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/**************************************************************************
**
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Installer Framework.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
**************************************************************************/
#include "copyfiletask.h"
#include "observer.h"
#include <QDir>
#include <QFileInfo>
#include <QTemporaryFile>
namespace QInstaller {
CopyFileTask::CopyFileTask(const FileTaskItem &item)
: AbstractFileTask(item)
{
}
CopyFileTask::CopyFileTask(const QString &source)
: AbstractFileTask(source)
{
}
CopyFileTask::CopyFileTask(const QString &source, const QString &target)
: AbstractFileTask(source, target)
{
}
void CopyFileTask::doTask(QFutureInterface<FileTaskResult> &fi)
{
fi.reportStarted();
fi.setExpectedResultCount(1);
if (taskItems().isEmpty()) {
fi.reportException(TaskException(tr("Invalid task item count.")));
fi.reportFinished(); return; // error
}
const FileTaskItem item = taskItems().first();
FileTaskObserver observer(QCryptographicHash::Sha1);
QFile source(item.source());
if (!source.open(QIODevice::ReadOnly)) {
fi.reportException(TaskException(tr("Cannot open file \"%1\" for reading: %2")
.arg(QDir::toNativeSeparators(source.fileName()), source.errorString())));
fi.reportFinished(); return; // error
}
observer.setBytesToTransfer(source.size());
QScopedPointer<QFile> file;
const QString target = item.target();
if (target.isEmpty()) {
QTemporaryFile *tmp = new QTemporaryFile;
tmp->setAutoRemove(false);
file.reset(tmp);
} else {
file.reset(new QFile(target));
}
if (!file->open(QIODevice::WriteOnly | QIODevice::Truncate)) {
fi.reportException(TaskException(tr("Cannot open file \"%1\" for writing: %2")
.arg(QDir::toNativeSeparators(file->fileName()), file->errorString())));
fi.reportFinished(); return; // error
}
QByteArray buffer(32768, Qt::Uninitialized);
while (!source.atEnd() && source.error() == QFile::NoError) {
if (fi.isCanceled())
break;
if (fi.isPaused())
fi.waitForResume();
const qint64 read = source.read(buffer.data(), buffer.size());
qint64 written = 0;
while (written < read) {
const qint64 toWrite = file->write(buffer.constData() + written, read - written);
if (toWrite < 0) {
fi.reportException(TaskException(tr("Writing to file \"%1\" failed: %2")
.arg(QDir::toNativeSeparators(file->fileName()), file->errorString())));
}
written += toWrite;
}
observer.addSample(read);
observer.timerEvent(nullptr);
observer.addBytesTransfered(read);
observer.addCheckSumData(buffer.data(), read);
fi.setProgressValueAndText(observer.progressValue(), observer.progressText());
}
fi.reportResult(FileTaskResult(file->fileName(), observer.checkSum(), item, false), 0);
fi.reportFinished();
}
} // namespace QInstaller
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