teambox/viper-module-generator

module Vipergen
    class DirUtils
        # Return a directory with the project libraries.
        def self.gem_libdir
          t = ["#{File.dirname(File.expand_path($0))}/../lib/#{Vipergen::NAME}",
               "#{Gem.dir}/gems/#{Vipergen::NAME}-#{Vipergen::VERSION}/lib/#{Vipergen::NAME}"]
          t.each {|i| return i if File.readable?(i) }
          raise "both paths are invalid: #{t}"
        end

        # Returns the directories inside a given one
        def self.directories_in(directory)
            expanded_dir = File.expand_path(directory)
            return Dir.glob(File.join(expanded_dir,'*')).select {|f| File.directory? f}
        end
    end
end