Move api/internal/git to api/git.

[Bolodya1997]

Is your feature request related to a problem? Please describe.

I am implementing some code to prefetch all used images referenced from kustomize.yaml before processing kubectl apply -k - it is needed to improve tests stability. To work with remote bases I am currently using https://github.com/kubernetes-sigs/kustomize/blob/master/api/internal/git/repospec.go for extracting git repo spec from URL and further processing it, and it is very helpful.
Unfortunately it is located in api/internal/git package, so it cannot be imported and can only be copy-pasted and so it probably will need to be manually updated in some future.

Describe the solution you'd like

Can it be moved from api/internal/git package to just api/git?

[k8s-ci-robot]

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[natasha41575]

In preparation for releasing v1 of the api module, we would like to reduce its public surface. This will help us maintain backwards compatibility and allow more flexibility in our implementation of kustomize. See #3942

Because we are trying to reduce the public surface of the api module, I'm very hesitant to consider moving things out of api/internal. The api/internal/git package was never intended to be used as a library and exposing it would place the burden on us to maintain it as such. As far as we are concerned, it is just an implementation detail for how kustomize fetches remote resources.

I am implementing some code to prefetch all used images referenced from kustomize.yaml

Are you trying to implement something similar to #3980, which proposes a kustomize localize command? It may make more sense for kustomize to have your use case a builtin feature, rather than exposing internal details as a library for others to build it.

[natasha41575]

Closing as I don't think we would like t support this request at the moment. Please feel free to respond if you have further questions or concerns!