[Gradle] KotlinSoftwareComponent: Use future instead of lazy

^KT-34662 Verification Pending

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/kotlin/org/jetbrains/kotlin/gradle/NewMultiplatformIT.kt

@@ -333,7 +333,7 @@ open class NewMultiplatformIT : BaseGradleIT() {
                 options = defaultBuildOptions().copy(jsCompilerType = jsCompilerType)
             ) {
                 assertSuccessful()
-                assertTasksSkipped(":compileCommonMainKotlinMetadata")
+                assertTasksNotExecuted(":compileCommonMainKotlinMetadata")
                 assertTasksExecuted(*compileTasksNames.toTypedArray(), ":allMetadataJar")
 
                 val groupDir = projectDir.resolve("repo/com/example")

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

@@ -21,11 +21,13 @@ import org.gradle.jvm.tasks.Jar
 import org.jetbrains.kotlin.gradle.dsl.multiplatformExtension
 import org.jetbrains.kotlin.gradle.plugin.*
 import org.jetbrains.kotlin.gradle.plugin.KotlinCompilation.Companion.MAIN_COMPILATION_NAME
+import org.jetbrains.kotlin.gradle.plugin.KotlinPluginLifecycle.Stage.AfterFinaliseCompilations
 import org.jetbrains.kotlin.gradle.utils.markResolvable
 import org.jetbrains.kotlin.gradle.targets.metadata.*
 import org.jetbrains.kotlin.gradle.targets.metadata.COMMON_MAIN_ELEMENTS_CONFIGURATION_NAME
 import org.jetbrains.kotlin.gradle.targets.metadata.isCompatibilityMetadataVariantEnabled
 import org.jetbrains.kotlin.gradle.targets.metadata.isKotlinGranularMetadataEnabled
+import org.jetbrains.kotlin.gradle.utils.Future
 import org.jetbrains.kotlin.gradle.utils.future
 import org.jetbrains.kotlin.gradle.utils.setProperty
 import org.jetbrains.kotlin.util.capitalizeDecapitalize.toLowerCaseAsciiOnly
@@ -38,23 +40,30 @@ abstract class KotlinSoftwareComponent(
 
     override fun getName(): String = name
 
-    private val metadataTarget get() = project.multiplatformExtension.metadata()
+    private val metadataTarget get() = project.multiplatformExtension.metadata() as KotlinMetadataTarget
 
-    override fun getVariants(): Set<SoftwareComponent> = kotlinTargets
-        .filter { target -> target !is KotlinMetadataTarget }
-        .flatMap { target ->
-            val targetPublishableComponentNames = target.internal.kotlinComponents
-                .filter { component -> component.publishable }
-                .map { component -> component.name }
-                .toSet()
+    private val _variants = project.future {
+        await(AfterFinaliseCompilations)
+        kotlinTargets
+            .filter { target -> target !is KotlinMetadataTarget }
+            .flatMap { target ->
+                val targetPublishableComponentNames = target.internal.kotlinComponents
+                    .filter { component -> component.publishable }
+                    .map { component -> component.name }
+                    .toSet()
 
-            target.components.filter { it.name in targetPublishableComponentNames }
-        }.toSet()
+                target.components.filter { it.name in targetPublishableComponentNames }
+            }.toSet()
+    }
+
+    override fun getVariants(): Set<SoftwareComponent> = _variants.getOrThrow()
+
+    private val _usages: Future<Set<DefaultKotlinUsageContext>> = project.future {
+        metadataTarget.awaitMetadataCompilationsCreated()
 
-    private val _usages: Set<DefaultKotlinUsageContext> by lazy {
         if (!project.isKotlinGranularMetadataEnabled) {
             val metadataCompilation = metadataTarget.compilations.getByName(MAIN_COMPILATION_NAME)
-            return@lazy metadataTarget.createUsageContexts(metadataCompilation)
+            return@future metadataTarget.createUsageContexts(metadataCompilation)
         }
 
         mutableSetOf<DefaultKotlinUsageContext>().apply {
@@ -70,7 +79,6 @@ abstract class KotlinSoftwareComponent(
                 overrideConfigurationArtifacts = project.setProperty { listOf(allMetadataArtifact) }
             )
 
-
             if (project.isCompatibilityMetadataVariantEnabled) {
                 // Ensure that consumers who expect Kotlin 1.2.x metadata package can still get one:
                 // publish the old metadata artifact:
@@ -97,8 +105,9 @@ abstract class KotlinSoftwareComponent(
         }
     }
 
+
     override fun getUsages(): Set<UsageContext> {
-        return _usages.publishableUsages()
+        return _usages.getOrThrow().publishableUsages()
     }
 
     private suspend fun allPublishableCommonSourceSets() = getCommonSourceSetsForMetadataCompilation(project) +

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

@@ -290,10 +290,7 @@ class KotlinMetadataTargetConfigurator :
         val project = target.project
 
         val compilationName = sourceSet.name
-
-        val platformCompilations = sourceSet.internal.compilations
-            .filter { it.target.name != KotlinMultiplatformPlugin.METADATA_TARGET_NAME }
-
+        val platformCompilations = sourceSet.internal.awaitPlatformCompilations()
         val isNativeSourceSet = sourceSet.isNativeSourceSet.await()
 
         val compilationFactory: KotlinCompilationFactory<out KotlinCompilation<*>> = when {