Add --local (-L) for --consistency-only and --predict-only options

[elikoga]

The --local flag allows running consistency checks and deployment predictions using the local host's state, without connecting to the remote host. This flag can only be used with the --consistency-only or --predict-only options.

[stevleibelt]

I am totally out of scope of what the options are doing. This warning written, I am just reading the command option check-and-predict-local and assuming that:

• check can be called independently
• predict can be called independently
• if local is mentioned, there must be a global

If all is true, is there an option to split them up into --check --predict --local?
This way you are free to combine them how you want like:

• --check --local
• --check --global
• --predict --local
• --predict --global
• --check --predict --local
• --check --predict --global

I don't know if --global is the default scope and you don't have to mention it explicit.
Of course this only hides the complexity for the user in the cli. As developer, you have to check if the inserted flag combination makes sense and is doable. This would also result in a bigger man-page. But at least your cli is still small and gives you freedom how to use it.

Kind regards.

[elikoga]

predict only and consistency check are mutually exclusive.
the counterpart for local in this context is remote, which is intended to be a flagless default, due to the fact that batou is a deployment tool