SBT Native Packager change output location of ZIP

Question

This is my build.sbt:

name := "DB-Services"

version := "0.1"

scalaVersion := "2.12.12"

lazy val root = (project in file(".")).enablePlugins(UniversalPlugin,JavaServerAppPackaging)

artifactName := { (_, _, _) => "DB-Services.zip"}
Universal / mappings ++= directory(target.value)

Currently sbt package generates DB-Services.zip inside of target/scala-2.12. However I need this ZIP to be generated inside target folder instead. But the problem is that the mapping I provided above does not work and the ZIP continues to be generated inside target/scala-2.12.

What changes should I do in my build.sbt so that the ZIP is generated in target folder? (I cannot generate the ZIP in any other location due to limitations with our CICD)

(PS: This answer does not work, so please do not mark this as duplicate)

Answer 1

Universal / target := (Compile / target).value

Works for me. How I found this:

1. There is a useful tool in SBT to dive into settings and tasks: inspect

2. I ran inspect root/Universal/packageBin (root/Universal/packageBin is how we build an artifact), it returned:

   ...
   [info] Dependencies:
   [info]  Universal / packageBin / validatePackage
   [info]  Universal / packageBin / mappings
   [info]  Universal / packageName
   [info]  Universal / target
   [info]  Universal / packageBin / universalArchiveOptions
   [info]  Universal / topLevelDirectory
   ...
   

3. Universal / target looked interesting, so I ran: inspect Universal / target , it returned:

   ...
   [info] Description:
   [info]  Main directory for files generated by the build.
   ...
   

We can find that Compile / target returns a path to the target directory in a same way (or just a read docs).