HierarchicalKotlinNativePlatformDependencies: Provide platform dependencies to source sets not participating in any commonization

^KT-46142 Verification Pending

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/native/internal/HierarchicalKotlinNativePlatformDependencies.kt

@@ -16,18 +16,30 @@ import org.jetbrains.kotlin.gradle.targets.metadata.getMetadataCompilationForSou
 import org.jetbrains.kotlin.gradle.utils.filesProvider
 
 internal fun Project.setUpHierarchicalKotlinNativePlatformDependencies() {
-    val task = commonizeNativeDistributionHierarchicallyTask?.get() ?: return
     val kotlin = multiplatformExtensionOrNull ?: return
     kotlin.sourceSets.forEach { sourceSet ->
         val target = getCommonizerTarget(sourceSet) ?: return@forEach
-        val commonizedDependencies = task.dependenciesFor(target)
+        val targetDependencies = getDependenciesFor(target)
         val stdlib = project.filesProvider { listOf(konanDistribution.stdlib) }
-        addDependencies(sourceSet, commonizedDependencies)
+        addDependencies(sourceSet, targetDependencies)
         addDependencies(sourceSet, stdlib)
     }
 }
 
-private fun HierarchicalNativeDistributionCommonizerTask.dependenciesFor(target: CommonizerTarget): FileCollection {
+private fun Project.getDependenciesFor(target: CommonizerTarget): FileCollection {
+    val commonizerTask = commonizeNativeDistributionHierarchicallyTask?.get() ?: return project.files()
+
+    /* Target is participating in any commonization and will therefore receive dependencies provided by the commonizer */
+    if (commonizerTask.rootCommonizerTargets.any { rootTarget -> rootTarget.isEqualOrAncestorOf(target) }) {
+        return commonizerTask.getCommonizedDependenciesFor(target)
+    }
+
+    /* Target does not participate in any commonization. Try finding relevant platform libraries */
+    val konanTarget = target.konanTargets.singleOrNull() ?: return project.files()
+    return project.filesProvider { konanDistribution.platformLibsDir.resolve(konanTarget.name).listFiles().orEmpty().toSet() }
+}
+
+private fun HierarchicalNativeDistributionCommonizerTask.getCommonizedDependenciesFor(target: CommonizerTarget): FileCollection {
     val rootTarget = rootCommonizerTargets.firstOrNull { rootTarget -> rootTarget.isEqualOrAncestorOf(target) } ?: return project.files()
     val targetOutputDirectory = HierarchicalCommonizerOutputLayout.getTargetDirectory(getRootOutputDirectory(rootTarget), target)
     val targetDependencies = project.filesProvider { targetOutputDirectory.listFiles().orEmpty().toList() }.builtBy(this)
@@ -38,7 +50,7 @@ private fun HierarchicalNativeDistributionCommonizerTask.dependenciesFor(target:
      */
     val necessaryParentTargetDependencies: FileCollection = rootTarget.takeIf { target is LeafCommonizerTarget }
         ?.findParentOf(target)
-        ?.let { parentTarget -> dependenciesFor(parentTarget) }
+        ?.let { parentTarget -> getCommonizedDependenciesFor(parentTarget) }
         ?: project.files()
 
     return targetDependencies + necessaryParentTargetDependencies