pollymc/api/logic/minecraft/onesix/OneSixUpdate.cpp
Petr Mrázek 2660418d58 NOISSUE hack it together enough to get launching back
Meta index will now always return valid objects.
They just might never load if they don't exist on the server.
2017-04-07 00:20:02 +02:00

161 lines
3.8 KiB
C++

/* Copyright 2013-2017 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 "Env.h"
#include <minecraft/forge/ForgeXzDownload.h>
#include "OneSixUpdate.h"
#include "OneSixInstance.h"
#include <QFile>
#include <QFileInfo>
#include <QTextStream>
#include <QDataStream>
#include "BaseInstance.h"
#include "minecraft/MinecraftProfile.h"
#include "minecraft/Library.h"
#include "net/URLConstants.h"
#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
{
/*
* 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());
}
// libraries download
{
m_tasks.append(std::make_shared<LibrariesTask>(m_inst));
}
// FML libraries download and copy into the instance
{
m_tasks.append(std::make_shared<FMLLibrariesTask>(m_inst));
}
// assets update
{
m_tasks.append(std::make_shared<AssetUpdateTask>(m_inst));
}
}
void OneSixUpdate::executeTask()
{
if(!m_preFailure.isEmpty())
{
emitFailed(m_preFailure);
return;
}
next();
}
void OneSixUpdate::next()
{
if(m_abort)
{
emitFailed(tr("Aborted by user."));
return;
}
m_currentTask ++;
if(m_currentTask > 0)
{
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);
}
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);
}
bool OneSixUpdate::abort()
{
if(!m_abort)
{
m_abort = true;
auto task = m_tasks[m_currentTask];
if(task->canAbort())
{
return task->abort();
}
}
return true;
}
bool OneSixUpdate::canAbort() const
{
return true;
}