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/**************************************************************************
**
** This file is part of Qt SDK**
**
** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).*
**
** Contact: Nokia Corporation qt-info@nokia.com**
**
** No Commercial Usage
**
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
**
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this file.
** Please review the following information to ensure the GNU Lesser General
** Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception version
** 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you are unsure which license is appropriate for your use, please contact
** (qt-info@nokia.com).
**
**************************************************************************/
#include "linereplaceoperation.h"
#include <qinstaller.h>
#include "common/utils.h"
#include <QFile>
#include <QDir>
#include <QDebug>
#include <QBuffer>
using namespace QInstaller;
LineReplaceOperation::LineReplaceOperation()
{
setName(QLatin1String("LineReplace"));
}
LineReplaceOperation::~LineReplaceOperation()
{
}
void LineReplaceOperation::backup()
{
}
bool LineReplaceOperation::performOperation()
{
const QStringList args = arguments();
// Arguments:
// 1. filename
// 2. startsWith Search-String
// 3. Replace-Line-String
if ( args.count() != 3 ) {
setError( InvalidArguments );
setErrorString( tr("Invalid arguments in %0: %1 arguments given, 3 expected.")
.arg(name()).arg( args.count() ) );
return false;
}
const QString currentFileName = args.at(0);
const QString searchString = args.at(1);
const QString replaceString = args.at(2);
QString debugString( QLatin1String("Replacing lines with %1 to %2 in %3") );
debugString = debugString.arg(searchString);
debugString = debugString.arg(replaceString);
debugString = debugString.arg(currentFileName);
verbose() << debugString;
QFile file(currentFileName);
if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) {
setError( UserDefinedError );
setErrorString( QObject::tr( "Failed to open %1 for reading" ).arg( currentFileName ) );
return false;
}
QByteArray memorybyteArray;
while (!file.atEnd()) {
QByteArray line = file.readLine();
if (QString::fromLatin1(line).trimmed().startsWith(searchString)) {
memorybyteArray.append(replaceString.toLatin1()).append("\n");
} else {
memorybyteArray.append(line);
}
}
file.close();
if (!file.open(QIODevice::WriteOnly | QIODevice::Text)) {
setError( UserDefinedError );
setErrorString( QObject::tr( "Failed to open %1 for writing" ).arg( currentFileName ) );
return false;
}
file.write( memorybyteArray );
file.close();
return true;
}
bool LineReplaceOperation::undoOperation()
{
// Need to remove settings again
return true;
}
bool LineReplaceOperation::testOperation()
{
return true;
}
KDUpdater::UpdateOperation* LineReplaceOperation::clone() const
{
return new LineReplaceOperation();
}
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