Remplement and improve /setting in Lua, now called /set

builtin/chatcommands.lua

@@ -1,7 +1,7 @@
 -- Minetest: builtin/chatcommands.lua
 
 --
--- Chat commands
+-- Chat command handler
 --
 
 minetest.chatcommands = {}
@@ -13,7 +13,43 @@ function minetest.register_chatcommand(cmd, def)
 	minetest.chatcommands[cmd] = def
 end
 
--- Register the help command
+minetest.register_on_chat_message(function(name, message)
+	local cmd, param = string.match(message, "/([^ ]+) *(.*)")
+	if not param then
+		param = ""
+	end
+	local cmd_def = minetest.chatcommands[cmd]
+	if cmd_def then
+		if not cmd_def.func then
+			-- This is a C++ command
+			return false
+		else
+			local has_privs, missing_privs = minetest.check_player_privs(name, cmd_def.privs)
+			if has_privs then
+				cmd_def.func(name, param)
+			else
+				minetest.chat_send_player(name, "You don't have permission to run this command (missing privileges: "..table.concat(missing_privs, ", ")..")")
+			end
+			return true -- handled chat message
+		end
+	end
+	return false
+end)
+
+--
+-- Chat commands
+--
+
+-- Register C++ commands without functions
+minetest.register_chatcommand("me", {params = nil, description = "chat action (eg. /me orders a pizza)"})
+minetest.register_chatcommand("status", {description = "print server status line"})
+minetest.register_chatcommand("shutdown", {params = "", description = "shutdown server", privs = {server=true}})
+minetest.register_chatcommand("clearobjects", {params = "", description = "clear all objects in world", privs = {server=true}})
+minetest.register_chatcommand("time", {params = "<0...24000>", description = "set time of day", privs = {settime=true}})
+minetest.register_chatcommand("ban", {params = "<name>", description = "ban IP of player", privs = {ban=true}})
+minetest.register_chatcommand("unban", {params = "<name/ip>", description = "remove IP ban", privs = {ban=true}})
+
+-- Register other commands
 minetest.register_chatcommand("help", {
 	privs = {},
 	params = "(nothing)/all/privs/<cmd>",
@@ -58,18 +94,6 @@ minetest.register_chatcommand("help", {
 		end
 	end,
 })
-
--- Register C++ commands without functions
-minetest.register_chatcommand("me", {params = nil, description = "chat action (eg. /me orders a pizza)"})
-minetest.register_chatcommand("status", {description = "print server status line"})
-minetest.register_chatcommand("shutdown", {params = "", description = "shutdown server", privs = {server=true}})
-minetest.register_chatcommand("setting", {params = "<name> = <value>", description = "set line in configuration file", privs = {server=true}})
-minetest.register_chatcommand("clearobjects", {params = "", description = "clear all objects in world", privs = {server=true}})
-minetest.register_chatcommand("time", {params = "<0...24000>", description = "set time of day", privs = {settime=true}})
-minetest.register_chatcommand("ban", {params = "<name>", description = "ban IP of player", privs = {ban=true}})
-minetest.register_chatcommand("unban", {params = "<name/ip>", description = "remove IP ban", privs = {ban=true}})
-
--- Register some other commands
 minetest.register_chatcommand("privs", {
 	params = "<name>",
 	description = "print out privileges of player",
@@ -272,31 +296,37 @@ minetest.register_chatcommand("teleport", {
 	end,
 })
 
