zulip/scripts/setup/flush-memcached

#!/usr/bin/env python3

import os
import socket
import sys
from urllib.parse import urlsplit

BASE_DIR = os.path.join(os.path.dirname(os.path.abspath(__file__)), "../..")
sys.path.append(BASE_DIR)

import scripts.lib.setup_path_on_import
from zproject import settings

url = urlsplit("//" + settings.MEMCACHED_LOCATION)
assert url.port is not None

print("Flushing memcached...")
with socket.create_connection((url.hostname, url.port)) as f:
    f.sendall(b"flush_all\r\n")
    response = b""
    while b"\n" not in response:
        response += f.recv(4096)
    if response != b"OK\r\n":
        print(response, file=sys.stderr)
        print("Failed to flush memcached", file=sys.stderr)
        sys.exit(1)