Temp hack

.changeset/fresh-rivers-allow.md

@@ -0,0 +1,5 @@
+---
+'astro': patch
+---
+
+Add a DevApp export

packages/astro/package.json

@@ -44,6 +44,7 @@
     },
     "./app": "./dist/core/app/index.js",
     "./app/node": "./dist/core/app/node.js",
+    "./app/dev": "./dist/core/app/dev.js",
     "./client/*": "./dist/runtime/client/*",
     "./components": "./components/index.ts",
     "./components/*": "./components/*",

packages/astro/src/core/app/dev.ts

@@ -0,0 +1,189 @@
+import type { ComponentInstance, RouteData } from '../../@types/astro';
+import type { SSRManifest as Manifest } from './types';
+import type { LogOptions } from '../logger/core';
+import type http from 'http';
+import { posix } from 'node:path';
+import { fileURLToPath } from 'node:url';
+import { createContainer, type CreateContainerParams } from '../dev/index.js';
+import { openConfig, createSettings } from '../config/index.js';
+import { createViteLoader } from '../module-loader/index.js';
+import { createRouteManifest } from '../routing/index.js';
+import {
+	createDevelopmentEnvironment,
+	getScriptsAndStyles,
+	preload,
+	type DevelopmentEnvironment
+} from '../render/dev/index.js';
+import {
+	renderPage as coreRenderPage
+} from '../render/index.js';
+import { App } from './index.js';
+import { RenderContext, Environment } from '../render';
+import { nodeLogDestination } from '../logger/node.js';
+
+export const logging: LogOptions = {
+	dest: nodeLogDestination,
+	level: 'error',
+};
+
+export type DevAppParams = Partial<CreateContainerParams> & {
+	root: URL;
+}
+
+export class DevApp extends App {
+	#createContainerParams: CreateContainerParams;
+	#manifest: Manifest;
+	#env: DevelopmentEnvironment | null = null;
+	#root: URL;
+	#modToRoute = new Map<ComponentInstance, RouteData>();
+
+	// TODO don't expose this entire API
+	container: Awaited<ReturnType<typeof createContainer>> | null = null;
+	constructor(params: DevAppParams) {
+		const { root, userConfig } = params;
+		const manifest: Manifest = {
+			adapterName: 'development',
+			base: userConfig?.base,
+			routes: [],
+			markdown: {
+				contentDir: root
+			},
+			pageMap: new Map(),
+			renderers: [],
+			// Temporary hack
+      entryModules: new Proxy({}, {
+        has() {
+          return true;
+        },
+        get(target, key) {
+          return key;
+        }
+      }),
+			assets: new Set(),
+			propagation: new Map(),
+			trailingSlash: userConfig?.trailingSlash ?? 'ignore'
+		};
+		super(manifest, true);
+		this.#manifest = manifest;
+		this.#root = root;
+		this.#createContainerParams = params;
+	}
+	
+	get loaded() {
+		return !!this.container;
+	}
+
+	url(pathname: string): string | undefined {
+		if(!this.loaded) {
+			return undefined;
+		}
+		const { host, port } = this.container!.settings.config.server
+		return new URL(pathname, `http://${host}:${port}`).toString();
+	}
+
+	async load() {
+		if(this.loaded) {
+			await this.close();
+			this.container = null;
+			this.#env = null;
+		}
+
+		const params: CreateContainerParams = {
+			...this.#createContainerParams,
+		};
+
+		if(!this.#createContainerParams.userConfig) {
+			const configResult = await openConfig({
+				cmd: 'dev',
+				logging,
+			});
+			params.settings = createSettings(configResult.astroConfig);
+		}
+
+		const container = this.container = await createContainer(params);
+		this.#manifest.trailingSlash = container.settings.config.trailingSlash;
+
+		const loader = createViteLoader(container.viteServer);
+		
+		const routeManifest = createRouteManifest({
+			settings: container.settings,
+			fsMod: this.#createContainerParams.fs
+		}, container.logging);
+		const routes = routeManifest.routes.map(routeData => {
+			return {
+				routeData,
+				file: routeData.component,
+				links: [],
+				scripts: []
+			}
+		});
+		this.updateRoutes(routes);
+		this.#env = createDevelopmentEnvironment(container.settings, container.logging, loader);
+		return this;
+	}
+
+	async close() {
+		await this.container?.close();	
+	}
+
+	fileChanged(path: string) {
+		const container = this.container!;
+		const fs = this.#createContainerParams.fs!;
+		const root = fileURLToPath(this.#root);
+		const fullPath = posix.join(root, path);
+		container.viteServer.watcher.emit('change', fullPath);
+
+		if (!fileURLToPath(container.settings.config.root).startsWith('/')) {
+			const drive = fileURLToPath(container.settings.config.root).slice(0, 2);
+			container.viteServer.watcher.emit('change', drive + fullPath);
+		}
+	}
+
+	handle(req: http.IncomingMessage, res: http.ServerResponse) {
+		this.container!.handle(req, res);
+	}
+
+	async render(request: Request, route?: RouteData | undefined): Promise<Response> {
+		if(!this.loaded) {
+			await this.load();
+		}
+		if(!route) {
+			route = this.match(request, { matchNotFound: false });
+		}
+		if(route) {
+			const filePath = new URL(route.component, this.#root);
+
+			// Always run preload so that if there has been a change in the file, the new
+			// version will run.
+			const [renderers, mod] = await preload({
+				env: this.#env!,
+				filePath
+			});
+
+			// Always reset the renderers as they might have changed.
+			this.#manifest.renderers.length = 0;
+			this.#manifest.renderers.push(...renderers);
+
+			// Save this module in the pageMap, so that super.render() finds it.
+			this.#manifest.pageMap.set(route.component, mod);
+			this.#modToRoute.set(mod, route);
+		}
+		return super.render(request, route);
+	}
+
+	renderPage = async (mod: ComponentInstance, ctx: RenderContext, env: Environment) => {
+		const route = this.#modToRoute.get(mod)!;
+
+		const { scripts, links, styles, propagationMap } = await getScriptsAndStyles({
+			env: this.#env!,
+			filePath: new URL(route.component, this.#root),
+		});
+
+		ctx.scripts = scripts;
+		ctx.links = links;
+		ctx.styles = styles;
+		ctx.propagation = propagationMap;
+
+		return coreRenderPage(mod, ctx, env);
+	};
+}

