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- """
- Customized Mixin2to3 support:
- - adds support for converting doctests
- This module raises an ImportError on Python 2.
- """
- import warnings
- from distutils.util import Mixin2to3 as _Mixin2to3
- from distutils import log
- from lib2to3.refactor import RefactoringTool, get_fixers_from_package
- import setuptools
- from ._deprecation_warning import SetuptoolsDeprecationWarning
- class DistutilsRefactoringTool(RefactoringTool):
- def log_error(self, msg, *args, **kw):
- log.error(msg, *args)
- def log_message(self, msg, *args):
- log.info(msg, *args)
- def log_debug(self, msg, *args):
- log.debug(msg, *args)
- class Mixin2to3(_Mixin2to3):
- def run_2to3(self, files, doctests=False):
- # See of the distribution option has been set, otherwise check the
- # setuptools default.
- if self.distribution.use_2to3 is not True:
- return
- if not files:
- return
- warnings.warn(
- "2to3 support is deprecated. If the project still "
- "requires Python 2 support, please migrate to "
- "a single-codebase solution or employ an "
- "independent conversion process.",
- SetuptoolsDeprecationWarning)
- log.info("Fixing " + " ".join(files))
- self.__build_fixer_names()
- self.__exclude_fixers()
- if doctests:
- if setuptools.run_2to3_on_doctests:
- r = DistutilsRefactoringTool(self.fixer_names)
- r.refactor(files, write=True, doctests_only=True)
- else:
- _Mixin2to3.run_2to3(self, files)
- def __build_fixer_names(self):
- if self.fixer_names:
- return
- self.fixer_names = []
- for p in setuptools.lib2to3_fixer_packages:
- self.fixer_names.extend(get_fixers_from_package(p))
- if self.distribution.use_2to3_fixers is not None:
- for p in self.distribution.use_2to3_fixers:
- self.fixer_names.extend(get_fixers_from_package(p))
- def __exclude_fixers(self):
- excluded_fixers = getattr(self, 'exclude_fixers', [])
- if self.distribution.use_2to3_exclude_fixers is not None:
- excluded_fixers.extend(self.distribution.use_2to3_exclude_fixers)
- for fixer_name in excluded_fixers:
- if fixer_name in self.fixer_names:
- self.fixer_names.remove(fixer_name)
|
