feat: support Expo 55 (#248)

* chore: move Expo 54 demo app

* docs: document new Expo demo apps

* ci: build both expo apps

* chore: bootstrap Expo 55 demo app

* feat: support Expo 55 in react-native-brownfield expo config plugin

* chore: configure package names

* chore: add changeset

* chore: rename expo-specific entrypoint files in template

* feat: support both hermes repositories in Expo config plugin

* fix: missing spaces in expo brownfield plugin logs

* chore: upgrade KGP version in AndroidApp

* feat: collect expo runtime-scope transitive dependencies and inject to artifacts

* fix: restore Expo entrypoint in AndroidApp

* feat: integrate postMessage demo with Expo 55

* docs: reorder hermes version instructions

* feat: demo android expo 54 & 55 flavors

* fix: entrypoint for Expo to support Expo 55

* feat: expo config plugin to define EXPO_PRE_55 in the brownfield target for pre-55 expo SDK

* fix: support for both Expo pre- and post- 55 in ExpoHostRuntime

* feat: upgrade to stable expo 55

* fix: define EXPO_SDK_GTE_55 in Podfile for ReactBrownfield

* feat: expo 55 demo app parity with 54 demo app

* fix: build error in ExpoHostRuntime for Expo 54

* chore: remove leftovers from tester-integrated from changesets config

* fix: changes after CR

* fix(ci): prepare-android-build-gradle-for-ci.ts

* fix(ci): use matrix for iOS Expo demo app

* fix(ci): invalid command flag failing Expo 54 demo app build in CI

Author: artus9033

.changeset/config.json

@@ -14,7 +14,8 @@
     "@callstack/brownfield-example-android-app",
     "@callstack/brownfield-example-ios-app",
     "@callstack/brownfield-example-rn-app",
-    "@callstack/brownfield-example-expo-app",
+    "@callstack/brownfield-example-expo-app-54",
+    "@callstack/brownfield-example-expo-app-55",
     "@callstack/brownfield-gradle-plugin-react"
   ],
   "___experimentalUnsafeOptions_WILL_CHANGE_IN_PATCH": {

.changeset/wet-ears-cough.md

@@ -3,7 +3,7 @@ description: Package the given RN app as AAR, publish to Maven Local, and build
 
 inputs:
   flavor:
-    description: 'AndroidApp flavor to build (expo or vanilla)'
+    description: 'AndroidApp flavor to build (expo<version> or vanilla)'
     required: true
 
   rn-project-path:
@@ -42,14 +42,14 @@ runs:
 
     # == RN app ==
     - name: Prebuild Expo app
-      if: ${{ inputs.flavor == 'expo' }}
+      if: ${{ startsWith(inputs.flavor, 'expo') }}
       run: |
         cd ${{ inputs.rn-project-path }}
         yarn run expo prebuild --platform android
       shell: bash
 
     - name: Patch ExpoApp Android build.gradle for CI
-      if: ${{ inputs.flavor == 'expo' }}
+      if: ${{ startsWith(inputs.flavor, 'expo') }}
       run: |
         cd ${{ inputs.rn-project-path }}
         yarn run brownfield:prepare:android:ci

.github/actions/androidapp-road-test/action.yml

@@ -51,20 +51,25 @@ jobs:
           yarn workspace @callstack/react-native-brownfield brownfield --version
 
   android-androidapp-expo:
-    name: Android road test (RNApp & AndroidApp - Expo)
+    name: Android road test (RNApp & AndroidApp - Expo ${{ matrix.version }})
     runs-on: ubuntu-latest
     needs: build-lint
+    strategy:
+      matrix:
+        include:
+          - version: '54'
+          - version: '55'
 
     steps:
       - name: Checkout
         uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6
 
