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[welcome] Rename files before class-rename
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Adriaan de Groot
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381
src/modules/welcome/checker/GeneralRequirements.cpp
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381
src/modules/welcome/checker/GeneralRequirements.cpp
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/* === This file is part of Calamares - <https://github.com/calamares> ===
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*
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* Copyright 2014-2017, Teo Mrnjavac <teo@kde.org>
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* Copyright 2017-2018, Adriaan de Groot <groot@kde.org>
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* Copyright 2017, Gabriel Craciunescu <crazy@frugalware.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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#include "RequirementsChecker.h"
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#include "CheckerContainer.h"
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#include "partman_devices.h"
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#include "modulesystem/Requirement.h"
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#include "widgets/WaitingWidget.h"
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#include "utils/CalamaresUtilsGui.h"
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#include "utils/Logger.h"
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#include "utils/Retranslator.h"
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#include "utils/CalamaresUtilsSystem.h"
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#include "utils/Units.h"
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#include "JobQueue.h"
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#include "GlobalStorage.h"
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#include <QApplication>
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#include <QBoxLayout>
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#include <QDBusConnection>
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#include <QDBusInterface>
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#include <QDesktopWidget>
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#include <QDir>
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#include <QEventLoop>
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#include <QFile>
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#include <QFileInfo>
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#include <QLabel>
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#include <QNetworkAccessManager>
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#include <QNetworkRequest>
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#include <QNetworkReply>
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#include <QProcess>
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#include <QTimer>
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#include <unistd.h> //geteuid
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RequirementsChecker::RequirementsChecker( QObject* parent )
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: QObject( parent )
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, m_requiredStorageGB( -1 )
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, m_requiredRamGB( -1 )
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{
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}
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Calamares::RequirementsList RequirementsChecker::checkRequirements()
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{
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QSize availableSize = qApp->desktop()->availableGeometry().size();
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bool enoughStorage = false;
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bool enoughRam = false;
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bool hasPower = false;
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bool hasInternet = false;
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bool isRoot = false;
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bool enoughScreen = (availableSize.width() >= CalamaresUtils::windowMinimumWidth) && (availableSize.height() >= CalamaresUtils::windowMinimumHeight);
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qint64 requiredStorageB = CalamaresUtils::GiBtoBytes(m_requiredStorageGB);
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cDebug() << "Need at least storage bytes:" << requiredStorageB;
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if ( m_entriesToCheck.contains( "storage" ) )
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enoughStorage = checkEnoughStorage( requiredStorageB );
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qint64 requiredRamB = CalamaresUtils::GiBtoBytes(m_requiredRamGB);
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cDebug() << "Need at least ram bytes:" << requiredRamB;
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if ( m_entriesToCheck.contains( "ram" ) )
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enoughRam = checkEnoughRam( requiredRamB );
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if ( m_entriesToCheck.contains( "power" ) )
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hasPower = checkHasPower();
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if ( m_entriesToCheck.contains( "internet" ) )
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hasInternet = checkHasInternet();
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if ( m_entriesToCheck.contains( "root" ) )
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isRoot = checkIsRoot();
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using TR = Logger::DebugRow<const char *, bool>;
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cDebug() << "RequirementsChecker output:"
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<< TR("enoughStorage", enoughStorage)
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<< TR("enoughRam", enoughRam)
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<< TR("hasPower", hasPower)
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<< TR("hasInternet", hasInternet)
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<< TR("isRoot", isRoot);
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Calamares::RequirementsList checkEntries;
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foreach ( const QString& entry, m_entriesToCheck )
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{
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if ( entry == "storage" )
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checkEntries.append( {
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entry,
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[this]{ return tr( "has at least %1 GB available drive space" )
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.arg( m_requiredStorageGB ); },
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[this]{ return tr( "There is not enough drive space. At least %1 GB is required." )
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.arg( m_requiredStorageGB ); },
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enoughStorage,
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m_entriesToRequire.contains( entry )
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} );
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else if ( entry == "ram" )
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checkEntries.append( {
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entry,
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[this]{ return tr( "has at least %1 GB working memory" )
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.arg( m_requiredRamGB ); },
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[this]{ return tr( "The system does not have enough working memory. At least %1 GB is required." )
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.arg( m_requiredRamGB ); },
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enoughRam,
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m_entriesToRequire.contains( entry )
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} );
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else if ( entry == "power" )
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checkEntries.append( {
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entry,
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[this]{ return tr( "is plugged in to a power source" ); },
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[this]{ return tr( "The system is not plugged in to a power source." ); },
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hasPower,
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m_entriesToRequire.contains( entry )
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} );
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else if ( entry == "internet" )
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checkEntries.append( {
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entry,
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[this]{ return tr( "is connected to the Internet" ); },
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[this]{ return tr( "The system is not connected to the Internet." ); },
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hasInternet,
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m_entriesToRequire.contains( entry )
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} );
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else if ( entry == "root" )
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checkEntries.append( {
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entry,
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[this]{ return QString(); }, //we hide it
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[this]{ return tr( "The installer is not running with administrator rights." ); },
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isRoot,
