cxFileHelpers.cpp

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/*=========================================================================
This file is part of CustusX, an Image Guided Therapy Application.

Copyright (c) 2008-2014, SINTEF Department of Medical Technology
All rights reserved.

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modification, are permitted provided that the following conditions are met:

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   this list of conditions and the following disclaimer.

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   this list of conditions and the following disclaimer in the documentation 
   and/or other materials provided with the distribution.

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   may be used to endorse or promote products derived from this software 
   without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
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=========================================================================*/

#include "cxFileHelpers.h"
#include <QFile>
#include <QDir>
#include <QFileInfo>
#include <QTextStream>
#include "cxLogger.h"

namespace cx
{

//From http://stackoverflow.com/questions/2536524/copy-directory-using-qt
bool copyRecursively(QString sourceDir, QString destinationDir, bool overWriteDirectory)
{
        QDir originDirectory(sourceDir);

        if (! originDirectory.exists())
        {
                return false;
        }

        QDir destinationDirectory(destinationDir);

        if(destinationDirectory.exists() && !overWriteDirectory)
        {
                return false;
        }
        else if(destinationDirectory.exists() && overWriteDirectory)
        {
                destinationDirectory.removeRecursively();
        }

        originDirectory.mkpath(destinationDir);

        foreach (QString directoryName, originDirectory.entryList(QDir::Dirs | \
                                                                                                                          QDir::NoDotAndDotDot))
        {
                QString destinationPath = destinationDir + "/" + directoryName;
                originDirectory.mkpath(destinationPath);
                copyRecursively(sourceDir + "/" + directoryName, destinationPath, overWriteDirectory);
        }

        foreach (QString fileName, originDirectory.entryList(QDir::Files))
        {
                QFile::copy(sourceDir + "/" + fileName, destinationDir + "/" + fileName);
        }

        QDir finalDestination(destinationDir);
        finalDestination.refresh();

        if(finalDestination.exists())
        {
                return true;
        }

        return false;
}

bool removeNonemptyDirRecursively(const QString & dirName)
{
        bool result = false;
        QDir dir(dirName);

        if (dir.exists(dirName)) {
                Q_FOREACH(QFileInfo info, dir.entryInfoList(QDir::NoDotAndDotDot | QDir::System | QDir::Hidden  | QDir::AllDirs | QDir::Files, QDir::DirsFirst)) {
                        if (info.isDir()) {
                                result = removeNonemptyDirRecursively(info.absoluteFilePath());
                        }
                        else {
                                result = QFile::remove(info.absoluteFilePath());
                        }

                        if (!result) {
                                return result;
                        }
                }
                result = dir.rmdir(dirName);
        }
        return result;
}

QFileInfoList getDirs(QString path)
{
        QDir dir(path);
        dir.setFilter(QDir::AllDirs|QDir::NoDotAndDotDot);
        QFileInfoList retval = dir.entryInfoList();
        return retval;
}

QStringList getAbsolutePathToFiles(QString path, QStringList nameFilters, bool includeSubDirs)
{
        QStringList retval;
        QDir dir(path);
        dir.setFilter(QDir::Files);
        dir.setNameFilters(nameFilters);

        foreach(QFileInfo file, dir.entryInfoList())
                retval << file.absoluteFilePath();

        if (includeSubDirs)
                foreach(QFileInfo directory, getDirs(path))
                        retval << getAbsolutePathToFiles(directory.absoluteFilePath(), nameFilters, includeSubDirs);

        return retval;
}

QStringList getAbsolutePathToXmlFiles(QString path, bool includeSubDirs)
{
        return getAbsolutePathToFiles(path, QStringList("*.xml"), includeSubDirs);
}

void forceNewlineBeforeEof(QString path)
{
        QFile the_file(path);
        the_file.open(QFile::ReadWrite);
        QByteArray all = the_file.readAll();
        if(!all.endsWith("\n"))
        {
                CX_LOG_WARNING() << "File does not end with whitespace, adding newline to the file: " << path;
                QTextStream out(&the_file);
                out << endl;
        }
        the_file.close();

}

} // namespace cx