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from __future__ import absolute_import, unicode_literals
from abc import ABCMeta
from six import add_metaclass
from virtualenv.util.path import Path
from virtualenv.util.six import ensure_str, ensure_text
from ..seeder import Seeder
from ..wheels import Version
PERIODIC_UPDATE_ON_BY_DEFAULT = True
@add_metaclass(ABCMeta)
class BaseEmbed(Seeder):
def __init__(self, options):
super(BaseEmbed, self).__init__(options, enabled=options.no_seed is False)
self.download = options.download
self.extra_search_dir = [i.resolve() for i in options.extra_search_dir if i.exists()]
self.pip_version = options.pip
self.setuptools_version = options.setuptools
self.wheel_version = options.wheel
self.no_pip = options.no_pip
self.no_setuptools = options.no_setuptools
self.no_wheel = options.no_wheel
self.app_data = options.app_data
self.periodic_update = not options.no_periodic_update
if not self.distribution_to_versions():
self.enabled = False
@classmethod
def distributions(cls):
return {
"pip": Version.bundle,
"setuptools": Version.bundle,
"wheel": Version.bundle,
}
def distribution_to_versions(self):
return {
distribution: getattr(self, "{}_version".format(distribution))
for distribution in self.distributions()
if getattr(self, "no_{}".format(distribution)) is False
}
@classmethod
def add_parser_arguments(cls, parser, interpreter, app_data):
group = parser.add_mutually_exclusive_group()
group.add_argument(
"--no-download",
"--never-download",
dest="download",
action="store_false",
help="pass to disable download of the latest {} from PyPI".format("/".join(cls.distributions())),
default=True,
)
group.add_argument(
"--download",
dest="download",
action="store_true",
help="pass to enable download of the latest {} from PyPI".format("/".join(cls.distributions())),
default=False,
)
parser.add_argument(
"--extra-search-dir",
metavar="d",
type=Path,
nargs="+",
help="a path containing wheels to extend the internal wheel list (can be set 1+ times)",
default=[],
)
for distribution, default in cls.distributions().items():
parser.add_argument(
"--{}".format(distribution),
dest=distribution,
metavar="version",
help="version of {} to install as seed: embed, bundle or exact version".format(distribution),
default=default,
)
for distribution in cls.distributions():
parser.add_argument(
"--no-{}".format(distribution),
dest="no_{}".format(distribution),
action="store_true",
help="do not install {}".format(distribution),
default=False,
)
parser.add_argument(
"--no-periodic-update",
dest="no_periodic_update",
action="store_true",
help="disable the periodic (once every 14 days) update of the embedded wheels",
default=not PERIODIC_UPDATE_ON_BY_DEFAULT,
)
def __unicode__(self):
result = self.__class__.__name__
result += "("
if self.extra_search_dir:
result += "extra_search_dir={},".format(", ".join(ensure_text(str(i)) for i in self.extra_search_dir))
result += "download={},".format(self.download)
for distribution in self.distributions():
if getattr(self, "no_{}".format(distribution)):
continue
result += " {}{},".format(
distribution,
"={}".format(getattr(self, "{}_version".format(distribution), None) or "latest"),
)
return result[:-1] + ")"
def __repr__(self):
return ensure_str(self.__unicode__())
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