Rename tgz to tar.gz while using sbt-native-packager

Question

I use the sbt-native-packager to build a gzipped tar file which has the extension .tgz. I then add that artifact using

artifact in (Compile, (packageZipTarball in Universal)) := {
  val previous: Artifact = (artifact in (Compile, (packageZipTarball in Universal))).value
  previous.withClassifier(Some("assembly")).withExtension("tar.gz")
 },
 addArtifact(artifact in (Compile, (packageZipTarball in Universal)), (packageZipTarball in Universal))

With this config the .tgz file gets published as .tar.gz to Nexus or the local repo.

How can I rename the .tgz in the target directory to .tar.gz without affecting the artifact publishing

Answer 1

To make sure I got your question right:

$ sbt universal:packageZipTarball

produces a file with the extension .tgz. What you want is a file with the extension .tar.gz.

You can achieve this by overrding the universal:packageZipTarball and simply move the result. I haven't tested this code, but it should give you a rough idea

packageZipTarball in Universal := {
   val targzFile = universal:packageZipTarball
   val renamedFile = targzFile.getParent / targzFile.getName.replaceAll("\\.tgz$", ".tar.gz")
   IO.move(targzFile, renamedFile)
   renamedFile
}

Cheers, Muki