Method install

launcher/modplatform/legacy_ftb/PackInstallTask.cpp:152–246

}

void PackInstallTask::install()
{
    progress(3, 4);
    setStatus(tr("Installing modpack"));
    QDir unzipMcDir(m_stagingPath + "/unzip/minecraft");
    if(unzipMcDir.exists())
    {
        //ok, found minecraft dir, move contents to instance dir
        if(!QDir().rename(m_stagingPath + "/unzip/minecraft", m_stagingPath + "/.minecraft"))
        {
            emitFailed(tr("Failed to move unzipped Minecraft!"));
            return;
        }
    }

    QString instanceConfigPath = FS::PathCombine(m_stagingPath, "instance.cfg");
    auto instanceSettings = std::make_shared<INISettingsObject>(instanceConfigPath);
    instanceSettings->suspendSave();

    MinecraftInstance instance(m_globalSettings, instanceSettings, m_stagingPath);
    auto components = instance.getPackProfile();
    components->buildingFromScratch();
    components->setComponentVersion("net.minecraft", m_pack.mcVersion, true);

    bool fallback = true;

    //handle different versions
    QFile packJson(m_stagingPath + "/.minecraft/pack.json");
    QDir jarmodDir = QDir(m_stagingPath + "/unzip/instMods");
    if(packJson.exists())
    {
        packJson.open(QIODevice::ReadOnly | QIODevice::Text);
        QJsonDocument doc = QJsonDocument::fromJson(packJson.readAll());
        packJson.close();

        //we only care about the libs
        QJsonArray libs = doc.object().value("libraries").toArray();

        foreach (const QJsonValue &value, libs)
        {
            QString nameValue = value.toObject().value("name").toString();
            if(!nameValue.startsWith("net.minecraftforge"))
            {
                continue;
            }

            GradleSpecifier forgeVersion(nameValue);

            components->setComponentVersion("net.minecraftforge", forgeVersion.version().replace(m_pack.mcVersion, "").replace("-", ""));
            packJson.remove();
            fallback = false;
            break;
        }

    }

    if(jarmodDir.exists())
    {