A cornerstone of good Drupal development is deploying your site’s code from a version control system like Git or SVN. A further best practice is to put all your code in a directory in the repository, instead of at the top level of the repository. Doing this allows you to put other things into the repository that are not intended to be served publicly. For example, Acquia’s Cloud Hooks are scripts you put into the hooks directory that run when you deploy code, databases, or files, but should never be served as site content.
