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from __future__ import absolute_import, unicode_literals
import os
from abc import ABCMeta, abstractmethod
from six import add_metaclass
@add_metaclass(ABCMeta)
class Activator(object):
"""Generates an activate script for the virtual environment"""
def __init__(self, options):
"""Create a new activator generator.
:param options: the parsed options as defined within :meth:`add_parser_arguments`
"""
self.flag_prompt = os.path.basename(os.getcwd()) if options.prompt == "." else options.prompt
@classmethod
def supports(cls, interpreter):
"""Check if the activation script is supported in the given interpreter.
:param interpreter: the interpreter we need to support
:return: ``True`` if supported, ``False`` otherwise
"""
return True
@classmethod
def add_parser_arguments(cls, parser, interpreter):
"""
Add CLI arguments for this activation script.
:param parser: the CLI parser
:param interpreter: the interpreter this virtual environment is based of
"""
@abstractmethod
def generate(self, creator):
"""Generate the activate script for the given creator.
:param creator: the creator (based of :class:`virtualenv.create.creator.Creator`) we used to create this \
virtual environment
"""
raise NotImplementedError