setup.py

#!/usr/bin/env python
import os
import subprocess
import time

import torch
from setuptools import find_packages, setup
from torch.utils.cpp_extension import BuildExtension, CUDAExtension


def readme():
    with open('README.md', encoding='utf-8') as f:
        content = f.read()
    return content


MAJOR = 0
MINOR = 2
PATCH = 0
SUFFIX = ''
if PATCH != '':
    SHORT_VERSION = '{}.{}.{}{}'.format(MAJOR, MINOR, PATCH, SUFFIX)
else:
    SHORT_VERSION = '{}.{}{}'.format(MAJOR, MINOR, SUFFIX)

version_file = 'mmsr/version.py'


def get_git_hash():

    def _minimal_ext_cmd(cmd):
        # construct minimal environment
        env = {}
        for k in ['SYSTEMROOT', 'PATH', 'HOME']:
            v = os.environ.get(k)
            if v is not None:
                env[k] = v
        # LANGUAGE is used on win32
        env['LANGUAGE'] = 'C'
        env['LANG'] = 'C'
        env['LC_ALL'] = 'C'
        out = subprocess.Popen(
            cmd, stdout=subprocess.PIPE, env=env).communicate()[0]
        return out

    try:
        out = _minimal_ext_cmd(['git', 'rev-parse', 'HEAD'])
        sha = out.strip().decode('ascii')
    except OSError:
        sha = 'unknown'

    return sha


def get_hash():
    if os.path.exists('.git'):
        sha = get_git_hash()[:7]
    elif os.path.exists(version_file):
        try:
            from mmsr.version import __version__
            sha = __version__.split('+')[-1]
        except ImportError:
            raise ImportError('Unable to get git version')
    else:
        sha = 'unknown'

    return sha


def write_version_py():
    content = """# GENERATED VERSION FILE
# TIME: {}

__version__ = '{}'
short_version = '{}'
"""
    sha = get_hash()
    VERSION = SHORT_VERSION + '+' + sha

    with open(version_file, 'w') as f:
        f.write(content.format(time.asctime(), VERSION, SHORT_VERSION))


def get_version():
    with open(version_file, 'r') as f:
        exec(compile(f.read(), version_file, 'exec'))
    return locals()['__version__']


def make_cuda_ext(name, module, sources):

    define_macros = []

    if torch.cuda.is_available() or os.getenv('FORCE_CUDA', '0') == '1':
        define_macros += [('WITH_CUDA', None)]
    else:
        raise EnvironmentError('CUDA is required to compile!')

    return CUDAExtension(
        name='{}.{}'.format(module, name),
        sources=[os.path.join(*module.split('.'), p) for p in sources],
        define_macros=define_macros,
        extra_compile_args={
            'cxx': [],
            'nvcc': [
                '-D__CUDA_NO_HALF_OPERATORS__',
                '-D__CUDA_NO_HALF_CONVERSIONS__',
                '-D__CUDA_NO_HALF2_OPERATORS__',
            ]
        })


def get_requirements(filename='requirements.txt'):
    here = os.path.dirname(os.path.realpath(__file__))
    with open(os.path.join(here, filename), 'r') as f:
        requires = [line.replace('\n', '') for line in f.readlines()]
    return requires


if __name__ == '__main__':
    write_version_py()
    setup(
        name='mmsr',
        version=get_version(),
        description='Open MMLab Image and Video Super-Resolution Toolbox',
        long_description=readme(),
        author='OpenMMLab',
        author_email='xintao.alpha@gmail.com',
        keywords='computer vision, super resolution',
        url='https://github.com/open-mmlab/mmsr',
        packages=find_packages(
            exclude=('options', 'datasets', 'experiments', 'results',
                     'tb_logger')),
        classifiers=[
            'Development Status :: 4 - Beta',
            'License :: OSI Approved :: Apache Software License',
            'Operating System :: OS Independent',
            'Programming Language :: Python :: 3',
            'Programming Language :: Python :: 3.5',
            'Programming Language :: Python :: 3.6',
            'Programming Language :: Python :: 3.7',
        ],
        license='Apache License 2.0',
        setup_requires=['pytest-runner', 'cython', 'numpy'],
        tests_require=['pytest', 'xdoctest'],
        install_requires=get_requirements(),
        ext_modules=[
            make_cuda_ext(
                name='deform_conv_cuda',
                module='mmsr.models.archs.dcn',
                sources=[
                    'src/deform_conv_cuda.cpp',
                    'src/deform_conv_cuda_kernel.cu'
                ]),
        ],
        cmdclass={'build_ext': BuildExtension},
        zip_safe=False)