.js';
+import { dev as _dev } from '../api/dev';
+import * as events from '../api/interfaces';
 
-type Deferred = {
-	promise?: Promise<any>;
-	fulfil?: (value?: any) => void;
-	reject?: (err: Error) => void;
-}
+export function dev(opts: { port: number, open: boolean }) {
+	try {
+		const watcher = _dev(opts);
 
-function deferred() {
-	const d: Deferred = {};
+		let first = true;
 
-	d.promise = new Promise((fulfil, reject) => {
-		d.fulfil = fulfil;
-		d.reject = reject;
-	});
+		watcher.on('ready', (event: events.ReadyEvent) => {
+			if (first) {
+				console.log(`${colors.bold.cyan(`> Listening on http://localhost:${event.port}`)}`);
+				if (opts.open) child_process.exec(`open http://localhost:${event.port}`);
+				first = false;
+			}
 
-	return d;
-}
+			// TODO clear screen?
 
-function create_hot_update_server(port: number, interval = 10000) {
-	const clients = new Set();
+			event.process.stdout.on('data', data => {
+				process.stdout.write(data);
+			});
 
-	const server = http.createServer((req, res) => {
-		if (req.url !== '/__sapper__') return;
-
-		req.socket.setKeepAlive(true);
-		res.writeHead(200, {
-			'Access-Control-Allow-Origin': '*',
-			'Access-Control-Allow-Headers': 'Cache-Control',
-			'Content-Type': 'text/event-stream;charset=utf-8',
-			'Cache-Control': 'no-cache, no-transform',
-			'Connection': 'keep-alive',
-			// While behind nginx, event stream should not be buffered:
-			// http://nginx.org/docs/http/ngx_http_proxy_module.html#proxy_buffering
-			'X-Accel-Buffering': 'no'
+			event.process.stderr.on('data', data => {
+				process.stderr.write(data);
+			});
 		});
 
-		res.write('\n');
-
-		clients.add(res);
-		req.on('close', () => {
-			clients.delete(res);
-		});
-	});
-
-	server.listen(port);
-
-	function send(data: any) {
-		clients.forEach(client => {
-			client.write(`data: ${JSON.stringify(data)}\n\n`);
-		});
-	}
-
-	setInterval(() => {
-		send(null)
-	}, interval);
-
-	return { send };
-}
-
-export default async function dev() {
-	process.env.NODE_ENV = 'development';
-
-	const dir = dest();
-	rimraf.sync(dir);
-	mkdirp.sync(dir);
-
-	// initial build
-	const dev_port = await require('get-port')(10000);
-
-	const routes = create_routes();
-	create_app({ routes, dev_port });
-
-	const hot_update_server = create_hot_update_server(dev_port);
-
-	watch_files('routes/**/*', ['add', 'unlink'], () => {
-		const routes = create_routes();
-		create_app({ routes, dev_port });
-	});
-
-	watch_files('app/template.html', ['change'], () => {
-		hot_update_server.send({
-			action: 'reload'
-		});
-	});
-
-	let proc: child_process.ChildProcess;
-
-	const deferreds = {
-		server: deferred(),
-		client: deferred()
-	};
-
-	let restarting = false;
-	let build = {
-		unique_warnings: new Set(),
-		unique_errors: new Set()
-	};
-
-	function restart_build(filename) {
-		if (restarting) return;
-
-		restarting = true;
-		build = {
-			unique_warnings: new Set(),
-			unique_errors: new Set()
-		};
-
-		process.nextTick(() => {
-			restarting = false;
+		watcher.on('invalid', (event: events.InvalidEvent) => {
+			const changed = event.changed.map(filename => path.relative(process.cwd(), filename)).join(', ');
+			console.log(`\n${colors.bold.cyan(changed)} changed. rebuilding...`);
 		});
 
-		console.log(`\n${chalk.bold.cyan(path.relative(process.cwd(), filename))} changed. rebuilding...`);
-	}
-
-	// TODO watch the configs themselves?
-	const compilers = create_compilers();
-
-	function watch(compiler: any, { name, invalid = noop, error = noop, result }: {
-		name: string,
-		invalid?: (filename: string) => void;
-		error?: (error: Error) => void;
-		result: (stats: any) => void;
-	}) {
-		compiler.hooks.invalid.tap('sapper', (filename: string) => {
-			invalid(filename);
+		watcher.on('error', (event: events.ErrorEvent) => {
+			console.log(`${colors.red(`✗ ${event.type}`)}`);
+			console.log(`${colors.red(event.error.message)}`);
 		});
 
-		compiler.watch({}, (err: Error, stats: any) => {
-			if (err) {
-				console.error(chalk.red(`✗ ${name}`));
-				console.error(chalk.red(err.message));
-				error(err);
-			} else {
-				const messages = format_messages(stats);
-				const info = stats.toJson();
+		watcher.on('fatal', (event: events.FatalEvent) => {
+			console.log(`${colors.bold.red(`> ${event.error.message}`)}`);
+		});
 
-				if (messages.errors.length > 0) {
-					console.log(chalk.bold.red(`✗ ${name}`));
+		watcher.on('build', (event: events.BuildEvent) => {
+			if (event.errors.length) {
+				console.log(`${colors.bold.red(`✗ ${event.type}`)}`);
 
-					const filtered = messages.errors.filter((message: string) => {
-						return !build.unique_errors.has(message);
-					});
+				event.errors.filter(e => !e.duplicate).forEach(error => {
+					console.log(error.message);
+				});
 
-					filtered.forEach((message: string) => {
-						build.unique_errors.add(message);
-						console.log(message);
-					});
-
-					const hidden = messages.errors.length - filtered.length;
-					if (hidden > 0) {
-						console.log(`${hidden} duplicate ${hidden === 1 ? 'error' : 'errors'} hidden\n`);
-					}
-				} else {
-					if (messages.warnings.length > 0) {
-						console.log(chalk.bold.yellow(`• ${name}`));
-
-						const filtered = messages.warnings.filter((message: string) => {
-							return !build.unique_warnings.has(message);
-						});
-
-						filtered.forEach((message: string) => {
-							build.unique_warnings.add(message);
-							console.log(`${message}\n`);
-						});
-
-						const hidden = messages.warnings.length - filtered.length;
-						if (hidden > 0) {
-							console.log(`${hidden} duplicate ${hidden === 1 ? 'warning' : 'warnings'} hidden\n`);
-						}
-					} else {
-						console.log(`${chalk.bold.green(`✔ ${name}`)} ${chalk.grey(`(${prettyMs(info.time)})`)}`);
-					}
-
-					result(info);
+				const hidden = event.errors.filter(e => e.duplicate).length;
+				if (hidden > 0) {
+					console.log(`${hidden} duplicate ${hidden === 1 ? 'error' : 'errors'} hidden\n`);
 				}
+			} else if (event.warnings.length) {
+				console.log(`${colors.bold.yellow(`• ${event.type}`)}`);
+
+				event.warnings.filter(e => !e.duplicate).forEach(warning => {
+					console.log(warning.message);
+				});
+
+				const hidden = event.warnings.filter(e => e.duplicate).length;
+				if (hidden > 0) {
+					console.log(`${hidden} duplicate ${hidden === 1 ? 'warning' : 'warnings'} hidden\n`);
+				}
+			} else {
+				console.log(`${colors.bold.green(`✔ ${event.type}`)} ${colors.gray(`(${prettyMs(event.duration)})`)}`);
 			}
 		});
+	} catch (err) {
+		console.log(`${colors.bold.red(`> ${err.message}`)}`);
+		process.exit(1);
 	}
-
-	watch(compilers.server, {
-		name: 'server',
-
-		invalid: filename => {
-			restart_build(filename);
-			// TODO print message
-			deferreds.server = deferred();
-		},
-
-		result: info => {
-			// TODO log compile errors/warnings
-
-			fs.writeFileSync(path.join(dir, 'server_info.json'), JSON.stringify(info, null, '  '));
-
-			deferreds.client.promise.then(() => {
-				function restart() {
-					wait_for_port(3000).then(deferreds.server.fulfil); // TODO control port
-				}
-
-				if (proc) {
-					proc.kill();
-					proc.on('exit', restart);
-				} else {
-					restart();
-				}
-
-				proc = child_process.fork(`${dir}/server.js`, [], {
-					cwd: process.cwd(),
-					env: Object.assign({}, process.env)
-				});
-			});
-		}
-	});
-
-	watch(compilers.client, {
-		name: 'client',
-
-		invalid: filename => {
-			restart_build(filename);
-			deferreds.client = deferred();
-
-			// TODO we should delete old assets. due to a webpack bug
-			// i don't even begin to comprehend, this is apparently
-			// quite difficult
-		},
-
-		result: info => {
-			fs.writeFileSync(path.join(dir, 'client_info.json'), JSON.stringify(info, null, '  '));
-			deferreds.client.fulfil();
-
-			const client_files = info.assets.map((chunk: { name: string }) => `/client/${chunk.name}`);
-
-			deferreds.server.promise.then(() => {
-				hot_update_server.send({
-					status: 'completed'
-				});
-			});
-
-			create_serviceworker({
-				routes: create_routes(),
-				client_files
-			});
-
-			watch_serviceworker();
-		}
-	});
-
-	let watch_serviceworker = compilers.serviceworker
-		? function() {
-			watch_serviceworker = noop;
-
-			watch(compilers.serviceworker, {
-				name: 'service worker',
-
-				result: info => {
-					fs.writeFileSync(path.join(dir, 'serviceworker_info.json'), JSON.stringify(info, null, '  '));
-				}
-			});
-		}
-		: noop;
-}
-
-function noop() {}
-
-function watch_files(pattern: string, events: string[], callback: () => void) {
-	const chokidar = require('chokidar');
-
-	const watcher = chokidar.watch(pattern, {
-		persistent: true,
-		ignoreInitial: true
-	});
-
-	events.forEach(event => {
-		watcher.on(event, callback);
-	});
 }

src/cli/export.ts

@@ -1,94 +1,35 @@
-import * as child_process from 'child_process';
-import * as path from 'path';
-import * as sander from 'sander';
-import express from 'express';
-import cheerio from 'cheerio';
-import URL from 'url-parse';
-import fetch from 'node-fetch';
-import { wait_for_port } from './utils';
-import { dest } from '../config';
+import { exporter as _exporter } from '../api/export';
+import * as colors from 'ansi-colors';
+import prettyBytes from 'pretty-bytes';
+import { locations } from '../config';
 
-const app = express();
-
-function read_json(file: string) {
-	return JSON.parse(sander.readFileSync(file, { encoding: 'utf-8' }));
-}
-
-export default async function exporter(export_dir: string) {
-	const build_dir = dest();
-
-	// Prep output directory
-	sander.rimrafSync(export_dir);
-
-	sander.copydirSync('assets').to(export_dir);
-	sander.copydirSync(build_dir, 'client').to(export_dir, 'client');
-
-	if (sander.existsSync(build_dir, 'service-worker.js')) {
-		sander.copyFileSync(build_dir, 'service-worker.js').to(export_dir, 'service-worker.js');
-	}
-
-	const port = await require('get-port')(3000);
-
-	const origin = `http://localhost:${port}`;
-
-	const proc = child_process.fork(path.resolve(`${build_dir}/server.js`), [], {
-		cwd: process.cwd(),
-		env: {
-			PORT: port,
-			NODE_ENV: 'production',
-			SAPPER_EXPORT: 'true'
-		}
-	});
-
-	const seen = new Set();
-	const saved = new Set();
-
-	proc.on('message', message => {
-		if (!message.__sapper__) return;
-
-		const url = new URL(message.url, origin);
-
-		if (saved.has(url.pathname)) return;
-		saved.add(url.pathname);
-
-		if (message.type === 'text/html') {
-			const file = `${export_dir}/${url.pathname}/index.html`;
-			sander.writeFileSync(file, message.body);
-		} else {
-			const file = `${export_dir}/${url.pathname}`;
-			sander.writeFileSync(file, message.body);
-		}
-	});
-
-	function handle(url: URL) {
-		if (url.origin !== origin) return;
-
-		if (seen.has(url.pathname)) return;
-		seen.add(url.pathname);
-
-		return fetch(url.href)
-			.then(r => {
-				if (r.headers.get('Content-Type') === 'text/html') {
-					return r.text().then((body: string) => {
-						const $ = cheerio.load(body);
-						const hrefs: string[] = [];
-
-						$('a[href]').each((i: number, $a) => {
-							hrefs.push($a.attribs.href);
-						});
-
-						return hrefs.reduce((promise, href) => {
-							return promise.then(() => handle(new URL(href, url.href)));
-						}, Promise.resolve());
-					});
-				}
-			})
-			.catch((err: Error) => {
-				console.error(`Error rendering ${url.pathname}: ${err.message}`);
+export function exporter(export_dir: string, { basepath = '' }) {
+	return new Promise((fulfil, reject) => {
+		try {
+			const emitter = _exporter({
+				build: locations.dest(),
+				dest: export_dir,
+				basepath
 			});
-	}
 
-	wait_for_port(port)
-		.then(() => handle(new URL(origin))) // TODO all static routes
-		.then(() => proc.kill());
+			emitter.on('file', event => {
+				console.log(`${colors.bold.cyan(event.file)} ${colors.gray(`(${prettyBytes(event.size)})`)}`);
+			});
+
+			emitter.on('failure', event => {
+				console.log(`${colors.red(`> Received ${event.status} response when fetching ${event.pathname}`)}`);
+			});
+
+			emitter.on('error', event => {
+				reject(event.error);
+			});
+
+			emitter.on('done', event => {
+				fulfil();
+			});
+		} catch (err) {
+			console.log(`${colors.bold.red(`> ${err.message}`)}`);
+			process.exit(1);
+		}
+	});
 }

src/cli/help.md

@@ -1,20 +0,0 @@
-# sapper v<@version@>
-
-https://sapper.svelte.technology
-
-> sapper dev
-
-Start a development server
-
-> sapper build
-
-Creates a production-ready version of your app
-
-> sapper export
-
-If possible, exports your app as static files, suitable for hosting on
-services like Netlify or Surge
-
-> sapper --help
-
-Shows this message

src/cli/index.ts

@@ -1,89 +0,0 @@
-import * as path from 'path';
-import * as child_process from 'child_process';
-import mri from 'mri';
-import chalk from 'chalk';
-import help from './help.md';
-import build from './build';
-import exporter from './export';
-import dev from './dev';
-import upgrade from './upgrade';
-import * as pkg from '../../package.json';
-
-const opts = mri(process.argv.slice(2), {
-	alias: {
-		h: 'help'
-	}
-});
-
-if (opts.help) {
-	const rendered = help
-		.replace('<@version@>', pkg.version)
-		.replace(/^(.+)/gm, (m: string, $1: string) => /[#>]/.test(m) ? $1 : `  ${$1}`)
-		.replace(/^# (.+)/gm, (m: string, $1: string) => chalk.bold.underline($1))
-		.replace(/^> (.+)/gm, (m: string, $1: string) => chalk.cyan($1));
-
-	console.log(`\n${rendered}\n`);
-	process.exit(0);
-}
-
-const [cmd] = opts._;
-
-const start = Date.now();
-
-switch (cmd) {
-	case 'build':
-		process.env.NODE_ENV = 'production';
-		process.env.SAPPER_DEST = opts._[1] || 'build';
-
-		build()
-			.then(() => {
-				const elapsed = Date.now() - start;
-				console.error(`built in ${elapsed}ms`); // TODO beautify this, e.g. 'built in 4.7 seconds'
-			})
-			.catch(err => {
-				console.error(err ? err.details || err.stack || err.message || err : 'Unknown error');
-			});
-
-		break;
-
-	case 'export':
-		process.env.NODE_ENV = 'production';
-
-		const export_dir = opts._[1] || 'export';
-
-		build()
-			.then(() => exporter(export_dir))
-			.then(() => {
-				const elapsed = Date.now() - start;
-				console.error(`extracted in ${elapsed}ms`); // TODO beautify this, e.g. 'built in 4.7 seconds'
-			})
-			.catch(err => {
-				console.error(err ? err.details || err.stack || err.message || err : 'Unknown error');
-			});
-
-		break;
-
-	case 'dev':
-		dev();
-		break;
-
-	case 'upgrade':
-		upgrade();
-		break;
-
-	case 'start':
-		const dir = path.resolve(opts._[1] || 'build');
-
-		child_process.fork(`${dir}/server.js`, [], {
-			cwd: process.cwd(),
-			env: Object.assign({
-				NODE_ENV: 'production',
-				SAPPER_DEST: dir
-			}, process.env)
-		});
-
-		break;
-
-	default:
-		console.log(`unrecognized command ${cmd} — try \`sapper --help\` for more information`);
-}

