[gradle] Added a bunch of Gradle IT on K/N incremental compilation

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

@@ -0,0 +1,141 @@
+/*
+ * 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.native
+
+import org.gradle.util.GradleVersion
+import org.jetbrains.kotlin.gradle.dsl.NativeCacheKind
+import org.jetbrains.kotlin.gradle.testbase.*
+import org.jetbrains.kotlin.konan.target.HostManager
+import org.jetbrains.kotlin.konan.target.KonanTarget
+import org.junit.jupiter.api.DisplayName
+import java.nio.file.Path
+import kotlin.io.path.appendText
+import kotlin.io.path.writeText
+import kotlin.test.assertEquals
+import kotlin.test.assertNotEquals
+
+@DisplayName("Tests for K/N incremental compilation")
+@NativeGradlePluginTests
+class NativeIncrementalCompilationIT : KGPBaseTest() {
+
+    override val defaultBuildOptions = super.defaultBuildOptions.copy(
+        nativeOptions = BuildOptions.NativeOptions(
+            cacheKind = NativeCacheKind.STATIC,
+            incremental = true
+        )
+    )
+
+    @DisplayName("Smoke test")
+    @GradleTest
+    fun checkIncrementalCacheIsCreated(gradleVersion: GradleVersion) {
+        nativeProject("native-incremental-simple", gradleVersion) {
+            build("linkDebugExecutableHost") {
+                assertDirectoryExists(
+                    getFileCache("native-incremental-simple", "src/hostMain/kotlin/main.kt", "")
+                )
+            }
+        }
+    }
+
+    @DisplayName("IC works after compilation error (test 1)")
+    @GradleTest
+    fun compilationError1(gradleVersion: GradleVersion) {
+        nativeProject("native-incremental-multifile", gradleVersion) {
+            var mainKtCacheModified = 0L
+            var fooKtCacheModified = 0L
+            val mainKtCache = getFileCache("native-incremental-multifile", "src/hostMain/kotlin/main.kt", "")
+            val fooKtCache = getFileCache("native-incremental-multifile", "src/hostMain/kotlin/foo.kt", "")
+            build("linkDebugExecutableHost") {
+                assertDirectoryExists(mainKtCache)
+                assertDirectoryExists(fooKtCache)
+                mainKtCacheModified = mainKtCache.toFile().lastModified()
+                fooKtCacheModified = fooKtCache.toFile().lastModified()
+            }
+
+            val fooKt = kotlinSourcesDir("hostMain").resolve("foo.kt")
+            fooKt.writeText("fun foo(): Int = \"zzz\"")
+
+            buildAndFail("linkDebugExecutableHost") {
+                assertTasksFailed(":compileKotlinHost")
+            }
+
+            fooKt.writeText("fun foo(): Int = 42")
+
+            build("linkDebugExecutableHost") {
+                assertDirectoryExists(mainKtCache)
+                assertDirectoryExists(fooKtCache)
+                assertEquals(mainKtCacheModified, mainKtCache.toFile().lastModified())
+                assertEquals(fooKtCacheModified, fooKtCache.toFile().lastModified())
+            }
+        }
+    }
+
+    @DisplayName("IC works after compilation error (test 2)")
+    @GradleTest
+    fun compilationError2(gradleVersion: GradleVersion) {
+        nativeProject("native-incremental-multifile", gradleVersion) {
+            var mainKtCacheModified = 0L
+            var fooKtCacheModified = 0L
+            val mainKtCache = getFileCache("native-incremental-multifile", "src/hostMain/kotlin/main.kt", "")
+            val fooKtCache = getFileCache("native-incremental-multifile", "src/hostMain/kotlin/foo.kt", "")
+            build("linkDebugExecutableHost") {
+                assertDirectoryExists(mainKtCache)
+                assertDirectoryExists(fooKtCache)
+                mainKtCacheModified = mainKtCache.toFile().lastModified()
+                fooKtCacheModified = fooKtCache.toFile().lastModified()
+            }
+
+            val fooKt = kotlinSourcesDir("hostMain").resolve("foo.kt")
+            fooKt.writeText("fun foo(): Int = \"zzz\"")
+
+            buildAndFail("linkDebugExecutableHost") {
+                assertTasksFailed(":compileKotlinHost")
+            }
+
+            fooKt.writeText("fun foo(): String = \"zzz\"")
+
+            build("linkDebugExecutableHost") {
+                assertDirectoryExists(mainKtCache)
+                assertDirectoryExists(fooKtCache)
+                assertNotEquals(mainKtCacheModified, mainKtCache.toFile().lastModified())
+                assertNotEquals(fooKtCacheModified, fooKtCache.toFile().lastModified())
+            }
+        }
+    }
+
+    @DisplayName("Check dependencies on project level")
+    @GradleTest
+    fun inProjectDependencies(gradleVersion: GradleVersion) {
+        nativeProject("native-incremental-multi-project", gradleVersion, configureSubProjects = true) {
+            var fooKtCacheModified = 0L
+            var barKtCacheModified = 0L
+            var mainKtCacheModified = 0L
+            val fooKtCache = getFileCache("program", "MultiProject:library", "library/src/hostMain/kotlin/foo.kt", "")
+            val barKtCache = getFileCache("program", "MultiProject:program", "program/src/hostMain/kotlin/bar.kt", "")
+            val mainKtCache = getFileCache("program", "MultiProject:program", "program/src/hostMain/kotlin/main.kt", "")
+            build("linkDebugExecutableHost") {
+                assertDirectoryExists(fooKtCache)
+                assertDirectoryExists(barKtCache)
+                assertDirectoryExists(mainKtCache)
+                fooKtCacheModified = fooKtCache.toFile().lastModified()
+                barKtCacheModified = barKtCache.toFile().lastModified()
+                mainKtCacheModified = mainKtCache.toFile().lastModified()
+            }
+
+            val fooKt = projectPath.resolve("library/src/hostMain/kotlin").resolve("foo.kt")
+            fooKt.writeText("fun foo(): Int = 41")
+
+            build("linkDebugExecutableHost") {
+                assertDirectoryExists(fooKtCache)
+                assertDirectoryExists(barKtCache)
+                assertDirectoryExists(mainKtCache)
+                assertNotEquals(fooKtCacheModified, fooKtCache.toFile().lastModified())
+                assertEquals(barKtCacheModified, barKtCache.toFile().lastModified())
+                assertNotEquals(mainKtCacheModified, mainKtCache.toFile().lastModified())
+            }
+        }
+    }
+}

