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# Copyright (C) 2012-2014 Aleksey Lim
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import os
import json
import logging
from xml.etree import cElementTree as ElementTree
from os.path import join, exists, basename
from sugar_network import toolkit
from sugar_network.toolkit import Option, http, enforce
obs_url = Option(
'OBS API url; the entire OBS related functionality makes sense only '
'for master server',
default='https://obs.sugarlabs.org')
obs_project = Option(
'OBS project to use unattended building',
default='base')
obs_presolve_project = Option(
'OBS project to use with packagekit-backend-presolve',
default='presolve')
_logger = logging.getLogger('node.obs')
_conn = None
_repos = {}
def get_repos():
return _get_repos(obs_project.value)
def resolve(repo, arch, packages):
response = _request('GET', ['resolve'], params={
'project': obs_project.value,
'repository': repo,
'arch': arch,
'package': packages,
})
return dict(response.find('binary').items())
def presolve(repo_name, packages, dst_path):
for repo in _get_repos(obs_presolve_project.value):
dst_dir = join(dst_path, 'packages',
obs_presolve_project.value, repo['name'])
result = {}
to_download = []
for package in packages:
files = result.setdefault(package, {})
try:
for repo_arch in repo['arches']:
response = _request('GET', ['resolve'], params={
'project': obs_presolve_project.value,
'repository': '%(lsb_id)s-%(lsb_release)s' % repo,
'arch': repo_arch,
'package': package,
'withdeps': '1',
'exclude': 'sweets-sugar',
})
for binary in response.findall('binary'):
binary = dict(binary.items())
arch = binary.pop('arch')
url = binary.pop('url')
filename = binary['path'] = basename(url)
path = join(dst_dir, filename)
if not exists(path):
to_download.append((url, path))
files.setdefault(arch, []).append(binary)
except Exception:
toolkit.exception(_logger, 'Failed to presolve %r on %s',
packages, repo['name'])
continue
_logger.debug('Presolve %r on %s', packages, repo['name'])
if not exists(dst_dir):
os.makedirs(dst_dir)
for url, path in to_download:
_conn.download(url, path)
for package, info in result.items():
with toolkit.new_file(join(dst_dir, package)) as f:
json.dump(info, f)
return {'repo': repo['name'], 'packages': result}
def _request(*args, **kwargs):
global _conn
if _conn is None:
_conn = http.Connection(obs_url.value)
response = _conn.request(*args, allowed=(400, 404), **kwargs)
enforce(response.headers.get('Content-Type') == 'text/xml',
'Irregular OBS response')
reply = ElementTree.fromstring(response.content)
if response.status_code != 200:
summary = reply.find('summary')
enforce(summary is not None, 'Unknown OBS error')
raise RuntimeError(summary.text)
return reply
def _get_repos(project):
if project in _repos:
return _repos[project]
if not obs_url.value:
return []
repos = _repos[project] = []
for repo in _request('GET', ['build', project]).findall('entry'):
repo = repo.get('name')
arches = _request('GET', ['build', project, repo])
lsb_id, lsb_release = repo.split('-', 1)
repos.append({
'lsb_id': lsb_id,
'lsb_release': lsb_release,
'name': repo,
'arches': [i.get('name') for i in arches.findall('entry')],
})
return repos
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