src/cli/start.ts

@@ -0,0 +1,39 @@
+import * as fs from 'fs';
+import * as path from 'path';
+import * as child_process from 'child_process';
+import * as colors from 'ansi-colors';
+import * as ports from 'port-authority';
+
+export async function start(dir: string, opts: { port: number, open: boolean }) {
+	let port = opts.port || +process.env.PORT;
+
+	const resolved = path.resolve(dir);
+	const server = path.resolve(dir, 'server.js');
+
+	if (!fs.existsSync(server)) {
+		console.log(`${colors.bold.red(`> ${dir}/server.js does not exist — type ${colors.bold.cyan(dir === 'build' ? `npx sapper build` : `npx sapper build ${dir}`)} to create it`)}`);
+		return;
+	}
+
+	if (port) {
+		if (!await ports.check(port)) {
+			console.log(`${colors.bold.red(`> Port ${port} is unavailable`)}`);
+			return;
+		}
+	} else {
+		port = await ports.find(3000);
+	}
+
+	child_process.fork(server, [], {
+		cwd: process.cwd(),
+		env: Object.assign({
+			NODE_ENV: 'production',
+			PORT: port,
+			SAPPER_DEST: dir
+		}, process.env)
+	});
+
+	await ports.wait(port);
+	console.log(`${colors.bold.cyan(`> Listening on http://localhost:${port}`)}`);
+	if (opts.open) child_process.exec(`open http://localhost:${port}`);
+}

src/cli/upgrade.ts

@@ -1,5 +1,5 @@
 import * as fs from 'fs';
-import chalk from 'chalk';
+import * as colors from 'ansi-colors';
 
 export default async function upgrade() {
 	const upgraded = [
@@ -27,10 +27,10 @@ async function upgrade_sapper_main() {
 
 		if (/\%sapper\.main\%/.test(template)) {
 			if (!pattern.test(template)) {
-				console.log(chalk.red(`Could not replace %sapper.main% in ${file}`));
+				console.log(`${colors.red(`Could not replace %sapper.main% in ${file}`)}`);
 			} else {
 				write(file, template.replace(pattern, `%sapper.scripts%`));
-				console.log(chalk.green(`Replaced %sapper.main% in ${file}`));
+				console.log(`${colors.green(`Replaced %sapper.main% in ${file}`)}`);
 				replaced = true;
 			}
 		}
@@ -50,4 +50,4 @@ function read(file: string) {
 
 function write(file: string, data: string) {
 	fs.writeFileSync(file, data);
-}
+}

src/cli/utils.ts

@@ -1,25 +0,0 @@
-import * as net from 'net';
-
-export function wait_for_port(port: number, timeout = 5000) {
-	return new Promise((fulfil, reject) => {
-		get_connection(port, fulfil);
-		setTimeout(() => reject(new Error(`timed out waiting for connection`)), timeout);
-	});
-}
-
-export function get_connection(port: number, cb: () => void) {
-	const socket = net.createConnection(port, 'localhost', () => {
-		cb();
-		socket.destroy();
-	});
-
-	socket.on('error', err => {
-		setTimeout(() => {
-			get_connection(port, cb);
-		}, 10);
-	});
-
-	setTimeout(() => {
-		socket.destroy();
-	}, 1000);
-}

src/config.ts

@@ -1,5 +1,10 @@
 import * as path from 'path';
 
 export const dev = () => process.env.NODE_ENV !== 'production';
-export const src = () => path.resolve(process.env.SAPPER_ROUTES || 'routes');
-export const dest = () => path.resolve(process.env.SAPPER_DEST || '.sapper');
+
+export const locations = {
+	base:   () => path.resolve(process.env.SAPPER_BASE || ''),
+	app:    () => path.resolve(process.env.SAPPER_BASE || '', process.env.SAPPER_APP    || 'app'),
+	routes: () => path.resolve(process.env.SAPPER_BASE || '', process.env.SAPPER_ROUTES || 'routes'),
+	dest:   () => path.resolve(process.env.SAPPER_BASE || '', process.env.SAPPER_DEST   || '.sapper')
+};

src/core.ts

@@ -0,0 +1,3 @@
+export * from './core/create_manifests';
+export { default as create_compilers } from './core/create_compilers';
+export { default as create_routes } from './core/create_routes';

src/core/create_app.ts

@@ -1,107 +0,0 @@
-import * as fs from 'fs';
-import * as path from 'path';
-import mkdirp from 'mkdirp';
-import create_routes from './create_routes';
-import { fudge_mtime, posixify, write } from './utils';
-import { dev } from '../config';
-import { Route } from '../interfaces';
-
-// in dev mode, we avoid touching the fs unnecessarily
-let last_client_manifest: string = null;
-let last_server_manifest: string = null;
-
-export default function create_app({ routes, dev_port }: {
-	routes: Route[];
-	dev_port: number;
-}) {
-	mkdirp.sync('app/manifest');
-
-	const client_manifest = generate_client(routes, dev_port);
-	const server_manifest = generate_server(routes);
-
-	if (client_manifest !== last_client_manifest) {
-		write(`app/manifest/client.js`, client_manifest);
-		last_client_manifest = client_manifest;
-	}
-
-	if (server_manifest !== last_server_manifest) {
-		write(`app/manifest/server.js`, server_manifest);
-		last_server_manifest = server_manifest;
-	}
-}
-
-function generate_client(routes: Route[], dev_port?: number) {
-	let code = `
-		// This file is generated by Sapper — do not edit it!
-		export const routes = [
-			${routes
-				.map(route => {
-					if (route.type !== 'page') {
-						return `{ pattern: ${route.pattern}, ignore: true }`;
-					}
-
-					const file = posixify(`../../routes/${route.file}`);
-
-					if (route.id === '_4xx' || route.id === '_5xx') {
-						return `{ error: '${route.id.slice(1)}', load: () => import(/* webpackChunkName: "${route.id}" */ '${file}') }`;
-					}
-
-					const params = route.params.length === 0
-						? '{}'
-						: `{ ${route.params.map((part, i) => `${part}: match[${i + 1}]`).join(', ')} }`;
-
-					return `{ pattern: ${route.pattern}, params: ${route.params.length > 0 ? `match` : `()`} => (${params}), load: () => import(/* webpackChunkName: "${route.id}" */ '${file}') }`;
-				})
-				.join(',\n\t')}
-		];`.replace(/^\t\t/gm, '').trim();
-
-	if (dev()) {
-		const sapper_dev_client = posixify(
-			path.resolve(__dirname, 'sapper-dev-client.js')
-		);
-
-		code += `
-
-			if (module.hot) {
-				import('${sapper_dev_client}').then(client => {
-					client.connect(${dev_port});
-				});
-			}`.replace(/^\t{3}/gm, '');
-	}
-
-	return code;
-}
-
-function generate_server(routes: Route[]) {
-	let code = `
-		// This file is generated by Sapper — do not edit it!
-		${routes
-			.map(route => {
-				const file = posixify(`../../routes/${route.file}`);
-				return route.type === 'page'
-					? `import ${route.id} from '${file}';`
-					: `import * as ${route.id} from '${file}';`;
-			})
-			.join('\n')}
-
-		export const routes = [
-			${routes
-				.map(route => {
-					const file = posixify(`../../${route.file}`);
-
-					if (route.id === '_4xx' || route.id === '_5xx') {
-						return `{ error: '${route.id.slice(1)}', module: ${route.id} }`;
-					}
-
-					const params = route.params.length === 0
-						? '{}'
-						: `{ ${route.params.map((part, i) => `${part}: match[${i + 1}]`).join(', ')} }`;
-
-					return `{ id: '${route.id}', type: '${route.type}', pattern: ${route.pattern}, params: ${route.params.length > 0 ? `match` : `()`} => (${params}), module: ${route.id} }`;
-				})
-				.join(',\n\t')
-			}
-		];`.replace(/^\t\t/gm, '').trim();
-
-	return code;
-}

src/core/create_compilers.ts

@@ -1,21 +1,21 @@
 import * as path from 'path';
 import relative from 'require-relative';
 
-export default function create_compilers() {
-	const webpack = relative('webpack', process.cwd());
+export default function create_compilers({ webpack }: { webpack: string }) {
+	const wp = relative('webpack', process.cwd());
 
-	const serviceworker_config = try_require(path.resolve('webpack/service-worker.config.js'));
+	const serviceworker_config = try_require(path.resolve(`${webpack}/service-worker.config.js`));
 
 	return {
-		client: webpack(
-			require(path.resolve('webpack/client.config.js'))
+		client: wp(
+			require(path.resolve(`${webpack}/client.config.js`))
 		),
 
-		server: webpack(
-			require(path.resolve('webpack/server.config.js'))
+		server: wp(
+			require(path.resolve(`${webpack}/server.config.js`))
 		),
 
-		serviceworker: serviceworker_config && webpack(serviceworker_config)
+		serviceworker: serviceworker_config && wp(serviceworker_config)
 	};
 }
 

src/core/create_manifests.ts

@@ -0,0 +1,125 @@
+import * as fs from 'fs';
+import * as path from 'path';
+import * as glob from 'glob';
+import { posixify, write_if_changed } from './utils';
+import { dev, locations } from '../config';
+import { Route } from '../interfaces';
+
+export function create_main_manifests({ routes, dev_port }: {
+	routes: Route[];
+	dev_port?: number;
+}) {
+	const path_to_routes = path.relative(`${locations.app()}/manifest`, locations.routes());
+
+	const client_manifest = generate_client(routes, path_to_routes, dev_port);
+	const server_manifest = generate_server(routes, path_to_routes);
+
+	write_if_changed(`${locations.app()}/manifest/client.js`, client_manifest);
+	write_if_changed(`${locations.app()}/manifest/server.js`, server_manifest);
+}
+
+export function create_serviceworker_manifest({ routes, client_files }: {
+	routes: Route[];
+	client_files: string[];
+}) {
+	const assets = glob.sync('**', { cwd: 'assets', nodir: true });
+
+	let code = `
+		// This file is generated by Sapper — do not edit it!
+		export const timestamp = ${Date.now()};
+
+		export const assets = [\n\t${assets.map((x: string) => `"${x}"`).join(',\n\t')}\n];
+
+		export const shell = [\n\t${client_files.map((x: string) => `"${x}"`).join(',\n\t')}\n];
+
+		export const routes = [\n\t${routes.filter((r: Route) => r.type === 'page' && !/^_[45]xx$/.test(r.id)).map((r: Route) => `{ pattern: ${r.pattern} }`).join(',\n\t')}\n];
+	`.replace(/^\t\t/gm, '').trim();
+
+	write_if_changed(`${locations.app()}/manifest/service-worker.js`, code);
+}
+
+function generate_client(routes: Route[], path_to_routes: string, dev_port?: number) {
+	let code = `
+		// This file is generated by Sapper — do not edit it!
+		export const routes = [
+			${routes
+				.map(route => {
+					const page = route.handlers.find(({ type }) => type === 'page');
+
+					if (!page) {
+						return `{ pattern: ${route.pattern}, ignore: true }`;
+					}
+
+					const file = posixify(`${path_to_routes}/${page.file}`);
+
+					if (route.id === '_4xx' || route.id === '_5xx') {
+						return `{ error: '${route.id.slice(1)}', load: () => import(/* webpackChunkName: "${route.id}" */ '${file}') }`;
+					}
+
+					const params = route.params.length === 0
+						? '{}'
+						: `{ ${route.params.map((part, i) => `${part}: match[${i + 1}]`).join(', ')} }`;
+
+					return `{ pattern: ${route.pattern}, params: ${route.params.length > 0 ? `match` : `()`} => (${params}), load: () => import(/* webpackChunkName: "${route.id}" */ '${file}') }`;
+				})
+				.join(',\n\t')}
+		];`.replace(/^\t\t/gm, '').trim();
+
+	if (dev()) {
+		const sapper_dev_client = posixify(
+			path.resolve(__dirname, '../sapper-dev-client.js')
+		);
+
+		code += `
+
+			if (module.hot) {
+				import('${sapper_dev_client}').then(client => {
+					client.connect(${dev_port});
+				});
+			}`.replace(/^\t{3}/gm, '');
+	}
+
+	return code;
+}
+
+function generate_server(routes: Route[], path_to_routes: string) {
+	let code = `
+		// This file is generated by Sapper — do not edit it!
+		${routes
+			.map(route =>
+				route.handlers
+					.map(({ type, file }, index) => {
+						const module = posixify(`${path_to_routes}/${file}`);
+
+						return type === 'page'
+							? `import ${route.id}${index} from '${module}';`
+							: `import * as ${route.id}${index} from '${module}';`;
+					})
+					.join('\n')
+			)
+			.join('\n')}
+
+		export const routes = [
+			${routes
+				.map(route => {
+					const handlers = route.handlers
+						.map(({ type }, index) =>
+							`{ type: '${type}', module: ${route.id}${index} }`)
+						.join(', ');
+
+					if (route.id === '_4xx' || route.id === '_5xx') {
+						return `{ error: '${route.id.slice(1)}', handlers: [${handlers}] }`;
+					}
+
+					const params = route.params.length === 0
+						? '{}'
+						: `{ ${route.params.map((part, i) => `${part}: match[${i + 1}]`).join(', ')} }`;
+
+					return `{ id: '${route.id}', pattern: ${route.pattern}, params: ${route.params.length > 0 ? `match` : `()`} => (${params}), handlers: [${handlers}] }`;
+				})
+				.join(',\n\t')
+			}
+		];`.replace(/^\t\t/gm, '').trim();
+
+	return code;
+}

src/core/create_routes.ts

@@ -1,12 +1,13 @@
 import * as path from 'path';
 import glob from 'glob';
-import { src } from '../config';
+import { locations } from '../config';
 import { Route } from '../interfaces';
 
-export default function create_routes({ files } = { files: glob.sync('**/*.+(html|js|mjs)', { cwd: src() }) }) {
+export default function create_routes({ files } = { files: glob.sync('**/*.*', { cwd: locations.routes(), dot: true, nodir: true }) }) {
 	const routes: Route[] = files
+		.filter((file: string) => !/(^|\/|\\)_/.test(file))
 		.map((file: string) => {
-			if (/(^|\/|\\)_/.test(file)) return;
+			if (/(^|\/|\\)(_|\.(?!well-known))/.test(file)) return;
 
 			if (/]\[/.test(file)) {
 				throw new Error(`Invalid route ${file} — parameters must be separated`);
@@ -16,6 +17,58 @@ export default function create_routes({ files } = { files: glob.sync('**/*.+(htm
 			const parts = base.split('/'); // glob output is always posix-style
 			if (parts[parts.length - 1] === 'index') parts.pop();
 
