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diff --git a/src/lib/corelib/jsextensions/textfile.h b/src/lib/corelib/jsextensions/textfile.h
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+++ b/src/lib/corelib/jsextensions/textfile.h
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+/****************************************************************************
+**
+** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the Qt Build Suite.
+**
+** 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.
+**
+****************************************************************************/
+
+#ifndef QBS_TEXTFILE_H
+#define QBS_TEXTFILE_H
+
+#include <QObject>
+#include <QScriptable>
+#include <QVariant>
+
+QT_BEGIN_NAMESPACE
+class QFile;
+class QTextStream;
+QT_END_NAMESPACE
+
+namespace qbs {
+namespace Internal {
+
+void initializeJsExtensionTextFile(QScriptValue extensionObject);
+
+class TextFile : public QObject, public QScriptable
+{
+    Q_OBJECT
+    Q_ENUMS(OpenMode)
+public:
+    enum OpenMode { ReadOnly, WriteOnly, ReadWrite };
+    static QScriptValue ctor(QScriptContext *context, QScriptEngine *engine);
+    TextFile(QScriptContext *context, const QString &file, OpenMode mode = ReadOnly, const QString &codec = QLatin1String("UTF8"));
+    ~TextFile();
+    Q_INVOKABLE void close();
+    Q_INVOKABLE void setCodec(const QString &codec);
+    Q_INVOKABLE QString readLine();
+    Q_INVOKABLE QString readAll();
+    Q_INVOKABLE bool atEof() const;
+    Q_INVOKABLE void truncate();
+    Q_INVOKABLE void write(const QString &str);
+    Q_INVOKABLE void writeLine(const QString &str);
+private:
+    QFile *qfile;
+    QTextStream *qstream;
+};
+
+} // namespace Internal
+} // namespace qbs
+
+Q_DECLARE_METATYPE(qbs::Internal::TextFile *)
+
+#endif // QBS_TEXTFILE_H