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/**************************************************************************
**
** Copyright (C) 2022 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.
**
** $QT_END_LICENSE$
**
**************************************************************************/
#ifndef INSTALLERCALCULATOR_H
#define INSTALLERCALCULATOR_H
#include "installer_global.h"
#include "qinstallerglobal.h"
#include <QHash>
#include <QList>
#include <QSet>
#include <QString>
namespace QInstaller {
class Component;
class INSTALLER_EXPORT InstallerCalculator
{
public:
InstallerCalculator(PackageManagerCore *core, const AutoDependencyHash &autoDependencyComponentHash);
enum InstallReasonType
{
Selected, // "Selected Component(s) without Dependencies"
Automatic, // "Component(s) added as automatic dependencies"
Dependent, // "Added as dependency for %1."
Resolved // "Component(s) that have resolved Dependencies"
};
InstallReasonType installReasonType(const Component *c) const;
QString installReason(const Component *component) const;
QList<Component*> orderedComponentsToInstall() const;
QString componentsToInstallError() const;
bool appendComponentsToInstall(const QList<Component*> &components, bool modelReset = false, const bool revertFromInstall = false);
bool removeComponentsFromInstall(const QList<Component*> &components);
private:
QString installReasonReferencedComponent(const Component *component) const;
void insertInstallReason(const Component *component,
const InstallReasonType installReason,
const QString &referencedComponentName = QString(),
const bool revertFromInstall = false);
void realAppendToInstallComponents(Component *component, const QString &version, const bool revertFromInstall);
bool appendComponentToInstall(Component *component, const QString &version, const bool revertFromInstall);
QString recursionError(const Component *component) const;
QSet<Component *> autodependencyComponents(const bool revertFromInstall);
void calculateComponentDependencyReferences(const QString &dependencyComponentName, const Component *component);
private:
PackageManagerCore *m_core;
QHash<Component*, QSet<Component*> > m_visitedComponents;
QList<const Component*> m_componentsForAutodepencencyCheck;
//for faster lookups.
QSet<QString> m_toInstallComponentIds;
QHash<QString, QStringList> m_referenceCount;
QString m_componentsToInstallError;
//calculate installation order variables
QList<Component*> m_orderedComponentsToInstall;
//we can't use this reason hash as component id hash, because some reasons are ready before
//the component is added
QHash<QString, QPair<InstallReasonType, QString> > m_toInstallComponentIdReasonHash;
//Helper hash for quicker search for autodependency components
AutoDependencyHash m_autoDependencyComponentHash;
};
}
#endif // INSTALLERCALCULATOR_H
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