Method executeTask

launcher/minecraft/update/FMLLibrariesTask.cpp:15–78

    m_inst = inst;
}
void FMLLibrariesTask::executeTask()
{
    // Get the mod list
    MinecraftInstance *inst = (MinecraftInstance *)m_inst;
    auto components = inst->getPackProfile();
    auto profile = components->getProfile();

    if (!profile->hasTrait("legacyFML"))
    {
        emitSucceeded();
        return;
    }

    QString version = components->getComponentVersion("net.minecraft");
    auto &fmlLibsMapping = g_VersionFilterData.fmlLibsMapping;
    if (!fmlLibsMapping.contains(version))
    {
        emitSucceeded();
        return;
    }

    auto &libList = fmlLibsMapping[version];

    // determine if we need some libs for FML or forge
    setStatus(tr("Checking for FML libraries..."));
    if(!components->getComponent("net.minecraftforge"))
    {
        emitSucceeded();
        return;
    }

    // now check the lib folder inside the instance for files.
    for (auto &lib : libList)
    {
        QFileInfo libInfo(FS::PathCombine(inst->libDir(), lib.filename));
        if (libInfo.exists())
            continue;
        fmlLibsToProcess.append(lib);
    }

    // if everything is in place, there's nothing to do here...
    if (fmlLibsToProcess.isEmpty())
    {
        emitSucceeded();
        return;
    }

    // download missing libs to our place
    setStatus(tr("Downloading FML libraries..."));
    auto dljob = new NetJob("FML libraries", APPLICATION->network());
    auto metacache = APPLICATION->metacache();
    for (auto &lib : fmlLibsToProcess)
    {
        auto entry = metacache->resolveEntry("fmllibs", lib.filename);
        QString urlString = BuildConfig.FMLLIBS_BASE_URL + lib.filename;
        dljob->addNetAction(Net::Download::makeCached(QUrl(urlString), entry));
    }