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/**************************************************************************
**
** Copyright (C) 2021 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 "directoryguard.h"
#include "globals.h"
#include "errors.h"
#include <QCoreApplication>
#include <QDir>
namespace QInstaller {
/*!
\inmodule QtInstallerFramework
\class QInstaller::DirectoryGuard
\brief RAII class to create a directory and delete it on destruction unless released.
*/
/*!
Constructs a new guard object for \a path.
*/
DirectoryGuard::DirectoryGuard(const QString &path)
: m_path(path)
, m_created(false)
, m_released(false)
{
m_path.replace(QLatin1Char('\\'), QLatin1Char('/'));
}
/*!
Destroys the directory guard instance and removes the
guarded directory unless released.
*/
DirectoryGuard::~DirectoryGuard()
{
if (!m_created || m_released)
return;
QDir dir(m_path);
if (!dir.rmdir(m_path))
qCWarning(lcInstallerInstallLog) << "Cannot delete directory" << m_path;
}
/*!
Tries to create the directory structure.
Returns a list of every directory created.
*/
QStringList DirectoryGuard::tryCreate()
{
if (m_path.isEmpty())
return QStringList();
const QFileInfo fi(m_path);
if (fi.exists() && fi.isDir())
return QStringList();
if (fi.exists() && !fi.isDir()) {
throw Error(QCoreApplication::translate("DirectoryGuard",
"Path \"%1\" exists but is not a directory.").arg(QDir::toNativeSeparators(m_path)));
}
QStringList created;
QDir toCreate(m_path);
while (!toCreate.exists()) {
QString p = toCreate.absolutePath();
created.push_front(p);
p = p.section(QLatin1Char('/'), 0, -2);
toCreate = QDir(p);
}
QDir dir(m_path);
m_created = dir.mkpath(m_path);
if (!m_created) {
throw Error(QCoreApplication::translate("DirectoryGuard",
"Cannot create directory \"%1\".").arg(QDir::toNativeSeparators(m_path)));
}
return created;
}
/*!
Marks the directory as released.
*/
void DirectoryGuard::release()
{
m_released = true;
}
} // namespace QInstaller
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