(svn r10462) -Add: a command dumper/loader that could be enabled compile-time and server side only to aid debugging some desyncs, i.e. dump the stream of commands so it could be replayed in exactly the same way later. This should primarily be used to make desyncs more easily reproducable, so it can be properly debugged.

src/date.cpp

@@ -13,6 +13,9 @@
 #include "network/network_server.h"
 #include "functions.h"
 #include "currency.h"
+#ifdef DEBUG_DUMP_COMMANDS
+#include "saveload.h"
+#endif
 
 Year      _cur_year;
 Month     _cur_month;
@@ -259,6 +262,12 @@ void IncreaseDate()
 
 	/* yes, call various monthly loops */
 	if (_game_mode != GM_MENU) {
+#ifdef DEBUG_DUMP_COMMANDS
+		char name[MAX_PATH];
+		snprintf(name, lengthof(name), "dmp_cmds_%d.sav", _date);
+		SaveOrLoad(name, SL_SAVE, AUTOSAVE_DIR);
+		debug_dump_commands("ddc:save:%s\n", name);
+#endif /* DUMP_COMMANDS */
 		if (_opt.autosave != 0 && (_cur_month % _autosave_months[_opt.autosave]) == 0) {
 			_do_autosave = true;
 			RedrawAutosave();