func()

in pkg/git/git.go [556:606]

• 43 lines of code
• 10 McCabe index (conditional complexity)

func (*GitProvider) Checkout(user, pass *string, directory, branchName string, remote bool) error {
	log.Info("trying to checkout to branch", logBranchNameKey, branchName)

	r, err := git.PlainOpen(directory)
	if err != nil {
		return fmt.Errorf(errPlainOpenTmpl, directory, err)
	}

	w, err := r.Worktree()
	if err != nil {
		return fmt.Errorf("failed to get git worktree: %w", err)
	}

	createBranchOrNot := true

	if remote {
		gfo := &git.FetchOptions{RefSpecs: []config.RefSpec{"refs/*:refs/*"}}
		if user != nil && pass != nil {
			gfo = &git.FetchOptions{
				RefSpecs: []config.RefSpec{"refs/*:refs/*"},
				Auth: &http.BasicAuth{
					Username: *user,
					Password: *pass,
				},
			}
		}

		err = r.Fetch(gfo)
		if err != nil {
			if err.Error() != "already up-to-date" {
				return fmt.Errorf("failed to fetch: %w", err)
			}
		}

		createBranchOrNot, err = checkBranchExistence(user, pass, branchName, *r)
		if err != nil {
			return err
		}
	}

	err = w.Checkout(&git.CheckoutOptions{
		Branch: plumbing.ReferenceName(fmt.Sprintf("refs/heads/%s", branchName)),
		Force:  true,
		Create: createBranchOrNot,
	})
	if err != nil {
		return fmt.Errorf("failed to checkout git branch: %w", err)
	}

	return nil
}