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m_entriesToRequire.contains( entry )
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} );
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else if ( entry == "screen" )
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checkEntries.append( {
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entry,
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[this]{ return QString(); }, // we hide it
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[this]{ return tr( "The screen is too small to display the installer." ); },
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enoughScreen,
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false
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} );
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}
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return checkEntries;
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}
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void
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RequirementsChecker::setConfigurationMap( const QVariantMap& configurationMap )
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{
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bool incompleteConfiguration = false;
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if ( configurationMap.contains( "check" ) &&
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configurationMap.value( "check" ).type() == QVariant::List )
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{
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m_entriesToCheck.clear();
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m_entriesToCheck.append( configurationMap.value( "check" ).toStringList() );
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}
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else
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{
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cWarning() << "RequirementsChecker entry 'check' is incomplete.";
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incompleteConfiguration = true;
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}
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if ( configurationMap.contains( "required" ) &&
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configurationMap.value( "required" ).type() == QVariant::List )
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{
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m_entriesToRequire.clear();
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m_entriesToRequire.append( configurationMap.value( "required" ).toStringList() );
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}
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else
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{
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cWarning() << "RequirementsChecker entry 'required' is incomplete.";
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incompleteConfiguration = true;
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}
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// Help out with consistency, but don't fix
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for ( const auto& r : m_entriesToRequire )
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if ( !m_entriesToCheck.contains( r ) )
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cWarning() << "RequirementsChecker requires" << r << "but does not check it.";
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if ( configurationMap.contains( "requiredStorage" ) &&
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( configurationMap.value( "requiredStorage" ).type() == QVariant::Double ||
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configurationMap.value( "requiredStorage" ).type() == QVariant::Int ) )
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{
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bool ok = false;
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m_requiredStorageGB = configurationMap.value( "requiredStorage" ).toDouble( &ok );
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if ( !ok )
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{
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cWarning() << "RequirementsChecker entry 'requiredStorage' is invalid.";
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m_requiredStorageGB = 3.;
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}
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Calamares::JobQueue::instance()->globalStorage()->insert( "requiredStorageGB", m_requiredStorageGB );
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}
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else
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{
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cWarning() << "RequirementsChecker entry 'requiredStorage' is missing.";
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m_requiredStorageGB = 3.;
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incompleteConfiguration = true;
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}
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if ( configurationMap.contains( "requiredRam" ) &&
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( configurationMap.value( "requiredRam" ).type() == QVariant::Double ||
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configurationMap.value( "requiredRam" ).type() == QVariant::Int ) )
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{
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bool ok = false;
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m_requiredRamGB = configurationMap.value( "requiredRam" ).toDouble( &ok );
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if ( !ok )
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{
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cWarning() << "RequirementsChecker entry 'requiredRam' is invalid.";
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m_requiredRamGB = 1.;
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incompleteConfiguration = true;
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}
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}
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else
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{
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cWarning() << "RequirementsChecker entry 'requiredRam' is missing.";
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m_requiredRamGB = 1.;
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incompleteConfiguration = true;
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}
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if ( configurationMap.contains( "internetCheckUrl" ) &&
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configurationMap.value( "internetCheckUrl" ).type() == QVariant::String )
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{
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m_checkHasInternetUrl = configurationMap.value( "internetCheckUrl" ).toString().trimmed();
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if ( m_checkHasInternetUrl.isEmpty() ||
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!QUrl( m_checkHasInternetUrl ).isValid() )
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{
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cWarning() << "RequirementsChecker entry 'internetCheckUrl' is invalid in welcome.conf" << m_checkHasInternetUrl
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<< "reverting to default (http://example.com).";
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m_checkHasInternetUrl = "http://example.com";
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incompleteConfiguration = true;
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}
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}
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else
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{
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cWarning() << "RequirementsChecker entry 'internetCheckUrl' is undefined in welcome.conf,"
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"reverting to default (http://example.com).";
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m_checkHasInternetUrl = "http://example.com";
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incompleteConfiguration = true;
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}
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if ( incompleteConfiguration )
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{
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cWarning() << "RequirementsChecker configuration map:" << Logger::DebugMap( configurationMap );
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}
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}
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bool
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RequirementsChecker::checkEnoughStorage( qint64 requiredSpace )
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{
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#ifdef WITHOUT_LIBPARTED
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Q_UNUSED( requiredSpace );
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cWarning() << "RequirementsChecker is configured without libparted.";
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return false;
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#else
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return check_big_enough( requiredSpace );
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#endif
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}
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bool
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RequirementsChecker::checkEnoughRam( qint64 requiredRam )
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{
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// Ignore the guesstimate-factor; we get an under-estimate
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// which is probably the usable RAM for programs.
