PrismLauncher/api/logic/minecraft/legacy/LegacyInstance.cpp
Petr Mrázek a1c713811c NOISSUE preserve minecraft.jar while migrating Legacy instances
It can be manually modded. It must be preserved when it's the only jar around.
2018-03-23 23:39:18 +01:00

343 lines
7.9 KiB
C++

/* Copyright 2013-2018 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 <QFileInfo>
#include <minecraft/launch/LauncherPartLaunch.h>
#include <QDir>
#include <settings/Setting.h>
#include "LegacyInstance.h"
#include "minecraft/legacy/LegacyModList.h"
#include "minecraft/ModList.h"
#include "minecraft/WorldList.h"
#include <MMCZip.h>
#include <FileSystem.h>
LegacyInstance::LegacyInstance(SettingsObjectPtr globalSettings, SettingsObjectPtr settings, const QString &rootDir)
: BaseInstance(globalSettings, settings, rootDir)
{
settings->registerSetting("NeedsRebuild", true);
settings->registerSetting("ShouldUpdate", false);
settings->registerSetting("JarVersion", QString());
settings->registerSetting("IntendedJarVersion", QString());
/*
* custom base jar has no default. it is determined in code... see the accessor methods for
*it
*
* for instances that DO NOT have the CustomBaseJar setting (legacy instances),
* [.]minecraft/bin/mcbackup.jar is the default base jar
*/
settings->registerSetting("UseCustomBaseJar", true);
settings->registerSetting("CustomBaseJar", "");
}
QString LegacyInstance::mainJarToPreserve() const
{
bool customJar = m_settings->get("UseCustomBaseJar").toBool();
if(customJar)
{
auto base = baseJar();
if(QFile::exists(base))
{
return base;
}
}
auto runnable = runnableJar();
if(QFile::exists(runnable))
{
return runnable;
}
return QString();
}
QString LegacyInstance::baseJar() const
{
bool customJar = m_settings->get("UseCustomBaseJar").toBool();
if (customJar)
{
return customBaseJar();
}
else
return defaultBaseJar();
}
QString LegacyInstance::customBaseJar() const
{
QString value = m_settings->get("CustomBaseJar").toString();
if (value.isNull() || value.isEmpty())
{
return defaultCustomBaseJar();
}
return value;
}
bool LegacyInstance::shouldUseCustomBaseJar() const
{
return m_settings->get("UseCustomBaseJar").toBool();
}
shared_qobject_ptr<Task> LegacyInstance::createUpdateTask(Net::Mode)
{
return nullptr;
}
/*
class LegacyJarModTask : public Task
{
//Q_OBJECT
public:
explicit LegacyJarModTask(std::shared_ptr<LegacyInstance> inst) : Task(nullptr), m_inst(inst)
{
}
virtual void executeTask()
{
if (!m_inst->shouldRebuild())
{
emitSucceeded();
return;
}
// Get the mod list
auto modList = m_inst->getJarMods();
QFileInfo runnableJar(m_inst->runnableJar());
QFileInfo baseJar(m_inst->baseJar());
bool base_is_custom = m_inst->shouldUseCustomBaseJar();
// Nothing to do if there are no jar mods to install, no backup and just the mc jar
if (base_is_custom)
{
// yes, this can happen if the instance only has the runnable jar and not the base jar
// it *could* be assumed that such an instance is vanilla, but that wouldn't be safe
// because that's not something mmc4 guarantees
if (runnableJar.isFile() && !baseJar.exists() && modList.empty())
{
m_inst->setShouldRebuild(false);
emitSucceeded();
return;
}
setStatus(tr("Installing mods: Backing up minecraft.jar ..."));
if (!baseJar.exists() && !QFile::copy(runnableJar.filePath(), baseJar.filePath()))
{
emitFailed("It seems both the active and base jar are gone. A fresh base jar will "
"be used on next run.");
m_inst->setShouldRebuild(true);
m_inst->setShouldUpdate(true);
m_inst->setShouldUseCustomBaseJar(false);
return;
}
}
if (!baseJar.exists())
{
emitFailed("The base jar " + baseJar.filePath() + " does not exist");
return;
}
if (runnableJar.exists() && !QFile::remove(runnableJar.filePath()))
{
emitFailed("Failed to delete old minecraft.jar");
return;
}
