pollymc/launcher/minecraft/mod/tasks/ModFolderLoadTask.cpp
flow c9eb584ac8
fix: prevent deletes by shared pointer accidental creation
This fixes the launcher crashing when opening the game :iea:

Signed-off-by: flow <flowlnlnln@gmail.com>
2022-09-16 20:12:30 -03:00

136 lines
4.5 KiB
C++

// SPDX-License-Identifier: GPL-3.0-only
/*
* PolyMC - Minecraft Launcher
* Copyright (c) 2022 flowln <flowlnlnln@gmail.com>
* 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/>.
*
* This file incorporates work covered by the following copyright and
* permission notice:
*
* Copyright 2013-2021 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 "ModFolderLoadTask.h"
#include "minecraft/mod/MetadataHandler.h"
#include <QThread>
ModFolderLoadTask::ModFolderLoadTask(QDir mods_dir, QDir index_dir, bool is_indexed, bool clean_orphan)
: Task(nullptr, false)
, m_mods_dir(mods_dir)
, m_index_dir(index_dir)
, m_is_indexed(is_indexed)
, m_clean_orphan(clean_orphan)
, m_result(new Result())
, m_thread_to_spawn_into(thread())
{}
void ModFolderLoadTask::executeTask()
{
if (thread() != m_thread_to_spawn_into)
connect(this, &Task::finished, this->thread(), &QThread::quit);
if (m_is_indexed) {
// Read metadata first
getFromMetadata();
}
// Read JAR files that don't have metadata
m_mods_dir.refresh();
for (auto entry : m_mods_dir.entryInfoList()) {
Mod* mod(new Mod(entry));
if (mod->enabled()) {
if (m_result->mods.contains(mod->internal_id())) {
m_result->mods[mod->internal_id()]->setStatus(ModStatus::Installed);
// Delete the object we just created, since a valid one is already in the mods list.
delete mod;
}
else {
m_result->mods[mod->internal_id()] = mod;
m_result->mods[mod->internal_id()]->setStatus(ModStatus::NoMetadata);
}
}
else {
QString chopped_id = mod->internal_id().chopped(9);
if (m_result->mods.contains(chopped_id)) {
m_result->mods[mod->internal_id()] = mod;
auto metadata = m_result->mods[chopped_id]->metadata();
if (metadata) {
mod->setMetadata(*metadata);
m_result->mods[mod->internal_id()]->setStatus(ModStatus::Installed);
m_result->mods.remove(chopped_id);
}
}
else {
m_result->mods[mod->internal_id()] = mod;
m_result->mods[mod->internal_id()]->setStatus(ModStatus::NoMetadata);
}
}
}
// Remove orphan metadata to prevent issues
// See https://github.com/PolyMC/PolyMC/issues/996
if (m_clean_orphan) {
QMutableMapIterator iter(m_result->mods);
while (iter.hasNext()) {
auto mod = iter.next().value();
if (mod->status() == ModStatus::NotInstalled) {
mod->destroy(m_index_dir, false);
iter.remove();
}
}
}
for (auto mod : m_result->mods)
mod->moveToThread(m_thread_to_spawn_into);
if (m_aborted)
emit finished();
else
emitSucceeded();
}
void ModFolderLoadTask::getFromMetadata()
{
m_index_dir.refresh();
for (auto entry : m_index_dir.entryList(QDir::Files)) {
auto metadata = Metadata::get(m_index_dir, entry);
if(!metadata.isValid()){
return;
}
auto* mod = new Mod(m_mods_dir, metadata);
mod->setStatus(ModStatus::NotInstalled);
m_result->mods[mod->internal_id()] = mod;
}
}