feat: allow extending the list of libs kept out of the AAR

.changeset/tidy-moons-shave.md

@@ -0,0 +1,7 @@
+---
+"@callstack/react-native-brownfield": patch
+---
+
+feat: allow extending the list of .so files kept out of the AAR
+
+Adds a `reactBrownfield.ignoreEmbeddedLibs` option so a project can name additional native libraries that should not be embedded, next to the built-in `IGNORE_EMBEDDED_LIBS` list.

gradle-plugins/react/brownfield/src/main/kotlin/com/callstack/react/brownfield/processors/JNILibsProcessor.kt

@@ -9,6 +9,7 @@ import org.gradle.api.DefaultTask
 import org.gradle.api.Project
 import org.gradle.api.file.ConfigurableFileCollection
 import org.gradle.api.file.DirectoryProperty
+import org.gradle.api.provider.ListProperty
 import org.gradle.api.provider.Property
 import org.gradle.api.tasks.CacheableTask
 import org.gradle.api.tasks.Input
@@ -50,6 +51,9 @@ abstract class ProcessAndCopyJniLibsTask : DefaultTask() {
     @get:Input
     abstract val useStrippedSoFiles: Property<Boolean>
 
+    @get:Input
+    abstract val extraIgnoredLibs: ListProperty<String>
+
     @get:OutputDirectory
     abstract val outputDirectory: DirectoryProperty
 
@@ -125,7 +129,8 @@ abstract class ProcessAndCopyJniLibsTask : DefaultTask() {
 
     private fun matchesAllowedLib(name: String): Boolean {
         val isCodegenLib = name.startsWith("libreact_codegen_") && name.endsWith(".so")
-        val isIgnoredLib = IGNORE_EMBEDDED_LIBS.any { lib -> name == lib || name.contains(lib) }
+        val ignoredLibs = IGNORE_EMBEDDED_LIBS + extraIgnoredLibs.getOrElse(emptyList())
+        val isIgnoredLib = ignoredLibs.any { lib -> name == lib || name.contains(lib) }
         return name == "libappmodules.so" || isCodegenLib || !isIgnoredLib
     }
 
@@ -161,6 +166,7 @@ class JNILibsProcessor(val project: Project) {
         val processJniTask =
             project.tasks.register("processCustomJniLibsFor$capitalizedVariantName", ProcessAndCopyJniLibsTask::class.java) {
                 it.useStrippedSoFiles.set(projectExt.useStrippedSoFiles)
+                it.extraIgnoredLibs.set(projectExt.ignoreEmbeddedLibs)
 
                 val jniDirs =
                     aarLibraries.map { aarLib ->

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

@@ -40,4 +40,17 @@ open class Extension {
      * listOf("type", "alpha")
      */
     var missingDimensionStrategies = listOf<String>()
+
+    /**
+     * Additional .so file names to keep out of the AAR, on top of
+     * [com.callstack.react.brownfield.processors.IGNORE_EMBEDDED_LIBS].
+     *
+     * Use this for libraries that stay declared as dependencies of the published AAR: the
+     * host App resolves those from Maven, so embedding them as well leaves two copies of
+     * the same .so and the host's native library merge fails.
+     *
+     * Provide in this format:
+     * listOf("libdatadog-ndk.so")
+     */
+    var ignoreEmbeddedLibs = listOf<String>()
 }