From 5d3cee4271b9c736dbd774ae406ea338af5bf544 Mon Sep 17 00:00:00 2001
From: Timo <6156589+Shik3i@users.noreply.github.com>
Date: Sun, 19 Jul 2026 21:41:45 +0200
Subject: [PATCH] fix: update sitemap dates for dirty sources

---
 scripts/test-website-theme.mjs |  6 +++-
 website/build.cjs              | 58 ++++++++++++++++++++++++++++++----
 2 files changed, 56 insertions(+), 8 deletions(-)

diff --git a/scripts/test-website-theme.mjs b/scripts/test-website-theme.mjs
index bab02e3..c4630de 100644
--- a/scripts/test-website-theme.mjs
+++ b/scripts/test-website-theme.mjs
@@ -85,7 +85,11 @@ for (const metadata of requiredSupportSocialMetadata) {
 }
 if (!websiteBuild.includes("['log', '-1', '--format=%cs', '--', ...sourceFiles]")
     || !websiteBuild.includes("lastmod(['website/site-access-help.html'])")
-    || /const today = new Date\(\)/.test(websiteBuild)) {
+    || !websiteBuild.includes("['rev-parse', '--is-shallow-repository']")
+    || !websiteBuild.includes("['diff', '--name-only', '--']")
+    || !websiteBuild.includes("['diff', '--cached', '--name-only', '--']")
+    || !websiteBuild.includes("['ls-files', '--others', '--exclude-standard', '--']")
+    || !websiteBuild.includes('sourceFiles.some(file => dirtySourceFiles.has(file))')) {
   throw new Error('Sitemap lastmod values must come from the mapped source files in Git');
 }
 const documentedRelayUrls = [...llmsText.matchAll(/`(wss:\/\/[^`\s]+)`/g)].map(([, value]) => new URL(value));
diff --git a/website/build.cjs b/website/build.cjs
index 57c4a46..0b5d78d 100644
--- a/website/build.cjs
+++ b/website/build.cjs
@@ -719,18 +719,61 @@ function generateSitemap(websiteDir, wwwDir) {
 
     const repoRoot = path.resolve(websiteDir, '..');
     const lastModifiedCache = new Map();
+    const dirtySourceFiles = new Set();
+    let gitHistoryAvailable = false;
+    let usedDirtySourceDate = false;
+
+    try {
+      const isInsideWorkTree = execFileSync(
+        'git', ['rev-parse', '--is-inside-work-tree'],
+        { cwd: repoRoot, encoding: 'utf8', stdio: ['ignore', 'pipe', 'ignore'] }
+      ).trim() === 'true';
+      const isShallow = execFileSync(
+        'git', ['rev-parse', '--is-shallow-repository'],
+        { cwd: repoRoot, encoding: 'utf8', stdio: ['ignore', 'pipe', 'ignore'] }
+      ).trim() === 'true';
+      gitHistoryAvailable = isInsideWorkTree && !isShallow;
+
+      if (gitHistoryAvailable) {
+        const dirtyCommands = [
+          ['diff', '--name-only', '--'],
+          ['diff', '--cached', '--name-only', '--'],
+          ['ls-files', '--others', '--exclude-standard', '--']
+        ];
+        for (const args of dirtyCommands) {
+          const output = execFileSync(
+            'git', args,
+            { cwd: repoRoot, encoding: 'utf8', stdio: ['ignore', 'pipe', 'ignore'] }
+          );
+          for (const file of output.split(/\r?\n/).filter(Boolean)) {
+            dirtySourceFiles.add(file.replaceAll('\\', '/'));
+          }
+        }
+      }
+    } catch (_) {
+      gitHistoryAvailable = false;
+    }
 
     function getLastModified(sourceFiles) {
       const cacheKey = sourceFiles.slice().sort().join('\0');
       if (lastModifiedCache.has(cacheKey)) return lastModifiedCache.get(cacheKey);
+      if (!gitHistoryAvailable) {
+        lastModifiedCache.set(cacheKey, null);
+        return null;
+      }
       let date = null;
       try {
-        const output = execFileSync(
-          'git',
-          ['log', '-1', '--format=%cs', '--', ...sourceFiles],
-          { cwd: repoRoot, encoding: 'utf8', stdio: ['ignore', 'pipe', 'ignore'] }
-        ).trim();
-        if (/^\d{4}-\d{2}-\d{2}$/.test(output)) date = output;
+        if (sourceFiles.some(file => dirtySourceFiles.has(file))) {
+          usedDirtySourceDate = true;
+          date = new Date().toISOString().slice(0, 10);
+        } else {
+          const output = execFileSync(
+            'git',
+            ['log', '-1', '--format=%cs', '--', ...sourceFiles],
+            { cwd: repoRoot, encoding: 'utf8', stdio: ['ignore', 'pipe', 'ignore'] }
+          ).trim();
+          if (/^\d{4}-\d{2}-\d{2}$/.test(output)) date = output;
+        }
       } catch (_) {
         // Source archives and minimal deployment environments may not contain
         // Git metadata. Omitting lastmod is more accurate than inventing a date.
@@ -816,6 +859,7 @@ function generateSitemap(websiteDir, wwwDir) {
 
     fs.writeFileSync(path.join(wwwDir, 'sitemap.xml'), xml.trim() + '\n', 'utf8');
     const datedEntries = (xml.match(/<lastmod>/g) || []).length;
-    console.log(`  ✓ Dynamically generated sitemap.xml with ${datedEntries} Git-derived modification dates`);
+    const dateSource = usedDirtySourceDate ? 'Git/working-tree-derived' : 'Git-derived';
+    console.log(`  ✓ Dynamically generated sitemap.xml with ${datedEntries} ${dateSource} modification dates`);
 }
 compile().catch(err => { console.error('Build failed:', err); process.exit(1); });