added try_catch for dotenv parsing and made print formatting more consistent

client/studytime-cli.py

@@ -7,12 +7,15 @@ from zoneinfo import ZoneInfo
 from pathlib import Path
 
 # load settings from .env
-load_dotenv()
-CALDAV_URL = os.environ["CALDAV_URL"]
-CALDAV_USER = os.environ["CALDAV_USER"]
-CALDAV_PASS = os.environ["CALDAV_PASS"]
-MODULES = os.environ["SUBJECTS"].split(",")
-TIME_ZONE = ZoneInfo(os.environ.get("TIMEZONE", "Europe/Berlin"))
+try:
+    load_dotenv()
+    CALDAV_URL = os.environ["CALDAV_URL"]
+    CALDAV_USER = os.environ["CALDAV_USER"]
+    CALDAV_PASS = os.environ["CALDAV_PASS"]
+    MODULES = os.environ["SUBJECTS"].split(",")
+    TIME_ZONE = ZoneInfo(os.environ.get("TIMEZONE", "Europe/Berlin"))
+except Exception:
+    print("Failed to read settings from .env!\nTake a look at .env.example for the required structure!")
 
 # apply
 client = caldav.DAVClient(
@@ -63,11 +66,13 @@ if backlog_path.exists():
             # and reattempt sync 
             try:
                 calendar.add_event(dtstart=start, dtend=end, summary=mod)
-                print(f"synced event '{mod}'")
+                print(f"# synced event '{mod}'")
             except Exception:
                 failed_synchs.append([mod,start,end])
+                print(f"failed to sync event '{mod}'")
 
     # overwrite file with failed syncs (if there are any)
+    backlog_path.unlink(missing_ok=True) # delete old file
     if failed_synchs:
         with open(backlog_path, "w") as fd:
             for mod, start, end in failed_synchs:
@@ -112,11 +117,11 @@ end = datetime.now(TIME_ZONE)
 print(f"\n# Stopped at {end:%H:%M:%S}")
 ans = ""
 while ans not in ["y", "n"]:
-    print("Do you want to sync this session? [y|n]")
+    print("# Do you want to sync this session? [y|n]")
     ans = input("> ").lower()
 
 if ans == "n":
-    print("# Stopping..")
+    print("Stopping..")
     exit(0)
 
 # sync