Multi Module Project gradle - multiple or single build.gradle

Question

I've seen different layouts for a multi-module project where some will have a single build.gradle while others projects will have a build.gradle at the root and a build.gradle in each subproject. I was wondering what is the difference and which layout is preferred?

Answer 1

You can use a single build.grade in the root project to inject configuration to all sub-projects using the allprojects or subprojects script blocks. This will work well for defining a common configuration for all projects/sub-projects and is mostly suitable where all projects are of the same type.

However, if some of the sub-projects needs to be further customized then the right place for these customization would be in the build.gradle file located in the sub-project folder.

You can read more about your options for configuring multi-project builds in gradle documentation here , and some more information about your options in organizing your build logic in gradle user guild here .