[Daemon] Introduce the way to get Kotlin daemon compiler version

#KT-48294 In Progress

compiler/daemon/daemon-common-new/src/org/jetbrains/kotlin/daemon/common/experimental/CompileServiceClientSideImpl.kt

@@ -142,6 +142,11 @@ class CompileServiceClientSideImpl(
         return readMessage(id)
     }
 
+    override suspend fun getKotlinVersion(): CompileService.CallResult<String> {
+        val id = sendMessage(GetKotlinVersionMessage())
+        return readMessage(id)
+    }
+
     override suspend fun getDaemonJVMOptions(): CompileService.CallResult<DaemonJVMOptions> {
         val id = sendMessage(GetDaemonJVMOptionsMessage())
         val res = readMessage<CompileService.CallResult<DaemonJVMOptions>>(id)
@@ -258,6 +263,11 @@ class CompileServiceClientSideImpl(
             sendReply(server.getDaemonInfo())
     }
 
+    class GetKotlinVersionMessage : Server.Message<CompileServiceServerSide>() {
+        override suspend fun processImpl(server: CompileServiceServerSide, sendReply: (Any?) -> Unit) =
+            sendReply(server.getKotlinVersion())
+    }
+
     class RegisterClientMessage(val aliveFlagPath: String?) : Server.Message<CompileServiceServerSide>() {
         override suspend fun processImpl(server: CompileServiceServerSide, sendReply: (Any?) -> Unit) =
             sendReply(server.registerClient(aliveFlagPath))

compiler/daemon/daemon-common-new/src/org/jetbrains/kotlin/daemon/common/experimental/CompileServiceRMIWrapper.kt

@@ -44,6 +44,10 @@ class CompileServiceRMIWrapper(val server: CompileServiceServerSide, daemonOptio
         server.getDaemonInfo()
     }
 
+    override fun getKotlinVersion() = runBlocking {
+        server.getKotlinVersion()
+    }
+
     override fun getDaemonJVMOptions() = runBlocking {
         server.getDaemonJVMOptions()
     }

compiler/daemon/daemon-common/src/org/jetbrains/kotlin/daemon/common/CompileService.kt

@@ -80,6 +80,9 @@ interface CompileService : Remote {
     @Throws(RemoteException::class)
     fun getDaemonInfo(): CallResult<String>
 
+    @Throws(RemoteException::class)
+    fun getKotlinVersion(): CallResult<String>
+
     @Throws(RemoteException::class)
     fun getDaemonJVMOptions(): CallResult<DaemonJVMOptions>
 

compiler/daemon/daemon-common/src/org/jetbrains/kotlin/daemon/common/CompileServiceAsync.kt

@@ -20,6 +20,8 @@ interface CompileServiceAsync {
 
     suspend fun getDaemonInfo(): CompileService.CallResult<String>
 
+    suspend fun getKotlinVersion(): CompileService.CallResult<String>
+
     suspend fun getDaemonJVMOptions(): CompileService.CallResult<DaemonJVMOptions>
 
     suspend fun registerClient(aliveFlagPath: String?): CompileService.CallResult<Nothing>

compiler/daemon/daemon-common/src/org/jetbrains/kotlin/daemon/common/CompileServiceAsyncWrapper.kt

@@ -58,6 +58,8 @@ class CompileServiceAsyncWrapper(
     override suspend fun getDaemonInfo() =
         rmiCompileService.getDaemonInfo()
 
+    override suspend fun getKotlinVersion() =
+        rmiCompileService.getKotlinVersion()
 
     override suspend fun getDaemonJVMOptions() =
         rmiCompileService.getDaemonJVMOptions()

compiler/daemon/daemon-common/src/org/jetbrains/kotlin/daemon/common/CompileServiceRMIWrapper.kt

@@ -144,6 +144,9 @@ class CompileServiceClientRMIWrapper(
         asyncCompileService.getDaemonInfo()
     }
 
+    override fun getKotlinVersion() = runBlocking {
+        asyncCompileService.getKotlinVersion()
+    }
 
     override fun getDaemonJVMOptions() = runBlocking {
         asyncCompileService.getDaemonJVMOptions()

compiler/daemon/src/org/jetbrains/kotlin/daemon/CompileServiceImpl.kt

@@ -38,6 +38,7 @@ import org.jetbrains.kotlin.cli.jvm.compiler.KotlinCoreEnvironment
 import org.jetbrains.kotlin.cli.jvm.compiler.jarfs.FastJarFileSystem
 import org.jetbrains.kotlin.cli.jvm.compiler.jarfs.FastJarHandler
 import org.jetbrains.kotlin.cli.metadata.K2MetadataCompiler
+import org.jetbrains.kotlin.config.KotlinCompilerVersion
 import org.jetbrains.kotlin.config.Services
 import org.jetbrains.kotlin.daemon.common.*
 import org.jetbrains.kotlin.daemon.report.CompileServicesFacadeMessageCollector
@@ -663,6 +664,14 @@ class CompileServiceImpl(
         CompileService.CallResult.Good("Kotlin daemon on port $port")
     }
 
+    override fun getKotlinVersion(): CompileService.CallResult<String> = ifAlive {
+        try {
+            CompileService.CallResult.Good(KotlinCompilerVersion.VERSION)
+        } catch (e: Exception) {
+            CompileService.CallResult.Error("Unknown Kotlin version")
+        }
+    }
+
     override fun getDaemonOptions(): CompileService.CallResult<DaemonOptions> = ifAlive {
         CompileService.CallResult.Good(daemonOptions)
     }

compiler/daemon/src/org/jetbrains/kotlin/daemon/experimental/CompileServiceServerSideImpl.kt

@@ -25,6 +25,7 @@ import org.jetbrains.kotlin.cli.jvm.K2JVMCompiler
 import org.jetbrains.kotlin.cli.jvm.compiler.KotlinCoreEnvironment
 import org.jetbrains.kotlin.cli.jvm.compiler.jarfs.FastJarFileSystem
 import org.jetbrains.kotlin.cli.metadata.K2MetadataCompiler
+import org.jetbrains.kotlin.config.KotlinCompilerVersion
 import org.jetbrains.kotlin.config.Services
 import org.jetbrains.kotlin.daemon.CompileServiceImplBase
 import org.jetbrains.kotlin.daemon.CompilerSelector
@@ -230,6 +231,15 @@ class CompileServiceServerSideImpl(
             CompileService.CallResult.Good("Kotlin daemon on socketPort $port")
         }
 
+    override suspend fun getKotlinVersion(): CompileService.CallResult<String> =
+        ifAlive(minAliveness = Aliveness.Dying) {
+            try {
+                CompileService.CallResult.Good(KotlinCompilerVersion.VERSION)
+            } catch (e: Exception) {
+                CompileService.CallResult.Error("Unknown Kotlin version")
+            }
+        }
+
     override suspend fun getDaemonOptions(): CompileService.CallResult<DaemonOptions> = ifAlive {
         CompileService.CallResult.Good(daemonOptions)
     }