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Infer dependencies in Gradle subproject from its parent project

Time:12-18

I currently have 3 subprojects in my Gradle project, structured like so:

Main Project
| 
-- Project A
-- Project B
-- Common Src

Project A has dependency on Lib A and Common Src, and Project B has dependency on Lib B and Common Src. Lib A and Lib B contain different implementations of the same classes.

My plan for Common Src project was to house all of the utility classes, necessarily depending on both Lib A and Lib B.

Is there a way to set this up, and how should my gradle project look like?

Things that I've tried:

  1. I've tried to remove Common Src as a subproject and just include it in the sourceSets of Project A and Project B. However, IntelliJ seems to mark Common Src as sources root of Project A, and even though build-through-gradle works, I cannot get IntelliJ to recognize that Project B also has sources root in Common Src.
  2. Add both Lib A and Lib B to dependency of Common Src, but obviously that doesn't work.

The background:

I've created a Minecraft mod compatible with both Forge (Project A) and Fabric (Project B) modloaders. I have utility classes in both projects that have the same source code but need to be compiled twice, each time with a different dependency. I don't want to have to write the code twice each time I want to change something in the Utility classes.

CodePudding user response:

EDIT: I've found a workaround:

  1. In both Project A and Project B, add a task in each of their build.gradle to copy the source files from Common Src to the build directory of each project.
  2. Configure sourceSets of both Project A and Project B to include source files from the build folder we just copied into
  3. Configure Common Src to be a gradle subproject, and add Lib A (or Lib B) to the dependencies of Common Src (just to get IntelliJ some context)
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