From my experience with Gradle, it's fairly tricky at the build tool level, trying to do it at the CI level must surely be harder. If (for example) I change a

From my experience with Gradle, it's fairly tricky at the build tool level, trying to do it at the CI level must surely be harder. If (for example) I change a value in gradle.properties at the top level, do I need to rerun every test in every sub project? You need detailed knowledge of how the build is structured to decide that.