Using git2go clone on CloudRun

Question

I'm trying to use https://github.com/libgit2/git2go for cloning repository from GCP Source repository

But, I'm getting failed to resolve path '/tmp/repo/.git/': No such file or directory"

By using gcloud source repo clone, it works.

func initRepo(url, path, auth string) (*git.Repository, error) {
    var repo *git.Repository
    var err error
    osPath := "/tmp/" + path

    repo, err = git.OpenRepository(osPath)
    if err != nil {
        repo, err = git.Clone(url, osPath, &git.CloneOptions{
            FetchOptions: &git.FetchOptions{
                Headers: []string{auth},
            },
        })
    }
    return repo, err
}

func main() {
    ctx := context.Background() 
    ts, err := google.DefaultTokenSource(ctx, sourcerepo.SourceFullControlScope)
    if err != nil {
        panic(err)
    }
    token, err := ts.Token()
    if err != nil {
        panic(err)
    }

    auth := "Authorization: " + token.Type() + " " + token.AccessToken

    gitRepo, err := initRepo("https://source.developers.google.com/p/project/r/repo", "repo", auth)
    if err != nil {
        panic(err)
    }

What can cause this error? Running on local machine it works, even in my docker container.

Answer 1

I'm betting my buck on the git2go library you're using not being capable of creating a directory at /tmp/repo/.git/. Make sure to mkdir the /tmp/repo first yourself maybe? Maybe /tmp doesn't exist?