如何在 Golang 中使用 git2go 获取 github 中的最新标签？

Question

I am trying to get the latest github tag from my local repository in golang. For now I am getting all the tags, code is below:

repo, err := git.OpenRepository("/home/defiant/Temp/repo")
    checkErr(err)
    re, err := repo.Tags.List()
    checkErr(err)
    fmt.Println(re)

The result returned is of the format:

[0.1 1.3 1.4]

Here 1.3 is the latest tag. So can someone please help me out in getting only the latest tag?

Answer 1

The bit you are looking for is the signature object (it has a when field). On a commit, you might be interested in either the author or the committer . If you are using annotated tags themselves - they have the tagger field which is when the commit was tagged.

If you have only annotated tags (ie no lightweight) this should get you the timestamps for the tags:

repo, err := git.OpenRepository("/home/defiant/Temp/repo")
if err != nil {
    panic(err)
}
err = repo.Tags.Foreach(func(name string, id *git.Oid) error {
    tag, err := repo.LookupTag(id)
    if err != nil {
        return err
    }
    log.Info(tag.Tagger().When)
    return nil
})

Working with lightweight tags you will need to resolve the commit directly - you should be able to do this with LookupCommit and explicitly choose the committer or the author .