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// SPDX-License-Identifier: GPL-3.0-only
/*
* PolyMC - Minecraft Launcher
* 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 "LoggedProcess.h"
#include <QDebug>
#include <QTextDecoder>
#include "MessageLevel.h"
LoggedProcess::LoggedProcess(QObject *parent) : QProcess(parent)
{
// QProcess has a strange interface... let's map a lot of those into a few.
connect(this, &QProcess::readyReadStandardOutput, this, &LoggedProcess::on_stdOut);
connect(this, &QProcess::readyReadStandardError, this, &LoggedProcess::on_stdErr);
connect(this, SIGNAL(finished(int,QProcess::ExitStatus)), SLOT(on_exit(int,QProcess::ExitStatus)));
#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
connect(this, SIGNAL(errorOccurred(QProcess::ProcessError)), this, SLOT(on_error(QProcess::ProcessError)));
#else
connect(this, SIGNAL(error(QProcess::ProcessError)), this, SLOT(on_error(QProcess::ProcessError)));
#endif
connect(this, &QProcess::stateChanged, this, &LoggedProcess::on_stateChange);
}
LoggedProcess::~LoggedProcess()
{
if(m_is_detachable)
{
setProcessState(QProcess::NotRunning);
}
}
QStringList reprocess(const QByteArray& data, QTextDecoder& decoder)
{
auto str = decoder.toUnicode(data);
#if QT_VERSION < QT_VERSION_CHECK(5, 14, 0)
auto lines = str.remove(QChar::CarriageReturn).split(QChar::LineFeed, QString::SkipEmptyParts);
#else
auto lines = str.remove(QChar::CarriageReturn).split(QChar::LineFeed, Qt::SkipEmptyParts);
#endif
return lines;
}
void LoggedProcess::on_stdErr()
{
auto lines = reprocess(readAllStandardError(), m_err_decoder);
emit log(lines, MessageLevel::StdErr);
}
void LoggedProcess::on_stdOut()
{
auto lines = reprocess(readAllStandardOutput(), m_out_decoder);
emit log(lines, MessageLevel::StdOut);
}
void LoggedProcess::on_exit(int exit_code, QProcess::ExitStatus status)
{
// save the exit code
m_exit_code = exit_code;
// based on state, send signals
if (!m_is_aborting)
{
if (status == QProcess::NormalExit)
{
//: Message displayed on instance exit
emit log({tr("Process exited with code %1.").arg(exit_code)}, MessageLevel::Launcher);
changeState(LoggedProcess::Finished);
}
else
{
//: Message displayed on instance crashed
if(exit_code == -1)
emit log({tr("Process crashed.")}, MessageLevel::Launcher);
else
emit log({tr("Process crashed with exitcode %1.").arg(exit_code)}, MessageLevel::Launcher);
changeState(LoggedProcess::Crashed);
}
}
else
{
//: Message displayed after the instance exits due to kill request
emit log({tr("Process was killed by user.")}, MessageLevel::Error);
changeState(LoggedProcess::Aborted);
}
}
void LoggedProcess::on_error(QProcess::ProcessError error)
{
switch(error)
{
case QProcess::FailedToStart:
{
emit log({tr("The process failed to start.")}, MessageLevel::Fatal);
changeState(LoggedProcess::FailedToStart);
break;
}
// we'll just ignore those... never needed them
case QProcess::Crashed:
case QProcess::ReadError:
case QProcess::Timedout:
case QProcess::UnknownError:
case QProcess::WriteError:
break;
}
}
void LoggedProcess::kill()
{
m_is_aborting = true;
QProcess::kill();
}
int LoggedProcess::exitCode() const
{
return m_exit_code;
}
void LoggedProcess::changeState(LoggedProcess::State state)
{
if(state == m_state)
return;
m_state = state;
emit stateChanged(m_state);
}
LoggedProcess::State LoggedProcess::state() const
{
return m_state;
}
void LoggedProcess::on_stateChange(QProcess::ProcessState state)
{
switch(state)
{
case QProcess::NotRunning:
break; // let's not - there are too many that handle this already.
case QProcess::Starting:
{
if(m_state != LoggedProcess::NotRunning)
{
qWarning() << "Wrong state change for process from state" << m_state << "to" << (int) LoggedProcess::Starting;
}
changeState(LoggedProcess::Starting);
return;
}
case QProcess::Running:
{
if(m_state != LoggedProcess::Starting)
{
qWarning() << "Wrong state change for process from state" << m_state << "to" << (int) LoggedProcess::Running;
}
changeState(LoggedProcess::Running);
return;
}
}
}
void LoggedProcess::setDetachable(bool detachable)
{
m_is_detachable = detachable;
}
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