| # Copyright 2015 The Chromium Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| import os |
| import subprocess |
| import sys |
| |
| def download_from_public_bucket(gs_path, output_path, depot_tools_path): |
| gsutil_exe = os.path.join(depot_tools_path, "third_party", "gsutil", "gsutil") |
| |
| # We're downloading from a public bucket which does not need authentication, |
| # but the user might have busted credential files somewhere such as ~/.boto |
| # that the gsutil script will try (and fail) to use. Setting these |
| # environment variables convinces gsutil not to attempt to use these, but |
| # also generates a useless warning about failing to load the file. We want |
| # to discard this warning but still preserve all output in the case of an |
| # actual failure. So, we run the script and capture all output and then |
| # throw the output away if the script succeeds (return code 0). |
| env = os.environ.copy() |
| env["AWS_CREDENTIAL_FILE"] = "" |
| env["BOTO_CONFIG"] = "" |
| try: |
| subprocess.check_output( |
| [gsutil_exe, |
| "--bypass_prodaccess", |
| "cp", |
| gs_path, |
| output_path], |
| stderr=subprocess.STDOUT, |
| env=env) |
| except subprocess.CalledProcessError as e: |
| print e.output |
| sys.exit(1) |