| """ |
| 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) |
