""" A collection of function used from setup.py distutils script """#import sys, os, glob, subprocessimport distutils, distutils.command.clean, distutils.dir_utilfrom gen_external import generate_external, header, output_path from this_version import get_aubio_version # inspired from https://gist.github.com/abergmeier/9488990def add_packages(packages, ext=None, **kw):    """ use pkg-config to search which of 'packages' are installed """    flag_map = {        '-I': 'include_dirs',        '-L': 'library_dirs',        '-l': 'libraries'}     # if a setuptools extension is passed, fill it with pkg-config results    if ext:        kw = {'include_dirs': ext.include_dirs,              'extra_link_args': ext.extra_link_args,              'library_dirs': ext.library_dirs,              'libraries': ext.libraries,             }     for package in packages:        print("checking for {:s}".format(package))        cmd = ['pkg-config', '--libs', '--cflags', package]        try:            tokens = subprocess.check_output(cmd)        except Exception as e:            print("Running \"{:s}\" failed: {:s}".format(' '.join(cmd), repr(e)))            continue        tokens = tokens.decode('utf8').split()        for token in tokens:            key = token[:2]            try:                arg = flag_map[key]                value = token[2:]            except KeyError:                arg = 'extra_link_args'                value = token            kw.setdefault(arg, []).append(value)    for key, value in iter(kw.items()): # remove duplicated        kw[key] = list(set(value))    return kw def add_local_aubio_header(ext):    """ use local "src/aubio.h", not <aubio/aubio.h>"""    ext.define_macros += [('USE_LOCAL_AUBIO', 1)]    ext.include_dirs += ['src'] # aubio.h def add_local_aubio_lib(ext):    """ add locally built libaubio from build/src """    print("Info: using locally built libaubio")    ext.library_dirs += [os.path.join('build', 'src')]    ext.libraries += ['aubio'] def add_local_aubio_sources(ext):    """ build aubio inside python module instead of linking against libaubio """    print("Info: libaubio was not installed or built locally with waf, adding src/")    aubio_sources = sorted(glob.glob(os.path.join('src', '**.c')))    aubio_sources += sorted(glob.glob(os.path.join('src', '*', '**.c')))    ext.sources += aubio_sources def add_local_macros(ext, usedouble = False):    if usedouble:        ext.define_macros += [('HAVE_AUBIO_DOUBLE', 1)]    # define macros (waf puts them in build/src/config.h)    for define_macro in ['HAVE_STDLIB_H', 'HAVE_STDIO_H',                         'HAVE_MATH_H', 'HAVE_STRING_H',                         'HAVE_C99_VARARGS_MACROS',                         'HAVE_LIMITS_H', 'HAVE_STDARG_H',                         'HAVE_MEMCPY_HACKS']:        ext.define_macros += [(define_macro, 1)] def add_external_deps(ext, usedouble = False):    # loof for additional packages    print("Info: looking for *optional* additional packages")    packages = ['libavcodec', 'libavformat', 'libavutil',                'libswresample', 'libavresample',                'sndfile',                #'fftw3f',               ]    # samplerate only works with float    if usedouble is False:        packages += ['samplerate']    else:        print("Info: not adding libsamplerate in double precision mode")    add_packages(packages, ext=ext)    if 'avcodec' in ext.libraries \            and 'avformat' in ext.libraries \            and 'avutil' in ext.libraries:        if 'swresample' in ext.libraries:            ext.define_macros += [('HAVE_SWRESAMPLE', 1)]        elif 'avresample' in ext.libraries:            ext.define_macros += [('HAVE_AVRESAMPLE', 1)]        if 'swresample' in ext.libraries or 'avresample' in ext.libraries:            ext.define_macros += [('HAVE_LIBAV', 1)]    if 'sndfile' in ext.libraries:        ext.define_macros += [('HAVE_SNDFILE', 1)]    if 'samplerate' in ext.libraries:        ext.define_macros += [('HAVE_SAMPLERATE', 1)]    if 'fftw3f' in ext.libraries:        ext.define_macros += [('HAVE_FFTW3F', 1)]        ext.define_macros += [('HAVE_FFTW3', 1)]     # add accelerate on darwin    if sys.platform.startswith('darwin'):        ext.extra_link_args += ['-framework', 'Accelerate']        ext.define_macros += [('HAVE_ACCELERATE', 1)]        ext.define_macros += [('HAVE_SOURCE_APPLE_AUDIO', 1)]        ext.define_macros += [('HAVE_SINK_APPLE_AUDIO', 1)]     if sys.platform.startswith('win'):        ext.define_macros += [('HAVE_WIN_HACKS', 1)]     ext.define_macros += [('HAVE_WAVWRITE', 1)]    ext.define_macros += [('HAVE_WAVREAD', 1)]     # TODO: add cblas    if 0:        ext.libraries += ['cblas']        ext.define_macros += [('HAVE_ATLAS_CBLAS_H', 1)] def add_system_aubio(ext):    # use pkg-config to find aubio's location    aubio_version = get_aubio_version()    add_packages(['aubio = ' + aubio_version], ext)    if 'aubio' not in ext.libraries:        print("Info: aubio " + aubio_version + " was not found by pkg-config")    else:        print("Info: using system aubio " + aubio_version + " found in " + ' '.join(ext.library_dirs)) def add_libav_on_win(ext):    """ no pkg-config on windows, simply assume these libs are available """    ext.libraries += ['avformat', 'avutil', 'avcodec', 'swresample']    for define_macro in ['HAVE_LIBAV', 'HAVE_SWRESAMPLE']:        ext.define_macros += [(define_macro, 1)] class CleanGenerated(distutils.command.clean.clean):    def run(self):        if os.path.isdir(output_path):            distutils.dir_util.remove_tree(output_path) from distutils.command.build_ext import build_ext as _build_extclass build_ext(_build_ext):     user_options = _build_ext.user_options + [            # The format is (long option, short option, description).            ('enable-double', None, 'use HAVE_AUBIO_DOUBLE=1 (default: 0)'),            ]     def initialize_options(self):        _build_ext.initialize_options(self)        self.enable_double = False     def finalize_options(self):        _build_ext.finalize_options(self)        if self.enable_double:            self.announce(                    'will generate code for aubio compiled with HAVE_AUBIO_DOUBLE=1',                    level=distutils.log.INFO)     def build_extension(self, extension):        if self.enable_double or 'HAVE_AUBIO_DOUBLE' in os.environ:            enable_double = True        else:            enable_double = False        # seack for aubio headers and lib in PKG_CONFIG_PATH        add_system_aubio(extension)        # the lib was not installed on this system        if 'aubio' not in extension.libraries:            # use local src/aubio.h            if os.path.isfile(os.path.join('src', 'aubio.h')):                add_local_aubio_header(extension)            add_local_macros(extension, usedouble=enable_double)            # look for a local waf build            if os.path.isfile(os.path.join('build','src', 'fvec.c.1.o')):                add_local_aubio_lib(extension)            else:                # check for external dependencies                add_external_deps(extension, usedouble=enable_double)                # force adding libav on windows                if os.name == 'nt' and ('WITH_LIBAV' in os.environ \                        or 'CONDA_PREFIX' in os.environ):                    add_libav_on_win(extension)                # add libaubio sources and look for optional deps with pkg-config                add_local_aubio_sources(extension)        # generate files python/gen/*.c, python/gen/aubio-generated.h        extension.include_dirs += [ output_path ]        extension.sources += generate_external(header, output_path, overwrite = False,                usedouble=enable_double)        return _build_ext.build_extension(self, extension)