delay loading config file

bacon/OscListener.py

@@ -31,8 +31,8 @@ def beautify_lisp_string(in_string):
 
 
 class OscCommentMacroListener(CommentMacroListener):
-    def __init__(self, servers):
+    def __init__(self):
-        self.osc = HogNet(servers)
+        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

@@ -20,41 +20,35 @@ class SyntaxErrorListener(ErrorListener):
         raise SyntaxError("line "+str(line)+":"+str(column)+" "+msg)
 
 
-# empty server dictionary
+def loadConfig(file='server.cfg'):
-servers = {}
+    # empty server dictionary
+    servers = {}
 
-# open config file
+    # open config file
-config = configparser.ConfigParser(allow_no_value=True)
+    config = configparser.ConfigParser(allow_no_value=True)
-config.read('server.cfg')
+    config.read(file)
 
-# set up each hog device
+    # set up each hog device
-for name in config.get('network', 'hogs').split(','):
+    for name in config.get('network', 'hogs').split(','):
-    try:
+        try:
-        # move to config section
+            # move to config section
-        server = config[name.strip().strip('\"')]
+            server = config[name.strip().strip('\"')]
-        # read settings
+            # read settings
-        ip = server.get("ip", "10.0.0.100")
+            ip = server.get("ip", "10.0.0.100")
-        port = server.getint("port", 7001)
+            port = server.getint("port", 7001)
-        net = server.getint("net", 1)
+            net = server.getint("net", 1)
-        # osc clients are added to the dictionary with the net # as the key
+            # osc clients are added to the dictionary with the net # as the key
-        logging.info("Adding Hog device at net# " + str(net))
+            logging.info("Adding Hog device at net# " + str(net))
-        servers[net] = udp_client.SimpleUDPClient(ip, port)
+            servers[net] = udp_client.SimpleUDPClient(ip, port)
-    except KeyError as e:
+        except KeyError as e:
-        print('Error configuring net#', net, e)
+            print('Error configuring net#', net, e)
-        continue
+            continue
-
+    return servers
-
-# clear temp variables off the stack
-try:
-    del ip, port, net
-    del server, config
-except NameError as e:
-    print('failed to release memory', e)
 
 
 # init reusable walker and listener
 walker = ParseTreeWalker()
-listener = OscCommentMacroListener(servers)
+listener = OscCommentMacroListener()
 
 
 # main handler for processing input
@@ -78,4 +72,4 @@ def comment(text):
         walker.walk(listener, tree)
     except SyntaxError as e:
         logging.debug(e)     # antlr internal listener prints the error
-#                           # log it to the debug logging anyway
+#                            # log it to the debug logging anyway

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: