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Reimplement ClearMountsJob without relying on PCM state.

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This commit is contained in:
Teo Mrnjavac 2015-02-13 14:02:42 +01:00
parent 1eff260637
commit 8b753bd65f
1 changed files with 32 additions and 26 deletions
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58
src/modules/partition/jobs/ClearMountsJob.cpp
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@ -1,6 +1,6 @@
/* === This file is part of Calamares - <http://github.com/calamares> ===
*
* Copyright 2014, Teo Mrnjavac <teo@kde.org>
* Copyright 2014-2015, Teo Mrnjavac <teo@kde.org>
*
* Calamares is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@ -25,6 +25,7 @@
#include <util/report.h>
#include <utils/Logger.h>
#include <QProcess>
#include <QStringList>
@ -48,33 +49,38 @@ ClearMountsJob::exec()
{
cDebug() << "Executing ClearMounts job for device" << m_device->deviceNode();
QStringList goodNews;
for ( auto it = PartitionIterator::begin( m_device );
it != PartitionIterator::end( m_device ); ++it )
QProcess process;
process.setProgram( "sh" );
process.setArguments( {
"-c",
QString( "echo $(awk '{print $4}' /proc/partitions | sed -e '/name/d' -e '/^$/d' -e '/[1-9]/!d' | grep %1)" )
.arg( m_device->deviceNode().split( '/' ).last() )
} );
process.start();
process.waitForFinished();
QString partitions = process.readAllStandardOutput();
QStringList partitionsList = partitions.simplified().split( ' ' );
cDebug() << "Raw:" << partitions;
cDebug() << "List:" << partitionsList.join( ", " );
foreach ( QString p, partitionsList )
{
cDebug() << "Now examining device" << (*it)->partitionPath();
if ( (*it)->isMounted() )
{
cDebug() << "\tIt's mounted!";
if ( (*it)->canUnmount() )
{
cDebug() << "\tTrying to umount...";
Report report( 0, QString() );
(*it)->unmount( report );
goodNews.append( report.toText() );
cDebug() << "\tUmounted" << (*it)->partitionPath();
}
else
{
cDebug() << "\tCannot umount. This is very bad.";
return Calamares::JobResult::error( tr( "Cannot umount partition %1" )
.arg( (*it)->deviceNode() ),
tr( "Cannot proceed with partitioning operations "
"because some partitions are still mounted." ) );
}
}
else
cDebug() << "\tIt's not mounted.";
QString partPath = QString( "/dev/%1" ).arg( p );
process.start( "umount", { partPath } );
process.waitForFinished();
if ( process.exitCode() == 0 )
goodNews.append( QString( "Successfully unmounted %1." ).arg( partPath ) );
process.start( "swapoff", { partPath } );
process.waitForFinished();
if ( process.exitCode() == 0 )
goodNews.append( QString( "Successfully disabled swap %1." ).arg( partPath ) );
}
Calamares::JobResult ok = Calamares::JobResult::ok();
ok.setMessage( tr( "Cleared all mounts for %1" )
.arg( m_device->deviceNode() ) );