将依赖的jar包inlining到另外一个jar包的ant插件

最新推荐文章于 2023-12-26 15:46:34 发布

wiflish_xie

最新推荐文章于 2023-12-26 15:46:34 发布

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文章标签： java jarjar ant

本文链接：https://blog.youkuaiyun.com/wiflish_xie/article/details/84495581

本文介绍JarJar工具如何帮助重新打包Java库并将其嵌入到自己的发行版中，以避免依赖冲突。通过具体示例展示了如何在Spring项目中使用JarJar将ASM和CGLIB库重新打包。

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https://code.google.com/p/jarjar/
 
Jar Jar Links is a utility that makes it easy to repackage Java libraries and embed them into your own distribution. This is useful for two reasons:
You can easily ship a single jar file with no external dependencies.
You can avoid problems where your library depends on a specific version of a library, which may conflict with the dependencies of another library.
spring中https://github.com/spring-projects/spring-framework/blob/3.2.x/build.gradle构建spring-core包，将asm和cglib包inling到spring-core包中。

  task 
  asmRepackJar
  (
  type: 
  Jar
  ) 
  { 
  repackJar 
  -> 
 
  repackJar
  .
  baseName 
  = 
  "spring-asm-repack" 
 
  repackJar
  .
  version 
  = 
  asmVersion 
 
  doLast
  () 
  { 
 
  project
  .
  ant 
  { 
 
  taskdef 
  name: 
  "jarjar"
  , 
  classname: 
  "com.tonicsystems.jarjar.JarJarTask"
  , 
 
  classpath: 
  configurations
  .
  jarjar
  .
  asPath 
 
  jarjar
  (
  destfile: 
  repackJar
  .
  archivePath
  ) 
  { 
 
  configurations
  .
  asm
  .
  each 
  { 
  originalJar 
  -> 
 
  zipfileset
  (
  src: 
  originalJar
  ) 
 
  } 
 
  rule
  (
  pattern: 
  "org.objectweb.asm.**"
  , 
  result: 
  "org.springframework.asm.@1"
  ) 
 
  } 
 
  } 
 
  } 
 
  } 
 
  task 
  cglibRepackJar
  (
  type: 
  Jar
  ) 
  { 
  repackJar 
  -> 
 
  repackJar
  .
  baseName 
  = 
  "spring-cglib-repack" 
 
  repackJar
  .
  version 
  = 
  cglibVersion 
 
  doLast
  () 
  { 
 
  project
  .
  ant 
  { 
 
  taskdef 
  name: 
  "jarjar"
  , 
  classname: 
  "com.tonicsystems.jarjar.JarJarTask"
  , 
 
  classpath: 
  configurations
  .
  jarjar
  .
  asPath 
 
  jarjar
  (
  destfile: 
  repackJar
  .
  archivePath
  ) 
  { 
 
  configurations
  .
  cglib
  .
  each 
  { 
  originalJar 
  -> 
 
  zipfileset
  (
  src: 
  originalJar
  ) 
 
  } 
 
  // repackage net.sf.cglib => org.springframework.cglib 
 
  rule
  (
  pattern: 
  "net.sf.cglib.**"
  , 
  result: 
  "org.springframework.cglib.@1"
  ) 
 
  // as mentioned above, transform cglib"s internal asm dependencies from 
 
  // org.objectweb.asm => org.springframework.asm. Doing this counts on the 
 
  // the fact that Spring and cglib depend on the same version of asm! 
 
  rule
  (
  pattern: 
  "org.objectweb.asm.**"
  , 
  result: 
  "org.springframework.asm.@1"
  ) 
 
  } 
 
  } 
 
  } 
 
  }