Checkout certain tag, branch or hash
(tag, branch, revision string)
| 88 | |
| 89 | // Checkout certain tag, branch or hash |
| 90 | func (gr *GoGitRepository) Checkout(tag, branch, revision string) error { |
| 91 | r, err := git.PlainOpen(gr.LocalPath) |
| 92 | if err != nil { |
| 93 | return err |
| 94 | } |
| 95 | |
| 96 | // Resolve to the correct hash |
| 97 | var hash *plumbing.Hash |
| 98 | if tag != "" { |
| 99 | hash, err = r.ResolveRevision(plumbing.Revision(fmt.Sprintf("refs/tags/%s", tag))) |
| 100 | if err != nil { |
| 101 | return errors.Errorf("Error resolving tag revision: %v", err) |
| 102 | } |
| 103 | } else if branch != "" { |
| 104 | remoteRef, err := r.Reference(plumbing.ReferenceName(fmt.Sprintf("refs/remotes/origin/%s", branch)), true) |
| 105 | if err != nil { |
| 106 | return errors.Errorf("Error resolving branch revision: %v", err) |
| 107 | } |
| 108 | |
| 109 | newRef := plumbing.NewHashReference(plumbing.ReferenceName(fmt.Sprintf("refs/heads/%s", branch)), remoteRef.Hash()) |
| 110 | err = r.Storer.SetReference(newRef) |
| 111 | if err != nil { |
| 112 | return err |
| 113 | } |
| 114 | |
| 115 | // Checkout the branch |
| 116 | w, err := r.Worktree() |
| 117 | if err != nil { |
| 118 | return err |
| 119 | } |
| 120 | |
| 121 | return w.Checkout(&git.CheckoutOptions{ |
| 122 | Branch: newRef.Name(), |
| 123 | Create: false, |
| 124 | }) |
| 125 | } else if revision != "" { |
| 126 | h := plumbing.NewHash(revision) |
| 127 | hash = &h |
| 128 | } else { |
| 129 | return errors.New("Tag, branch or hash has to be defined") |
| 130 | } |
| 131 | |
| 132 | // Checkout the hash |
| 133 | w, err := r.Worktree() |
| 134 | if err != nil { |
| 135 | return err |
| 136 | } |
| 137 | |
| 138 | return w.Checkout(&git.CheckoutOptions{ |
| 139 | Hash: *hash, |
| 140 | Force: true, |
| 141 | }) |
| 142 | } |