feat: generate sitemap at build time

Author: johnshift

.gitignore

@@ -59,4 +59,6 @@ apps/
 
 instructions/
 
-*.dummy*
+*.dummy*
+
+sitemap.xml

package.json

@@ -4,6 +4,7 @@
   "private": true,
   "scripts": {
     "dev": "next dev",
+    "prebuild": "node tools/scripts/generate-sitemap.js",
     "build": "next build",
     "start": "next start",
     "lint": "eslint ./src",

tools/scripts/generate-sitemap.js

@@ -0,0 +1,47 @@
+/* eslint-disable @typescript-eslint/no-var-requires */
+// scripts/generate-sitemap.js
+
+const fs = require('fs');
+const path = require('path');
+
+const SITEMAP_URL = 'https://middleware.jobstash.xyz/app/sitemap/ev';
+const PUBLIC_DIR = path.join(process.cwd(), 'public');
+
+/**
+ * Fetches sitemap from middleware API and writes to public/sitemap.xml
+ * Creates public directory if it doesn't exist
+ * Only override the file if the contents have changed
+ */
+async function generateSitemap() {
+  console.log(`Fetching sitemap from ${SITEMAP_URL}...`);
+
+  const response = await fetch(SITEMAP_URL);
+  if (!response.ok) {
+    console.error(`Failed to fetch sitemap: ${response.statusText}`);
+    process.exit(1);
+  }
+
+  const newSitemap = await response.text();
+  const sitemapPath = path.join(PUBLIC_DIR, 'sitemap.xml');
+
+  if (!fs.existsSync(PUBLIC_DIR)) {
+    fs.mkdirSync(PUBLIC_DIR, { recursive: true });
+  }
+
+  let currentSitemap = null;
+  if (fs.existsSync(sitemapPath)) {
+    currentSitemap = fs.readFileSync(sitemapPath, 'utf-8');
+  }
+
+  if (currentSitemap !== newSitemap) {
+    fs.writeFileSync(sitemapPath, newSitemap);
+    console.log(`Sitemap updated at ${sitemapPath}`);
+  } else {
+    console.log('No changes in sitemap. File not updated.');
+  }
+}
+
+generateSitemap().catch((err) => {
+  console.error('Error generating sitemap:', err);
+  process.exit(1);
+});