Is there any way in sbt (custom task or plugin) to pack packages in separate jars.
For example :- In this sample project, there should be 6 jar files generated for packages eg1, eg2, eg3, eg4, eg49, eg50
Given, there is no inter dependency of any package on each other. Simplified project for reference :- https://github.com/moglideveloper/MultipleSpecJars
Final Edit :-
I managed to create jar file with the regex name (where regex pointing to some package name) with below task :-
sbt createCompactJar
Now, I am stuck how to reuse this for a sequence of regexes.
Below is the simplified logic for createCompactJar :-
lazy val multipleSpecJars = (project in file("."))
.settings(libraryDependencies += "org.scalatest" %% "scalatest" % "3.2.2")
//A different configuration which would redefine the packageBin task within this new configuration
//so it does not change the original definition of packageBin
lazy val CompactJar = config("compactJar").extend(Compile)
inConfig(CompactJar)(Defaults.compileSettings)
val allRegexes = List("eg1", "eg2", "eg3", "eg4", "eg49", "eg50")
/*
Below logic only works for one regex (regexToInclude),
How to convert this logic for a sequence of regexes(allRegexes) ?
*/
val regexToInclude = "eg3"
lazy val createCompactJar = taskKey[Unit]("create compact jar based on regex")
/*
createCompactJar
1. Depends on packageBin sbt task.
2. call packageBin and then rename jar that is generated by
packageBin in same directory to <regex>.jar
*/
createCompactJar := {
println("now creating jar for regex : " + regexToInclude)
(packageBin in CompactJar).value
//Logic to rename generated jar file to <regex>.jar
val jarFileDir = (baseDirectory).value + "/target/scala-2.12"
val jarFilePath = jarFileDir + "/multiplespecjars_2.12-0.1.0-SNAPSHOT-compactJar.jar"
val sourceFile = new File(jarFilePath)
val destinationFile = new File(jarFileDir + "/" + regexToInclude + ".jar")
println(s"renaming $sourceFile to $destinationFile")
sourceFile.renameTo(destinationFile)
}
mappings in(CompactJar, packageBin) := {
val original = (mappings in(CompactJar, packageBin)).value
original.filter { case (file, toPath) => toPath.startsWith(regexToInclude) }
}
unmanagedSourceDirectories in CompactJar := (unmanagedSourceDirectories in Compile).value
