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-rw-r--r--api/logic/minecraft/MinecraftUpdate.cpp203
1 files changed, 203 insertions, 0 deletions
diff --git a/api/logic/minecraft/MinecraftUpdate.cpp b/api/logic/minecraft/MinecraftUpdate.cpp
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+++ b/api/logic/minecraft/MinecraftUpdate.cpp
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+/* 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 "MinecraftUpdate.h"
+#include "MinecraftInstance.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(MinecraftInstance *inst, QObject *parent) : Task(parent), m_inst(inst)
+{
+ // create folders
+ {
+ m_tasks.append(std::make_shared<FoldersTask>(m_inst));
+ }
+
+ // add metadata update tasks, 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...
+ * We should not rely on the remote to be there... and prefer local files if it does not respond.
+ */
+ qDebug() << "Updating patches...";
+ auto profile = m_inst->getMinecraftProfile();
+ m_inst->reloadProfile();
+ for(int i = 0; i < profile->rowCount(); i++)
+ {
+ auto patch = profile->versionPatch(i);
+ auto id = patch->getID();
+ auto metadata = patch->getMeta();
+ if(metadata)
+ {
+ metadata->load();
+ auto task = metadata->getCurrentTask();
+ if(task)
+ {
+ qDebug() << "Loading remote meta patch" << id;
+ m_tasks.append(task.unwrap());
+ }
+ }
+ else
+ {
+ qDebug() << "Ignoring local patch" << id;
+ }
+ }
+ }
+
+ // 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;
+ }
+ if(m_failed_out_of_order)
+ {
+ emitFailed(m_fail_reason);
+ 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())
+ {
+ qCritical() << "OneSixUpdate: Skipping finished subtask" << m_currentTask << ":" << task.get();
+ 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()
+{
+ if(isFinished())
+ {
+ qCritical() << "OneSixUpdate: Subtask" << sender() << "succeeded, but work was already done!";
+ return;
+ }
+ auto senderTask = QObject::sender();
+ auto currentTask = m_tasks[m_currentTask].get();
+ if(senderTask != currentTask)
+ {
+ qDebug() << "OneSixUpdate: Subtask" << sender() << "succeeded out of order.";
+ return;
+ }
+ next();
+}
+
+void OneSixUpdate::subtaskFailed(QString error)
+{
+ if(isFinished())
+ {
+ qCritical() << "OneSixUpdate: Subtask" << sender() << "failed, but work was already done!";
+ return;
+ }
+ auto senderTask = QObject::sender();
+ auto currentTask = m_tasks[m_currentTask].get();
+ if(senderTask != currentTask)
+ {
+ qDebug() << "OneSixUpdate: Subtask" << sender() << "failed out of order.";
+ m_failed_out_of_order = true;
+ m_fail_reason = error;
+ return;
+ }
+ 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;
+}