Replace yargonaut by sywac

[gil0mendes]

We are currently using yargonaut to apply style modifications to yarg, but yarg as architectural limitations that limit yargonaut.

Due to those limitations and some problems that we are having with the latest version of yarg and for the bad use of semantic version, that are constantly introducing breaking changes even in minor releases, we'll replace it by another package. The substitute will be Sywac, Sywac is a modern and powerful framework to build powerful CLI apps.

@nexdrew, the creator of yargonaut and Sywac, gave us an awesome response with a complex example of nested commands, one of our most common use cases. He also offered help on the rewrite of the CLI, and that would be very welcome, thanks for that 🙂

[nexdrew]

@gil0mendes Hi 👋

To help get this started, I created a new version of the bin files in my own fork/branch, which you can view here: https://github.com/nexdrew/stellar/tree/sywac/bin

You are free to use this work as you see fit. I think this will allow you to easily compare both versions (stellar using yargs and stellarnew using sywac) and run them side-by-side if necessary. As far as I can tell, the behavior of the new sywac version should be equivalent to the old yargs version, with the following exceptions:

• The completion command was removed (sywac does not currently support bash completion)
• The ability to recommend commands was removed (sywac does not currently support this)
• The help content is set to a fixed width for each command (sywac does not currently support disabling right-alignment of hints, though we can remove/customize hints if you'd like)
• The Stellar welcome message is only printed as part of the help content (we can change this if you'd like)
• The help content now has a lot more color/styling

Note that there was minimal refactoring of commands (almost all execution logic was untouched), but sywac understands asynchronous commands (a run method can return a Promise), so you might be able to do things with sywac that you can't do with yargs with a little refactoring (like easily time the execution of commands or do some cleanup in a centralized way).

Let me know what you think. If you'd like, I can pretty easily update my branch to be suitable for a PR.

[gil0mendes]

Hi 👋 @nexdrew,

Thanks again for the time spend, you are amazing, man. 👌 On the next weekend, I'll look into the code and run it and yes, would be really nice receiving a PR with those changes.

Thanks again 🙂