How to specify IntelliJ Exclude Directories using Gradle?

Question

Using IntelliJ to open a build.gradle file, in the \"Import Project from Gradle\" window, the \"Excluded Roots\" are pre-populated with the .gradle

Answer 1

As shown in the Gradle Build Language Reference, you can configure the idea.module.excludeDirs property, which is of type List. Apparently IDEA doesn't support including subdirectories of excluded directories, so you'll have to exclude all siblings of build/generated-sources. For example:

idea {
    module {
        excludeDirs = [file(".gradle")]
        ["classes", "docs", "dependency-cache", "libs", "reports", "resources", "test-results", "tmp"].each {
            excludeDirs << file("$buildDir/$it")
        }
    }
}

If supported by the Protocol Buffer plugin, it may be easier to put the generated sources into a place outside build, and make that place known to the clean task (e.g. clean.delete "generated-sources").