Add --host and --port options to specify what Redis to use.

bin/rqinfo

@@ -3,6 +3,8 @@
 import os
 import time
 import argparse
+import redis
+from redis.exceptions import ConnectionError
 from rq import use_redis, Queue, Worker
 from rq.utils import gettermsize, make_colorizer
 
@@ -113,6 +115,8 @@ def show_workers(args):
 
 def parse_args():
     parser = argparse.ArgumentParser(description='awesome')
+    parser.add_argument('--host', '-H', default='localhost', help='The Redis hostname (default: localhost)')
+    parser.add_argument('--port', '-p', type=int, default=6379, help='The Redis portnumber (default: 6379)')
 
     parent_parser = argparse.ArgumentParser(add_help=False)
     parent_parser.add_argument('--interval', '-i', metavar='N', type=float, default=0, help='Updates stats every N seconds (default: don\'t poll)')
@@ -133,8 +137,14 @@ def parse_args():
 
 def main():
     args = parse_args()
-    use_redis()
+
+    # Setup connection to Redis
+    redis_conn = redis.Redis(host=args.host, port=args.port)
+    use_redis(redis_conn)
+    try:
         args.func(args)
+    except ConnectionError as e:
+        print(e)
 
 if __name__ == '__main__':
     main()