fix(bgp): publish embedded community libraries' dependencies on Expo

.changeset/quiet-trains-track.md

@@ -0,0 +1,5 @@
+---
+'@callstack/react-native-brownfield': patch
+---
+
+fix: publish dependencies of community libraries (e.g. react-native-screens, lottie-react-native) embedded in Expo brownfield AARs; the published POM now lists them, previously host apps could crash with NoClassDefFoundError

apps/ExpoApp57/package.json

@@ -21,6 +21,7 @@
     "expo-system-ui": "~57.0.0",
     "expo-updates": "^57.0.6",
     "expo-web-browser": "~57.0.0",
+    "lottie-react-native": "~7.3.8",
     "react": "19.2.3",
     "react-dom": "19.2.3",
     "react-native": "0.86.0",

apps/ExpoApp57/src/app/index.tsx

@@ -1,4 +1,5 @@
 import * as Device from 'expo-device';
+import LottieView from 'lottie-react-native';
 import { Button, Platform, StyleSheet } from 'react-native';
 import { SafeAreaView } from 'react-native-safe-area-context';
 import { brownfieldE2ETestIds } from '@callstack/brownfield-example-shared-tests/e2eTestIds';
@@ -37,6 +38,12 @@ export default function HomeScreen() {
       style={styles.container}
     >
       <SafeAreaView style={styles.safeArea}>
+        {/* Community library with its own Android dependency: the host crashes if it's missing from the POM. */}
+        <LottieView
+          source={{ v: '5.7.4', fr: 30, ip: 0, op: 1, w: 1, h: 1, layers: [] }}
+          style={{ position: 'absolute', width: 1, height: 1 }}
+        />
+
         <ThemedView style={styles.heroSection}>
           <AnimatedIcon />
           <ThemedText

docs/docs/docs/guides/troubleshooting.mdx

@@ -14,7 +14,7 @@ The brownfield Gradle plugin adds both directories to the source sets, potential
 
 Installed third-party packages like `react-native-screens` or others may rely on transitive dependencies in their `build.gradle` file. For bare React Native apps, `brownfield-gradle-plugin` auto resolves these by default via the (experimental) `experimentalIncludeTransitiveDependencies` option — see [Configure Maven Publishing](/docs/getting-started/android#6-configure-maven-publishing) for details.
 
-For Expo apps, this works out of the box unconditionally.
+For Expo apps, dependencies of Expo modules are always resolved, and dependencies of other native libraries follow the same `experimentalIncludeTransitiveDependencies` option.
 
 Upgrading an existing app requires no changes on your side — in particular, you do not need to remove the hand-written `tasks.register("removeDependenciesFromModuleFile")` block if you have one, since the plugin's own task is named differently and the two do not conflict. Be aware of two behaviour changes once this is enabled: dependencies your embedded modules need will start appearing in the published POM, and a version you pinned yourself may be **raised** (never lowered) if an embedded module requires a higher one.
 

gradle-plugins/react/brownfield/src/main/kotlin/com/callstack/react/brownfield/plugin/RNBrownfieldPlugin.kt

@@ -117,9 +117,8 @@ class RNBrownfieldPlugin : Plugin<Project> {
             }
             transitiveDeps.addAll(expoTransitiveDeps)
         }
-        // Never on Expo: the path above already covers every embedded module there, and the RNC
-        // discoverer doesn't filter by the Expo blacklist, so running both leaks Expo coordinates.
-        if (!isExpoProject && extension.experimentalIncludeTransitiveDependencies) {
+        // Also on Expo: the path above only covers Expo modules, not community libraries.
+        if (extension.experimentalIncludeTransitiveDependencies) {
             val rncDiscovery = RncTransitiveDependencyDiscoverer(project).discover(artifacts)
             Logging.log(
                 "Merged ${rncDiscovery.dependencies.size} transitive dependencies discovered by the RNC discoverer",
@@ -134,7 +133,8 @@ class RNBrownfieldPlugin : Plugin<Project> {
             // (replacing a stale entry) and so must not be dropped here.
             val hardExcludePredicate: (String, String) -> Boolean = { groupId, artifactId ->
                 (expoPublishingHelper?.shouldExcludeDependency(groupId, artifactId) ?: (groupId == project.rootProject.name)) ||
-                    artifacts.any { it.moduleGroup == groupId && it.moduleName == artifactId }
+                    artifacts.any { it.moduleGroup == groupId && it.moduleName == artifactId } ||
+                    expoProjects.any { it.publication?.groupId == groupId && it.publication?.artifactId == artifactId }
             }
             dropHardExcludedDependencies(transitiveDeps, hardExcludePredicate)
 

gradle-plugins/react/brownfield/src/main/kotlin/com/callstack/react/brownfield/utils/Extension.kt

@@ -58,8 +58,8 @@ open class Extension {
      * Whether to publish embedded native modules' third-party dependencies into the generated POM
      * and Gradle Module Metadata, so consuming apps resolve them instead of declaring them by hand.
      *
-     * Experimental; behavior may still change. Applies to non-Expo (RNC CLI) projects only — Expo
-     * gets this unconditionally. Set to `false` to hand-declare them instead.
+     * Experimental; behavior may still change. On Expo projects, Expo modules' dependencies are
+     * published regardless; this covers the other native modules. Set to `false` to hand-declare them instead.
      *
      * Default is `true`.
      */

yarn.lock

@@ -1905,6 +1905,7 @@ __metadata:
     expo-system-ui: "npm:~57.0.0"
     expo-updates: "npm:^57.0.6"
     expo-web-browser: "npm:~57.0.0"
+    lottie-react-native: "npm:~7.3.8"
     react: "npm:19.2.3"
     react-dom: "npm:19.2.3"
     react-native: "npm:0.86.0"
@@ -16152,6 +16153,23 @@ __metadata:
   languageName: node
   linkType: hard
 
+"lottie-react-native@npm:~7.3.8":
+  version: 7.3.8
+  resolution: "lottie-react-native@npm:7.3.8"
+  peerDependencies:
+    "@lottiefiles/dotlottie-react": ^0.13.5
+    react: "*"
+    react-native: ">=0.46"
+    react-native-windows: ">=0.63.x"
+  peerDependenciesMeta:
+    "@lottiefiles/dotlottie-react":
+      optional: true
+    react-native-windows:
+      optional: true
+  checksum: 10/050154a675de4aeff10d629ca48743806818ebe4c79d041e0983ff278a59e2d59f4e88b559a6d681e49d7d82b253ad969909d9cde9a887bc22c8a2ebf05c2538
+  languageName: node
+  linkType: hard
+
 "lru-cache@npm:^10.0.1, lru-cache@npm:^10.2.0":
   version: 10.4.3
   resolution: "lru-cache@npm:10.4.3"