From d83bea42d1f0ffb0899a6de3556c489543468995 Mon Sep 17 00:00:00 2001
From: Andrew Chow <achow101-github@achow101.com>
Date: Wed, 13 Oct 2021 18:45:39 -0400
Subject: [PATCH] wallettool: Don't create CWallet when dumping DB

It's not necessary to set up an entire CWallet just so we can get access
to the WalletDatabase and read the records. Instead we can go one level
lower and make just a WalletDatabase.
---
 src/wallet/dump.cpp       |  7 ++-----
 src/wallet/dump.h         |  5 +++--
 src/wallet/wallettool.cpp | 11 ++++++++---
 3 files changed, 13 insertions(+), 10 deletions(-)

diff --git a/src/wallet/dump.cpp b/src/wallet/dump.cpp
index 3ac5cf03b19..7a36910dc12 100644
--- a/src/wallet/dump.cpp
+++ b/src/wallet/dump.cpp
@@ -8,6 +8,7 @@
 #include <util/fs.h>
 #include <util/translation.h>
 #include <wallet/wallet.h>
+#include <wallet/walletdb.h>
 
 #include <algorithm>
 #include <fstream>
@@ -20,7 +21,7 @@ namespace wallet {
 static const std::string DUMP_MAGIC = "BITCOIN_CORE_WALLET_DUMP";
 uint32_t DUMP_VERSION = 1;
 
-bool DumpWallet(const ArgsManager& args, CWallet& wallet, bilingual_str& error)
+bool DumpWallet(const ArgsManager& args, WalletDatabase& db, bilingual_str& error)
 {
     // Get the dumpfile
     std::string dump_filename = args.GetArg("-dumpfile", "");
@@ -44,7 +45,6 @@ bool DumpWallet(const ArgsManager& args, CWallet& wallet, bilingual_str& error)
 
     HashWriter hasher{};
 
-    WalletDatabase& db = wallet.GetDatabase();
     std::unique_ptr<DatabaseBatch> batch = db.MakeBatch();
 
     bool ret = true;
@@ -90,9 +90,6 @@ bool DumpWallet(const ArgsManager& args, CWallet& wallet, bilingual_str& error)
     cursor.reset();
     batch.reset();
 
-    // Close the wallet after we're done with it. The caller won't be doing this
-    wallet.Close();
-
     if (ret) {
         // Write the hash
         tfm::format(dump_file, "checksum,%s\n", HexStr(hasher.GetHash()));
diff --git a/src/wallet/dump.h b/src/wallet/dump.h
index 5034f95479a..9b44af922e1 100644
--- a/src/wallet/dump.h
+++ b/src/wallet/dump.h
@@ -14,8 +14,9 @@ struct bilingual_str;
 class ArgsManager;
 
 namespace wallet {
-class CWallet;
-bool DumpWallet(const ArgsManager& args, CWallet& wallet, bilingual_str& error);
+class WalletDatabase;
+
+bool DumpWallet(const ArgsManager& args, WalletDatabase& db, bilingual_str& error);
 bool CreateFromDump(const ArgsManager& args, const std::string& name, const fs::path& wallet_path, bilingual_str& error, std::vector<bilingual_str>& warnings);
 } // namespace wallet
 
diff --git a/src/wallet/wallettool.cpp b/src/wallet/wallettool.cpp
index c8deda89b56..cda344ab19c 100644
--- a/src/wallet/wallettool.cpp
+++ b/src/wallet/wallettool.cpp
@@ -193,10 +193,15 @@ bool ExecuteWalletToolFunc(const ArgsManager& args, const std::string& command)
         DatabaseOptions options;
         ReadDatabaseArgs(args, options);
         options.require_existing = true;
-        const std::shared_ptr<CWallet> wallet_instance = MakeWallet(name, path, options);
-        if (!wallet_instance) return false;
+        DatabaseStatus status;
         bilingual_str error;
-        bool ret = DumpWallet(args, *wallet_instance, error);
+        std::unique_ptr<WalletDatabase> database = MakeDatabase(path, options, status, error);
+        if (!database) {
+            tfm::format(std::cerr, "%s\n", error.original);
+            return false;
+        }
+
+        bool ret = DumpWallet(args, *database, error);
         if (!ret && !error.empty()) {
             tfm::format(std::cerr, "%s\n", error.original);
             return ret;