CLDR-17935 site: add crawler sitemap (#4028)

docs/site/.gitignore

@@ -1,3 +1,5 @@
 /node_modules
 /assets/json
 /assets/vendor
+/sitemap.xml
+/sitemap.md

docs/site/_layouts/page.html

@@ -17,9 +17,7 @@
 			</div>
 		</div>
 		<div class="message"><i>This navigation UI is temporary, just to give access to the pages.</i></div>
-
-		<!-- <div class="bar"><a href="http://www.unicode.org" class="bar">Home</a>
-			| <a href="http://www.unicode.org/search/" class="bar">Search</a></div> -->
+		<!-- <div class="bar"><a href="/sitemap" class="bar">Site Map</a></div> -->
 	</header>
 
 

docs/site/assets/js/build.mjs

@@ -4,8 +4,10 @@ import * as fs from "node:fs/promises";
 import * as path from "node:path";
 import { default as process } from "node:process";
 import { default as matter } from "gray-matter";
+import { SitemapStream, streamToPromise } from "sitemap";
+import { Readable } from "node:stream";
 
-const SKIP_THESE = /(node_modules|\.jekyll-cache)/;
+const SKIP_THESE = /(node_modules|\.jekyll-cache|^sitemap.*)/;
 
 async function processFile(d, fullPath, out) {
   const f = await fs.readFile(fullPath, "utf-8");
@@ -40,6 +42,49 @@ async function traverse(d, out) {
   return Promise.all(promises);
 }
 
+/** replace a/b/c.md with a/b/c */
+function dropmd(p) {
+  return p.replace(/\.md$/, "");
+}
+
+async function writeSiteMaps(out) {
+  // simple list of links
+  const links = await Promise.all(
+    out.all.map(async ({ fullPath, title }) => {
+      const stat = await fs.stat(fullPath);
+      return {
+        url: dropmd(`/${fullPath}`),
+        lastmod: stat.mtime.toISOString(),
+      };
+    })
+  );
+  const stream = new SitemapStream({ hostname: "https://cldr.unicode.org" });
+  const data = (
+    await streamToPromise(Readable.from(links).pipe(stream))
+  ).toString();
+  await fs.writeFile("./sitemap.xml", data, "utf-8");
+  console.log("Wrote sitemap.xml");
+
+  /*
+  const coll = new Intl.Collator(["und"]);
+  const allSorted = [...out.all].sort((a, b) =>
+    coll.compare(a.fullPath, b.fullPath)
+  );
+  await fs.writeFile(
+    "./sitemap.md",
+    `---\ntitle: Site Map\n---\n\n` +
+      allSorted
+        .map(
+          ({ fullPath, title }) =>
+            `- [/${fullPath}](/${dropmd(fullPath)}) - ${title}`
+        )
+        .join("\n"),
+    "utf-8"
+  );
+  console.log("Wrote sitemap.md");
+  */
+}
+
 async function main() {
   const out = {
     all: [],
@@ -48,6 +93,8 @@ async function main() {
   await fs.mkdir("assets/json/", { recursive: true });
   await traverse(".", out);
   await fs.writeFile("assets/json/tree.json", JSON.stringify(out, null, " "));
+  console.log("Wrote assets/json/tree.json");
+  await writeSiteMaps(out);
 }
 
 main().then(

docs/site/package.json

@@ -14,6 +14,7 @@
   "private": true,
   "dependencies": {
     "gray-matter": "^4.0.3",
+    "sitemap": "^8.0.0",
     "vue": "^3.5.0"
   }
 }

docs/site/robots.txt

@@ -0,0 +1 @@
+Sitemap: https://cldr.unicode.org/sitemap.xml