pungi/pungi/multilib_dnf.py

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# -*- coding: utf-8 -*-
# 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; version 2 of the License.
#
# 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 Library 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 <https://gnu.org/licenses/>.
from multilib import multilib
class Multilib(object):
"""This class decides whether a package should be multilib.
To use it, create an instance and call the ``is_multilib`` method on it.
The blacklist and whitelist in constructor should be sets of package names.
It may be more convenient to create the instance with the ``from_globs``
method that accepts a DNF sach and an iterable of globs that will be used
to find package names.
"""
def __init__(self, methods, blacklist, whitelist):
self.methods = {}
self.blacklist = blacklist
self.whitelist = whitelist
self.all_methods = {
'none': multilib.NoMultilibMethod(None),
'all': multilib.AllMultilibMethod(None),
'devel': multilib.DevelMultilibMethod(None),
'runtime': multilib.RuntimeMultilibMethod(None),
}
for method in methods:
self.methods[method] = self.all_methods[method]
@classmethod
def from_globs(cls, sack, methods, blacklist=None, whitelist=None):
"""Create a Multilib instance with expanded blacklist and whitelist."""
return cls(methods,
_expand_list(sack, blacklist or []),
_expand_list(sack, whitelist or []))
def is_multilib(self, pkg):
if pkg.name in self.blacklist:
return False
if pkg.name in self.whitelist:
return 'whitelist'
for method, cls in self.methods.items():
if cls.select(pkg):
return method
return False
def _expand_list(sack, patterns):
"""Find all package names that match any of the provided patterns."""
return set(pkg.name for pkg in sack.query().filter(name__glob=list(patterns)))