learning-go-by-examples VS cobra

All the code of our gRPC app in Go is available in: https://github.com/scraly/learning-go-by-examples/tree/main/go-gopher-grpc

You can find theses fonts in my GitHub repository.

$ git clone https://github.com/scraly/learning-go-by-examples.git $ cd learning-go-by-examples

We created our Git repository in the previous article, so now we just have to retrieve it locally:

For that, I logged in GitHub website, clicked on the repositories link, click on "New" green button and then I created a new repository called “learning-go-by-example”.

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: