Support re-exporting astro components containing client components

.changeset/unlucky-hairs-camp.md

@@ -0,0 +1,5 @@
+---
+'@astrojs/lit': minor
+---
+
+Allows using the Constructor for rendering components

packages/astro/package.json

@@ -78,7 +78,7 @@
     "test:e2e:match": "playwright test -g"
   },
   "dependencies": {
-    "@astrojs/compiler": "^0.15.2",
+    "@astrojs/compiler": "^0.16.1",
     "@astrojs/language-server": "^0.13.4",
     "@astrojs/markdown-remark": "^0.11.2",
     "@astrojs/prism": "0.4.1",

packages/astro/src/core/build/graph.ts

@@ -0,0 +1,36 @@
+import type { GetModuleInfo, ModuleInfo, OutputChunk } from 'rollup';
+import { resolvedPagesVirtualModuleId } from '../app/index.js';
+
+// This walks up the dependency graph and yields out each ModuleInfo object.
+export function* walkParentInfos(
+	id: string,
+	ctx: { getModuleInfo: GetModuleInfo },
+	seen = new Set<string>()
+): Generator<ModuleInfo, void, unknown> {
+	seen.add(id);
+	const info = ctx.getModuleInfo(id);
+	if (info) {
+		yield info;
+	}
+	const importers = (info?.importers || []).concat(info?.dynamicImporters || []);
+	for (const imp of importers) {
+		if (seen.has(imp)) {
+			continue;
+		}
+		yield* walkParentInfos(imp, ctx, seen);
+	}
+}
+
+// This function walks the dependency graph, going up until it finds a page component.
+// This could be a .astro page or a .md page.
+export function* getTopLevelPages(
+	id: string,
+	ctx: { getModuleInfo: GetModuleInfo }
+): Generator<string, void, unknown> {
+	for (const info of walkParentInfos(id, ctx)) {
+		const importers = (info?.importers || []).concat(info?.dynamicImporters || []);
+		if (importers.length <= 2 && importers[0] === resolvedPagesVirtualModuleId) {
+			yield info.id;
+		}
+	}
+}

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

@@ -114,18 +114,6 @@ class AstroBuilder {
 			ssr: isBuildingToSSR(this.config),
 		});
 
-		// Filter pages by using conditions based on their frontmatter.
-		Object.entries(allPages).forEach(([page, data]) => {
-			if ('frontmatter' in data.preload[1]) {
-				// TODO: add better type inference to data.preload[1]
-				const frontmatter = (data.preload[1] as any).frontmatter;
-				if (Boolean(frontmatter.draft) && !this.config.markdown.drafts) {
-					debug('build', timerMessage(`Skipping draft page ${page}`, this.timer.loadStart));
-					delete allPages[page];
-				}
-			}
-		});
-
 		debug('build', timerMessage('All pages loaded', this.timer.loadStart));
 
 		// The names of each pages

packages/astro/src/core/build/internal.ts

@@ -1,4 +1,4 @@
-import type { RenderedChunk } from 'rollup';
+import type { OutputChunk, RenderedChunk } from 'rollup';
 import type { PageBuildData, ViteID } from './types';
 
 import { prependForwardSlash } from '../path.js';
@@ -31,6 +31,27 @@ export interface BuildInternals {
 	 * A map for page-specific information by a client:only component
 	 */
 	pagesByClientOnly: Map<string, Set<PageBuildData>>;
+
+	/**
+	 * A list of hydrated components that are discovered during the SSR build
+	 * These will be used as the top-level entrypoints for the client build.
+	 */
+	discoveredHydratedComponents: Set<string>;
+	/**
+	 * A list of client:only components that are discovered during the SSR build
+	 * These will be used as the top-level entrypoints for the client build.
+	 */
+	discoveredClientOnlyComponents: Set<string>;
+	/**
+	 * A list of hoisted scripts that are discovered during the SSR build
+	 * These will be used as the top-level entrypoints for the client build.
+	 */
+	discoveredScripts: Set<string>;
+
+	// A list of all static files created during the build. Used for SSR.
+	staticFiles: Set<string>;
+	// The SSR entry chunk. Kept in internals to share between ssr/client build steps
+	ssrEntryChunk?: OutputChunk;
 }
 
