SBT 包在增强编译后生成空 JAR 类

Question

我是 SBT 插件的作者：https://github.com/atais/sbt-eclipselink-static-weave
它的目的是增强编译类使用提供的StaticWeaveProcessor。

为了完成这一步，我已经覆盖了 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，但它们可能在 package 或 [=17] 期间生成 空 jar =] IF 事先没有编译好的源代码。

您可能想查看我的拉取请求，我在其中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

详情

我已经尝试打印所有设置和映射，但它们看起来还不错。

但是，我发现 Package.Configuration 步骤正在使用 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)) 在第一个运行:

上给出空结果

[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]

但正确列出了第二个文件：

[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 在运行秒之间未重新启动。这是我第二次调用 package.

我怎样才能在第一个运行上生成合适的 jar？

Answer 1

好的，原来我应该用

productDirectories in Compile := Seq(weavedClassesDest.value),

而不是

products in Compile := Seq(weavedClassesDest.value),

现在似乎可以正常工作了

SBT 包在增强编译后生成空 JAR 类

SBT package produces empty JAR after enhancing compiled classes

scala

sbt

sbt-plugin

问题

详情