Implement a commandline interface for the AVM smart home lib

Implement a ready-to-use application to interface the existing AVM smart home lib

Acceptance criteria:

• The application should be able to make use of a configuration file or via direct arguments
  • Direct arguments overwrite config settings
• Make use of the existing AVM interface/test binaries
• Make use of the existsing config interface

Meta:

• Name the application binary avmctrl
• Support short/long argument name eg. -h and --help
• Support dedicated operations like systemctl list-units

List of arguments:

• avmctl -h|--help Show the available operations / arguments
• avmctl -c|--config Set the path to a config file
• avmctl -H|--host Set a host for the operations (overwrites config host)
• avmctl -u|--user Set a username for session (overwrites config username)
• avmctl -p|--password Set a password for the session (overwrites config password)
• avmctl check-config Try to start a test session and on success end it
• avmctl list List all usable actors and print some meta information about them
• avmctl present [ain] Check if the configured actor is present/connected
• avmctl state [ain] Retrieve the current state of the actor (EXIT 0 = on, EXIT_FAILURE 1 = off)
• avmctl status [ain] Print information about presence and state of the actor
• avmctl toggle [ain] Toggle the state of the actor
• avmctl off [ain] Turn the actor off
• avmctl on [ain] Turn the actor on

Other things to do:

• Document the usage in a man page