WIP: Investigate using CFFI's API mode

setup.py

@@ -1,77 +1,26 @@
-import os
-import platform
 from setuptools import setup
 
 __version__ = 'unknown'
 
 # "import" __version__
-for line in open('sounddevice.py'):
+for line in open('src/sounddevice.py'):
     if line.startswith('__version__'):
         exec(line)
         break
 
-PYTHON_INTERPRETERS = '.'.join([
-    'cp26', 'cp27',
-    'cp32', 'cp33', 'cp34', 'cp35', 'cp36',
-    'pp27',
-    'pp32', 'pp33', 'pp34', 'pp35', 'pp36',
-])
-MACOSX_VERSIONS = '.'.join([
-    'macosx_10_6_x86_64',
-])
-
-# environment variables for cross-platform package creation
-system = os.environ.get('PYTHON_SOUNDDEVICE_PLATFORM', platform.system())
-architecture0 = os.environ.get('PYTHON_SOUNDDEVICE_ARCHITECTURE',
-                               platform.architecture()[0])
-
-if system == 'Darwin':
-    libname = 'libportaudio.dylib'
-elif system == 'Windows':
-    libname = 'libportaudio' + architecture0 + '.dll'
-else:
-    libname = None
-
-if libname and os.path.isdir('_sounddevice_data'):
-    packages = ['_sounddevice_data']
-    package_data = {'_sounddevice_data': [libname, 'README.md']}
-    zip_safe = False
-else:
-    packages = None
-    package_data = None
-    zip_safe = True
-
-try:
-    from wheel.bdist_wheel import bdist_wheel
-except ImportError:
-    cmdclass = {}
-else:
-    class bdist_wheel_half_pure(bdist_wheel):
-        """Create OS-dependent, but Python-independent wheels."""
-        def get_tag(self):
-            pythons = 'py2.py3.' + PYTHON_INTERPRETERS
-            if system == 'Darwin':
-                oses = MACOSX_VERSIONS
-            elif system == 'Windows':
-                if architecture0 == '32bit':
-                    oses = 'win32'
-                else:
-                    oses = 'win_amd64'
-            else:
-                pythons = 'py2.py3'
-                oses = 'any'
-            return pythons, 'none', oses
-
-    cmdclass = {'bdist_wheel': bdist_wheel_half_pure}
-
 setup(
     name='sounddevice',
     version=__version__,
+    package_dir={'': 'src'},
     py_modules=['sounddevice'],
-    packages=packages,
-    package_data=package_data,
-    zip_safe=zip_safe,
-    install_requires=['CFFI>=1.0'],
+    cffi_modules=['sounddevice_build.py:ffibuilder'],
+    setup_requires=[
+        'CFFI>=1.4.0',
+    ],
+    install_requires=[
+        'CFFI>=1',  # for _cffi_backend
+    ],
+    zip_safe=True,
     extras_require={'NumPy': ['NumPy']},
     author='Matthias Geier',
     author_email='[email protected]',
@@ -89,5 +38,4 @@ def get_tag(self):
         'Programming Language :: Python :: 3',
         'Topic :: Multimedia :: Sound/Audio',
     ],
-    cmdclass=cmdclass,
 )