✨ Port to cloudflare

functions/index.ts

@@ -0,0 +1,80 @@
+import { parse, Node, type HTMLElement } from "node-html-parser";
+
+const kernelUrl = "https://www.kernel.org/";
+
+interface Env {
+  KV: KVNamespace;
+}
+
+const extractData = (dom: HTMLElement) => {
+  const result = dom
+    ?.querySelector(
+      "html body#index.home aside#featured.body article table#releases"
+    )
+    ?.childNodes.filter((node) => {
+      return (
+        node.nodeType === 1 &&
+        (node as Node & { rawTagName: string }).rawTagName === "tr"
+      );
+    })
+    .map((node) => node.childNodes)
+    .map((nodeList) =>
+      nodeList.filter(
+        (node) => (node as Node & { rawTagName: string }).rawTagName === "td"
+      )
+    )
+    .map((nodeList) => nodeList.map((node) => node.childNodes).flat())
+    .map((nodeList) => {
+      const [categoryNode, versionNode, dateNode] = nodeList;
+      const version = versionNode.childNodes[0].textContent;
+      const packageName = `linux${
+        version.split("-")[0].replace(".", "").split(".")[0]
+      }`;
+      return {
+        category: categoryNode.textContent.replace(":", ""),
+        version,
+        date: dateNode.textContent,
+        packageName,
+      };
+    });
+
+  return result;
+};
+
+export const onRequest: PagesFunction<Env> = async (context) => {
+  let cache = caches.default;
+  const cachedResponse = await cache.match(context.request);
+
+  if (cachedResponse) {
+    console.log("Cache hit");
+    return cachedResponse;
+  }
+
+  const url = new URL(context.request.url);
+  const category = url.searchParams.get("category");
+  const version = url.searchParams.get("version");
+  console.log({ category, version });
+
+  const html = await (await fetch(kernelUrl, {
+    cf: {
+      cacheTtl: 60 * 60,
+    }
+  })).text();
+
+  const dom = parse(html);
+
+  const result = extractData(dom)
+    .filter((el) => !category || el.category === category)
+    .filter((el) => !version || el.version.startsWith(version));
+
+  const response = new Response(JSON.stringify(result), {
+    headers: {
+      "content-type": "application/json",
+      expires: new Date(Date.now() + 1000 * 60 * 60).toUTCString(),
+    },
+  });
+
+  cache.put(context.request, response.clone());
+
+  return response;
+};

functions/tsconfig.json

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+{
+  "compilerOptions": {
+    "target": "esnext",
+    "module": "NodeNext",
+    "lib": ["esnext"],
+    "types": ["@cloudflare/workers-types"],
+    "moduleResolution": "NodeNext"
+  }
+}