Merge bitcoin/bitcoin#32438: refactor: Removals after bdb removal

fanquake · fanquake · commit 9a05b45da60d · 2025-05-09T16:47:55.000+01:00
fa061bf Remove create options from wallet tool (MarcoFalke) fa2125e Remove unused IsSingleKey (MarcoFalke) fab5e2a doc: Remove note about bdb wallets (MarcoFalke) eeeef88 doc: fix typo in abortrescan rpc (MarcoFalke) fa7e5c1 Remove unused LegacyDataSPKM::DeleteRecords() (MarcoFalke) ffff949 remove NotifyWatchonlyChanged (MarcoFalke) fa62a01 remove dead flush() (MarcoFalke) fa5f3e6 vcpkg: Remove bdb (MarcoFalke) Pull request description: This deletes some dead code ACKs for top commit: Sjors: ACK fa061bf if CI is also happy rkrux: utACK fa061bf Tree-SHA512: 6c0b0705caa4ad024e6b921bd7f65aaa055d1f12f7884cd61823cbf0c32e46697ddbdaa209ab449d6a1df9761ce5d53763e25f26e4c36ce4c685b7524f5a3dd9
diff --git a/doc/managing-wallets.md b/doc/managing-wallets.md
@@ -82,7 +82,7 @@ In the GUI, there is no specific menu item to unlock the wallet. When the user s
 
 To backup the wallet, the `backupwallet` RPC or the `Backup Wallet` GUI menu item must be used to ensure the file is in a safe state when the copy is made.
 
-In the RPC, the destination parameter must include the name of the file. Otherwise, the command will return an error message like "Error: Wallet backup failed!" for descriptor wallets. If it is a legacy wallet, it will be copied and a file will be created with the default file name `wallet.dat`.
+In the RPC, the destination parameter must include the name of the file. Otherwise, the command will return an error message like "Error: Wallet backup failed!".
 
 ```
 $ bitcoin-cli -rpcwallet="wallet-01" backupwallet /home/node01/Backups/backup-01.dat
diff --git a/src/bitcoin-wallet.cpp b/src/bitcoin-wallet.cpp
@@ -38,12 +38,10 @@ static void SetupWalletToolArgs(ArgsManager& argsman)
     argsman.AddArg("-wallet=<wallet-name>", "Specify wallet name", ArgsManager::ALLOW_ANY | ArgsManager::NETWORK_ONLY, OptionsCategory::OPTIONS);
     argsman.AddArg("-dumpfile=<file name>", "When used with 'dump', writes out the records to this file. When used with 'createfromdump', loads the records into a new wallet.", ArgsManager::ALLOW_ANY | ArgsManager::DISALLOW_NEGATION, OptionsCategory::OPTIONS);
     argsman.AddArg("-debug=<category>", "Output debugging information (default: 0).", ArgsManager::ALLOW_ANY, OptionsCategory::DEBUG_TEST);
-    argsman.AddArg("-descriptors", "Create descriptors wallet. Only for 'create'", ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS);
-    argsman.AddArg("-legacy", "Create legacy wallet. Only for 'create'", ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS);
     argsman.AddArg("-printtoconsole", "Send trace/debug info to console (default: 1 when no -debug is true, 0 otherwise).", ArgsManager::ALLOW_ANY, OptionsCategory::DEBUG_TEST);
 
     argsman.AddCommand("info", "Get wallet info");
-    argsman.AddCommand("create", "Create new wallet file");
+    argsman.AddCommand("create", "Create a new descriptor wallet file");
     argsman.AddCommand("dump", "Print out all of the wallet key-value records");
     argsman.AddCommand("createfromdump", "Create new wallet file from dumped records");
 }
diff --git a/src/init.cpp b/src/init.cpp
@@ -298,9 +298,6 @@ void Shutdown(NodeContext& node)
     StopREST();
     StopRPC();
     StopHTTPServer();
-    for (const auto& client : node.chain_clients) {
-        client->flush();
-    }
     StopMapPort();
 
     // Because these depend on each-other, we make sure that neither can be
diff --git a/src/interfaces/chain.h b/src/interfaces/chain.h
@@ -407,9 +407,6 @@ class ChainClient
     //! Start client execution and provide a scheduler.
     virtual void start(CScheduler& scheduler) = 0;
 
-    //! Save state to disk.
