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// Copyright 2019 The Kubernetes Authors.
// SPDX-License-Identifier: Apache-2.0
package git
import (
"sigs.k8s.io/kustomize/kyaml/filesys"
)
// Cloner is a function that can clone a git repo.
type Cloner func(repoSpec *RepoSpec) error
// 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 {
r, err := newCmdRunner(repoSpec.Timeout)
if err != nil {
return err
}
repoSpec.Dir = r.dir
if err = r.run("init"); err != nil {
return err
}
// git relative submodule need origin, see https://github.com/kubernetes-sigs/kustomize/issues/5131
if err = r.run("remote", "add", "origin", repoSpec.CloneSpec()); err != nil {
return err
}
ref := "HEAD"
if repoSpec.Ref != "" {
ref = repoSpec.Ref
}
// we use repoSpec.CloneSpec() instead of origin because on error,
// the prior prints the actual repo url for the user.
if err = r.run("fetch", "--depth=1", repoSpec.CloneSpec(), ref); err != nil {
return err
}
if err = r.run("checkout", "FETCH_HEAD"); err != nil {
return err
}
if repoSpec.Submodules {
return r.run("submodule", "update", "--init", "--recursive")
}
return nil
}
// 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 {
return func(rs *RepoSpec) error {
rs.Dir = dir
return nil
}
}
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