How to set the language level in Gradle ? (so it is IDE-agnostic)

Question

I would like to set the java language level in gradle, in an IDE-agnostic fashion.

sourceCompatibility = 1.x at the root level seems deprecated in Gradle 2.21.

(edit: or is it? IntelliJ gives me a groovy inspection error)

So I found this, which works.

idea {
    project {
        languageLevel = '1.7'
    }
}

But doesn't the configuration here tie gradle to IntelliJ IDEA, because of the idea { } structure...

Is there a way to do this in an IDE-agnostic fashion?

I would like my gradle build script to run in any IDE (be it IntelliJ IDEA or Eclipse) or on Jenkins (or whatever).

Answer 1

The way to do this for CLI builds is shown. However I'm not sure if every IDE will pick this up.

allprojects {
    tasks.withType(JavaCompile) {
        sourceCompatibility = '1.7'
        targetCompatibility = '1.7'
    } 
}