 /**
@@ -64,6 +85,11 @@ export function createBuildInternals(): BuildInternals {
 		pagesByComponent: new Map(),
 		pagesByViteID: new Map(),
 		pagesByClientOnly: new Map(),
+
+		discoveredHydratedComponents: new Set(),
+		discoveredClientOnlyComponents: new Set(),
+		discoveredScripts: new Set(),
+		staticFiles: new Set(),
 	};
 }
 

packages/astro/src/core/build/page-data.ts

@@ -71,30 +71,18 @@ export async function collectPagesData(
 				css: new Set(),
 				hoistedScript: undefined,
 				scripts: new Set(),
-				preload: await ssrPreload({
-					astroConfig,
-					filePath: new URL(`./${route.component}`, astroConfig.root),
-					viteServer,
-				})
-					.then((routes) => {
-						clearInterval(routeCollectionLogTimeout);
-						if (buildMode === 'static') {
-							const html = `${route.pathname}`.replace(/\/?$/, '/index.html');
-							debug(
-								'build',
-								`├── ${colors.bold(colors.green('✔'))} ${route.component} → ${colors.yellow(html)}`
-							);
-						} else {
-							debug('build', `├── ${colors.bold(colors.green('✔'))} ${route.component}`);
-						}
-						return routes;
-					})
-					.catch((err) => {
-						clearInterval(routeCollectionLogTimeout);
-						debug('build', `├── ${colors.bold(colors.red('✘'))} ${route.component}`);
-						throw err;
-					}),
 			};
+
+			clearInterval(routeCollectionLogTimeout);
+			if (buildMode === 'static') {
+				const html = `${route.pathname}`.replace(/\/?$/, '/index.html');
+				debug(
+					'build',
+					`├── ${colors.bold(colors.green('✔'))} ${route.component} → ${colors.yellow(html)}`
+				);
+			} else {
+				debug('build', `├── ${colors.bold(colors.green('✔'))} ${route.component}`);
+			}
 			continue;
 		}
 		// dynamic route:
@@ -144,12 +132,7 @@ export async function collectPagesData(
 			moduleSpecifier: '',
 			css: new Set(),
 			hoistedScript: undefined,
-			scripts: new Set(),
-			preload: await ssrPreload({
-				astroConfig,
-				filePath: new URL(`./${route.component}`, astroConfig.root),
-				viteServer,
-			}),
+			scripts: new Set()
 		};
 	}
 

packages/astro/src/core/build/static-build.ts

@@ -7,7 +7,6 @@ import * as vite from 'vite';
 import {
 	BuildInternals,
 	createBuildInternals,
-	trackClientOnlyPageDatas,
 } from '../../core/build/internal.js';
 import { prependForwardSlash } from '../../core/path.js';
 import { emptyDir, removeDir } from '../../core/util.js';
@@ -23,24 +22,21 @@ import { getTimeStat } from './util.js';
 import { vitePluginHoistedScripts } from './vite-plugin-hoisted-scripts.js';
 import { vitePluginInternals } from './vite-plugin-internals.js';
 import { vitePluginPages } from './vite-plugin-pages.js';
-import { vitePluginSSR } from './vite-plugin-ssr.js';
+import { vitePluginSSR, injectManifest } from './vite-plugin-ssr.js';
+import { vitePluginAnalyzer } from './vite-plugin-analyzer.js';
 
 export async function staticBuild(opts: StaticBuildOptions) {
 	const { allPages, astroConfig } = opts;
 
 	// The pages to be built for rendering purposes.
 	const pageInput = new Set<string>();
 
-	// The JavaScript entrypoints.
-	const jsInput = new Set<string>();
-
 	// A map of each page .astro file, to the PageBuildData which contains information
 	// about that page, such as its paths.
 	const facadeIdToPageDataMap = new Map<string, PageBuildData>();
 
 	// Build internals needed by the CSS plugin
 	const internals = createBuildInternals();
-	const uniqueHoistedIds = new Map<string, string>();
 
 	const timer: Record<string, number> = {};
 
@@ -53,58 +49,6 @@ export async function staticBuild(opts: StaticBuildOptions) {
 		// Track the page data in internals
 		trackPageData(internals, component, pageData, astroModuleId, astroModuleURL);
 
