10 files changed, 17 insertions, 33 deletions
diff --git a/api/logic/BaseInstance.h b/api/logic/BaseInstance.h
index 147dd703..691a2db1 100644
--- a/api/logic/BaseInstance.h
+++ b/api/logic/BaseInstance.h
@@ -202,12 +202,6 @@ public:
 	 */
 	virtual QString getLogFileRoot() = 0;
 
-	/*!
-	 * does any necessary cleanups after the instance finishes. also runs before\
-	 * TODO: turn into a task that can run asynchronously
-	 */
-	virtual void cleanupAfterRun() = 0;
-
 	virtual QString getStatusbarDescription() = 0;
 
 	/// FIXME: this really should be elsewhere...
diff --git a/api/logic/NullInstance.h b/api/logic/NullInstance.h
index 5323d135..b530acd3 100644
--- a/api/logic/NullInstance.h
+++ b/api/logic/NullInstance.h
@@ -14,9 +14,6 @@ public:
 	{
 		return false;
 	}
-	virtual void cleanupAfterRun() override
-	{
-	}
 	virtual QString currentVersionId() const override
 	{
 		return "Null";
diff --git a/api/logic/launch/LaunchTask.cpp b/api/logic/launch/LaunchTask.cpp
index 8b9da398..ea4ed43e 100644
--- a/api/logic/launch/LaunchTask.cpp
+++ b/api/logic/launch/LaunchTask.cpp
@@ -225,14 +225,12 @@ void LaunchTask::onLogLine(QString line, MessageLevel::Enum level)
 
 void LaunchTask::emitSucceeded()
 {
-	m_instance->cleanupAfterRun();
 	m_instance->setRunning(false);
 	Task::emitSucceeded();
 }
 
 void LaunchTask::emitFailed(QString reason)
 {
-	m_instance->cleanupAfterRun();
 	m_instance->setRunning(false);
 	m_instance->setCrashed(true);
 	Task::emitFailed(reason);
diff --git a/api/logic/minecraft/MinecraftInstance.cpp b/api/logic/minecraft/MinecraftInstance.cpp
index f36e40ed..bcbabb1f 100644
--- a/api/logic/minecraft/MinecraftInstance.cpp
+++ b/api/logic/minecraft/MinecraftInstance.cpp
@@ -450,8 +450,6 @@ std::shared_ptr<LaunchTask> MinecraftInstance::createLaunchTask(AuthSessionPtr s
 	}
 
 	// extract native jars if needed
-	auto jars = getNativeJars();
-	if(jars.size())
 	{
 		auto step = std::make_shared<ExtractNatives>(pptr);
 		process->appendStep(step);
diff --git a/api/logic/minecraft/launch/ExtractNatives.cpp b/api/logic/minecraft/launch/ExtractNatives.cpp
index 089e2559..30b5197b 100644
--- a/api/logic/minecraft/launch/ExtractNatives.cpp
+++ b/api/logic/minecraft/launch/ExtractNatives.cpp
@@ -71,8 +71,13 @@ void ExtractNatives::executeTask()
 {
 	auto instance = m_parent->instance();
 	std::shared_ptr<MinecraftInstance> minecraftInstance = std::dynamic_pointer_cast<MinecraftInstance>(instance);
-	auto outputPath  = minecraftInstance->getNativePath();
 	auto toExtract = minecraftInstance->getNativeJars();
+	if(toExtract.isEmpty())
+	{
+		emitSucceeded();
+		return;
+	}
+	auto outputPath  = minecraftInstance->getNativePath();
 	auto javaVersion = minecraftInstance->getJavaVersion();
 	bool jniHackEnabled = javaVersion.major() >= 8;
 	for(const auto &source: toExtract)
@@ -84,3 +89,11 @@ void ExtractNatives::executeTask()
 	}
 	emitSucceeded();
 }
+
+void ExtractNatives::finalize()
+{
+	auto instance = m_parent->instance();
+	QString target_dir = FS::PathCombine(instance->instanceRoot(), "natives/");
+	QDir dir(target_dir);
+	dir.removeRecursively();
+}
diff --git a/api/logic/minecraft/launch/ExtractNatives.h b/api/logic/minecraft/launch/ExtractNatives.h
index 699657d7..0c5c831c 100644
--- a/api/logic/minecraft/launch/ExtractNatives.h
+++ b/api/logic/minecraft/launch/ExtractNatives.h
@@ -27,11 +27,12 @@ public:
 	explicit ExtractNatives(LaunchTask *parent) : LaunchStep(parent){};
 	virtual ~ExtractNatives(){};
 
