Creation Release resource and data source

[Moon1706]

Feature Description

I wanna develop Release resource and data source. For this, I should create Milestone and Release links.

Do you want to implement this?

• [X] I would like to implement this myself 👷

[Moon1706]

Hi @timofurrer ! I need advice from your side. I'll wanna develop Release resource, but I've hit with an interesting problem. In official API documentation a release contains Milestones, but official Golang API not. That's not a trouble, just a fact. But, but as you can see Milestone in GitLab API also contains field issue_stats and it's super strange value, because we can't get it from Milestone API and we'll must calculate it. Also, we can't just use a list of Milestone structure in Golang API and have to develop a new structure with this field. As a result, the more I think about in the more I'm sure that we should skip this field. So, what do you think about it?

[timofurrer]

@Moon1706 thanks for the detailed questions and the links, super helpful!

I suggest to do the following:

• Implement the Milestones field in the go-gitlab API.
  • as documented with all the fields from here
  • You don't need to calculate the issue_stats field - they just come here form the API - I don't see the need to involve the Milestones API at all.
• Implement the milestones attribute in the release resource as a list of strings of milestone titles
  • Thus, you only consume the .Miletones[].Title field from the go-gitlab Release struct for the milestones provider attribute

The resource in terms of the milestones attribute could like something like this:

resource "gitlab_project_release" "this" {
  milestones = ["v1.0", "first-iteration"]
}

WDYT?