Config file handling

.gitignore

@@ -4,3 +4,4 @@
 *.pyo
 *~
 *.o
+seopardy.conf

config.py

@@ -0,0 +1,36 @@
+from __future__ import print_function
+
+import sys
+
+def _config_error(msg):
+	print("Configuration error: %s" % (msg,), file=sys.stderr)
+	sys.exit(1)
+
+def _check_missing_keys(conf, sec, mandatory, users_choice=[]):
+	#d = conf[sec] if sec is not None else conf
+	#if sec is None:
+	#	sec = "main"
+
+	d = conf
+
+	allowed = mandatory + users_choice
+
+	for key in d.iterkeys():
+		if key not in allowed:
+			_config_error("Key %s is not an allowed config key in section %s (allowed are %s)" % (key, sec, ", ".join(allowed)))
+
+	for key in mandatory:
+		if key not in d.iterkeys():
+			_config_error("Key %s is not present in section %s but mandatory" % (key, sec,))
+
+
+def check_config(conf):
+	main_keys = ["music", "savedir", "playerInput"]
+	music_keys = ["startSong", "questionSong"]
+
+	_check_missing_keys(conf, "main", main_keys)
+	_check_missing_keys(conf["music"], "music", music_keys)
+
+	if conf["playerInput"]:
+		for i, inp in enumerate(conf["playerInput"], 1):
+			_check_missing_keys(inp, "playerInput %d" % i, ["Type"], ["Args"])

seopardy.conf.dist

@@ -0,0 +1,27 @@
+#                                     _       
+#  ___  ___  ___  _ __   __ _ _ __ __| |_   _ 
+# / __|/ _ \/ _ \| '_ \ / _` | '__/ _` | | | |
+# \__ \  __/ (_) | |_) | (_| | | | (_| | |_| |
+# |___/\___|\___/| .__/ \__,_|_|  \__,_|\__, |
+#                |_|                    |___/ 
+# Configuration
+#
+# Basicly you can configure here:
+#   - player inputs
+#   - pathes to theme songs
+#   - path to savedir (gamestate backups while game is running)
+# Note that this is a yamlfile (no tabs -.-)
+
+# path to music, set to null if you don't have the song
+music:
+    startSong:       path/to/theme_song.mp3
+    questionSong:    path/to/question_song.mp3
+
+# change to path, default is /tmp/seopardy/
+savedir: /tmp/seopardy/
+
+# player inputs. look in buttonreader.py for available types
+playerInput:
+# - Type: Fifo
+#   Args:
+#      - /tmp/seopardy_fifo

seopardy.py

@@ -2,21 +2,20 @@
 from __future__ import print_function
 
 import argparse
-import os
+import yaml
 import sys
-#from PySide import QtCore, QtGui
 from PySide import QtGui
 
 from music import MusicBox
 from question import Questions
 from gamestate import GameState
 from game import SeopardyGame
+from config import check_config
 
 def _parser():
 	parser = argparse.ArgumentParser(description="Sebas jeopardy/beopardy clone")
-	parser.add_argument("--fifo", action="store", default="/tmp/seopardy-fifo", help="Name of the fifo to create")
 	parser.add_argument("--gamestate", action="store", default=None, help="Gamestate to load to recover a crashed game")
-	parser.add_argument("--savedir", action="store", default="/tmp/seopardy/", help="Directory where to save the temporary gamestates to, in case of game-crash")
+	parser.add_argument("--conf", action="store", default="seopardy.conf", help="Path to config file")
 	parser.add_argument("questions", action="store", help="Path to questionfile")
 
 	return parser
@@ -25,19 +24,23 @@ if __name__ == '__main__':
 	parser = _parser()
 	args = parser.parse_args()
 
-	fifo = None
-	try:
-		if os.path.exists(args.fifo):
-			os.unlink(args.fifo)
-		os.mkfifo(args.fifo)
-	except OSError as e:
-		print("Error: Could not create fifo: %s" % (str(e),), file=sys.stderr)
-		sys.exit(1)
-
 	questions = Questions(args.questions)
 
 	# start gui
-	app = QtGui.QApplication([])
+	app = QtGui.QApplication([sys.argv[0]])
+
+	# check and load config file
+	config = None
+	try:
+		config = yaml.load(open(args.conf))
+	except IOError as e:
+		print("Error: Could not load config: %s" % (str(e),), file=sys.stderr)
+		sys.exit(1)
+	except yaml.scanner.ScannerError as e:
+		print("Error: Could not parse config file: %s" % (str(e),), file=sys.stderr)
+		sys.exit(1)
+
+	check_config(config)
 
 	# create or load gamestate
 	gamestate = None
@@ -48,12 +51,15 @@ if __name__ == '__main__':
 		except IOError as e:
 			print("Error: Could not load gamestate: %s" % (str(e),), file=sys.stderr)
 			sys.exit(1)
-		gamestate = GameState.load(sstream, args.savedir)
+		gamestate = GameState.load(sstream, config["savedir"])
 	else:
-		gamestate = GameState(args.savedir)
+		gamestate = GameState(config["savedir"])
 
 	# init music box
 	MusicBox.init()
+	for name, path in config["music"].iteritems():
+		if path:
+			MusicBox.add_music(name, path)
 
 	# create board
 	board = SeopardyGame(questions, gamestate)