vendor/k8s.io/kubernetes/hack/gen-swagger-doc/build.gradle

buildscript {
    repositories {
        mavenLocal()
        jcenter()
    }

    dependencies {
        classpath 'io.github.robwin:swagger2markup:0.6.0'
    }
}

task gendocs << {
  io.github.robwin.swagger2markup.Swagger2MarkupConverter
    .from("./input.json")
    .build()
    .intoFolder("./");
  println '*** generating docs to ./'
}