KotlinToolingMetadata: Add schemaVersion property

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

@@ -77,6 +77,7 @@ open class BuildKotlinToolingMetadataTask : DefaultTask() {
 
 private fun KotlinProjectExtension.getKotlinToolingMetadata(): KotlinToolingMetadata {
     return KotlinToolingMetadata(
+        schemaVersion = KotlinToolingMetadata.currentSchemaVersion,
         buildSystem = "Gradle",
         buildSystemVersion = project.gradle.gradleVersion,
         buildPlugin = project.plugins.withType(KotlinBasePluginWrapper::class.java).joinToString(";") { it.javaClass.canonicalName },

libraries/tools/kotlin-tooling-metadata/src/main/kotlin/org/jetbrains/kotlin/tooling/JsonConversion.kt

@@ -16,6 +16,7 @@ fun KotlinToolingMetadata.toJsonString(): String {
 
 internal fun KotlinToolingMetadata.toJsonObject(): JsonObject {
     return JsonObject().apply {
+        addProperty("schemaVersion", schemaVersion)
         addProperty("buildSystem", buildSystem)
         addProperty("buildSystemVersion", buildSystemVersion)
         addProperty("buildPlugin", buildPlugin)
@@ -118,6 +119,7 @@ fun KotlinToolingMetadata.Companion.parseJsonOrThrow(value: String): KotlinTooli
 
 private fun JsonObject.toKotlinToolingMetadataOrThrow(): KotlinToolingMetadata {
     return KotlinToolingMetadata(
+        schemaVersion = getOrThrow("schemaVersion").asString,
         buildSystem = getOrThrow("buildSystem").asString,
         buildSystemVersion = getOrThrow("buildSystemVersion").asString,
         buildPlugin = getOrThrow("buildPlugin").asString,

libraries/tools/kotlin-tooling-metadata/src/main/kotlin/org/jetbrains/kotlin/tooling/KotlinToolingMetadata.kt

@@ -7,6 +7,7 @@ package org.jetbrains.kotlin.tooling
 
 
 data class KotlinToolingMetadata(
+    val schemaVersion: String,
     /**
      * Build System used (e.g. Gradle, Maven, ...)
      */
@@ -66,7 +67,9 @@ data class KotlinToolingMetadata(
         )
     }
 
-    companion object
+    companion object {
+        const val currentSchemaVersion: String = "1.0.0"
+    }
 }
 
 

libraries/tools/kotlin-tooling-metadata/src/test/kotlin/org/jetbrains/kotlin/tooling/DeserializeStringTest.kt

@@ -21,9 +21,10 @@ import kotlin.test.assertNull
 class DeserializeStringTest {
 
     @Test
-    fun sample1() {
+    fun `schemaVersion 1 0 0`() {
         @Language("JSON") val json = """
         {
+            "schemaVersion": "1.0.0",
             "buildSystem": "Gradle",
             "buildSystemVersion": "6.7",
             "buildPlugin": "org.jetbrains.kotlin.gradle.plugin.KotlinMultiplatformPluginWrapper",
@@ -83,6 +84,7 @@ class DeserializeStringTest {
             """.trimIndent()
 
         val metadata = KotlinToolingMetadata.parseJsonOrThrow(json)
+        assertEquals("1.0.0", metadata.schemaVersion)
         assertEquals("Gradle", metadata.buildSystem)
         assertEquals("6.7", metadata.buildSystemVersion)
         assertEquals("org.jetbrains.kotlin.gradle.plugin.KotlinMultiplatformPluginWrapper", metadata.buildPlugin)

libraries/tools/kotlin-tooling-metadata/src/test/kotlin/org/jetbrains/kotlin/tooling/SerializeAndDeserializeTest.kt

@@ -84,6 +84,7 @@ private fun assertDeserializedMatchesOrigin(origin: KotlinToolingMetadata) {
 
 private fun defaultKotlinToolingMetadata(): KotlinToolingMetadata {
     return KotlinToolingMetadata(
+        schemaVersion = KotlinToolingMetadata.currentSchemaVersion,
         buildSystem = "generic build system",
         buildSystemVersion = "v1.0 (build system)",
         buildPlugin = "generic build plugin",