ishell VS cobra

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.

We can use the flag with --date or -date, Go already does the automatic check. We can make our entire boilerplate with this approach, but let's make it a little easier and use the Cobra CLI package.

In this tutorial, we'll walk through the process of creating a simple command-line tool similar to curl using Go and Cobra, a CLI library for Go.

I use https://github.com/spf13/cobra religiously for this kind of thing - it handles all the annoying corner cases of parsing flags, and also has an intuitive notion of subcommands (with basic usage/help text generated) for picking which task you want to run with positional arguments.

We recently chose cobra[1] to create a cli application. It comes with so many best practices already packaged like autocompletions, help texts etc. etc.

[1]: https://github.com/spf13/cobra

github.com/spf13/cobra

I looked at the docs: https://cobra.dev/ ... and there are only examples on how to add new flags.

For installing Cobra-CLI you can go to Cobraor run go install github.com/spf13/cobra-cli@latest in the terminal.

In my build phase, I compile the source to create a k3sup binary and I also run the binary to generate shell script completions. Give kudos to this functionality which comes from spf13/cobra Go library for CLIs.

NWA is a command-line tool built on cobra. Here's an overview of NWA's commands: