git-repo/fetch.py
Matt Story 11b30b91df Support more url schemes for getting standalone manifest
urllib.requests.urlopen also supports file, so call it unless the
scheme is 'gs'.  This adds http, https, and ftp support.

Change-Id: I3f215c3ebd8e6dee29ba14c7e79ed99d37287109
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/322095
Reviewed-by: Michael Kelly <mkelly@arista.com>
Reviewed-by: Mike Frysinger <vapier@google.com>
Tested-by: Matt Story <mstory@arista.com>
2021-10-27 13:20:35 +00:00

46 lines
1.5 KiB
Python

# Copyright (C) 2021 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""This module contains functions used to fetch files from various sources."""
import subprocess
import sys
from urllib.parse import urlparse
from urllib.request import urlopen
def fetch_file(url, verbose=False):
"""Fetch a file from the specified source using the appropriate protocol.
Returns:
The contents of the file as bytes.
"""
scheme = urlparse(url).scheme
if scheme == 'gs':
cmd = ['gsutil', 'cat', url]
try:
result = subprocess.run(
cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE,
check=True)
if result.stderr and verbose:
print('warning: non-fatal error running "gsutil": %s' % result.stderr,
file=sys.stderr)
return result.stdout
except subprocess.CalledProcessError as e:
print('fatal: error running "gsutil": %s' % e.stderr,
file=sys.stderr)
sys.exit(1)
with urlopen(url) as f:
return f.read()