Store Kotlin/Native version in properties

Previously the Kotlin/Native version was hardcoded in sources of the
Gradle plugin. Such an approach is inconvenient when we want to
build Kotlin with a custom K/N version but without changes in sources
(e.g. during CI daily runs).

This patch adds a project property `versions.kotlin-native` which can
be set during build to override Kotlin/Native version. Also this
patch gets rid of hardcoding this version in sources and stores it in
a properties file packed with the Gradle plugin in a jar.

libraries/tools/kotlin-gradle-plugin/build.gradle.kts

@@ -101,12 +101,15 @@ tasks {
     }
 
     named<ProcessResources>("processResources") {
-        val propertiesToExpand = mapOf("projectVersion" to project.version)
+        val propertiesToExpand = mapOf(
+            "projectVersion" to project.version,
+            "kotlinNativeVersion" to project.kotlinNativeVersion
+        )
         for ((name, value) in propertiesToExpand) {
             inputs.property(name, value)
         }
         filesMatching("project.properties") {
-            expand("projectVersion" to project.version)
+            expand(propertiesToExpand)
         }
     }
 

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

@@ -33,8 +33,7 @@ import org.jetbrains.kotlin.gradle.targets.js.KotlinJsPlugin
 import org.jetbrains.kotlin.gradle.tasks.KOTLIN_COMPILER_EMBEDDABLE
 import org.jetbrains.kotlin.gradle.tasks.KOTLIN_MODULE_GROUP
 import org.jetbrains.kotlin.gradle.utils.checkGradleCompatibility
-import java.io.FileNotFoundException
-import java.util.*
+import org.jetbrains.kotlin.gradle.utils.loadPropertyFromResources
 import javax.inject.Inject
 import kotlin.reflect.KClass
 
@@ -168,14 +167,7 @@ fun Project.getKotlinPluginVersion(): String? =
 
 fun Plugin<*>.loadKotlinVersionFromResource(log: Logger): String {
     log.kotlinDebug("Loading version information")
-    val props = Properties()
-    val propFileName = "project.properties"
-    val inputStream = javaClass.classLoader!!.getResourceAsStream(propFileName)
-        ?: throw FileNotFoundException("property file '$propFileName' not found in the classpath")
-
-    props.load(inputStream)
-
-    val projectVersion = props["project.version"] as String
+    val projectVersion = loadPropertyFromResources("project.properties", "project.version")
     log.kotlinDebug("Found project version [$projectVersion]")
     return projectVersion
 }

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/utils/NativeCompilerDownloader.kt

@@ -12,8 +12,8 @@ import org.gradle.api.file.FileTree
 import org.gradle.api.logging.Logger
 import org.jetbrains.kotlin.compilerRunner.KonanCompilerRunner
 import org.jetbrains.kotlin.compilerRunner.konanVersion
+import org.jetbrains.kotlin.gradle.logging.kotlinInfo
 import org.jetbrains.kotlin.konan.KonanVersion
-import org.jetbrains.kotlin.konan.KonanVersionImpl
 import org.jetbrains.kotlin.konan.MetaVersion
 import org.jetbrains.kotlin.konan.target.HostManager
 import org.jetbrains.kotlin.konan.util.DependencyDirectories
@@ -25,7 +25,9 @@ class NativeCompilerDownloader(
 ) {
 
     internal companion object {
-        val DEFAULT_KONAN_VERSION = KonanVersionImpl(MetaVersion.EAP, 1, 2, 0, 8879)
+        val DEFAULT_KONAN_VERSION: KonanVersion by lazy {
+            KonanVersion.fromString(loadPropertyFromResources("project.properties", "kotlin.native.version"))
+        }
         const val BASE_DOWNLOAD_URL = "https://download.jetbrains.com/kotlin/native/builds"
     }
 
@@ -92,8 +94,8 @@ class NativeCompilerDownloader(
         val configuration = project.configurations.detachedConfiguration(compilerDependency)
         val archive = configuration.files.single()
 
-        logger.info("Use Kotlin/Native compiler archive: ${archive.absolutePath}")
-        logger.lifecycle("Unpack Kotlin/Native compiler (version $versionString)...")
+        logger.kotlinInfo("Using Kotlin/Native compiler archive: ${archive.absolutePath}")
+        logger.lifecycle("Unpacking Kotlin/Native compiler (version $versionString)...")
         project.copy {
             it.from(archiveFileTree(archive))
             it.into(DependencyDirectories.localKonanDir)
@@ -110,4 +112,4 @@ class NativeCompilerDownloader(
             downloadAndExtract()
         }
     }
-}
+}

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/utils/resourceUtils.kt

@@ -0,0 +1,18 @@
+/*
+ * Copyright 2010-2019 JetBrains s.r.o. 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.utils
+
+import java.io.FileNotFoundException
+import java.util.*
+
+fun Any.loadPropertyFromResources(propFileName: String, property: String): String {
+    val props = Properties()
+    val inputStream = javaClass.classLoader!!.getResourceAsStream(propFileName)
+        ?: throw FileNotFoundException("property file '$propFileName' not found in the classpath")
+
+    inputStream.use { props.load(it) }
+    return props[property] as String
+}

libraries/tools/kotlin-gradle-plugin/src/main/resources/project.properties

@@ -1 +1,2 @@
-project.version=${projectVersion}
+project.version=${projectVersion}
+kotlin.native.version=${kotlinNativeVersion}