Method extractSubDir

launcher/MMCZip.cpp:211–255

ours

// ours
nonstd::optional<QStringList> MMCZip::extractSubDir(QuaZip *zip, const QString & subdir, const QString &target)
{
    QDir directory(target);
    QStringList extracted;

    qDebug() << "Extracting subdir" << subdir << "from" << zip->getZipName() << "to" << target;
    auto numEntries = zip->getEntriesCount();
    if(numEntries < 0) {
        qWarning() << "Failed to enumerate files in archive";
        return nonstd::nullopt;
    }
    else if(numEntries == 0) {
        qDebug() << "Extracting empty archives seems odd...";
        return extracted;
    }
    else if (!zip->goToFirstFile())
    {
        qWarning() << "Failed to seek to first file in zip";
        return nonstd::nullopt;
    }

    do
    {
        QString name = zip->getCurrentFileName();
        if(!name.startsWith(subdir))
        {
            continue;
        }
        name.remove(0, subdir.size());
        QString absFilePath = directory.absoluteFilePath(name);
        if(name.isEmpty())
        {
            absFilePath += "/";
        }
        if (!JlCompress::extractFile(zip, "", absFilePath))
        {
            qWarning() << "Failed to extract file" << name << "to" << absFilePath;
            JlCompress::removeFile(extracted);
            return nonstd::nullopt;
        }
        extracted.append(absFilePath);
        qDebug() << "Extracted file" << name;
    } while (zip->goToNextFile());
    return extracted;
}

// ours
bool MMCZip::extractRelFile(QuaZip *zip, const QString &file, const QString &target)