copy-recursively.cpp

/**
 * @brief copyDir
 * @param src
 * @param dest
 * @return bool
 *
 *  Authors: wysota , Yash
 *  http://kineticwing.com 
 *
 *  License Apache 2.0
 *
 */
bool copyDir(const QString &src, const QString &dest)
{

    QDir dir(src);

    QDir dirdest(dest);

    if(!dir.isReadable())
        return false;

    QFileInfoList entries = dir.entryInfoList();

    for(QList<QFileInfo>::iterator it = entries.begin(); it!=entries.end();++it)
    {
        QFileInfo &fileInfo = *it;

        if(fileInfo.fileName()=="." || fileInfo.fileName()=="..")
        {
            continue;
        }
        else if(fileInfo.isDir())
        {
            qDebug() << dest + fileInfo.fileName() ;
            QDir d;
            d.mkdir(dest + "/" + fileInfo.fileName());

            copyDir(fileInfo.filePath(),dest + "/" + fileInfo.fileName());
            continue;
        }
        else if(fileInfo.isSymLink())
        {
            continue;
        }
        else if(fileInfo.isFile() && fileInfo.isReadable())
        {

            QFile file(fileInfo.filePath());
            file.copy(dirdest.absoluteFilePath(fileInfo.fileName()));
        }
        else
            return false;

    }

    return true;
}



or 





//https://qt.gitorious.org/qt-creator/qt-creator/source/1a37da73abb60ad06b7e33983ca51b266be5910e:src/app/main.cpp#L13-189
// taken from utils/fileutils.cpp. We can not use utils here since that depends app_version.h.
static bool copyRecursively(const QString &srcFilePath,
                            const QString &tgtFilePath)
{
    QFileInfo srcFileInfo(srcFilePath);
    if (srcFileInfo.isDir()) {
        QDir targetDir(tgtFilePath);
        targetDir.cdUp();
        if (!targetDir.mkdir(QFileInfo(tgtFilePath).fileName()))
            return false;
        QDir sourceDir(srcFilePath);
        QStringList fileNames = sourceDir.entryList(QDir::Files | QDir::Dirs | QDir::NoDotAndDotDot | QDir::Hidden | QDir::System);
        foreach (const QString &fileName, fileNames) {
            const QString newSrcFilePath
                    = srcFilePath + QLatin1Char('/') + fileName;
            const QString newTgtFilePath
                    = tgtFilePath + QLatin1Char('/') + fileName;
            if (!copyRecursively(newSrcFilePath, newTgtFilePath))
                return false;
        }
    } else {
        if (!QFile::copy(srcFilePath, tgtFilePath))
            return false;
    }
    return true;
}