with

abstract fun with(sourceSpecs: Array<CopySpec>): CopySpec(source)

Adds the given specs as a child of this spec.

def contentSpec = copySpec {
  from("content") {
    include "**/*.txt"
  }
}

task copy(type: Copy) {
  into "$buildDir/copy"
  with contentSpec
}

this

sourceSpecs

The specs to add