X-Git-Url: https://plomlompom.com/repos/berlin_corona.txt?a=blobdiff_plain;f=plomrogue-server.py;h=67d2259dc9f33aef4737f5a10056063704ec2488;hb=a654b8d4a7c61de200924bafe8632e5ed7ac61e2;hp=012359752506d2bfbcb63b5a92bf78a15d5c0d3d;hpb=013fab6ba005e8c553b51849d845b7da3d0eb2e4;p=plomrogue

diff --git a/plomrogue-server.py b/plomrogue-server.py
index 0123597..67d2259 100755
--- a/plomrogue-server.py
+++ b/plomrogue-server.py
@@ -1,15 +1,10 @@
 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.
 
@@ -36,25 +31,49 @@ def setup_server_io(io_db):
 
 def cleanup_server_io(io_db):
     """Close and remove all files open in IO files DB."""
-    if "file_out" in io_db:
-        io_db["file_out"].close()
-        os.remove(io_db["path_out"])
-    if "file_in" in io_db:
-        io_db["file_in"].close()
-        os.remove(io_db["path_in"])
-    if "file_worldstate" in io_db:
-        io_db["file_worldstate"].close()
-        os.remove(io_db["path_worldstate"])
+    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, path_recordfile):
+    """"""
+    print("Input: " + cmd)
+    tokens = shlex.split(cmd, comments=True)
+    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, path_recordfile)
+    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."""
+    file = open(path_recordfile, "a")
+    file.write(cmd + "\n")
+    file.close()
+
 
 
 io_db = {}
@@ -62,26 +81,26 @@ try:
     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.")
+    opts, unknown = parser.parse_known_args()
     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):
+    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(path_recordfile, os.F_OK):
+            raise SystemExit("No record file found to replay.")
+    elif os.access(path_savefile, os.F_OK):
         print(open(path_savefile, "r").read())
     else:
-        msg = "MAKE_WORLD " + str(int(time.time()))
-        print(msg)
-except SystemExit:
-    pass
-except HandledException as exception:
-    print("Error:")
-    print(exception.args[0])
+        obey("MAKE_WORLD " + str(int(time.time())), io_db, path_recordfile)
+except SystemExit as exit:
+    print("ABORTING: " + exit.args[0])
 except:
     print("SOMETHING WENT WRONG IN UNEXPECTED WAYS")
     raise