setStatus(tr("Installing mods: Opening minecraft.jar ..."));
QString outputJarPath = runnableJar.filePath();
QString inputJarPath = baseJar.filePath();
if(!MMCZip::createModdedJar(inputJarPath, outputJarPath, modList))
{
emitFailed(tr("Failed to create the custom Minecraft jar file."));
return;
}
m_inst->setShouldRebuild(false);
// inst->UpdateVersion(true);
emitSucceeded();
return;
}
std::shared_ptr<LegacyInstance> m_inst;
};
*/
std::shared_ptr<LegacyModList> LegacyInstance::jarModList() const
{
if (!jar_mod_list)
{
auto list = new LegacyModList(jarModsDir(), modListFile());
jar_mod_list.reset(list);
}
jar_mod_list->update();
return jar_mod_list;
}
QList<Mod> LegacyInstance::getJarMods() const
{
return jarModList()->allMods();
}
QString LegacyInstance::minecraftRoot() const
{
QFileInfo mcDir(FS::PathCombine(instanceRoot(), "minecraft"));
QFileInfo dotMCDir(FS::PathCombine(instanceRoot(), ".minecraft"));
if (mcDir.exists() && !dotMCDir.exists())
return mcDir.filePath();
else
return dotMCDir.filePath();
}
QString LegacyInstance::binRoot() const
{
return FS::PathCombine(minecraftRoot(), "bin");
}
QString LegacyInstance::jarModsDir() const
{
return FS::PathCombine(instanceRoot(), "instMods");
}
QString LegacyInstance::libDir() const
{
return FS::PathCombine(minecraftRoot(), "lib");
}
QString LegacyInstance::savesDir() const
{
return FS::PathCombine(minecraftRoot(), "saves");
}
QString LegacyInstance::loaderModsDir() const
{
return FS::PathCombine(minecraftRoot(), "mods");
}
QString LegacyInstance::coreModsDir() const
{
return FS::PathCombine(minecraftRoot(), "coremods");
}
QString LegacyInstance::resourceDir() const
{
return FS::PathCombine(minecraftRoot(), "resources");
}
QString LegacyInstance::texturePacksDir() const
{
return FS::PathCombine(minecraftRoot(), "texturepacks");
}
QString LegacyInstance::runnableJar() const
{
return FS::PathCombine(binRoot(), "minecraft.jar");
}
QString LegacyInstance::modListFile() const
{
return FS::PathCombine(instanceRoot(), "modlist");
}
QString LegacyInstance::instanceConfigFolder() const
{
return FS::PathCombine(minecraftRoot(), "config");
}
bool LegacyInstance::shouldRebuild() const
{
return m_settings->get("NeedsRebuild").toBool();
}
QString LegacyInstance::currentVersionId() const
{
return m_settings->get("JarVersion").toString();
}
QString LegacyInstance::intendedVersionId() const
{
return m_settings->get("IntendedJarVersion").toString();
}
bool LegacyInstance::shouldUpdate() const
{
QVariant var = settings()->get("ShouldUpdate");
if (!var.isValid() || var.toBool() == false)
{
return intendedVersionId() != currentVersionId();
}
return true;
}
QString LegacyInstance::defaultBaseJar() const
{
return "versions/" + intendedVersionId() + "/" + intendedVersionId() + ".jar";
}
QString LegacyInstance::defaultCustomBaseJar() const
{
return FS::PathCombine(binRoot(), "mcbackup.jar");
}
std::shared_ptr<WorldList> LegacyInstance::worldList() const
{
if (!m_world_list)
{
m_world_list.reset(new WorldList(savesDir()));
}
return m_world_list;
}
QString LegacyInstance::typeName() const
{
return tr("Legacy");
}
QString LegacyInstance::getStatusbarDescription()
{
return tr("Instance from previous versions.");
}
QStringList LegacyInstance::verboseDescription(AuthSessionPtr session)
{
QStringList out;
auto alltraits = traits();
if(alltraits.size())
{
out << "Traits:";
for (auto trait : alltraits)
{
out << " " + trait;
}
out << "";
}
QString windowParams;
if (settings()->get("LaunchMaximized").toBool())
{
out << "Window size: max (if available)";
}
else
{
auto width = settings()->get("MinecraftWinWidth").toInt();
auto height = settings()->get("MinecraftWinHeight").toInt();
out << "Window size: " + QString::number(width) + " x " + QString::number(height);
}
out << "";
return out;
}