X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/6e5e1c725a10ea791f00d073003175ac3c29a6c7..04efddf61ee4a0e5c65a72a538fe3f026ae94e8e:/sdk/python/arvados/commands/ws.py

diff --git a/sdk/python/arvados/commands/ws.py b/sdk/python/arvados/commands/ws.py
index be48dc0cb9..aa7dd05b23 100644
--- a/sdk/python/arvados/commands/ws.py
+++ b/sdk/python/arvados/commands/ws.py
@@ -1,20 +1,24 @@
-#!/usr/bin/env python
-
+from __future__ import print_function
 import sys
 import logging
 import argparse
 import arvados
 import json
 from arvados.events import subscribe
+from arvados._version import __version__
 import signal
 
 def main(arguments=None):
     logger = logging.getLogger('arvados.arv-ws')
 
     parser = argparse.ArgumentParser()
+    parser.add_argument('--version', action='version',
+                        version="%s %s" % (sys.argv[0], __version__),
+                        help='Print version and exit.')
     parser.add_argument('-u', '--uuid', type=str, default="", help="Filter events on object_uuid")
     parser.add_argument('-f', '--filters', type=str, default="", help="Arvados query filter to apply to log events (JSON encoded)")
-    parser.add_argument('-s', '--start_time', type=str, default="", help="Arvados query filter to fetch log events created at or after this time. Allowed format: YYYY-MM-DD or YYYY-MM-DD hh:mm:ss")
+    parser.add_argument('-s', '--start-time', type=str, default="", help="Arvados query filter to fetch log events created at or after this time. This will be server time in UTC. Allowed format: YYYY-MM-DD or YYYY-MM-DD hh:mm:ss")
+    parser.add_argument('-i', '--id', type=int, default=None, help="Start from given log id.")
 
     group = parser.add_mutually_exclusive_group()
     group.add_argument('--poll-interval', default=15, type=int, help="If websockets is not available, specify the polling interval, default is every 15 seconds")
@@ -62,8 +66,13 @@ def main(arguments=None):
         filters += [ ['object_uuid', '=', args.pipeline] ]
 
     if args.start_time:
-        args.last_log_id = 1
+        last_log_id = 1
         filters += [ ['created_at', '>=', args.start_time] ]
+    else:
+        last_log_id = None
+
+    if args.id:
+        last_log_id = args.id-1
 
     def on_message(ev):
         global filters
@@ -87,10 +96,10 @@ def main(arguments=None):
         elif 'status' in ev and ev['status'] == 200:
             pass
         else:
-            print json.dumps(ev)
+            print(json.dumps(ev))
 
     try:
-        ws = subscribe(arvados.api('v1'), filters, on_message, poll_fallback=args.poll_interval, last_log_id=args.last_log_id)
+        ws = subscribe(arvados.api('v1'), filters, on_message, poll_fallback=args.poll_interval, last_log_id=last_log_id)
         if ws:
             if args.pipeline:
                 c = api.pipeline_instances().get(uuid=args.pipeline).execute()