class Sprockets::DirectiveProcessor

def process_require_tree_directive(path = ".")

//= require_tree "./public"

Its glob equivalent is `path/**/*`.
`require_tree` requires all the nested files in a directory.

def process_require_tree_directive(path = ".")
  path = expand_relative_dirname(:require_tree, path)
  require_paths(*@environment.stat_sorted_tree_with_dependencies(path))
end