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backup.cpp
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/* This file is part of the KDE project
Copyright (C) 2008 Omat Holding B.V. <info@omat.nl>
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 2 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, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "backup.h"
#include "global.h"
#include <KDebug>
#include <KIO/NetAccess>
#include <KProcess>
#include <KStandardDirs>
#include <KTempDir>
#include <KUrl>
#include <QDir>
#include <akonadi/private/xdgbasedirs_p.h>
#include <akonadi/agentmanager.h>
using namespace Akonadi;
/**
* Use this class to create a backup. possible() will tell you if all
* apps needed for the backup are available. Don't proceed without them.
* After that call create() to get it running. Please make sure the parameter
* has the tar.bz2 extension.
*/
Backup::Backup( QWidget *parent ) : QWidget( parent )
{
}
bool Backup::possible()
{
Tray::Global global;
QString dbDumpAppName;
if( global.dbdriver() == QLatin1String("QPSQL") )
dbDumpAppName = QLatin1String("pg_dump");
else if( global.dbdriver() == QLatin1String("QMYSQL") )
dbDumpAppName = QLatin1String("mysqldump");
else {
kError() << "Could not find an application to dump the database.";
}
m_dbDumpApp = KStandardDirs::findExe( dbDumpAppName );
const QString bzip2 = KStandardDirs::findExe( QLatin1String("bzip2") );
const QString tar = KStandardDirs::findExe( QLatin1String("tar") );
kDebug() << "m_dbDumpApp:" << m_dbDumpApp << "bzip2:" << bzip2 << "tar:" << tar;
return !m_dbDumpApp.isEmpty() && !bzip2.isEmpty() && !tar.isEmpty();
}
void Backup::create( const KUrl& filename )
{
if ( filename.isEmpty() ) {
emit completed( false );
return;
}
const QString sep( QDir::separator() );
/* first create the temp folder. */
KTempDir *tempDir = new KTempDir( KStandardDirs::locateLocal( "tmp", QLatin1String("akonadi") ) );
tempDir->setAutoRemove( false );
KIO::NetAccess::mkdir( QString(tempDir->name() + QLatin1String("kdeconfig")), this );
KIO::NetAccess::mkdir( QString(tempDir->name() + QLatin1String("akonadiconfig")), this );
KIO::NetAccess::mkdir( QString(tempDir->name() + QLatin1String("db")), this );
QStringList filesToBackup;
/* Copy over the KDE config files. */
AgentManager *manager = AgentManager::self();
const AgentInstance::List list = manager->instances();
foreach( const AgentInstance &agent, list ) {
const QString agentFileName = agent.identifier() + QLatin1String("rc");
const QString configFileName = KStandardDirs::locateLocal( "config", agentFileName );
bool exists = KIO::NetAccess::exists( configFileName, KIO::NetAccess::DestinationSide, this );
if ( exists ) {
KIO::NetAccess::file_copy( configFileName,
QString(tempDir->name() + QLatin1String("kdeconfig") + sep + agentFileName), this );
filesToBackup << QLatin1String("kdeconfig") + sep + agentFileName;
}
}
/* Copy over the Akonadi config files */
const QString config = XdgBaseDirs::findResourceDir( "config", QLatin1String("akonadi") );
QDir dir( config );
const QStringList configlist = dir.entryList( QDir::Files );
foreach( const QString& item, configlist ) {
KIO::NetAccess::file_copy( QString(config + sep + item),
QString(tempDir->name() + QLatin1String("akonadiconfig") + sep + item), this );
filesToBackup << QLatin1String("akonadiconfig/") + item;
}
/* Dump the database */
Tray::Global global;
KProcess *proc = new KProcess( this );
QStringList params;
if( global.dbdriver() == QLatin1String("QMYSQL") ) {
params << QLatin1String("--single-transaction")
<< QLatin1String("--flush-logs")
<< QLatin1String("--triggers")
<< QLatin1String("--result-file=") + tempDir->name() + QLatin1String("db") + sep + QLatin1String("database.sql")
<< global.dboptions()
<< global.dbname();
}
else if ( global.dbdriver() == QLatin1String("QPSQL") ) {
params << QLatin1String("--format=custom")
<< QLatin1String("--blobs")
<< QLatin1String("--file=") + tempDir->name() + QLatin1String("db") + sep + QLatin1String("database.sql")
<< global.dboptions()
<< global.dbname();
}
kDebug() << "Executing: " << m_dbDumpApp << params;
proc->setProgram( m_dbDumpApp, params );
int result = proc->execute();
delete proc;
if ( result != 0 ) {
kWarning() << "Executed: " << m_dbDumpApp << params << "Result: " << result;
tempDir->unlink();
delete tempDir;
emit completed( false );
return;
}
filesToBackup << QLatin1String("db") + sep + QLatin1String("database.sql");
/* Make a nice tar file. */
proc = new KProcess( this );
params.clear();
params << QLatin1String("-C") << tempDir->name();
params << QLatin1String("-cjf");
params << filename.toLocalFile() << filesToBackup;
proc->setWorkingDirectory( tempDir->name() );
proc->setProgram( KStandardDirs::findExe( QLatin1String("tar") ), params );
result = proc->execute();
delete proc;
if ( result != 0 ) {
kWarning() << "Executed: " << KStandardDirs::findExe( QLatin1String("tar") ) << params << QLatin1String("Result: ") << result;
tempDir->unlink();
delete tempDir;
emit completed( false );
return;
}
tempDir->unlink();
delete tempDir;
emit completed( true );
}

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