######################################################################
#                           BUNDLER TASKS                            #
######################################################################
Capistrano::Configuration.instance(:must_exist).load do
  before 'gems:install',      'bundler:install'

  namespace :gems do
    desc "Install Bundled Gems"
    task :install do
      run "cd #{current_release} && bundle install --gemfile #{current_release}/Gemfile --path #{shared_path}/bundle --deployment --quiet --without development test"
    end

    desc "Update Bundled Gems"
    task :update do
      raise "I'm sorry Dave, but I can't let you do that. I have full control over production." if rails_env == 'production'

      run "cd #{current_release} && bundle update"
    end
  end

  namespace :bundler do
    desc "Install Bundler"
    task :install do
      bundler_install_command = "gem install bundler --version #{gem_packager_version} --no-ri --no-rdoc && gem cleanup bundler"

      if fetch(:capabilities).include? :rvm
        run_with_rvm "#{ruby_version}@global", bundler_install_command
      else
        run bundler_install_command
      end
    end
  end
end

######################################################################
#                           BUNDLER CHECKS                           #
######################################################################
Capistrano::Configuration.instance(:must_exist).load do
  namespace :capabilities do
    namespace :check do
      desc <<-DESC
        [internal] Checks to see if all necessary Bundler capabilities variables have been set up.
      DESC
      task :bundler do
        required_variables = [
          :gem_packager_version
        ]

        verify_variables(required_variables)
      end
    end
  end
end

######################################################################
#                          BUNDLER DEFAULTS                          #
######################################################################
Capistrano::Configuration.instance(:must_exist).load do
  namespace :capabilities do
    namespace :defaults do
      desc "[internal] Sets intelligent defaults for Bundler deployments."
      task :bundler do
        _cset :gem_packager_version,  `gem list bundler`.match(/\((.*)\)/)[1]
        set   :rake,                  'bundle exec rake'
      end
    end
  end
end