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# The following comment should be removed at some point in the future.
# mypy: strict-optional=False
# mypy: disallow-untyped-defs=False
from pip._vendor.packaging.utils import canonicalize_name
from pip._internal.exceptions import CommandError
from pip._internal.utils.typing import MYPY_CHECK_RUNNING
if MYPY_CHECK_RUNNING:
from typing import Optional, Set, FrozenSet
class FormatControl(object):
"""Helper for managing formats from which a package can be installed.
"""
def __init__(self, no_binary=None, only_binary=None):
# type: (Optional[Set], Optional[Set]) -> None
if no_binary is None:
no_binary = set()
if only_binary is None:
only_binary = set()
self.no_binary = no_binary
self.only_binary = 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):
# type: (str, Optional[Set], Optional[Set]) -> None
if value.startswith('-'):
raise CommandError(
"--no-binary / --only-binary option requires 1 argument."
)
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):
# type: (str) -> FrozenSet
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):
# type: () -> None
self.handle_mutual_excludes(
':all:', self.no_binary, self.only_binary,
)