/*
Where:
origin/
├── foo
│   └── fum.txt
├── bar
│   └── other.txt
└── biz
    └── baf
        └── bop
            └── default.properties

And desired result is:
destination/
└── sub
    ├── fum.txt
    ├── other.txt
    └── default.properties
*/

task copyFile(type: Copy) {
     from "origin"
     into "destination"
     include 'foo/fum.txt', 'bar/other.txt', 'biz/baf/bop/default.properties'
     eachFile { fcd ->
         fcd.path = "sub/${cfd.name}"
     }
}