+			return {
+				files: [file],
+				base,
+				parts
+			};
+		})
+		.filter(Boolean)
+		.filter((a, index, array) => {
+			const found = array.slice(index + 1).find(b => a.base === b.base);
+			if (found) found.files.push(...a.files);
+			return !found;
+		})
+		.sort((a, b) => {
+			if (a.parts[0] === '4xx' || a.parts[0] === '5xx') return -1;
+			if (b.parts[0] === '4xx' || b.parts[0] === '5xx') return 1;
+
+			const max = Math.max(a.parts.length, b.parts.length);
+
+			for (let i = 0; i < max; i += 1) {
+				const a_part = a.parts[i];
+				const b_part = b.parts[i];
+
+				if (!a_part) return -1;
+				if (!b_part) return 1;
+
+				const a_sub_parts = get_sub_parts(a_part);
+				const b_sub_parts = get_sub_parts(b_part);
+				const max = Math.max(a_sub_parts.length, b_sub_parts.length);
+
+				for (let i = 0; i < max; i += 1) {
+					const a_sub_part = a_sub_parts[i];
+					const b_sub_part = b_sub_parts[i];
+
+					if (!a_sub_part) return 1; // b is more specific, so goes first
+					if (!b_sub_part) return -1;
+
+					if (a_sub_part.dynamic !== b_sub_part.dynamic) {
+						return a_sub_part.dynamic ? 1 : -1;
+					}
+
+					if (!a_sub_part.dynamic && a_sub_part.content !== b_sub_part.content) {
+						return (
+							(b_sub_part.content.length - a_sub_part.content.length) ||
+							(a_sub_part.content < b_sub_part.content ? -1 : 1)
+						);
+					}
+				}
+			}
+
+			throw new Error(`The ${a.base} and ${b.base} routes clash`);
+		})
+		.map(({ files, base, parts }) => {
 			const id = (
 				parts.join('_').replace(/[[\]]/g, '$').replace(/^\d/, '_$&').replace(/[^a-zA-Z0-9_$]/g, '_')
 			 ) || '_';
@@ -33,7 +86,7 @@ export default function create_routes({ files } = { files: glob.sync('**/*.+(htm
 			let i = parts.length;
 			let nested = true;
 			while (i--) {
-				const part = encodeURIComponent(parts[i].normalize()).replace(/%5B/g, '[').replace(/%5D/g, ']');
+				const part = encodeURI(parts[i].normalize()).replace(/\?/g, '%3F').replace(/#/g, '%23').replace(/%5B/g, '[').replace(/%5D/g, ']');
 				const dynamic = ~part.indexOf('[');
 
 				if (dynamic) {
@@ -63,52 +116,26 @@ export default function create_routes({ files } = { files: glob.sync('**/*.+(htm
 
 			return {
 				id,
-				type: path.extname(file) === '.html' ? 'page' : 'route',
-				file,
+				handlers: files.map(file => ({
+					type: path.extname(file) === '.html' ? 'page' : 'route',
+					file
+				})).sort((a, b) => {
+					if (a.type === 'page' && b.type === 'route') {
+						return 1;
+					}
+
+					if (a.type === 'route' && b.type === 'page') {
+						return -1;
+					}
+
+					return 0;
+				}),
 				pattern,
 				test,
 				exec,
 				parts,
 				params
 			};
-		})
-		.filter(Boolean)
-		.sort((a: Route, b: Route) => {
-			let same = true;
-
-			for (let i = 0; true; i += 1) {
-				const a_part = a.parts[i];
-				const b_part = b.parts[i];
-
-				if (!a_part && !b_part) {
-					if (same) throw new Error(`The ${a.file} and ${b.file} routes clash`);
-					return 0;
-				}
-
-				if (!a_part) return -1;
-				if (!b_part) return 1;
-
-				const a_sub_parts = get_sub_parts(a_part);
-				const b_sub_parts = get_sub_parts(b_part);
-
-				for (let i = 0; true; i += 1) {
-					const a_sub_part = a_sub_parts[i];
-					const b_sub_part = b_sub_parts[i];
-
-					if (!a_sub_part && !b_sub_part) break;
-
-					if (!a_sub_part) return 1; // note this is reversed from above — match [foo].json before [foo]
-					if (!b_sub_part) return -1;
-
-					if (a_sub_part.dynamic !== b_sub_part.dynamic) {
-						return a_sub_part.dynamic ? 1 : -1;
-					}
-
-					if (!a_sub_part.dynamic && a_sub_part.content !== b_sub_part.content) {
-						return b_sub_part.content.length - a_sub_part.content.length;
-					}
-				}
-			}
 		});
 
 	return routes;

src/core/create_serviceworker.ts

@@ -1,26 +0,0 @@
-import * as fs from 'fs';
-import * as path from 'path';
-import glob from 'glob';
-import create_routes from './create_routes';
-import { fudge_mtime, posixify, write } from './utils';
-import { Route } from '../interfaces';
-
-export default function create_serviceworker({ routes, client_files }: {
-	routes: Route[];
-	client_files: string[];
-}) {
-	const assets = glob.sync('**', { cwd: 'assets', nodir: true });
-
-	let code = `
-		// This file is generated by Sapper — do not edit it!
-		export const timestamp = ${Date.now()};
-
-		export const assets = [\n\t${assets.map((x: string) => `"${x}"`).join(',\n\t')}\n];
-
-		export const shell = [\n\t${client_files.map((x: string) => `"${x}"`).join(',\n\t')}\n];
-
-		export const routes = [\n\t${routes.filter((r: Route) => r.type === 'page' && !/^_[45]xx$/.test(r.id)).map((r: Route) => `{ pattern: ${r.pattern} }`).join(',\n\t')}\n];
-	`.replace(/^\t\t/gm, '').trim();
-
-	write('app/manifest/service-worker.js', code);
-}

src/core/index.ts

@@ -1,4 +0,0 @@
-export { default as create_app } from './create_app';
-export { default as create_serviceworker } from './create_serviceworker';
-export { default as create_compilers } from './create_compilers';
-export { default as create_routes } from './create_routes';

src/core/utils.ts

@@ -1,8 +1,13 @@
-import * as fs from 'fs';
+import * as sander from 'sander';
 
-export function write(file: string, code: string) {
-	fs.writeFileSync(file, code);
-	fudge_mtime(file);
+const previous_contents = new Map();
+
+export function write_if_changed(file: string, code: string) {
+	if (code !== previous_contents.get(file)) {
+		previous_contents.set(file, code);
+		sander.writeFileSync(file, code);
+		fudge_mtime(file);
+	}
 }
 
 export function posixify(file: string) {
@@ -11,8 +16,8 @@ export function posixify(file: string) {
 
 export function fudge_mtime(file: string) {
 	// need to fudge the mtime so that webpack doesn't go doolally
-	const { atime, mtime } = fs.statSync(file);
-	fs.utimesSync(
+	const { atime, mtime } = sander.statSync(file);
+	sander.utimesSync(
 		file,
 		new Date(atime.getTime() - 999999),
 		new Date(mtime.getTime() - 999999)

src/interfaces.ts

@@ -1,7 +1,9 @@
 export type Route = {
 	id: string;
-	type: 'page' | 'route';
-	file: string;
+	handlers: {
+		type: 'page' | 'route';
+		file: string;
+	}[];
 	pattern: RegExp;
 	test: (url: string) => boolean;
 	exec: (url: string) => Record<string, string>;
@@ -12,4 +14,8 @@ export type Route = {
 export type Template = {
 	render: (data: Record<string, string>) => string;
 	stream: (req, res, data: Record<string, string | Promise<string>>) => void;
+};
+
+export type Store = {
+	get: () => any;
 };

src/middleware.ts

@@ -0,0 +1,464 @@
+import * as fs from 'fs';
+import * as path from 'path';
+import { resolve, URL } from 'url';
+import { ClientRequest, ServerResponse } from 'http';
+import cookie from 'cookie';
+import mkdirp from 'mkdirp';
+import rimraf from 'rimraf';
+import devalue from 'devalue';
+import fetch from 'node-fetch';
+import { lookup } from './middleware/mime';
+import { locations, dev } from './config';
+import { Route, Template } from './interfaces';
+import sourceMapSupport from 'source-map-support';
+
+sourceMapSupport.install();
+
+type RouteObject = {
+	id: string;
+	type: 'page' | 'route';
+	pattern: RegExp;
+	params: (match: RegExpMatchArray) => Record<string, string>;
+	module: Component;
+	error?: string;
+}
+
+type Handler = (req: Req, res: ServerResponse, next: () => void) => void;
+
+type Store = {
+	get: () => any
+};
+
+interface Req extends ClientRequest {
+	url: string;
+	baseUrl: string;
+	originalUrl: string;
+	method: string;
+	path: string;
+	params: Record<string, string>;
+	headers: Record<string, string>;
+}
+
+interface Component {
+	render: (data: any, opts: { store: Store }) => {
+		head: string;
+		css: { code: string, map: any };
+		html: string
+	},
+	preload: (data: any) => any | Promise<any>
+}
+
+export default function middleware({ App, routes, store }: {
+	App: Component,
+	routes: RouteObject[],
+	store: (req: Req) => Store
+}) {
+	if (!App) {
+		throw new Error(`As of 0.12, you must supply an App component to Sapper — see https://sapper.svelte.technology/guide#0-11-to-0-12 for more information`);
+	}
+
+	const output = locations.dest();
+
+	const client_assets = JSON.parse(fs.readFileSync(path.join(output, 'client_assets.json'), 'utf-8'));
+
+	const middleware = compose_handlers([
+		(req: Req, res: ServerResponse, next: () => void) => {
+			if (req.baseUrl === undefined) {
+				req.baseUrl = req.originalUrl
+					? req.originalUrl.slice(0, -req.url.length)
+					: '';
+			}
+
+			if (req.path === undefined) {
+				req.path = req.url.replace(/\?.*/, '');
+			}
+
+			next();
+		},
+
+		fs.existsSync(path.join(output, 'index.html')) && serve({
+			pathname: '/index.html',
+			cache_control: 'max-age=600'
+		}),
+
+		fs.existsSync(path.join(output, 'service-worker.js')) && serve({
+			pathname: '/service-worker.js',
+			cache_control: 'max-age=600'
+		}),
+
+		fs.existsSync(path.join(output, 'service-worker.js.map')) && serve({
+			pathname: '/service-worker.js.map',
+			cache_control: 'max-age=600'
+		}),
+
+		serve({
+			prefix: '/client/',
+			cache_control: 'max-age=31536000'
+		}),
+
+		get_route_handler(client_assets, App, routes, store)
+	].filter(Boolean));
+
+	return middleware;
+}
+
+function serve({ prefix, pathname, cache_control }: {
+	prefix?: string,
+	pathname?: string,
+	cache_control: string
+}) {
+	const filter = pathname
+		? (req: Req) => req.path === pathname
+		: (req: Req) => req.path.startsWith(prefix);
+
+	const output = locations.dest();
+
+	const cache: Map<string, Buffer> = new Map();
+
+	const read = dev()
+		? (file: string) => fs.readFileSync(path.resolve(output, file))
+		: (file: string) => (cache.has(file) ? cache : cache.set(file, fs.readFileSync(path.resolve(output, file)))).get(file)
+
+	return (req: Req, res: ServerResponse, next: () => void) => {
+		if (filter(req)) {
+			const type = lookup(req.path);
+
+			try {
+				const data = read(req.path.slice(1));
+
+				res.setHeader('Content-Type', type);
+				res.setHeader('Cache-Control', cache_control);
+				res.end(data);
+			} catch (err) {
+				res.statusCode = 404;
+				res.end('not found');
+			}
+		} else {
+			next();
+		}
+	};
+}
+
+const resolved = Promise.resolve();
+
+function get_route_handler(chunks: Record<string, string>, App: Component, routes: RouteObject[], store_getter: (req: Req) => Store) {
+	const template = dev()
+		? () => fs.readFileSync(`${locations.app()}/template.html`, 'utf-8')
+		: (str => () => str)(fs.readFileSync(`${locations.dest()}/template.html`, 'utf-8'));
+
+	function handle_route(route: RouteObject, req: Req, res: ServerResponse) {
+		req.params = route.params(route.pattern.exec(req.path));
+
+		const handlers = route.handlers[Symbol.iterator]();
+
+		function next() {
+			try {
+				const { value: handler, done } = handlers.next();
+
+				if (done) {
+					handle_error(req, res, 404, 'Not found');
+					return;
+				}
+
+				const mod = handler.module;
+
+				if (handler.type === 'page') {
+					res.setHeader('Content-Type', 'text/html');
+
+					// preload main.js and current route
+					// TODO detect other stuff we can preload? images, CSS, fonts?
+					const link = []
+						.concat(chunks.main, chunks[route.id])
+						.filter(file => !file.match(/\.map$/))
+						.map(file => `<${req.baseUrl}/client/${file}>;rel="preload";as="script"`)
+						.join(', ');
+
+					res.setHeader('Link', link);
+
+					const store = store_getter ? store_getter(req) : null;
+					const props = { params: req.params, query: req.query, path: req.path };
+
+					let redirect: { statusCode: number, location: string };
+					let error: { statusCode: number, message: Error | string };
+
+					Promise.resolve(
+						mod.preload ? mod.preload.call({
+							redirect: (statusCode: number, location: string) => {
+								redirect = { statusCode, location };
+							},
+							error: (statusCode: number, message: Error | string) => {
+								error = { statusCode, message };
+							},
+							fetch: (url: string, opts?: any) => {
+								const parsed = new URL(url, `http://127.0.0.1:${process.env.PORT}${req.baseUrl ? req.baseUrl + '/'  :''}`);
+
+								if (opts) {
+									opts = Object.assign({}, opts);
+
+									const include_cookies = (
+										opts.credentials === 'include' ||
+										opts.credentials === 'same-origin' && parsed.origin === `http://127.0.0.1:${process.env.PORT}`
+									);
+
+									if (include_cookies) {
+										const cookies: Record<string, string> = {};
+										if (!opts.headers) opts.headers = {};
+
+										const str = []
+											.concat(
+												cookie.parse(req.headers.cookie || ''),
+												cookie.parse(opts.headers.cookie || ''),
+												cookie.parse(res.getHeader('Set-Cookie') || '')
+											)
+											.map(cookie => {
+												return Object.keys(cookie)
+													.map(name => `${name}=${encodeURIComponent(cookie[name])}`)
+													.join('; ');
+											})
+											.filter(Boolean)
+											.join(', ');
+
+										opts.headers.cookie = str;
+									}
+								}
+
+								return fetch(parsed.href, opts);
+							},
+						store
+						}, req) : {}
+					).catch(err => {
+						error = { statusCode: 500, message: err };
+					}).then(preloaded => {
+						if (redirect) {
+							res.statusCode = redirect.statusCode;
+							res.setHeader('Location', `${req.baseUrl}/${redirect.location}`);
+							res.end();
+
+							return;
+						}
+
+						if (error) {
+							handle_error(req, res, error.statusCode, error.message);
+							return;
+						}
+
+						const serialized = {
+							preloaded: mod.preload && try_serialize(preloaded),
+							store: store && try_serialize(store.get())
+						};
+						Object.assign(props, preloaded);
+
+						const { html, head, css } = App.render({ Page: mod, props }, {
+							store
+						});
+
+						let scripts = []
+							.concat(chunks.main) // chunks main might be an array. it might not! thanks, webpack
+							.filter(file => !file.match(/\.map$/))
+							.map(file => `<script src='${req.baseUrl}/client/${file}'></script>`)
+							.join('');
+
+						let inline_script = `__SAPPER__={${[
+							`baseUrl: "${req.baseUrl}"`,
+							serialized.preloaded && `preloaded: ${serialized.preloaded}`,
+							serialized.store && `store: ${serialized.store}`
+						].filter(Boolean).join(',')}};`;
+
+						const has_service_worker = fs.existsSync(path.join(locations.dest(), 'service-worker.js'));
+						if (has_service_worker) {
+							inline_script += `if ('serviceWorker' in navigator) navigator.serviceWorker.register('${req.baseUrl}/service-worker.js');`;
+						}
+
+						const page = template()
+							.replace('%sapper.base%', `<base href="${req.baseUrl}/">`)
+							.replace('%sapper.scripts%', `<script>${inline_script}</script>${scripts}`)
+							.replace('%sapper.html%', html)
+							.replace('%sapper.head%', `<noscript id='sapper-head-start'></noscript>${head}<noscript id='sapper-head-end'></noscript>`)
+							.replace('%sapper.styles%', (css && css.code ? `<style>${css.code}</style>` : ''));
+
+						res.end(page);
+
+						if (process.send) {
+							process.send({
+								__sapper__: true,
+								url: req.url,
+								method: req.method,
+								status: 200,
+								type: 'text/html',
+								body: page
+							});
+						}
+					});
+				}
+
+				else {
+					const method = req.method.toLowerCase();
+					// 'delete' cannot be exported from a module because it is a keyword,
+					// so check for 'del' instead
+					const method_export = method === 'delete' ? 'del' : method;
+					const handle_method = mod[method_export];
+					if (handle_method) {
+						if (process.env.SAPPER_EXPORT) {
+							const { write, end, setHeader } = res;
+							const chunks: any[] = [];
+							const headers: Record<string, string> = {};
+
+							// intercept data so that it can be exported
+							res.write = function(chunk: any) {
+								chunks.push(new Buffer(chunk));
+								write.apply(res, arguments);
+							};
+
+							res.setHeader = function(name: string, value: string) {
+								headers[name.toLowerCase()] = value;
+								setHeader.apply(res, arguments);
+							};
+
+							res.end = function(chunk?: any) {
+								if (chunk) chunks.push(new Buffer(chunk));
+								end.apply(res, arguments);
+
+								process.send({
+									__sapper__: true,
+									url: req.url,
+									method: req.method,
+									status: res.statusCode,
+									type: headers['content-type'],
+									body: Buffer.concat(chunks).toString()
+								});
+							};
+						}
+
+						const handle_bad_result = (err?: Error) => {
+							if (err) {
+								console.error(err.stack);
+								res.statusCode = 500;
+								res.end(err.message);
+							} else {
+								process.nextTick(next);
+							}
+						};
+
+						try {
+							handle_method(req, res, handle_bad_result);
+						} catch (err) {
+							handle_bad_result(err);
+						}
+					} else {
+						// no matching handler for method
+						process.nextTick(next);
+					}
+				}
+			} catch (error) {
+				handle_error(req, res, 500, error);
+			}
+		}
+
+		next();
+	}
+
+	const not_found_route = routes.find((route: RouteObject) => route.error === '4xx');
+	const error_route = routes.find((route: RouteObject) => route.error === '5xx');
+
+	function handle_error(req: Req, res: ServerResponse, statusCode: number, message: Error | string) {
+		res.statusCode = statusCode;
+		res.setHeader('Content-Type', 'text/html');
+
+		const error = message instanceof Error ? message : new Error(message);
+
+		const not_found = statusCode >= 400 && statusCode < 500;
+
+		const route = not_found
+			? not_found_route
+			: error_route;
+
+		function render_page({ head, css, html }) {
+			const page = template()
+				.replace('%sapper.base%', `<base href="${req.baseUrl}/">`)
+				.replace('%sapper.scripts%', `<script>__SAPPER__={baseUrl: "${req.baseUrl}"}</script><script src='${req.baseUrl}/client/${chunks.main}'></script>`)
+				.replace('%sapper.html%', html)
+				.replace('%sapper.head%', `<noscript id='sapper-head-start'></noscript>${head}<noscript id='sapper-head-end'></noscript>`)
+				.replace('%sapper.styles%', (css && css.code ? `<style>${css.code}</style>` : ''));
+
+			res.end(page);
+		}
+
+		function handle_notfound() {
+			const title: string = not_found
+				? 'Not found'
+				: `Internal server error: ${error.message}`;
+
+			render_page({ head: '', css: null, html: title });
+		}
+
+		if (route) {
+			const handlers = route.handlers[Symbol.iterator]();
+
+			function next() {
+				const { value: handler, done } = handlers.next();
+
+				if (done) {
+					handle_notfound();
+				} else if (handler.type === 'page') {
+					render_page(handler.module.render({
+						status: statusCode,
+						error
+					}, {
+						store: store_getter && store_getter(req)
+					}));
+				} else {
+					const handle_method = mod[method_export];
+					if (handle_method) {
+						handle_method(req, res, next);
+					} else {
+						next();
+					}
+				}
+			}
+
+			next();
+		} else {
+			handle_notfound();
+		}
+	}
+
+	return function find_route(req: Req, res: ServerResponse) {
+		for (const route of routes) {
+			if (!route.error && route.pattern.test(req.path)) return handle_route(route, req, res);
+		}
+
+		handle_error(req, res, 404, 'Not found');
+	};
+}
+
+function compose_handlers(handlers: Handler[]) {
+	return (req: Req, res: ServerResponse, next: () => void) => {
+		let i = 0;
+		function go() {
+			const handler = handlers[i];
+
+			if (handler) {
+				handler(req, res, () => {
+					i += 1;
+					go();
+				});
+			} else {
+				next();
+			}
+		}
+
+		go();
+	};
+}
+
+function read_json(file: string) {
+	return JSON.parse(fs.readFileSync(file, 'utf-8'));
+}
+
+function try_serialize(data: any) {
+	try {
+		return devalue(data);
+	} catch (err) {
+		return null;
+	}
+}

