Avoid using use_connection, initial queues directly using redis connection

rq/scripts/rq_cli.py

@@ -8,7 +8,7 @@ from __future__ import (absolute_import, division, print_function,
 
 import click
 import redis
-from rq import get_failed_queue, Queue, use_connection
+from rq import get_failed_queue, Queue
 from rq.exceptions import InvalidJobOperationError
 
 from .rqinfo import info
@@ -17,16 +17,21 @@ from .rqinfo import info
 @click.group()
 @click.option('--url', '-u', envvar='URL',
         help='URL describing Redis connection details.')
-def main(url):
+@click.pass_context
+def main(ctx, url):
+    """Entrance of RQ CLI"""
     if url is None:
         url = "redis://localhost:6379/0"
     redis_conn = redis.from_url(url)
-    use_connection(redis_conn)
+
+    ctx.obj = {}
+    ctx.obj['connection'] = redis_conn
 
 
 @main.command()
 @click.argument('queues', nargs=-1)
-def empty(queues):
+@click.pass_context
+def empty(ctx, queues):
     """[QUEUES]: queues to empty, default: failed queue
 
     \b
@@ -37,18 +42,21 @@ def empty(queues):
     10 jobs removed from default queue
     2 jobs removed from high queue
     """
-    queues = list(map(Queue, queues))
+    conn = ctx.obj['connection']
+    queues = [Queue(queue, connection=conn) for queue in queues]
     if not queues:
-        queues = (get_failed_queue(),)
+        queues = (get_failed_queue(connection=conn),)
     for queue in queues:
         num_jobs = queue.empty()
         click.echo('{} jobs removed from {} queue'.format(num_jobs, queue.name))
 
 
 @main.command()
-def requeue():
+@click.pass_context
+def requeue(ctx):
     """Requeue all failed jobs in failed queue"""
-    failed_queue = get_failed_queue()
+    conn = ctx.obj['connection']
+    failed_queue = get_failed_queue(connection=conn)
     job_ids = failed_queue.job_ids
     click.echo('Requeue failed jobs: {}'.format(len(job_ids)))
     requeue_failed_num = 0

rq/scripts/rqinfo.py

@@ -9,7 +9,7 @@ import click
 from functools import partial
 
 from redis.exceptions import ConnectionError
-from rq import Queue, Worker
+from rq import Queue, Worker, use_connection
 
 
 red = partial(click.style, fg='red') 
@@ -155,12 +155,15 @@ def refresh(val, func, *args):
 @click.option('--only-workers', '-W', is_flag=True, help='Show only worker info')  # noqa
 @click.option('--by-queue', '-R', is_flag=True, help='Shows workers by queue')  # noqa
 @click.argument('queues', nargs=-1)
-def info(path, interval, raw, only_queues, only_workers, by_queue, queues):
+@click.pass_context
+def info(ctx, path, interval, raw, only_queues, only_workers, by_queue, queues):
     """RQ command-line monitor."""
 
     if path:
         sys.path = path.split(':') + sys.path
 
+    conn = ctx.obj['connection']
+    use_connection(conn)
     try:
         if only_queues:
             func = show_queues