PV resizing and PE infos #4
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@ -47,7 +47,9 @@ lvm2_pv::lvm2_pv(qint64 firstsector, qint64 lastsector, qint64 sectorsused, cons
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void lvm2_pv::init()
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{
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m_Create = findExternal(QStringLiteral("lvm")) ? cmdSupportFileSystem : cmdSupportNone;
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m_Check = findExternal(QStringLiteral("lvm")) ? cmdSupportFileSystem : cmdSupportNone;
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m_Check = findExternal(QStringLiteral("lvm")) ? cmdSupportFileSystem : cmdSupportNone;
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m_Grow = findExternal(QStringLiteral("lvm")) ? cmdSupportFileSystem : cmdSupportNone;
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m_Shrink = findExternal(QStringLiteral("lvm")) ? cmdSupportFileSystem : cmdSupportNone;
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m_GetLabel = cmdSupportCore;
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m_UpdateUUID = findExternal(QStringLiteral("lvm")) ? cmdSupportFileSystem : cmdSupportNone;
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@ -69,8 +71,8 @@ bool lvm2_pv::supportToolFound() const
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m_Create != cmdSupportNone &&
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m_Check != cmdSupportNone &&
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m_UpdateUUID != cmdSupportNone &&
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// m_Grow != cmdSupportNone &&
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// m_Shrink != cmdSupportNone &&
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m_Grow != cmdSupportNone &&
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m_Shrink != cmdSupportNone &&
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// m_Copy != cmdSupportNone &&
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m_Move != cmdSupportNone &&
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m_Backup != cmdSupportNone &&
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@ -106,6 +108,15 @@ bool lvm2_pv::remove(Report& report, const QString& deviceNode) const
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return cmd.run(-1) && cmd.exitCode() == 0;
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}
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bool lvm2_pv::resize(Report& report, const QString& deviceNode, qint64 length) const
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{
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// TODO: check if the it is legal to resize
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const QString len = QString::number(length / 512) + QStringLiteral("s");
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ExternalCommand cmd(report, QStringLiteral("lvm"), { QStringLiteral("pvresize"), QStringLiteral("--yes"), QStringLiteral("--setphysicalvolumesize"), len, deviceNode });
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return cmd.run(-1) && cmd.exitCode() == 0;
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}
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bool lvm2_pv::updateUUID(Report& report, const QString& deviceNode) const
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{
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ExternalCommand cmd(report, QStringLiteral("lvm"), { QStringLiteral("pvchange"), QStringLiteral("--uuid"), deviceNode });
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@ -132,4 +143,65 @@ QString lvm2_pv::getVGName(const QString& deviceNode) //PV node
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return QString();
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}
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qint64 lvm2_pv::getTotalPE(const QString& deviceNode) const {
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ExternalCommand cmd( QStringLiteral("lvm"),
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{ QStringLiteral("pvdisplay"), QStringLiteral("--verbose"), deviceNode });
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if (cmd.run(-1) && cmd.exitCode() == 0) {
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QRegularExpression re(QStringLiteral("Total PE\\h+(\\d+)"));
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QRegularExpressionMatch totalPE = re.match(cmd.output());
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if (totalPE.hasMatch())
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return totalPE.captured(1).toLongLong();
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}
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return -1;
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}
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qint64 lvm2_pv::getFreePE(const QString& deviceNode) const {
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ExternalCommand cmd( QStringLiteral("lvm"),
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{ QStringLiteral("pvdisplay"), QStringLiteral("--verbose"), deviceNode });
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if (cmd.run(-1) && cmd.exitCode() == 0) {
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QRegularExpression re(QStringLiteral("Free PE\\h+(\\d+)"));
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QRegularExpressionMatch freePE = re.match(cmd.output());
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if (freePE.hasMatch())
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return freePE.captured(1).toLongLong();
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}
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return -1;
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}
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qint64 lvm2_pv::getAllocatedPE(const QString& deviceNode) const {
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ExternalCommand cmd( QStringLiteral("lvm"),
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{ QStringLiteral("pvdisplay"), QStringLiteral("--verbose"), deviceNode });
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if (cmd.run(-1) && cmd.exitCode() == 0) {
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QRegularExpression re(QStringLiteral("Allocated PE\\h+(\\d+)"));
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QRegularExpressionMatch allocatedPE = re.match(cmd.output());
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if (allocatedPE.hasMatch())
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return allocatedPE.captured(1).toLongLong();
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}
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return -1;
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}
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qint64 lvm2_pv::getPVSize(const QString& deviceNode) const {
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ExternalCommand cmd( QStringLiteral("lvm"),
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{ QStringLiteral("pvdisplay"), QStringLiteral("--verbose"), QStringLiteral("--units"), QStringLiteral("B"), deviceNode });
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if (cmd.run(-1) && cmd.exitCode() == 0) {
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QRegularExpression re(QStringLiteral("PV Size\\h+(\\d+)"));
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QRegularExpressionMatch PVSize = re.match(cmd.output());
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if (PVSize.hasMatch())
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return PVSize.captured(1).toLongLong();
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}
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return -1;
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}
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qint64 lvm2_pv::getPESize(const QString& deviceNode) const {
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ExternalCommand cmd( QStringLiteral("lvm"),
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{ QStringLiteral("pvdisplay"), QStringLiteral("--verbose"), QStringLiteral("--units"), QStringLiteral("B"), deviceNode });
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if (cmd.run(-1) && cmd.exitCode() == 0) {
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QRegularExpression re(QStringLiteral("PE Size\\h+(\\d+)"));
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QRegularExpressionMatch PESize = re.match(cmd.output());
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if (PESize.hasMatch())
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return PESize.captured(1).toLongLong();
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}
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return -1;
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}
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}
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@ -47,11 +47,12 @@ public:
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bool check(Report& report, const QString& deviceNode) const override;
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bool create(Report& report, const QString& deviceNode) const override;
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bool remove(Report& report, const QString& deviceNode) const override;
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// bool resize(Report& report, const QString& deviceNode, qint64 length) const override;
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bool resize(Report& report, const QString& deviceNode, qint64 length) const override;
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// bool writeLabel(Report& report, const QString& deviceNode, const QString& newLabel) override;
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bool updateUUID(Report& report, const QString& deviceNode) const override;
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bool canMount(const QString & deviceNode, const QString & mountPoint) const override;
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CommandSupportType supportGetUsed() const override {
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return m_GetUsed;
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}
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@ -93,6 +94,12 @@ public:
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SupportTool supportToolName() const override;
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bool supportToolFound() const override;
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qint64 getTotalPE(const QString& deviceNode) const;
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qint64 getFreePE(const QString& deviceNode) const;
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qint64 getAllocatedPE(const QString& deviceNode) const;
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qint64 getPESize(const QString& deviceNode) const; // return PE size in bytes
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qint64 getPVSize(const QString& deviceNode) const; // return PV size in bytes
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static QString getVGName(const QString& deviceNode);
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public:
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