Added rofl mod and updated SQLite Extract Script

- Added rofl (you don't need to enable it)
 - SQLextract.py updated

mods/rofl/init.lua

@@ -0,0 +1,89 @@
+----------------------------
+-- Rollbacks Out of FiLes.
+-- ROFL
+--
+
+rofl = {}
+rofl.func = {}
+rofl.datas = {}
+rofl.datas.filepath = minetest.get_worldpath() .. "/rollback/"
+rofl.queue = {}
+
+local function none(v)
+	if not v or v == "None" then
+		return nil
+	else
+		return v
+	end
+end
+
+minetest.register_chatcommand("rofl", {
+	description = "Save MFF",
+	privs = {server = true},
+	func = function(name)
+		-- Alert
+		minetest.chat_send_all("*** Server Freezing")
+
+		-- The main loop
+		local i = 0
+		local vm = minetest.get_voxel_manip()
+		while true do
+			local file = io.open(rofl.datas.filepath .. "/database-output." .. i .. ".txt", "r")
+			if not file then
+				break
+			end
+			-- [
+			--	id=155,actor=Mg,type=1;
+			--	list=None,index=None,add=None,stacknode=None,stackquantity=None,nodemeta=None;
+			--	x=-18,y=29,z=31;
+			--	oldnode=default:stonebrick,oldparam1=0,oldparam2=None,oldmeta=None;
+			--	newnode=air,newparam1=13,newparam2=None,newmeta=None
+			-- ]
+			for fields in file:lines() do
+				local id = tonumber(string.sub(fields, string.find(fields, "id=")+string.len("id="), string.find(fields, ",actor")-1))
+				local actor = string.sub(fields, string.find(fields, "actor=")+string.len("actor="), string.find(fields, ",type")-1)
+				local action_type = tonumber(string.sub(fields, string.find(fields, "type=")+string.len("type="), string.find(fields, ";list")-1))
+
+				local list = none(string.sub(fields, string.find(fields, "list=")+string.len("list="), string.find(fields, ",index")-1))
+				local index = none(tonumber(string.sub(fields, string.find(fields, "index=")+string.len("index="), string.find(fields, ",add")-1)))
+				local add = none(tonumber(string.sub(fields, string.find(fields, "add=")+string.len("add="), string.find(fields, ",stacknode")-1)))
+				local stacknode = none(string.sub(fields, string.find(fields, "stacknode=")+string.len("stacknode="), string.find(fields, ",stackquantity")-1))
+				local stackquantity = none(tonumber(string.sub(fields, string.find(fields, "stackquantity=")+string.len("stackquantity="), string.find(fields, ",nodemeta")-1)))
+				local nodemeta = none(string.sub(fields, string.find(fields, "nodemeta=")+string.len("nodemeta="), string.find(fields, ";x=")-1))
+
+				local x = none(tonumber(string.sub(fields, string.find(fields, ";x=")+string.len(";x="), string.find(fields, ",y=")-1)))
+				local y = none(tonumber(string.sub(fields, string.find(fields, ",y=")+string.len(",y="), string.find(fields, ",z=")-1)))
+				local z = none(tonumber(string.sub(fields, string.find(fields, ",z=")+string.len(",z="), string.find(fields, ";oldnode=")-1)))
+
+				local oldnode = none(string.sub(fields, string.find(fields, "oldnode=")+string.len("oldnode="), string.find(fields, ",oldparam1")-1))
+				local oldparam1 = none(tonumber(string.sub(fields, string.find(fields, "oldparam1=")+string.len("oldparam1="), string.find(fields, ",oldparam2")-1)))
+				local oldparam2 = none(tonumber(string.sub(fields, string.find(fields, "oldparam2=")+string.len("oldparam2="), string.find(fields, ",oldmeta=")-1)))
+				--local oldmeta
+
+				local newnode = none(string.sub(fields, string.find(fields, "newnode=")+string.len("newnode="), string.find(fields, ",newparam1")-1))
+				local newparam1 = none(tonumber(string.sub(fields, string.find(fields, "newparam1=")+string.len("newparam1="), string.find(fields, ",newparam2")-1)))
+				local newparam2 = none(tonumber(string.sub(fields, string.find(fields, "newparam2=")+string.len("newparam2="), string.find(fields, ",newmeta=")-1)))
+				--local newmeta
+
+				if action_type == 1 then -- TYPE_SETNODE
+					local forced = minetest.forceload_block({x = x, y = y, z = z})
+					if forced then
+						minetest.set_node({x = x, y = y, z = z}, {name = newnode, param1 = newparam1, param2 = newparam2})
+						minetest.forceload_free_block({x = x, y = y, z = z})
+					else
+						minetest.log("error", "[ROFL] Couldn't forceplace block " .. minetest.pos_to_string({x = x, y = y, z = z}))
+					end
+
+				elseif action_type == 2 then -- TYPE_MODIFY_INVENTORY_STACK
+
+
+				else -- TYPE_NOTHING
+					print("W.T.F. is type " .. (action_type or "nil"))
+
+				end
+			end
+			i = i + 1
+		end
+		minetest.chat_send_all("*** Server Up")
+	end,
+})

