Function getMinecraftJavaBundle

launcher/java/JavaUtils.cpp:516–558

}

QStringList getMinecraftJavaBundle()
{
    QStringList processpaths;
#if defined(Q_OS_MACOS)
    processpaths << FS::PathCombine(QDir::homePath(), FS::PathCombine("Library", "Application Support", "minecraft", "runtime"));
#elif defined(Q_OS_WIN32)

    auto appDataPath = QProcessEnvironment::systemEnvironment().value("APPDATA", "");
    processpaths << FS::PathCombine(QFileInfo(appDataPath).absoluteFilePath(), ".minecraft", "runtime");

    // add the microsoft store version of the launcher to the search. the current path is:
    // C:\Users\USERNAME\AppData\Local\Packages\Microsoft.4297127D64EC6_8wekyb3d8bbwe\LocalCache\Local\runtime
    auto localAppDataPath = QProcessEnvironment::systemEnvironment().value("LOCALAPPDATA", "");
    auto minecraftMSStorePath =
        FS::PathCombine(QFileInfo(localAppDataPath).absoluteFilePath(), "Packages", "Microsoft.4297127D64EC6_8wekyb3d8bbwe");
    processpaths << FS::PathCombine(minecraftMSStorePath, "LocalCache", "Local", "runtime");
#else
    processpaths << FS::PathCombine(QDir::homePath(), ".minecraft", "runtime");
#endif

    QStringList javas;
    while (!processpaths.isEmpty()) {
        auto dirPath = processpaths.takeFirst();
        QDir dir(dirPath);
        if (!dir.exists())
            continue;
        auto entries = dir.entryInfoList(QDir::Dirs | QDir::NoDotAndDotDot);
        auto binFound = false;
        for (auto& entry : entries) {
            if (entry.baseName() == "bin") {
                javas.append(FS::PathCombine(entry.canonicalFilePath(), JavaUtils::javaExecutable));
                binFound = true;
                break;
            }
        }
        if (!binFound) {
            for (auto& entry : entries) {
                processpaths << entry.canonicalFilePath();
            }
        }
    }
    return javas;
}

#if defined(Q_OS_WIN32)
const QString JavaUtils::javaExecutable = "javaw.exe";