From 8100c5cb2b60780c35c38461a0a279d7bfcdd227 Mon Sep 17 00:00:00 2001
From: "Javier de la Rubia (@fjdelarubia)" <javier.jrt@gmail.com>
Date: Mon, 12 Aug 2024 21:13:40 +0200
Subject: [PATCH] fix: Add html extension if build.format is file

---
 packages/integrations/sitemap/src/index.ts | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/packages/integrations/sitemap/src/index.ts b/packages/integrations/sitemap/src/index.ts
index 057fc2371d..6b91246264 100644
--- a/packages/integrations/sitemap/src/index.ts
+++ b/packages/integrations/sitemap/src/index.ts
@@ -132,6 +132,18 @@ const createPlugin = (options?: SitemapOptions): AstroIntegration => {
 
 					pageUrls = Array.from(new Set([...pageUrls, ...routeUrls, ...(customPages ?? [])]));
 
+					if(config.build.format === 'file') {
+						pageUrls = pageUrls.map((url) => {
+
+							if(url.endsWith('/')) {
+								return url;
+							}
+
+							return url + '.html';
+
+						});
+					}
+
 					try {
 						if (filter) {
 							pageUrls = pageUrls.filter(filter);