allprojects {
    task hello {
        doLast { task ->
            println "I'm $task.project.name"
        }
    }
}
subprojects {
    hello {
        doLast {
            println "- I depend on water"
        }
    }
}
configure(subprojects.findAll {it.name != 'tropicalFish'}) {
    hello {
        doLast {
            println '- I love to spend time in the arctic waters.'
        }
    }
}