def _get_pkg_info_filepath()

in chalice/deploy/packager.py [0:0]

• 42 lines of code
• 4 McCabe index (conditional complexity)

    def _get_pkg_info_filepath(self, package_dir: str) -> str:
        setup_py = self._osutils.joinpath(package_dir, 'setup.py')
        script = self._SETUPTOOLS_SHIM % setup_py

        cmd = [
            sys.executable,
            '-c',
            script,
            '--no-user-cfg',
            'egg_info',
            '--egg-base',
            'egg-info',
        ]
        egg_info_dir = self._osutils.joinpath(package_dir, 'egg-info')
        self._osutils.makedirs(egg_info_dir)
        p = subprocess.Popen(
            cmd,
            cwd=package_dir,
            stdout=subprocess.PIPE,
            stderr=subprocess.PIPE,
        )
        _, stderr = p.communicate()
        if p.returncode != 0:
            logger.debug(
                "Non zero rc (%s) from the setup.py egg_info command: %s",
                p.returncode,
                stderr,
            )
        info_contents = self._osutils.get_directory_contents(egg_info_dir)
        if info_contents:
            pkg_info_path = self._osutils.joinpath(
                egg_info_dir, info_contents[0], 'PKG-INFO'
            )
        else:
            # This might be a pep 517 package in which case this PKG-INFO file
            # should be available right in the top level directory of the sdist
            # in the case where the egg_info command fails.
            logger.debug(
                "Using fallback location for PKG-INFO file in "
                "package directory: %s",
                package_dir,
            )
            pkg_info_path = self._osutils.joinpath(package_dir, 'PKG-INFO')
        if not self._osutils.file_exists(pkg_info_path):
            raise UnsupportedPackageError(self._osutils.basename(package_dir))
        return pkg_info_path