X-Git-Url: https://plomlompom.com/repos/?a=blobdiff_plain;f=plomrogue-server.py;h=d9593f854f166196ee4f039c3692e24bff827fc7;hb=0891d236075c217eb7e32a38c8da354a6419a1c3;hp=1e4eda149eaa69451e865ca2dca1d2e0a6366bcb;hpb=0419c055322edc009c80e7bc3b33362d67b5ec50;p=plomrogue diff --git a/plomrogue-server.py b/plomrogue-server.py index 1e4eda1..d9593f8 100755 --- a/plomrogue-server.py +++ b/plomrogue-server.py @@ -1,28 +1,26 @@ import argparse import errno import os +import shlex import time -class HandledException(Exception): - """Feature-less Exception child. Use for expected operational errors.""" - - pass - - def setup_server_io(io_db): """Fill IO files DB with proper file( path)s. Write process IO test string. - Ensure IO files directory at server/. Remove any old in file if found. Set - up new in file (io_db["file_in"]) for reading at io_db["path_in"], and new - out file (io_db["file_out"]) for writing at io_db["path_out"]. Start out - file with process hash line of format PID + " " + floated UNIX time - (io_db["teststring"]). Set worldstate file path io_db["path_worldstate"]. + Decide file paths. Ensure IO files directory at server/. Remove any old in + file if found. Set up new in file (io_db["file_in"]) for reading at + io_db["path_in"], and new out file (io_db["file_out"]) for writing at + io_db["path_out"]. Start out file with process hash line of format PID + + " " + floated UNIX time (io_db["teststring"]). """ io_dir = "server/" io_db["path_in"] = io_dir + "in" io_db["path_out"] = io_dir + "out" io_db["path_worldstate"] = io_dir + "worldstate" + io_db["path_record"] = "record" + io_db["path_save"] = "save" + io_db["path_worldconf"] = "confserver/world" io_db["teststring"] = str(os.getpid()) + " " + str(time.time()) os.makedirs(io_dir, exist_ok=True) io_db["file_out"] = open(io_db["path_out"], "w") @@ -35,53 +33,93 @@ def setup_server_io(io_db): def cleanup_server_io(io_db): - """Close and remove all files in IO files DB.""" - io_db["file_out"].close() - os.remove(io_db["path_out"]) - io_db["file_in"].close() - os.remove(io_db["path_in"]) - if "file_worldstate" in io_db: # This file's only set up - io_db["file_worldstate"].close() # properly when the game - if os.access(io_db["path_worldstate"], os.F_OK): # world is active, which - os.remove(io_db["path_worldstate"]) # is not guaranteed. + """Close and remove all files open in IO files DB.""" + def helper(file_key, path_key): + if file_key in io_db: + io_db[file_key].close() + os.remove(io_db[path_key]) + helper("file_out", "path_out") + helper("file_in", "path_in") + helper("file_worldstate", "path_worldstate") def detect_atomic_leftover(path): - """Raise explained HandledException if file is found at path + "_tmp".""" + """Raise explained SystemExit if file is found at path + "_tmp".""" path_tmp = path + "_tmp" msg = "Found file '" + path_tmp + "' that may be a leftover from an " \ "aborted previous attempt to write '" + path + "'. Aborting until " \ "the matter is resolved by removing it from its current path." if os.access(path_tmp, os.F_OK): - raise HandledException(msg) + raise SystemExit(msg) + + +def obey(cmd, io_db, prefix): + """""" + 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") + elif "QUIT" == tokens[0] and 1 == len(tokens): + record("# " + cmd, path_recordfile) + raise SystemExit("received QUIT command") + elif "MAKE_WORLD" == tokens[0] and 2 == len(tokens): + print("I would generate a new world now, if only I knew how.") + record(cmd, io_db["path_record"]) + else: + print("Invalid command/argument, or bad number of tokens.") + + +def record(cmd, path_recordfile): + """Append cmd string plus newline to file at path_recordfile.""" + # Doesn't yet replace old record() fully. + file = open(path_recordfile, "a") + file.write(cmd + "\n") + file.close() io_db = {} try: - parser = argparse.ArgumentParser(add_help=False) + parser = argparse.ArgumentParser() parser.add_argument('-s', nargs='?', type=int, dest='replay', const=1, action='store') - args, unknown = parser.parse_known_args() - print("Replay: " + str(args.replay)) - print("DUMMY: Obey command-line arguments.") - print("DUMMY: Open files.") setup_server_io(io_db) - print("DUMMY: Run game.") - path_recordfile = "recordfile" - path_savefile = "savefile" - detect_atomic_leftover(path_savefile) - detect_atomic_leftover(path_recordfile) - if os.access(path_savefile, os.F_OK): - print(open(path_savefile, "r").read()) + # print("DUMMY: Run game.") + detect_atomic_leftover(io_db["path_save"]) + detect_atomic_leftover(io_db["path_record"]) + opts, unknown = parser.parse_known_args() + if None != opts.replay: + if opts.replay < 1: + opts.replay = 1 + print("Replay mode. Auto-replaying up to turn " + str(opts.replay) + + " (if so late a turn is to be found).") + if not os.access(io_db["path_record"], os.F_OK): + raise SystemExit("No record file found to replay.") else: - msg = "MAKE_WORLD " + str(int(time.time())) - print(msg) -except HandledException as exception: - print("Error:") - print(exception.args[0]) + if os.access(io_db["path_save"], os.F_OK): + print(open(io_db["path_save"], "r").read()) + else: + if not os.access(io_db["path_worldconf"], os.F_OK): + msg = "No world config file from which to start a new world." + raise SystemExit(msg) + file = open(io_db["path_worldconf"]) + line_n = 1 + for line in file.readlines(): + obey(line.rstrip(), io_db, "worldconfig line " + str(line_n)) + line_n = line_n + 1 + file.close() + obey("MAKE_WORLD " + str(int(time.time())), io_db, "in file") + # print("DUMMY: Run io_loop().") +except SystemExit as exit: + print("ABORTING: " + exit.args[0]) except: print("SOMETHING WENT WRONG IN UNEXPECTED WAYS") raise finally: cleanup_server_io(io_db) - print("DUMMY: (Clean up C heap.)") + # print("DUMMY: (Clean up C heap.)")