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author | Jussi Pakkanen <jpakkane@gmail.com> | 2015-02-02 20:25:35 +0200 |
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committer | Jussi Pakkanen <jpakkane@gmail.com> | 2015-02-02 20:25:35 +0200 |
commit | f23e6c72f4b4e1805af02245d816cbccdbf7d619 (patch) | |
tree | 76614f48a1dd1f71cb6abb8bec651cb29b7ed591 /wrap.py | |
parent | be9bf62cd7eb06d3c5f52970165e3c388b658b87 (diff) | |
download | meson-f23e6c72f4b4e1805af02245d816cbccdbf7d619.zip meson-f23e6c72f4b4e1805af02245d816cbccdbf7d619.tar.gz meson-f23e6c72f4b4e1805af02245d816cbccdbf7d619.tar.bz2 |
First cut at the Wrap dependency downloader.
Diffstat (limited to 'wrap.py')
-rw-r--r-- | wrap.py | 92 |
1 files changed, 92 insertions, 0 deletions
@@ -0,0 +1,92 @@ +# Copyright 2015 The Meson development team + +# 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 mlog +import glob, urllib.request, os, hashlib, shutil + +class PackageDefinition: + def __init__(self, fname): + self.values = {} + ifile = open(fname) + first = ifile.readline().strip() + if first != '[mesonwrap]': + raise RuntimeError('Invalid format of package file') + for line in ifile: + line = line.strip() + if line == '': + continue + (k, v) = line.split('=', 1) + k = k.strip() + v = v.strip() + self.values[k] = v + + def get(self, key): + return self.values[key] + + def has_patch(self): + return 'patch_url' in self.values + +class Resolver: + def __init__(self, subdir_root): + self.subdir_root = subdir_root + self.cachedir = os.path.join(self.subdir_root, 'packagecache') + + def resolve(self, packagename): + fname = os.path.join(self.subdir_root, packagename + '.wrap') + if not os.path.isfile(fname): + return None + p = PackageDefinition(fname) + self.download(p, packagename) + self.extract_package(p) + return p.get('directory') + + def get_data(self, url): + u = urllib.request.urlopen(url) + data = u.read() + u.close() + h = hashlib.sha256() + h.update(data) + hashvalue = h.hexdigest() + return (data, hashvalue) + + def download(self, p, packagename): + ofname = os.path.join(self.cachedir, p.get('source_filename')) + if os.path.exists(ofname): + print('Using', packagename, 'from cache.') + return + srcurl = p.get('source_url') + print('Dowloading', packagename, 'from', srcurl) + (srcdata, dhash) = self.get_data(srcurl) + expected = p.get('source_hash') + if dhash != expected: + raise RuntimeError('Incorrect hash for source %s:\n %s expected\n %s actual.' % (packagename, expected, dhash)) + if p.has_patch(): + purl = p.get('patch_url') + print('Downloading patch from', purl) + (pdata, phash) = self.get_data(purl) + expected = p.get('patch_hash') + if phash != expected: + raise RuntimeError('Incorrect hash for patch %s:\n %s expected\n %s actual.' % (packagename, expected, phash)) + open(os.path.join(self.cachedir, p.get('patch_filename')), 'wb').write(pdata) + else: + print('Package does not require patch.') + open(ofname, 'wb').write(srcdata) + + def extract_package(self, package): + if os.path.isdir(os.path.join(self.subdir_root, package.get('directory'))): + return + print(os.path.join(self.cachedir, package.get('source_filename'))) + shutil.unpack_archive(os.path.join(self.cachedir, package.get('source_filename')), self.subdir_root) + if package.has_patch(): + shutil.unpack_archive(os.path.join(self.cachedir, package.get('patch_filename')), self.subdir_root) |