getFilePaths.js

function getFilePaths(
  folderPath,
  customFilter = () => true,
  maxDepth = -1,
  depth = 0
) {
  if (depth == maxDepth) return [];

  const entries = readdirSync(folderPath).map((entries) =>
    Path.join(folderPath, entries)
  );

  const files = []

  for (const entry of entries) {
    if(statSync(entry).isFile() && customFilter(entry)) {
      files.push(entry)
    } 

    if(statSync(entry).isDirectory()) {
      files.push(...getFilePaths(entry, customFilter, maxDepth, depth + 1))
    }
  }

  return files;
}