Class: RubyGems

Inherits:
Object
  • Object
show all
Includes:
Muzang::Plugins::Helpers
Defined in:
lib/muzang-plugins/muzang-rubygems.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Muzang::Plugins::Helpers

#create_database, #match, #on_channel, #on_join

Constructor Details

#initialize(bot) ⇒ RubyGems

Returns a new instance of RubyGems.



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# File 'lib/muzang-plugins/muzang-rubygems.rb', line 10

def initialize(bot)
  @bot = bot
  @store = PStore.new("#{ENV["HOME"]}/.muzang/muzang.rubygems")
  @store.transaction do
    @store[:gems] ||= {}
  end
end

Instance Attribute Details

#last_gem ⇒ Object

Returns the value of attribute last_gem.



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# File 'lib/muzang-plugins/muzang-rubygems.rb', line 8

def last_gem
  @last_gem
end

#store ⇒ Object

Returns the value of attribute store.



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# File 'lib/muzang-plugins/muzang-rubygems.rb', line 8

def store
  @store
end

Instance Method Details

#call(connection, message) ⇒ Object 



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# File 'lib/muzang-plugins/muzang-rubygems.rb', line 18

def call(connection, message)
  match(message, /^watch! (.*?)$/) do |match|
    @current_gem = match[1]

    @store.transaction do
      unless @store[:gems][@current_gem]
        @store[:gems][match[1]] = {:name => @current_gem}
        @new_gem = true
      end
    end

    if @new_gem
      http = EventMachine::HttpRequest.new("http://rubygems.org/api/v1/gems/#{@current_gem}.json").get
      http.callback {
        begin
          gem = JSON.parse(http.response)
          @store.transaction do
            @store[:gems][@current_gem][:version] = gem["version"]
          end
          connection.msg(message.channel, "I added gem #{@current_gem} to watchlist")
          connection.msg(message.channel, "Current version: #{@current_gem} (#{gem["version"]})")
          @new_gem = false
        rescue Exception
          connection.msg(message.channel, "Gem name is incorrect")
          @store.transaction{@store[:gems].delete(@current_gem)}
        end
      }
    else
      connection.msg(message.channel, "Gem #{@current_gem} is already observed")
    end
  end

  on_join(connection, message) do
    EventMachine.add_periodic_timer(period) do
      gems = @store.transaction{@store[:gems].values}
      EM::Iterator.new(gems, 1).each do |gem, iter|
        http = EventMachine::HttpRequest.new("http://rubygems.org/api/v1/gems/#{gem[:name]}.json").get
        http.callback {
          iter.next
          begin
            current_gem = JSON.parse(http.response)
            if Gem::Version.new(gem[:version]) < Gem::Version.new(current_gem["version"])
              @store.transaction do
                @store[:gems][gem[:name]][:version] = current_gem["version"]
              end
              connection.msg(message.channel, "New version #{gem[:name]} (#{current_gem["version"]})")
            end
          rescue
          end
        }
      end
    end
  end
end

#period ⇒ Object 



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# File 'lib/muzang-plugins/muzang-rubygems.rb', line 73

def period
  30
end