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/* SPDX-FileCopyrightText: 2026 Project Tick
* SPDX-FileContributor: Project Tick
* SPDX-License-Identifier: GPL-3.0-or-later
*
* MeshMC - A Custom Launcher for Minecraft
* Copyright (C) 2026 Project Tick
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
* This file incorporates work covered by the following copyright and
* permission notice:
*
* Copyright 2013-2021 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 "ModMinecraftJar.h"
#include "launch/LaunchTask.h"
#include "MMCZip.h"
#include "minecraft/OpSys.h"
#include "FileSystem.h"
#include "minecraft/MinecraftInstance.h"
#include "minecraft/PackProfile.h"
void ModMinecraftJar::executeTask()
{
auto m_inst =
std::dynamic_pointer_cast<MinecraftInstance>(m_parent->instance());
if (!m_inst->getJarMods().size()) {
emitSucceeded();
return;
}
// nuke obsolete stripped jar(s) if needed
if (!FS::ensureFolderPathExists(m_inst->binRoot())) {
emitFailed(tr("Couldn't create the bin folder for Minecraft.jar"));
}
auto finalJarPath =
QDir(m_inst->binRoot()).absoluteFilePath("minecraft.jar");
if (!removeJar()) {
emitFailed(tr("Couldn't remove stale jar file: %1").arg(finalJarPath));
}
// create temporary modded jar, if needed
auto components = m_inst->getPackProfile();
auto profile = components->getProfile();
auto jarMods = m_inst->getJarMods();
if (jarMods.size()) {
auto mainJar = profile->getMainJar();
QStringList jars, temp1, temp2, temp3, temp4;
mainJar->getApplicableFiles(currentSystem, jars, temp1, temp2, temp3,
m_inst->getLocalLibraryPath());
auto sourceJarPath = jars[0];
if (!MMCZip::createModdedJar(sourceJarPath, finalJarPath, jarMods)) {
emitFailed(tr("Failed to create the custom Minecraft jar file."));
return;
}
}
emitSucceeded();
}
void ModMinecraftJar::finalize()
{
removeJar();
}
bool ModMinecraftJar::removeJar()
{
auto m_inst =
std::dynamic_pointer_cast<MinecraftInstance>(m_parent->instance());
auto finalJarPath =
QDir(m_inst->binRoot()).absoluteFilePath("minecraft.jar");
QFile finalJar(finalJarPath);
if (finalJar.exists()) {
if (!finalJar.remove()) {
return false;
}
}
return true;
}
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