ishell VS readline

I want to build a command line tool with context-sensitive completion. This is important because it allows interactive exploration of the options -- both of the application and of the current data model -- available to the user.

So far this is what I've found.

https://github.com/desertbit/grumble

https://github.com/spf13/cobra

https://github.com/urfave/cli

https://github.com/abiosoft/ishell

I would like to know people's experiences and recommendations in building such an app in go.

Maybe something like: https://github.com/abiosoft/ishell

Your question is a little unclear. For any serious command prompt, it becomes almost required to build one from scratch as libraries tend to have too many constraints that prevent advanced use cases.

That's nice, were you aware of readline?

Do you want to build an interactive shell or a cli tool? For a custom shell I have used https://github.com/chzyer/readline before, but I did not work on it a lot.

I also wanted custom completions based on context and this readline implementation was decent for that.

On first glance, it seems like the Mac layout would be less convenient with Linux due to the alt/option key being further from the spacebar and more awkward to hit with your thumb. This makes a lot of commonly used keybindings (such as the standard readline keybindings, https://github.com/chzyer/readline/blob/master/doc/shortcut.md, commonly used in bash and other shells amongst other applications) harder to hit. Linux GUI applications use alt/option more frequently than super/command as well.

The authors keep a crib sheet here: https://github.com/chzyer/readline/blob/master/doc/shortcut.md

but that's the readline shortcuts which are the same no matter which Unix terminal you are using, on macOS, Linux, cygwin, git bash, WSL...

https://github.com/chzyer/readline/blob/master/doc/shortcut....