batcave.py: add argument parsing

batcave.py

@@ -1,5 +1,6 @@
 #!/usr/bin/python
 from __future__ import print_function
+import argparse
 from copy import deepcopy
 import daemon
 import logging
@@ -8,33 +9,45 @@ import time
 
 from ffstatus import *
 
-INTERVAL = 15
-LOGFILE = '/var/log/batcave.log'
+DEFAULT_INTERVAL = 15
 
-DUMMY_MODE = 1
+parser = argparse.ArgumentParser(description='Batman/Alfred Transmission Collection, Aggregation & Value Engine')
+parser.add_argument('--logfile', help='path for log file')
+parser.add_argument('--interval', type=int, default=DEFAULT_INTERVAL, help='data poll interval')
+parser.add_argument('-n', '--no-send', action='store_true', help='Fetch data but don\'t send it')
+parser.add_argument('-A', '--alfred-json', help='executable path for alfred-json')
+parser.add_argument('-B', '--batadv-vis', help='executable path for batadv-vis')
+parser.add_argument('-G', '--graphite-host', help='Graphite host')
+parser.add_argument('--graphite-port', type=int, default=2003, help='Graphite port')
+parser.add_argument('--dashing-url', help='Dashing URL')
+parser.add_argument('--dashing-token', help='Dashing\'s secret update token')
+args = parser.parse_args()
+
+if args.interval < 5:
+	print('A poll interval lower than 5s is not supported.')
+	sys.exit(1)
 
 logger = logging.getLogger()
 logger.setLevel(logging.DEBUG)
-fh = logging.FileHandler(LOGFILE)
-fh.setFormatter(logging.Formatter('%(asctime)s [%(levelname)s] %(message)s', '%Y-%m-%d %H:%M:%S'))
-logger.addHandler(fh)
+
+if not args.logfile is None:
+	fh = logging.FileHandler(args.logfile)
+	fh.setFormatter(logging.Formatter('%(asctime)s [%(levelname)s] %(message)s', '%Y-%m-%d %H:%M:%S'))
+	logger.addHandler(fh)
 
 logger.info('Starting up')
 
 a = AlfredParser()
 b = BatmanParser()
-d = DashingClient('dashing.krombel.de', 'TODO')
-g = GraphitePush('fdca:ffee:ff12:a254::da7a', 2003)
+d = DashingClient(args.dashing_url, args.dashing_token) if not args.dashing_url is None else None
+g = GraphitePush(args.graphite_host, args.graphite_port) if not args.graphite_host is None else None
 data = { }
 
-if DUMMY_MODE:
-	import os
-	mydir = os.path.realpath(os.path.dirname(__file__))
-	a.alfred_json = os.path.join(mydir, 'alfred-json')
-	print('DUMMY.a =', a.alfred_json)
-	b.batadv_vis = os.path.join(mydir, 'batadv_vis')
-	print('DUMMY.b =', b.batadv_vis)
-	g.dont_send = True
+if args.no_send:
+	if not g is None: g.dont_send = True
+
+if not args.alfred_json is None: a.alfred_json = args.alfred_json
+if not args.batadv_vis is None: b.batadv_vis = args.batadv_vis
 
 for i in [ ('AlfredParser', a), ('BatmanParser', b) ]:
 	try:
@@ -58,10 +71,12 @@ with daemon_context:
 			logger.info('Fetched data: {0} ALFRED with {1} BATMAN makes {2} total'.format(len(alfreddata), len(batmandata), len(newdata)))
 
 			logger.debug('Step 2/3: Pushing update data ...')
-			graphitedata = g.push(newdata, ts=ts)
-			d.push(newdata)
+			if not g is None:
+				graphitedata = g.push(newdata, ts=ts)
+				logger.info('Sent ' + str(graphitedata.count('\n')+1) + ' lines to Graphite.')
+			if not d is None:
+				d.push(newdata)
 
-			logger.info('Sent ' + str(graphitedata.count('\n')+1) + ' lines to Graphite.')
 
 			logger.debug('Step 3/3: Merging current data ...')
 			data = dict_merge(data, newdata)
@@ -69,7 +84,8 @@ with daemon_context:
 		except Exception as err:
 			logger.error(str(err))
 
-		time.sleep(INTERVAL)
+		logger.debug('Sleeping for {0} seconds'.format(args.interval))
+		time.sleep(args.interval)
 
 	logger.info('Shutting down')