Drain the top level internal.

api/internal/git/cloner.go

@@ -1,121 +0,0 @@
-// Copyright 2019 The Kubernetes Authors.
-// SPDX-License-Identifier: Apache-2.0
-
-package git
-
-import (
-	"bytes"
-	"log"
-	"os/exec"
-
-	"github.com/pkg/errors"
-	"sigs.k8s.io/kustomize/v3/api/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 {
-	gitProgram, err := exec.LookPath("git")
-	if err != nil {
-		return errors.Wrap(err, "no 'git' program on path")
-	}
-	repoSpec.Dir, err = filesys.NewTmpConfirmedDir()
-	if err != nil {
-		return err
-	}
-	cmd := exec.Command(
-		gitProgram,
-		"init",
-		repoSpec.Dir.String())
-	var out bytes.Buffer
-	cmd.Stdout = &out
-	cmd.Stderr = &out
-	err = cmd.Run()
-	if err != nil {
-		log.Printf("Error initializing empty git repo: %s", out.String())
-		return errors.Wrapf(
-			err,
-			"trouble initializing empty git repo in %s",
-			repoSpec.Dir.String())
-	}
-
-	cmd = exec.Command(
-		gitProgram,
-		"remote",
-		"add",
-		"origin",
-		repoSpec.CloneSpec())
-	cmd.Stdout = &out
-	cmd.Stderr = &out
-	cmd.Dir = repoSpec.Dir.String()
-	err = cmd.Run()
-	if err != nil {
-		log.Printf("Error setting git remote: %s", out.String())
-		return errors.Wrapf(
-			err,
-			"trouble adding remote %s",
-			repoSpec.CloneSpec())
-	}
-	if repoSpec.Ref == "" {
-		repoSpec.Ref = "master"
-	}
-	cmd = exec.Command(
-		gitProgram,
-		"fetch",
-		"--depth=1",
-		"origin",
-		repoSpec.Ref)
-	cmd.Stdout = &out
-	cmd.Stderr = &out
-	cmd.Dir = repoSpec.Dir.String()
-	err = cmd.Run()
-	if err != nil {
-		log.Printf("Error performing git fetch: %s", out.String())
-		return errors.Wrapf(err, "trouble fetching %s", repoSpec.Ref)
-	}
-
-	cmd = exec.Command(
-		gitProgram,
-		"reset",
-		"--hard",
-		"FETCH_HEAD")
-	cmd.Stdout = &out
-	cmd.Stderr = &out
-	cmd.Dir = repoSpec.Dir.String()
-	err = cmd.Run()
-	if err != nil {
-		log.Printf("Error performing git reset: %s", out.String())
-		return errors.Wrapf(
-			err, "trouble hard resetting empty repository to %s", repoSpec.Ref)
-	}
-
-	cmd = exec.Command(
-		gitProgram,
-		"submodule",
-		"update",
-		"--init",
-		"--recursive")
-	cmd.Stdout = &out
-	cmd.Dir = repoSpec.Dir.String()
-	err = cmd.Run()
-	if err != nil {
-		return errors.Wrapf(err, "trouble fetching submodules for %s", repoSpec.Ref)
-	}
-
-	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
-	}
-}