Alias for 'require' which tracks which modules get created and displays them in a tree.

pryrc-verbose-require.rb

  command "req-verbose", "Requires gem(s). No need for quotes! (If the gem isn't installed, it will ask if you want to install it.)" do |*gems|

    def tree_to_array(hash, indent=0)
      result = []
      dent = "  " * indent
      hash.each do |key,val|
        result << dent+key
        result += tree_to_array(val, indent+1) if val.any?
      end
      result
    end

    def print_module_tree mods
      mods = mods.select  { |mod| not mod < Exception }
      mods = mods.map     { |mod| mod.to_s.split("::") }

      mod_tree = {}
      mods.sort.each { |path| mod_tree.mkdir_p(path) }

      results = tree_to_array(mod_tree)
      table = Term::Table.new(results, :cols=>3, :vertically => true)
      puts table
    end

    gems = gems.join(' ').gsub(',', '').split(/\s+/)
    gems.each do |gem|
      begin

        before_modules = ObjectSpace.each_object(Module).to_a

        if require gem
          output.puts "#{text.bright_yellow(gem)} loaded"
          loaded_modules = ObjectSpace.each_object(Module).to_a - before_modules
          print_module_tree(loaded_modules)
        else
          output.puts "#{text.bright_white(gem)} already loaded"
        end

      # rescue LoadError => e

      #   if gem_installed? gem
      #     output.puts e.inspect
      #   else
      #     output.puts "#{gem.bright_red} not found"
      #     if prompt("Install the gem?") == "y"
      #       run "gem-install", gem
      #       run "req", gem
      #     end
      #   end

      end # rescue
    end # gems
  end

  alias_command "require", "req-verbose"
  alias_command "req", "req-verbose"