bitcoin core log patch

core_log.diff

commit 39e9f43014e9aa9383cc792015e91774fa5b792b
Author: willcl-ark <will@256k1.dev>
Date:   Thu Jun 15 09:08:05 2023 +0100

    RPC: add 'log' rpc to set single

diff --git a/src/rpc/node.cpp b/src/rpc/node.cpp
index 3828401642..4f1986695b 100644
--- a/src/rpc/node.cpp
+++ b/src/rpc/node.cpp
@@ -204,6 +204,57 @@ static void EnableOrDisableLogCategories(UniValue cats, bool enable) {
     }
 }
 
+static RPCHelpMan log()
+{
+    return RPCHelpMan{"log",
+            "Set a single log category.\n"
+            "When called without an argument, returns the list of categories with status that are currently being debug logged or not.\n"
+            "When called with arguments, adds or removes the category from debug logging and returns the log category status.\n"
+            "The valid logging categories are: " + LogInstance().LogCategoriesString() + "\n"
+            ,
+                {
+                    {"command", RPCArg::Type::STR, RPCArg::Optional::NO, "The command to enable or disable logging categories (either 'enable' or 'disable')"},
+                    {"category", RPCArg::Type::STR, RPCArg::Optional::NO, "The log category to modify"},
+                },
+                RPCResult{
+                    RPCResult::Type::OBJ_DYN, "", "keys are the logging categories, and values indicates its status",
+                    {
+                        {RPCResult::Type::BOOL, "category", "if being debug logged or not. false:inactive, true:active"},
+                    }
+                },
+                RPCExamples{
+                    HelpExampleCli("log", "enable net")
+                  + HelpExampleRpc("log", "disable mempool")
+                },
+        [&](const RPCHelpMan& self, const JSONRPCRequest& request) -> UniValue
+{
+    std::string command = request.params[0].get_str();
+    std::string category = request.params[1].get_str();
+
+    if (command == "enable") {
+        LogInstance().EnableCategory(category);
+    } else if (command == "disable") {
+        LogInstance().DisableCategory(category);
+    } else {
+        throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid command. Available commands are 'enable' or 'disable'.");
+    }
+    //
+    // Update libevent logging if BCLog::LIBEVENT has changed.
+    if (category == "libevent") {
+        UpdateHTTPServerLogging(LogInstance().WillLogCategory(BCLog::LIBEVENT));
+    }
+
+    UniValue result(UniValue::VOBJ);
+    for (const auto& logCatActive : LogInstance().LogCategoriesList()) {
+        result.pushKV(logCatActive.category, logCatActive.active);
+    }
+
+    return result;
+},
+    };
+}
+
+
 static RPCHelpMan logging()
 {
     return RPCHelpMan{"logging",
@@ -406,6 +457,7 @@ void RegisterNodeRPCCommands(CRPCTable& t)
         {"hidden", &echo},
         {"hidden", &echojson},
         {"hidden", &echoipc},
+        {"hidden", &log},
     };
     for (const auto& c : commands) {
         t.appendCommand(c.name, &c);