[Gradle, JS] Use separate task class for good configuration caching

^KT-34014 fixed
^KT-49505 fixed

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

@@ -0,0 +1,45 @@
+/*
+ * Copyright 2010-2021 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.yarn
+
+import org.gradle.api.DefaultTask
+import org.gradle.api.file.FileSystemOperations
+import org.gradle.api.file.RegularFileProperty
+import org.gradle.api.provider.Property
+import org.gradle.api.provider.Provider
+import org.gradle.api.tasks.*
+import java.io.File
+import javax.inject.Inject
+
+abstract class YarnLockCopyTask : DefaultTask() {
+    @get:InputFile
+    @get:PathSensitive(PathSensitivity.RELATIVE)
+    abstract val inputFile: RegularFileProperty
+
+    @get:Internal
+    abstract val outputDirectory: RegularFileProperty
+
+    @get:Internal
+    abstract val fileName: Property<String>
+
+    @get:OutputFile
+    val outputFile: Provider<File>
+        get() = outputDirectory.map { regularFile ->
+            regularFile.asFile.resolve(fileName.get())
+        }
+
+    @get:Inject
+    abstract val fs: FileSystemOperations
+
+    @TaskAction
+    fun copy() {
+        fs.copy { copy ->
+            copy.from(inputFile)
+            copy.rename { fileName.get() }
+            copy.into(outputDirectory)
+        }
+    }
+}

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

@@ -79,37 +79,21 @@ open class YarnPlugin : Plugin<Project> {
                 }
             }
 
-        val storeYarnLock = tasks.register("kotlinStoreYarnLock") {
+        val storeYarnLock = tasks.register("kotlinStoreYarnLock", YarnLockCopyTask::class.java) {
             it.dependsOn(kotlinNpmInstall)
-            val yarnLock = nodeJs.rootPackageDir.resolve("yarn.lock")
-
-            it.doLast {
-                copy { copy ->
-                    copy.from(yarnLock)
-                    copy.rename { yarnRootExtension.lockFileName }
-                    copy.into(yarnRootExtension.lockFileDirectory)
-                }
-            }
-
-            it.inputs.file(yarnLock).withPropertyName("inputFile")
-            it.outputs.file(yarnRootExtension.lockFileDirectory.resolve(yarnRootExtension.lockFileName)).withPropertyName("outputFile")
+            it.inputFile.set(nodeJs.rootPackageDir.resolve("yarn.lock"))
+            it.outputDirectory.set(yarnRootExtension.lockFileDirectory)
+            it.fileName.set(yarnRootExtension.lockFileName)
         }
 
-        val restoreYarnLock = tasks.register("kotlinRestoreYarnLock") {
+        val restoreYarnLock = tasks.register("kotlinRestoreYarnLock", YarnLockCopyTask::class.java) {
             val lockFile = yarnRootExtension.lockFileDirectory.resolve(yarnRootExtension.lockFileName)
+            it.inputFile.set(yarnRootExtension.lockFileDirectory.resolve(yarnRootExtension.lockFileName))
+            it.outputDirectory.set(nodeJs.rootPackageDir)
+            it.fileName.set("yarn.lock")
             it.onlyIf {
                 lockFile.exists()
             }
-            it.doLast {
-                copy { copy ->
-                    copy.from(lockFile)
-                    copy.rename { "yarn.lock" }
-                    copy.into(nodeJs.rootPackageDir)
-                }
-            }
-
-            it.inputs.file(lockFile).withPropertyName("inputFile")
-            it.outputs.file(nodeJs.rootPackageDir.resolve("yarn.lock")).withPropertyName("outputFile")
         }
 
         kotlinNpmInstall.configure {