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/**************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt Installer Framework.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, 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, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
**************************************************************************/
#include "linereplaceoperation.h"
#include <QtCore/QDir>
#include <QtCore/QFile>
#include <QtCore/QTextStream>
using namespace QInstaller;
LineReplaceOperation::LineReplaceOperation()
{
setName(QLatin1String("LineReplace"));
}
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, exactly 3 expected.").arg(name()).arg(args
.count()));
return false;
}
const QString fileName = args.at(0);
const QString searchString = args.at(1);
const QString replaceString = args.at(2);
QFile file(fileName);
if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) {
setError(UserDefinedError);
setErrorString(QObject::tr("Failed to open %1 for reading.").arg(fileName));
return false;
}
QString replacement;
QTextStream stream(&file);
while (!stream.atEnd()) {
const QString line = stream.readLine();
if (line.trimmed().startsWith(searchString))
replacement.append(replaceString + QLatin1String("\n"));
else
replacement.append(line + QLatin1String("\n"));
}
file.close();
if (!file.open(QIODevice::WriteOnly | QIODevice::Text)) {
setError(UserDefinedError);
setErrorString(QObject::tr("Failed to open %1 for writing.").arg(fileName));
return false;
}
stream.setDevice(&file);
stream << replacement;
file.close();
return true;
}
bool LineReplaceOperation::undoOperation()
{
return true;
}
bool LineReplaceOperation::testOperation()
{
return true;
}
Operation *LineReplaceOperation::clone() const
{
return new LineReplaceOperation();
}
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