From 1f2bed2ef119094bdc156aa3a206b93dea5081d1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Petr=20Mr=C3=A1zek?= <peterix@gmail.com>
Date: Thu, 16 Jun 2016 02:20:23 +0200
Subject: NOISSUE implement direct java launch

Just running the Java process and giving it params on the command line
---
 api/logic/minecraft/launch/DirectJavaLaunch.cpp | 149 ++++++++++++++++++++++++
 1 file changed, 149 insertions(+)
 create mode 100644 api/logic/minecraft/launch/DirectJavaLaunch.cpp

(limited to 'api/logic/minecraft/launch/DirectJavaLaunch.cpp')

diff --git a/api/logic/minecraft/launch/DirectJavaLaunch.cpp b/api/logic/minecraft/launch/DirectJavaLaunch.cpp
new file mode 100644
index 00000000..c46cdcd4
--- /dev/null
+++ b/api/logic/minecraft/launch/DirectJavaLaunch.cpp
@@ -0,0 +1,149 @@
+/* Copyright 2013-2015 MultiMC Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "DirectJavaLaunch.h"
+#include <launch/LaunchTask.h>
+#include <minecraft/MinecraftInstance.h>
+#include <FileSystem.h>
+#include <QStandardPaths>
+
+DirectJavaLaunch::DirectJavaLaunch(LaunchTask *parent) : LaunchStep(parent)
+{
+	connect(&m_process, &LoggedProcess::log, this, &DirectJavaLaunch::logLines);
+	connect(&m_process, &LoggedProcess::stateChanged, this, &DirectJavaLaunch::on_state);
+}
+
+void DirectJavaLaunch::executeTask()
+{
+	auto instance = m_parent->instance();
+	std::shared_ptr<MinecraftInstance> minecraftInstance = std::dynamic_pointer_cast<MinecraftInstance>(instance);
+	QStringList args = minecraftInstance->javaArguments();
+
+	// HACK: this is a workaround for MCL-3732 - 'server-resource-packs' is created.
+	if(!FS::ensureFolderPathExists(FS::PathCombine(minecraftInstance->minecraftRoot(), "server-resource-packs")))
+	{
+		emit logLine(tr("Couldn't create the 'server-resource-packs' folder"), MessageLevel::Error);
+	}
+
+	args.append("-Djava.library.path=" + minecraftInstance->getNativePath());
+
+	auto classPathEntries = minecraftInstance->getClassPath();
+	args.append("-cp");
+	QString classpath;
+#ifdef Q_OS_WIN32
+	classpath = classPathEntries.join(';');
+#else
+	classpath = classPathEntries.join(':');
+#endif
+	args.append(classpath);
+	args.append(minecraftInstance->getMainClass());
+
+	QString allArgs = args.join(", ");
+	emit logLine("Java Arguments:\n[" + m_parent->censorPrivateInfo(allArgs) + "]\n\n", MessageLevel::MultiMC);
+
+	auto javaPath = FS::ResolveExecutable(instance->settings()->get("JavaPath").toString());
+
+	m_process.setProcessEnvironment(instance->createEnvironment());
+
+	auto mcArgs = minecraftInstance->processMinecraftArgs(m_session);
+	args.append(mcArgs);
+
+	QString wrapperCommand = instance->getWrapperCommand();
+	if(!wrapperCommand.isEmpty())
+	{
+		auto realWrapperCommand = QStandardPaths::findExecutable(wrapperCommand);
+		if (realWrapperCommand.isEmpty())
+		{
+			QString reason = tr("The wrapper command \"%1\" couldn't be found.").arg(wrapperCommand);
+			emit logLine(reason, MessageLevel::Fatal);
+			emitFailed(reason);
+			return;
+		}
+		emit logLine("Wrapper command is:\n" + wrapperCommand + "\n\n", MessageLevel::MultiMC);
+		args.prepend(javaPath);
+		m_process.start(wrapperCommand, args);
+	}
+	else
+	{
+		m_process.start(javaPath, args);
+	}
+}
+
+void DirectJavaLaunch::on_state(LoggedProcess::State state)
+{
+	switch(state)
+	{
+		case LoggedProcess::FailedToStart:
+		{
+			//: Error message displayed if instace can't start
+			QString reason = tr("Could not launch minecraft!");
+			emit logLine(reason, MessageLevel::Fatal);
+			emitFailed(reason);
+			return;
+		}
+		case LoggedProcess::Aborted:
+		case LoggedProcess::Crashed:
+
+		{
+			m_parent->setPid(-1);
+			emitFailed("Game crashed.");
+			return;
+		}
+		case LoggedProcess::Finished:
+		{
+			m_parent->setPid(-1);
+			// if the exit code wasn't 0, report this as a crash
+			auto exitCode = m_process.exitCode();
+			if(exitCode != 0)
+			{
+				emitFailed("Game crashed.");
+				return;
+			}
+			//FIXME: make this work again
+			// m_postlaunchprocess.processEnvironment().insert("INST_EXITCODE", QString(exitCode));
+			// run post-exit
+			emitSucceeded();
+			break;
+		}
+		case LoggedProcess::Running:
+			emit logLine(tr("Minecraft process ID: %1\n\n").arg(m_process.processId()), MessageLevel::MultiMC);
+			m_parent->setPid(m_process.processId());
+			m_parent->instance()->setLastLaunch();
+			break;
+		default:
+			break;
+	}
+}
+
+void DirectJavaLaunch::setWorkingDirectory(const QString &wd)
+{
+	m_process.setWorkingDirectory(wd);
+}
+
+void DirectJavaLaunch::proceed()
+{
+	// nil
+}
+
+bool DirectJavaLaunch::abort()
+{
+	auto state = m_process.state();
+	if (state == LoggedProcess::Running || state == LoggedProcess::Starting)
+	{
+		m_process.kill();
+	}
+	return true;
+}
+
-- 
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