qint64 currentSize = m_bytesBefore
                                 - QStorageInfo(m_targetPath.toFileInfo().dir()).bytesAvailable();
            // We can not get the uncompressed size of the archive yet, that is why we use an
            // approximation. We assume a 50% compression rate.
            int progress = std::min(100ll, currentSize * 100 / m_compressedSize * 2);
            if (progress >= 0) {
                m_progress = progress;
                emit progressChanged();
            } else {
                qWarning() << "FileExtractor has got negative progress. Likely due to QStorageInfo.";