mirror of
https://github.com/kubernetes-sigs/kustomize.git
synced 2026-05-17 18:25:26 +00:00
98 lines
2.2 KiB
Go
98 lines
2.2 KiB
Go
// Copyright 2019 The Kubernetes Authors.
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// SPDX-License-Identifier: Apache-2.0
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package git
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import (
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"log"
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"os/exec"
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"github.com/pkg/errors"
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"sigs.k8s.io/kustomize/api/filesys"
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)
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// Cloner is a function that can clone a git repo.
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type Cloner func(repoSpec *RepoSpec) error
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// ClonerUsingGitExec uses a local git install, as opposed
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// to say, some remote API, to obtain a local clone of
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// a remote repo.
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func ClonerUsingGitExec(repoSpec *RepoSpec) error {
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gitProgram, err := exec.LookPath("git")
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if err != nil {
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return errors.Wrap(err, "no 'git' program on path")
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}
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repoSpec.Dir, err = filesys.NewTmpConfirmedDir()
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if err != nil {
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return err
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}
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if repoSpec.Ref == "" {
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repoSpec.Ref = "master"
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}
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cmd := exec.Command(
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gitProgram,
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"clone",
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"--depth=1",
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repoSpec.CloneSpec(),
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repoSpec.Dir.String())
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out, err := cmd.CombinedOutput()
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if err != nil {
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log.Printf("Error cloning git repo: %s", out)
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return errors.Wrapf(
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err,
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"trouble cloning git repo %v in %s",
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repoSpec.CloneSpec(), repoSpec.Dir.String())
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}
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cmd = exec.Command(
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gitProgram,
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"fetch",
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"--depth=1",
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"origin",
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repoSpec.Ref)
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cmd.Dir = repoSpec.Dir.String()
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out, err = cmd.CombinedOutput()
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if err != nil {
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log.Printf("Error fetching ref: %s", out)
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return errors.Wrapf(err, "trouble fetching %s", repoSpec.Ref)
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}
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cmd = exec.Command(
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gitProgram,
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"checkout",
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"FETCH_HEAD")
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cmd.Dir = repoSpec.Dir.String()
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out, err = cmd.CombinedOutput()
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if err != nil {
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log.Printf("Error checking out ref: %s", out)
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return errors.Wrapf(err, "trouble checking out %s", repoSpec.Ref)
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}
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cmd = exec.Command(
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gitProgram,
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"submodule",
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"update",
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"--init",
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"--recursive")
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cmd.Dir = repoSpec.Dir.String()
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out, err = cmd.CombinedOutput()
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if err != nil {
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log.Printf("Error fetching submodules: %s", out)
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return errors.Wrapf(err, "trouble fetching submodules for %s", repoSpec.CloneSpec())
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}
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return nil
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}
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// DoNothingCloner returns a cloner that only sets
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// cloneDir field in the repoSpec. It's assumed that
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// the cloneDir is associated with some fake filesystem
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// used in a test.
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func DoNothingCloner(dir filesys.ConfirmedDir) Cloner {
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return func(rs *RepoSpec) error {
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rs.Dir = dir
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return nil
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}
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}
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