Renaming files

build.gradle

//Renaming files using regular expressions
task rename(type: Copy) {
  from 'source'
  into 'dest'
  rename(/file-template-(\d+)/, 'production-file-$1.txt')
}
//Renaming files programmatically
task rename(type: Copy) {
  from 'source'
  into 'dest'
  rename { fileName ->
    "production-file${(fileName - 'file-template')}"
  }
}