Switched to type: module.

scripts/build-geo.js

@@ -0,0 +1,56 @@
+/* eslint-disable no-console */
+import 'dotenv/config';
+import fs from 'node:fs';
+import path from 'node:path';
+import https from 'https';
+import zlib from 'zlib';
+import tar from 'tar';
+
+if (process.env.VERCEL) {
+  console.log('Vercel environment detected. Skipping geo setup.');
+  process.exit(0);
+}
+
+const db = 'GeoLite2-City';
+
+let url = `https://raw.githubusercontent.com/GitSquared/node-geolite2-redist/master/redist/${db}.tar.gz`;
+
+if (process.env.MAXMIND_LICENSE_KEY) {
+  url =
+    `https://download.maxmind.com/app/geoip_download` +
+    `?edition_id=${db}&license_key=${process.env.MAXMIND_LICENSE_KEY}&suffix=tar.gz`;
+}
+
+const dest = path.resolve(process.cwd(), 'geo');
+
+if (!fs.existsSync(dest)) {
+  fs.mkdirSync(dest);
+}
+
+const download = url =>
+  new Promise(resolve => {
+    https.get(url, res => {
+      resolve(res.pipe(zlib.createGunzip({})).pipe(tar.t()));
+    });
+  });
+
+download(url).then(
+  res =>
+    new Promise((resolve, reject) => {
+      res.on('entry', entry => {
+        if (entry.path.endsWith('.mmdb')) {
+          const filename = path.join(dest, path.basename(entry.path));
+          entry.pipe(fs.createWriteStream(filename));
+
+          console.log('Saved geo database:', filename);
+        }
+      });
+
+      res.on('error', e => {
+        reject(e);
+      });
+      res.on('finish', () => {
+        resolve();
+      });
+    }),
+);