Class CythonRecipe

pythonforandroid/recipe.py:1126–1233

class CythonRecipe(PythonRecipe):
    pre_build_ext = False
    cythonize = True
    cython_args = []
    call_hostpython_via_targetpython = False

    def build_arch(self, arch):
        '''Build any cython components, then install the Python module by
        calling pip install with the target Python dir.
        '''
        Recipe.build_arch(self, arch)
        self.build_cython_components(arch)
        self.install_python_package(arch)

    def build_cython_components(self, arch):
        info('Cythonizing anything necessary in {}'.format(self.name))

        env = self.get_recipe_env(arch)

        with current_directory(self.get_build_dir(arch.arch)):
            hostpython = sh.Command(self.ctx.hostpython)
            shprint(hostpython, '-c', 'import sys; print(sys.path)', _env=env)
            debug('cwd is {}'.format(realpath(curdir)))
            info('Trying first build of {} to get cython files: this is '
                 'expected to fail'.format(self.name))

            manually_cythonise = False
            try:
                shprint(hostpython, 'setup.py', 'build_ext', '-v', _env=env,
                        *self.setup_extra_args)
            except sh.ErrorReturnCode_1:
                print()
                info('{} first build failed (as expected)'.format(self.name))
                manually_cythonise = True

            if manually_cythonise:
                self.cythonize_build(env=env)
                shprint(hostpython, 'setup.py', 'build_ext', '-v', _env=env,
                        _tail=20, _critical=True, *self.setup_extra_args)
            else:
                info('First build appeared to complete correctly, skipping manual'
                     'cythonising.')

            if not self.ctx.with_debug_symbols:
                self.strip_object_files(arch, env)

    def strip_object_files(self, arch, env, build_dir=None):
        if build_dir is None:
            build_dir = self.get_build_dir(arch.arch)
        with current_directory(build_dir):
            info('Stripping object files')
            shprint(sh.find, '.', '-iname', '*.so', '-exec',
                    '/usr/bin/echo', '{}', ';', _env=env)
            shprint(sh.find, '.', '-iname', '*.so', '-exec',
                    env['STRIP'].split(' ')[0], '--strip-unneeded',
                    # '/usr/bin/strip', '--strip-unneeded',
                    '{}', ';', _env=env)