Kapt: Forbid using the deprecated (original) kapt

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/kotlin/org/jetbrains/kotlin/gradle/BaseGradleIT.kt

@@ -29,6 +29,21 @@ abstract class BaseGradleIT {
         workingDir.deleteRecursively()
     }
 
+    fun Project.allowOriginalKapt() {
+        if (!projectDir.exists()) {
+            setupWorkingDir()
+        }
+
+        val allowOriginalKaptOption = "allow.original.kapt = true"
+
+        val gradleProperties = File(projectDir, "gradle.properties")
+        if (gradleProperties.exists()) {
+            gradleProperties.appendText("\n$allowOriginalKaptOption")
+        } else {
+            gradleProperties.writeText(allowOriginalKaptOption)
+        }
+    }
+
     // https://developer.android.com/studio/intro/update.html#download-with-gradle
     fun acceptAndroidSdkLicenses() = defaultBuildOptions().androidHome?.let {
         val sdkLicenses = File(it, "licenses")

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/kotlin/org/jetbrains/kotlin/gradle/KaptIT.kt

@@ -15,6 +15,7 @@ class KaptIT: BaseGradleIT() {
     @Test
     fun testSimple() {
         val project = Project("kaptSimple", GRADLE_VERSION)
+        project.allowOriginalKapt()
 
         project.build("build") {
             assertSuccessful()
@@ -43,6 +44,7 @@ class KaptIT: BaseGradleIT() {
     @Test
     fun testEnumConstructor() {
         val project = Project("kaptEnumConstructor", GRADLE_VERSION)
+        project.allowOriginalKapt()
 
         project.build("build") {
             assertSuccessful()
@@ -59,6 +61,7 @@ class KaptIT: BaseGradleIT() {
     @Test
     fun testStubs() {
         val project = Project("kaptStubs", GRADLE_VERSION)
+        project.allowOriginalKapt()
 
         project.build("build") {
             assertSuccessful()
@@ -84,7 +87,7 @@ class KaptIT: BaseGradleIT() {
     @Test
     fun testStubsWithoutJava() {
         val project = Project("kaptStubs", GRADLE_VERSION)
-        project.setupWorkingDir()
+        project.allowOriginalKapt()
         project.projectDir.allJavaFiles().forEach { it.delete() }
 
         project.build("build") {
@@ -110,6 +113,7 @@ class KaptIT: BaseGradleIT() {
     private fun doTestIncrementalBuild(projectName: String, compileTasks: Array<String>) {
         val compileTasksUpToDate = compileTasks.map { it + " UP-TO-DATE" }.toTypedArray()
         val project = Project(projectName, "2.10")
+        project.allowOriginalKapt()
 
         project.build("build") {
             assertSuccessful()
@@ -145,7 +149,10 @@ class KaptIT: BaseGradleIT() {
 
     @Test
     fun testArguments() {
-        Project("kaptArguments", GRADLE_VERSION).build("build") {
+        val project = Project("kaptArguments", GRADLE_VERSION)
+        project.allowOriginalKapt()
+
+        project.build("build") {
             assertSuccessful()
             assertContains("kapt: Using class file stubs")
             assertContains(":compileKotlin")
@@ -159,7 +166,10 @@ class KaptIT: BaseGradleIT() {
 
     @Test
     fun testInheritedAnnotations() {
-        Project("kaptInheritedAnnotations", GRADLE_VERSION).build("build") {
+        val project = Project("kaptInheritedAnnotations", GRADLE_VERSION)
+        project.allowOriginalKapt()
+
+        project.build("build") {
             assertSuccessful()
             assertFileExists("build/generated/source/kapt/main/example/TestClassGenerated.java")
             assertFileExists("build/generated/source/kapt/main/example/AncestorClassGenerated.java")
@@ -170,7 +180,10 @@ class KaptIT: BaseGradleIT() {
 
