Function MigrateLegacyToDescriptor

src/wallet/wallet.cpp:4282–4325

}

util::Result<MigrationResult> MigrateLegacyToDescriptor(const std::string& wallet_name, const SecureString& passphrase, WalletContext& context, bool load_wallet)
{
    std::vector<bilingual_str> warnings;
    bilingual_str error;

    // The only kind of wallets that could be loaded are descriptor ones, which don't need to be migrated.
    if (auto wallet = GetWallet(context, wallet_name)) {
        assert(wallet->IsWalletFlagSet(WALLET_FLAG_DESCRIPTORS));
        return util::Error{_("Error: This wallet is already a descriptor wallet")};
    } else {
        // Check if the wallet is BDB
        const auto& wallet_path = GetWalletPath(wallet_name);
        if (!wallet_path) {
            return util::Error{util::ErrorString(wallet_path)};
        }
        if (!fs::exists(*wallet_path)) {
            return util::Error{_("Error: Wallet does not exist")};
        }
        if (!IsBDBFile(BDBDataFile(*wallet_path))) {
            return util::Error{_("Error: This wallet is already a descriptor wallet")};
        }
    }

    // Load the wallet but only in the context of this function.
    // No signals should be connected nor should anything else be aware of this wallet
    WalletContext empty_context;
    empty_context.args = context.args;
    DatabaseOptions options;
    options.require_existing = true;
    options.require_format = DatabaseFormat::BERKELEY_RO;
    DatabaseStatus status;
    std::unique_ptr<WalletDatabase> database = MakeWalletDatabase(wallet_name, options, status, error);
    if (!database) {
        return util::Error{Untranslated("Wallet file verification failed.") + Untranslated(" ") + error};
    }

    // Make the local wallet
    std::shared_ptr<CWallet> local_wallet = CWallet::LoadExisting(empty_context, wallet_name, std::move(database), error, warnings);
    if (!local_wallet) {
        return util::Error{Untranslated("Wallet loading failed.") + Untranslated(" ") + error};
    }

    return MigrateLegacyToDescriptor(std::move(local_wallet), passphrase, context, load_wallet);
}

util::Result<MigrationResult> MigrateLegacyToDescriptor(std::shared_ptr<CWallet> local_wallet, const SecureString& passphrase, WalletContext& context, bool load_wallet)
{