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#!/usr/bin/env python
import sys
from itertools import chain
from urllib.parse import urljoin
import requests
if len(sys.argv) != 2:
print("Usage: %s SOLR_VERSION" % sys.argv[0], file=sys.stderr)
sys.exit(1)
solr_version = sys.argv[1]
tarball = "solr-{0}.tgz".format(solr_version)
dist_path = "lucene/solr/{0}/{1}".format(solr_version, tarball)
download_url = urljoin("https://archive.apache.org/dist/", dist_path)
mirror_response = requests.get(
"https://www.apache.org/dyn/mirrors/mirrors.cgi/%s?asjson=1" % dist_path
)
if not mirror_response.ok:
print(
"Apache mirror request returned HTTP %d" % mirror_response.status_code,
file=sys.stderr,
)
sys.exit(1)
mirror_data = mirror_response.json()
# Since the Apache mirrors are often unreliable and releases may disappear without notice we'll
# try the preferred mirror, all of the alternates and backups, and fall back to the main Apache
# archive server:
for base_url in chain(
(mirror_data["preferred"],),
mirror_data["http"],
mirror_data["backup"],
("https://archive.apache.org/dist/",),
):
test_url = urljoin(base_url, mirror_data["path_info"])
# The Apache mirror script's response format has recently changed to exclude the actual file paths:
if not test_url.endswith(tarball):
test_url = urljoin(test_url, dist_path)
try:
if requests.head(test_url, allow_redirects=True).status_code == 200:
download_url = test_url
break
except requests.exceptions.ConnectionError:
continue
else:
print("None of the Apache mirrors have %s" % dist_path, file=sys.stderr)
sys.exit(1)
print(download_url)
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