From dd95256b24f7d41b688603c0bf4afc9510e97b5b Mon Sep 17 00:00:00 2001
From: Stanislav Erokhin <Stanislav.Erokhin@jetbrains.com>
Date: Fri, 6 Jan 2023 19:27:20 +0100
Subject: [PATCH] [Gradle][MPP] Add console warning about deprecated K/N
 targets

---
 .../plugin/mpp/KotlinMultiplatformPlugin.kt   |  7 ++----
 .../mpp/internal/deprecationDiagnostics.kt    | 25 +++++++++++++++++++
 2 files changed, 27 insertions(+), 5 deletions(-)
 create mode 100644 libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/plugin/mpp/internal/deprecationDiagnostics.kt

diff --git a/libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/plugin/mpp/KotlinMultiplatformPlugin.kt b/libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/plugin/mpp/KotlinMultiplatformPlugin.kt
index 1f0927eef58..c63bab91842 100644
--- a/libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/plugin/mpp/KotlinMultiplatformPlugin.kt
+++ b/libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/plugin/mpp/KotlinMultiplatformPlugin.kt
@@ -18,15 +18,12 @@ import org.jetbrains.kotlin.gradle.dsl.kotlinExtension
 import org.jetbrains.kotlin.gradle.dsl.multiplatformExtension
 import org.jetbrains.kotlin.gradle.internal.customizeKotlinDependencies
 import org.jetbrains.kotlin.gradle.plugin.*
-import org.jetbrains.kotlin.gradle.plugin.ide.IdeResolveDependenciesTask
 import org.jetbrains.kotlin.gradle.plugin.ide.kotlinIdeMultiplatformImport
 import org.jetbrains.kotlin.gradle.plugin.ide.locateOrRegisterIdeResolveDependenciesTask
 import org.jetbrains.kotlin.gradle.plugin.mpp.KotlinMultiplatformPlugin.Companion.sourceSetFreeCompilerArgsPropertyName
+import org.jetbrains.kotlin.gradle.plugin.mpp.internal.checkAndReportDeprecatedNativeTargets
 import org.jetbrains.kotlin.gradle.plugin.mpp.internal.handleHierarchicalStructureFlagsMigration
 import org.jetbrains.kotlin.gradle.plugin.mpp.pm20.*
-import org.jetbrains.kotlin.gradle.plugin.mpp.pm20.registerDefaultVariantFactories
-import org.jetbrains.kotlin.gradle.plugin.mpp.pm20.setupFragmentsMetadataForKpmModules
-import org.jetbrains.kotlin.gradle.plugin.mpp.pm20.setupKpmModulesPublication
 import org.jetbrains.kotlin.gradle.plugin.mpp.pm20.util.copyAttributes
 import org.jetbrains.kotlin.gradle.plugin.sources.DefaultLanguageSettingsBuilder
 import org.jetbrains.kotlin.gradle.plugin.sources.checkSourceSetVisibilityRequirements
@@ -37,7 +34,6 @@ import org.jetbrains.kotlin.gradle.targets.js.ir.KotlinJsIrTargetPreset
 import org.jetbrains.kotlin.gradle.targets.js.ir.KotlinWasmTargetPreset
 import org.jetbrains.kotlin.gradle.targets.native.tasks.artifact.registerKotlinArtifactsExtension
 import org.jetbrains.kotlin.gradle.tasks.AbstractKotlinCompileTool
-import org.jetbrains.kotlin.gradle.tasks.locateOrRegisterTask
 import org.jetbrains.kotlin.gradle.tasks.locateTask
 import org.jetbrains.kotlin.gradle.tasks.registerTask
 import org.jetbrains.kotlin.gradle.utils.*
@@ -53,6 +49,7 @@ class KotlinMultiplatformPlugin : Plugin<Project> {
         checkGradleCompatibility("the Kotlin Multiplatform plugin", GradleVersion.version("6.0"))
 
         handleHierarchicalStructureFlagsMigration(project)
+        checkAndReportDeprecatedNativeTargets(project)
 
         project.plugins.apply(JavaBasePlugin::class.java)
 
diff --git a/libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/plugin/mpp/internal/deprecationDiagnostics.kt b/libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/plugin/mpp/internal/deprecationDiagnostics.kt
new file mode 100644
index 00000000000..1852881bd9a
--- /dev/null
+++ b/libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/plugin/mpp/internal/deprecationDiagnostics.kt
@@ -0,0 +1,25 @@
+/*
+ * Copyright 2010-2023 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.plugin.mpp.internal
+
+import org.gradle.api.Project
+import org.jetbrains.kotlin.gradle.dsl.KotlinMultiplatformExtension
+import org.jetbrains.kotlin.gradle.plugin.mpp.KotlinNativeTarget
+import org.jetbrains.kotlin.gradle.utils.SingleWarningPerBuild
+import org.jetbrains.kotlin.gradle.utils.runProjectConfigurationHealthCheckWhenEvaluated
+import org.jetbrains.kotlin.konan.target.KonanTarget
+
+internal fun checkAndReportDeprecatedNativeTargets(project: Project) {
+    project.runProjectConfigurationHealthCheckWhenEvaluated {
+        val targets = project.extensions.getByType(KotlinMultiplatformExtension::class.java).targets
+        val usedDeprecatedTargets = targets.filter { it is KotlinNativeTarget && it.konanTarget in KonanTarget.deprecatedTargets }
+        if (usedDeprecatedTargets.isEmpty()) return@runProjectConfigurationHealthCheckWhenEvaluated
+        SingleWarningPerBuild.show(
+            project,
+            "w: The following deprecated kotlin native targets were used in the project: ${usedDeprecatedTargets.joinToString { it.targetName }}"
+        )
+    }
+}
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