delay loading config file

bacon/OscListener.py

@@ -31,8 +31,8 @@ def beautify_lisp_string(in_string):
 
 
 class OscCommentMacroListener(CommentMacroListener):
-    def __init__(self, servers):
-        self.osc = HogNet(servers)
+    def __init__(self):
+        self.osc = None
 
     def exitWait(self, ctx: CommentMacroParser.WaitContext):
         logging.info("Waiting " + str(ctx.number().value) + " seconds.")

bacon/hog4.py

@@ -3,7 +3,7 @@ from pythonosc import osc_message_builder
 from time import sleep
 
 
-class HogNet():
+class HogNet:
     # button state constants
     buttonDOWN = 1
     buttonUP = 0

bacon/script.py

@@ -20,12 +20,13 @@ class SyntaxErrorListener(ErrorListener):
         raise SyntaxError("line "+str(line)+":"+str(column)+" "+msg)
 
 
+def loadConfig(file='server.cfg'):
     # empty server dictionary
     servers = {}
 
     # open config file
     config = configparser.ConfigParser(allow_no_value=True)
-config.read('server.cfg')
+    config.read(file)
 
     # set up each hog device
     for name in config.get('network', 'hogs').split(','):
@@ -42,19 +43,12 @@ for name in config.get('network', 'hogs').split(','):
         except KeyError as e:
             print('Error configuring net#', net, e)
             continue
-
-
-# clear temp variables off the stack
-try:
-    del ip, port, net
-    del server, config
-except NameError as e:
-    print('failed to release memory', e)
+    return servers
 
 
 # init reusable walker and listener
 walker = ParseTreeWalker()
-listener = OscCommentMacroListener(servers)
+listener = OscCommentMacroListener()
 
 
 # main handler for processing input

bs.py

@@ -6,13 +6,17 @@
 
 import logging
 import sys
-from bacon.script import comment
+from bacon.script import comment, listener
+from bacon.script import loadConfig as loadBsConfig
+from bacon.hog4 import HogNet
 
 
 # setup logging
 logger = logging.getLogger()
 logger.setLevel(logging.DEBUG)
 
+listener.osc = HogNet(loadBsConfig('server.cfg'))
+
 # handle user input if run directly
 if __name__ == '__main__':
     if len(sys.argv) > 1: