added new Link class and corresponding operation

 - replace read junction link target code with already existing Qt code

Change-Id: I6642f19ceb9a907791987ced8e9eacc6ca4f2780
Reviewed-by: Karsten Heimrich <karsten.heimrich@nokia.com>

1 files changed, 105 insertions, 0 deletions

diff --git a/src/libs/installer/createlinkoperation.cpp b/src/libs/installer/createlinkoperation.cpp
new file mode 100644
index 000000000..b844e179b
--- /dev/null
+++ b/src/libs/installer/createlinkoperation.cpp
@@ -0,0 +1,105 @@
+/**************************************************************************
+**
+** This file is part of Installer Framework
+**
+** Copyright (c) 2012 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+**
+** 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.
+**
+** Other Usage
+**
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**************************************************************************/
+#include "createlinkoperation.h"
+
+#include "link.h"
+
+#include <QFileInfo>
+
+using namespace QInstaller;
+
+/*
+TRANSLATOR QInstaller::CreateLinkOperation
+*/
+
+CreateLinkOperation::CreateLinkOperation()
+{
+    setName(QLatin1String("CreateLink"));
+}
+
+void CreateLinkOperation::backup()
+{
+}
+
+bool CreateLinkOperation::performOperation()
+{
+    QStringList args = arguments();
+
+    if (args.count() != 2) {
+        setError(InvalidArguments);
+        setErrorString(QObject::tr("Invalid arguments: %1 arguments given, 2 expected").arg(
+            args.count()));
+        return false;
+    }
+
+    const QString& linkPath = args.at(0);
+    const QString& targetPath = args.at(1);
+    Link link = Link::create(linkPath, targetPath);
+
+    if (!link.isValid()) {
+        setError(UserDefinedError);
+        setErrorString(QObject::tr("Could not create link from %1 to %2.").arg(linkPath, targetPath));
+        return false;
+    }
+
+    return true;
+}
+
+bool CreateLinkOperation::undoOperation()
+{
+    QStringList args = arguments();
+
+    const QString& linkPath = args.at(0);
+    const QString& targetPath = args.at(1);
+
+    if (!QFileInfo(linkPath).exists()) {
+        return true;
+    }
+    Link link = Link(linkPath);
+    if (!link.remove()) {
+        setError(UserDefinedError);
+        setErrorString(QObject::tr("Could not remove link from %1 to %2.").arg(linkPath, targetPath));
+        return false;
+    }
+
+    return !QFileInfo(linkPath).exists();
+}
+
+bool CreateLinkOperation::testOperation()
+{
+    return true;
+}
+
+Operation *CreateLinkOperation::clone() const
+{
+    return new CreateLinkOperation();
+}