-      - name: Run RNApp -> AndroidApp road test (Expo)
+      - name: Run RNApp -> AndroidApp road test (Expo ${{ matrix.version }})
         uses: ./.github/actions/androidapp-road-test
         with:
-          flavor: expo
-          rn-project-path: apps/ExpoApp
-          rn-project-maven-path: com/callstack/rnbrownfield/demo/expoapp/brownfieldlib
+          flavor: expo${{ matrix.version }}
+          rn-project-path: apps/ExpoApp${{ matrix.version }}
+          rn-project-maven-path: com/callstack/rnbrownfield/demo/expoapp${{ matrix.version }}/brownfieldlib
 
   android-androidapp-vanilla:
     name: Android road test (RNApp & AndroidApp - Vanilla)
@@ -98,16 +103,21 @@ jobs:
           rn-project-path: apps/RNApp
 
   ios-appleapp-expo:
-    name: iOS road test (RNApp & AppleApp - Expo)
+    name: iOS road test (RNApp & AppleApp - Expo ${{ matrix.version }})
     runs-on: macos-26
     needs: build-lint
+    strategy:
+      matrix:
+        include:
+          - version: '54'
+          - version: '55'
 
     steps:
       - name: Checkout
         uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6
 
-      - name: Run ExpoApp -> AppleApp road test (Expo)
+      - name: Run ExpoApp -> AppleApp road test (Expo ${{ matrix.version }})
         uses: ./.github/actions/appleapp-road-test
         with:
-          variant: expo
-          rn-project-path: apps/ExpoApp
+          variant: expo${{ matrix.version }}
+          rn-project-path: apps/ExpoApp${{ matrix.version }}

.github/workflows/ci.yml

@@ -2,8 +2,8 @@ compressionLevel: mixed
 
 enableGlobalCache: false
 
-nodeLinker: node-modules
-
 nmHoistingLimits: workspaces
 
+nodeLinker: node-modules
+
 yarnPath: .yarn/releases/yarn-4.12.0.cjs

.yarnrc.yml

@@ -30,7 +30,10 @@ android {
 
     flavorDimensions += "app"
     productFlavors {
-        create("expo") {
+        create("expo54") {
+            dimension = "app"
+        }
+        create("expo55") {
             dimension = "app"
         }
         create("vanilla") {
@@ -71,7 +74,8 @@ dependencies {
     implementation(libs.androidx.compose.ui.tooling.preview)
     implementation(libs.androidx.compose.material3)
     implementation(libs.androidx.appcompat)
-    add("expoImplementation", libs.brownfieldlib.expo)
+    add("expo55Implementation", libs.brownfieldlib.expo55)
+    add("expo54Implementation", libs.brownfieldlib.expo54)
     add("vanillaImplementation", libs.brownfieldlib.vanilla)
 
     implementation(libs.androidx.fragment.compose)

CONTRIBUTING.md

@@ -2,5 +2,5 @@ package com.callstack.brownfield.android.example
 
 object ReactNativeConstants {
     const val MAIN_MODULE_NAME = "main"
-    const val APP_NAME = "Android (Expo)"
+    const val APP_NAME = "Android (Expo 54)"
 }

apps/AndroidApp/app/build.gradle.kts

@@ -1,3 +1,3 @@
 package com.callstack.brownfield.android.example
 
-typealias ReactNativeHostManager = com.callstack.rnbrownfield.demo.expoapp.ReactNativeHostManager
+typealias ReactNativeHostManager = com.callstack.rnbrownfield.demo.expoapp54.ReactNativeHostManager

…/android/example/ReactNativeConstants.kt …eld/android/expo/ReactNativeConstants.ktapps/AndroidApp/app/src/expo/java/com/callstack/brownfield/android/example/ReactNativeConstants.kt renamed to apps/AndroidApp/app/src/expo54/java/com/callstack/brownfield/android/expo/ReactNativeConstants.kt apps/AndroidApp/app/src/expo/java/com/callstack/brownfield/android/example/ReactNativeConstants.kt renamed to apps/AndroidApp/app/src/expo54/java/com/callstack/brownfield/android/expo/ReactNativeConstants.kt

@@ -0,0 +1,6 @@
+package com.callstack.brownfield.android.example
+
+object ReactNativeConstants {
+    const val MAIN_MODULE_NAME = "main"
+    const val APP_NAME = "Android (Expo 55)"
+}