Consider making use of CLI library such as urfave/cli

[jurisevo]

In current implementation there is custom abstractions in place to implement sub-commands. From one side it is reasonable since it does not require additional 3rd party dependencies, on the other hand it is a case of NIH perhaps.

At some point it may make sense to consider some lite-weight CLI "framework" like urfave/cli.

But in any case adoption should be carefully weighed.

[DaniruKun]

I'd also take a look at https://github.com/spf13/cobra , it has very solid docs and adoption (e.g. it's used by most Go-based CLI tools like kubectl), and has an optional command/subcommand generator, which greatly speeds up work.

[jurisevo]

@DaniruKun Thank you for suggestions. Out of the context of this specific project I evaluated cobra. I agree to all points you highlight, the main reason for my subjective opinion against adopting it - it's relatively heavy-weight dependency. I prefer lightweight.