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113 lines
3.3 KiB
113 lines
3.3 KiB
"""Script to build and install decoder package."""
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from __future__ import absolute_import
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from __future__ import division
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from __future__ import print_function
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from setuptools import setup, Extension, distutils
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import glob
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import platform
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import os, sys
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import multiprocessing.pool
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import argparse
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parser = argparse.ArgumentParser(description=__doc__)
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parser.add_argument(
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"--num_processes",
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default=1,
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type=int,
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help="Number of cpu processes to build package. (default: %(default)d)")
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args = parser.parse_known_args()
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# reconstruct sys.argv to pass to setup below
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sys.argv = [sys.argv[0]] + args[1]
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# monkey-patch for parallel compilation
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# See: https://stackoverflow.com/a/13176803
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def parallelCCompile(self,
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sources,
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output_dir=None,
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macros=None,
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include_dirs=None,
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debug=0,
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extra_preargs=None,
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extra_postargs=None,
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depends=None):
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# those lines are copied from distutils.ccompiler.CCompiler directly
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macros, objects, extra_postargs, pp_opts, build = self._setup_compile(
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output_dir, macros, include_dirs, sources, depends, extra_postargs)
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cc_args = self._get_cc_args(pp_opts, debug, extra_preargs)
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# parallel code
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def _single_compile(obj):
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try:
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src, ext = build[obj]
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except KeyError:
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return
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self._compile(obj, src, ext, cc_args, extra_postargs, pp_opts)
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# convert to list, imap is evaluated on-demand
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thread_pool = multiprocessing.pool.ThreadPool(args[0].num_processes)
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list(thread_pool.imap(_single_compile, objects))
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return objects
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def compile_test(header, library):
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dummy_path = os.path.join(os.path.dirname(__file__), "dummy")
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command = "bash -c \"g++ -include " + header \
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+ " -l" + library + " -x c++ - <<<'int main() {}' -o " \
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+ dummy_path + " >/dev/null 2>/dev/null && rm " \
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+ dummy_path + " 2>/dev/null\""
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return os.system(command) == 0
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# hack compile to support parallel compiling
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distutils.ccompiler.CCompiler.compile = parallelCCompile
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FILES = glob.glob('kenlm/util/*.cc') \
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+ glob.glob('kenlm/lm/*.cc') \
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+ glob.glob('kenlm/util/double-conversion/*.cc')
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FILES += glob.glob('openfst-1.6.3/src/lib/*.cc')
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FILES = [
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fn for fn in FILES if not (fn.endswith('main.cc') or fn.endswith('test.cc'))
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]
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LIBS = ['stdc++']
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if platform.system() != 'Darwin':
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LIBS.append('rt')
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ARGS = ['-O3', '-DNDEBUG', '-DKENLM_MAX_ORDER=6', '-std=c++11']
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if compile_test('zlib.h', 'z'):
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ARGS.append('-DHAVE_ZLIB')
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LIBS.append('z')
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if compile_test('bzlib.h', 'bz2'):
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ARGS.append('-DHAVE_BZLIB')
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LIBS.append('bz2')
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if compile_test('lzma.h', 'lzma'):
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ARGS.append('-DHAVE_XZLIB')
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LIBS.append('lzma')
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os.system('swig -python -c++ ./decoders.i')
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decoders_module = [
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Extension(
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name='_swig_decoders',
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sources=FILES + glob.glob('*.cxx') + glob.glob('*.cpp'),
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language='c++',
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include_dirs=['.', 'kenlm', 'openfst-1.6.3/src/include', 'ThreadPool'],
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libraries=LIBS,
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extra_compile_args=ARGS)
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]
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setup(
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name='swig_decoders',
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version='0.1',
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description="""CTC decoders""",
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ext_modules=decoders_module,
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py_modules=['swig_decoders'], )
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