sneedmc/api/logic/minecraft/onesix/OneSixUpdate.cpp

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/* Copyright 2013-2017 MultiMC Contributors
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*
* 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
*
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* 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.
*/
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#include "Env.h"
#include <minecraft/forge/ForgeXzDownload.h>
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#include "OneSixUpdate.h"
#include "OneSixInstance.h"
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#include <QFile>
#include <QFileInfo>
#include <QTextStream>
#include <QDataStream>
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#include "BaseInstance.h"
#include "minecraft/MinecraftProfile.h"
#include "minecraft/Library.h"
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#include "net/URLConstants.h"
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#include <FileSystem.h>
#include "update/FoldersTask.h"
#include "update/LibrariesTask.h"
#include "update/FMLLibrariesTask.h"
#include "update/AssetUpdateTask.h"
#include <meta/Index.h>
#include <meta/Version.h>
OneSixUpdate::OneSixUpdate(OneSixInstance *inst, QObject *parent) : Task(parent), m_inst(inst)
{
// create folders
{
m_tasks.append(std::make_shared<FoldersTask>(m_inst));
}
// add a version update task, if necessary
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{
/*
* FIXME: there are some corner cases here that remain unhandled:
* what if local load succeeds but remote fails? The version is still usable...
*/
// FIXME: derive this from the actual list of version patches...
auto loadVersion = [&](const QString & uid, const QString & version)
{
auto obj = ENV.metadataIndex()->get(uid, version);
obj->load();
auto task = obj->getCurrentTask();
if(task)
{
m_tasks.append(task.unwrap());
}
};
loadVersion("org.lwjgl", "2.9.1");
loadVersion("net.minecraft", m_inst->intendedVersionId());
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}
// libraries download
{
m_tasks.append(std::make_shared<LibrariesTask>(m_inst));
}
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// FML libraries download and copy into the instance
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{
m_tasks.append(std::make_shared<FMLLibrariesTask>(m_inst));
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}
// assets update
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{
m_tasks.append(std::make_shared<AssetUpdateTask>(m_inst));
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}
}
void OneSixUpdate::executeTask()
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{
if(!m_preFailure.isEmpty())
{
emitFailed(m_preFailure);
return;
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}
next();
}
void OneSixUpdate::next()
{
if(m_abort)
{
emitFailed(tr("Aborted by user."));
return;
}
m_currentTask ++;
if(m_currentTask > 0)
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{
auto task = m_tasks[m_currentTask - 1];
disconnect(task.get(), &Task::succeeded, this, &OneSixUpdate::subtaskSucceeded);
disconnect(task.get(), &Task::failed, this, &OneSixUpdate::subtaskFailed);
disconnect(task.get(), &Task::progress, this, &OneSixUpdate::progress);
disconnect(task.get(), &Task::status, this, &OneSixUpdate::setStatus);
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}
if(m_currentTask == m_tasks.size())
{
emitSucceeded();
return;
}
auto task = m_tasks[m_currentTask];
// if the task is already finished by the time we look at it, skip it
if(task->isFinished())
{
next();
}
connect(task.get(), &Task::succeeded, this, &OneSixUpdate::subtaskSucceeded);
connect(task.get(), &Task::failed, this, &OneSixUpdate::subtaskFailed);
connect(task.get(), &Task::progress, this, &OneSixUpdate::progress);
connect(task.get(), &Task::status, this, &OneSixUpdate::setStatus);
// if the task is already running, do not start it again
if(!task->isRunning())
{
task->start();
}
}
void OneSixUpdate::subtaskSucceeded()
{
next();
}
void OneSixUpdate::subtaskFailed(QString error)
{
emitFailed(error);
}
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bool OneSixUpdate::abort()
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{
if(!m_abort)
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{
m_abort = true;
auto task = m_tasks[m_currentTask];
if(task->canAbort())
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{
return task->abort();
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}
}
return true;
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}
bool OneSixUpdate::canAbort() const
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{
return true;
}