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#!/usr/bin/env python
# Copyright 2020 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.
"""
This script is used to download YAJSV (yet another json schema validator). It
runs as a gclient hook.
"""
import argparse
import curlish
import os
import stat
import sys
RELEASES_DOWNLOAD_URL = 'https://github.com/neilpa/yajsv/releases/download/'
VERSION = 'v1.4.0'
YAJSV_FLAVOR_DICT = {
'linux32': 'yajsv.linux.386',
'linux64': 'yajsv.linux.amd64',
'mac64': 'yajsv.darwin.amd64'
}
PLATFORM_MAP = {'linux2': 'linux', 'darwin': 'mac'}
def get_bitness():
# According to the python docs, this is more reliable than
# querying platform.architecture().
if sys.maxsize > 2**32:
return '64'
return '32'
def get_platform():
return PLATFORM_MAP.get(sys.platform, sys.platform)
def get_flavor():
return "{}{}".format(get_platform(), get_bitness())
def main():
parser = argparse.ArgumentParser(description='Download a YAJSV release.')
parser.add_argument('--flavor',
help='Flavor to download (currently one of {})'.format(
', '.join(YAJSV_FLAVOR_DICT.keys())))
args = parser.parse_args()
flavor = args.flavor
if not flavor:
flavor = get_flavor()
if flavor in YAJSV_FLAVOR_DICT:
print('flavor not provided, defaulting to ' + flavor)
if flavor not in YAJSV_FLAVOR_DICT:
print('could not find an appropriate flavor, "{}" is invalid'.format(
flavor))
return 1
output_path = os.path.abspath(
os.path.join(os.path.dirname(os.path.relpath(__file__)), 'yajsv'))
download_url = '{}{}/{}'.format(RELEASES_DOWNLOAD_URL, VERSION,
YAJSV_FLAVOR_DICT[flavor])
result = curlish.curlish(download_url, output_path)
# YAJSV isn't useful if it's not executable.
if result:
current_mode = os.stat(output_path).st_mode
os.chmod(output_path, current_mode | stat.S_IEXEC)
return 0 if result else 1
if __name__ == '__main__':
sys.exit(main())
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