src/middleware/index.ts

@@ -1,348 +0,0 @@
-import * as fs from 'fs';
-import * as path from 'path';
-import { ClientRequest, ServerResponse } from 'http';
-import mkdirp from 'mkdirp';
-import rimraf from 'rimraf';
-import serialize from 'serialize-javascript';
-import escape_html from 'escape-html';
-import { lookup } from './mime';
-import { create_routes, templates, create_compilers } from 'sapper/core.js';
-import { dest, dev } from '../config';
-import { Route, Template } from '../interfaces';
-import sourceMapSupport from 'source-map-support';
-
-sourceMapSupport.install();
-
-type RouteObject = {
-	id: string;
-	type: 'page' | 'route';
-	pattern: RegExp;
-	params: (match: RegExpMatchArray) => Record<string, string>;
-	module: {
-		render: (data: any) => {
-			head: string;
-			css: { code: string, map: any };
-			html: string
-		},
-		preload: (data: any) => any | Promise<any>
-	};
-	error?: string;
-}
-
-type Handler = (req: Req, res: ServerResponse, next: () => void) => void;
-
-interface Req extends ClientRequest {
-	url: string;
-	method: string;
-	pathname: string;
-	params: Record<string, string>;
-}
-
-export default function middleware({ routes }: {
-	routes: RouteObject[]
-}) {
-	const output = dest();
-
-	const client_info = JSON.parse(fs.readFileSync(path.join(output, 'client_info.json'), 'utf-8'));
-
-	const middleware = compose_handlers([
-		(req: Req, res: ServerResponse, next: () => void) => {
-			req.pathname = req.url.replace(/\?.*/, '');
-			next();
-		},
-
-		exists(path.join(output, 'index.html')) && serve({
-			pathname: '/index.html',
-			cache_control: 'max-age=600'
-		}),
-
-		exists(path.join(output, 'service-worker.js')) && serve({
-			pathname: '/service-worker.js',
-			cache_control: 'max-age=600'
-		}),
-
-		serve({
-			prefix: '/client/',
-			cache_control: 'max-age=31536000'
-		}),
-
-		get_route_handler(client_info.assetsByChunkName, routes)
-	].filter(Boolean));
-
-	return middleware;
-}
-
-function serve({ prefix, pathname, cache_control }: {
-	prefix?: string,
-	pathname?: string,
-	cache_control: string
-}) {
-	const filter = pathname
-		? (req: Req) => req.pathname === pathname
-		: (req: Req) => req.pathname.startsWith(prefix);
-
-	const output = dest();
-
-	const cache: Map<string, Buffer> = new Map();
-
-	const read = dev()
-		? (file: string) => fs.readFileSync(path.resolve(output, file))
-		: (file: string) => (cache.has(file) ? cache : cache.set(file, fs.readFileSync(path.resolve(output, file)))).get(file)
-
-	return (req: Req, res: ServerResponse, next: () => void) => {
-		if (filter(req)) {
-			const type = lookup(req.pathname);
-
-			try {
-				const data = read(req.pathname.slice(1));
-
-				res.setHeader('Content-Type', type);
-				res.setHeader('Cache-Control', cache_control);
-				res.end(data);
-			} catch (err) {
-				res.statusCode = 404;
-				res.end('not found');
-			}
-		} else {
-			next();
-		}
-	};
-}
-
-const resolved = Promise.resolve();
-
-function get_route_handler(chunks: Record<string, string>, routes: RouteObject[]) {
-	const template = dev()
-		? () => fs.readFileSync('app/template.html', 'utf-8')
-		: (str => () => str)(fs.readFileSync('app/template.html', 'utf-8'));
-
-	function handle_route(route: RouteObject, req: Req, res: ServerResponse) {
-		req.params = route.params(route.pattern.exec(req.pathname));
-
-		const mod = route.module;
-
-		if (route.type === 'page') {
-			res.setHeader('Content-Type', 'text/html');
-
-			// preload main.js and current route
-			// TODO detect other stuff we can preload? images, CSS, fonts?
-			const link = []
-				.concat(chunks.main, chunks[route.id])
-				.map(file => `</client/${file}>;rel="preload";as="script"`)
-				.join(', ');
-
-			res.setHeader('Link', link);
-
-			const data = { params: req.params, query: req.query };
-
-			let redirect: { statusCode: number, location: string };
-			let error: { statusCode: number, message: Error | string };
-
-			Promise.resolve(
-				mod.preload ? mod.preload.call({
-					redirect: (statusCode: number, location: string) => {
-						redirect = { statusCode, location };
-					},
-					error: (statusCode: number, message: Error | string) => {
-						error = { statusCode, message };
-					}
-				}, req) : {}
-			).catch(err => {
-				error = { statusCode: 500, message: err };
-			}).then(preloaded => {
-				if (redirect) {
-					res.statusCode = redirect.statusCode;
-					res.setHeader('Location', redirect.location);
-					res.end();
-
-					return;
-				}
-
-				if (error) {
-					handle_error(req, res, error.statusCode, error.message);
-					return;
-				}
-
-				const serialized = try_serialize(preloaded); // TODO bail on non-POJOs
-				Object.assign(data, preloaded);
-
-				const { html, head, css } = mod.render(data);
-
-				let scripts = []
-					.concat(chunks.main) // chunks main might be an array. it might not! thanks, webpack
-					.map(file => `<script src='/client/${file}'></script>`)
-					.join('');
-
-				scripts = `<script>__SAPPER__ = { preloaded: ${serialized} };</script>${scripts}`;
-
-				const page = template()
-					.replace('%sapper.scripts%', scripts)
-					.replace('%sapper.html%', html)
-					.replace('%sapper.head%', `<noscript id='sapper-head-start'></noscript>${head}<noscript id='sapper-head-end'></noscript>`)
-					.replace('%sapper.styles%', (css && css.code ? `<style>${css.code}</style>` : ''));
-
-				res.end(page);
-
-				if (process.send) {
-					process.send({
-						__sapper__: true,
-						url: req.url,
-						method: req.method,
-						status: 200,
-						type: 'text/html',
-						body: page
-					});
-				}
-			});
-		}
-
-		else {
-			const method = req.method.toLowerCase();
-			// 'delete' cannot be exported from a module because it is a keyword,
-			// so check for 'del' instead
-			const method_export = method === 'delete' ? 'del' : method;
-			const handler = mod[method_export];
-			if (handler) {
-				if (process.env.SAPPER_EXPORT) {
-					const { write, end, setHeader } = res;
-					const chunks: any[] = [];
-					const headers: Record<string, string> = {};
-
-					// intercept data so that it can be exported
-					res.write = function(chunk: any) {
-						chunks.push(new Buffer(chunk));
-						write.apply(res, arguments);
-					};
-
-					res.setHeader = function(name: string, value: string) {
-						headers[name.toLowerCase()] = value;
-						setHeader.apply(res, arguments);
-					};
-
-					res.end = function(chunk?: any) {
-						if (chunk) chunks.push(new Buffer(chunk));
-						end.apply(res, arguments);
-
-						process.send({
-							__sapper__: true,
-							url: req.url,
-							method: req.method,
-							status: res.statusCode,
-							type: headers['content-type'],
-							body: Buffer.concat(chunks).toString()
-						});
-					};
-				}
-
-				const handle_bad_result = (err?: Error) => {
-					if (err) {
-						console.error(err.stack);
-						res.statusCode = 500;
-						res.end(err.message);
-					} else {
-						handle_error(req, res, 404, 'Not found');
-					}
-				};
-
-				try {
-					handler(req, res, handle_bad_result);
-				} catch (err) {
-					handle_bad_result(err);
-				}
-			} else {
-				// no matching handler for method — 404
-				handle_error(req, res, 404, 'Not found');
-			}
-		}
-	}
-
-	const not_found_route = routes.find((route: RouteObject) => route.error === '4xx');
-	const error_route = routes.find((route: RouteObject) => route.error === '5xx');
-
-	function handle_error(req: Req, res: ServerResponse, statusCode: number, message: Error | string) {
-		res.statusCode = statusCode;
-		res.setHeader('Content-Type', 'text/html');
-
-		const error = message instanceof Error ? message : new Error(message);
-
-		const not_found = statusCode >= 400 && statusCode < 500;
-
-		const route = not_found
-			? not_found_route
-			: error_route;
-
-		const title: string = not_found
-			? 'Not found'
-			: `Internal server error: ${error.message}`;
-
-		const rendered = route ? route.module.render({
-			status: statusCode,
-			error
-		}) : { head: '', css: null, html: title };
-
-		const { head, css, html } = rendered;
-
-		const page = template()
-			.replace('%sapper.scripts%', `<script src='/client/${chunks.main}'></script>`)
-			.replace('%sapper.html%', html)
-			.replace('%sapper.head%', `<noscript id='sapper-head-start'></noscript>${head}<noscript id='sapper-head-end'></noscript>`)
-			.replace('%sapper.styles%', (css && css.code ? `<style>${css.code}</style>` : ''));
-
-		res.end(page);
-	}
-
-	return function find_route(req: Req, res: ServerResponse) {
-		const url = req.pathname;
-
-		try {
-			for (const route of routes) {
-				if (!route.error && route.pattern.test(url)) return handle_route(route, req, res);
-			}
-
-			handle_error(req, res, 404, 'Not found');
-		} catch (error) {
-			handle_error(req, res, 500, error);
-		}
-	};
-}
-
-function compose_handlers(handlers: Handler[]) {
-	return (req: Req, res: ServerResponse, next: () => void) => {
-		let i = 0;
-		function go() {
-			const handler = handlers[i];
-
-			if (handler) {
-				handler(req, res, () => {
-					i += 1;
-					go();
-				});
-			} else {
-				next();
-			}
-		}
-
-		go();
-	};
-}
-
-function read_json(file: string) {
-	return JSON.parse(fs.readFileSync(file, 'utf-8'));
-}
-
-function try_serialize(data: any) {
-	try {
-		return serialize(data);
-	} catch (err) {
-		return null;
-	}
-}
-
-function exists(file: string) {
-	try {
-		fs.statSync(file);
-		return true;
-	} catch (err) {
-		return false;
-	}
-}

src/middleware/mime-types.md

@@ -29,7 +29,7 @@ application/java-archive			jar
 application/java-serialized-object		ser
 application/java-vm				class
 application/javascript				js
-application/json				json
+application/json				json map
 application/jsonml+json				jsonml
 application/lost+xml				lostxml
 application/mac-binhex40			hqx

src/runtime/index.ts

@@ -1,8 +1,12 @@
 import { detach, findAnchor, scroll_state, which } from './utils';
-import { Component, ComponentConstructor, Params, Query, Route, RouteData, ScrollPosition, Target } from './interfaces';
+import { Component, ComponentConstructor, Params, Query, Route, RouteData, ScrollPosition, Store, Target } from './interfaces';
 
