Register multiplatform publication extension

^KT-65540

libraries/tools/kotlin-gradle-plugin-annotations/api/kotlin-gradle-plugin-annotations.api

@@ -1,3 +1,6 @@
+public abstract interface annotation class org/jetbrains/kotlin/gradle/ComposeKotlinGradlePluginApi : java/lang/annotation/Annotation {
+}
+
 public final class org/jetbrains/kotlin/gradle/DeprecatedTargetPresetApiKt {
 	public static final field PRESETS_API_IS_DEPRECATED_MESSAGE Ljava/lang/String;
 	public static final field PRESETS_DEPRECATION_MESSAGE_SUFFIX Ljava/lang/String;

libraries/tools/kotlin-gradle-plugin-annotations/src/main/kotlin/org/jetbrains/kotlin/gradle/ComposeKotlinGradlePluginApi.kt

@@ -0,0 +1,12 @@
+/*
+ * Copyright 2010-2022 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.gradle
+
+@RequiresOptIn(
+    message = "This API is not intended to be used outside of the Kotlin Gradle Plugin and Compose Multiplatform Plugin integration",
+    level = RequiresOptIn.Level.ERROR
+)
+annotation class ComposeKotlinGradlePluginApi

libraries/tools/kotlin-gradle-plugin-integration-tests/build.gradle.kts

@@ -13,6 +13,7 @@ testsJar()
 
 kotlin.sourceSets.all {
     languageSettings.optIn("org.jetbrains.kotlin.gradle.InternalKotlinGradlePluginApi")
+    languageSettings.optIn("org.jetbrains.kotlin.gradle.ComposeKotlinGradlePluginApi")
 }
 
 val kotlinGradlePluginTest = project(":kotlin-gradle-plugin").sourceSets.named("test").map { it.output }

libraries/tools/kotlin-gradle-plugin/api/kotlin-gradle-plugin.api

@@ -907,6 +907,11 @@ public final class org/jetbrains/kotlin/gradle/plugin/mpp/external/ExternalKotli
 	public static final fun sourcesJarTask (Lorg/jetbrains/kotlin/gradle/plugin/mpp/external/DecoratedExternalKotlinTarget;Lorg/jetbrains/kotlin/gradle/plugin/mpp/external/DecoratedExternalKotlinCompilation;)Lorg/gradle/api/tasks/TaskProvider;
 }
 
+public abstract interface class org/jetbrains/kotlin/gradle/plugin/mpp/resources/KotlinTargetResourcesPublication {
+	public static final field Companion Lorg/jetbrains/kotlin/gradle/plugin/mpp/resources/KotlinTargetResourcesPublication$Companion;
+	public static final field EXTENSION_NAME Ljava/lang/String;
+}
+
 public abstract class org/jetbrains/kotlin/gradle/plugin/mpp/targetHierarchy/SourceSetTreeClassifier {
 }
 

libraries/tools/kotlin-gradle-plugin/build.gradle.kts

@@ -23,6 +23,7 @@ kotlin {
                 "org.jetbrains.kotlin.compiler.plugin.ExperimentalCompilerApi",
                 "org.jetbrains.kotlin.gradle.DeprecatedTargetPresetApi",
                 "org.jetbrains.kotlin.buildtools.api.ExperimentalBuildToolsApi",
+                "org.jetbrains.kotlin.gradle.ComposeKotlinGradlePluginApi",
             )
         )
     }
@@ -30,6 +31,7 @@ kotlin {
 
 apiValidation {
     publicMarkers.add("org.jetbrains.kotlin.gradle.ExternalKotlinTargetApi")
+    publicMarkers.add("org.jetbrains.kotlin.gradle.ComposeKotlinGradlePluginApi")
     publicMarkers.add("org.jetbrains.kotlin.gradle.dsl.KotlinGradlePluginPublicDsl")
     nonPublicMarkers.add("org.jetbrains.kotlin.gradle.InternalKotlinGradlePluginApi")
     additionalSourceSets.add("common")

libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/plugin/mpp/resources/KotlinTargetResourcesPublication.kt

