kubernetes/vendor/sigs.k8s.io/kustomize/api/internal/git/cloner.go

type Cloner …

// ClonerUsingGitExec uses a local git install, as opposed
// to say, some remote API, to obtain a local clone of
// a remote repo.
func ClonerUsingGitExec(repoSpec *RepoSpec) error { … }

// DoNothingCloner returns a cloner that only sets
// cloneDir field in the repoSpec.  It's assumed that
// the cloneDir is associated with some fake filesystem
// used in a test.
func DoNothingCloner(dir filesys.ConfirmedDir) Cloner { … }