-    virtual void flush() = 0;
-
     //! Shut down client.
     virtual void stop() = 0;
 
diff --git a/src/interfaces/wallet.h b/src/interfaces/wallet.h
@@ -303,10 +303,6 @@ class Wallet
     using TransactionChangedFn = std::function<void(const uint256& txid, ChangeType status)>;
     virtual std::unique_ptr<Handler> handleTransactionChanged(TransactionChangedFn fn) = 0;
 
-    //! Register handler for watchonly changed messages.
-    using WatchOnlyChangedFn = std::function<void(bool have_watch_only)>;
-    virtual std::unique_ptr<Handler> handleWatchOnlyChanged(WatchOnlyChangedFn fn) = 0;
-
     //! Register handler for keypool changed messages.
     using CanGetAddressesChangedFn = std::function<void()>;
     virtual std::unique_ptr<Handler> handleCanGetAddressesChanged(CanGetAddressesChangedFn fn) = 0;
diff --git a/src/qt/transactionview.cpp b/src/qt/transactionview.cpp
@@ -243,9 +243,6 @@ void TransactionView::setModel(WalletModel *_model)
 
         // hide column Watch-only
         updateWatchOnlyColumn(false);
-
-        // Watch-only signal
-        connect(_model, &WalletModel::notifyWatchonlyChanged, this, &TransactionView::updateWatchOnlyColumn);
     }
 }
 
diff --git a/src/qt/walletmodel.cpp b/src/qt/walletmodel.cpp
@@ -45,7 +45,6 @@ WalletModel::WalletModel(std::unique_ptr<interfaces::Wallet> wallet, ClientModel
     optionsModel(client_model.getOptionsModel()),
     timer(new QTimer(this))
 {
-    fHaveWatchOnly = false;
     addressTableModel = new AddressTableModel(this);
     transactionTableModel = new TransactionTableModel(platformStyle, this);
     recentRequestsTableModel = new RecentRequestsTableModel(this);
@@ -141,12 +140,6 @@ void WalletModel::updateAddressBook(const QString &address, const QString &label
         addressTableModel->updateEntry(address, label, isMine, purpose, status);
 }
 
-void WalletModel::updateWatchOnlyFlag(bool fHaveWatchonly)
-{
-    fHaveWatchOnly = fHaveWatchonly;
-    Q_EMIT notifyWatchonlyChanged(fHaveWatchonly);
-}
-
 bool WalletModel::validateAddress(const QString& address) const
 {
     return IsValidDestinationString(address.toStdString());
@@ -405,13 +398,6 @@ static void ShowProgress(WalletModel *walletmodel, const std::string &title, int
     assert(invoked);
 }
 
-static void NotifyWatchonlyChanged(WalletModel *walletmodel, bool fHaveWatchonly)
-{
-    bool invoked = QMetaObject::invokeMethod(walletmodel, "updateWatchOnlyFlag", Qt::QueuedConnection,
-                              Q_ARG(bool, fHaveWatchonly));
-    assert(invoked);
-}
-
 static void NotifyCanGetAddressesChanged(WalletModel* walletmodel)
 {
     bool invoked = QMetaObject::invokeMethod(walletmodel, "canGetAddressesChanged");
@@ -426,7 +412,6 @@ void WalletModel::subscribeToCoreSignals()
     m_handler_address_book_changed = m_wallet->handleAddressBookChanged(std::bind(NotifyAddressBookChanged, this, std::placeholders::_1, std::placeholders::_2, std::placeholders::_3, std::placeholders::_4, std::placeholders::_5));
     m_handler_transaction_changed = m_wallet->handleTransactionChanged(std::bind(NotifyTransactionChanged, this, std::placeholders::_1, std::placeholders::_2));
     m_handler_show_progress = m_wallet->handleShowProgress(std::bind(ShowProgress, this, std::placeholders::_1, std::placeholders::_2));
-    m_handler_watch_only_changed = m_wallet->handleWatchOnlyChanged(std::bind(NotifyWatchonlyChanged, this, std::placeholders::_1));
     m_handler_can_get_addrs_changed = m_wallet->handleCanGetAddressesChanged(std::bind(NotifyCanGetAddressesChanged, this));
 }
 
@@ -438,7 +423,6 @@ void WalletModel::unsubscribeFromCoreSignals()
     m_handler_address_book_changed->disconnect();
     m_handler_transaction_changed->disconnect();
     m_handler_show_progress->disconnect();
-    m_handler_watch_only_changed->disconnect();
     m_handler_can_get_addrs_changed->disconnect();
 }
 
diff --git a/src/qt/walletmodel.h b/src/qt/walletmodel.h
