tool-hash.py

#!/usr/bin/env python

# coding=utf-8
#
# This file is part of Hypothesis, which may be found at
# https://github.com/HypothesisWorks/hypothesis-python
#
# Most of this work is copyright (C) 2013-2017 David R. MacIver
# (david@drmaciver.com), but it contains contributions by others. See
# CONTRIBUTING.rst for a full list of people who may hold copyright, and
# consult the git log if you need to determine who owns an individual
# contribution.
#
# This Source Code Form is subject to the terms of the Mozilla Public License,
# v. 2.0. If a copy of the MPL was not distributed with this file, You can
# obtain one at http://mozilla.org/MPL/2.0/.
#
# END HEADER

from __future__ import division, print_function, absolute_import

import os
import sys
import hashlib

SCRIPTS_DIR = os.path.dirname(os.path.abspath(__file__))
ROOT_DIR = os.path.dirname(SCRIPTS_DIR)

if __name__ == '__main__':
    name = sys.argv[1]

    requirements = os.path.join(
        ROOT_DIR, 'requirements', '%s.txt' % (name,)
    )

    assert os.path.exists(requirements)

    with open(requirements, 'rb') as f:
        tools = f.read()
    print(hashlib.sha1(tools).hexdigest()[:10])