我是SBT插件的作者：https://github.com/atais/sbt-eclipselink-static-weave
其目的是使用提供的StaticWeaveProcessor增强编译的类。
为了实现这一步骤，我用替代了compile步骤
override def projectSettings: Seq[Def.Setting[_]] = Seq(
...
// https://www.scala-sbt.org/1.0/docs/Howto-Dynamic-Task.html#build.sbt+v2
compile in Compile := Def.taskDyn {
val c = (compile in Compile).value
Def.task {
(copyResources in Compile).value // we need to copy META-INF folder first, https://github.com/sbt/sbt/issues/3934
weaveTask.value
c
}
}.value
)
问题
使用此插件的项目可以正确编译，但它们可能会生成一个空的jar，在package或publish期间编译的源不可用。
您可能想查看我的pull请求，我已经准备了一个带有测试场景的测试项目。https://github.com/atais/sbt-eclipselink-static-weave/pull/2
详细信息
我已经尝试打印所有的设置和映射，但它们看起来很好。
然而，我发现Package.Configuration步骤使用cacheStoreFactory: CacheStoreFactory，我认为这是我的问题。
在函数makeJar(sources.toSeq, jar.file, manifest, log)中，有一个log.debug(sourcesDebugString(sources))，它在第一次运行时给出空结果：
[info] Finished EclipseLink static weaving in 610 ms.
[info] Packaging /home/atais/Documents/sbt-eclipselink-static-weave/sbt-test/target/scala-2.12/test_2.12-0.1.0-SNAPSHOT.jar ...
[debug] Input file mappings:
[debug]
但正确地列出了第二个：上的文件
[info] Finished EclipseLink static weaving in 559 ms.
[info] Packaging /home/atais/Documents/sbt-eclipselink-static-weave/sbt-test/target/scala-2.12/test_2.12-0.1.0-SNAPSHOT.jar ...
[debug] Input file mappings:
[debug] META-INF/persistence.xml
[debug] /home/atais/Documents/sbt-eclipselink-static-weave/sbt-test/target/scala-2.12/classes-weaved/META-INF/persistence.xml
[debug] META-INF
[debug] /home/atais/Documents/sbt-eclipselink-static-weave/sbt-test/target/scala-2.12/classes-weaved/META-INF
[debug] com
[debug] /home/atais/Documents/sbt-eclipselink-static-weave/sbt-test/target/scala-2.12/classes-weaved/com
[debug] META-INF/orm-rtb.xml
[debug] /home/atais/Documents/sbt-eclipselink-static-weave/sbt-test/target/scala-2.12/classes-weaved/META-INF/orm-rtb.xml
[debug] com/github/atais/entity
[debug] /home/atais/Documents/sbt-eclipselink-static-weave/sbt-test/target/scala-2.12/classes-weaved/com/github/atais/entity
[debug] com/github
[debug] /home/atais/Documents/sbt-eclipselink-static-weave/sbt-test/target/scala-2.12/classes-weaved/com/github
[debug] com/github/atais
[debug] /home/atais/Documents/sbt-eclipselink-static-weave/sbt-test/target/scala-2.12/classes-weaved/com/github/atais
[debug] com/github/atais/entity/EntityB.class
[debug] /home/atais/Documents/sbt-eclipselink-static-weave/sbt-test/target/scala-2.12/classes-weaved/com/github/atais/entity/EntityB.class
[debug] com/github/atais/entity/EntityA.class
[debug] /home/atais/Documents/sbt-eclipselink-static-weave/sbt-test/target/scala-2.12/classes-weaved/com/github/atais/entity/EntityA.class
SBT在两次运行之间不会重新启动。这只是我第二次叫包裹了。
我如何才能在第一次运行时生产出合适的罐子？
好吧，原来我应该使用
productDirectories in Compile := Seq(weavedClassesDest.value),
而不是
products in Compile := Seq(weavedClassesDest.value),
现在它似乎在上工作