@@ -162,12 +162,10 @@ class WalletModel : public QObject
     std::unique_ptr<interfaces::Handler> m_handler_address_book_changed;
     std::unique_ptr<interfaces::Handler> m_handler_transaction_changed;
     std::unique_ptr<interfaces::Handler> m_handler_show_progress;
-    std::unique_ptr<interfaces::Handler> m_handler_watch_only_changed;
     std::unique_ptr<interfaces::Handler> m_handler_can_get_addrs_changed;
     ClientModel* m_client_model;
     interfaces::Node& m_node;
 
-    bool fHaveWatchOnly;
     bool fForceCheckBalanceChanged{false};
 
     // Wallet has an options model for wallet-specific options
@@ -211,9 +209,6 @@ class WalletModel : public QObject
     // Show progress dialog e.g. for rescan
     void showProgress(const QString &title, int nProgress);
 
-    // Watch-only address added
-    void notifyWatchonlyChanged(bool fHaveWatchonly);
-
     // Signal that wallet is about to be removed
     void unload();
 
@@ -232,8 +227,6 @@ public Q_SLOTS:
     void updateTransaction();
     /* New, updated or removed address book entry */
     void updateAddressBook(const QString &address, const QString &label, bool isMine, wallet::AddressPurpose purpose, int status);
-    /* Watch-only added */
-    void updateWatchOnlyFlag(bool fHaveWatchonly);
     /* Current, immature or unconfirmed balance might have changed - emit 'balanceChanged' if so */
     void pollBalanceChanged();
 };
diff --git a/src/script/descriptor.cpp b/src/script/descriptor.cpp
@@ -799,7 +799,6 @@ class AddressDescriptor final : public DescriptorImpl
         return OutputTypeFromDestination(m_destination);
     }
     bool IsSingleType() const final { return true; }
-    bool IsSingleKey() const final { return false; }
     bool ToPrivateString(const SigningProvider& arg, std::string& out) const final { return false; }
 
     std::optional<int64_t> ScriptSize() const override { return GetScriptForDestination(m_destination).size(); }
@@ -827,7 +826,6 @@ class RawDescriptor final : public DescriptorImpl
         return OutputTypeFromDestination(dest);
     }
     bool IsSingleType() const final { return true; }
-    bool IsSingleKey() const final { return false; }
     bool ToPrivateString(const SigningProvider& arg, std::string& out) const final { return false; }
 
     std::optional<int64_t> ScriptSize() const override { return m_script.size(); }
@@ -856,7 +854,6 @@ class PKDescriptor final : public DescriptorImpl
 public:
     PKDescriptor(std::unique_ptr<PubkeyProvider> prov, bool xonly = false) : DescriptorImpl(Vector(std::move(prov)), "pk"), m_xonly(xonly) {}
     bool IsSingleType() const final { return true; }
-    bool IsSingleKey() const final { return true; }
 
     std::optional<int64_t> ScriptSize() const override {
         return 1 + (m_xonly ? 32 : m_pubkey_args[0]->GetSize()) + 1;
@@ -892,7 +889,6 @@ class PKHDescriptor final : public DescriptorImpl
     PKHDescriptor(std::unique_ptr<PubkeyProvider> prov) : DescriptorImpl(Vector(std::move(prov)), "pkh") {}
     std::optional<OutputType> GetOutputType() const override { return OutputType::LEGACY; }
     bool IsSingleType() const final { return true; }
-    bool IsSingleKey() const final { return true; }
 
     std::optional<int64_t> ScriptSize() const override { return 1 + 1 + 1 + 20 + 1 + 1; }
 
@@ -926,7 +922,6 @@ class WPKHDescriptor final : public DescriptorImpl
     WPKHDescriptor(std::unique_ptr<PubkeyProvider> prov) : DescriptorImpl(Vector(std::move(prov)), "wpkh") {}
     std::optional<OutputType> GetOutputType() const override { return OutputType::BECH32; }
     bool IsSingleType() const final { return true; }
-    bool IsSingleKey() const final { return true; }
 
     std::optional<int64_t> ScriptSize() const override { return 1 + 1 + 20; }
 
@@ -968,7 +963,6 @@ class ComboDescriptor final : public DescriptorImpl
 public:
