#!/usr/bin/env python

import os

import sys

from setuptools import setup, Extension

from setuptools.command.build_py import build_py

from setuptools.command.sdist import sdist

from distutils.spawn import find_executable

from glob import glob

sources = []

# If we have swig, use it. Otherwise, use the pre-generated

# wrapper from the source distribution.

if find_executable('swig'):

sources += ['wiringpi.i']

elif os.path.exists('wiringpi_wrap.c'):

sources += ['wiringpi_wrap.c']

else:

print("Error: Building this module requires either that swig is installed\n"

" (e.g., 'sudo apt install swig') or that wiringpi_wrap.c from the\n"

" source distribution (on pypi) is available.")

sys.exit(1)

# Fix so that build_ext runs before build_py

# Without this, wiringpi.py is generated too late and doesn't

# end up in the distribution when running setup.py bdist or bdist_wheel.

# Based on:

# https://stackoverflow.com/a/29551581/7938656

# and

# https://blog.niteoweb.com/setuptools-run-custom-code-in-setup-py/

class build_py_ext_first(build_py):

def run(self):

self.run_command("build_ext")

return build_py.run(self)

# Make sure wiringpi_wrap.c is available for the source dist, also.

class sdist_ext_first(sdist):

def run(self):

self.run_command("build_ext")

return sdist.run(self)

_wiringpi = Extension(

'_wiringpi',

sources=sources,

libraries=['crypt', 'rt', 'wiringPi', 'wiringPiDev']

)

setup(

name = 'wiringpi',

version = '2.44.4',

ext_modules = [ _wiringpi ],

py_modules = ["wiringpi"],

install_requires=[],

cmdclass = {'build_py' : build_py_ext_first, 'sdist' : sdist_ext_first},

)