Model mapping: rework publications from legacy-mapped variants

Use the publication requests API to express all the details
of a legacy target's publications (artifact & attributes overrides)

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

@@ -16,6 +16,7 @@ import org.gradle.api.component.ComponentWithVariants
 import org.gradle.api.component.SoftwareComponent
 import org.gradle.api.internal.component.SoftwareComponentInternal
 import org.gradle.api.internal.component.UsageContext
+import org.gradle.api.provider.ListProperty
 import org.gradle.api.publish.maven.MavenPublication
 import org.jetbrains.kotlin.gradle.dsl.kotlinExtension
 import org.jetbrains.kotlin.gradle.dsl.multiplatformExtension
@@ -27,6 +28,7 @@ import org.jetbrains.kotlin.gradle.targets.metadata.COMMON_MAIN_ELEMENTS_CONFIGU
 import org.jetbrains.kotlin.gradle.targets.metadata.KotlinMetadataTargetConfigurator
 import org.jetbrains.kotlin.gradle.targets.metadata.isCompatibilityMetadataVariantEnabled
 import org.jetbrains.kotlin.gradle.targets.metadata.isKotlinGranularMetadataEnabled
+import org.jetbrains.kotlin.gradle.utils.listProperty
 
 abstract class KotlinSoftwareComponent(
     private val project: Project,
@@ -67,7 +69,7 @@ abstract class KotlinSoftwareComponent(
                 compilation = metadataTarget.compilations.getByName(MAIN_COMPILATION_NAME),
                 usage = javaApiUsage,
                 dependencyConfigurationName = metadataTarget.apiElementsConfigurationName,
-                overrideConfigurationArtifacts = setOf(allMetadataArtifact)
+                overrideConfigurationArtifacts = project.listProperty { listOf(allMetadataArtifact) }
             )
 
 
@@ -126,8 +128,8 @@ class DefaultKotlinUsageContext(
     override val compilation: KotlinCompilation<*>,
     private val usage: Usage,
     override val dependencyConfigurationName: String,
-    private val overrideConfigurationArtifacts: Set<PublishArtifact>? = null,
+    internal val overrideConfigurationArtifacts: ListProperty<PublishArtifact>? = null,
-    private val overrideConfigurationAttributes: AttributeContainer? = null,
+    internal val overrideConfigurationAttributes: AttributeContainer? = null,
     override val includeIntoProjectStructureMetadata: Boolean = true
 ) : KotlinUsageContext {
 
@@ -148,7 +150,7 @@ class DefaultKotlinUsageContext(
         configuration.incoming.dependencyConstraints
 
     override fun getArtifacts(): Set<PublishArtifact> =
-        overrideConfigurationArtifacts ?:
+        overrideConfigurationArtifacts?.get()?.toSet() ?:
         // TODO Gradle Java plugin does that in a different way; check whether we can improve this
         configuration.artifacts
 

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/plugin/mpp/pm20/LegacyMappedVariant.kt

@@ -61,10 +61,20 @@ internal open class LegacyMappedVariant(
             }
 
     override val gradleVariantNames: Set<String>
-        get() = if (compilation.isMain()) {
+        get() {
-            val apiElements = compilation.target.apiElementsConfigurationName
+            val allTargetComponents = (compilation.target as AbstractKotlinTarget).kotlinComponents
-            setOf(apiElements, publishedConfigurationName(apiElements))
+            val allTargetUsages = allTargetComponents.flatMap {
-        } else emptySet()
+                when (it) {
+                    is KotlinVariant -> it.usages
+                    is JointAndroidKotlinTargetComponent -> it.usages
+                    else -> emptyList()
+                }
+            }
+            val compilationUsages = allTargetUsages.filterIsInstance<DefaultKotlinUsageContext>().filter { it.compilation == compilation }
+            return compilationUsages.filter { it.includeIntoProjectStructureMetadata }
+                .flatMap { listOf(it.dependencyConfigurationName, publishedConfigurationName(it.dependencyConfigurationName)) }
+                .toSet()
+        }
 
     override val kotlinSourceRoots: SourceDirectorySet
         get() = compilation.defaultSourceSet.kotlin
@@ -184,15 +194,11 @@ internal fun mapTargetCompilationsToKpmVariants(target: AbstractKotlinTarget, pu
                 mainModule,
                 kotlinComponent.defaultArtifactId.removePrefix(target.project.name.toLowerCase() + "-")
             )
-            val variant = mainModule.variants.withType<LegacyMappedVariant>().single {
-                it.compilation == target.compilations.getByName(KotlinCompilation.MAIN_COMPILATION_NAME)
-            }
             val usages = when (kotlinComponent) { // unfortunately, there's no common supertype with `usages`
                 is KotlinVariant -> kotlinComponent.usages
                 is JointAndroidKotlinTargetComponent -> kotlinComponent.usages
                 else -> error("unexpected type of kotlinComponent in legacy variant mapping: ${kotlinComponent.javaClass}")
             }
-            val configurations = usages.map { target.project.configurations.getByName(it.dependencyConfigurationName) }
 
             // Include Sources
             moduleHolder.whenPublicationAssigned { publication ->
@@ -201,14 +207,28 @@ internal fun mapTargetCompilationsToKpmVariants(target: AbstractKotlinTarget, pu
                 }
             }
 
-            // FIXME: apply overrides for attributes and artifacts from the DefaultKotlinUsageContext!
             // FIXME: include additional variants into project structure metadata?
 