     ComboDescriptor(std::unique_ptr<PubkeyProvider> prov) : DescriptorImpl(Vector(std::move(prov)), "combo") {}
     bool IsSingleType() const final { return false; }
-    bool IsSingleKey() const final { return true; }
     std::unique_ptr<DescriptorImpl> Clone() const override
     {
         return std::make_unique<ComboDescriptor>(m_pubkey_args.at(0)->Clone());
@@ -993,7 +987,6 @@ class MultisigDescriptor final : public DescriptorImpl
 public:
     MultisigDescriptor(int threshold, std::vector<std::unique_ptr<PubkeyProvider>> providers, bool sorted = false) : DescriptorImpl(std::move(providers), sorted ? "sortedmulti" : "multi"), m_threshold(threshold), m_sorted(sorted) {}
     bool IsSingleType() const final { return true; }
-    bool IsSingleKey() const final { return false; }
 
     std::optional<int64_t> ScriptSize() const override {
         const auto n_keys = m_pubkey_args.size();
@@ -1045,7 +1038,6 @@ class MultiADescriptor final : public DescriptorImpl
 public:
     MultiADescriptor(int threshold, std::vector<std::unique_ptr<PubkeyProvider>> providers, bool sorted = false) : DescriptorImpl(std::move(providers), sorted ? "sortedmulti_a" : "multi_a"), m_threshold(threshold), m_sorted(sorted) {}
     bool IsSingleType() const final { return true; }
-    bool IsSingleKey() const final { return false; }
 
     std::optional<int64_t> ScriptSize() const override {
         const auto n_keys = m_pubkey_args.size();
@@ -1092,7 +1084,6 @@ class SHDescriptor final : public DescriptorImpl
         return OutputType::LEGACY;
     }
     bool IsSingleType() const final { return true; }
-    bool IsSingleKey() const final { return m_subdescriptor_args[0]->IsSingleKey(); }
 
     std::optional<int64_t> ScriptSize() const override { return 1 + 1 + 20 + 1; }
 
@@ -1134,7 +1125,6 @@ class WSHDescriptor final : public DescriptorImpl
     WSHDescriptor(std::unique_ptr<DescriptorImpl> desc) : DescriptorImpl({}, std::move(desc), "wsh") {}
     std::optional<OutputType> GetOutputType() const override { return OutputType::BECH32; }
     bool IsSingleType() const final { return true; }
-    bool IsSingleKey() const final { return m_subdescriptor_args[0]->IsSingleKey(); }
 
     std::optional<int64_t> ScriptSize() const override { return 1 + 1 + 32; }
 
@@ -1212,7 +1202,6 @@ class TRDescriptor final : public DescriptorImpl
     }
     std::optional<OutputType> GetOutputType() const override { return OutputType::BECH32M; }
     bool IsSingleType() const final { return true; }
-    bool IsSingleKey() const final { return false; }
 
     std::optional<int64_t> ScriptSize() const override { return 1 + 1 + 32; }
 
@@ -1340,7 +1329,6 @@ class MiniscriptDescriptor final : public DescriptorImpl
 
     bool IsSolvable() const override { return true; }
     bool IsSingleType() const final { return true; }
-    bool IsSingleKey() const final { return false; }
 
     std::optional<int64_t> ScriptSize() const override { return m_node->ScriptSize(); }
 
@@ -1380,7 +1368,6 @@ class RawTRDescriptor final : public DescriptorImpl
     RawTRDescriptor(std::unique_ptr<PubkeyProvider> output_key) : DescriptorImpl(Vector(std::move(output_key)), "rawtr") {}
     std::optional<OutputType> GetOutputType() const override { return OutputType::BECH32M; }
     bool IsSingleType() const final { return true; }
-    bool IsSingleKey() const final { return false; }
 
     std::optional<int64_t> ScriptSize() const override { return 1 + 1 + 32; }
 
diff --git a/src/script/descriptor.h b/src/script/descriptor.h
@@ -111,11 +111,6 @@ struct Descriptor {
     /** Whether this descriptor will return one scriptPubKey or multiple (aka is or is not combo) */
     virtual bool IsSingleType() const = 0;
 
-    /** Whether this descriptor only produces single key scripts (i.e. pk(), pkh(), wpkh(), sh() and wsh() nested of those, and combo())
-     *  TODO: Remove this method once legacy wallets are removed as it is only necessary for importmulti.
