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# SPDX-FileCopyrightText: 2015 Eric Larson
#
# SPDX-License-Identifier: Apache-2.0
from __future__ import annotations
import logging
from argparse import ArgumentParser
from typing import TYPE_CHECKING
from pip._vendor import requests
from pip._vendor.cachecontrol.adapter import CacheControlAdapter
from pip._vendor.cachecontrol.cache import DictCache
from pip._vendor.cachecontrol.controller import logger
if TYPE_CHECKING:
from argparse import Namespace
from pip._vendor.cachecontrol.controller import CacheController
def setup_logging() -> None:
logger.setLevel(logging.DEBUG)
handler = logging.StreamHandler()
logger.addHandler(handler)
def get_session() -> requests.Session:
adapter = CacheControlAdapter(
DictCache(), cache_etags=True, serializer=None, heuristic=None
)
sess = requests.Session()
sess.mount("http://", adapter)
sess.mount("https://", adapter)
sess.cache_controller = adapter.controller # type: ignore[attr-defined]
return sess
def get_args() -> Namespace:
parser = ArgumentParser()
parser.add_argument("url", help="The URL to try and cache")
return parser.parse_args()
def main() -> None:
args = get_args()
sess = get_session()
# Make a request to get a response
resp = sess.get(args.url)
# Turn on logging
setup_logging()
# try setting the cache
cache_controller: CacheController = (
sess.cache_controller # type: ignore[attr-defined]
)
cache_controller.cache_response(resp.request, resp.raw)
# Now try to get it
if cache_controller.cached_request(resp.request):
print("Cached!")
else:
print("Not cached :(")
if __name__ == "__main__":
main()