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

@@ -93,6 +93,7 @@ data class BuildOptions(
         val useXcodeMessageStyle: Boolean? = null,
         val version: String? = null,
         val cacheOrchestration: String? = null,
+        val incremental: Boolean? = null,
     )
 
     fun toArguments(
@@ -263,6 +264,9 @@ data class BuildOptions(
         nativeOptions.cacheOrchestration?.let {
             arguments.add("-Pkotlin.native.cacheOrchestration=${it}")
         }
+        nativeOptions.incremental?.let {
+            arguments.add("-Pkotlin.incremental.native=${it}")
+        }
 
     }
 }

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

@@ -5,9 +5,11 @@
 
 package org.jetbrains.kotlin.gradle.testbase
 
+import org.jetbrains.kotlin.gradle.dsl.NativeCacheKind
 import org.jetbrains.kotlin.konan.target.HostManager
 import org.jetbrains.kotlin.konan.target.KonanTarget
 import org.jetbrains.kotlin.konan.target.presetName
+import java.nio.file.Path
 import java.util.*
 
 val DEFAULT_CURRENT_PLATFORM_TARGET_NAME_POSTFIX = HostManager.host.presetName.lowercase(Locale.getDefault())
@@ -88,4 +90,33 @@ internal object MPPNativeTargets {
     }
 
