在sbteclipse插件中使用classpathTransformerFactories排除Scala库?

我要做的是在Build.scala中实现以下内容

  // sbteclipse rewrite rules
  object ClasspathentryRewriteRule extends RewriteRule {
    override def transform(parent: Node): Seq[Node] = {
      parent match {
        case c @ <classpathentry/> if (c \ "@path").toString().endsWith("SCALA_CONTAINER") =>
          val home = System.getProperty("user.home")
          val base = s"""$home\\.ivy2\\cache\\org.scala-lang\\scala-library"""
          val srcPath = s"""${base}\\srcs\\scala-library-${D.scalaVersion}-sources.jar"""
          val path = s"""${base}\\jars\\scala-library-${D.scalaVersion}.jar"""
          <classpathentry sourcepath={ srcPath } kind="lib" path={ path }/>
        case other => other
      }
    }
  }

  // sbteclipse transformer
  object ClasspathentryTransformer extends EclipseTransformerFactory[RewriteRule] {
    override def createTransformer(ref: ProjectRef, state: State): Validation[RewriteRule] = {
      ClasspathentryRewriteRule.success
    }
  }

在设置中,以下代码完成了作业:

      ....
      EclipseKeys.classpathTransformerFactories := Seq(ClasspathentryTransformer)
      ....