create API for exporting

src/cli/export.ts

@@ -1,106 +1,35 @@
-import * as child_process from 'child_process';
-import * as path from 'path';
-import * as sander from 'sander';
+import _exporter from '../api/export';
 import * as colors from 'ansi-colors';
-import cheerio from 'cheerio';
-import URL from 'url-parse';
-import fetch from 'node-fetch';
-import * as ports from 'port-authority';
 import prettyBytes from 'pretty-bytes';
-import { minify_html } from '../api/utils/minify_html';
 import { locations } from '../config';
 
-export async function exporter(export_dir: string, { basepath = '' }) {
-	const build_dir = locations.dest();
+export function exporter(export_dir: string, { basepath = '' }) {
+	return new Promise((fulfil, reject) => {
+		try {
+			const emitter = _exporter({
+				build: locations.dest(),
+				dest: export_dir,
+				basepath
+			});
 
-	export_dir = path.join(export_dir, basepath);
+			emitter.on('file', event => {
+				console.log(`${colors.bold.cyan(event.file)} ${colors.gray(`(${prettyBytes(event.size)})`)}`);
+			});
 
-	// Prep output directory
-	sander.rimrafSync(export_dir);
+			emitter.on('failure', event => {
+				console.log(`${colors.red(`> Received ${event.status} response when fetching ${event.pathname}`)}`);
+			});
 
-	sander.copydirSync('assets').to(export_dir);
-	sander.copydirSync(build_dir, 'client').to(export_dir, 'client');
+			emitter.on('error', event => {
+				reject(event.error);
+			});
 
-	if (sander.existsSync(build_dir, 'service-worker.js')) {
-		sander.copyFileSync(build_dir, 'service-worker.js').to(export_dir, 'service-worker.js');
-	}
-
-	if (sander.existsSync(build_dir, 'service-worker.js.map')) {
-		sander.copyFileSync(build_dir, '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_dir}/server.js`), [], {
-		cwd: process.cwd(),
-		env: Object.assign({
-			PORT: port,
-			NODE_ENV: 'production',
-			SAPPER_DEST: build_dir,
-			SAPPER_EXPORT: 'true'
-		}, process.env)
+			emitter.on('done', event => {
+				fulfil();
+			});
+		} catch (err) {
+			console.log(`${colors.bold.red(`> ${err.message}`)}`);
+			process.exit(1);
+		}
 	});
-
-	const seen = new Set();
-	const saved = new Set();
-
-	proc.on('message', message => {
-		if (!message.__sapper__) return;
-
-		let file = new URL(message.url, origin).pathname.slice(1);
-		let { body } = message;
-
-		if (saved.has(file)) return;
-		saved.add(file);
-
-		const is_html = message.type === 'text/html';
-
-		if (is_html) {
-			file = file === '' ? 'index.html' : `${file}/index.html`;
-			body = minify_html(body);
-		}
-
-		console.log(`${colors.bold.cyan(file)} ${colors.gray(`(${prettyBytes(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) {
-			console.log(`${colors.red(`> Received ${r.status} response when fetching ${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());
-}
+}