How can I get a jar from kotlin code if I don't use classes?

Question

I want to make a jar of a couple of.kt files which contains code that are functions. I don't have classes. My directory looks like this.

src
|--- myPackage
|      |--- fileone.kt
|      |--- filetwo.kt
|--- myMainFile.kt

myMainFile.kt calls functions from myPackage. I'm interested in generating a jar using the command line.

I used kotlinc myMainFile.kt myPackage -include-runtime -d myRunnable.jar and it did generate myRunnable.jar however it didn't work when I tried to run it. I get the following error message: no main manifest attribute, in myRunnable.jar

Answer 1

Kotlin will generate class for you. It will be named MyMainFileKt.

So, to make jar runnable, you will need to provide META-INF/MANIFEST.MF file with the following content:

Manifest-Version: 1.0
Main-Class: MyMainFileKt