Access git version info as a filter
{{ "Branch is " | gitBranch }}-> Branch is master{{ "Tag is " | gitTag }}-> Tag is foo{{ "Short hash is " | gitShort }}-> Short hash is 30f47b0{{ "Long hash is " | gitLong }}-> Long hash is 30f47b0f030c21bbf8129246f0f2e42e3e4f8576