""" module providing useful filesystem paths """ import pathlib import sys import os try: _workspace_dir = pathlib.Path(os.environ['BUILD_WORKSPACE_DIRECTORY']) # <- means we are using bazel run swift_dir = _workspace_dir / 'swift' lib_dir = swift_dir / 'codegen' / 'lib' except KeyError: _this_file = pathlib.Path(__file__).resolve() swift_dir = _this_file.parents[2] lib_dir = _this_file.parent exe_file = pathlib.Path(sys.argv[0]).resolve()