lookyloo/bin/run_backend.py

103 lines
2.8 KiB
Python
Executable File

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
import argparse
import os
import time
from pathlib import Path
from subprocess import Popen
from typing import List, Optional, Union
from redis import Redis
from redis.exceptions import ConnectionError
from lookyloo.default import get_homedir, get_socket_path
def check_running(name: str) -> bool:
socket_path = get_socket_path(name)
if not os.path.exists(socket_path):
return False
try:
r = Redis(unix_socket_path=socket_path)
return True if r.ping() else False
except ConnectionError:
return False
def launch_cache(storage_directory: Optional[Path]=None):
if not storage_directory:
storage_directory = get_homedir()
if not check_running('cache'):
Popen(["./run_redis.sh"], cwd=(storage_directory / 'cache'))
def shutdown_cache(storage_directory: Optional[Path]=None):
if not storage_directory:
storage_directory = get_homedir()
Popen(["./shutdown_redis.sh"], cwd=(storage_directory / 'cache'))
def launch_indexing(storage_directory: Optional[Path]=None):
if not storage_directory:
storage_directory = get_homedir()
if not check_running('indexing'):
Popen(["./run_redis.sh"], cwd=(storage_directory / 'indexing'))
def shutdown_indexing(storage_directory: Optional[Path]=None):
if not storage_directory:
storage_directory = get_homedir()
Popen(["./shutdown_redis.sh"], cwd=(storage_directory / 'indexing'))
def launch_all():
launch_cache()
launch_indexing()
def check_all(stop: bool=False):
backends: List[List[Union[str, bool]]] = [['cache', False], ['indexing', False]]
while True:
for b in backends:
try:
b[1] = check_running(b[0]) # type: ignore
except Exception:
b[1] = False
if stop:
if not any(b[1] for b in backends):
break
else:
if all(b[1] for b in backends):
break
for b in backends:
if not stop and not b[1]:
print(f"Waiting on {b[0]}")
if stop and b[1]:
print(f"Waiting on {b[0]}")
time.sleep(1)
def stop_all():
shutdown_cache()
shutdown_indexing()
def main():
parser = argparse.ArgumentParser(description='Manage backend DBs.')
parser.add_argument("--start", action='store_true', default=False, help="Start all")
parser.add_argument("--stop", action='store_true', default=False, help="Stop all")
parser.add_argument("--status", action='store_true', default=True, help="Show status")
args = parser.parse_args()
if args.start:
launch_all()
if args.stop:
stop_all()
if not args.stop and args.status:
check_all()
if __name__ == '__main__':
main()