refactor: Enforce C-str fmt strings in WalletLogPrintf()

Author: MarcoFalke

contrib/devtools/bitcoin-tidy/example_logprintf.cpp

@@ -37,9 +37,9 @@ class CWallet
 
 public:
     template <typename... Params>
-    void WalletLogPrintf(std::string fmt, Params... parameters) const
+    void WalletLogPrintf(const char* fmt, Params... parameters) const
     {
-        LogPrintf(("%s " + fmt).c_str(), GetDisplayName(), parameters...);
+        LogPrintf(("%s " + std::string{fmt}).c_str(), GetDisplayName(), parameters...);
     };
 };
 

src/wallet/scriptpubkeyman.h

@@ -249,9 +249,10 @@ class ScriptPubKeyMan
     virtual std::unordered_set<CScript, SaltedSipHasher> GetScriptPubKeys() const { return {}; };
 
     /** Prepends the wallet name in logging output to ease debugging in multi-wallet use cases */
-    template<typename... Params>
-    void WalletLogPrintf(std::string fmt, Params... parameters) const {
-        LogPrintf(("%s " + fmt).c_str(), m_storage.GetDisplayName(), parameters...);
+    template <typename... Params>
+    void WalletLogPrintf(const char* fmt, Params... parameters) const
+    {
+        LogPrintf(("%s " + std::string{fmt}).c_str(), m_storage.GetDisplayName(), parameters...);
     };
 
     /** Watch-only address added */

src/wallet/wallet.cpp

@@ -2319,7 +2319,7 @@ OutputType CWallet::TransactionChangeType(const std::optional<OutputType>& chang
 void CWallet::CommitTransaction(CTransactionRef tx, mapValue_t mapValue, std::vector<std::pair<std::string, std::string>> orderForm)
 {
     LOCK(cs_wallet);
-    WalletLogPrintf("CommitTransaction:\n%s", tx->ToString());
+    WalletLogPrintf("CommitTransaction:\n%s", tx->ToString()); // NOLINT(bitcoin-unterminated-logprintf)
 
     // Add tx to wallet, because if it has change it's also ours,
     // otherwise just for transaction history.

src/wallet/wallet.h

@@ -890,9 +890,10 @@ class CWallet final : public WalletStorage, public interfaces::Chain::Notificati
     };
 
     /** Prepends the wallet name in logging output to ease debugging in multi-wallet use cases */
-    template<typename... Params>
-    void WalletLogPrintf(std::string fmt, Params... parameters) const {
-        LogPrintf(("%s " + fmt).c_str(), GetDisplayName(), parameters...);
+    template <typename... Params>
+    void WalletLogPrintf(const char* fmt, Params... parameters) const
+    {
+        LogPrintf(("%s " + std::string{fmt}).c_str(), GetDisplayName(), parameters...);
     };
 
     /** Upgrade the wallet */

test/lint/run-lint-format-strings.py

@@ -20,10 +20,10 @@
     ("src/clientversion.cpp", "strprintf(_(COPYRIGHT_HOLDERS).translated, COPYRIGHT_HOLDERS_SUBSTITUTION)"),
     ("src/test/translation_tests.cpp", "strprintf(format, arg)"),
     ("src/validationinterface.cpp", "LogPrint(BCLog::VALIDATION, fmt \"\\n\", __VA_ARGS__)"),
-    ("src/wallet/wallet.h",  "WalletLogPrintf(std::string fmt, Params... parameters)"),
-    ("src/wallet/wallet.h", "LogPrintf((\"%s \" + fmt).c_str(), GetDisplayName(), parameters...)"),
-    ("src/wallet/scriptpubkeyman.h",  "WalletLogPrintf(std::string fmt, Params... parameters)"),
-    ("src/wallet/scriptpubkeyman.h", "LogPrintf((\"%s \" + fmt).c_str(), m_storage.GetDisplayName(), parameters...)"),
+    ("src/wallet/wallet.h", "WalletLogPrintf(const char* fmt, Params... parameters)"),
+    ("src/wallet/wallet.h", "LogPrintf((\"%s \" + std::string{fmt}).c_str(), GetDisplayName(), parameters...)"),
+    ("src/wallet/scriptpubkeyman.h", "WalletLogPrintf(const char* fmt, Params... parameters)"),
+    ("src/wallet/scriptpubkeyman.h", "LogPrintf((\"%s \" + std::string{fmt}).c_str(), m_storage.GetDisplayName(), parameters...)"),
 ]