123 lines
3.4 KiB
C++
123 lines
3.4 KiB
C++
/* === This file is part of Calamares - <https://github.com/calamares> ===
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*
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* Copyright 2018, Adriaan de Groot <groot@kde.org>
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*
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* Calamares is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Calamares is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Calamares. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef RESIZEFSJOB_H
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#define RESIZEFSJOB_H
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#include <QObject>
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#include <QVariantMap>
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#include <CppJob.h>
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#include <utils/PluginFactory.h>
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#include <PluginDllMacro.h>
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class CoreBackend; // From KPMCore
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class Device; // From KPMCore
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class Partition;
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class PLUGINDLLEXPORT ResizeFSJob : public Calamares::CppJob
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{
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Q_OBJECT
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public:
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/** @brief Size expressions
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*
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* Sizes can be specified in MiB or percent (of the device they
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* are on). This class handles parsing of such strings from the
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* config file.
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*/
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class RelativeSize
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{
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public:
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RelativeSize();
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RelativeSize( const QString& );
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enum Unit
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{
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None,
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Percent,
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Absolute
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};
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int value() const { return m_value; }
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Unit unit() const { return m_unit; }
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bool isValid() const
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{
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return ( unit() != None ) && ( value() > 0 );
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}
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/** @brief Apply this size to the number of sectors @p totalSectors .
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*
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* Each sector has size @p sectorSize , for converting absolute
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* sizes in MiB to sector counts.
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*
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* For invalid sizes, returns -1.
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* For absolute sizes, returns the number of sectors needed.
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* For percent sizes, returns that percent of the number of sectors.
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*/
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qint64 apply( qint64 totalSectors, qint64 sectorSize );
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/** @brief Apply this size to the given device.
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*
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* Equivalent to apply( d->totalLogical(), d->logicalSize() )
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*/
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qint64 apply( Device* d );
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private:
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int m_value;
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Unit m_unit;
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} ;
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explicit ResizeFSJob( QObject* parent = nullptr );
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virtual ~ResizeFSJob() override;
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QString prettyName() const override;
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Calamares::JobResult exec() override;
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void setConfigurationMap( const QVariantMap& configurationMap ) override;
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/** @brief Is the configuration of this job valid? */
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bool isValid() const
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{
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return ( !m_fsname.isEmpty() || !m_devicename.isEmpty() ) &&
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m_size.isValid();
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}
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private:
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RelativeSize m_size;
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RelativeSize m_atleast;
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QString m_fsname; // Either this, or devicename, is set, not both
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QString m_devicename;
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bool m_required;
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using PartitionMatch = QPair<Device*, Partition*>;
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/** @brief Find the configured FS using KPMCore @p backend */
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PartitionMatch findPartition( CoreBackend* backend );
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/** @brief Return a new end-sector for the given dev-part pair. */
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qint64 findGrownEnd( PartitionMatch );
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};
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CALAMARES_PLUGIN_FACTORY_DECLARATION( ResizeFSJobFactory )
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#endif // RESIZEFSJOB_H
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