packages/astro/src/core/app/index.ts

@@ -38,8 +38,8 @@ export interface MatchOptions {
 export class App {
 	#env: Environment;
 	#manifest: Manifest;
-	#manifestData: ManifestData;
-	#routeDataToRouteInfo: Map<RouteData, RouteInfo>;
+	#manifestData: ManifestData = { routes: [] };
+	#routeDataToRouteInfo: Map<RouteData, RouteInfo> = new Map();
 	#encoder = new TextEncoder();
 	#logging: LogOptions = {
 		dest: consoleLogDestination,
@@ -47,13 +47,11 @@ export class App {
 	};
 	#base: string;
 	#baseWithoutTrailingSlash: string;
+	renderPage: typeof renderPage;
 
 	constructor(manifest: Manifest, streaming = true) {
 		this.#manifest = manifest;
-		this.#manifestData = {
-			routes: manifest.routes.map((route) => route.routeData),
-		};
-		this.#routeDataToRouteInfo = new Map(manifest.routes.map((route) => [route.routeData, route]));
+		this.updateRoutes(manifest.routes);
 		this.#env = createEnvironment({
 			adapterName: manifest.adapterName,
 			logging: this.#logging,
@@ -83,6 +81,16 @@ export class App {
 
 		this.#base = this.#manifest.base || '/';
 		this.#baseWithoutTrailingSlash = removeTrailingForwardSlash(this.#base);
+		this.renderPage = renderPage;
+	}
+	updateRoutes(routes: RouteInfo[]) {
+		this.#manifestData = {
+			routes: routes.map((route) => route.routeData),
+		};
+		this.#routeDataToRouteInfo = new Map(routes.map((route) => [route.routeData, route]));
+	}
+	get routes() {
+		return this.#manifestData.routes;
 	}
 	removeBase(pathname: string) {
 		if (pathname.startsWith(this.#base)) {
@@ -96,7 +104,14 @@ export class App {
 		if (this.#manifest.assets.has(url.pathname)) {
 			return undefined;
 		}
-		let pathname = '/' + this.removeBase(url.pathname);
+		let hasTrailingSlash = url.pathname.endsWith('/');
+		let noBase = this.removeBase(url.pathname);
+		let pathname: string;
+		if(this.#manifest.trailingSlash === 'never' && noBase === '' && !hasTrailingSlash) {
+			pathname = noBase;
+		} else {
+			pathname = prependForwardSlash(noBase);
+		}
 		let routeData = matchRoute(pathname, this.#manifestData);
 
 		if (routeData) {
@@ -200,7 +215,7 @@ export class App {
 				status,
 			});
 