+const manifest = typeof window !== 'undefined' && window.__SAPPER__;
+
+export let App: ComponentConstructor;
 export let component: Component;
 let target: Node;
+let store: Store;
 let routes: Route[];
 let errors: { '4xx': Route, '5xx': Route };
 
@@ -22,9 +26,12 @@ if ('scrollRestoration' in history) {
 
 function select_route(url: URL): Target {
 	if (url.origin !== window.location.origin) return null;
+	if (!url.pathname.startsWith(manifest.baseUrl)) return null;
+
+	const path = url.pathname.slice(manifest.baseUrl.length);
 
 	for (const route of routes) {
-		const match = route.pattern.exec(url.pathname);
+		const match = route.pattern.exec(path);
 		if (match) {
 			if (route.ignore) return null;
 
@@ -37,18 +44,24 @@ function select_route(url: URL): Target {
 					query[key] = value || true;
 				})
 			}
-			return { url, route, data: { params, query } };
+			return { url, route, props: { params, query, path } };
 		}
 	}
 }
 
 let current_token: {};
 
-function render(Component: ComponentConstructor, data: any, scroll: ScrollPosition, token: {}) {
+function render(Page: ComponentConstructor, props: any, scroll: ScrollPosition, token: {}) {
 	if (current_token !== token) return;
 
+	const data = {
+		Page,
+		props,
+		preloading: false
+	};
+
 	if (component) {
-		component.destroy();
+		component.set(data);
 	} else {
 		// first load — remove SSR'd <head> contents
 		const start = document.querySelector('#sapper-head-start');
@@ -59,39 +72,48 @@ function render(Component: ComponentConstructor, data: any, scroll: ScrollPositi
 			detach(start);
 			detach(end);
 		}
-	}
 
-	component = new Component({
-		target,
-		data,
-		hydrate: !component
-	});
+		component = new App({
+			target,
+			data,
+			store,
+			hydrate: true
+		});
+	}
 
 	if (scroll) {
 		window.scrollTo(scroll.x, scroll.y);
 	}
 }
 
-function prepare_route(Component: ComponentConstructor, data: RouteData) {
+function prepare_route(Page: ComponentConstructor, props: RouteData) {
 	let redirect: { statusCode: number, location: string } = null;
 	let error: { statusCode: number, message: Error | string } = null;
 
-	if (!Component.preload) {
-		return { Component, data, redirect, error };
+	if (!Page.preload) {
+		return { Page, props, redirect, error };
 	}
 
-	if (!component && window.__SAPPER__ && window.__SAPPER__.preloaded) {
-		return { Component, data: Object.assign(data, window.__SAPPER__.preloaded), redirect, error };
+	if (!component && manifest.preloaded) {
+		return { Page, props: Object.assign(props, manifest.preloaded), redirect, error };
 	}
 
-	return Promise.resolve(Component.preload.call({
+	if (component) {
+		component.set({
+			preloading: true
+		});
+	}
+
+	return Promise.resolve(Page.preload.call({
+		store,
+		fetch: (url: string, opts?: any) => window.fetch(url, opts),
 		redirect: (statusCode: number, location: string) => {
 			redirect = { statusCode, location };
 		},
 		error: (statusCode: number, message: Error | string) => {
 			error = { statusCode, message };
 		}
-	}, data)).catch(err => {
+	}, props)).catch(err => {
 		error = { statusCode: 500, message: err };
 	}).then(preloaded => {
 		if (error) {
@@ -99,15 +121,15 @@ function prepare_route(Component: ComponentConstructor, data: RouteData) {
 				? errors['4xx']
 				: errors['5xx'];
 
-			return route.load().then(({ default: Component }: { default: ComponentConstructor }) => {
+			return route.load().then(({ default: Page }: { default: ComponentConstructor }) => {
 				const err = error.message instanceof Error ? error.message : new Error(error.message);
-				Object.assign(data, { status: error.statusCode, error: err });
-				return { Component, data, redirect: null };
+				Object.assign(props, { status: error.statusCode, error: err });
+				return { Page, props, redirect: null };
 			});
 		}
 
-		Object.assign(data, preloaded)
-		return { Component, data, redirect };
+		Object.assign(props, preloaded)
+		return { Page, props, redirect };
 	});
 }
 
@@ -127,18 +149,18 @@ function navigate(target: Target, id: number) {
 
 	const loaded = prefetching && prefetching.href === target.url.href ?
 		prefetching.promise :
-		target.route.load().then(mod => prepare_route(mod.default, target.data));
+		target.route.load().then(mod => prepare_route(mod.default, target.props));
 
 	prefetching = null;
 
 	const token = current_token = {};
 
-	return loaded.then(({ Component, data, redirect }) => {
+	return loaded.then(({ Page, props, redirect }) => {
 		if (redirect) {
 			return goto(redirect.location, { replaceState: true });
 		}
 
-		render(Component, data, scroll_history[id], token);
+		render(Page, props, scroll_history[id], token);
 	});
 }
 
@@ -199,21 +221,30 @@ function handle_popstate(event: PopStateEvent) {
 
 let prefetching: {
 	href: string;
-	promise: Promise<{ Component: ComponentConstructor, data: any }>;
+	promise: Promise<{ Page: ComponentConstructor, props: any }>;
 } = null;
 
 export function prefetch(href: string) {
-	const selected = select_route(new URL(href));
+	const selected = select_route(new URL(href, document.baseURI));
 
-	if (selected) {
+	if (selected && (!prefetching || href !== prefetching.href)) {
 		prefetching = {
 			href,
-			promise: selected.route.load().then(mod => prepare_route(mod.default, selected.data))
+			promise: selected.route.load().then(mod => prepare_route(mod.default, selected.props))
 		};
 	}
 }
 
-function handle_touchstart_mouseover(event: MouseEvent | TouchEvent) {
+let mousemove_timeout: NodeJS.Timer;
+
+function handle_mousemove(event: MouseEvent) {
+	clearTimeout(mousemove_timeout);
+	mousemove_timeout = setTimeout(() => {
+		trigger_prefetch(event);
+	}, 20);
+}
+
+function trigger_prefetch(event: MouseEvent | TouchEvent) {
 	const a: HTMLAnchorElement = <HTMLAnchorElement>findAnchor(<Node>event.target);
 	if (!a || a.rel !== 'prefetch') return;
 
@@ -222,21 +253,30 @@ function handle_touchstart_mouseover(event: MouseEvent | TouchEvent) {
 
 let inited: boolean;
 
-export function init(_target: Node, _routes: Route[]) {
-	target = _target;
-	routes = _routes.filter(r => !r.error);
+export function init(opts: { App: ComponentConstructor, target: Node, routes: Route[], store?: (data: any) => Store }) {
+	if (opts instanceof HTMLElement) {
+		throw new Error(`The signature of init(...) has changed — see https://sapper.svelte.technology/guide#0-11-to-0-12 for more information`);
+	}
+
+	App = opts.App;
+	target = opts.target;
+	routes = opts.routes.filter(r => !r.error);
 	errors = {
-		'4xx': _routes.find(r => r.error === '4xx'),
-		'5xx': _routes.find(r => r.error === '5xx')
+		'4xx': opts.routes.find(r => r.error === '4xx'),
+		'5xx': opts.routes.find(r => r.error === '5xx')
 	};
 
+	if (opts && opts.store) {
+		store = opts.store(manifest.store);
+	}
+
 	if (!inited) { // this check makes HMR possible
 		window.addEventListener('click', handle_click);
 		window.addEventListener('popstate', handle_popstate);
 
 		// prefetch
-		window.addEventListener('touchstart', handle_touchstart_mouseover);
-		window.addEventListener('mouseover', handle_touchstart_mouseover);
+		window.addEventListener('touchstart', trigger_prefetch);
+		window.addEventListener('mousemove', handle_mousemove);
 
 		inited = true;
 	}
@@ -257,7 +297,8 @@ export function init(_target: Node, _routes: Route[]) {
 }
 
 export function goto(href: string, opts = { replaceState: false }) {
-	const target = select_route(new URL(href, window.location.href));
+	const target = select_route(new URL(href, document.baseURI));
+
 	if (target) {
 		navigate(target, null);
 		if (history) history[opts.replaceState ? 'replaceState' : 'pushState']({ id: cid }, '', href);
@@ -266,7 +307,7 @@ export function goto(href: string, opts = { replaceState: false }) {
 	}
 }
 
-export function preloadRoutes(pathnames: string[]) {
+export function prefetchRoutes(pathnames: string[]) {
 	if (!routes) throw new Error(`You must call init() first`);
 
 	return routes
@@ -281,4 +322,7 @@ export function preloadRoutes(pathnames: string[]) {
 		.reduce((promise: Promise<any>, route) => {
 			return promise.then(route.load);
 		}, Promise.resolve());
-}
+}
+
+// remove this in 0.9
+export { prefetchRoutes as preloadRoutes };

src/runtime/interfaces.ts

@@ -1,10 +1,13 @@
+import { Store } from '../interfaces';
+
+export { Store };
 export type Params = Record<string, string>;
 export type Query = Record<string, string | true>;
-export type RouteData = { params: Params, query: Query };
+export type RouteData = { params: Params, query: Query, path: string };
 
 export interface ComponentConstructor {
-	new (options: { target: Node, data: any, hydrate: boolean }): Component;
-	preload: (data: { params: Params, query: Query }) => Promise<any>;
+	new (options: { target: Node, data: any, store: Store, hydrate: boolean }): Component;
+	preload: (props: { params: Params, query: Query }) => Promise<any>;
 };
 
 export interface Component {
@@ -27,5 +30,5 @@ export type ScrollPosition = {
 export type Target = {
 	url: URL;
 	route: Route;
-	data: RouteData;
+	props: RouteData;
 };

src/webpack.ts

@@ -1,4 +1,4 @@
-import { dest, dev } from '../config';
+import { locations, dev } from './config';
 
 export default {
 	dev: dev(),
@@ -6,16 +6,16 @@ export default {
 	client: {
 		entry: () => {
 			return {
-				main: './app/client.js'
+				main: `${locations.app()}/client`
 			};
 		},
 
 		output: () => {
 			return {
-				path: `${dest()}/client`,
+				path: `${locations.dest()}/client`,
 				filename: '[hash]/[name].js',
 				chunkFilename: '[hash]/[name].[id].js',
-				publicPath: '/client/'
+				publicPath: `client/`
 			};
 		}
 	},
@@ -23,13 +23,13 @@ export default {
 	server: {
 		entry: () => {
 			return {
-				server: './app/server.js'
+				server: `${locations.app()}/server`
 			};
 		},
 
 		output: () => {
 			return {
-				path: dest(),
+				path: locations.dest(),
 				filename: '[name].js',
 				chunkFilename: '[hash]/[name].[id].js',
 				libraryTarget: 'commonjs2'
@@ -40,13 +40,13 @@ export default {
 	serviceworker: {
 		entry: () => {
 			return {
-				'service-worker': './app/service-worker.js'
+				'service-worker': `${locations.app()}/service-worker`
 			};
 		},
 
 		output: () => {
 			return {
-				path: dest(),
+				path: locations.dest(),
 				filename: '[name].js',
 				chunkFilename: '[name].[id].[hash].js'
 			}

test/app/app/App.html

@@ -0,0 +1,6 @@
+{#if preloading}
+	<progress class='preloading-progress' value=0.5/>
+{/if}
+
+<svelte:component this={Page} {...props}/>
+

test/app/app/client.js

@@ -1,8 +1,15 @@
-import { init, preloadRoutes } from '../../../runtime.js';
+import { init, prefetchRoutes } from '../../../runtime.js';
+import { Store } from 'svelte/store.js';
 import { routes } from './manifest/client.js';
+import App from './App.html';
 
 window.init = () => {
-	return init(document.querySelector('#sapper'), routes);
+	return init({
+		target: document.querySelector('#sapper'),
+		App,
+		routes,
+		store: data => new Store(data)
+	});
 };
 
-window.preloadRoutes = preloadRoutes;
+window.prefetchRoutes = prefetchRoutes;

test/app/app/server.js

@@ -1,9 +1,11 @@
 import fs from 'fs';
+import { resolve } from 'url';
 import express from 'express';
-import compression from 'compression';
 import serve from 'serve-static';
-import sapper from '../../../middleware';
+import sapper from '../../../dist/middleware.ts.js';
+import { Store } from 'svelte/store.js';
 import { routes } from './manifest/server.js';
+import App from './App.html'
 
 let pending;
 let ended;
@@ -30,56 +32,75 @@ process.on('message', message => {
 
 const app = express();
 
-app.use((req, res, next) => {
-	if (pending) pending.add(req.url);
-
-	const { write, end } = res;
-	const chunks = [];
-
-	res.write = function(chunk) {
-		chunks.push(new Buffer(chunk));
-		write.apply(res, arguments);
-	};
-
-	res.end = function(chunk) {
-		if (chunk) chunks.push(new Buffer(chunk));
-		end.apply(res, arguments);
-
-		if (pending) pending.delete(req.url);
-
-		process.send({
-			method: req.method,
-			url: req.url,
-			status: res.statusCode,
-			headers: res._headers,
-			body: Buffer.concat(chunks).toString()
-		});
-
-		if (pending && pending.size === 0 && ended) {
-			process.send({ type: 'done' });
-		}
-	};
-
-	next();
-});
-
-const { PORT = 3000 } = process.env;
+const { PORT = 3000, BASEPATH = '' } = process.env;
+const base = `http://localhost:${PORT}${BASEPATH}/`;
 
 // this allows us to do e.g. `fetch('/api/blog')` on the server
 const fetch = require('node-fetch');
 global.fetch = (url, opts) => {
-	if (url[0] === '/') url = `http://localhost:${PORT}${url}`;
-	return fetch(url, opts);
+	return fetch(resolve(base, url), opts);
 };
 
