#3472 Regression Test : Add GitDiff

ApplicationCode/Application/Tools/RiaGitDiff.h

@@ -0,0 +1,57 @@
+/////////////////////////////////////////////////////////////////////////////////
+//
+//  Copyright (C) 2018     Statoil ASA
+//
+//  ResInsight 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 3 of the License, or
+//  (at your option) any later version.
+//
+//  ResInsight 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 at <http://www.gnu.org/licenses/gpl.html>
+//  for more details.
+//
+/////////////////////////////////////////////////////////////////////////////////
+
+#pragma once
+
+#include <QString>
+
+//==================================================================================================
+//
+// Use external tool 'git' to produce a text string representing the diff
+//
+//==================================================================================================
+class RiaGitDiff
+{
+public:
+    enum ErrorType
+    {
+        IC_NO_ERROR, // No error occurred
+        IC_ERROR, // An error occurred
+        SEVERE_ERROR // Severe error occurred, it is likely that another call to compare() will also fail
+    };
+
+public:
+    explicit RiaGitDiff(const QString& pathToGitTool);
+    ~RiaGitDiff();
+
+    bool      executeDiff(const QString& baseFolder);
+    ErrorType error() const;
+    QString   errorMessage() const;
+    QString   errorDetails() const;
+    QString   diffOutput() const;
+
+private:
+    void reset();
+
+private:
+    const QString m_pathToGitTool;
+    ErrorType     m_lastError;
+    QString       m_errorMsg;
+    QString       m_errorDetails;
+    QString       m_diffOutput;
+};