"""Das OS shell tools: dprompt (bash prompt builder) and dbanner (login banner editor)."""

import os

VERSION = "0.1.0"

# Installed layout; DAS_SHELL_DATA points the tools at the source tree for tests
DATA_DIR = os.environ.get("DAS_SHELL_DATA", "/usr/share/das")
LIB_DIR = os.environ.get("DAS_SHELL_LIB", "/usr/lib/das")
ETC_DIR = os.environ.get("DAS_SHELL_ETC", "/etc/das")
CACHE_DIR = os.environ.get("DAS_SHELL_CACHE", "/var/cache/das/banner")


def config_dir():
    """The user's Das OS settings directory (~/.config/das)."""
    base = os.environ.get("XDG_CONFIG_HOME") or os.path.expanduser("~/.config")
    return os.path.join(base, "das")