-app.use(compression({ threshold: 0 }));
+const middlewares = [
+	serve('assets'),
 
-app.use(serve('assets'));
+	// set test cookie
+	(req, res, next) => {
+		res.setHeader('Set-Cookie', 'test=woohoo!; Max-Age=3600');
+		next();
+	},
 
-app.use(sapper({
-	routes
-}));
+	// emit messages so we can capture requests
+	(req, res, next) => {
+		if (!pending) return next();
 
-app.listen(PORT, () => {
-	console.log(`listening on port ${PORT}`);
-});
+		pending.add(req.url);
+
+		const { write, end } = res;
+		const chunks = [];
+
+		res.write = function(chunk) {
+			chunks.push(new Buffer(chunk));
+			write.apply(res, arguments);
+		};
+
+		res.end = function(chunk) {
+			if (chunk) chunks.push(new Buffer(chunk));
+			end.apply(res, arguments);
+
+			if (pending) pending.delete(req.url);
+
+			process.send({
+				method: req.method,
+				url: req.url,
+				status: res.statusCode,
+				headers: res._headers,
+				body: Buffer.concat(chunks).toString()
+			});
+
+			if (pending && pending.size === 0 && ended) {
+				process.send({ type: 'done' });
+			}
+		};
+
+		next();
+	},
+
+	sapper({
+		App,
+		routes,
+		store: () => {
+			return new Store({
+				title: 'Stored title'
+			});
+		}
+	})
+];
+
+if (BASEPATH) {
+	app.use(BASEPATH, ...middlewares);
+} else {
+	app.use(...middlewares);
+}
+
+app.listen(PORT);

test/app/app/template.html

@@ -5,15 +5,11 @@
 	<meta name='viewport' content='width=device-width'>
 	<meta name='theme-color' content='#aa1e1e'>
 
-	<link rel='stylesheet' href='/global.css'>
-	<link rel='manifest' href='/manifest.json'>
-	<link rel='icon' type='image/png' href='/favicon.png'>
+	%sapper.base%
 
-	<script>
-		// if ('serviceWorker' in navigator) {
-		// 	navigator.serviceWorker.register('/service-worker.js');
-		// }
-	</script>
+	<link rel='stylesheet' href='global.css'>
+	<link rel='manifest' href='manifest.json'>
+	<link rel='icon' type='image/png' href='favicon.png'>
 
 	<!-- Sapper generates a <style> tag containing critical CSS
 	     for the current page. CSS for the rest of the app is

test/app/package.json

@@ -1,28 +0,0 @@
-{
-  "name": "TODO",
-  "description": "TODO",
-  "version": "0.0.1",
-  "scripts": {
-    "dev": "node server.js",
-    "build": "sapper build",
-    "start": "cross-env NODE_ENV=production node server.js",
-    "prestart": "npm run build"
-  },
-  "dependencies": {
-    "compression": "^1.7.2",
-    "cross-env": "^5.1.3",
-    "css-loader": "^0.28.10",
-    "express": "^4.16.2",
-    "extract-text-webpack-plugin": "^3.0.2",
-    "glob": "^7.1.2",
-    "marked": "^0.3.17",
-    "node-fetch": "^1.7.3",
-    "npm-run-all": "^4.1.2",
-    "serve-static": "^1.13.2",
-    "style-loader": "^0.19.0",
-    "svelte": "^1.56.0",
-    "svelte-loader": "^2.3.3",
-    "uglifyjs-webpack-plugin": "^1.2.2",
-    "webpack": "^4.1.0"
-  }
-}

test/app/routes/4xx.html

@@ -1,18 +1,6 @@
-<:Head>
-	<title>{{status}}</title>
-</:Head>
+<svelte:head>
+	<title>{status}</title>
+</svelte:head>
 
-<Layout page='home'>
-	<h1>Not found</h1>
-	<p>{{error.message}}</p>
-</Layout>
-
-<script>
-	import Layout from './_components/Layout.html';
-
-	export default {
-		components: {
-			Layout
-		}
-	};
-</script>
+<h1>Not found</h1>
+<p>{error.message}</p>

test/app/routes/5xx.html

@@ -1,18 +1,6 @@
-<:Head>
+<svelte:head>
 	<title>Internal server error</title>
-</:Head>
+</svelte:head>
 
-<Layout page='home'>
-	<h1>Internal server error</h1>
-	<p>{{error.message}}</p>
-</Layout>
-
-<script>
-	import Layout from './_components/Layout.html';
-
-	export default {
-		components: {
-			Layout
-		}
-	};
-</script>
+<h1>Internal server error</h1>
+<p>{error.message}</p>

test/app/routes/_components/Layout.html

@@ -1,15 +0,0 @@
-<Nav page={{page}}/>
-
-<main>
-	<slot></slot>
-</main>
-
-<script>
-	import Nav from './Nav.html';
-
-	export default {
-		components: {
-			Nav
-		}
-	};
-</script>

test/app/routes/_components/Nav.html

@@ -1,57 +0,0 @@
-<nav>
-	<ul>
-		<li><a href='/'>home</a></li>
-		<li><a href='/about'>about</a></li>
-		<li><a href='/slow-preload'>slow preload</a></li>
-		<li><a href='/redirect-from'>redirect</a></li>
-		<li><a href='/blog/nope'>broken link</a></li>
-		<li><a href='/blog/throw-an-error'>error link</a></li>
-		<li><a rel=prefetch class='{{page === "blog"  ? "selected" : ""}}' href='/blog'>blog</a></li>
-	</ul>
-</nav>
-
-<style>
-	nav {
-		border-bottom: 1px solid rgba(170,30,30,0.1);
-		font-weight: 300;
-		padding: 0 1em;
-	}
-
-	ul {
-		margin: 0;
-		padding: 0;
-	}
-
-	/* clearfix */
-	ul::after {
-		content: '';
-		display: block;
-		clear: both;
-	}
-
-	li {
-		display: block;
-		float: left;
-	}
-
-	.selected {
-		position: relative;
-		display: inline-block;
-	}
-
-	.selected::after {
-		position: absolute;
-		content: '';
-		width: calc(100% - 1em);
-		height: 2px;
-		background-color: rgb(170,30,30);
-		display: block;
-		bottom: -1px;
-	}
-
-	a {
-		text-decoration: none;
-		padding: 1em 0.5em;
-		display: block;
-	}
-</style>

test/app/routes/about.html

@@ -1,25 +1,18 @@
-<:Head>
+<svelte:head>
 	<title>About</title>
-</:Head>
+</svelte:head>
 
-<Layout page='about'>
-	<h1>About this site</h1>
+<h1>About this site</h1>
 
-	<p>This is the 'about' page. There's not much here.</p>
+<p>This is the 'about' page. There's not much here.</p>
 
-	<button class='goto' on:click='goto("/blog/what-is-sapper")'>What is Sapper?</button>
-	<button class='prefetch' on:click='goto("/blog/why-the-name")'>Why the name?</button>
-</Layout>
+<button class='goto' on:click='goto("blog/what-is-sapper")'>What is Sapper?</button>
+<button class='prefetch' on:click='prefetch("blog/why-the-name")'>Why the name?</button>
 
 <script>
-	import Layout from './_components/Layout.html';
 	import { goto, prefetch } from '../../../runtime.js';
 
 	export default {
-		components: {
-			Layout
-		},
-
 		methods: {
 			goto,
 			prefetch

test/app/routes/api/delete/[id].js

@@ -1,5 +1,5 @@
 export function del(req, res) {
-	res.set({
+	res.writeHead(200, {
 		'Content-Type': 'application/json'
 	});
 

test/app/routes/blog.json.js

@@ -8,7 +8,7 @@ const contents = JSON.stringify(posts.map(post => {
 }));
 
 export function get(req, res) {
-	res.set({
+	res.writeHead(200, {
 		'Content-Type': 'application/json',
 		'Cache-Control': `max-age=${30 * 60 * 1e3}` // cache for 30 minutes
 	});

test/app/routes/blog/[slug].html

@@ -1,59 +1,15 @@
-<:Head>
-	<title>{{post.title}}</title>
-</:Head>
+<svelte:head>
+	<title>{post.title}</title>
+</svelte:head>
 
-<Layout page='blog'>
-	<h1>{{post.title}}</h1>
+<h1>{post.title}</h1>
 
-	<div class='content'>
-		{{{post.html}}}
-	</div>
-</Layout>
-
-<style>
-	/*
-		By default, CSS is locally scoped to the component,
-		and any unused styles are dead-code-eliminated.
-		In this page, Svelte can't know which elements are
-		going to appear inside the {{{post.html}}} block,
-		so we have to use the :global(...) modifier to target
-		all elements inside .content
-	*/
-	.content :global(h2) {
-		font-size: 1.4em;
-		font-weight: 500;
-	}
-
-	.content :global(pre) {
-		background-color: #f9f9f9;
-		box-shadow: inset 1px 1px 5px rgba(0,0,0,0.05);
-		padding: 0.5em;
-		border-radius: 2px;
-		overflow-x: auto;
-	}
-
-	.content :global(pre) :global(code) {
-		background-color: transparent;
-		padding: 0;
-	}
-
-	.content :global(ul) {
-		line-height: 1.5;
-	}
-
-	.content :global(li) {
-		margin: 0 0 0.5em 0;
-	}
-</style>
+<div class='content'>
+	{@html post.html}
+</div>
 
 <script>
-	import Layout from '../_components/Layout.html';
-
 	export default {
-		components: {
-			Layout
-		},
-
 		preload({ params, query }) {
 			// the `slug` parameter is available because this file
 			// is called [slug].html
@@ -63,7 +19,7 @@
 				return this.error(500, 'something went wrong');
 			}
 
-			return fetch(`/blog/${slug}.json`).then(r => {
+			return fetch(`blog/${slug}.json`).then(r => {
 				if (r.status === 200) {
 					return r.json().then(post => ({ post }));
 					this.error(r.status, '')

test/app/routes/blog/[slug].json.js

@@ -11,7 +11,7 @@ export function get(req, res, next) {
 	const { slug } = req.params;
 
 	if (slug in lookup) {
-		res.set({
+		res.writeHead(200, {
 			'Content-Type': 'application/json',
 			'Cache-Control': `no-cache`
 		});

test/app/routes/blog/_posts.js

@@ -14,7 +14,7 @@ const posts = [
 		html: `
 			<p>First, you have to know what <a href='https://svelte.technology'>Svelte</a> is. Svelte is a UI framework with a bold new idea: rather than providing a library that you write code with (like React or Vue, for example), it's a compiler that turns your components into highly optimized vanilla JavaScript. If you haven't already read the <a href='https://svelte.technology/blog/frameworks-without-the-framework'>introductory blog post</a>, you should!</p>
 
-			<p>Sapper is a Next.js-style framework (<a href='/blog/how-is-sapper-different-from-next'>more on that here</a>) built around Svelte. It makes it embarrassingly easy to create extremely high performance web apps. Out of the box, you get:</p>
+			<p>Sapper is a Next.js-style framework (<a href='blog/how-is-sapper-different-from-next'>more on that here</a>) built around Svelte. It makes it embarrassingly easy to create extremely high performance web apps. Out of the box, you get:</p>
 
 			<ul>
 				<li>Code-splitting, dynamic imports and hot module replacement, powered by webpack</li>
@@ -70,8 +70,8 @@ const posts = [
 			<ul>
 				<li>It's powered by <a href='https://svelte.technology'>Svelte</a> instead of React, so it's faster and your apps are smaller</li>
 				<li>Instead of route masking, we encode route parameters in filenames. For example, the page you're looking at right now is <code>routes/blog/[slug].html</code></li>
-				<li>As well as pages (Svelte components, which render on server or client), you can create <em>server routes</em> in your <code>routes</code> directory. These are just <code>.js</code> files that export functions corresponding to HTTP methods, and receive Express <code>request</code> and <code>response</code> objects as arguments. This makes it very easy to, for example, add a JSON API such as the one <a href='/blog/how-is-sapper-different-from-next.json'>powering this very page</a></li>
-				<li>Links are just <code>&lt;a&gt;</code> elements, rather than framework-specific <code>&lt;Link&gt;</code> components. That means, for example, that <a href='/blog/how-can-i-get-involved'>this link right here</a>, despite being inside a blob of HTML, works with the router as you'd expect.</li>
+				<li>As well as pages (Svelte components, which render on server or client), you can create <em>server routes</em> in your <code>routes</code> directory. These are just <code>.js</code> files that export functions corresponding to HTTP methods, and receive Express <code>request</code> and <code>response</code> objects as arguments. This makes it very easy to, for example, add a JSON API such as the one <a href='blog/how-is-sapper-different-from-next.json'>powering this very page</a></li>
+				<li>Links are just <code>&lt;a&gt;</code> elements, rather than framework-specific <code>&lt;Link&gt;</code> components. That means, for example, that <a href='blog/how-can-i-get-involved'>this link right here</a>, despite being inside a blob of HTML, works with the router as you'd expect.</li>
 			</ul>
 		`
 	},

test/app/routes/blog/index.html

@@ -1,38 +1,23 @@
-<:Head>
+<svelte:head>
 	<title>Blog</title>
-</:Head>
+</svelte:head>
 
-<Layout page='blog'>
-	<h1>Recent posts</h1>
+<h1>Recent posts</h1>
 
-	<ul>
-		{{#each posts as post}}
-			<!-- we're using the non-standard `rel=prefetch` attribute to
-			     tell Sapper to load the data for the page as soon as
-			     the user hovers over the link or taps it, instead of
-			     waiting for the 'click' event -->
-			<li><a rel='prefetch' href='/blog/{{post.slug}}'>{{post.title}}</a></li>
-		{{/each}}
-	</ul>
-</Layout>
-
-<style>
-	ul {
-		margin: 0 0 1em 0;
-		line-height: 1.5;
-	}
-</style>
+<ul>
+	{#each posts as post}
+		<!-- we're using the non-standard `rel=prefetch` attribute to
+				tell Sapper to load the data for the page as soon as
+				the user hovers over the link or taps it, instead of
+				waiting for the 'click' event -->
+		<li><a rel='prefetch' href='blog/{post.slug}'>{post.title}</a></li>
+	{/each}
+</ul>
 
 <script>
-	import Layout from '../_components/Layout.html';
-
 	export default {
-		components: {
-			Layout
-		},
-
 		preload({ params, query }) {
-			return fetch(`/blog.json`).then(r => r.json()).then(posts => {
+			return fetch(`blog.json`).then(r => r.json()).then(posts => {
 				return { posts };
 			});
 		}

test/app/routes/credentials/index.html

@@ -0,0 +1,11 @@
+<h1>{message}</h1>
+
+<script>
+	export default {
+		preload({ query }) {
+			return this.fetch(`credentials/test.json`, {
+				credentials: query.creds
+			}).then(r => r.json());
+		}
+	};
+</script>

test/app/routes/credentials/test.json.js

@@ -0,0 +1,28 @@
+export function get(req, res) {
+	const cookies = req.headers.cookie
+		? req.headers.cookie.split(/,\s+/).reduce((cookies, cookie) => {
+			const [pair] = cookie.split('; ');
+			const [name, value] = pair.split('=');
+			cookies[name] = value;
+			return cookies;
+		}, {})
+		: {};
+
+	if (cookies.test) {
+		res.writeHead(200, {
+			'Content-Type': 'application/json'
+		});
+
+		res.end(JSON.stringify({
+			message: cookies.test
+		}));
+	} else {
+		res.writeHead(403, {
+			'Content-Type': 'application/json'
+		});
+
+		res.end(JSON.stringify({
+			message: 'unauthorized'
+		}));
+	}
+}

test/app/routes/delete-test.html

@@ -4,7 +4,7 @@
 	export default {
 		methods: {
 			del() {
-				fetch(`/api/delete/42`, { method: 'DELETE' })
+				fetch(`api/delete/42`, { method: 'DELETE' })
 					.then(r => r.json())
 					.then(data => {
 						window.deleted = data;

test/app/routes/index.html

@@ -1,60 +1,26 @@
-<:Head>
+<svelte:head>
 	<title>Sapper project template</title>
-</:Head>
+</svelte:head>
 
