Buildr uberjar task using one-jar

gistfile1.rb

# XXX: Set the deps you want
deps = []
deps << "com.thoughtworks.xstream:xstream:jar:1.3.1"
deps << "org.quartz-scheduler:quartz:jar:1.8.5"

task :uberjar => :package do |t|
  
    assembly_dir = "target/assembly"
      
    FileUtils.mkdir_p( "#{assembly_dir}/lib" )
    FileUtils.mkdir_p( "#{assembly_dir}/main" )
   
    FileUtils.copy "target/#{project.name}-#{project.version}.jar", "#{assembly_dir}/main"
   
    artifacts = Buildr.artifacts(deps).map(&:to_s)
    artifacts.each do |artifact|
        FileUtils.copy artifact, "#{assembly_dir}/lib" 
    end
    
    # XXX: path to one-jar-boot-0.97.jar - http://one-jar.sourceforge.net/
    Unzip.new( assembly_dir => "/path/to/one-jar-boot-0.97.jar" ).extract
    FileUtils.rm_rf "#{assembly_dir}/src" 
    
    File.open( "#{assembly_dir}/boot-manifest.mf", 'a') do |f| 
        # XXX: Set Java main class
        f.write("One-Jar-Main-Class: com.example.Server\n")
    end
    
    `cd target/assembly; jar -cvfm ../#{project.name}-uberjar-#{project.version}.jar boot-manifest.mf .`
  end