---
+minetest.register_chatcommand("set", {
--- Builtin chat handler
+	params = "[-n] <name> <value> | <name>",
---
+	description = "set or read server configuration setting",
-
+	privs = {server=true},
-minetest.register_on_chat_message(function(name, message)
+	func = function(name, param)
-	local cmd, param = string.match(message, "/([^ ]+) *(.*)")
+		local arg, setname, setvalue = string.match(param, "(-[n]) ([^ ]+) (.+)")
-	if not param then
+		if arg and arg == "n" and setname and setvalue then
-		param = ""
+			minetest.setting_set(setname, setvalue)
-	end
+			minetest.chat_send_player(name, setname.." = "..setvalue)
-	local cmd_def = minetest.chatcommands[cmd]
+			return
-	if cmd_def then
-		if not cmd_def.func then
-			-- This is a C++ command
-			return false
-		else
-			local has_privs, missing_privs = minetest.check_player_privs(name, cmd_def.privs)
-			if has_privs then
-				cmd_def.func(name, param)
-			else
-				minetest.chat_send_player(name, "You don't have permission to run this command (missing privileges: "..table.concat(missing_privs, ", ")..")")
-			end
-			return true -- handled chat message
 		end
-	end
+		local setname, setvalue = string.match(param, "([^ ]+) (.+)")
-	return false
+		if setname and setvalue then
-end)
+			if not minetest.setting_get(setname) then
-
+				minetest.chat_send_player(name, "Failed. Use '/set -n <name> <value>' to create a new setting.")
+				return
+			end
+			minetest.setting_set(setname, setvalue)
+			minetest.chat_send_player(name, setname.." = "..setvalue)
+			return
+		end
+		local setname = string.match(param, "([^ ]+)")
+		if setname then
+			local setvalue = minetest.setting_get(setname)
+			if not setvalue then
+				setvalue = "<not set>"
+			end
+			minetest.chat_send_player(name, setname.." = "..setvalue)
+			return
+		end
+		minetest.chat_send_player(name, "Invalid parameters (see /help set)")
+	end,
+})
 

doc/lua_api.txt

@@ -516,6 +516,7 @@ minetest.register_authentication_handler(handler)
 ^ See minetest.builtin_auth_handler in builtin.lua for reference
 
 Setting-related:
+minetest.setting_set(name, value)
 minetest.setting_get(name) -> string or nil
 minetest.setting_getbool(name) -> boolean value or nil
 minetest.add_to_creative_inventory(itemstring)

src/scriptapi.cpp

@@ -3800,6 +3800,15 @@ static int l_register_craft(lua_State *L)
 	return 0; /* number of results */
 }
 
+// setting_set(name, value)
+static int l_setting_set(lua_State *L)
+{
+	const char *name = luaL_checkstring(L, 1);
+	const char *value = luaL_checkstring(L, 2);
+	g_settings->set(name, value);
+	return 0;
+}
+
 // setting_get(name)
 static int l_setting_get(lua_State *L)
 {
@@ -4006,6 +4015,7 @@ static const struct luaL_Reg minetest_f [] = {
 	{"register_item_raw", l_register_item_raw},
 	{"register_alias_raw", l_register_alias_raw},
 	{"register_craft", l_register_craft},
+	{"setting_set", l_setting_set},
 	{"setting_get", l_setting_get},
 	{"setting_getbool", l_setting_getbool},
 	{"chat_send_all", l_chat_send_all},

src/servercommand.cpp

@@ -79,30 +79,6 @@ void cmd_shutdown(std::wostringstream &os,
 	ctx->flags |= SEND_TO_OTHERS;
 }
 
-void cmd_setting(std::wostringstream &os,
-	ServerCommandContext *ctx)
-{
-	if(!ctx->server->checkPriv(ctx->player->getName(), "server"))
-	{
-		os<<L"-!- You don't have permission to do that";
-		return;
-	}
-
-	/*std::string confline = wide_to_narrow(
-			ctx->parms[1] + L" = " + ctx->params[2]);*/
-
-	std::string confline = wide_to_narrow(ctx->paramstring);
-	
-	actionstream<<ctx->player->getName()
-			<<" sets: "<<confline<<std::endl;
-
-	g_settings->parseConfigLine(confline);
-	
-	ctx->server->saveConfig();
-
-	os<< L"-!- Setting changed and configuration saved.";
-}
-
 void cmd_banunban(std::wostringstream &os, ServerCommandContext *ctx)
 {
 	if(!ctx->server->checkPriv(ctx->player->getName(), "ban"))
@@ -194,8 +170,6 @@ std::wstring processServerCommand(ServerCommandContext *ctx)
 		cmd_time(os, ctx);
 	else if(ctx->parms[0] == L"shutdown")
 		cmd_shutdown(os, ctx);
-	else if(ctx->parms[0] == L"setting")
-		cmd_setting(os, ctx);
 	else if(ctx->parms[0] == L"ban" || ctx->parms[0] == L"unban")
 		cmd_banunban(os, ctx);
 	else if(ctx->parms[0] == L"me")