1 files changed, 19 insertions, 7 deletions
diff --git a/tools/lint.js b/tools/lint.js
index 14567ed1d..56662fdd8 100755
--- a/tools/lint.js
+++ b/tools/lint.js
@@ -2,6 +2,7 @@
 // Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
 import { buildMode, getPrebuilt, getSources, join, ROOT_PATH } from "./util.js";
 import { checkCopyright } from "./copyright_checker.js";
+import * as ciFile from "../.github/workflows/ci.generate.ts";
 
 const promises = [];
 
@@ -12,17 +13,18 @@ if (!js && !rs) {
   rs = true;
 }
 
-if (js) {
-  promises.push(dlint());
-  promises.push(dlintPreferPrimordials());
-}
-
 if (rs) {
   promises.push(clippy());
 }
 
-if (js && rs) {
-  promises.push(checkCopyright());
+if (js) {
+  promises.push(dlint());
+  promises.push(dlintPreferPrimordials());
+  promises.push(ensureCiYmlUpToDate());
+
+  if (rs) {
+    promises.push(checkCopyright());
+  }
 }
 
 const results = await Promise.allSettled(promises);
@@ -164,3 +166,13 @@ async function clippy() {
     throw new Error("clippy failed");
   }
 }
+
+async function ensureCiYmlUpToDate() {
+  const expectedCiFileText = ciFile.generate();
+  const actualCiFileText = await Deno.readTextFile(ciFile.CI_YML_URL);
+  if (expectedCiFileText !== actualCiFileText) {
+    throw new Error(
+      "./.github/workflows/ci.yml is out of date. Run: ./.github/workflows/ci.generate.ts",
+    );
+  }
+}