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mavengradlemaven-publish

Publish multiple Gradle modules in one Maven artifact

I have a library project that consists of two different APIs (a and b) which should operate on the same core and base code. core is hidden from the user of a or b so there is an implementation dependency to core. But base is exposed to the user of a or b so there is an api dependency to base.

Module structure

This is all fine as long as you stay in the Gradle world. But it becomes more complicated when you're publishing a and b with the maven-publish Gradle plugin. It creates an artifact of each of the modules separately and (correctly) outlines dependencies between them. But I don't want to expose core and base separately. Instead, I'd like to bundle them into one artifact for a and b each, where types in core stay internal and those in base are exposed.

Is there a way to do this with maven-publish?

Solution

  • You'll want to create a fat/uber JAR. There are plenty of tutorials out there, but a common approach is to use the Shadow plugin: https://imperceptiblethoughts.com/shadow/

    You would configure the Shadow plugin to have core and base to be embedded/included in a and b without having to publish them.