setup.py

########################################################################
#
#       License: BSD 3-clause
#       Created: September 22, 2010
#       Author:  The Blosc development team
#
########################################################################

# flake8: noqa

import os
import sys

from skbuild import setup
from textwrap import dedent


if __name__ == '__main__':

    try:
        import cpuinfo
        cpu_info = cpuinfo.get_cpu_info()
    except Exception:
        # newer cpuinfo versions fail to import on unsupported architectures
        cpu_info = None

    ########### Check versions ##########
    def exit_with_error(message):
        print('ERROR: %s' % message)
        sys.exit(1)

    ########### End of checks ##########

    # Read the long_description from README.rst
    with open('README.rst') as f:
        long_description = f.read()

    # Blosc version
    with open('VERSION') as f:
        VERSION = f.read().strip()

    # Create the version.py file
    with open('blosc/version.py', 'w') as f:
        f.write('__version__ = "%s"\n' % VERSION)

    def cmake_bool(cond):
        return 'ON' if cond else 'OFF'

    classifiers = dedent("""\
    Development Status :: 5 - Production/Stable
    Intended Audience :: Developers
    Intended Audience :: Information Technology
    Intended Audience :: Science/Research
    License :: OSI Approved :: BSD License
    Programming Language :: Python :: 3
    Programming Language :: Python :: 3.9
    Programming Language :: Python :: 3.10
    Programming Language :: Python :: 3.11
    Programming Language :: Python :: 3.12
    Programming Language :: Python :: 3 :: Only
    Topic :: Software Development :: Libraries :: Python Modules
    Topic :: System :: Archiving :: Compression
    Operating System :: Microsoft :: Windows
    Operating System :: Unix
    """)

    setup(name = "blosc",
        version = VERSION,
        description = 'Blosc data compressor',
        long_description = long_description,
        classifiers = [c for c in classifiers.split("\n") if c],
        python_requires=">=3.9",
        author = 'The Blosc development team',
        author_email = 'blosc@blosc.org',
        maintainer = 'The Blosc development team',
        maintainer_email = 'blosc@blosc.org',
        url = 'https://github.com/blosc/python-blosc',
        license = 'https://opensource.org/licenses/BSD-3-Clause',
        platforms = ['any'],
        cmake_args = (
          ['-DUSE_SYSTEM_BLOSC:BOOL=ON'] if int(os.environ.get('USE_SYSTEM_BLOSC', '0'))
          else [
           '-DUSE_SYSTEM_BLOSC:BOOL=OFF',
           '-DDEACTIVATE_SSE2:BOOL=%s' % cmake_bool(('DISABLE_BLOSC_SSE2' in os.environ) or
                                                    (cpu_info is None) or
                                                    ('flags' in cpu_info and 'sse2' not in cpu_info['flags'])),
           '-DDEACTIVATE_AVX2:BOOL=%s' % cmake_bool(('DISABLE_BLOSC_AVX2' in os.environ) or
                                                    (cpu_info is None) or
                                                    ('flags' in cpu_info and 'avx2' not in cpu_info['flags'])),
           '-DDEACTIVATE_LZ4:BOOL=%s' % cmake_bool(not int(os.environ.get('INCLUDE_LZ4', '1'))),
           # Snappy is disabled by default
           '-DDEACTIVATE_SNAPPY:BOOL=%s' % cmake_bool(not int(os.environ.get('INCLUDE_SNAPPY', '0'))),
           '-DDEACTIVATE_ZLIB:BOOL=%s' % cmake_bool(not int(os.environ.get('INCLUDE_ZLIB', '1'))),
           '-DDEACTIVATE_ZSTD:BOOL=%s' % cmake_bool(not int(os.environ.get('INCLUDE_ZSTD', '1'))),
           ]),
        setup_requires=['scikit-build'],
        tests_require=['numpy', 'psutil'],
        packages = ['blosc'],
        )
elif __name__ == '__mp_main__':
    # This occurs from `cpuinfo 4.0.0` using multiprocessing to interrogate the
    # CPUID flags
    # https://github.com/workhorsy/py-cpuinfo/issues/108
    pass