Initial rewrite

scripts/check-no-js.mjs

@@ -0,0 +1,53 @@
+import { readdir, readFile, stat } from 'node:fs/promises';
+import path from 'node:path';
+
+const dist = path.resolve('dist');
+const failures = [];
+
+async function walk(dir) {
+  const entries = await readdir(dir, { withFileTypes: true });
+  const files = [];
+
+  for (const entry of entries) {
+    const fullPath = path.join(dir, entry.name);
+    if (entry.isDirectory()) {
+      files.push(...(await walk(fullPath)));
+    } else {
+      files.push(fullPath);
+    }
+  }
+
+  return files;
+}
+
+try {
+  await stat(dist);
+} catch {
+  throw new Error('dist/ does not exist. Run npm run build first.');
+}
+
+const files = await walk(dist);
+const jsFiles = files.filter((file) => file.endsWith('.js'));
+
+if (jsFiles.length > 0) {
+  failures.push(
+    `Unexpected JavaScript assets:\n${jsFiles.map((file) => `- ${file}`).join('\n')}`
+  );
+}
+
+for (const file of files.filter((candidate) => candidate.endsWith('.html'))) {
+  const html = await readFile(file, 'utf8');
+  const scripts = (
+    html.match(/<script\b(?![^>]*type=["']application\/ld\+json["'])[^>]*>/gi) ?? []
+  ).filter((script) => !script.includes('data-theme-script'));
+  if (scripts?.length) {
+    failures.push(`Unexpected script tag in ${file}:\n${scripts.join('\n')}`);
+  }
+}
+
+if (failures.length > 0) {
+  console.error(failures.join('\n\n'));
+  process.exit(1);
+}
+
+console.log('No unexpected JavaScript found in dist/.');