@@ -0,0 +1,28 @@
+/*
+ * Copyright 2010-2024 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.gradle.plugin.mpp.resources
+
+import org.gradle.api.provider.Provider
+import org.jetbrains.kotlin.gradle.ComposeKotlinGradlePluginApi
+import org.jetbrains.kotlin.gradle.plugin.KotlinSourceSet
+import org.jetbrains.kotlin.gradle.plugin.KotlinTarget
+import org.jetbrains.kotlin.gradle.plugin.mpp.KotlinAndroidTarget
+import java.io.File
+
+@ComposeKotlinGradlePluginApi
+interface KotlinTargetResourcesPublication {
+
+    data class ResourceRoot(
+        val resourcesBaseDirectory: Provider<File>,
+        val includes: List<String>,
+        val excludes: List<String>,
+    )
+
+    companion object {
+        const val EXTENSION_NAME = "multiplatformResourcesPublication"
+    }
+
+}

libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/plugin/mpp/resources/KotlinTargetResourcesPublicationImpl.kt

@@ -0,0 +1,52 @@
+/*
+ * Copyright 2010-2024 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.gradle.plugin.mpp.resources
+
+import org.gradle.api.Project
+import org.gradle.api.artifacts.Configuration
+import org.gradle.api.provider.Provider
+import org.gradle.api.tasks.TaskProvider
+import org.jetbrains.kotlin.gradle.plugin.*
+import org.jetbrains.kotlin.gradle.plugin.KotlinPluginLifecycle
+import org.jetbrains.kotlin.gradle.plugin.launchInStage
+import org.jetbrains.kotlin.gradle.plugin.mpp.KotlinAndroidTarget
+import org.jetbrains.kotlin.gradle.plugin.mpp.KotlinNativeTarget
+import org.jetbrains.kotlin.gradle.plugin.mpp.disambiguateName
+import org.jetbrains.kotlin.gradle.plugin.mpp.internal
+import org.jetbrains.kotlin.gradle.targets.js.ir.KotlinJsIrTarget
+import org.jetbrains.kotlin.gradle.targets.jvm.KotlinJvmTarget
+import org.jetbrains.kotlin.gradle.tasks.locateTask
+import org.jetbrains.kotlin.gradle.tasks.registerTask
+import java.io.File
+import javax.inject.Inject
+
+internal abstract class KotlinTargetResourcesPublicationImpl @Inject constructor(
+    val project: Project
+) : KotlinTargetResourcesPublication {
+
+    internal data class TargetResources(
+        val resourcePathForSourceSet: (KotlinSourceSet) -> (KotlinTargetResourcesPublication.ResourceRoot),
+        val relativeResourcePlacement: Provider<File>,
+    )
+
+    private val targetToResourcesMap: MutableMap<KotlinTarget, TargetResources> = mutableMapOf()
+
+    private val targetResourcesSubscribers: MutableMap<KotlinTarget, MutableList<(TargetResources) -> (Unit)>> = mutableMapOf()
+
+    internal fun subscribeOnPublishResources(
+        target: KotlinTarget,
+        notify: (TargetResources) -> (Unit),
+    ) {
+        targetToResourcesMap[target]?.let(notify)
+        targetResourcesSubscribers.getOrPut(target, { mutableListOf() }).add(notify)
+    }
+
+
+    internal companion object {
+        const val MULTIPLATFORM_RESOURCES_DIRECTORY = "kotlin-multiplatform-resources"
+    }
+
+}

libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/plugin/mpp/resources/resourcesPublicationExtension.kt

@@ -0,0 +1,25 @@
+/*
+ * Copyright 2010-2024 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.gradle.plugin.mpp.resources
+
+import org.jetbrains.kotlin.gradle.dsl.KotlinMultiplatformExtension
+import org.jetbrains.kotlin.gradle.dsl.multiplatformExtension
+import org.jetbrains.kotlin.gradle.plugin.KotlinProjectSetupAction
+import org.jetbrains.kotlin.gradle.plugin.PropertiesProvider.Companion.kotlinPropertiesProvider
+import org.jetbrains.kotlin.gradle.plugin.extraProperties
+import org.jetbrains.kotlin.gradle.utils.getOrPut
+
+internal val KotlinMultiplatformExtension.resourcesPublicationExtension: KotlinTargetResourcesPublicationImpl?
+    get() {
+        if (!project.kotlinPropertiesProvider.mppResourcesPublication) return null
+        return project.extraProperties.getOrPut(KotlinTargetResourcesPublication.EXTENSION_NAME) {
+            project.objects.newInstance(KotlinTargetResourcesPublicationImpl::class.java, project)
+        }
+    }
+
+internal val RegisterMultiplatformResourcesPublicationExtensionAction = KotlinProjectSetupAction {
+    multiplatformExtension.resourcesPublicationExtension
+}

libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/plugin/registerKotlinPluginExtensions.kt

