168 lines
4.7 KiB
Python
168 lines
4.7 KiB
Python
"""
|
|
Monkey patching of distutils.
|
|
"""
|
|
|
|
import functools
|
|
import inspect
|
|
import platform
|
|
import sys
|
|
import types
|
|
from importlib import import_module
|
|
|
|
import distutils.filelist
|
|
|
|
|
|
__all__ = []
|
|
"""
|
|
Everything is private. Contact the project team
|
|
if you think you need this functionality.
|
|
"""
|
|
|
|
|
|
def _get_mro(cls):
|
|
"""
|
|
Returns the bases classes for cls sorted by the MRO.
|
|
|
|
Works around an issue on Jython where inspect.getmro will not return all
|
|
base classes if multiple classes share the same name. Instead, this
|
|
function will return a tuple containing the class itself, and the contents
|
|
of cls.__bases__. See https://github.com/pypa/setuptools/issues/1024.
|
|
"""
|
|
if platform.python_implementation() == "Jython":
|
|
return (cls,) + cls.__bases__
|
|
return inspect.getmro(cls)
|
|
|
|
|
|
def get_unpatched(item):
|
|
lookup = (
|
|
get_unpatched_class
|
|
if isinstance(item, type)
|
|
else get_unpatched_function
|
|
if isinstance(item, types.FunctionType)
|
|
else lambda item: None
|
|
)
|
|
return lookup(item)
|
|
|
|
|
|
def get_unpatched_class(cls):
|
|
"""Protect against re-patching the distutils if reloaded
|
|
|
|
Also ensures that no other distutils extension monkeypatched the distutils
|
|
first.
|
|
"""
|
|
external_bases = (
|
|
cls for cls in _get_mro(cls) if not cls.__module__.startswith('setuptools')
|
|
)
|
|
base = next(external_bases)
|
|
if not base.__module__.startswith('distutils'):
|
|
msg = "distutils has already been patched by %r" % cls
|
|
raise AssertionError(msg)
|
|
return base
|
|
|
|
|
|
def patch_all():
|
|
import setuptools
|
|
|
|
# we can't patch distutils.cmd, alas
|
|
distutils.core.Command = setuptools.Command
|
|
|
|
has_issue_12885 = sys.version_info <= (3, 5, 3)
|
|
|
|
if has_issue_12885:
|
|
# fix findall bug in distutils (http://bugs.python.org/issue12885)
|
|
distutils.filelist.findall = setuptools.findall
|
|
|
|
needs_warehouse = (3, 4) < sys.version_info < (3, 4, 6) or (
|
|
3,
|
|
5,
|
|
) < sys.version_info <= (3, 5, 3)
|
|
|
|
if needs_warehouse:
|
|
warehouse = 'https://upload.pypi.org/legacy/'
|
|
distutils.config.PyPIRCCommand.DEFAULT_REPOSITORY = warehouse
|
|
|
|
_patch_distribution_metadata()
|
|
|
|
# Install Distribution throughout the distutils
|
|
for module in distutils.dist, distutils.core, distutils.cmd:
|
|
module.Distribution = setuptools.dist.Distribution
|
|
|
|
# Install the patched Extension
|
|
distutils.core.Extension = setuptools.extension.Extension
|
|
distutils.extension.Extension = setuptools.extension.Extension
|
|
if 'distutils.command.build_ext' in sys.modules:
|
|
sys.modules[
|
|
'distutils.command.build_ext'
|
|
].Extension = setuptools.extension.Extension
|
|
|
|
patch_for_msvc_specialized_compiler()
|
|
|
|
|
|
def _patch_distribution_metadata():
|
|
from . import _core_metadata
|
|
|
|
"""Patch write_pkg_file and read_pkg_file for higher metadata standards"""
|
|
for attr in (
|
|
'write_pkg_info',
|
|
'write_pkg_file',
|
|
'read_pkg_file',
|
|
'get_metadata_version',
|
|
):
|
|
new_val = getattr(_core_metadata, attr)
|
|
setattr(distutils.dist.DistributionMetadata, attr, new_val)
|
|
|
|
|
|
def patch_func(replacement, target_mod, func_name):
|
|
"""
|
|
Patch func_name in target_mod with replacement
|
|
|
|
Important - original must be resolved by name to avoid
|
|
patching an already patched function.
|
|
"""
|
|
original = getattr(target_mod, func_name)
|
|
|
|
# set the 'unpatched' attribute on the replacement to
|
|
# point to the original.
|
|
vars(replacement).setdefault('unpatched', original)
|
|
|
|
# replace the function in the original module
|
|
setattr(target_mod, func_name, replacement)
|
|
|
|
|
|
def get_unpatched_function(candidate):
|
|
return getattr(candidate, 'unpatched')
|
|
|
|
|
|
def patch_for_msvc_specialized_compiler():
|
|
"""
|
|
Patch functions in distutils to use standalone Microsoft Visual C++
|
|
compilers.
|
|
"""
|
|
# import late to avoid circular imports on Python < 3.5
|
|
msvc = import_module('setuptools.msvc')
|
|
|
|
if platform.system() != 'Windows':
|
|
# Compilers only available on Microsoft Windows
|
|
return
|
|
|
|
def patch_params(mod_name, func_name):
|
|
"""
|
|
Prepare the parameters for patch_func to patch indicated function.
|
|
"""
|
|
repl_prefix = 'msvc14_'
|
|
repl_name = repl_prefix + func_name.lstrip('_')
|
|
repl = getattr(msvc, repl_name)
|
|
mod = import_module(mod_name)
|
|
if not hasattr(mod, func_name):
|
|
raise ImportError(func_name)
|
|
return repl, mod, func_name
|
|
|
|
# Python 3.5+
|
|
msvc14 = functools.partial(patch_params, 'distutils._msvccompiler')
|
|
|
|
try:
|
|
# Patch distutils._msvccompiler._get_vc_env
|
|
patch_func(*msvc14('_get_vc_env'))
|
|
except ImportError:
|
|
pass
|