add default args to work with snap pkg

partybot/pnutbot.py

@@ -9,6 +9,7 @@ import json
 import random
 import re
 import argparse
+import os
 
 from sqlalchemy import create_engine, and_
 from sqlalchemy.orm import scoped_session, sessionmaker
@@ -20,6 +21,12 @@ _shutdown = threading.Event()
 _connected = threading.Event()
 _error = threading.Event()
 
+logger = logging.getLogger()
+config = {}
+db_session = None
+
+SNAP_DATA = os.environ.get('SNAP_DATA')
+
 def subscribe(connection_id):
     url = f"https://api.pnut.io/v1/channels/{config['CHANNEL']}/messages"
     url += "?connection_id=" + connection_id
@@ -353,7 +360,8 @@ def on_open(ws):
     t.start()
 
 def main():
-    logger = logging.getLogger()
+    global config
+    global db_session
     a_parser = argparse.ArgumentParser()
     a_parser.add_argument(
         '-d', action='store_true', dest='debug',
@@ -363,6 +371,10 @@ def main():
         '-c', '--config', default="config.yaml",
         help="configuration file"
     )
+    a_parser.add_argument(
+        '-s', '--store', default="store.db",
+        help="database store url"
+    )
     args = a_parser.parse_args()
 
     if args.debug:
@@ -370,10 +382,17 @@ def main():
     else:
         logging.basicConfig(level=logging.INFO)
 
-    with open(args.config, 'rb') as config_file:
+    if SNAP_DATA is None:
+        filename = args.config
+        db_url = args.store
+    else:
+        filename = SNAP_DATA + '/config.yaml'
+        db_url = 'sqlite:///' + SNAP_DATA + '/store.db'
+
+    with open(filename, 'rb') as config_file:
         config = yaml.load(config_file, Loader=yaml.SafeLoader)
 
-    engine = create_engine(config['SERVICE_DB'])
+    engine = create_engine(db_url)
     db_session = scoped_session(sessionmaker(bind=engine))
     Base.query = db_session.query_property()
     Base.metadata.create_all(bind=engine)

setup.py

@@ -2,6 +2,7 @@ from setuptools import setup
 
 setup(
     name='partybot',
+    version='0.2.0',
     py_modules=['partybot.models','partybot.pnutbot'],
     install_requires=[
         'PyYAML',