Fix umami script not added

site/package.json

@@ -9,6 +9,7 @@
     "fetch-content": "tsx scripts/fetch-content.ts",
     "cache:clear": "tsx scripts/cache-clear.ts",
     "verify:blog": "npm run build && tsx scripts/verify-blog-build.ts",
+    "verify:umami": "npm run build && tsx scripts/verify-umami-in-dist.ts",
     "typecheck": "astro check",
     "format": "prettier -w .",
     "format:check": "prettier -c .",

site/scripts/verify-umami-in-dist.ts

@@ -0,0 +1,39 @@
+import "dotenv/config";
+
+import { readFile } from "node:fs/promises";
+
+function fail(msg: string): never {
+  // eslint-disable-next-line no-console
+  console.error(`[verify:umami] ${msg}`);
+  process.exit(1);
+}
+
+function info(msg: string) {
+  // eslint-disable-next-line no-console
+  console.log(`[verify:umami] ${msg}`);
+}
+
+async function main() {
+  const html = await readFile("dist/index.html", "utf8");
+
+  const scriptUrl = process.env.PUBLIC_UMAMI_SCRIPT_URL || "";
+  const websiteId = process.env.PUBLIC_UMAMI_WEBSITE_ID || "";
+
+  const expectsEnabled = Boolean(scriptUrl && websiteId);
+  const hasWebsiteId = html.includes('data-website-id="');
+  const hasScriptUrl = scriptUrl ? html.includes(`src="${scriptUrl}"`) : false;
+
+  if (expectsEnabled) {
+    if (!hasWebsiteId) fail(`expected Umami enabled, but data-website-id not found in dist/index.html`);
+    if (!hasScriptUrl)
+      fail(`expected Umami enabled, but src="${scriptUrl}" not found in dist/index.html`);
+    info("ok (umami script present)");
+    return;
+  }
+
+  // When not configured, the site should not render a script tag.
+  if (hasWebsiteId) fail("expected Umami disabled, but data-website-id was found in dist/index.html");
+  info("ok (umami disabled, no script rendered)");
+}
+
+main().catch((e) => fail(String(e)));