Simple script to fetch latest asgard build

fetch_asgard.py

#!/usr/bin/env python2

# The MIT License (MIT)
#
# Copyright (c) 2014 Michael Ossareh & Twitch Interactive, Inc.
#
# Permission is hereby granted, free of charge, to any person
# obtaining a copy of this software and associated
# documentation files (the "Software"), to deal in the
# Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute,
# sublicense, and/or sell copies of the Software, and to
#  permit persons to whom the Software is furnished to do so,
# subject to the following conditions:
#
# The above copyright notice and this permission notice shall
# be included in all copies or substantial portions of the
# Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
# THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
# PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS
# OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
# OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
import json
import urllib2
import sys

RELEASE_URL='https://api.github.com/repos/Netflix/asgard/releases'
ASGARD_NAME='asgard.war'

def _json_request(url):
    res = urllib2.urlopen(url)
    return json.loads(res.read())


def asset_url():
    latest_url = _json_request(RELEASE_URL)[0]['assets_url']
    res = _json_request(latest_url)
    for r in res:
        if r['name'] == ASGARD_NAME:
            return (r['url'], r['content_type'])


def fetch_latest_jar(store_location):
    url, content_type = asset_url()
    req = urllib2.Request(url, None, {'Accept': content_type})
    res = urllib2.urlopen(req)
    with open(store_location, 'w') as out:
        out.write(res.read())


def main(store_location):
    fetch_latest_jar(store_location)


if __name__ == '__main__':
    main(sys.argv[1])