Dynamic values for command arguments & auto suggestions

[docent-net]

I've been looking for a way to dynamically fetch values into command argument values in interactive mode (could also work for non - interactive via shell completion).

For instance having:

@command(name_or_function="aws")
class AWS:
    @command
    @argument("profile", positional=True)
    @argument("host", positional=True)
    def ssh(self, profile: str, host: str):

I'd like user working in interactive mode have auto - suggestion while entering host value. This auto suggestion could be an async call to some defined method which basically fetches required data.

In practice I'm looking for a way to fetch AWS instance names and autocomplete user input so he/she may choose where he wants to ssh.

I know how it's done in aws-shell via python-prompt-toolkit auto suggestion feature. However before I try to mimic that behavior I wanted to ask you if you already have some thoughts about it.

Thanks,
Maciek

[AhmedSoliman]

The only thing we support at the moment is to use choices but that has to be a list of values. We don't currently support dynamic fetching of choices. One reason is that for simplicity we generate a JSON file with all of the completion model to aid nubia_complete to perform bash completions too.

If you like, you want work on implementing this in Nubia, but we need to figure out how the story will be when it comes to bash completion in that particular case.