Class: VagrantPlugins::Lifecycle::MiddleWare

Inherits:
Object
  • Object
show all
Defined in:
lib/vagrant-lifecycle/middleware.rb

Instance Method Summary collapse

Constructor Details

#initialize(app, env) ⇒ MiddleWare

Returns a new instance of MiddleWare.



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# File 'lib/vagrant-lifecycle/middleware.rb', line 4

def initialize(app, env)
  @app = app

  klass = self.class.name.downcase.split('::').last
  @logger = Log4r::Logger.new("vagrant::lifecycle::#{klass}")
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/vagrant-lifecycle/middleware.rb', line 11

def call(env)
  event = env[:lifecycle_event] || env[:machine].config.lifecycle.default_event || nil

  if event.nil?
    @app.call(env)
  else
    chef_provisioners = env[:machine].config.vm.provisioners.select do |provisioner|
      # Vagrant 1.7 changes provisioner.name to provisioner.type
      if provisioner.respond_to? :type
        provisioner.type.to_sym == :chef_solo || provisioner.type.to_sym == :chef_client || provisioner.type.to_sym == :chef_zero
      else
        provisioner.name.to_sym == :chef_solo || provisioner.name.to_sym == :chef_client || provisioner.name.to_sym == :chef_zero
      end
    end

    # @type [Hash]
    lifecycle_events = env[:machine].config.lifecycle.events

    if lifecycle_events.key?(event) || lifecycle_events.key?(event.to_sym) || lifecycle_events.key?(event.to_s)
      # @type [lambda]
      event_lambda = lifecycle_events[event] || lifecycle_events[event.to_sym] || lifecycle_events[event.to_s]

      chef_provisioners.each do |chef|
        begin
          new_run_list = event_lambda.call(chef.config.run_list || [], env)
          @logger.debug "Setting run_list = #{new_run_list.inspect}"

          if new_run_list.kind_of?(Array)
            chef.config.run_list = new_run_list
          else
            env[:ui].error "Could not evaluate proper run list for the lifecycle event #{event}!"
            env[:interrupted] = true
          end
        rescue Exception => e
          env[:ui].error "Failed while evaluating run list for the event #{event} with error: #{e}"
          env[:interrupted] = true
        end
      end
    else
      env[:ui].error "Lifecycle event #{event} not configured!"
      env[:interrupted] = true
    end

    @app.call(env)
  end
end