func (r *Repo) execThen() error {
	var errs error
	for _, command := range r.Then {
		err := command.Exec(r.Path)
		if err == nil {
			Logger().Printf("Command '%v' successful.\n", command.Command())
		}
		errs = mergeErrors(errs, err)
	}
	return errs
}
func (r *Repo) execThen() error {
	var errs error
	for _, command := range r.Then {
		err := command.Exec(r.Path)
		if err == nil {
			Logger().Printf("Command '%v' successful.\n", command.Command())
		}
		errs = mergeErrors(errs, err)
	}
	return errs
}
// execThen executes r.Then.
// It is trigged after successful git pull