Excluding unmanaged dependencies from universal:packageBin in sbt-native-packager?

playframework-2.0, sbt, sbt-native-packager

Solution

This works (thanks @jacek-laskowski for the improvements to my answer):

mappings in Universal :=  (mappings in Universal).value.filter { case(jar, _) => jar.getParentFile != unmanagedBase.value }

But, it still feels like a kludge, I would much prefer it if `sbt` (and the `sbt-native-packager`) would properly support the `Provided` scope as this scenario is exactly what it is meant for.

Problem

I have an external lib directory with jars. I need these included in my classpath in order to compile and test my project but I do not want to include them in the distributed zip file that is generated via `universal:packageBin` (in the sbt-native-packager) (or `dist` if you're using the `playframework`. I attempted to do this by using the `provided` scope as follows: ``` unmanagedBase in Provided := new java.io.File("/external/lib") ``` But this doesn't seem to work as advertised - the jars don't seem to get included in the `Compile` scope. I am using sbt 0.13.1.

Original source