zulip/zerver/management/commands/enqueue_file.py

63 lines
1.9 KiB
Python

from __future__ import absolute_import
from __future__ import print_function
from typing import Any, IO
from argparse import ArgumentParser
from django.core.management.base import BaseCommand
from zerver.lib.queue import queue_json_publish
import sys
import ujson
def error(*args):
# type: (*Any) -> None
raise Exception('We cannot enqueue because settings.USING_RABBITMQ is False.')
class Command(BaseCommand):
help = """Read JSON lines from a file and enqueue them to a worker queue.
Each line in the file should either be a JSON payload or two tab-separated
fields, the second of which is a JSON payload. (The latter is to accomodate
the format of error files written by queue workers that catch exceptions--their
first field is a timestamp that we ignore.)
You can use "-" to represent stdin.
"""
def add_arguments(self, parser):
# type: (ArgumentParser) -> None
parser.add_argument('queue_name', metavar='<queue>', type=str,
help="name of worker queue to enqueue to")
parser.add_argument('file_name', metavar='<file>', type=str,
help="name of file containing JSON lines")
def handle(self, *args, **options):
# type: (*Any, **str) -> None
queue_name = options['queue_name']
file_name = options['file_name']
if file_name == '-':
f = sys.stdin # type: IO[str]
else:
f = open(file_name)
while True:
line = f.readline()
if not line:
break
line = line.strip()
try:
payload = line.split('\t')[1]
except IndexError:
payload = line
print('Queueing to queue %s: %s' % (queue_name, payload))
# Verify that payload is valid json.
data = ujson.loads(payload)
queue_json_publish(queue_name, data, error)