我有一个用buildr构建的java项目,它有一些外部依赖项:
repositories.remote << "http://www.ibiblio.org/maven2"
repositories.remote << "http://packages.example/"
define "myproject" do
compile.options.target = '1.5'
project.version = "1.0.0"
compile.with 'dependency:dependency-xy:jar:1.2.3'
compile.with 'dependency2:dependency2:jar:4.5.6'
package(:jar)
end
我希望这个构建一个包含所有这些依赖项的独立jar文件。
我该怎么做?
(有一个合乎逻辑的后续问题:How can I strip all the unused code from the included dependencies and only package the classes I actually use?)
答案 0 :(得分:8)
这就是我现在正在做的事情。这使用autojar来仅提取必要的依赖项:
def add_dependencies(pkg)
tempfile = pkg.to_s.sub(/.jar$/, "-without-dependencies.jar")
mv pkg.to_s, tempfile
dependencies = compile.dependencies.map { |d| "-c #{d}"}.join(" ")
sh "java -jar tools/autojar.jar -baev -o #{pkg} #{dependencies} #{tempfile}"
end
以后:
package(:jar)
package(:jar).enhance { |pkg| pkg.enhance { |pkg| add_dependencies(pkg) }}
(警告:我对buildr知之甚少,这可能是完全错误的方法。但它对我有用)
答案 1 :(得分:7)
我也在学习Buildr,目前我用这种方式用我的应用程序打包Scala运行时:
package(:jar).with(:manifest => _('src/MANIFEST.MF')).exclude('.scala-deps')
.merge('/var/local/scala/lib/scala-library.jar')
不知道这是否不如autojar(评论是受欢迎的),但似乎只是一个简单的例子。需要4.5分钟才能打包scala-library.jar。
答案 2 :(得分:0)
我将使用Cascading作为我的例子:
cascading_dev_jars = Dir[_("#{ENV["CASCADING_HOME"]}/build/cascading-{core,xml}-*.jar")]
#...
package(:jar).include cascading_dev_jars, :path => "lib"
答案 3 :(得分:0)
以下是我如何使用Buildr创建一个Uberjar,这个定制了Jar中的内容以及如何创建Manifest:
assembly_dir = 'target/assembly'
main_class = 'com.something.something.Blah'
artifacts = compile.dependencies
artifacts.each do |artifact|
Unzip.new( _(assembly_dir) => artifact ).extract
end
# remove dirs from assembly that should not be in uberjar
FileUtils.rm_rf( "#{_(assembly_dir)}/example/package" )
FileUtils.rm_rf( "#{_(assembly_dir)}/example/dir" )
# create manifest file
File.open( _("#{assembly_dir}/META-INF/MANIFEST.MF"), 'w') do |f|
f.write("Implementation-Title: Uberjar Example\n")
f.write("Implementation-Version: #{project_version}\n")
f.write("Main-Class: #{main_class}\n")
f.write("Created-By: Buildr\n")
end
present_dir = Dir.pwd
Dir.chdir _(assembly_dir)
puts "Creating #{_("target/#{project.name}-#{project.version}.jar")}"
`jar -cfm #{_("target/#{project.name}-#{project.version}.jar")} #{_(assembly_dir)}/META-INF/MANIFEST.MF .`
Dir.chdir present_dir
还有一个版本supports Spring,通过连接所有 spring.schemas