SBT-Assembly：如何在测试：Assembly期间应用合并策略

Question

在我的sbt项目中，我愿意生成包含src/test/······文件，以便我可以在其他项目中重用它们。

sbt test:assembly

import AssemblyKeys._

...

assemblySettings

Project.inConfig(Test)(assemblySettings)

jarName in (Test, assembly) := s"${name.value}-test-${version.value}.jar"

...

mergeStrategy in (Test, assembly) <<= (mergeStrategy in (Test, assembly)) { (old) =>
 {
  case "ECLIPSEF.RSA" => MergeStrategy.first
  case x => old(x)
 }
}

[warn] Merging 'META-INF\DEPENDENCIES' with strategy 'discard'
java.lang.RuntimeException: deduplicate: different file contents found in the following:
...\.ivy2\cache\org.eclipse.jetty.orbit\javax.transaction\orbits\javax.transaction-1.1.1.v201105210645.jar:META-INF/ECLIPSEF.RSA
...\.ivy2\cache\org.eclipse.jetty.orbit\javax.servlet\orbits\javax.servlet-3.0.0.v201112011016.jar:META-INF/ECLIPSEF.RSA
...\.ivy2\cache\org.eclipse.jetty.orbit\javax.mail.glassfish\orbits\javax.mail.glassfish-1.4.1.v201005082020.jar:META-INF/ECLIPSEF.RSA
...\.ivy2\cache\org.eclipse.jetty.orbit\javax.activation\orbits\javax.activation-1.1.0.v201105071233.jar:META-INF/ECLIPSEF.RSA
        at sbtassembly.Plugin$Assembly$.sbtassembly$Plugin$Assembly$$applyStrategy$1(Plugin.scala:253)
        at sbtassembly.Plugin$Assembly$$anonfun$15.apply(Plugin.scala:270)
        at sbtassembly.Plugin$Assembly$$anonfun$15.apply(Plugin.scala:267)
        at scala.collection.TraversableLike$$anonfun$flatMap$1.apply(TraversableLike.scala:251)
        at scala.collection.TraversableLike$$anonfun$flatMap$1.apply(TraversableLike.scala:251)
        at scala.collection.Iterator$class.foreach(Iterator.scala:727)
        at scala.collection.AbstractIterator.foreach(Iterator.scala:1157)
        at scala.collection.IterableLike$class.foreach(IterableLike.scala:72)
        ...
[error] (MyProject/test:assembly) deduplicate: different file contents found in the following:
[error] ...\.ivy2\cache\org.eclipse.jetty.orbit\javax.transaction\orbits\javax.transaction-1.1.1.v201105210645.jar:META-INF/ECLIPSEF.RSA
...

Answer 1

默认情况下，RSA文件问题将在0.12.0中修复。

你写的合并策略很接近。它需要META-INF作为模式的一部分。

mergeStrategy in (Test, assembly) <<= (mergeStrategy in (Test, assembly)) { (old) =>
  {
    case case PathList("META-INF", "ECLIPSEF.RSA") => MergeStrategy.first
    case x => old(x)
  }
}