RemoveDir Implementations

removeDirs.nim

## Original Implementation

proc removeDir*(dir: string) =
  for kind, path in walkDir(dir):
    case kind
    of pcFile, pcLinkToFile, pcLinkToDir: removeFile(path)
    of pcDir: removeDir(path)
  rawRemoveDir(dir)

## New Implementation
proc removeDirTwo*(dir: string) =
  ## Method Two
  var stack = @[(pcDir, dir)]
  while stack.len > 0:
    var empty = true
    var (currentKind, currentDir) = stack[stack.len-1]
    for childKind, childPath in walkDir(currentDir):
      if childKind in {pcFile, pcLinkToFile}:
        removeFile(childPath)
      if childKind in {pcDir, pcLinkToDir}:
        stack.add((childKind, childPath))
        empty = false
    if empty:
      rawRemoveDir(stack.pop()[1])