@@ -19,6 +19,7 @@ import org.jetbrains.kotlin.gradle.plugin.mpp.*
 import org.jetbrains.kotlin.gradle.plugin.mpp.apple.AddBuildListenerForXCodeSetupAction
 import org.jetbrains.kotlin.gradle.plugin.mpp.compilationImpl.*
 import org.jetbrains.kotlin.gradle.plugin.mpp.internal.DeprecatedMppGradlePropertiesMigrationSetupAction
+import org.jetbrains.kotlin.gradle.plugin.mpp.resources.RegisterMultiplatformResourcesPublicationExtensionAction
 import org.jetbrains.kotlin.gradle.plugin.sources.KotlinMultiplatformSourceSetSetupAction
 import org.jetbrains.kotlin.gradle.plugin.sources.LanguageSettingsSetupAction
 import org.jetbrains.kotlin.gradle.plugin.statistics.MultiplatformBuildStatsReportSetupAction
@@ -78,6 +79,7 @@ internal fun Project.registerKotlinPluginExtensions() {
             register(project, KotlinLLDBScriptSetupAction)
             register(project, ExcludeDefaultPlatformDependenciesFromKotlinNativeCompileTasks)
             register(project, SetupConsistentMetadataDependenciesResolution)
+            register(project, RegisterMultiplatformResourcesPublicationExtensionAction)
         }
     }
 

libraries/tools/kotlin-gradle-plugin/src/functionalTest/kotlin/org/jetbrains/kotlin/gradle/unitTests/RegisterMultiplatformResourcesPublicationExtensionActionTests.kt

@@ -0,0 +1,41 @@
+/*
+ * Copyright 2010-2024 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.gradle.unitTests
+
+import org.jetbrains.kotlin.gradle.dsl.multiplatformExtension
+import org.jetbrains.kotlin.gradle.plugin.mpp.resources.KotlinTargetResourcesPublication
+import org.jetbrains.kotlin.gradle.plugin.mpp.resources.resourcesPublicationExtension
+import org.jetbrains.kotlin.gradle.util.buildProjectWithMPP
+import org.jetbrains.kotlin.gradle.util.enableMppResourcesPublication
+import org.jetbrains.kotlin.gradle.util.kotlin
+import org.jetbrains.kotlin.gradle.util.runLifecycleAwareTest
+import org.junit.Test
+import kotlin.test.assertNotNull
+import kotlin.test.assertNull
+
+class RegisterMultiplatformResourcesPublicationExtensionActionTests {
+
+    @Test
+    fun `test mppResourcesPublication toggle - prevents extension creation`() {
+        assertNull(
+            buildProjectWithMPP {
+                kotlin { jvm() }
+                enableMppResourcesPublication(false)
+            }.evaluate().multiplatformExtension.resourcesPublicationExtension
+        )
+    }
+
+    @Test
+    fun `test mppResourcesPublication toggle - enables extension creation`() {
+        assertNotNull(
+            buildProjectWithMPP {
+                kotlin { jvm() }
+                enableMppResourcesPublication(true)
+            }.evaluate().multiplatformExtension.resourcesPublicationExtension
+        )
+    }
+
+}

libraries/tools/kotlin-gradle-plugin/src/functionalTest/kotlin/org/jetbrains/kotlin/gradle/util/buildProject.kt

@@ -113,6 +113,10 @@ fun Project.enableCInteropCommonization(enabled: Boolean = true) {
     propertiesExtension.set(PropertiesProvider.PropertyNames.KOTLIN_MPP_ENABLE_CINTEROP_COMMONIZATION, enabled.toString())
 }
 
+fun Project.enableMppResourcesPublication(enabled: Boolean = true) {
+    propertiesExtension.set(PropertiesProvider.PropertyNames.KOTLIN_MPP_ENABLE_RESOURCES_PUBLICATION, enabled.toString())
+}
+
 fun Project.enableIntransitiveMetadataConfiguration(enabled: Boolean = true) {
     propertiesExtension.set(KOTLIN_MPP_ENABLE_INTRANSITIVE_METADATA_CONFIGURATION, enabled.toString())
 }