-<Layout page='home'>
-	<h1>Great success!</h1>
+<h1>Great success!</h1>
 
-	<figure>
-		<img alt='borat' src='/great-success.png'>
-		<figcaption>HIGH FIVE!</figcaption>
-	</figure>
-
-	<p><strong>Try editing this file (routes/index.html) to test hot module reloading.</strong></p>
-</Layout>
+<a href='.'>home</a>
+<a href='about'>about</a>
+<a href='slow-preload'>slow preload</a>
+<a href='redirect-from'>redirect</a>
+<a href='blog/nope'>broken link</a>
+<a href='blog/throw-an-error'>error link</a>
+<a href='credentials?creds=include'>credentials</a>
+<a rel=prefetch class='{page === "blog"  ? "selected" : ""}' href='blog'>blog</a>
 
 <div class='hydrate-test'></div>
 
 <style>
-	h1, figure, p {
-		text-align: center;
-		margin: 0 auto;
-	}
-
 	h1 {
+		text-align: center;
 		font-size: 2.8em;
 		text-transform: uppercase;
 		font-weight: 700;
 		margin: 0 0 0.5em 0;
 	}
-
-	figure {
-		margin: 0 0 1em 0;
-	}
-
-	img {
-		width: 100%;
-		max-width: 400px;
-		margin: 0 0 1em 0;
-	}
-
-	p {
-		margin: 1em auto;
-	}
-
-	@media (min-width: 480px) {
-		h1 {
-			font-size: 4em;
-		}
-	}
-</style>
-
-<script>
-	import Layout from './_components/Layout.html';
-
-	export default {
-		components: {
-			Layout
-		}
-	};
-</script>
+</style>

test/app/routes/preload-values/custom-class.html

@@ -0,0 +1,17 @@
+<h1>{foo.bar()}</h1>
+
+<script>
+	export default {
+		preload() {
+			class Foo {
+				bar() {
+					return 42;
+				}
+			}
+
+			return {
+				foo: new Foo()
+			};
+		}
+	};
+</script>

test/app/routes/preload-values/set.html

@@ -0,0 +1,11 @@
+<h1>{set.has('x')}</h1>
+
+<script>
+	export default {
+		preload() {
+			return {
+				set: new Set(['x'])
+			};
+		}
+	};
+</script>

test/app/routes/redirect-from.html

@@ -1,7 +1,7 @@
 <script>
 	export default {
 		preload() {
-			this.redirect(301, '/redirect-to');
+			this.redirect(301, 'redirect-to');
 		}
 	};
 </script>

test/app/routes/show-url.html

@@ -1,4 +1,4 @@
-<p>URL is {{url}}</p>
+<p>URL is {url}</p>
 
 <script>
 	export default {

test/app/routes/store.html

@@ -0,0 +1 @@
+<h1>{$title}</h1>

test/app/webpack/server.config.js

@@ -1,5 +1,4 @@
 const config = require('../../../webpack/config.js');
-const pkg = require('../package.json');
 const sapper_pkg = require('../../../package.json');
 
 module.exports = {
@@ -9,7 +8,10 @@ module.exports = {
 	resolve: {
 		extensions: ['.js', '.html']
 	},
-	externals: Object.keys(pkg.dependencies).concat(Object.keys(sapper_pkg.dependencies)),
+	externals: [].concat(
+		Object.keys(sapper_pkg.dependencies),
+		Object.keys(sapper_pkg.devDependencies)
+	),
 	module: {
 		rules: [
 			{

test/common/test.js

@@ -1,19 +1,22 @@
+const fs = require('fs');
 const path = require('path');
 const assert = require('assert');
 const Nightmare = require('nightmare');
-const express = require('express');
 const serve = require('serve-static');
 const walkSync = require('walk-sync');
 const fetch = require('node-fetch');
-
-run('production');
-run('development');
+const rimraf = require('rimraf');
+const ports = require('port-authority');
 
 Nightmare.action('page', {
 	title(done) {
 		this.evaluate_now(() => document.querySelector('h1').textContent, done);
 	},
 
+	html(done) {
+		this.evaluate_now(() => document.documentElement.innerHTML, done);
+	},
+
 	text(done) {
 		this.evaluate_now(() => document.body.textContent, done);
 	}
@@ -23,44 +26,152 @@ Nightmare.action('init', function(done) {
 	this.evaluate_now(() => window.init(), done);
 });
 
-Nightmare.action('preloadRoutes', function(done) {
-	this.evaluate_now(() => window.preloadRoutes(), done);
+Nightmare.action('prefetchRoutes', function(done) {
+	this.evaluate_now(() => window.prefetchRoutes(), done);
 });
 
-function run(env) {
-	describe(`env=${env}`, function () {
-		this.timeout(30000);
+const cli = path.resolve(__dirname, '../../sapper');
 
-		let PORT;
+describe('sapper', function() {
+	process.chdir(path.resolve(__dirname, '../app'));
+
+	// clean up after previous test runs
+	rimraf.sync('export');
+	rimraf.sync('build');
+	rimraf.sync('.sapper');
+	rimraf.sync('start.js');
+
+	this.timeout(process.env.CI ? 30000 : 10000);
+
+	// TODO reinstate dev tests
+	// run({
+	// 	mode: 'development'
+	// });
+
+	run({
+		mode: 'production'
+	});
+
+	run({
+		mode: 'production',
+		basepath: '/custom-basepath'
+	});
+
+	describe('export', () => {
+		before(() => {
+			return exec(`node ${cli} export`);
+		});
+
+		it('export all pages', () => {
+			const dest = path.resolve(__dirname, '../app/export');
+
+			// Pages that should show up in the extraction directory.
+			const expectedPages = [
+				'index.html',
+				'about/index.html',
+				'slow-preload/index.html',
+
+				'blog/index.html',
+				'blog/a-very-long-post/index.html',
+				'blog/how-can-i-get-involved/index.html',
+				'blog/how-is-sapper-different-from-next/index.html',
+				'blog/how-to-use-sapper/index.html',
+				'blog/what-is-sapper/index.html',
+				'blog/why-the-name/index.html',
+
+				'blog.json',
+				'blog/a-very-long-post.json',
+				'blog/how-can-i-get-involved.json',
+				'blog/how-is-sapper-different-from-next.json',
+				'blog/how-to-use-sapper.json',
+				'blog/what-is-sapper.json',
+				'blog/why-the-name.json',
+
+				'favicon.png',
+				'global.css',
+				'great-success.png',
+				'manifest.json',
+				'service-worker.js',
+				'svelte-logo-192.png',
+				'svelte-logo-512.png',
+			];
+			// Client scripts that should show up in the extraction directory.
+			const expectedClientRegexes = [
+				/client\/[^/]+\/_(\.\d+)?\.js/,
+				/client\/[^/]+\/about(\.\d+)?\.js/,
+				/client\/[^/]+\/blog_\$slug\$(\.\d+)?\.js/,
+				/client\/[^/]+\/blog(\.\d+)?\.js/,
+				/client\/[^/]+\/main(\.\d+)?\.js/,
+				/client\/[^/]+\/show_url(\.\d+)?\.js/,
+				/client\/[^/]+\/slow_preload(\.\d+)?\.js/,
+			];
+			const allPages = walkSync(dest);
+
+			expectedPages.forEach((expectedPage) => {
+				assert.ok(allPages.includes(expectedPage),`Could not find page matching ${expectedPage}`);
+			});
+
+			expectedClientRegexes.forEach((expectedRegex) => {
+				// Ensure each client page regular expression matches at least one
+				// generated page.
+				let matched = false;
+				for (const page of allPages) {
+					if (expectedRegex.test(page)) {
+						matched = true;
+						break;
+					}
+				}
+				assert.ok(matched, `Could not find client page matching ${expectedRegex}`);
+			});
+		});
+	});
+});
+
+function run({ mode, basepath = '' }) {
+	describe(`mode=${mode}`, function () {
 		let proc;
-		let nightmare;
 		let capture;
 
 		let base;
 
-		before(() => {
-			process.chdir(path.resolve(__dirname, '../app'));
+		const nightmare = new Nightmare();
 
-			let exec_promise = Promise.resolve();
+		nightmare.on('console', (type, ...args) => {
+			console[type](...args);
+		});
 
-			if (env === 'production') {
-				const cli = path.resolve(__dirname, '../../cli.js');
-				exec_promise = exec(`node ${cli} export`);
+		nightmare.on('page', (type, ...args) => {
+			if (type === 'error') {
+				console.error(args[1]);
+			} else {
+				console.warn(type, args);
 			}
+		});
 
-			return exec_promise.then(() => {
-				const resolved = require.resolve('../../middleware.js');
-				delete require.cache[resolved];
-				delete require.cache[require.resolve('../../core.js')]; // TODO remove this
+		before(() => {
+			const promise = mode === 'production'
+				? exec(`node ${cli} build -l`).then(() => ports.find(3000))
+				: ports.find(3000).then(port => {
+					exec(`node ${cli} dev`);
+					return ports.wait(port).then(() => port);
+				});
 
-				return require('get-port')();
-			}).then(port => {
+			return promise.then(port => {
 				base = `http://localhost:${port}`;
+				if (basepath) base += basepath;
 
-				proc = require('child_process').fork('.sapper/server.js', {
+				const dir = mode === 'production' ? 'build' : '.sapper';
+
+				if (mode === 'production') {
+					assert.ok(fs.existsSync('build/index.js'));
+				}
+
+				proc = require('child_process').fork(`${dir}/server.js`, {
 					cwd: process.cwd(),
 					env: {
-						NODE_ENV: env,
+						NODE_ENV: mode,
+						BASEPATH: basepath,
+						SAPPER_DEST: dir,
 						PORT: port
 					}
 				});
@@ -107,30 +218,13 @@ function run(env) {
 
 		after(() => {
 			// give a chance to clean up
-			return new Promise(fulfil => {
-				proc.on('exit', fulfil);
-				proc.kill();
-			});
-		});
-
-		beforeEach(() => {
-			nightmare = new Nightmare();
-
-			nightmare.on('console', (type, ...args) => {
-				console[type](...args);
-			});
-
-			nightmare.on('page', (type, ...args) => {
-				if (type === 'error') {
-					console.error(args[1]);
-				} else {
-					console.warn(type, args);
-				}
-			});
-		});
-
-		afterEach(() => {
-			return nightmare.end();
+			return Promise.all([
+				nightmare.end(),
+				new Promise(fulfil => {
+					proc.on('exit', fulfil);
+					proc.kill();
+				})
+			]);
 		});
 
 		describe('basic functionality', () => {
@@ -159,16 +253,16 @@ function run(env) {
 			});
 
 			it('navigates to a new page without reloading', () => {
-				return capture(() => nightmare.goto(base).init().preloadRoutes())
+				return nightmare.goto(base).init().prefetchRoutes()
 					.then(() => {
-						return capture(() => nightmare.click('a[href="/about"]'));
+						return capture(() => nightmare.click('a[href="about"]'));
 					})
 					.then(requests => {
 						assert.deepEqual(requests.map(r => r.url), []);
 						return nightmare.path();
 					})
 					.then(path => {
-						assert.equal(path, '/about');
+						assert.equal(path, `${basepath}/about`);
 						return nightmare.title();
 					})
 					.then(title => {
@@ -181,7 +275,7 @@ function run(env) {
 					.goto(`${base}/about`)
 					.init()
 					.click('.goto')
-					.wait(() => window.location.pathname === '/blog/what-is-sapper')
+					.wait(url => window.location.pathname === url, `${basepath}/blog/what-is-sapper`)
 					.wait(100)
 					.title()
 					.then(title => {
@@ -190,9 +284,7 @@ function run(env) {
 			});
 
 			it('prefetches programmatically', () => {
-				return nightmare
-					.goto(`${base}/about`)
-					.init()
+				return capture(() => nightmare.goto(`${base}/about`).init())
 					.then(() => {
 						return capture(() => {
 							return nightmare
@@ -201,7 +293,7 @@ function run(env) {
 						});
 					})
 					.then(requests => {
-						assert.ok(!!requests.find(r => r.url === '/blog/why-the-name.json'));
+						assert.ok(!!requests.find(r => r.url === `/blog/why-the-name.json`));
 					});
 			});
 
@@ -215,28 +307,31 @@ function run(env) {
 					});
 			});
 
-			it('reuses prefetch promise', () => {
+			it.skip('reuses prefetch promise', () => {
 				return nightmare
 					.goto(`${base}/blog`)
 					.init()
 					.then(() => {
 						return capture(() => {
 							return nightmare
-								.mouseover('[href="/blog/what-is-sapper"]')
+								.evaluate(() => {
+									const a = document.querySelector('[href="blog/what-is-sapper"]');
+									a.dispatchEvent(new MouseEvent('mousemove'));
+								})
 								.wait(200);
 						});
 					})
 					.then(mouseover_requests => {
-						assert.ok(mouseover_requests.findIndex(r => r.url === '/blog/what-is-sapper.json') !== -1);
+						assert.ok(mouseover_requests.findIndex(r => r.url === `/blog/what-is-sapper.json`) !== -1);
 
 						return capture(() => {
 							return nightmare
-								.click('[href="/blog/what-is-sapper"]')
+								.click('[href="blog/what-is-sapper"]')
 								.wait(200);
 						});
 					})
 					.then(click_requests => {
-						assert.ok(click_requests.findIndex(r => r.url === '/blog/what-is-sapper.json') === -1);
+						assert.ok(click_requests.findIndex(r => r.url === `/blog/what-is-sapper.json`) === -1);
 					});
 			});
 
