# File lib/fastcst/metadata.rb, line 21
21:     def MetaData.add_file(md_file, name, purpose)
22:         digest = Digest::MD5.hexdigest(File.read(name))
23:         
24:         MetaData.update_md(md_file) do |md|
25:             md["Contents"] ||= []
26:             md["Contents"] << { "Name" => name, "Digest" => digest, "Purpose" => purpose }
27:         end
28:         
29:     end