How to copy some files to the build target directory with SBT?

Question

How can I copy some source files (e.g. /src/main/html/*.html) to the build output directory (e.g. /target/scala-2.11/) with SBT so that the files e

Answer 1

You can define sbt task copying resources to target directory:

lazy val copyRes = TaskKey[Unit]("copyRes")

lazy val root:Project = Project(
   ...
)
.settings(
  ...
  copyRes <<= (baseDirectory, target) map {
    (base, trg) => new File(base, "src/html").listFiles().foreach(
      file => Files.copy(file.toPath, new File(trg, file.name).toPath)
    )
  }
)

and use this task in sbt:

sbt clean package copyRes