other_things/scripts/SQLextract.py

@@ -45,13 +45,13 @@ class Convert_id(object):
 		if self.__players.has_key(player_id):
 			return self.__players[player_id]
 		else:
-			return("")
+			return None
 
 	def get_node_name(self, node_id):
 		if self.__nodes.has_key(node_id):
 			return self.__nodes[node_id]
 		else:
-			return("")
+			return None
 
 ########################################################################
 ## Utilities
@@ -64,7 +64,7 @@ def ston(a):
 	if a:
 		return str(a)
 	else:
-		return ""
+		return None
 
 def select_all_nodes(startstamp, endstamp):
 	try:
@@ -75,7 +75,7 @@ def select_all_nodes(startstamp, endstamp):
 		print(err)
 		sys.exit(1)
 	try:
-		cur.execute("SELECT * FROM action WHERE timestamp >=:startstamp AND timestamp < :endstamp", {"startstamp":startstamp, "endstamp":endstamp})
+		cur.execute("SELECT * FROM action WHERE (NOT nodeMeta OR newNode) AND timestamp >=:startstamp AND timestamp < :endstamp", {"startstamp":startstamp, "endstamp":endstamp})
 	except sqlite3.OperationalError as err:
 		print(err)
 		sys.exit(1)
@@ -96,7 +96,7 @@ def readU32(strm):
 
 def decode(chaine):
 	if not chaine :
-		return "[]"
+		return None
 	else:
 		strm = StringIO(chaine)
 		table = "["
@@ -114,7 +114,7 @@ def decode(chaine):
 			# Heureusement leur mode d'escape est quasi le même en Python que Lua
 			table += '%s="%s"' % (key, val.encode('string-escape').replace('"', '\\"'))
 			if n != nEntries-1:
-				table += ", "
+				table += ","
 		table += "]"
 		return table
 
@@ -122,33 +122,33 @@ def decode(chaine):
 
 def to_table(node):
 	# Init bracket and basic datas
-	table = '['
+	table = "["
 	table += 'id=%d' % node[0]
-	table += ',actor="%s"' % Id.get_player_name(node[1])
+	table += ',actor=%s' % Id.get_player_name(node[1])
 	table += ',type=%d' % node[3]
 	# Inventory Manipulation
-	table += ';list="%s"' % ston(node[4])
+	table += ';list=%s' % node[4]
-	table += ',index="%s"' % ston(node[5])
+	table += ',index=%s' % node[5]
-	table += ',add="%s"' % ston(node[6])
+	table += ',add=%s' % node[6]
-	table += ',stacknode="%s"' % Id.get_node_name(node[7])
+	table += ',stacknode=%s' % Id.get_node_name(node[7])
-	table += ',stackquantity="%s"' % ston(node[8])
+	table += ',stackquantity=%s' % node[8]
 	table += ',nodemeta=%s' % node[9]
 	# Position
-	table += ';x=%s, y=%s, z=%s' % (node[10], node[11], node[12])
+	table += ';x=%s,y=%s,z=%s' % (node[10], node[11], node[12])
 	# Old node
-	table += ';oldnode="%s"' % Id.get_node_name(node[13])
+	table += ';oldnode=%s' % Id.get_node_name(node[13])
-	table += ',oldparam1="%s"' % node[14]
+	table += ',oldparam1=%s' % node[14]
-	table += ',oldparam2="%s"' % ston(node[15])
+	table += ',oldparam2=%s' % ston(node[15])
 	table += ',oldmeta=%s' % decode(node[16])
 	# New node
-	table += ';newnode="%s"' % Id.get_node_name(node[17])
+	table += ';newnode=%s' % Id.get_node_name(node[17])
-	table += ',newparam1="%s"' % ston(node[18])
+	table += ',newparam1=%s' % ston(node[18])
-	table += ',newparam2="%s"' % ston(node[19])
+	table += ',newparam2=%s' % ston(node[19])
 	table += ',newmeta=%s' % decode(node[20])
 	# Ending
 	table += ']\n'
 	return (table)
-	
+
 def write_list(nodes, i):
 	try:
 		name = "rollback/database-output.%s.txt" % i