-     */
-    virtual bool IsSingleKey() const = 0;
-
     /** Convert the descriptor to a private string. This fails if the provided provider does not have the relevant private keys. */
     virtual bool ToPrivateString(const SigningProvider& provider, std::string& out) const = 0;
 
diff --git a/src/wallet/interfaces.cpp b/src/wallet/interfaces.cpp
@@ -535,10 +535,6 @@ class WalletImpl : public Wallet
         return MakeSignalHandler(m_wallet->NotifyTransactionChanged.connect(
             [fn](const uint256& txid, ChangeType status) { fn(txid, status); }));
     }
-    std::unique_ptr<Handler> handleWatchOnlyChanged(WatchOnlyChangedFn fn) override
-    {
-        return MakeSignalHandler(m_wallet->NotifyWatchonlyChanged.connect(fn));
-    }
     std::unique_ptr<Handler> handleCanGetAddressesChanged(CanGetAddressesChangedFn fn) override
     {
         return MakeSignalHandler(m_wallet->NotifyCanGetAddressesChanged.connect(fn));
@@ -578,7 +574,6 @@ class WalletLoaderImpl : public WalletLoader
         m_context.scheduler = &scheduler;
         return StartWallets(m_context);
     }
-    void flush() override {}
     void stop() override { return StopWallets(m_context); }
     void setMockTime(int64_t time) override { return SetMockTime(time); }
     void schedulerMockForward(std::chrono::seconds delta) override { Assert(m_context.scheduler)->MockForward(delta); }
diff --git a/src/wallet/rpc/transactions.cpp b/src/wallet/rpc/transactions.cpp
@@ -946,7 +946,7 @@ RPCHelpMan rescanblockchain()
 RPCHelpMan abortrescan()
 {
     return RPCHelpMan{"abortrescan",
-                "\nStops current wallet rescan triggered by an RPC call, e.g. by an rescanblockchain call.\n"
+                "Stops current wallet rescan triggered by an RPC call, e.g. by a rescanblockchain call.\n"
                 "Note: Use \"getwalletinfo\" to query the scanning progress.\n",
                 {},
                 RPCResult{RPCResult::Type::BOOL, "", "Whether the abort was successful"},
diff --git a/src/wallet/scriptpubkeyman.cpp b/src/wallet/scriptpubkeyman.cpp
@@ -820,13 +820,6 @@ std::optional<MigrationData> LegacyDataSPKM::MigrateToDescriptor()
     return out;
 }
 
-bool LegacyDataSPKM::DeleteRecords()
-{
-    return RunWithinTxn(m_storage.GetDatabase(), /*process_desc=*/"delete legacy records", [&](WalletBatch& batch){
-        return DeleteRecordsWithDB(batch);
-    });
-}
-
 bool LegacyDataSPKM::DeleteRecordsWithDB(WalletBatch& batch)
 {
     LOCK(cs_KeyStore);
diff --git a/src/wallet/scriptpubkeyman.h b/src/wallet/scriptpubkeyman.h
@@ -167,9 +167,6 @@ class ScriptPubKeyMan
         LogInfo("%s %s", m_storage.GetDisplayName(), tfm::format(wallet_fmt, params...));
     };
 
-    /** Watch-only address added */
-    boost::signals2::signal<void (bool fHaveWatchOnly)> NotifyWatchonlyChanged;
-
     /** Keypool has new keys */
     boost::signals2::signal<void ()> NotifyCanGetAddressesChanged;
 
@@ -270,7 +267,6 @@ class LegacyDataSPKM : public ScriptPubKeyMan, public FillableSigningProvider
      * Does not modify this ScriptPubKeyMan. */
     std::optional<MigrationData> MigrateToDescriptor();
     /** Delete all the records of this LegacyScriptPubKeyMan from disk*/
-    bool DeleteRecords();
     bool DeleteRecordsWithDB(WalletBatch& batch);
 };
 
diff --git a/src/wallet/test/walletload_tests.cpp b/src/wallet/test/walletload_tests.cpp
@@ -26,7 +26,6 @@ class DummyDescriptor final : public Descriptor {
     bool IsRange() const override { return false; }
