javaSource并且scalaSource是输入unmanagedSourceDirectories.然后您可以设置unmanagedSourceDirectories为scalaSource:
unmanagedSourceDirectories in Compile <<=
scalaSource in Compile apply ( (s: File) => s :: Nil)
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或者更短一些:
unmanagedSourceDirectories in Compile <<= (scalaSource in Compile)( _ :: Nil)
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有关详细信息,请参阅类路径,源和资源.此外,inspect命令对于确定如何从其他设置构建设置非常有用.