0cb928cd53
We were passing the wrong directory name, resulting in hashing a nonexistent directory and all components having the same SHA-1. Unfortunately os.walk succeeds silently in this case. Move hash_dir and hash_file to util so they can be used by other scripts. (Migration of existing hashfile implementations will come later.) Restructure the main function to look a little more like the logic in download_file.py, where we download to the cached location first and then copy it after. Fix all the broken SHA-1s in lib/js/BUCK. Change-Id: I58bc62f84b62169bf18695a6a6704c989036c4f6
103 lines
2.9 KiB
Python
103 lines
2.9 KiB
Python
# Copyright (C) 2013 The Android Open Source Project
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import os
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from os import path
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REPO_ROOTS = {
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'GERRIT': 'http://gerrit-maven.storage.googleapis.com',
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'GERRIT_API': 'https://gerrit-api.commondatastorage.googleapis.com/release',
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'MAVEN_CENTRAL': 'http://repo1.maven.org/maven2',
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'MAVEN_LOCAL': 'file://' + path.expanduser('~/.m2/repository'),
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}
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def resolve_url(url, redirects):
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""" Resolve URL of a Maven artifact.
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prefix:path is passed as URL. prefix identifies known or custom
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repositories that can be rewritten in redirects set, passed as
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second arguments.
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A special case is supported, when prefix neither exists in
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REPO_ROOTS, no in redirects set: the url is returned as is.
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This enables plugins to pass custom maven_repository URL as is
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directly to maven_jar().
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Returns a resolved path for Maven artifact.
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"""
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s = url.find(':')
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if s < 0:
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return url
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scheme, rest = url[:s], url[s+1:]
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if scheme in redirects:
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root = redirects[scheme]
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elif scheme in REPO_ROOTS:
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root = REPO_ROOTS[scheme]
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else:
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return url
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root = root.rstrip('/')
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rest = rest.lstrip('/')
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return '/'.join([root, rest])
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def hash_file(hash_obj, path):
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"""Hash the contents of a file.
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Args:
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hash_obj: an open hash object, e.g. hashlib.sha1().
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path: path to the file to hash.
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Returns:
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The passed-in hash_obj.
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"""
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with open(path, 'rb') as f:
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while True:
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b = f.read(8192)
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if not b:
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break
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hash_obj.update(b)
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return hash_obj
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def hash_bower_component(hash_obj, path):
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"""Hash the contents of a bower component directory.
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This is a stable hash of a directory downloaded with `bower install`, minus
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the .bower.json file, which is autogenerated each time by bower. Used in lieu
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of hashing a zipfile of the contents, since zipfiles are difficult to hash in
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a stable manner.
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Args:
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hash_obj: an open hash object, e.g. hashlib.sha1().
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path: path to the directory to hash.
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Returns:
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The passed-in hash_obj.
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"""
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if not os.path.isdir(path):
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raise ValueError('Not a directory: %s' % path)
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path = os.path.abspath(path)
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for root, dirs, files in os.walk(path):
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dirs.sort()
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for f in sorted(files):
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if f == '.bower.json':
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continue
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p = os.path.join(root, f)
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hash_obj.update(p[len(path)+1:])
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hash_file(hash_obj, p)
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return hash_obj
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