From dce72c6343e454dee7775c77964153d19bfe1a14 Mon Sep 17 00:00:00 2001
From: Daniel Lee <danielylee@google.com>
Date: Wed, 29 Oct 2025 18:54:11 -0700
Subject: [PATCH 1/2] BREAKING: Break TS build that uses functions.config()

---
 spec/v1/config.spec.ts | 7 +++++--
 src/v1/config.ts       | 4 ++--
 2 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/spec/v1/config.spec.ts b/spec/v1/config.spec.ts
index 45d51f09c..764e1a05b 100644
--- a/spec/v1/config.spec.ts
+++ b/spec/v1/config.spec.ts
@@ -26,11 +26,14 @@ import { config } from "../../src/v1/config";
 
 describe("config()", () => {
   it("throws an error with migration guidance", () => {
-    expect(config).to.throw(
+    expect(() => {
+      // @ts-expect-error - config is deprecated and typed as never to cause a build error
+      config();
+    }).to.throw(
       Error,
       "functions.config() has been removed in firebase-functions v7. " +
         "Migrate to environment parameters using the params module. " +
         "Migration guide: https://firebase.google.com/docs/functions/config-env#migrate-config"
     );
   });
-});
+});
\ No newline at end of file
diff --git a/src/v1/config.ts b/src/v1/config.ts
index 6b1522f33..7676f2870 100644
--- a/src/v1/config.ts
+++ b/src/v1/config.ts
@@ -27,10 +27,10 @@ export { firebaseConfig } from "../common/config";
  * Migrate to environment parameters using the `params` module immediately.
  * Migration guide: https://firebase.google.com/docs/functions/config-env#migrate-config
  */
-export function config(): Record<string, any> {
+export const config: never = (() => {
   throw new Error(
     "functions.config() has been removed in firebase-functions v7. " +
       "Migrate to environment parameters using the params module. " +
       "Migration guide: https://firebase.google.com/docs/functions/config-env#migrate-config"
   );
-}
+}) as unknown as never;
\ No newline at end of file

From 7d7a3bde68672081b0c0de1e5c378d81a99c5cd3 Mon Sep 17 00:00:00 2001
From: Daniel Lee <danielylee@google.com>
Date: Thu, 30 Oct 2025 09:50:39 -0700
Subject: [PATCH 2/2] Simplify as never cast.

---
 src/v1/config.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/v1/config.ts b/src/v1/config.ts
index 7676f2870..b50ce7b31 100644
--- a/src/v1/config.ts
+++ b/src/v1/config.ts
@@ -33,4 +33,4 @@ export const config: never = (() => {
       "Migrate to environment parameters using the params module. " +
       "Migration guide: https://firebase.google.com/docs/functions/config-env#migrate-config"
   );
-}) as unknown as never;
\ No newline at end of file
+}) as never;