Method install

launcher/modplatform/modpacksch/FTBPackInstallTask.cpp:148–212

}

void PackInstallTask::install()
{
    setStatus(tr("Copying modpack files"));

    for (auto iter = filesToCopy.begin(); iter != filesToCopy.end(); iter++) {
        auto &to = iter.key();
        auto &from = iter.value();
        FS::copy fileCopyOperation(from, to);
        if(!fileCopyOperation()) {
            qWarning() << "Failed to copy" << from << "to" << to;
            emitFailed(tr("Failed to copy files"));
            return;
        }
    }

    setStatus(tr("Installing modpack"));

    auto instanceConfigPath = FS::PathCombine(m_stagingPath, "instance.cfg");
    auto instanceSettings = std::make_shared<INISettingsObject>(instanceConfigPath);
    instanceSettings->suspendSave();
    instanceSettings->registerSetting("InstanceType", "Legacy");
    instanceSettings->set("InstanceType", "OneSix");

    MinecraftInstance instance(m_globalSettings, instanceSettings, m_stagingPath);
    auto components = instance.getPackProfile();
    components->buildingFromScratch();

    for(auto target : m_version.targets) {
        if(target.type == "game" && target.name == "minecraft") {
            components->setComponentVersion("net.minecraft", target.version, true);
            break;
        }
    }

    for(auto target : m_version.targets) {
        if(target.type != "modloader") continue;

        if(target.name == "forge") {
            components->setComponentVersion("net.minecraftforge", target.version, true);
        }
        else if(target.name == "fabric") {
            components->setComponentVersion("net.fabricmc.fabric-loader", target.version, true);
        }
    }

    // install any jar mods
    QDir jarModsDir(FS::PathCombine(m_stagingPath, "minecraft", "jarmods"));
    if (jarModsDir.exists()) {
        QStringList jarMods;

        for (const auto& info : jarModsDir.entryInfoList(QDir::NoDotAndDotDot | QDir::Files)) {
            jarMods.push_back(info.absoluteFilePath());
        }

        components->installJarMods(jarMods);
    }

    components->saveNow();