47 lines
1.5 KiB
Python
47 lines
1.5 KiB
Python
# Copyright (C) 2013 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.
|
|
|
|
import os
|
|
|
|
|
|
def hash_bower_component(hash_obj, path):
|
|
"""Hash the contents of a bower component directory.
|
|
|
|
This is a stable hash of a directory downloaded with `bower install`, minus
|
|
the .bower.json file, which is autogenerated each time by bower. Used in lieu
|
|
of hashing a zipfile of the contents, since zipfiles are difficult to hash in
|
|
a stable manner.
|
|
|
|
Args:
|
|
hash_obj: an open hash object, e.g. hashlib.sha1().
|
|
path: path to the directory to hash.
|
|
|
|
Returns:
|
|
The passed-in hash_obj.
|
|
"""
|
|
if not os.path.isdir(path):
|
|
raise ValueError('Not a directory: %s' % path)
|
|
|
|
path = os.path.abspath(path)
|
|
for root, dirs, files in os.walk(path):
|
|
dirs.sort()
|
|
for f in sorted(files):
|
|
if f == '.bower.json':
|
|
continue
|
|
p = os.path.join(root, f)
|
|
hash_obj.update(p[len(path)+1:])
|
|
hash_obj.update(open(p).read())
|
|
|
|
return hash_obj
|