kpmcore/src/core/devicescanner.cpp

96 lines
3.1 KiB
C++

/*************************************************************************
* Copyright (C) 2010 by Volker Lanz <vl@fidra.de> *
* Copyright (C) 2016 by Andrius Štikonas <andrius@stikonas.eu> *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of the GNU General Public License as *
* published by the Free Software Foundation; either version 3 of *
* the License, or (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program. If not, see <http://www.gnu.org/licenses/>.*
*************************************************************************/
#include "core/devicescanner.h"
#include "backend/corebackend.h"
#include "backend/corebackendmanager.h"
#include "core/operationstack.h"
#include "core/device.h"
#include "core/lvmdevice.h"
#include "core/diskdevice.h"
#include "util/externalcommand.h"
#include <QRegularExpression>
#include <QDebug>
/** Constructs a DeviceScanner
@param ostack the OperationStack where the devices will be created
*/
DeviceScanner::DeviceScanner(QObject* parent, OperationStack& ostack) :
QThread(parent),
m_OperationStack(ostack)
{
setupConnections();
}
void DeviceScanner::setupConnections()
{
connect(CoreBackendManager::self()->backend(), &CoreBackend::scanProgress, this, &DeviceScanner::progress);
}
void DeviceScanner::clear()
{
operationStack().clearOperations();
operationStack().clearDevices();
}
void DeviceScanner::run()
{
scan();
}
void DeviceScanner::scan()
{
emit progress(QString(), 0);
clear();
QList<Device*> deviceList = CoreBackendManager::self()->backend()->scanDevices();
QList<LvmDevice*> lvmList = scanLvmDevices();
foreach(Device * d, deviceList)
operationStack().addDevice(d);
foreach(Device * d, lvmList)
operationStack().addDevice(d);
operationStack().sortDevices();
}
/* Return list of VG (LvmDevice) on the system */
QList<LvmDevice*> DeviceScanner::scanLvmDevices() const
{
QList<LvmDevice*> lvmList;
ExternalCommand scanLvm(QStringLiteral("lvm"),
{ QStringLiteral("vgdisplay")});
if (scanLvm.run(-1) && scanLvm.exitCode() == 0) {
QRegularExpression re(QStringLiteral("VG Name\\h+(\\w+)"));
QRegularExpressionMatchIterator i = re.globalMatch(scanLvm.output());
while(i.hasNext()) {
QRegularExpressionMatch vgName = i.next();
LvmDevice* temp = new LvmDevice(vgName.captured(1));
lvmList.append(temp);
}
}
return lvmList;
}