Support staring console-pure as a daemon

backend/mirai-console/src/main/kotlin/net/mamoe/mirai/console/internal/plugin/JvmPluginInternal.kt

@@ -54,7 +54,7 @@ internal abstract class JvmPluginInternal(
 
     final override val logger: MiraiLogger by lazy {
         MiraiConsole.newLogger(
-            this._description.name
+            "Plugin ${this._description.name}"
         )
     }
 
@@ -124,9 +124,16 @@ internal abstract class JvmPluginInternal(
 
     @JvmField
     internal val coroutineContextInitializer = {
-        CoroutineExceptionHandler { _, throwable -> logger.error(throwable) }
+        CoroutineExceptionHandler { _, throwable ->
+            if (throwable !is CancellationException) logger.error(throwable)
+        }
             .plus(parentCoroutineContext)
-            .plus(NamedSupervisorJob("Plugin $name", parentCoroutineContext[Job]))
+            .plus(
+                NamedSupervisorJob(
+                    "Plugin $name",
+                    parentCoroutineContext[Job] ?: JarPluginLoaderImpl.coroutineContext[Job]!!
+                )
+            )
             .also {
                 JarPluginLoaderImpl.coroutineContext[Job]!!.invokeOnCompletion {
                     this.cancel()
@@ -139,7 +146,7 @@ internal abstract class JvmPluginInternal(
         return coroutineContextInitializer().also { _coroutineContext = it }.also {
             job.invokeOnCompletion { e ->
                 if (e != null) {
-                    logger.error(e)
+                    if (e !is CancellationException) logger.error(e)
                     if (this.isEnabled) safeLoader.disable(this)
                 }
             }

frontend/mirai-console-pure/src/main/kotlin/net/mamoe/mirai/console/pure/MiraiConsoleImplementationPure.kt

@@ -38,6 +38,7 @@ import net.mamoe.mirai.console.plugin.DeferredPluginLoader
 import net.mamoe.mirai.console.plugin.PluginLoader
 import net.mamoe.mirai.console.plugin.jvm.JarPluginLoader
 import net.mamoe.mirai.console.pure.ConsoleInputImpl.requestInput
+import net.mamoe.mirai.console.util.ConsoleExperimentalAPI
 import net.mamoe.mirai.console.util.ConsoleInput
 import net.mamoe.mirai.console.util.ConsoleInternalAPI
 import net.mamoe.mirai.utils.*
@@ -60,7 +61,8 @@ import java.util.*
  *
  * @see MiraiConsolePureLoader CLI 入口点
  */
-internal class MiraiConsoleImplementationPure
+@ConsoleExperimentalAPI
+class MiraiConsoleImplementationPure
 @JvmOverloads constructor(
     override val rootPath: Path = Paths.get("."),
     override val builtInPluginLoaders: List<PluginLoader<*, *>> = Collections.unmodifiableList(

frontend/mirai-console-pure/src/main/kotlin/net/mamoe/mirai/console/pure/MiraiConsolePureLoader.kt

@@ -20,8 +20,12 @@
 
 package net.mamoe.mirai.console.pure
 
+import kotlinx.coroutines.CancellationException
+import kotlinx.coroutines.runBlocking
+import net.mamoe.mirai.console.MiraiConsole
 import net.mamoe.mirai.console.MiraiConsoleImplementation.Companion.start
 import net.mamoe.mirai.console.command.ConsoleCommandSender
+import net.mamoe.mirai.console.util.ConsoleExperimentalAPI
 import net.mamoe.mirai.console.util.ConsoleInternalAPI
 import net.mamoe.mirai.message.data.Message
 import net.mamoe.mirai.utils.DefaultLogger
@@ -33,11 +37,19 @@ import java.io.PrintStream
 object MiraiConsolePureLoader {
     @JvmStatic
     fun main(args: Array<String>) {
-        startup()
+        startAsDaemon()
+        try {
+            runBlocking {
+                MiraiConsole.job.join()
+            }
+        } catch (e: CancellationException) {
+            // ignored
+        }
     }
 
     @Suppress("MemberVisibilityCanBePrivate")
-    internal fun startup(instance: MiraiConsoleImplementationPure = MiraiConsoleImplementationPure()) {
+    @ConsoleExperimentalAPI
+    fun startAsDaemon(instance: MiraiConsoleImplementationPure = MiraiConsoleImplementationPure()) {
         instance.start()
         overrideSTD()
         startupConsoleThread()