[Gradle] Implement KotlinMetadataTargetSetupAction

KT-61634

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

@@ -8,9 +8,7 @@ package org.jetbrains.kotlin.gradle.plugin.mpp
 import org.gradle.api.Plugin
 import org.gradle.api.Project
 import org.gradle.api.plugins.JavaBasePlugin
-import org.jetbrains.kotlin.gradle.dsl.KotlinMultiplatformExtension
 import org.jetbrains.kotlin.gradle.dsl.multiplatformExtension
-import org.jetbrains.kotlin.gradle.dsl.targetFromPresetInternal
 import org.jetbrains.kotlin.gradle.internal.customizeKotlinDependencies
 import org.jetbrains.kotlin.gradle.plugin.KotlinSourceSet
 import org.jetbrains.kotlin.gradle.plugin.hierarchy.setupDefaultKotlinHierarchy
@@ -34,21 +32,12 @@ class KotlinMultiplatformPlugin : Plugin<Project> {
 
         project.plugins.apply(JavaBasePlugin::class.java)
 
-        val kotlinMultiplatformExtension = project.extensions.getByType(KotlinMultiplatformExtension::class.java)
-
         setupDefaultPresets(project)
         customizeKotlinDependencies(project)
         configureSourceSets(project)
         setupTargetsBuildStatsReport(project)
-
-        // set up metadata publishing
-        kotlinMultiplatformExtension.targetFromPresetInternal(
-            KotlinMetadataTargetPreset(project),
-            METADATA_TARGET_NAME
-        )
     }
 
-
     fun setupDefaultPresets(project: Project) {
         with(project.multiplatformExtension.presets) {
             add(KotlinJvmTargetPreset(project))

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

@@ -39,6 +39,7 @@ import org.jetbrains.kotlin.gradle.plugin.mpp.apple.AddBuildListenerForXCodeSetu
 import org.jetbrains.kotlin.gradle.plugin.sources.LanguageSettingsSetupAction
 import org.jetbrains.kotlin.gradle.scripting.internal.ScriptingGradleSubpluginSetupAction
 import org.jetbrains.kotlin.gradle.targets.js.npm.AddNpmDependencyExtensionProjectSetupAction
+import org.jetbrains.kotlin.gradle.targets.metadata.KotlinMetadataTargetSetupAction
 import org.jetbrains.kotlin.gradle.targets.native.CreateFatFrameworksSetupAction
 import org.jetbrains.kotlin.gradle.targets.native.internal.CInteropCommonizedCInteropApiElementsConfigurationsSetupAction
 import org.jetbrains.kotlin.gradle.targets.native.tasks.artifact.KotlinArtifactsExtensionSetupAction
@@ -61,6 +62,7 @@ internal fun Project.registerKotlinPluginExtensions() {
         }
 
         if (isMultiplatform) {
+            register(project, KotlinMetadataTargetSetupAction)
             register(project, KotlinArtifactsExtensionSetupAction)
             register(project, MultiplatformPublishingSetupAction)
             register(project, LanguageSettingsSetupAction)

libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/targets/metadata/KotlinMetadataTargetSetupAction.kt

@@ -0,0 +1,20 @@
+/*
+ * Copyright 2010-2023 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.targets.metadata
+
+import org.jetbrains.kotlin.gradle.dsl.multiplatformExtension
+import org.jetbrains.kotlin.gradle.dsl.targetFromPresetInternal
+import org.jetbrains.kotlin.gradle.plugin.KotlinProjectSetupAction
+import org.jetbrains.kotlin.gradle.plugin.mpp.KotlinMetadataTargetPreset
+import org.jetbrains.kotlin.gradle.plugin.mpp.KotlinMultiplatformPlugin
+
+internal val KotlinMetadataTargetSetupAction = KotlinProjectSetupAction {
+    /* Create metadata target */
+    multiplatformExtension.targetFromPresetInternal(
+        KotlinMetadataTargetPreset(project),
+        KotlinMultiplatformPlugin.METADATA_TARGET_NAME
+    )
+}