hcledit VS cobra

To automate the process of injecting CI/CD runtime information into our Terraform code, we'll introduce the tool hcledit. With hcledit and some other manipulation, we can insert data into the Terraform code using regex/grep to find the correct place to add it.

I would suggest a CI step that reads the .terraform-version file and then uses hcledit to update that block in the code.

If you want to actually transform the HCL, use hcledit: https://github.com/minamijoyo/hcledit

The hclwrite library is pretty low-level and not convenient to use for quick scripting, but hcledit is a higher-level wrapper around it which works nicely for relatively straightforward situations.

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: