Function ensure_runtime_dirs

src/harness/paths.py:178–191

Create the runtime directories and export env vars for subprocesses. Idempotent. Safe to call from any entry point before path-dependent work. Exports ``HOST_WORKSPACE`` and ``WORKSPACE_PERSISTENT`` so Docker containers and shell scripts spawned by the current process see the same absol

()

def ensure_runtime_dirs() -> None:
    """Create the runtime directories and export env vars for subprocesses.

    Idempotent. Safe to call from any entry point before path-dependent work.
    Exports ``HOST_WORKSPACE`` and ``WORKSPACE_PERSISTENT`` so Docker containers
    and shell scripts spawned by the current process see the same absolute
    paths Python is using.
    """
    ws = host_workspace()
    wp = workspace_persistent()
    ws.mkdir(parents=True, exist_ok=True)
    (wp / "outputs").mkdir(parents=True, exist_ok=True)
    os.environ.setdefault("HOST_WORKSPACE", str(ws))
    os.environ.setdefault("WORKSPACE_PERSISTENT", str(wp))