86 lines
2.6 KiB
C++
86 lines
2.6 KiB
C++
/*
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SPDX-FileCopyrightText: 2016 Chantara Tith <tith.chantara@gmail.com>
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SPDX-FileCopyrightText: 2016-2018 Andrius Štikonas <andrius@stikonas.eu>
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SPDX-FileCopyrightText: 2016 Teo Mrnjavac <teo@kde.org>
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SPDX-FileCopyrightText: 2018 Caio Jordão Carvalho <caiojcarvalho@gmail.com>
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SPDX-License-Identifier: GPL-3.0-or-later
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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/lvmdevice.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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if (device().type() == Device::Type::LVM_Device) {
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LvmDevice& lvm = static_cast<LvmDevice&>(device());
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LvmDevice::s_OrphanPVs << lvm.physicalVolumes();
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}
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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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if (device().type() == Device::Type::LVM_Device) {
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LvmDevice& lvm = static_cast<LvmDevice&>(device());
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const QVector<const Partition*> constOrphanList = LvmDevice::s_OrphanPVs;
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for (const Partition* p : constOrphanList)
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if (lvm.physicalVolumes().contains(p))
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LvmDevice::s_OrphanPVs.removeAll(p);
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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::Type::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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