Viewing file:  setuptools_build.py (4.33 KB) -rw-r--r--
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import sys
import textwrap
from typing import List, Optional, Sequence
# Shim to wrap setup.py invocation with setuptools
# Note that __file__ is handled via two {!r} *and* %r, to ensure that paths on
# Windows are correctly handled (it should be "C:\\Users" not "C:\Users").
_SETUPTOOLS_SHIM = textwrap.dedent(
"""
exec(compile('''
# This is <pip-setuptools-caller> -- a caller that pip uses to run setup.py
#
# - It imports setuptools before invoking setup.py, to enable projects that directly
# import from `distutils.core` to work with newer packaging standards.
# - It provides a clear error message when setuptools is not installed.
# - It sets `sys.argv[0]` to the underlying `setup.py`, when invoking `setup.py` so
# setuptools doesn't think the script is `-c`. This avoids the following warning:
# manifest_maker: standard file '-c' not found".
# - It generates a shim setup.py, for handling setup.cfg-only projects.
import os, sys, tokenize
try:
import setuptools
except ImportError as error:
print(
"ERROR: Can not execute `setup.py` since setuptools is not available in "
"the build environment.",
file=sys.stderr,
)
sys.exit(1)
__file__ = %r
sys.argv[0] = __file__
if os.path.exists(__file__):
filename = __file__
with tokenize.open(__file__) as f:
setup_py_code = f.read()
else:
filename = "<auto-generated setuptools caller>"
setup_py_code = "from setuptools import setup; setup()"
exec(compile(setup_py_code, filename, "exec"))
''' % ({!r},), "<pip-setuptools-caller>", "exec"))
"""
).rstrip()
def make_setuptools_shim_args(
setup_py_path: str,
global_options: Optional[Sequence[str]] = None,
no_user_config: bool = False,
unbuffered_output: bool = False,
) -> List[str]:
"""
Get setuptools command arguments with shim wrapped setup file invocation.
:param setup_py_path: The path to setup.py to be wrapped.
:param global_options: Additional global options.
:param no_user_config: If True, disables personal user configuration.
:param unbuffered_output: If True, adds the unbuffered switch to the
argument list.
"""
args = [sys.executable]
if unbuffered_output:
args += ["-u"]
args += ["-c", _SETUPTOOLS_SHIM.format(setup_py_path)]
if global_options:
args += global_options
if no_user_config:
args += ["--no-user-cfg"]
return args
def make_setuptools_bdist_wheel_args(
setup_py_path: str,
global_options: Sequence[str],
build_options: Sequence[str],
destination_dir: str,
) -> List[str]:
# NOTE: Eventually, we'd want to also -S to the flags here, when we're
# isolating. Currently, it breaks Python in virtualenvs, because it
# relies on site.py to find parts of the standard library outside the
# virtualenv.
args = make_setuptools_shim_args(
setup_py_path, global_options=global_options, unbuffered_output=True
)
args += ["bdist_wheel", "-d", destination_dir]
args += build_options
return args
def make_setuptools_clean_args(
setup_py_path: str,
global_options: Sequence[str],
) -> List[str]:
args = make_setuptools_shim_args(
setup_py_path, global_options=global_options, unbuffered_output=True
)
args += ["clean", "--all"]
return args
def make_setuptools_develop_args(
setup_py_path: str,
*,
global_options: Sequence[str],
no_user_config: bool,
prefix: Optional[str],
home: Optional[str],
use_user_site: bool,
) -> List[str]:
assert not (use_user_site and prefix)
args = make_setuptools_shim_args(
setup_py_path,
global_options=global_options,
no_user_config=no_user_config,
)
args += ["develop", "--no-deps"]
if prefix:
args += ["--prefix", prefix]
if home is not None:
args += ["--install-dir", home]
if use_user_site:
args += ["--user", "--prefix="]
return args
def make_setuptools_egg_info_args(
setup_py_path: str,
egg_info_dir: Optional[str],
no_user_config: bool,
) -> List[str]:
args = make_setuptools_shim_args(setup_py_path, no_user_config=no_user_config)
args += ["egg_info"]
if egg_info_dir:
args += ["--egg-base", egg_info_dir]
return args
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