plugins system: standalone

plugins_standalone.rb

module Base
  class Server
    def blabla(argument)
      @config ||= "default"

      if @config == "default"
        p "Server says: #{argument}"
      end

      puts "config: #{@config}"
    end
  end
end

module Base
  module Plugins
    module Something
      def blabla(argument)
        @config ||= "Something"
        
        if @config == "Something"
          p "Server (Somethinged) says: #{argument}"
        end

        super
      end
    end
  end
end

g = Base::Server.new

puts g.instance_eval("class << self; self; end").ancestors.inspect
puts
g.blabla("hello world")
puts
puts "---"
puts

g.extend(Base::Plugins::Something)

puts g.instance_eval("class << self; self; end").ancestors.inspect
puts
g.blabla("hello world from Something")
puts
puts "---"
puts

module Base
  module Plugins
    module SomethingElse
      def blabla(*arguments)
        @config = "SomethingElse"
        puts arguments.join " "
        super arguments.join " "
      end
    end
  end
end

g.extend(Base::Plugins::SomethingElse)

puts g.instance_eval("class << self; self; end").ancestors.inspect
puts
g.blabla("Hello", "World", "From", "Something", "Else")
puts

# =>
# [Base::Server, Object, Kernel]

# "Server says: hello world"
# config: default

# ---

# [Base::Plugins::Something, Base::Server, Object, Kernel]

# "Server says: hello world from Something"
# config: default

# ---

# [Base::Plugins::SomethingElse, Base::Plugins::Something, Base::Server, Object, Kernel]

# Hello World From Something Else
# config: SomethingElse