fix(vercel): handle dots in source path for redirects (#9289)

* add fix

* add test

* add changeset

.changeset/rotten-socks-help.md

@@ -0,0 +1,5 @@
+---
+'@astrojs/vercel': patch
+---
+
+Fixes an issue where dots in redirects were incorrectly handled.

packages/integrations/vercel/src/lib/redirects.ts

@@ -32,11 +32,11 @@ function getMatchPattern(segments: RoutePart[][]) {
 											.replace(/#/g, '%23')
 											.replace(/%5B/g, '[')
 											.replace(/%5D/g, ']')
-											.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
+											.replace(/[*+?^${}()|[\]\\]/g, '\\$&');
 						})
 						.join('');
 		})
-		.join('');
+		.join('/');
 }
 
 function getReplacePattern(segments: RoutePart[][]) {

packages/integrations/vercel/test/redirects.test.js

@@ -16,6 +16,7 @@ describe('Redirects', () => {
 					destination: '/',
 				},
 				'/blog/[...slug]': '/team/articles/[...slug]',
+				'/Basic/http-2-0.html': '/posts/http2',
 			},
 			trailingSlash: 'always',
 		});
@@ -45,6 +46,15 @@ describe('Redirects', () => {
 		expect(threeRoute.status).to.equal(302);
 	});
 
+	it('define redirects for static files', async () => {
+		const config = await getConfig();
+
+		const staticRoute = config.routes.find((r) => r.src === '/Basic/http-2-0.html');
+		expect(staticRoute).to.not.be.undefined;
+		expect(staticRoute.headers.Location).to.equal('/posts/http2');
+		expect(staticRoute.status).to.equal(301);
+	});
+
 	it('defines dynamic routes', async () => {
 		const config = await getConfig();