From 2a9b8364291ea757fd5be46ea0df6d1b93818347 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Kr=C3=A6n=20Hansen?= <mail@kraenhansen.dk>
Date: Fri, 19 Sep 2025 20:31:29 +0200
Subject: [PATCH] Assert the existence of CMakeList.txt before passing control
 to CMake

---
 .changeset/social-rivers-tie.md | 5 +++++
 packages/cmake-rn/src/cli.ts    | 9 +++++++++
 2 files changed, 14 insertions(+)
 create mode 100644 .changeset/social-rivers-tie.md

diff --git a/.changeset/social-rivers-tie.md b/.changeset/social-rivers-tie.md
new file mode 100644
index 00000000..6748eb41
--- /dev/null
+++ b/.changeset/social-rivers-tie.md
@@ -0,0 +1,5 @@
+---
+"cmake-rn": patch
+---
+
+Assert the existence of CMakeList.txt before passing control to CMake
diff --git a/packages/cmake-rn/src/cli.ts b/packages/cmake-rn/src/cli.ts
index 477f5feb..d3f2e066 100644
--- a/packages/cmake-rn/src/cli.ts
+++ b/packages/cmake-rn/src/cli.ts
@@ -9,6 +9,7 @@ import {
   Option,
   spawn,
   oraPromise,
+  assertFixable,
 } from "@react-native-node-api/cli-utils";
 import { isSupportedTriplet } from "react-native-node-api";
 
@@ -131,6 +132,14 @@ for (const platform of platforms) {
 
 program = program.action(
   async ({ target: requestedTargets, ...baseOptions }) => {
+    assertFixable(
+      fs.existsSync(path.join(baseOptions.source, "CMakeLists.txt")),
+      `No CMakeLists.txt found in source directory: ${chalk.dim(baseOptions.source)}`,
+      {
+        instructions: `Change working directory into a directory with a CMakeLists.txt, create one or specify the correct source directory using --source`,
+      },
+    );
+
     const buildPath = getBuildPath(baseOptions);
     if (baseOptions.clean) {
       await fs.promises.rm(buildPath, { recursive: true, force: true });