To know why this happens the command inspect tree packageSrc
is helpful, it will also tell you what to change to have your sources included.
When executed should show you something like this:
> inspect tree packageSrc
[info] compile:packageSrc = Task[java.io.File]
[info] +-compile:packageSrc::packageConfiguration = Task[sbt.Package$Configuration]
[info] | +-compile:packageSrc::mappings = Task[scala.collection.Seq[scala.Tuple2[java.io.File, java.lang.String]]]
[info] | | +-compile:unmanagedSources = Task[scala.collection.Seq[java.io.File]]
[info] | | +-compile:unmanagedResources = Task[scala.collection.Seq[java.io.File]]
[info] | | +-compile:unmanagedResourceDirectories = List(/tmp/q-23437043/src/main/resources)
[info] | | +-*:baseDirectory = /tmp/q-23437043
[info] | | +-compile:unmanagedSourceDirectories = List(/tmp/q-23437043/src/main/scala, /tmp/q-23437043/src/main/java)
// more stuff but not relevant for us
You can see from there that SBT is using mappings
key to know from where to take the files.
Knowing that we can take the generated files and add them to the mappings in packageSrc
in your build.sbt
:
import Path.flat
xjcSettings
def xjcSources(base: File) = base ** "*"
mappings in Compile in packageSrc ++= xjcSources((sourceManaged in (Compile, xjc)).value) pair flat
You can read more about Mappings and Paths to customize / control the result.