warbler: store a local webserver jar, instead of in ~/.m2/

build.sh

#!/bin/sh

ruby \
  -I$(dirname $(gem which warbler)) -r warbler/web_server \
  -I./ -r local_web_server \
  -S warble \
  --trace

local_web_server.rb

module Warbler
  class WebServer
    class LocalArtifact < Struct.new(:path, :group_id, :artifact_id, :version, :url)
      def path_fragment
        @path_fragment ||= "lib/jars/#{artifact_id}-#{version}.jar"
      end
      def cached_path
        @cached_path ||= File.join(Dir.pwd,path_fragment)
      end
      def local_path
        unless FileTest.file?(cached_path)
          puts "Downloading #{url} to #{cached_path}"
          FileUtils.mkdir_p File.dirname(cached_path)
          require 'open-uri'
          begin
            open(url) do |stream|
              File.open(cached_path, "wb") do |f|
                while buf = stream.read(4096)
                  f << buf
                end
              end
            end
          rescue => e
            e.message.concat " - #{url}"
            raise e
          end
        end
        cached_path
      end
    end
  end

  class LocalWinstoneServer < WinstoneServer
    attr_reader :artifact
    def initialize
      d = File.dirname(File.dirname(File.expand_path(__FILE__)))
      @artifact = LocalArtifact.new(d, "lib.jars",
                                    "winstone","0.9.10-jenkins-35",
                                    "http://maven.jenkins-ci.org/content/groups/artifacts/org/jenkins-ci/winstone/0.9.10-jenkins-35/winstone-0.9.10-jenkins-35.jar"
                                   )
    end
  end
  WEB_SERVERS.update({"local.winstone" => LocalWinstoneServer.new})
end

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