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- from pip._vendor.packaging.utils import canonicalize_name
-
-
- class FormatControl(object):
- """A helper class for controlling formats from which packages are installed.
- If a field is falsy, it isn't set. If it is {':all:'}, it should match all
- packages except those listed in the other field. Only one field can be set
- to {':all:'} at a time. The rest of the time exact package name matches
- are listed, with any given package only showing up in one field at a time.
- """
- def __init__(self, no_binary=None, only_binary=None):
- self.no_binary = set() if no_binary is None else no_binary
- self.only_binary = set() if only_binary is None else only_binary
-
- def __eq__(self, other):
- return self.__dict__ == other.__dict__
-
- def __ne__(self, other):
- return not self.__eq__(other)
-
- def __repr__(self):
- return "{}({}, {})".format(
- self.__class__.__name__,
- self.no_binary,
- self.only_binary
- )
-
- @staticmethod
- def handle_mutual_excludes(value, target, other):
- new = value.split(',')
- while ':all:' in new:
- other.clear()
- target.clear()
- target.add(':all:')
- del new[:new.index(':all:') + 1]
- # Without a none, we want to discard everything as :all: covers it
- if ':none:' not in new:
- return
- for name in new:
- if name == ':none:':
- target.clear()
- continue
- name = canonicalize_name(name)
- other.discard(name)
- target.add(name)
-
- def get_allowed_formats(self, canonical_name):
- result = {"binary", "source"}
- if canonical_name in self.only_binary:
- result.discard('source')
- elif canonical_name in self.no_binary:
- result.discard('binary')
- elif ':all:' in self.only_binary:
- result.discard('source')
- elif ':all:' in self.no_binary:
- result.discard('binary')
- return frozenset(result)
-
- def disallow_binaries(self):
- self.handle_mutual_excludes(
- ':all:', self.no_binary, self.only_binary,
- )
|
