[Gradle, JS] Add distribution DSL

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

@@ -0,0 +1,12 @@
+/*
+ * Copyright 2010-2019 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.gradle.targets.js.dsl
+
+import java.io.File
+
+interface Distribution {
+    var directory: File?
+}

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

@@ -0,0 +1,10 @@
+/*
+ * Copyright 2010-2019 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.gradle.targets.js.dsl
+
+@Experimental(level = Experimental.Level.WARNING)
+@Target(AnnotationTarget.FUNCTION)
+annotation class ExperimentalDistributionDsl

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

@@ -54,6 +54,16 @@ interface KotlinJsBrowserDsl : KotlinJsSubTargetDsl {
         }
     }
 
+    @ExperimentalDistributionDsl
+    fun distribution(body: Distribution.() -> Unit)
+
+    @ExperimentalDistributionDsl
+    fun distribution(fn: Closure<*>) {
+        distribution {
+            ConfigureUtil.configure(fn, this)
+        }
+    }
+
     fun webpackTask(body: KotlinWebpack.() -> Unit)
     fun webpackTask(fn: Closure<*>) {
         webpackTask {

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

@@ -0,0 +1,13 @@
+/*
+ * Copyright 2010-2019 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.gradle.targets.js.subtargets
+
+import org.jetbrains.kotlin.gradle.targets.js.dsl.Distribution
+import java.io.File
+
+class BrowserDistribution : Distribution {
+    override var directory: File? = null
+}

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

@@ -7,16 +7,15 @@ package org.jetbrains.kotlin.gradle.targets.js.subtargets
 
 import org.gradle.api.NamedDomainObjectContainer
 import org.gradle.api.Task
+import org.gradle.api.plugins.BasePluginConvention
+import org.gradle.api.tasks.Copy
 import org.gradle.api.tasks.TaskProvider
 import org.gradle.language.base.plugins.LifecycleBasePlugin
 import org.jetbrains.kotlin.gradle.dsl.KotlinJsDce
 import org.jetbrains.kotlin.gradle.plugin.KotlinCompilation
 import org.jetbrains.kotlin.gradle.plugin.mpp.KotlinJsCompilation
 import org.jetbrains.kotlin.gradle.targets.js.KotlinJsTarget
-import org.jetbrains.kotlin.gradle.targets.js.dsl.BuildVariant
+import org.jetbrains.kotlin.gradle.targets.js.dsl.*
-import org.jetbrains.kotlin.gradle.targets.js.dsl.BuildVariantKind
-import org.jetbrains.kotlin.gradle.targets.js.dsl.ExperimentalDceDsl
-import org.jetbrains.kotlin.gradle.targets.js.dsl.KotlinJsBrowserDsl
 import org.jetbrains.kotlin.gradle.targets.js.nodejs.NodeJsRootPlugin
 import org.jetbrains.kotlin.gradle.targets.js.npm.npmProject
 import org.jetbrains.kotlin.gradle.targets.js.testing.KotlinJsTest
@@ -37,6 +36,7 @@ open class KotlinBrowserJs @Inject constructor(target: KotlinJsTarget) :
     private val commonWebpackConfigurations: MutableList<KotlinWebpack.() -> Unit> = mutableListOf()
     private val commonRunConfigurations: MutableList<KotlinWebpack.() -> Unit> = mutableListOf()
     private val dceConfigurations: MutableList<KotlinJsDce.() -> Unit> = mutableListOf()
+    private val distribution: Distribution = BrowserDistribution()
 
     private lateinit var buildVariants: NamedDomainObjectContainer<BuildVariant>
 
@@ -53,6 +53,11 @@ open class KotlinBrowserJs @Inject constructor(target: KotlinJsTarget) :
         commonRunConfigurations.add(body)
     }
 
+    @ExperimentalDistributionDsl
+    override fun distribution(body: Distribution.() -> Unit) {
+        distribution.body()
+    }
+
     override fun webpackTask(body: KotlinWebpack.() -> Unit) {
         commonWebpackConfigurations.add(body)
     }
@@ -143,6 +148,22 @@ open class KotlinBrowserJs @Inject constructor(target: KotlinJsTarget) :
 
         val compileKotlinTask = compilation.compileKotlinTask
 
+        val basePluginConvention = project.convention.plugins["base"] as BasePluginConvention?
+
+        distribution.directory = distribution.directory ?: project.buildDir.resolve(basePluginConvention!!.distsDirName)
+
+        val distributionTask = project.registerTask<Copy>(
+            disambiguateCamelCased(
+                DISTRIBUTION_TASK_NAME
+            )
+        ) {
+            it.from(compilation.output.resourcesDir)
+            it.into(distribution.directory!!)
+        }
+
+        val assembleTask = project.tasks.getByName(LifecycleBasePlugin.ASSEMBLE_TASK_NAME)
+        assembleTask.dependsOn(distributionTask)
+
         buildVariants.all { buildVariant ->
             val kind = buildVariant.kind
             val webpackTask = project.registerTask<KotlinWebpack>(
@@ -154,13 +175,15 @@ open class KotlinBrowserJs @Inject constructor(target: KotlinJsTarget) :
             ) {
                 it.dependsOn(
                     nodeJs.npmInstallTask,
-                    target.project.tasks.getByName(compilation.processResourcesTaskName)
+                    target.project.tasks.getByName(compilation.processResourcesTaskName),
+                    distributionTask
                 )
 
                 it.configureOptimization(kind)
 
                 it.compilation = compilation
                 it.description = "build webpack ${kind.name.toLowerCase()} bundle"
+                it.destinationDirectory = distribution.directory
 
                 when (kind) {
                     BuildVariantKind.PRODUCTION -> {
@@ -180,21 +203,10 @@ open class KotlinBrowserJs @Inject constructor(target: KotlinJsTarget) :
                 commonWebpackConfigurations.forEach { configure ->
                     it.configure()
                 }
-
-                it.doLast { _ ->
-                    val resourcesDir = compilation.output.resourcesDir
-                    if (resourcesDir.exists()) {
-                        resourcesDir
-                            .copyRecursively(
-                                target = it.destinationDirectory!!,
-                                overwrite = true
-                            )
-                    }
-                }
             }
 
             if (kind == BuildVariantKind.PRODUCTION) {
-                project.tasks.getByName(LifecycleBasePlugin.ASSEMBLE_TASK_NAME).dependsOn(webpackTask)
+                assembleTask.dependsOn(webpackTask)
                 project.registerTask<Task>(disambiguateCamelCased(WEBPACK_TASK_NAME)) {
                     it.dependsOn(webpackTask)
                 }
@@ -274,5 +286,6 @@ open class KotlinBrowserJs @Inject constructor(target: KotlinJsTarget) :
         const val DEVELOPMENT = "development"
 
         private const val WEBPACK_TASK_NAME = "webpack"
+        private const val DISTRIBUTION_TASK_NAME = "distribution"
     }
 }

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

@@ -101,16 +101,6 @@ open class KotlinWebpack : DefaultTask(), RequiresNpmDependencies {
     open val evaluatedConfigFile: File
         @OutputFile get() = reportDir.resolve("webpack.config.evaluated.js")
 
-    val resourcesDir: File?
-        @Optional
-        @InputDirectory
-        get() {
-            val resourcesDir = compilation.output.resourcesDir
-            return if (resourcesDir.exists()) {
-                resourcesDir
-            } else null
-        }
-
     @Input
     var bin: String = "webpack/bin/webpack.js"