Add automatic CNAME script

Author: Rikthepixel

package.json

@@ -11,9 +11,10 @@
     "script:gen-articles-index": "node ./scripts/generateArticlesIndex.js",
     "script:gen-sitemap": "node ./scripts/generateSitemap.js",
     "script:gen-robots": "node ./scripts/generateRobots.js",
+    "script:gen-cname": "node ./scripts/generateCName.js",
 
     "build": "next build && next export",
-    "postbuild": "npm run script:gen-sitemap && npm run script:gen-robots"
+    "postbuild": "npm run script:gen-sitemap && npm run script:gen-robots && npm run script:gen-cname"
   },
   "dependencies": {
     "@headlessui/react": "^1.7.13",

public/CNAME

@@ -0,0 +1,14 @@
+const path = require("path");
+const fs = require("fs/promises");
+
+const dotenv = require("dotenv");
+dotenv.config({ path: path.resolve(__dirname, "../.env") });
+dotenv.config({ path: path.resolve(__dirname, "../.env.local"), override: true });
+
+const run = async () => {
+  const outDir = path.resolve(__dirname, "../out");
+  const url = new URL(process.env.NEXT_PUBLIC_FRONTEND_URL)
+  fs.writeFile(path.join(outDir, "CNAME"), url.host);
+};
+
+run();