class Sprockets::URITar

Returns String

file:///This/is/an/absolute/path

If a uri is outside the root, it will start with a slash:

file://this/is/a/relative/path

start with a slash for example:
If a uri is inside of the environment's root it will not

Internal: Convert a "compressed" uri to an absolute path

def expand
  if path.start_with?("/".freeze)
    # Stored path was absolute, don't add root
    scheme + path
  else
    # Stored path was relative, add root
    scheme + File.join(root, path)
  end
end