-			const response = await renderPage(mod, ctx, this.#env);
+			const response = await this.renderPage(mod, ctx, this.#env);
 			return response;
 		} catch (err: any) {
 			error(this.#logging, 'ssr', err.stack || err.message || String(err));

packages/astro/src/core/app/types.ts

@@ -1,5 +1,6 @@
 import type { MarkdownRenderingOptions } from '@astrojs/markdown-remark';
 import type {
+	AstroConfig,
 	ComponentInstance,
 	PropagationHint,
 	RouteData,
@@ -37,6 +38,7 @@ export interface SSRManifest {
 	entryModules: Record<string, string>;
 	assets: Set<string>;
 	propagation: SSRResult['propagation'];
+	trailingSlash: AstroConfig['trailingSlash'];
 }
 
 export type SerializedSSRManifest = Omit<SSRManifest, 'routes' | 'assets' | 'propagation'> & {

packages/astro/src/core/build/plugins/plugin-ssr.ts

@@ -215,6 +215,7 @@ function buildManifest(
 		renderers: [],
 		entryModules,
 		assets: staticFiles.map((s) => settings.config.base + s),
+		trailingSlash: opts.settings.config.trailingSlash,
 	};
 
 	return ssrManifest;

packages/astro/src/core/dev/index.ts

@@ -1,3 +1,3 @@
-export { createContainer, isStarted, runInContainer, startContainer } from './container.js';
+export { createContainer, isStarted, runInContainer, startContainer, type CreateContainerParams } from './container.js';
 export { default } from './dev.js';
 export { createContainerWithAutomaticRestart } from './restart.js';

packages/astro/src/core/render/dev/index.ts

@@ -74,7 +74,7 @@ interface GetScriptsAndStylesParams {
 	filePath: URL;
 }
 
-async function getScriptsAndStyles({ env, filePath }: GetScriptsAndStylesParams) {
+export async function getScriptsAndStyles({ env, filePath }: GetScriptsAndStylesParams) {
 	// Add hoisted script tags
 	const scripts = await getScriptsForURL(filePath, env.loader);
 

packages/astro/test/units/dev/base.test.js

@@ -1,7 +1,7 @@
 import { expect } from 'chai';
 
-import { runInContainer } from '../../../dist/core/dev/index.js';
-import { createFs, createRequestAndResponse } from '../test-utils.js';
+import { DevApp } from '../../../dist/core/app/dev.js';
+import { createFs } from '../test-utils.js';
 
 const root = new URL('../../fixtures/alias/', import.meta.url);
 
@@ -16,25 +16,23 @@ describe('base configuration', () => {
 					root
 				);
 
-				await runInContainer(
-					{
-						fs,
+				const app = new DevApp({
 					root,
+					fs,
 					userConfig: {
 						base: '/docs',
 						trailingSlash: 'never',
 					},
-					},
-					async (container) => {
-						const { req, res, done } = createRequestAndResponse({
-							method: 'GET',
-							url: '/docs/',
 				});
-						container.handle(req, res);
-						await done;
-						expect(res.statusCode).to.equal(404);
+
+				try {
+					const request = new Request(`http://localhost:8080/docs/`);
+					const response = await app.render(request);
+	
+					expect(response.status).to.equal(404);
+				} finally {
+					await app.close();
 				}
-				);
 			});
 
 			it('Requests that exclude a trailing slash 200', async () => {
@@ -45,25 +43,23 @@ describe('base configuration', () => {
 					root
 				);
 
-				await runInContainer(
-					{
-						fs,
+				const app = new DevApp({
 					root,
+					fs,
 					userConfig: {
 						base: '/docs',
 						trailingSlash: 'never',
 					},
-					},
-					async (container) => {
-						const { req, res, done } = createRequestAndResponse({
-							method: 'GET',
-							url: '/docs',
 				});
-						container.handle(req, res);
-						await done;
-						expect(res.statusCode).to.equal(200);
+
+				try {
+					const request = new Request(`http://localhost:8080/docs`);
+
+					const response = await app.render(request);
+					expect(response.status).to.equal(200);
+				} finally {
+					await app.close();
 				}
-				);
 			});
 		});
 
@@ -76,25 +72,23 @@ describe('base configuration', () => {
 					root
 				);
 
