76 lines
2.8 KiB
C++
76 lines
2.8 KiB
C++
/*************************************************************************
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* Copyright (C) 2016 by Chantara Tith <tith.chantara@gmail.com> *
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* *
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* This program is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU General Public License as *
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* published by the Free Software Foundation; either version 3 of *
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* the License, or (at your option) any later version. *
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* *
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* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.*
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*************************************************************************/
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#include "ops/removevolumegroupoperation.h"
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#include "jobs/removevolumegroupjob.h"
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#include "core/partition.h"
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#include "core/partitiontable.h"
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#include "core/volumemanagerdevice.h"
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#include <QString>
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#include <KLocalizedString>
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/** Creates a new RemoveVolumeGroupOperation.
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*/
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RemoveVolumeGroupOperation::RemoveVolumeGroupOperation(VolumeManagerDevice& d) :
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Operation(),
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m_RemoveVolumeGroupJob(new RemoveVolumeGroupJob(d)),
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m_Device(d),
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m_PartitionTable(nullptr)
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{
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addJob(removeVolumeGroupJob());
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}
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QString RemoveVolumeGroupOperation::description() const
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{
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return xi18nc("@info/plain", "Remove a LVM volume group.");
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}
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void RemoveVolumeGroupOperation::preview()
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{
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m_PartitionTable = device().partitionTable();
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device().setPartitionTable(new PartitionTable(PartitionTable::vmd, 0, device().totalLogical() - 1));
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}
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void RemoveVolumeGroupOperation::undo()
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{
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device().setPartitionTable(m_PartitionTable);
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}
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/** Check if Volume Group can be safely removed
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*
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* @param dev VolumeManagerDevice with initialized partitions
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* @return true if there are no LVM partitions.
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*/
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bool RemoveVolumeGroupOperation::isRemovable(const VolumeManagerDevice* dev)
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{
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// TODO: allow removal when LVs are inactive.
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if (dev->type() == Device::LVM_Device) {
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if (dev->partitionTable()->children().count() == 0) // This is necessary to prevent a crash during applying of operations
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return true;
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else if (dev->partitionTable()->children().count() > 1)
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return false;
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else
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if (dev->partitionTable()->children().first()->fileSystem().type() == FileSystem::Type::Unknown)
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return true;
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}
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return false;
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}
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