sneedmc/launcher/ModDownloadTask.cpp

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// SPDX-License-Identifier: GPL-3.0-only
/*
* PolyMC - Minecraft Launcher
* Copyright (c) 2022 flowln <flowlnlnln@gmail.com>
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* Copyright (C) 2022 Sefa Eyeoglu <contact@scrumplex.net>
*
* 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, version 3.
*
* 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/>.
*/
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#include "ModDownloadTask.h"
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#include "Application.h"
#include "minecraft/mod/ModFolderModel.h"
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ModDownloadTask::ModDownloadTask(ModPlatform::IndexedPack mod, ModPlatform::IndexedVersion version, const std::shared_ptr<ModFolderModel> mods, bool is_indexed)
: m_mod(mod), m_mod_version(version), mods(mods)
{
if (is_indexed) {
m_update_task.reset(new LocalModUpdateTask(mods->indexDir(), m_mod, m_mod_version));
connect(m_update_task.get(), &LocalModUpdateTask::hasOldMod, this, &ModDownloadTask::hasOldMod);
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addTask(m_update_task);
}
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m_filesNetJob.reset(new NetJob(tr("Mod download"), APPLICATION->network()));
m_filesNetJob->setStatus(tr("Downloading mod:\n%1").arg(m_mod_version.downloadUrl));
m_filesNetJob->addNetAction(Net::Download::makeFile(m_mod_version.downloadUrl, mods->dir().absoluteFilePath(getFilename())));
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connect(m_filesNetJob.get(), &NetJob::succeeded, this, &ModDownloadTask::downloadSucceeded);
connect(m_filesNetJob.get(), &NetJob::progress, this, &ModDownloadTask::downloadProgressChanged);
connect(m_filesNetJob.get(), &NetJob::failed, this, &ModDownloadTask::downloadFailed);
addTask(m_filesNetJob);
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}
void ModDownloadTask::downloadSucceeded()
{
m_filesNetJob.reset();
auto name = std::get<0>(to_delete);
auto filename = std::get<1>(to_delete);
if (!name.isEmpty() && filename != m_mod_version.fileName) {
mods->uninstallMod(filename, true);
}
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}
void ModDownloadTask::downloadFailed(QString reason)
{
emitFailed(reason);
m_filesNetJob.reset();
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}
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void ModDownloadTask::downloadProgressChanged(qint64 current, qint64 total)
{
emit progress(current, total);
}
// This indirection is done so that we don't delete a mod before being sure it was
// downloaded successfully!
void ModDownloadTask::hasOldMod(QString name, QString filename)
{
to_delete = {name, filename};
}