fix: apply CMake 3.31.6 only on Windows for EAS builds

Author: JBDev23

hydraflow-app/app.config.js

@@ -0,0 +1,26 @@
+const appJson = require('./app.json');
+
+const WINDOWS_CMAKE_PLUGIN = './plugins/withWindowsCmakeObjectPath';
+
+/** @returns {import('expo/config').ExpoConfig} */
+module.exports = () => {
+  const expo = { ...appJson.expo, plugins: [...appJson.expo.plugins] };
+
+  // CMake 3.31.6 + short object paths are only needed for local Windows native builds.
+  // EAS/Linux agents do not ship that CMake version ([CXX1300] if forced globally).
+  if (process.platform === 'win32') {
+    expo.plugins.push(
+      [
+        'expo-build-properties',
+        {
+          android: {
+            cmakeVersion: '3.31.6',
+          },
+        },
+      ],
+      WINDOWS_CMAKE_PLUGIN,
+    );
+  }
+
+  return { expo };
+};

hydraflow-app/app.json

@@ -52,15 +52,6 @@
           "enforceContrast": true
         }
       ],
-      [
-        "expo-build-properties",
-        {
-          "android": {
-            "cmakeVersion": "3.31.6"
-          }
-        }
-      ],
-      "./plugins/withWindowsCmakeObjectPath",
       "@react-native-google-signin/google-signin",
       "expo-asset"
     ],

hydraflow-app/plugins/withWindowsCmakeObjectPath.js

@@ -5,6 +5,10 @@ const { withAppBuildGradle } = require('expo/config-plugins');
  * Complements android.cmakeVersion=3.31.6 (Ninja 1.12+) from expo-build-properties.
  */
 function withWindowsCmakeObjectPath(config) {
+  if (process.platform !== 'win32') {
+    return config;
+  }
+
   return withAppBuildGradle(config, (config) => {
     if (config.modResults.language !== 'groovy') {
       return config;