-				await runInContainer(
-					{
+				const app = new DevApp({
 					fs,
 					root,
 					userConfig: {
 						base: '/docs',
 						trailingSlash: 'never',
 					},
-					},
-					async (container) => {
-						const { req, res, done } = createRequestAndResponse({
-							method: 'GET',
-							url: '/docs/sub/',
 				});
-						container.handle(req, res);
-						await done;
-						expect(res.statusCode).to.equal(404);
+
+				try {
+					const request = new Request(`http://localhost:8080/docs/sub/`);
+
+					const response = await app.render(request);
+					expect(response.status).to.equal(404);
+				} finally {
+					await app.close();
 				}
-				);
 			});
 
 			it('Requests that exclude a trailing slash 200', async () => {
@@ -105,25 +99,23 @@ describe('base configuration', () => {
 					root
 				);
 
-				await runInContainer(
-					{
+				const app = new DevApp({
 					fs,
 					root,
 					userConfig: {
 						base: '/docs',
 						trailingSlash: 'never',
 					},
-					},
-					async (container) => {
-						const { req, res, done } = createRequestAndResponse({
-							method: 'GET',
-							url: '/docs/sub',
 				});
-						container.handle(req, res);
-						await done;
-						expect(res.statusCode).to.equal(200);
+
+				try {
+					const request = new Request(`http://localhost:8080/docs/sub`);
+
+					const response = await app.render(request);
+					expect(response.status).to.equal(200);
+				} finally {
+					await app.close();
 				}
-				);
 			});
 		});
 	});

packages/astro/test/units/dev/dev.test.js

@@ -1,6 +1,7 @@
 import { expect } from 'chai';
 import * as cheerio from 'cheerio';
 
+import { DevApp } from '../../../dist/core/app/dev.js';
 import { runInContainer } from '../../../dist/core/dev/index.js';
 import { createFs, createRequestAndResponse, triggerFSEvent } from '../test-utils.js';
 
@@ -25,17 +26,21 @@ describe('dev container', () => {
 			root
 		);
 
-		await runInContainer({ fs, root }, async (container) => {
-			const { req, res, text } = createRequestAndResponse({
-				method: 'GET',
-				url: '/',
-			});
-			container.handle(req, res);
-			const html = await text();
+		const app = new DevApp({ fs, root });
+		try {
+			await app.load();
+			const request = new Request(app.url('/'));
+
+			const response = await app.render(request);
+			expect(response.status).to.equal(200);
+
+			const html = await response.text();
 			const $ = cheerio.load(html);
-			expect(res.statusCode).to.equal(200);
+			
 			expect($('h1')).to.have.a.lengthOf(1);
-		});
+		} finally {
+			await app.close();
+		}
 	});
 
 	it('HMR only short circuits on previously cached modules', async () => {
@@ -60,13 +65,14 @@ describe('dev container', () => {
 			root
 		);
 
-		await runInContainer({ fs, root }, async (container) => {
-			let r = createRequestAndResponse({
-				method: 'GET',
-				url: '/',
-			});
-			container.handle(r.req, r.res);
-			let html = await r.text();
+		const app = new DevApp({ fs, root });
+		try {
+			await app.load();
+
+			let request = new Request(app.url('/'));
+			let response = await app.render(request);
+
+			let html = await response.text();
 			let $ = cheerio.load(html);
 			expect($('body.one')).to.have.a.lengthOf(1);
 
@@ -76,7 +82,7 @@ describe('dev container', () => {
 				<h1>{Astro.props.title}</h1>
 			`
 			);
-			triggerFSEvent(container, fs, '/src/components/Header.astro', 'change');
+			app.fileChanged('/src/components/Header.astro');
 
 			fs.writeFileFromRootSync(
 				'/src/pages/index.astro',
@@ -93,18 +99,18 @@ describe('dev container', () => {
 				</html>
 			`
 			);
-			triggerFSEvent(container, fs, '/src/pages/index.astro', 'change');
+			app.fileChanged('/src/pages/index.astro');
 
-			r = createRequestAndResponse({
-				method: 'GET',
-				url: '/',
-			});
-			container.handle(r.req, r.res);
-			html = await r.text();
+			request = new Request(app.url('/'));
+			response = await app.render(request);
+			html = await response.text();
 			$ = cheerio.load(html);
 			expect($('body.one')).to.have.a.lengthOf(0);
 			expect($('body.two')).to.have.a.lengthOf(1);
-		});
+
+		} finally {
+			await app.close();
+		}
 	});
 
 	it('Allows dynamic segments in injected routes', async () => {