Expose `file` and `url` for Astro files (#3385)

* feat: update test

* feat: return `file` and `url` for astro files

* chore: add changeset

* fix: use private names $$file and $$url

* test: update markdown test

* chore: update fileId logic to strip query params

8 files changed, 61 insertions, 14 deletions

diff --git a/.changeset/quiet-pumpkins-hunt.md b/.changeset/quiet-pumpkins-hunt.md
new file mode 100644
index 000000000..17cd703c2
--- /dev/null
+++ b/.changeset/quiet-pumpkins-hunt.md
@@ -0,0 +1,5 @@
+---
+'astro': patch
+---
+
+Expose `file` and `url` properties when fetching `.astro` files with `Astro.glob()`
diff --git a/packages/astro/src/@types/astro.ts b/packages/astro/src/@types/astro.ts
index 85e3d26c5..642fe9ffb 100644
--- a/packages/astro/src/@types/astro.ts
+++ b/packages/astro/src/@types/astro.ts
@@ -216,7 +216,7 @@ export interface AstroGlobalPartial {
 	 *
 	 * [Astro reference](https://docs.astro.build/en/reference/api-reference/#astroglob)
 	 */
-	glob(globStr: `${any}.astro`): Promise<ComponentInstance[]>;
+	glob(globStr: `${any}.astro`): Promise<AstroInstance[]>;
 	glob<T extends Record<string, any>>(globStr: `${any}.md`): Promise<MarkdownInstance<T>[]>;
 	glob<T extends Record<string, any>>(globStr: string): Promise<T[]>;
 	/**
@@ -752,6 +752,12 @@ export interface ComponentInstance {
 	getStaticPaths?: (options: GetStaticPathsOptions) => GetStaticPathsResult;
 }
 
+export interface AstroInstance {
+	file: string;
+	url: string | undefined;
+	default: AstroComponentFactory;
+}
+
 export interface MarkdownInstance<T extends Record<string, any>> {
 	frontmatter: T;
 	file: string;
diff --git a/packages/astro/src/vite-plugin-astro/index.ts b/packages/astro/src/vite-plugin-astro/index.ts
index b13b85494..4589adce5 100644
--- a/packages/astro/src/vite-plugin-astro/index.ts
+++ b/packages/astro/src/vite-plugin-astro/index.ts
@@ -14,6 +14,7 @@ import ancestor from 'common-ancestor-path';
 import { trackCSSDependencies, handleHotUpdate } from './hmr.js';
 import { isRelativePath, startsWithForwardSlash } from '../core/path.js';
 import { PAGE_SCRIPT_ID, PAGE_SSR_SCRIPT_ID } from '../vite-plugin-scripts/index.js';
+import { getFileInfo } from '../vite-plugin-utils/index.js';
 import { resolvePages } from '../core/util.js';
 
 const FRONTMATTER_PARSE_REGEXP = /^\-\-\-(.*)^\-\-\-/ms;
@@ -168,6 +169,7 @@ export default function astro({ config, logging }: AstroPluginOptions): vite.Plu
 
 			try {
 				const transformResult = await cachedCompilation(compileProps);
+				const { fileId: file, fileUrl: url } = getFileInfo(id, config);
 
 				// Compile all TypeScript to JavaScript.
 				// Also, catches invalid JS/TS in the compiled output before returning.
@@ -180,6 +182,7 @@ export default function astro({ config, logging }: AstroPluginOptions): vite.Plu
 				});
 
 				let SUFFIX = '';
+				SUFFIX += `\nconst $$file = ${JSON.stringify(file)};\nconst $$url = ${JSON.stringify(url)};export { $$file as file, $$url as url };\n`;
 				// Add HMR handling in dev mode.
 				if (!resolvedConfig.isProduction) {
 					// HACK: extract dependencies from metadata until compiler static extraction handles them
diff --git a/packages/astro/src/vite-plugin-markdown/index.ts b/packages/astro/src/vite-plugin-markdown/index.ts
index 8e702054d..9c7577fc3 100644
--- a/packages/astro/src/vite-plugin-markdown/index.ts
+++ b/packages/astro/src/vite-plugin-markdown/index.ts
@@ -9,8 +9,9 @@ import type { Plugin } from 'vite';
 import type { AstroConfig } from '../@types/astro';
 import { PAGE_SSR_SCRIPT_ID } from '../vite-plugin-scripts/index.js';
 import { pagesVirtualModuleId } from '../core/app/index.js';
-import { appendForwardSlash, prependForwardSlash } from '../core/path.js';
+import { prependForwardSlash } from '../core/path.js';
 import { resolvePages, viteID } from '../core/util.js';
+import { getFileInfo } from '../vite-plugin-utils/index.js';
 
