move cli flies into new directory

Author: c4bae

gs/backend/cli.py gs/backend/gs_cli/cli.pygs/backend/cli.py renamed to gs/backend/gs_cli/cli.py

@@ -5,15 +5,15 @@
 from sys import argv
 from typing import cast
 
-from serial import Serial
+from serial import Serial, SerialException
 from textual import on
 from textual.app import App, ComposeResult
 from textual.containers import HorizontalGroup, HorizontalScroll, ScrollableContainer, VerticalScroll
 from textual.reactive import reactive
 from textual.widget import Widget
 from textual.widgets import Button, DataTable, Input, Label, Static
 
-from gs.backend.ground_station_cli import GroundStationShell
+from gs.backend.gs_cli.ground_station_cli import GroundStationShell
 
 if len(argv) == 2:
     COM_PORT = argv[1]
@@ -301,15 +301,20 @@ def compose(self) -> ComposeResult:
 
 def main() -> None:
     """
-    Usage: Entry point for the CLI application; opens the serial port at the com port and runs the ground station cli.
+    Entry point for the CLI application; opens the serial port at the com port and runs the ground station cli.
     """
     if len(argv) != 2:
         print("One argument needed: Com Port")
         return
 
-    ser = Serial(COM_PORT)
-    print("Comm port set to: " + str(ser.name))
-    ser.close()
+    try:
+        ser = Serial(COM_PORT)
+        print("Comm port set to: " + str(ser.name))
+        ser.close()
+    
+    except SerialException as e:
+        print(f"An error occurred while opening the serial port: {e}")
+    
 
     app = CLIWindow()
     app.run()