[Gradle, JS] Add additinal DSL (with KotlinLibrary or Executable) for mixed and legacy

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

@@ -108,8 +108,11 @@ constructor(
 
     private val browserLazyDelegate = lazy {
         project.objects.newInstance(KotlinBrowserJs::class.java, this).also {
-            it.configure()
-            browserConfiguredHandlers.forEach { handler -> handler(it) }
+            browserConfiguredHandlers.forEach { handler ->
+                it.whenProducingConfigured {
+                    handler(this)
+                }
+            }
             browserConfiguredHandlers.clear()
         }
     }
@@ -126,8 +129,12 @@ constructor(
 
     private val nodejsLazyDelegate = lazy {
         project.objects.newInstance(KotlinNodeJs::class.java, this).also {
-            it.configure()
-            nodejsConfiguredHandlers.forEach { handler -> handler(it) }
+            nodejsConfiguredHandlers.forEach { handler ->
+                it.whenProducingConfigured {
+                    handler(this)
+                }
+            }
+
             nodejsConfiguredHandlers.clear()
         }
     }

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

@@ -66,6 +66,10 @@ interface KotlinJsSubTargetDsl {
         }
     }
 
+    fun produceKotlinLibrary()
+
+    fun produceExecutable()
+
     val testRuns: NamedDomainObjectContainer<KotlinJsPlatformTestRun>
 }
 

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

@@ -43,6 +43,13 @@ open class KotlinBrowserJs @Inject constructor(target: KotlinJsTarget) :
     override val testTaskDescription: String
         get() = "Run all ${target.name} tests inside browser using karma and webpack"
 
+    override fun configure() {
+        super.configure()
+        browserProducingConfiguredHandlers.forEach { handler ->
+            handler(this)
+        }
+    }
+
     override fun configureDefaultTestFramework(testTask: KotlinJsTest) {
         testTask.useKarma {
             useChromeHeadless()
@@ -287,6 +294,14 @@ open class KotlinBrowserJs @Inject constructor(target: KotlinJsTarget) :
         }
     }
 
+    fun whenProducingConfigured(body: KotlinBrowserJs.() -> Unit) {
+        if (producingConfigured) {
+            this.body()
+        } else {
+            browserProducingConfiguredHandlers += body
+        }
+    }
+
     companion object {
         const val DCE_TASK_PREFIX = "processDce"
         const val DCE_TASK_SUFFIX = "kotlinJs"

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

@@ -37,12 +37,26 @@ abstract class KotlinJsSubTarget(
     final override lateinit var testRuns: NamedDomainObjectContainer<KotlinJsPlatformTestRun>
         private set
 
-    fun configure() {
-        NpmResolverPlugin.apply(project)
+    protected val producingConfigured: Boolean = false
+
+    protected val browserProducingConfiguredHandlers: MutableList<KotlinBrowserJs.() -> Unit> = mutableListOf()
+    protected val nodejsProducingConfiguredHandlers: MutableList<KotlinNodeJs.() -> Unit> = mutableListOf()
+
+    override fun produceKotlinLibrary() {
+        configure()
+    }
+
+    override fun produceExecutable() {
+        configure()
 
         configureBuildVariants()
-        configureTests()
         configureMain()
+    }
+
+    protected open fun configure() {
+        NpmResolverPlugin.apply(project)
+
+        configureTests()
 
         target.compilations.all {
             val npmProject = it.npmProject

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

@@ -20,6 +20,13 @@ open class KotlinNodeJs @Inject constructor(target: KotlinJsTarget) :
 
     private val runTaskName = disambiguateCamelCased("run")
 
+    override fun configure() {
+        super.configure()
+        nodejsProducingConfiguredHandlers.forEach { handler ->
+            handler(this)
+        }
+    }
+
     override fun runTask(body: NodeJsExec.() -> Unit) {
         (project.tasks.getByName(runTaskName) as NodeJsExec).body()
     }
@@ -43,4 +50,12 @@ open class KotlinNodeJs @Inject constructor(target: KotlinJsTarget) :
 
     override fun configureBuildVariants() {
     }
+
+    fun whenProducingConfigured(body: KotlinNodeJs.() -> Unit) {
+        if (producingConfigured) {
+            this.body()
+        } else {
+            nodejsProducingConfiguredHandlers += body
+        }
+    }
 }