 interface AstroPluginOptions {
 	config: AstroConfig;
@@ -78,17 +79,7 @@ export default function markdown({ config }: AstroPluginOptions): Plugin {
 			// Return the file's JS representation, including all Markdown
 			// frontmatter and a deferred `import() of the compiled markdown content.
 			if (id.endsWith(`.md${MARKDOWN_IMPORT_FLAG}`)) {
-				const sitePathname = appendForwardSlash(
-					config.site ? new URL(config.base, config.site).pathname : config.base
-				);
-
-				const fileId = id.replace(MARKDOWN_IMPORT_FLAG, '');
-				let fileUrl = fileId.includes('/pages/')
-					? fileId.replace(/^.*?\/pages\//, sitePathname).replace(/(\/index)?\.md$/, '')
-					: undefined;
-				if (fileUrl && config.trailingSlash === 'always') {
-					fileUrl = appendForwardSlash(fileUrl);
-				}
+				const { fileId, fileUrl } = getFileInfo(id, config);
 
 				const source = await fs.promises.readFile(fileId, 'utf8');
 				const { data: frontmatter } = matter(source);
diff --git a/packages/astro/src/vite-plugin-utils/index.ts b/packages/astro/src/vite-plugin-utils/index.ts
new file mode 100644
index 000000000..d6ccd58b0
--- /dev/null
+++ b/packages/astro/src/vite-plugin-utils/index.ts
@@ -0,0 +1,17 @@
+import type { AstroConfig } from '../@types/astro';
+import { appendForwardSlash } from '../core/path.js';
+
+export function getFileInfo(id: string, config: AstroConfig) {
+	const sitePathname = appendForwardSlash(
+		config.site ? new URL(config.base, config.site).pathname : config.base
+	);
+
+	const fileId = id.split('?')[0];
+	let fileUrl = fileId.includes('/pages/')
+			? fileId.replace(/^.*?\/pages\//, sitePathname).replace(/(\/index)?\.(md|astro)$/, '')
+			: undefined;
+	if (fileUrl && config.trailingSlash === 'always') {
+		fileUrl = appendForwardSlash(fileUrl);
+	}
+	return { fileId, fileUrl };
+}
diff --git a/packages/astro/test/astro-global.test.js b/packages/astro/test/astro-global.test.js
index 17520dacf..799f89071 100644
--- a/packages/astro/test/astro-global.test.js
+++ b/packages/astro/test/astro-global.test.js
@@ -2,7 +2,7 @@ import { expect } from 'chai';
 import * as cheerio from 'cheerio';
 import { loadFixture } from './test-utils.js';
 
-describe('Astro.*', () => {
+describe('Astro Global', () => {
 	let fixture;
 
 	before(async () => {
@@ -76,5 +76,12 @@ describe('Astro.*', () => {
 			const $ = cheerio.load(html);
 			expect($('.post-url').attr('href')).to.equal('/blog/post/post-2');
 		});
+
+		it('Astro.glob() correctly returns meta info for MD and Astro files', async () => {
+			const html = await fixture.readFile('/glob/index.html');
+			const $ = cheerio.load(html);
+			expect($('[data-file]').length).to.equal(3);
+			expect($('.post-url[href]').length).to.equal(3);
+		});
 	});
 });
diff --git a/packages/astro/test/fixtures/astro-global/src/pages/glob.astro b/packages/astro/test/fixtures/astro-global/src/pages/glob.astro
new file mode 100644
index 000000000..cf237581a
--- /dev/null
+++ b/packages/astro/test/fixtures/astro-global/src/pages/glob.astro
@@ -0,0 +1,17 @@
+---
+const data = await Astro.glob('./post/**/*');
+---
+
+<html>
+  <head>
+    <title>All Posts</title>
+  </head>
+  <body>
+    {data.map((page: any) => (
+      <div>
+        <h1 data-file={page.file} />Title</h1>
+        <a class="post-url" href={page.url}>Read</a>
+      </div>
+    ))}
+  </body>
+</html>
diff --git a/packages/astro/test/fixtures/astro-global/src/pages/post/post-3.astro b/packages/astro/test/fixtures/astro-global/src/pages/post/post-3.astro
new file mode 100644
index 000000000..31826b62d
--- /dev/null
+++ b/packages/astro/test/fixtures/astro-global/src/pages/post/post-3.astro
@@ -0,0 +1 @@
+<h1>Post 3</h1>