CODEWITHSUNDEEP
scalajarpackage
SRobertJames
SRobertJames

Reputation: 9198

How can I package a simple single Scala file as a stand-alone jar (no sbt)?

I have a very simple Scala file which I need to send to someone to execute on a machine without Scala (only Java). It's just one file, with one dependency on a jar (other than scala itself).

I'm struggling to package it properly. I'm not using sbt or anything. What's the simplest way to package it up?

Upvotes: 3

Views: 3211

Answers (1)

rarry
rarry

Reputation: 3573

Assuming you have a file Test.scala

object Test {
  def main(args: Array[String]){
    println("Hello world!")     
  }
}

compile it with scalac

scalac Test.scala

Create file Manifest.txt with the following content:

Manifest-Version: 1.0
Created-By: 1.6.0_31 (Sun Microsystems Inc.)
Main-Class: Test

Copy scala library from your distribution into the current folder and unzip it:

unzip scala-library.jar

execute the command:

jar cvfm Hello.jar Manifest.txt *.class library.properties scala/

Send it to your addressee. He/she will have to execute

java -cp Hello.jar

Upvotes: 2

Related Questions