// Switch a repository to the empty branch, which will be created
// if it does not exist.
func switchToEmptyBranch(r *git.Repo) error {
contents := bytes.NewBufferString("This branch intentionally left blank\n")
readme := filepath.Join(r.WorkDir, "README.empty-branch")
if ref, err := r.Ref("empty-branch"); err == nil {
return ref.Checkout()
}
cmd, _, _ := r.Git("checkout", "--orphan", "empty-branch")
if cmd.Run() != nil {
return fmt.Errorf("Could not create empty-branch")
}
cmd, _, _ = r.Git("rm", "-r", "--cached", ".")
if cmd.Run() != nil {
return fmt.Errorf("Could not remove index from empty-branch")
}
cmd, _, _ = r.Git("clean", "-f", "-x", "-d")
if cmd.Run() != nil {
return fmt.Errorf("Could not clean working tree for empty-branch")
}
if ioutil.WriteFile(readme, contents.Bytes(), os.FileMode(0644)) != nil {
return fmt.Errorf("Could not create README.empty-branch")
}
cmd, _, _ = r.Git("add", "README.empty-branch")
if cmd.Run() != nil {
return fmt.Errorf("Could not add README.empty-branch to empty-branch")
}
cmd, _, _ = r.Git("commit", "-m", "Created empty branch.")
if cmd.Run() != nil {
return fmt.Errorf("Could not create initial commit to empty-branch")
}
return nil
}
func updateRepo(repo *git.Repo, branch string) {
Info.Print("Updating GIT repo")
repo.Checkout(branch)
repo.Fetch([]string{"origin"})
res, err := repo.Ref("remotes/origin/" + branch)
if err != nil {
Error.Fatal("Failed to get ref to origin/master: ", err)
}
currentRes, err := repo.CurrentRef()
if err != nil {
Error.Fatal("Failed to get ref to master: ", err)
}
err = currentRes.MergeWith(res)
if err != nil {
Error.Fatal("Failed to merge to master: ", err)
}
}