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quint64 availableRam = CalamaresUtils::System::instance()->getTotalMemoryB().first;
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return availableRam >= requiredRam * 0.95; // because MemTotal is variable
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}
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bool
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RequirementsChecker::checkBatteryExists()
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{
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const QFileInfo basePath( "/sys/class/power_supply" );
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if ( !( basePath.exists() && basePath.isDir() ) )
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return false;
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QDir baseDir( basePath.absoluteFilePath() );
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const auto entries = baseDir.entryList( QDir::AllDirs | QDir::Readable | QDir::NoDotAndDotDot );
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for ( const auto &item : entries )
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{
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QFileInfo typePath( baseDir.absoluteFilePath( QString( "%1/type" )
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.arg( item ) ) );
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QFile typeFile( typePath.absoluteFilePath() );
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if ( typeFile.open( QIODevice::ReadOnly | QIODevice::Text ) )
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{
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if ( typeFile.readAll().startsWith( "Battery" ) )
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return true;
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}
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}
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return false;
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}
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bool
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RequirementsChecker::checkHasPower()
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{
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const QString UPOWER_SVC_NAME( "org.freedesktop.UPower" );
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const QString UPOWER_INTF_NAME( "org.freedesktop.UPower" );
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const QString UPOWER_PATH( "/org/freedesktop/UPower" );
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if ( !checkBatteryExists() )
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return true;
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cDebug() << "A battery exists, checking for mains power.";
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QDBusInterface upowerIntf( UPOWER_SVC_NAME,
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UPOWER_PATH,
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UPOWER_INTF_NAME,
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QDBusConnection::systemBus() );
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bool onBattery = upowerIntf.property( "OnBattery" ).toBool();
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if ( !upowerIntf.isValid() )
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{
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// We can't talk to upower but we're obviously up and running
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// so I guess we got that going for us, which is nice...
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return true;
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}
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// If a battery exists but we're not using it, means we got mains
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// power.
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return !onBattery;
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}
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bool
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RequirementsChecker::checkHasInternet()
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{
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// default to true in the QNetworkAccessManager::UnknownAccessibility case
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QNetworkAccessManager qnam( this );
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bool hasInternet = qnam.networkAccessible() == QNetworkAccessManager::Accessible;
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if ( !hasInternet && qnam.networkAccessible() == QNetworkAccessManager::UnknownAccessibility )
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{
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QNetworkRequest req = QNetworkRequest( QUrl( m_checkHasInternetUrl ) );
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QNetworkReply* reply = qnam.get( req );
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QEventLoop loop;
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connect( reply, &QNetworkReply::finished,
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&loop, &QEventLoop::quit );
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loop.exec();
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if( reply->bytesAvailable() )
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hasInternet = true;
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}
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Calamares::JobQueue::instance()->globalStorage()->insert( "hasInternet", hasInternet );
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return hasInternet;
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}
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bool
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RequirementsChecker::checkIsRoot()
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{
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return !geteuid();
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}
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void
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RequirementsChecker::detectFirmwareType()
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{
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QString fwType = QFile::exists( "/sys/firmware/efi/efivars" ) ? "efi" : "bios";
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Calamares::JobQueue::instance()->globalStorage()->insert( "firmwareType", fwType );
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}
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