     bool IsSolvable() const override { return false; }
     bool IsSingleType() const override { return true; }
-    bool IsSingleKey() const override { return true; }
     bool ToPrivateString(const SigningProvider& provider, std::string& out) const override { return false; }
     bool ToNormalizedString(const SigningProvider& provider, std::string& out, const DescriptorCache* cache = nullptr) const override { return false; }
     bool Expand(int pos, const SigningProvider& provider, std::vector<CScript>& output_scripts, FlatSigningProvider& out, DescriptorCache* write_cache = nullptr) const override { return false; };
diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp
@@ -3518,7 +3518,6 @@ bool CWallet::HaveCryptedKeys() const
 void CWallet::ConnectScriptPubKeyManNotifiers()
 {
     for (const auto& spk_man : GetActiveScriptPubKeyMans()) {
-        spk_man->NotifyWatchonlyChanged.connect(NotifyWatchonlyChanged);
         spk_man->NotifyCanGetAddressesChanged.connect(NotifyCanGetAddressesChanged);
         spk_man->NotifyFirstKeyTimeChanged.connect(std::bind(&CWallet::MaybeUpdateBirthTime, this, std::placeholders::_2));
     }
diff --git a/src/wallet/wallet.h b/src/wallet/wallet.h
@@ -842,9 +842,6 @@ class CWallet final : public WalletStorage, public interfaces::Chain::Notificati
     /** Show progress e.g. for rescan */
     boost::signals2::signal<void (const std::string &title, int nProgress)> ShowProgress;
 
-    /** Watch-only address added */
-    boost::signals2::signal<void (bool fHaveWatchOnly)> NotifyWatchonlyChanged;
-
     /** Keypool has new keys */
     boost::signals2::signal<void ()> NotifyCanGetAddressesChanged;
 
diff --git a/src/wallet/wallettool.cpp b/src/wallet/wallettool.cpp
@@ -112,26 +112,6 @@ bool ExecuteWalletToolFunc(const ArgsManager& args, const std::string& command)
         tfm::format(std::cerr, "The -dumpfile option can only be used with the \"dump\" and \"createfromdump\" commands.\n");
         return false;
     }
-    if (args.IsArgSet("-descriptors")) {
-        if (command != "create") {
-            tfm::format(std::cerr, "The -descriptors option can only be used with the 'create' command.\n");
-            return false;
-        }
-        if (!args.GetBoolArg("-descriptors", true)) {
-            tfm::format(std::cerr, "The -descriptors option must be set to \"true\"\n");
-            return false;
-        }
-    }
-    if (args.IsArgSet("-legacy")) {
-        if (command != "create") {
-            tfm::format(std::cerr, "The -legacy option can only be used with the 'create' command.\n");
-            return false;
-        }
-        if (args.GetBoolArg("-legacy", true)) {
-            tfm::format(std::cerr, "The -legacy option must be set to \"false\"\n");
-            return false;
-        }
-    }
     if (command == "create" && !args.IsArgSet("-wallet")) {
         tfm::format(std::cerr, "Wallet name must be provided when creating a new wallet.\n");
         return false;
diff --git a/test/functional/tool_wallet.py b/test/functional/tool_wallet.py
diff --git a/vcpkg.json b/vcpkg.json

Original file line number	Diff line number	Diff line change
`@@ -243,9 +243,6 @@ void TransactionView::setModel(WalletModel *_model)`
`243`	`243`
`244`	`244`	`// hide column Watch-only`
`245`	`245`	`updateWatchOnlyColumn(false);`
`246`		`-`
`247`		`- // Watch-only signal`
`248`		`- connect(_model, &WalletModel::notifyWatchonlyChanged, this, &TransactionView::updateWatchOnlyColumn);`
`249`	`246`	`}`
`250`	`247`	`}`
`251`	`248`