-            VariantPublishingConfigurator.get(target.project).configureSingleVariantPublishing(
+            val request = BasicPlatformPublicationToMavenRequest(
-                variant,
+                kotlinComponent.name,
+                mainModule,
                 moduleHolder,
-                configurations
+                usages.map { usage ->
+                    val variant = mainModule.variants.withType<LegacyMappedVariant>().single {
+                        it.compilation == usage.compilation
+                    }
+                    (usage as? DefaultKotlinUsageContext) ?: error("unexpected KotlinUsageContext type: ${usage.javaClass}")
+                    AdvancedVariantPublicationRequest(
+                        variant,
+                        target.project.configurations.getByName(usage.dependencyConfigurationName),
+                        usage.overrideConfigurationAttributes,
+                        usage.overrideConfigurationArtifacts,
+                        usage.includeIntoProjectStructureMetadata
+                    )
+                }
             )
+
+            VariantPublishingConfigurator.get(target.project).configurePublishing(request)
         }
     }
 }

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/android/KotlinAndroidTarget.kt

@@ -15,6 +15,7 @@ import org.gradle.api.attributes.Attribute
 import org.gradle.api.attributes.Usage.JAVA_RUNTIME_JARS
 import org.jetbrains.kotlin.gradle.plugin.*
 import org.jetbrains.kotlin.gradle.utils.dashSeparatedName
+import org.jetbrains.kotlin.gradle.utils.listProperty
 import org.jetbrains.kotlin.gradle.utils.lowerCamelCaseName
 
 open class KotlinAndroidTarget(
@@ -205,7 +206,7 @@ open class KotlinAndroidTarget(
                 compilation,
                 project.usageByName(usageName),
                 dependencyConfigurationName,
-                overrideConfigurationArtifacts = setOf(artifact),
+                overrideConfigurationArtifacts = project.listProperty { listOf(artifact) },
                 overrideConfigurationAttributes = HierarchyAttributeContainer(configuration.attributes) {
                     val valueString = run {
                         val value = configuration.attributes.getAttribute(it)

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/KotlinJsTarget.kt

@@ -29,6 +29,7 @@ import org.jetbrains.kotlin.gradle.tasks.locateTask
 import org.jetbrains.kotlin.gradle.testing.internal.KotlinTestReport
 import org.jetbrains.kotlin.gradle.testing.testTaskName
 import org.jetbrains.kotlin.gradle.utils.dashSeparatedName
+import org.jetbrains.kotlin.gradle.utils.listProperty
 import org.jetbrains.kotlin.gradle.utils.lowerCamelCaseName
 import javax.inject.Inject
 
@@ -101,7 +102,7 @@ constructor(
                     compilation = compilations.getByName(KotlinCompilation.MAIN_COMPILATION_NAME),
                     usage = project.usageByName("java-api-jars"),
                     dependencyConfigurationName = commonFakeApiElementsConfigurationName,
-                    overrideConfigurationArtifacts = emptySet()
+                    overrideConfigurationArtifacts = project.listProperty { emptyList() }
                 )
     }
 

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/ir/KotlinJsIrTarget.kt

@@ -26,6 +26,7 @@ import org.jetbrains.kotlin.gradle.targets.js.dsl.KotlinJsTargetDsl
 import org.jetbrains.kotlin.gradle.targets.js.npm.npmProject
 import org.jetbrains.kotlin.gradle.tasks.locateOrRegisterTask
 import org.jetbrains.kotlin.gradle.tasks.registerTask
+import org.jetbrains.kotlin.gradle.utils.listProperty
 import org.jetbrains.kotlin.gradle.utils.lowerCamelCaseName
 import javax.inject.Inject
 
@@ -67,7 +68,7 @@ constructor(
                     compilation = compilations.getByName(MAIN_COMPILATION_NAME),
                     usage = project.usageByName("java-api-jars"),
                     dependencyConfigurationName = commonFakeApiElementsConfigurationName,
-                    overrideConfigurationArtifacts = emptySet()
+                    overrideConfigurationArtifacts = project.listProperty { emptyList() }
                 )
     }