How to copy resources with scala + play + sbt - scala

Question

I am using sbt [0.13] to compile a play [2.2] project using scala [2.10.3]. I have .sql files and scala files used for database migrations. The directory structure looks like:
app
|-> db
|-> migration
|-> V1__init.scala
|-> V2__newTable.sql
When I run compile from the play console (REPL), the scala file (V1__init.scala) is compiled to a .class and copied to the classes folder. But the .sql file is not moved.
I tried adding unmanagedResourceDirectories in Compile <++= baseDirectory { dir => Seq(dir/"app/db/migration") ++ Seq(dir/"db/migration") } but it did not copy the files. The whole block looks like:
val main = play.Project(appName, appVersion, appDependencies).settings(
scalaVersion := "2.10.3",
scalacOptions ++= Seq("-feature"), // enable feature warnings
unmanagedResourceDirectories in Compile <++= baseDirectory { dir => Seq(dir/"app/db/migration") ++ Seq(dir/"db/migration") }
)
I also tried using copyResources, but couldn't get that to work. Described here: http://www.playframework.com/documentation/2.0/SBTSettings
So does anyone know how I can copy the sql files to the classes folder?
Thanks!
UPDATE
I got IO.copyDirectory(new java.io.File("app/db/migration"), new java.io.File("target/scala-2.10/classes/db/migration"), true) to copy the files, but the destination is hard-coded and will change when I update scala

Answer 1

val main = play.Project(appName, appVersion, appDependencies).settings(
scalaVersion := "2.10.3",
scalacOptions ++= Seq("-feature"), // enable feature warnings
unmanagedResourceDirectories in Compile <+= scalaSource in Compile,
excludeFilter in unmanagedResources in Compile := "*.scala" || "*.java"
)
You can check easily the contents in the class folder with:
sbt clean full-classpath && ls target/scala-2.10/classes/db/migration/