chore: use custom script

docs/package.json

@@ -17,7 +17,7 @@
         "start": "npm-run-all build:sass --parallel watch:*",
         "build": "npm-run-all build:sass build:eleventy images",
         "lint:scss": "stylelint \"**/*.{scss,html}\"",
-        "lint:links": "hyperlink ./_site/index.html --canonicalroot https://eslint.org/docs/head/ -r --internal ./_site/index.html --pretty --skip https:// --skip fragment-redirect --skip migrating-to --skip /blog --skip /play --skip /team --skip /donate --skip /docs/latest --skip _site/rules/null > internal-links.tap; cat internal-links.tap | tap-spot",
+        "lint:links": "hyperlink ./_site/index.html --canonicalroot https://eslint.org/docs/head/ -r --internal ./_site/index.html --pretty --skip https:// --skip fragment-redirect --skip migrating-to --skip /blog --skip /play --skip /team --skip /donate --skip /docs/latest --skip _site/rules/null",
         "lint:fix:scss": "npm run lint:scss -- --fix"
     },
     "devDependencies": {

docs/tools/validate-links.js

@@ -0,0 +1,49 @@
+const path = require("path");
+const TapRender = require("@munter/tap-render");
+const spot = require("tap-spot");
+const hyperlink = require("hyperlink");
+
+const t = new TapRender();
+
+t.pipe(spot()).pipe(process.stdout);
+
+const skipPatterns = [
+    "https://",
+    "fragment-redirect",
+    "migrating-to",
+    "/blog",
+    "/play",
+    "/team",
+    "/donate",
+    "/docs/latest",
+    "_site/rules/null"
+];
+
+const skipFilter = (report) =>
+    Object.values(report).some((value) =>
+        skipPatterns.some((pattern) => String(value).includes(pattern))
+    );
+
+(async () => {
+    try {
+        await hyperlink(
+            {
+                inputUrls: ["../_site/index.html"],
+                root: path.resolve(__dirname, "../_site"),
+                canonicalRoot: "https://eslint.org/docs/head/",
+                recursive: true,
+                internalOnly: true,
+                pretty: true,
+                concurrency: 25,
+                skipFilter,
+            },
+            t
+        );
+    } catch (err) {
+        console.log(err.stack);
+        process.exit(1);
+    }
+    const results = t.close();
+
+    process.exit(results.fail ? 1 : 0);
+})();