Gradle: Fix task property validation issues

tools/kotlin-native-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/plugin/konan/KonanLibrariesSpec.kt

@@ -33,7 +33,10 @@ import org.jetbrains.kotlin.konan.target.KonanTarget
 import org.jetbrains.kotlin.library.SearchPathResolver
 import java.io.File
 
-open class KonanLibrariesSpec(val task: KonanArtifactWithLibrariesTask, val project: Project) {
+open class KonanLibrariesSpec(
+        @Internal val task: KonanArtifactWithLibrariesTask,
+        @Internal val project: Project
+) {
 
     @InputFiles val files = mutableSetOf<FileCollection>()
 
@@ -50,6 +53,7 @@ open class KonanLibrariesSpec(val task: KonanArtifactWithLibrariesTask, val proj
         @Input get() = mutableSetOf<File>().apply {
             addAll(explicitRepos)
             add(task.destinationDir) // TODO: Check if task is a library - create a Library interface
+            add(task.destinationDir) // TODO: Check if task is a library - create a Library interface
             add(task.project.konanLibsBaseDir.targetSubdir(target))
             addAll(artifacts.flatMap { it.libraries.repos })
             addAll(task.platformConfiguration.files.map { it.parentFile })
@@ -59,7 +63,9 @@ open class KonanLibrariesSpec(val task: KonanArtifactWithLibrariesTask, val proj
         @Internal get() = task.konanTarget
 
     private val friendsTasks = mutableSetOf<KonanBuildingTask>()
-    val friends:Set<File> get() = mutableSetOf<File>().apply {
+
+    @get:Internal // Taken into account by tasks's dependOn.
+    val friends: Set<File> get() = mutableSetOf<File>().apply {
         addAll(friendsTasks.map { it.artifact })
     }
 

tools/kotlin-native-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/plugin/konan/tasks/KonanBaseTasks.kt

@@ -48,7 +48,12 @@ internal val Project.simpleOsName
 /** A task with a KonanTarget specified. */
 abstract class KonanTargetableTask: DefaultTask() {
 
-    @Input internal lateinit var konanTarget: KonanTarget
+    @get:Input
+    val konanTargetName: String
+        get() = konanTarget.name
+
+    @get:Internal
+    internal lateinit var konanTarget: KonanTarget
 
     internal open fun init(target: KonanTarget) {
         this.konanTarget = target

tools/kotlin-native-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/plugin/konan/tasks/KonanBuildingTask.kt

@@ -18,6 +18,7 @@ package org.jetbrains.kotlin.gradle.plugin.tasks
 
 import org.gradle.api.tasks.Console
 import org.gradle.api.tasks.Input
+import org.gradle.api.tasks.Internal
 import org.gradle.api.tasks.TaskAction
 import org.jetbrains.kotlin.gradle.plugin.konan.*
 import org.jetbrains.kotlin.gradle.plugin.model.KonanModelArtifact
@@ -27,6 +28,7 @@ import java.io.File
 /** Base class for both interop and compiler tasks. */
 abstract class KonanBuildingTask: KonanArtifactWithLibrariesTask(), KonanBuildingSpec {
 
+    @get:Internal
     internal abstract val toolRunner: KonanToolRunner
     internal abstract fun toModelArtifact(): KonanModelArtifact
 

tools/kotlin-native-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/plugin/konan/tasks/KonanCompileTask.kt

@@ -36,8 +36,8 @@ import java.io.File
  */
 abstract class KonanCompileTask: KonanBuildingTask(), KonanCompileSpec {
 
-    @Internal override val toolRunner =
-        KonanCompilerRunner(project, project.konanExtension.jvmArgs)
+    @get:Internal
+    override val toolRunner = KonanCompilerRunner(project, project.konanExtension.jvmArgs)
 
     abstract val produce: CompilerOutputKind
         @Internal get
@@ -56,13 +56,13 @@ abstract class KonanCompileTask: KonanBuildingTask(), KonanCompileSpec {
 
     @Internal var enableMultiplatform = false
 
-    internal val commonSrcFiles_ = mutableSetOf<FileCollection>()
+    private val commonSrcFiles_ = mutableSetOf<FileCollection>()
     val commonSrcFiles: Collection<FileCollection>
         @Internal get() = if (enableMultiplatform) commonSrcFiles_ else emptyList()
 
     // Other compilation parameters -------------------------------------------
 
-    protected val srcFiles_ = mutableSetOf<FileCollection>()
+    private val srcFiles_ = mutableSetOf<FileCollection>()
     val srcFiles: Collection<FileCollection>
         @Internal get() = srcFiles_.takeIf { !it.isEmpty() } ?: listOf(project.konanDefaultSrcFiles)
 
@@ -70,7 +70,7 @@ abstract class KonanCompileTask: KonanBuildingTask(), KonanCompileSpec {
         @InputFiles get() = listOf(srcFiles, commonSrcFiles).flatten()
 
     private val allSourceFiles: List<File>
-        @Internal get() = allSources
+        get() = allSources
                 .flatMap { it.files }
                 .filter { it.name.endsWith(".kt") }
 
@@ -101,6 +101,7 @@ abstract class KonanCompileTask: KonanBuildingTask(), KonanCompileSpec {
      * In regular (one-stage) compilation, sources are directly compiled into a final native binary.
      * In two-stage compilation, sources are compiled into a klib first and then a final native binary is produced from this klib.
      */
+    @get:Input
     abstract val enableTwoStageCompilation: Boolean
 
     protected fun directoryToKt(dir: Any) = project.fileTree(dir).apply {
@@ -377,6 +378,7 @@ abstract class KonanCompileNativeBinary: KonanCompileTask() {
 open class KonanCompileProgramTask: KonanCompileNativeBinary() {
     override val produce: CompilerOutputKind get() = CompilerOutputKind.PROGRAM
 
+    @Internal
     var runTask: Exec? = null
 
     inner class RunArgumentProvider(): CommandLineArgumentProvider {

tools/kotlin-native-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/plugin/konan/tasks/KonanInteropTask.kt

@@ -22,6 +22,7 @@ import org.gradle.api.file.FileCollection
 import org.gradle.api.tasks.*
 import org.gradle.util.ConfigureUtil
 import org.gradle.workers.IsolationMode
+import org.gradle.workers.WorkAction
 import org.gradle.workers.WorkerExecutor
 import org.jetbrains.kotlin.gradle.plugin.konan.*
 import org.jetbrains.kotlin.gradle.plugin.konan.KonanInteropSpec.IncludeDirectoriesSpec
@@ -41,10 +42,10 @@ import javax.inject.Inject
  * A task executing cinterop tool with the given args and compiling the stubs produced by this tool.
  */
 
-open class KonanInteropTask @Inject constructor(val workerExecutor: WorkerExecutor) : KonanBuildingTask(), KonanInteropSpec {
+open class KonanInteropTask @Inject constructor(@Internal val workerExecutor: WorkerExecutor) : KonanBuildingTask(), KonanInteropSpec {
 
-    @Internal override val toolRunner: KonanToolRunner =
-        KonanInteropRunner(project, project.konanExtension.jvmArgs)
+    @get:Internal
+    override val toolRunner: KonanToolRunner = KonanInteropRunner(project, project.konanExtension.jvmArgs)
 
     override fun init(config: KonanBuildingConfig<*>, destinationDir: File, artifactName: String, target: KonanTarget) {
         super.init(config, destinationDir, artifactName, target)