zulip/zerver/management/commands/enqueue_file.py

62 lines
1.8 KiB
Python

import sys
from argparse import ArgumentParser
from typing import IO, Any
import orjson
from django.core.management.base import BaseCommand
from zerver.lib.queue import queue_json_publish
def error(*args: 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 accommodate
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: ArgumentParser) -> None:
parser.add_argument(
"queue_name", metavar="<queue>", help="name of worker queue to enqueue to"
)
parser.add_argument(
"file_name", metavar="<file>", help="name of file containing JSON lines"
)
def handle(self, *args: Any, **options: str) -> None:
queue_name = options["queue_name"]
file_name = options["file_name"]
if file_name == "-":
f: IO[str] = sys.stdin
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(f"Queueing to queue {queue_name}: {payload}")
# Verify that payload is valid json.
data = orjson.loads(payload)
# This is designed to use the `error` method rather than
# the call_consume_in_tests flow.
queue_json_publish(queue_name, data, error)