-	virtual void executeTask();
-	virtual bool canAbort() const
+	void executeTask() override;
+	bool canAbort() const override
 	{
 		return false;
 	}
+	void finalize() override;
 };
 
 
diff --git a/api/logic/minecraft/legacy/LegacyInstance.cpp b/api/logic/minecraft/legacy/LegacyInstance.cpp
index 7ed2041c..f1132473 100644
--- a/api/logic/minecraft/legacy/LegacyInstance.cpp
+++ b/api/logic/minecraft/legacy/LegacyInstance.cpp
@@ -224,12 +224,6 @@ QStringList LegacyInstance::validLaunchMethods()
 	return {"Legacy"};
 }
 
-
-void LegacyInstance::cleanupAfterRun()
-{
-	// FIXME: delete the launcher and icons and whatnot.
-}
-
 std::shared_ptr<ModList> LegacyInstance::coreModList() const
 {
 	if (!core_mod_list)
diff --git a/api/logic/minecraft/legacy/LegacyInstance.h b/api/logic/minecraft/legacy/LegacyInstance.h
index 3db35fc9..2f30b0fd 100644
--- a/api/logic/minecraft/legacy/LegacyInstance.h
+++ b/api/logic/minecraft/legacy/LegacyInstance.h
@@ -117,8 +117,6 @@ public:
 	virtual std::shared_ptr<Task> createJarModdingTask() override;
 	virtual QString createLaunchScript(AuthSessionPtr session) override;
 
-	virtual void cleanupAfterRun() override;
-
 	virtual QString typeName() const override;
 
 	bool canExport() const override
diff --git a/api/logic/minecraft/onesix/OneSixInstance.cpp b/api/logic/minecraft/onesix/OneSixInstance.cpp
index 859e2e69..7a54bed1 100644
--- a/api/logic/minecraft/onesix/OneSixInstance.cpp
+++ b/api/logic/minecraft/onesix/OneSixInstance.cpp
@@ -425,13 +425,6 @@ std::shared_ptr<Task> OneSixInstance::createJarModdingTask()
 	return std::make_shared<JarModTask>(std::dynamic_pointer_cast<OneSixInstance>(shared_from_this()));
 }
 
-void OneSixInstance::cleanupAfterRun()
-{
-	QString target_dir = FS::PathCombine(instanceRoot(), "natives/");
-	QDir dir(target_dir);
-	dir.removeRecursively();
-}
-
 std::shared_ptr<ModList> OneSixInstance::loaderModList() const
 {
 	if (!m_loader_mod_list)
diff --git a/api/logic/minecraft/onesix/OneSixInstance.h b/api/logic/minecraft/onesix/OneSixInstance.h
index 170921ae..953281c2 100644
--- a/api/logic/minecraft/onesix/OneSixInstance.h
+++ b/api/logic/minecraft/onesix/OneSixInstance.h
@@ -57,8 +57,6 @@ public:
 	virtual QString createLaunchScript(AuthSessionPtr session) override;
 	QStringList verboseDescription(AuthSessionPtr session) override;
 
-	virtual void cleanupAfterRun() override;
-
 	virtual QString intendedVersionId() const override;
 	virtual bool setIntendedVersionId(QString version) override;