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from io import TextIOWrapper
from pathlib import Path
import re
import tarfile
from typing import Mapping, TextIO, Tuple
from .base import Repository, Version
__all__ = [
'core',
'community',
'community_testing',
'extra',
'gnome_unstable',
'kde_unstable',
'multilib',
'multilib_testing',
'testing',
]
PACKAGE_REVISION_INFO = re.compile(r'(^\d+:)|(-\d+$)')
def parse_desc(desc_file: TextIO) -> Tuple[str, Version]:
name = None
version = None
next_line_is = None
for line in desc_file:
line = line.strip()
if len(line) == 0:
continue
if line.startswith('%') and line.endswith('%'):
next_line_is = line.strip('%')
continue
if next_line_is == 'NAME':
name = line
elif next_line_is == 'VERSION':
version = line
next_line_is = None
if name is not None and version is not None:
clean_version = PACKAGE_REVISION_INFO.sub('', version)
return name, Version(version, clean_version)
def parse_cached(cached: Path) -> Mapping[str, Version]:
db = tarfile.open(cached)
result = dict()
for archive_member in db.getmembers():
if archive_member.name.endswith('/desc') and archive_member.isfile():
desc_file = db.extractfile(archive_member)
desc_file = TextIOWrapper(desc_file)
name, version = parse_desc(desc_file)
result[name] = version
return result
def build_repo(name: str) -> Repository:
url = f'https://mirror.rackspace.com/archlinux/{name}/os/x86_64/{name}.db.tar.gz'
return Repository(
family=None,
repo='Arch Linux',
section=name,
index_url=url,
parse=parse_cached,
)
core = build_repo('core')
community = build_repo('community')
community_testing = build_repo('community-testing')
extra = build_repo('extra')
gnome_unstable = build_repo('gnome-unstable')
kde_unstable = build_repo('kde-unstable')
multilib = build_repo('multilib')
multilib_testing = build_repo('multilib-testing')
testing = build_repo('testing')
# TODO figure out how to grab this info from AUR
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