     @Test
     fun testOutputKotlinCode() {
-        Project("kaptOutputKotlinCode", GRADLE_VERSION).build("build") {
+        val project = Project("kaptOutputKotlinCode", GRADLE_VERSION)
+        project.allowOriginalKapt()
+
+        project.build("build") {
             assertSuccessful()
             assertContains("kapt: Using class file stubs")
             assertContains(":compileKotlin")
@@ -186,7 +199,9 @@ class KaptIT: BaseGradleIT() {
     @Test
     fun testInternalUserIsModifiedStubsIC() {
         val options = defaultBuildOptions().copy(incremental = true)
+
         val project = Project("kaptStubs", GRADLE_VERSION)
+        project.allowOriginalKapt()
 
         project.build("build", options = options) {
             assertSuccessful()
@@ -206,7 +221,9 @@ class KaptIT: BaseGradleIT() {
     @Test
     fun testKotlinCompilerNotCalledStubsIC() {
         val options = defaultBuildOptions().copy(incremental = true)
+
         val project = Project("kaptStubs", GRADLE_VERSION)
+        project.allowOriginalKapt()
 
         project.build("build", options = options) {
             assertSuccessful()

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/kotlin/org/jetbrains/kotlin/gradle/KaptIncrementalIT.kt

@@ -37,6 +37,7 @@ abstract class KaptIncrementalBaseIT(val shouldUseStubs: Boolean, val useKapt3:
 
                 if (useKapt3) {
                     buildGradle.modify { it.replace(APPLY_KAPT3_PLUGIN_PLACEHOLDER, APPLY_KAPT3_PLUGIN) }
+                    allowOriginalKapt()
                 }
             }
 

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/AndroidDaggerProject/app/build.gradle

@@ -13,6 +13,7 @@ buildscript {
 
 apply plugin: 'com.android.application'
 apply plugin: 'kotlin-android'
+apply plugin: 'kotlin-kapt'
 apply plugin: 'kotlin-android-extensions'
 
 android {
@@ -48,10 +49,6 @@ dependencies {
     provided 'org.glassfish:javax.annotation:10.0-b28'
 }
 
-kapt {
-    generateStubs = true
-}
-
 androidExtensions {
     experimental = true
 }

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/AndroidIcepickProject/app/build.gradle

@@ -1,5 +1,6 @@
 apply plugin: 'com.android.application'
 apply plugin: 'kotlin-android'
+apply plugin: 'kotlin-kapt'
 
 dependencies {
     compile "frankiesardo:icepick:3.2.0"
@@ -39,7 +40,3 @@ repositories {
     mavenLocal()
     maven { url 'https://maven.google.com' }
 }
-
-kapt {
-    generateStubs = true
-}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/kapt2/inheritedAnnotations/build.gradle

@@ -22,7 +22,3 @@ dependencies {
     compile "org.jetbrains.kotlin:annotation-processor-example:$kotlin_version"
     kapt "org.jetbrains.kotlin:annotation-processor-example:$kotlin_version"
 }
-
-kapt {
-    generateStubs = true
-}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/kapt2/kaptOutputKotlinCode/build.gradle

@@ -23,7 +23,6 @@ dependencies {
 }
 
 kapt {
-    generateStubs = true
     arguments {
         arg("suffix", "Customized")
         arg("generate.kotlin.code", "true")

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/internal/AnnotationProcessingManager.kt

@@ -17,6 +17,7 @@
 package org.jetbrains.kotlin.gradle.internal
 
 import com.android.build.gradle.BaseExtension
+import org.gradle.api.GradleException
 import org.gradle.api.Project
 import org.gradle.api.UnknownDomainObjectException
 import org.gradle.api.file.FileCollection
@@ -172,13 +173,24 @@ class AnnotationProcessingManager(
 
     val kaptProcessorPath get() = setOf(wrappersDirectory) + aptFiles + javaTask.classpath
 
+    private fun allowToUseOriginalKapt(): Boolean {
+        return project.hasProperty("allow.original.kapt")
+                && project.property("allow.original.kapt").toString().toBoolean()
+    }
+
     fun setupKapt() {
         originalJavaCompilerArgs = javaTask.options.compilerArgs
 
         if (aptFiles.isEmpty()) return
 
-        project.logger.warn("${project.name}: " +
+        val deprecationMessage = "${project.name}: " +
-                "Original kapt is deprecated. Please add \"apply plugin: 'kotlin-kapt'\" to your build.gradle.")
+                "Original kapt is deprecated. Please add \"apply plugin: 'kotlin-kapt'\" to your build.gradle."
+
+        if (allowToUseOriginalKapt()) {
+            project.logger.warn(deprecationMessage)
+        } else {
+            throw GradleException(deprecationMessage)
+        }
 
         if (project.plugins.findPlugin(ANDROID_APT_PLUGIN_ID) != null) {
             project.logger.warn("Please do not use `$ANDROID_APT_PLUGIN_ID` with kapt.")