module Sprockets::Server

def path_fingerprint(path)


# => "0aa2105d29558f3eb790d411d7d8fb66"
"foo-0aa2105d29558f3eb790d411d7d8fb66.js"

Gets ETag fingerprint. 
def path_fingerprint(path)
  path[/-([0-9a-zA-Z]{7,128})\.[^.]+\z/, 1]
end