removing unusing cose, adding docstrings

sierra_status/src/cli.py

@@ -9,42 +9,63 @@
 DEFAULT_BAUDRATE = 115200
 
 def setup_logging(verbose: bool) -> None:
+    """
+    Sets up the logging configuration based on the provided verbosity level.
+
+    Args:
+        verbose (bool): If True, sets the log level to DEBUG, otherwise sets it to INFO.
+
+    Returns:
+        None
+    """
     log_level = logging.DEBUG if verbose else logging.INFO
     logging.basicConfig(level=log_level)
 
 def validate_port(port: str) -> None:
+    """
+    Validates that the specified USB port exists on the system.
+
+    Args:
+        port (str): The USB port to validate.
+
+    Raises:
+        ValueError: If the specified USB port does not exist.
+    """
     if not os.path.exists(port):
         raise ValueError(f"The specified port '{port}' does not exist.")
 
-# def validate_port(port: str) -> None:
-#     if sys.platform.startswith('win'):
-#         # For Windows, we can't easily validate COM ports
-#         # We could potentially use the winreg module to check available ports
-#         logging.warning("Windows does not have a built-in way to validate COM ports.")
-#         pass
-#     else:
-#         # For Unix-like systems, check if the device file exists
-#         if not os.path.exists(port):
-#             raise ValueError(f"The specified port '{port}' does not exist.")
-
 def main() -> None:
+    """
+    The main entry point for the Sierra Wireless EM9xxx/EM7xxx CLI tool.
+
+    This function sets up the command-line argument parser, validates the specified
+    USB port, and starts the process to query the status of the Sierra Wireless
+    module.
+
+    Args:
+        None
+
+    Raises:
+        ValueError: If the specified USB port does not exist.
+        Exception: If any other error occurs during the execution of the tool.
+    """
     sys.path.append(os.path.dirname(os.path.abspath(__file__)))
 
     parser = argparse.ArgumentParser(
         description="CLI tool for Sierra Wireless EM9xxx/EM7xxx modules to query status",
         formatter_class=argparse.RawTextHelpFormatter
     )
-    
+
     required = parser.add_argument_group('required arguments')
     required.add_argument("-p", "--port", help="USB port to use (e.g., 'COM1' for Windows or '/dev/ttyUSB2' for Linux)", required=True)
-    
+
     optional = parser.add_argument_group('optional arguments')
     optional.add_argument("--version", help="Show version", action="version", version=f"%(prog)s {__version__}")
     optional.add_argument("-m", "--model", help="Model of the device to add to filename (e.g., EM9191 or EM7455)", default="")
     optional.add_argument("-v", "--verbose", help="Enable verbose output", action="store_true")
     optional.add_argument("-s", "--search", help="Search for network using AT!COPS=?", action="store_true")
     optional.add_argument("-b", "--baudrate", help=f"Baudrate to use for serial communication (default: {DEFAULT_BAUDRATE})", default=DEFAULT_BAUDRATE, type=int)
-    
+
     args = parser.parse_args()
 
     setup_logging(args.verbose)