@@ -244,13 +339,13 @@ function run(env) {
 				return nightmare
 					.goto(base)
 					.init()
-					.click('a[href="/slow-preload"]')
+					.click('a[href="slow-preload"]')
 					.wait(100)
-					.click('a[href="/about"]')
+					.click('a[href="about"]')
 					.wait(100)
 					.then(() => nightmare.path())
 					.then(path => {
-						assert.equal(path, '/about');
+						assert.equal(path, `${basepath}/about`);
 						return nightmare.title();
 					})
 					.then(title => {
@@ -259,7 +354,7 @@ function run(env) {
 					})
 					.then(() => nightmare.path())
 					.then(path => {
-						assert.equal(path, '/about');
+						assert.equal(path, `${basepath}/about`);
 						return nightmare.title();
 					})
 					.then(title => {
@@ -272,7 +367,7 @@ function run(env) {
 					.goto(`${base}/show-url`)
 					.init()
 					.evaluate(() => document.querySelector('p').innerHTML)
-					.end().then(html => {
+					.then(html => {
 						assert.equal(html, `URL is /show-url`);
 					});
 			});
@@ -308,7 +403,7 @@ function run(env) {
 				return nightmare.goto(`${base}/redirect-from`)
 					.path()
 					.then(path => {
-						assert.equal(path, '/redirect-to');
+						assert.equal(path, `${basepath}/redirect-to`);
 					})
 					.then(() => nightmare.page.title())
 					.then(title => {
@@ -318,12 +413,12 @@ function run(env) {
 
 			it('redirects in client', () => {
 				return nightmare.goto(base)
-					.wait('[href="/redirect-from"]')
-					.click('[href="/redirect-from"]')
+					.wait('[href="redirect-from"]')
+					.click('[href="redirect-from"]')
 					.wait(200)
 					.path()
 					.then(path => {
-						assert.equal(path, '/redirect-to');
+						assert.equal(path, `${basepath}/redirect-to`);
 					})
 					.then(() => nightmare.page.title())
 					.then(title => {
@@ -335,7 +430,7 @@ function run(env) {
 				return nightmare.goto(`${base}/blog/nope`)
 					.path()
 					.then(path => {
-						assert.equal(path, '/blog/nope');
+						assert.equal(path, `${basepath}/blog/nope`);
 					})
 					.then(() => nightmare.page.title())
 					.then(title => {
@@ -346,11 +441,11 @@ function run(env) {
 			it('handles 4xx error in client', () => {
 				return nightmare.goto(base)
 					.init()
-					.click('[href="/blog/nope"]')
+					.click('[href="blog/nope"]')
 					.wait(200)
 					.path()
 					.then(path => {
-						assert.equal(path, '/blog/nope');
+						assert.equal(path, `${basepath}/blog/nope`);
 					})
 					.then(() => nightmare.page.title())
 					.then(title => {
@@ -362,7 +457,7 @@ function run(env) {
 				return nightmare.goto(`${base}/blog/throw-an-error`)
 					.path()
 					.then(path => {
-						assert.equal(path, '/blog/throw-an-error');
+						assert.equal(path, `${basepath}/blog/throw-an-error`);
 					})
 					.then(() => nightmare.page.title())
 					.then(title => {
@@ -373,11 +468,11 @@ function run(env) {
 			it('handles non-4xx error in client', () => {
 				return nightmare.goto(base)
 					.init()
-					.click('[href="/blog/throw-an-error"]')
+					.click('[href="blog/throw-an-error"]')
 					.wait(200)
 					.path()
 					.then(path => {
-						assert.equal(path, '/blog/throw-an-error');
+						assert.equal(path, `${basepath}/blog/throw-an-error`);
 					})
 					.then(() => nightmare.page.title())
 					.then(title => {
@@ -388,7 +483,7 @@ function run(env) {
 			it('does not attempt client-side navigation to server routes', () => {
 				return nightmare.goto(`${base}/blog/how-is-sapper-different-from-next`)
 					.init()
-					.click(`[href="/blog/how-is-sapper-different-from-next.json"]`)
+					.click(`[href="blog/how-is-sapper-different-from-next.json"]`)
 					.wait(200)
 					.page.text()
 					.then(text => {
@@ -411,11 +506,102 @@ function run(env) {
 						assert.equal(title, `I'm afraid I just blue myself`);
 					});
 			});
+
+			it('serializes Set objects returned from preload', () => {
+				return nightmare.goto(`${base}/preload-values/set`)
+					.page.title()
+					.then(title => {
+						assert.equal(title, 'true');
+						return nightmare.init().page.title();
+					})
+					.then(title => {
+						assert.equal(title, 'true');
+					});
+			});
+
+			it('bails on custom classes returned from preload', () => {
+				return nightmare.goto(`${base}/preload-values/custom-class`)
+					.page.title()
+					.then(title => {
+						assert.equal(title, '42');
+						return nightmare.init().page.title();
+					})
+					.then(title => {
+						assert.equal(title, '42');
+					});
+			});
+
+			it('renders store props', () => {
+				return nightmare.goto(`${base}/store`)
+					.page.title()
+					.then(title => {
+						assert.equal(title, 'Stored title');
+						return nightmare.init().page.title();
+					})
+					.then(title => {
+						assert.equal(title, 'Stored title');
+					});
+			});
+
+			it('sends cookies when using this.fetch with credentials: "include"', () => {
+				return nightmare.goto(`${base}/credentials?creds=include`)
+					.page.title()
+					.then(title => {
+						assert.equal(title, 'woohoo!');
+					});
+			});
+
+			it('does not send cookies when using this.fetch without credentials', () => {
+				return nightmare.goto(`${base}/credentials`)
+					.page.title()
+					.then(title => {
+						assert.equal(title, 'unauthorized');
+					});
+			});
+
+			it('delegates to fetch on the client', () => {
+				return nightmare.goto(base).init()
+					.click('[href="credentials?creds=include"]')
+					.wait(100)
+					.page.title()
+					.then(title => {
+						assert.equal(title, 'woohoo!');
+					});
+			});
+
+			it('includes service worker', () => {
+				return nightmare.goto(base).page.html().then(html => {
+					assert.ok(html.indexOf('service-worker.js') !== -1);
+				});
+			});
+
+			it('sets preloading true when appropriate', () => {
+				return nightmare
+					.goto(base)
+					.init()
+					.click('a[href="slow-preload"]')
+					.wait(100)
+					.evaluate(() => {
+						const progress = document.querySelector('progress');
+						return !!progress;
+					})
+					.then(hasProgressIndicator => {
+						assert.ok(hasProgressIndicator);
+					})
+					.then(() => nightmare.evaluate(() => window.fulfil()))
+					.then(() => nightmare.evaluate(() => {
+						const progress = document.querySelector('progress');
+						return !!progress;
+					}))
+					.then(hasProgressIndicator => {
+						assert.ok(!hasProgressIndicator);
+					});
+			});
 		});
 
 		describe('headers', () => {
 			it('sets Content-Type and Link...preload headers', () => {
-				return capture(() => nightmare.goto(base).end()).then(requests => {
+				return capture(() => nightmare.goto(base)).then(requests => {
 					const { headers } = requests[0];
 
 					assert.equal(
@@ -423,86 +609,27 @@ function run(env) {
 						'text/html'
 					);
 
+					const str = ['main', '_\\.\\d+']
+						.map(file => {
+							return `<${basepath}/client/[^/]+/${file}\\.js>;rel="preload";as="script"`;
+						})
+						.join(', ');
+
+					const regex = new RegExp(str);
+
 					assert.ok(
-						/<\/client\/[^/]+\/main\.js>;rel="preload";as="script", <\/client\/[^/]+\/_\.\d+\.js>;rel="preload";as="script"/.test(headers['link']),
+						regex.test(headers['link']),
 						headers['link']
 					);
 				});
 			});
 		});
-
-		if (env === 'production') {
-			describe('export', () => {
-				it('export all pages', () => {
-					const dest = path.resolve(__dirname, '../app/export');
-
-					// Pages that should show up in the extraction directory.
-					const expectedPages = [
-						'index.html',
-						'about/index.html',
-						'slow-preload/index.html',
-
-						'blog/index.html',
-						'blog/a-very-long-post/index.html',
-						'blog/how-can-i-get-involved/index.html',
-						'blog/how-is-sapper-different-from-next/index.html',
-						'blog/how-to-use-sapper/index.html',
-						'blog/what-is-sapper/index.html',
-						'blog/why-the-name/index.html',
-
-						'blog.json',
-						'blog/a-very-long-post.json',
-						'blog/how-can-i-get-involved.json',
-						'blog/how-is-sapper-different-from-next.json',
-						'blog/how-to-use-sapper.json',
-						'blog/what-is-sapper.json',
-						'blog/why-the-name.json',
-
-						'favicon.png',
-						'global.css',
-						'great-success.png',
-						'manifest.json',
-						'service-worker.js',
-						'svelte-logo-192.png',
-						'svelte-logo-512.png',
-					];
-					// Client scripts that should show up in the extraction directory.
-					const expectedClientRegexes = [
-						/client\/[^/]+\/_(\.\d+)?\.js/,
-						/client\/[^/]+\/about(\.\d+)?\.js/,
-						/client\/[^/]+\/blog_\$slug\$(\.\d+)?\.js/,
-						/client\/[^/]+\/blog(\.\d+)?\.js/,
-						/client\/[^/]+\/main(\.\d+)?\.js/,
-						/client\/[^/]+\/show_url(\.\d+)?\.js/,
-						/client\/[^/]+\/slow_preload(\.\d+)?\.js/,
-					];
-					const allPages = walkSync(dest);
-
-					expectedPages.forEach((expectedPage) => {
-						assert.ok(allPages.includes(expectedPage),`Could not find page matching ${expectedPage}`);
-					});
-
-					expectedClientRegexes.forEach((expectedRegex) => {
-						// Ensure each client page regular expression matches at least one
-						// generated page.
-						let matched = false;
-						for (const page of allPages) {
-							if (expectedRegex.test(page)) {
-								matched = true;
-								break;
-							}
-						}
-						assert.ok(matched, `Could not find client page matching ${expectedRegex}`);
-					});
-				});
-			});
-		}
 	});
 }
 
 function exec(cmd) {
 	return new Promise((fulfil, reject) => {
-		const parts = cmd.split(' ');
+		const parts = cmd.trim().split(' ');
 		const proc = require('child_process').spawn(parts.shift(), parts);
 
 		proc.stdout.on('data', data => {

test/unit/create_routes.test.js

@@ -1,19 +1,60 @@
 const assert = require('assert');
-const { create_routes } = require('../../core.js');
+const { create_routes } = require('../../dist/core.ts.js');
 
 describe('create_routes', () => {
+	it('sorts handlers correctly', () => {
+		const routes = create_routes({
+			files: ['foo.html', 'foo.js']
+		});
+
+		assert.deepEqual(
+			routes.map(r => r.handlers),
+			[
+				[
+					{
+						type: 'route',
+						file: 'foo.js'
+					},
+					{
+						type: 'page',
+						file: 'foo.html'
+					}
+				]
+			]
+		)
+	});
+
+	it('encodes characters not allowed in path', () => {
+		const routes = create_routes({
+			files: [
+				'"',
+				'#',
+				'?'
+			]
+		});
+
+		assert.deepEqual(
+			routes.map(r => r.pattern),
+			[
+				/^\/%22\/?$/,
+				/^\/%23\/?$/,
+				/^\/%3F\/?$/
+			]
+		);
+	});
+
 	it('sorts routes correctly', () => {
 		const routes = create_routes({
 			files: ['index.html', 'about.html', 'post/f[xx].html', '[wildcard].html', 'post/foo.html', 'post/[id].html', 'post/bar.html', 'post/[id].json.js']
 		});
 
 		assert.deepEqual(
-			routes.map(r => r.file),
+			routes.map(r => r.handlers[0].file),
 			[
 				'index.html',
 				'about.html',
-				'post/foo.html',
 				'post/bar.html',
+				'post/foo.html',
 				'post/f[xx].html',
 				'post/[id].json.js',
 				'post/[id].html',
@@ -22,6 +63,80 @@ describe('create_routes', () => {
 		);
 	});
 
+	it('prefers index page to nested route', () => {
+		let routes = create_routes({
+			files: [
+				'api/examples/[slug].js',
+				'api/examples/index.js',
+				'blog/[slug].html',
+				'api/gists/[id].js',
+				'api/gists/index.js',
+				'4xx.html',
+				'5xx.html',
+				'blog/index.html',
+				'blog/rss.xml.js',
+				'guide/index.html',
+				'index.html'
+			]
+		});
+
+		assert.deepEqual(
+			routes.map(r => r.handlers[0].file),
+			[
+				'4xx.html',
+				'5xx.html',
+				'index.html',
+				'guide/index.html',
+				'blog/index.html',
+				'blog/rss.xml.js',
+				'blog/[slug].html',
+				'api/examples/index.js',
+				'api/examples/[slug].js',
+				'api/gists/index.js',
+				'api/gists/[id].js',
+			]
+		);
+
+		routes = create_routes({
+			files: [
+				'4xx.html',
+				'5xx.html',
+				'api/blog/[slug].js',
+				'api/blog/index.js',
+				'api/guide/contents.js',
+				'api/guide/index.js',
+				'blog/[slug].html',
+				'blog/index.html',
+				'blog/rss.xml.js',
+				'gist/[id].js',
+				'gist/create.js',
+				'guide/index.html',
+				'index.html',
+				'repl/index.html'
+			]
+		});
+
+		assert.deepEqual(
+			routes.map(r => r.handlers[0].file),
+			[
+				'4xx.html',
+				'5xx.html',
+				'index.html',
+				'guide/index.html',
+				'blog/index.html',
+				'blog/rss.xml.js',
+				'blog/[slug].html',
+				'gist/create.js',
+				'gist/[id].js',
+				'repl/index.html',
+				'api/guide/index.js',
+				'api/guide/contents.js',
+				'api/blog/index.js',
+				'api/blog/[slug].js',
+			]
+		);
+	});
+
 	it('generates params', () => {
 		const routes = create_routes({
 			files: ['index.html', 'about.html', '[wildcard].html', 'post/[id].html']
@@ -32,7 +147,7 @@ describe('create_routes', () => {
 		for (let i = 0; i < routes.length; i += 1) {
 			const route = routes[i];
 			if (params = route.exec('/post/123')) {
-				file = route.file;
+				file = route.handlers[0].file;
 				break;
 			}
 		}
@@ -49,7 +164,7 @@ describe('create_routes', () => {
 		});
 
 		assert.deepEqual(
-			routes.map(r => r.file),
+			routes.map(r => r.handlers[0].file),
 			[
 				'index.html',
 				'e/f/g/h.html'
@@ -57,6 +172,17 @@ describe('create_routes', () => {
 		);
 	});
 
+	it('ignores files and directories with leading dots except .well-known', () => {
+		const routes = create_routes({
+			files: ['.well-known', '.unknown']
+		});
+
+		assert.deepEqual(
+			routes.map(r => r.handlers[0].file),
+			['.well-known']
+		);
+	});
+
 	it('matches /foo/:bar before /:baz/qux', () => {
 		const a = create_routes({
 			files: ['foo/[bar].html', '[baz]/qux.html']
@@ -66,12 +192,12 @@ describe('create_routes', () => {
 		});
 
 		assert.deepEqual(
-			a.map(r => r.file),
+			a.map(r => r.handlers[0].file),
 			['foo/[bar].html', '[baz]/qux.html']
 		);
 
 		assert.deepEqual(
-			b.map(r => r.file),
+			b.map(r => r.handlers[0].file),
 			['foo/[bar].html', '[baz]/qux.html']
 		);
 	});
@@ -81,13 +207,7 @@ describe('create_routes', () => {
 			create_routes({
 				files: ['[foo].html', '[bar]/index.html']
 			});
-		}, /The \[foo\].html and \[bar\]\/index.html routes clash/);
-
-		assert.throws(() => {
-			create_routes({
-				files: ['foo.html', 'foo.js']
-			});
-		}, /The foo.html and foo.js routes clash/);
+		}, /The \[foo\] and \[bar\]\/index routes clash/);
 	});
 
 	it('matches nested routes', () => {
@@ -110,7 +230,7 @@ describe('create_routes', () => {
 		});
 
 		assert.deepEqual(
-			routes.map(r => r.file),
+			routes.map(r => r.handlers[0].file),
 			['settings.html', 'settings/[submenu].html']
 		);
 	});

webpack.js

@@ -0,0 +1,2 @@
+// TODO write to this file, instead of webpack.ts.js
+module.exports = require('./dist/webpack.ts.js');

webpack/config.js

@@ -0,0 +1,2 @@
+// TODO deprecate this file in favour of sapper/webpack.js
+module.exports = require('../dist/webpack.ts.js');