bot: move .env to root dir

Author: jdavid

WWCS/irrigation/telegramBot/bot.py

@@ -12,19 +12,18 @@
 from databases import Database
 from telebot import types
 from telebot.async_telebot import AsyncTeleBot
-import dotenv
 import traceback
 
+from common import USERNAME, PASSWORD
+
+
 # Configuration
-dotenv.load_dotenv()
-DB_USERNAME = os.environ.get('DB_USERNAME', 'root')
-DB_PASSWORD = os.environ['DB_PASSWORD']
 BOT_TOKEN = os.environ['BOT_TOKEN']
 LANGUAGE = os.environ.get('LANGUAGE', 'en')
 TIMEZONE = os.environ.get('TIMEZONE')  # Defaults to local timezone
 
 # Database
-DATABASE_URL = f'mysql+asyncmy://{DB_USERNAME}:{DB_PASSWORD}@localhost:3306/SitesHumans'
+DATABASE_URL = f'mysql+asyncmy://{USERNAME}:{PASSWORD}@localhost:3306/SitesHumans'
 database = Database(DATABASE_URL)
 
 # Initialize gettext

WWCS/irrigation/telegramBot/common.py

@@ -0,0 +1,29 @@
+import os
+import pathlib
+
+import dotenv
+
+
+def get_rootdir():
+    """
+    Returns the absolute path to the project's root directory (or working directory in
+    Git's parlance).
+    """
+    current_dir = pathlib.Path(__file__).parent.resolve()
+    while current_dir != current_dir.parent:
+        env_path = current_dir / '.git'
+        if env_path.exists():
+            return current_dir
+
+        current_dir = current_dir.parent
+
+
+# Load the .env file, in production this must be /home/wwcs/wwcs/.env
+# Or more generally {ROOT-DIRECTORY}/.env (in local development the root directory
+# may be somewhere else than /home/wwcs/wwcs)
+ROOT_DIR = get_rootdir()
+dotenv.load_dotenv(ROOT_DIR / '.env')
+
+
+USERNAME = os.environ.get('DB_USERNAME', 'wwcs')
+PASSWORD = os.environ.get('DB_PASSWORD')