I have recently had to update several configuration files for my company application.
At first I tried to write a simple Java application, but even with Java8 you have to write the code to iterate through the folders to look for the configuration files.
So I searched in Groovy documentation if there were some methods to help me. I found eachFileRecursive that is called for each file inside a folder and sub-folders recursively:
import java.io.File
File folder = new Folder("mypath")
folder.eachFileRecurse { file ->
if(file.absolutePath.contains(".svn")) return
if(file.name == "abc.xml") doSomething(file)
}
It really helped me these days.