"""module providing useful filesystem paths"""

import pathlib
import sys
import os

_this_file = pathlib.Path(__file__).resolve()

try:
    workspace_dir = pathlib.Path(
        os.environ["BUILD_WORKSPACE_DIRECTORY"]
    ).resolve()  # <- means we are using bazel run
    root_dir = workspace_dir / "swift"
except KeyError:
    root_dir = _this_file.parents[2]
    workspace_dir = root_dir.parent

lib_dir = _this_file.parents[2] / "codegen" / "lib"
templates_dir = _this_file.parents[2] / "codegen" / "templates"

exe_file = pathlib.Path(sys.argv[0]).resolve()