added config loading from .env

.env.example

@@ -0,0 +1,4 @@
+CARDDAV_URL=
+CARDDAV_USER=
+CARDDAV_PASSWORD=
+CARDDAV_IGNORE_STR=

.gitignore

@@ -2,4 +2,3 @@
 **/venv
 **/.env
 **/*.pyc
-key

app.py

@@ -1,17 +1,19 @@
+import logging
+
+logging.basicConfig(level=logging.INFO)
+
 from flask import Flask, render_template
 import sys, os
 
 from src.carddav import print_contacts, get_contacts
 from src.person import Person
 
+from src import config
+
 app = Flask(__name__)
 
 if __name__ == "__main__":
-    if len(sys.argv) != 4:
-        print(f"Usage: {sys.argv[0]} <url> <user> <password>")
-        sys.exit(1)
-
-    contacts = get_contacts(sys.argv[1], sys.argv[2], sys.argv[3])
+    contacts = get_contacts(config.CARDDAV_URL, config.CARDDAV_USER, config.CARDDAV_PASSWORD)
     print_contacts(contacts)
 
-    app.run(host="0.0.0.0", port=8080, debug=True, use_reloader=False)
+    #app.run(host="0.0.0.0", port=8080, debug=True, use_reloader=False)

requirements.txt

@@ -2,12 +2,15 @@ blinker==1.9.0
 certifi==2026.7.22
 charset-normalizer==3.5.1
 click==8.4.2
+dotenv==0.9.9
 Flask==3.1.3
 idna==3.18
 itsdangerous==2.2.0
 Jinja2==3.1.6
+logging==0.4.9.6
 MarkupSafe==3.0.3
 python-dateutil==2.9.0.post0
+python-dotenv==1.2.2
 pytz==2026.3.post1
 requests==2.34.2
 six==1.17.0

src/config.py

@@ -0,0 +1,17 @@
+import sys, os, logging
+from dotenv import load_dotenv 
+
+logger = logging.getLogger(__name__)
+
+try:
+    load_dotenv()
+    CARDDAV_URL = os.environ["CARDDAV_URL"]
+    CARDDAV_USER = os.environ["CARDDAV_USER"]
+    CARDDAV_PASSWORD = os.environ["CARDDAV_PASSWORD"]
+    CARDDAV_IGNORE_STR = os.environ["CARDDAV_IGNORE_STR"]
+
+    logger.info("Config loaded!")
+    
+except Exception:
+    logger.exception("Failed to load config from .env!")
+    sys.exit(1)

src/person.py

@@ -1,6 +1,8 @@
 import vobject 
 from datetime import date, datetime
 
+from src import config
+
 class Person:
     def __init__(self, vcard):
         self.vcard = vcard
@@ -37,7 +39,7 @@ class Person:
         # check if we should ignore this contact
         # ignore when no name was found or an explicit tag is found in its notes
 
-        if hasattr(self.vcard, "note") and ("<ignore>" in self.vcard.note.value):
+        if hasattr(self.vcard, "note") and (config.CARDDAV_IGNORE_STR in self.vcard.note.value):
             return False
 
         if (not self.name):