-		if (pageData.route.type === 'page') {
-			const [renderers, mod] = pageData.preload;
-			const metadata = mod.$$metadata;
-
-			// Track client:only usage so we can map their CSS back to the Page they are used in.
-			const clientOnlys = Array.from(metadata.clientOnlyComponentPaths());
-			trackClientOnlyPageDatas(internals, pageData, clientOnlys);
-
-			const topLevelImports = new Set([
-				// Any component that gets hydrated
-				// 'components/Counter.jsx'
-				// { 'components/Counter.jsx': 'counter.hash.js' }
-				...metadata.hydratedComponentPaths(),
-				// Client-only components
-				...clientOnlys,
-				// The client path for each renderer
-				...renderers
-					.filter((renderer) => !!renderer.clientEntrypoint)
-					.map((renderer) => renderer.clientEntrypoint!),
-			]);
-
-			// Add hoisted scripts
-			const hoistedScripts = new Set(metadata.hoistedScriptPaths());
-			if (hoistedScripts.size) {
-				const uniqueHoistedId = JSON.stringify(Array.from(hoistedScripts).sort());
-				let moduleId: string;
-
-				// If we're already tracking this set of hoisted scripts, get the unique id
-				if (uniqueHoistedIds.has(uniqueHoistedId)) {
-					moduleId = uniqueHoistedIds.get(uniqueHoistedId)!;
-				} else {
-					// Otherwise, create a unique id for this set of hoisted scripts
-					moduleId = `/astro/hoisted.js?q=${uniqueHoistedIds.size}`;
-					uniqueHoistedIds.set(uniqueHoistedId, moduleId);
-				}
-				topLevelImports.add(moduleId);
-
-				// Make sure to track that this page uses this set of hoisted scripts
-				if (internals.hoistedScriptIdToPagesMap.has(moduleId)) {
-					const pages = internals.hoistedScriptIdToPagesMap.get(moduleId);
-					pages!.add(astroModuleId);
-				} else {
-					internals.hoistedScriptIdToPagesMap.set(moduleId, new Set([astroModuleId]));
-					internals.hoistedScriptIdToHoistedMap.set(moduleId, hoistedScripts);
-				}
-			}
-
-			for (const specifier of topLevelImports) {
-				jsInput.add(specifier);
-			}
-		}
-
 		pageInput.add(astroModuleId);
 		facadeIdToPageDataMap.set(fileURLToPath(astroModuleURL), pageData);
 	}
@@ -114,10 +58,6 @@ export async function staticBuild(opts: StaticBuildOptions) {
 	// condition, so we are doing it ourselves
 	emptyDir(astroConfig.outDir, new Set('.git'));
 
-	timer.clientBuild = performance.now();
-	// Run client build first, so the assets can be fed into the SSR rendered version.
-	await clientBuild(opts, internals, jsInput);
-
 	// Build your project (SSR application code, assets, client JS, etc.)
 	timer.ssr = performance.now();
 	info(
@@ -130,6 +70,17 @@ export async function staticBuild(opts: StaticBuildOptions) {
 	const ssrResult = (await ssrBuild(opts, internals, pageInput)) as RollupOutput;
 	info(opts.logging, 'build', dim(`Completed in ${getTimeStat(timer.ssr, performance.now())}.`));
 
+	const clientInput = new Set<string>([
+		...internals.discoveredHydratedComponents,
+		...internals.discoveredClientOnlyComponents,
+		...astroConfig._ctx.renderers.map(r => r.clientEntrypoint).filter(a => a) as string[],
+		...internals.discoveredScripts,
+	]);
+
+	// Run client build first, so the assets can be fed into the SSR rendered version.
+	timer.clientBuild = performance.now();
+	await clientBuild(opts, internals, clientInput);
+
 	timer.generate = performance.now();
 	if (opts.buildConfig.staticMode) {
 		try {
@@ -138,6 +89,9 @@ export async function staticBuild(opts: StaticBuildOptions) {
 			await cleanSsrOutput(opts);
 		}
 	} else {
+		// Inject the manifest
+		await injectManifest(opts, internals)
+
 		info(opts.logging, null, `\n${bgMagenta(black(' finalizing server assets '))}\n`);
 		await ssrMoveAssets(opts);
 	}
@@ -190,6 +144,7 @@ async function ssrBuild(opts: StaticBuildOptions, internals: BuildInternals, inp
 			// SSR needs to be last
 			isBuildingToSSR(opts.astroConfig) &&
 				vitePluginSSR(opts, internals, opts.astroConfig._ctx.adapter!),
+			vitePluginAnalyzer(opts.astroConfig, internals)
 		],
 		publicDir: ssr ? false : viteConfig.publicDir,
 		root: viteConfig.root,

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

@@ -8,7 +8,6 @@ import type {
 } from '../../@types/astro';
 import type { ViteConfigWithSSR } from '../create-vite';
 import type { LogOptions } from '../logger/core';
-import type { ComponentPreload } from '../render/dev/index';
 import type { RouteCache } from '../render/route-cache';
 
 export type ComponentPath = string;
@@ -17,7 +16,6 @@ export type ViteID = string;
 export interface PageBuildData {
 	component: ComponentPath;
 	paths: string[];
-	preload: ComponentPreload;
 	route: RouteData;
 	moduleSpecifier: string;
 	css: Set<string>;