Dynamic Metadata For Gradle Dependencies

apply plugin: 'java'

configurations.allObjects { configuration ->
    configuration.allDependencies { dependency ->
        dependency.eclipse = new EclipseProps()
    }
}

dependencies {
    compile("junit:junit:4.4") {
        eclipse.export = false
    }
    compile("foo:bar:1.0") {
        eclipse.exclude = true
    }
    compile("org.spockframework:spock:0.4")
}

task showExported << {
    configurations.compile.dependencies.each{ dep ->
        if (dep.eclipse.export) {
            println dep.name
        }
    }
}

class EclipseProps {
    boolean export = true
    boolean exclude = false
}