107 lines
3.3 KiB
Python
107 lines
3.3 KiB
Python
![]() |
"""Helpers to check build environment before actual build of scikit-learn"""
|
||
|
|
||
|
import os
|
||
|
import sys
|
||
|
import glob
|
||
|
import tempfile
|
||
|
import textwrap
|
||
|
import setuptools # noqa
|
||
|
import subprocess
|
||
|
|
||
|
from distutils.dist import Distribution
|
||
|
from distutils.sysconfig import customize_compiler
|
||
|
from numpy.distutils.ccompiler import new_compiler
|
||
|
from numpy.distutils.command.config_compiler import config_cc
|
||
|
|
||
|
|
||
|
def _get_compiler():
|
||
|
"""Get a compiler equivalent to the one that will be used to build sklearn
|
||
|
|
||
|
Handles compiler specified as follows:
|
||
|
- python setup.py build_ext --compiler=<compiler>
|
||
|
- CC=<compiler> python setup.py build_ext
|
||
|
"""
|
||
|
dist = Distribution({'script_name': os.path.basename(sys.argv[0]),
|
||
|
'script_args': sys.argv[1:],
|
||
|
'cmdclass': {'config_cc': config_cc}})
|
||
|
dist.parse_config_files()
|
||
|
dist.parse_command_line()
|
||
|
|
||
|
cmd_opts = dist.command_options.get('build_ext')
|
||
|
if cmd_opts is not None and 'compiler' in cmd_opts:
|
||
|
compiler = cmd_opts['compiler'][1]
|
||
|
else:
|
||
|
compiler = None
|
||
|
|
||
|
ccompiler = new_compiler(compiler=compiler)
|
||
|
customize_compiler(ccompiler)
|
||
|
|
||
|
return ccompiler
|
||
|
|
||
|
|
||
|
def compile_test_program(code, extra_preargs=[], extra_postargs=[]):
|
||
|
"""Check that some C code can be compiled and run"""
|
||
|
ccompiler = _get_compiler()
|
||
|
|
||
|
# extra_(pre/post)args can be a callable to make it possible to get its
|
||
|
# value from the compiler
|
||
|
if callable(extra_preargs):
|
||
|
extra_preargs = extra_preargs(ccompiler)
|
||
|
if callable(extra_postargs):
|
||
|
extra_postargs = extra_postargs(ccompiler)
|
||
|
|
||
|
start_dir = os.path.abspath('.')
|
||
|
|
||
|
with tempfile.TemporaryDirectory() as tmp_dir:
|
||
|
try:
|
||
|
os.chdir(tmp_dir)
|
||
|
|
||
|
# Write test program
|
||
|
with open('test_program.c', 'w') as f:
|
||
|
f.write(code)
|
||
|
|
||
|
os.mkdir('objects')
|
||
|
|
||
|
# Compile, test program
|
||
|
ccompiler.compile(['test_program.c'], output_dir='objects',
|
||
|
extra_postargs=extra_postargs)
|
||
|
|
||
|
# Link test program
|
||
|
objects = glob.glob(
|
||
|
os.path.join('objects', '*' + ccompiler.obj_extension))
|
||
|
ccompiler.link_executable(objects, 'test_program',
|
||
|
extra_preargs=extra_preargs,
|
||
|
extra_postargs=extra_postargs)
|
||
|
|
||
|
if "PYTHON_CROSSENV" not in os.environ:
|
||
|
# Run test program if not cross compiling
|
||
|
# will raise a CalledProcessError if return code was non-zero
|
||
|
output = subprocess.check_output('./test_program')
|
||
|
output = output.decode(
|
||
|
sys.stdout.encoding or 'utf-8').splitlines()
|
||
|
else:
|
||
|
# Return an empty output if we are cross compiling
|
||
|
# as we cannot run the test_program
|
||
|
output = []
|
||
|
except Exception:
|
||
|
raise
|
||
|
finally:
|
||
|
os.chdir(start_dir)
|
||
|
|
||
|
return output
|
||
|
|
||
|
|
||
|
def basic_check_build():
|
||
|
"""Check basic compilation and linking of C code"""
|
||
|
if "PYODIDE_PACKAGE_ABI" in os.environ:
|
||
|
# The following check won't work in pyodide
|
||
|
return
|
||
|
code = textwrap.dedent(
|
||
|
"""\
|
||
|
#include <stdio.h>
|
||
|
int main(void) {
|
||
|
return 0;
|
||
|
}
|
||
|
""")
|
||
|
compile_test_program(code)
|