Function loadAssetsIndexJson

launcher/minecraft/AssetsUtils.cpp:86–170

* Returns true on success, with index populated * index is undefined otherwise */

 * index is undefined otherwise
 */
bool loadAssetsIndexJson(const QString& assetsId, const QString& path, AssetsIndex& index)
{
    /*
    {
      "objects": {
        "icons/icon_16x16.png": {
          "hash": "bdf48ef6b5d0d23bbb02e17d04865216179f510a",
          "size": 3665
        },
        ...
        }
      }
    }
    */

    QFile file(path);

    // Try to open the file and fail if we can't.
    // TODO: We should probably report this error to the user.
    if (!file.open(QIODevice::ReadOnly)) {
        qCritical() << "Failed to read assets index file" << path;
        return false;
    }
    index.id = assetsId;

    // Read the file and close it.
    QByteArray jsonData = file.readAll();
    file.close();

    QJsonParseError parseError;
    QJsonDocument jsonDoc = QJsonDocument::fromJson(jsonData, &parseError);

    // Fail if the JSON is invalid.
    if (parseError.error != QJsonParseError::NoError) {
        qCritical() << "Failed to parse assets index file:" << parseError.errorString() << "at offset "
                    << QString::number(parseError.offset);
        return false;
    }

    // Make sure the root is an object.
    if (!jsonDoc.isObject()) {
        qCritical() << "Invalid assets index JSON: Root should be an array.";
        return false;
    }

    QJsonObject root = jsonDoc.object();

    QJsonValue isVirtual = root.value("virtual");
    if (!isVirtual.isUndefined()) {
        index.isVirtual = isVirtual.toBool(false);
    }

    QJsonValue mapToResources = root.value("map_to_resources");
    if (!mapToResources.isUndefined()) {
        index.mapToResources = mapToResources.toBool(false);
    }

    QJsonValue objects = root.value("objects");