cobra VS promptui

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:

The navigation is dealt with by the promptui framework, so in this respect the extension does not touch/re-defines it. This said, let's move the conversation on GitHub, I am sure we can find a way to make it work :)

View on GitHub

The fmt.Scan family of functions exist because there are similar functions in C, but they really aren't suitable for any purpose. I would recommend beginners to just avoid them completely because the way they work is endlessly surprising. In this case, the problem you're running into is that Scanln expects a line, but you had a space instead, but honestly, don't try to debug it, just switch to https://github.com/manifoldco/promptui.

This tutorial will guide us through building an interactive CLI app with Go, Cobra and promptui. We will learn how to prompt the user for input data and persist this data to an SQLite database. Unlike the previous app we built, this experience will feel more like a two way conversation.

I got into cli applications lately and came across cobra. It was highly intuitive and very much easy to use so I couldn't get enough of it and wanted to create something to make it useful along with promptui.

It uses this library to create an interactive prompt. Just use the up and down arrows to select the host you want.