class Gem::Tasks::Push

def define
  namespace :push do
    @project.builds.each do |build,packages|
      path = packages[:gem]
      task build => path do
        if @host
          status "Pushing #{File.basename(path)} to #{@host} ..."
        else
          status "Pushing #{File.basename(path)} ..."
        end
        push(path)
      end
    end
  end
  gemspec_tasks :push
  # backwards compatibility for Hoe
  task :publish => :push
end

def initialize(options={})
  super()
  @host = options[:host]
  yield self if block_given?
  define
end

def push(path)
  arguments = ['gem', 'push', path]
  arguments.push('--host', @host) if @host
  return run(*arguments)
end