     val supported = listOf("linux64", "macos64", "mingw64").filter { !unsupported.contains(it) }
-}
+}
+
+fun computeCacheDirName(
+    testTarget: KonanTarget,
+    cacheKind: String,
+    debuggable: Boolean,
+    partialLinkageEnabled: Boolean
+) = "$testTarget${if (debuggable) "-g" else ""}$cacheKind${if (partialLinkageEnabled) "-pl" else ""}"
+
+fun TestProject.getFileCache(fileProjectName: String, fileRelativePath: String, fqName: String) =
+    getFileCache("", fileProjectName, fileRelativePath, fqName)
+
+fun TestProject.getFileCache(
+    executableProjectName: String,
+    fileProjectName: String,
+    fileRelativePath: String,
+    fqName: String,
+): Path {
+    val cacheFlavor = computeCacheDirName(HostManager.host, NativeCacheKind.STATIC.name, true, true)
+    val libCacheDir = getICCacheDir(executableProjectName).resolve(cacheFlavor).resolve("$fileProjectName-per-file-cache")
+    val fileId = cacheFileId(fqName, projectPath.resolve(fileRelativePath).toFile().canonicalPath)
+    return libCacheDir.resolve(fileId)
+}
+
+private fun TestProject.getICCacheDir(projectName: String = "") =
+    (if (projectName == "") projectPath else projectPath.resolve(projectName))
+        .resolve("build/kotlin-native-ic-cache")
+
+private fun cacheFileId(fqName: String, filePath: String) =
+    "${if (fqName == "") "ROOT" else fqName}.${filePath.hashCode().toString(Character.MAX_RADIX)}"

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/native-incremental-multi-project/build.gradle.kts

@@ -0,0 +1,14 @@
+plugins {
+    id("org.jetbrains.kotlin.multiplatform")
+}
+
+allprojects {
+    repositories {
+        mavenCentral()
+        mavenLocal()
+    }
+}
+
+kotlin {
+    <SingleNativeTarget>("host")
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/native-incremental-multi-project/library/build.gradle.kts

@@ -0,0 +1,12 @@
+plugins {
+    id("org.jetbrains.kotlin.multiplatform")
+}
+
+repositories {
+    mavenLocal()
+    mavenCentral()
+}
+
+kotlin {
+    <SingleNativeTarget>("host")
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/native-incremental-multi-project/library/src/hostMain/kotlin/foo.kt

@@ -0,0 +1 @@
+fun foo(): Int = 42

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/native-incremental-multi-project/program/build.gradle.kts

@@ -0,0 +1,26 @@
+plugins {
+    id("org.jetbrains.kotlin.multiplatform")
+}
+
+repositories {
+    mavenLocal()
+    mavenCentral()
+}
+
+kotlin {
+    <SingleNativeTarget>("host") {
+        binaries {
+            executable {
+                entryPoint = "main"
+            }
+        }
+    }
+
+    sourceSets {
+        val commonMain by getting {
+            dependencies {
+                implementation(project(":library"))
+            }
+        }
+    }
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/native-incremental-multi-project/program/src/hostMain/kotlin/bar.kt

@@ -0,0 +1 @@
+fun bar(): Int = 117

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/native-incremental-multi-project/program/src/hostMain/kotlin/main.kt

@@ -0,0 +1,4 @@
+
+fun main() {
+    println(foo() + bar())
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/native-incremental-multi-project/settings.gradle.kts

@@ -0,0 +1,3 @@
+rootProject.name = "MultiProject"
+include(":library")
+include(":program")

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/native-incremental-multifile/build.gradle.kts

@@ -0,0 +1,18 @@
+plugins {
+    id("org.jetbrains.kotlin.multiplatform")
+}
+
+repositories {
+    mavenLocal()
+    mavenCentral()
+}
+
+kotlin {
+    <SingleNativeTarget>("host") {
+        binaries {
+            executable {
+                entryPoint = "main"
+            }
+        }
+    }
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/native-incremental-multifile/src/hostMain/kotlin/foo.kt

@@ -0,0 +1 @@
+fun foo(): Int = 42

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/native-incremental-multifile/src/hostMain/kotlin/main.kt

@@ -0,0 +1,4 @@
+
+fun main() {
+    println(foo())
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/native-incremental-simple/build.gradle.kts

@@ -0,0 +1,18 @@
+plugins {
+    id("org.jetbrains.kotlin.multiplatform")
+}
+
+repositories {
+    mavenLocal()
+    mavenCentral()
+}
+
+kotlin {
+    <SingleNativeTarget>("host") {
+        binaries {
+            executable {
+                entryPoint = "main"
+            }
+        }
+    }
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/native-incremental-simple/src/hostMain/kotlin/main.kt

@@ -0,0 +1,8 @@
+/*
+ * Copyright 2010-2022 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.
+ */
+
+fun main() {
+    println("Hello, Kotlin/Native!")
+}