Parse Java system properties to extract jars from the class path

SystemPropertiesParsing.scala

//> using scala "2.13"
//> using platform "jvm"
//> using lib "com.rabbitmq:amqp-client:5.16.0"
//> using lib "com.typesafe.play::play-json:2.7.4"

import play.api.libs.json.{Json, OFormat}

object SystemProperties extends App { 
   

  val sysProps = new SystemProperties(sys.props.get("java.class.path").getOrElse(""))

  Console.println("Java Version : " + sysProps.javaVersion)

  val libs = sysProps.jarDependencies()
  //
  libs.foreach(println)

} 

final class SystemProperties(rawData: String) {

  private lazy val rawLines: Seq[String]      = rawData.split(":").toSeq
  private val commonLibSplitKeys: Set[String] = Set("maven2", "jcenter.bintray.com")

  def jarDependencies(extraSplitKeys: String*): Set[JarDependency] = {
    val allKeys = commonLibSplitKeys ++ extraSplitKeys

    rawLines.flatMap { l =>
      val key                     = allKeys.find(l.contains(_)).getOrElse("not.going.to.match")
      val jarPath: Option[String] = l.split(key).tail.headOption
      //      println(s"Raw - $l - $key - JarPath - $jarPath")
      jarPath.map(JarDependency.parse)
    }.toSet
  }

  def javaVersion: String = sys.props.get("java.version").getOrElse("unknown")

}

case class JarDependency(group: String, artifact: String, version: String, scalaVersion: Option[String], jar: String)

object JarDependency {

  val sVersions: Set[String] = Set("_2.11", "_2.12", "_2.13")

  implicit class StringPimps(s: String) {

    def notEmpty: Option[String] =
      s match {
        case "" => None
        case _  => Option(s)
      }

    def notBlank: Option[String] = s.notEmpty.flatMap(_ => s.trim.notEmpty)
  }

  def parse(in: String): JarDependency = {

    def stripVersion(in: String): (String, String) =
      sVersions.find { v =>
        in.contains(v)
      } match {
        case None => ("", in)
        case Some(sVer) =>
          in.indexOf(sVer) match {
            case n if n < 1 => ("", in)
            case n          => (in.substring(n + 1), in.substring(0, n))
          }
      }

    val parts: Array[String] = in.split("/").reverse.filterNot(_.isEmpty)

    val jar                      = parts.head
    val version                  = parts.drop(1).head
    val (scalaVersion, artifact) = stripVersion(parts.drop(2).head)
    val group                    = parts.drop(3).toSeq.reverse.mkString(".")
    JarDependency(group, artifact, version, scalaVersion.notBlank, jar)
  }

  implicit val __json: OFormat[JarDependency] = Json.format[JarDependency]
}

scala-cli run SystemProperties.scala

Compiling project (Scala 2.13.8, JVM)
Compiled project (Scala 2.13.8, JVM)
Java Version : 1.8.0_333
JarDependency(com.rabbitmq,amqp-client,5.16.0,None,amqp-client-5.16.0.jar)
JarDependency(com.fasterxml.jackson.core,jackson-core,2.9.8,None,jackson-core-2.9.8.jar)
JarDependency(org.slf4j,slf4j-api,1.7.36,None,slf4j-api-1.7.36.jar)
JarDependency(org.scala-lang,scala-reflect,2.13.8,None,scala-reflect-2.13.8.jar)
JarDependency(com.typesafe.play,play-json,2.7.4,Some(2.13),play-json_2.13-2.7.4.jar)
JarDependency(com.fasterxml.jackson.datatype,jackson-datatype-jsr310,2.9.8,None,jackson-datatype-jsr310-2.9.8.jar)
JarDependency(joda-time,joda-time,2.10.1,None,joda-time-2.10.1.jar)
JarDependency(com.typesafe.play,play-functional,2.7.4,Some(2.13),play-functional_2.13-2.7.4.jar)
JarDependency(com.fasterxml.jackson.datatype,jackson-datatype-jdk8,2.9.8,None,jackson-datatype-jdk8-2.9.8.jar)
JarDependency(com.fasterxml.jackson.core,jackson-databind,2.9.8,None,jackson-databind-2.9.8.jar)
JarDependency(org.scala-lang,scala-library,2.13.8,None,scala-library-2.13.8.jar)
JarDependency(com.fasterxml.jackson.core,jackson-annotations,2.9.8,None,jackson-annotations-2.9.8.jar)