[K/N] Support compile-only mode for legacy test infra

kotlin-native/build-tools/src/main/kotlin/org/jetbrains/kotlin/ExecutorService.kt

@@ -50,6 +50,7 @@ fun create(project: Project): ExecutorService {
     val configurables = project.testTargetConfigurables
 
     return when {
+        project.compileOnlyTests -> noopExecutor(project)
         project.hasProperty("remote") -> sshExecutor(project, testTarget)
         configurables is WasmConfigurables -> wasmExecutor(project)
         configurables is ConfigurablesWithEmulator && testTarget != HostManager.host -> emulatorExecutor(project, testTarget)
@@ -59,6 +60,19 @@ fun create(project: Project): ExecutorService {
     }
 }
 
+private fun noopExecutor(project: Project) = object : ExecutorService {
+    override val project: Project
+        get() = project
+
+    override fun execute(action: Action<in ExecSpec>): ExecResult? = object : ExecResult {
+        override fun getExitValue(): Int = 0
+
+        override fun assertNormalExitValue(): ExecResult = this
+
+        override fun rethrowFailure(): ExecResult = this
+    }
+}
+
 private fun wasmExecutor(project: Project) = object : ExecutorService {
     val absoluteTargetToolchain = project.testTargetConfigurables.absoluteTargetToolchain
 

kotlin-native/build-tools/src/main/kotlin/org/jetbrains/kotlin/FrameworkTest.kt

@@ -186,6 +186,9 @@ open class FrameworkTest : DefaultTask(), KonanTestExecutable {
         // Build test executable as a first action of the task before executing the test
         buildTestExecutable()
         doBeforeRun?.execute(this)
+        if (project.compileOnlyTests) {
+            return
+        }
         runTest(executorService = project.executor, testExecutable = Paths.get(executable))
     }
 

kotlin-native/build-tools/src/main/kotlin/org/jetbrains/kotlin/KotlinNativeTest.kt

@@ -164,6 +164,9 @@ open class KonanGTest : KonanTest() {
     @TaskAction
     override fun run() {
         doBeforeRun?.execute(this)
+        if (project.compileOnlyTests) {
+            return
+        }
         runProcess(
                 executor = { project.executor.execute(it) },
                 executable = executable,
@@ -302,6 +305,9 @@ open class KonanLocalTest : KonanTest() {
     @TaskAction
     override fun run() {
         doBeforeRun?.execute(this)
+        if (project.compileOnlyTests) {
+            return
+        }
         val times = if (multiRuns && multiArguments != null) multiArguments!!.size else 1
         var output = ProcessOutput("", "", 0)
         for (i in 1..times) {

kotlin-native/build-tools/src/main/kotlin/org/jetbrains/kotlin/Utils.kt

@@ -86,6 +86,9 @@ val Project.testOutputExternal
 val Project.cacheRedirectorEnabled
     get() = findProperty("cacheRedirectorEnabled")?.toString()?.toBoolean() ?: false
 
+val Project.compileOnlyTests: Boolean
+    get() = hasProperty("compile-only-tests")
+
 fun Project.redirectIfEnabled(url: String):String = if (cacheRedirectorEnabled) {
     val base = URL(url)
     "https://cache-redirector.jetbrains.com/${base.host}/${base.path}"