49 lines
1.3 KiB
Python
49 lines
1.3 KiB
Python
"""
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env_loader.py – lädt Verbindungsparameter aus .env (Repo-Root oder Arbeitsverzeichnis).
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Umgebungsvariablen haben Vorrang vor .env-Werten.
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"""
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import os
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import sys
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import pathlib
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_BASE = pathlib.Path(sys.executable).parent if getattr(sys, "frozen", False) else pathlib.Path(__file__).parent
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def _find_env_file() -> pathlib.Path | None:
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for base in (_BASE, _BASE.parent):
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p = base / ".env"
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if p.is_file():
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return p
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return None
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def _load_env_file(path: pathlib.Path):
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with open(path, encoding="utf-8") as f:
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for line in f:
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line = line.strip()
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if not line or line.startswith("#") or "=" not in line:
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continue
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key, _, val = line.partition("=")
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key = key.strip()
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val = val.strip()
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if key and key not in os.environ:
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os.environ[key] = val
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_env_path = _find_env_file()
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if _env_path:
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_load_env_file(_env_path)
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def get(key: str, default: str = "") -> str:
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return os.environ.get(key, default)
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# Häufig verwendete Shortcuts
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PRINTER_IP = get("PRINTER_IP", "")
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MQTT_PORT = int(get("MQTT_PORT", "9883"))
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USERNAME = get("MQTT_USERNAME", "")
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PASSWORD = get("MQTT_PASSWORD", "")
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MODE_ID = get("MODE_ID", "")
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DEVICE_ID = get("DEVICE_ID", "")
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