+def obey(cmd, io_db, prefix, replay_file=None, do_record=False):
+ """"""
+ server_test(io_db)
+ print("input " + prefix + ": " + cmd)
+ try:
+ tokens = shlex.split(cmd, comments=True)
+ except ValueError as err:
+ print("Can't tokenize command string: " + str(err) + ".")
+ return
+ if 0 == len(tokens):
+ pass
+ elif "PING" == tokens[0] and 1 == len(tokens):
+ io_db["file_out"].write("PONG\n")
+ io_db["file_out"].flush()
+ elif "QUIT" == tokens[0] and 1 == len(tokens):
+ if do_record:
+ record("# " + cmd, io_db)
+ raise SystemExit("received QUIT command")
+ elif "MAKE_WORLD" == tokens[0] and 2 == len(tokens):
+ if replay_file:
+ print("Due to replay mode, reading command as 'go on in record'.")
+ line = replay_file.readline()
+ if len(line) > 0:
+ obey(line.rstrip(), io_db,
+ replay_file.prefix + str(file.line_n))
+ file.line_n = file.line_n + 1
+ else:
+ print("Reached end of record file.")
+ else:
+ print("I would generate a new world now, if only I knew how.")
+ if do_record:
+ record(cmd, io_db)
+ else:
+ print("Invalid command/argument, or bad number of tokens.")
+
+
+def record(cmd, io_db):
+ """Append cmd string plus newline to file at path_recordfile. (Atomic.)"""
+ # This misses some optimizations from the original record(), namely only
+ # finishing the atomic write with expensive flush() and fsync() every 15
+ # seconds unless explicitely forced. Implement as needed.
+ path_tmp = io_db["path_record"] + io_db["tmp_suffix"]
+ if os.access(io_db["path_record"], os.F_OK):
+ shutil.copyfile(io_db["path_record"], path_tmp)
+ file = open(path_tmp, "a")
+ file.write(cmd + "\n")
+ file.flush()
+ os.fsync(file.fileno())
+ file.close()
+ if os.access(io_db["path_record"], os.F_OK):
+ os.remove(io_db["path_record"])
+ os.rename(path_tmp, io_db["path_record"])
+
+
+def obey_lines_in_file(path, name, do_record=False):
+ """Call obey() on each line of path's file, use name in input prefix."""
+ file = open(path, "r")
+ line_n = 1
+ for line in file.readlines():
+ obey(line.rstrip(), io_db, name + "file line " + str(line_n),
+ do_record=do_record)
+ line_n = line_n + 1
+ file.close()
+
+
+def parse_command_line_arguments():
+ """Return settings values read from command line arguments."""
+ parser = argparse.ArgumentParser()