fix(vercel): handle integration static assets in non-static sites (#516)

* fix: arrange assets for server output too

* Changeset

* Format

2 files changed, 16 insertions, 14 deletions

diff --git a/packages/integrations/vercel/src/index.ts b/packages/integrations/vercel/src/index.ts
index af2ede2f2..6b46512ec 100644
--- a/packages/integrations/vercel/src/index.ts
+++ b/packages/integrations/vercel/src/index.ts
@@ -220,11 +220,12 @@ export default function vercelAdapter({
 							name: 'astro:copy-vercel-output',
 							hooks: {
 								'astro:build:done': async () => {
-									if (_buildOutput === 'static') {
-										cpSync(_config.outDir, new URL('./.vercel/output/static/', _config.root), {
-											recursive: true,
-										});
-									}
+									logger.info('Copying static files to .vercel/output/static');
+									const staticDir =
+										_buildOutput === 'static' ? _config.outDir : _config.build.client;
+									cpSync(staticDir, new URL('./.vercel/output/static/', _config.root), {
+										recursive: true,
+									});
 								},
 							},
 						},
@@ -329,9 +330,6 @@ export default function vercelAdapter({
 					mkdirSync(new URL('./.vercel/output/server/', _config.root));
 
 					if (_buildOutput !== 'static') {
-						cpSync(_config.build.client, new URL('./.vercel/output/static/', _config.root), {
-							recursive: true,
-						});
 						cpSync(_config.build.server, new URL('./.vercel/output/_functions/', _config.root), {
 							recursive: true,
 						});
diff --git a/packages/integrations/vercel/test/integration-assets.test.js b/packages/integrations/vercel/test/integration-assets.test.js
index 76489974c..6bf8edc4e 100644
--- a/packages/integrations/vercel/test/integration-assets.test.js
+++ b/packages/integrations/vercel/test/integration-assets.test.js
@@ -3,17 +3,21 @@ import { before, describe, it } from 'node:test';
 import { loadFixture } from './test-utils.js';
 
 describe('Assets generated by integrations', () => {
-	/** @type {import('./test-utils.js').Fixture} */
-	let fixture;
-
-	before(async () => {
-		fixture = await loadFixture({
+	it('moves static assets generated by integrations to the correct location: static output', async () => {
+		const fixture = await loadFixture({
 			root: './fixtures/integration-assets/',
 		});
 		await fixture.build();
+		const sitemap = await fixture.readFile('../.vercel/output/static/sitemap-index.xml');
+		assert(sitemap.includes('<sitemapindex xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">'));
 	});
 
-	it('moves static assets generated by integrations to the correct location', async () => {
+	it('moves static assets generated by integrations to the correct location: server output', async () => {
+		const fixture = await loadFixture({
+			root: './fixtures/integration-assets/',
+			output: 'server',
+		});
+		await fixture.build();
 		const sitemap = await fixture.readFile('../.vercel/output/static/sitemap-index.xml');
 		assert(sitemap.includes('<sitemapindex xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">'));
 	});