Symlinks to directories reported as symlinks to files

[gradha]

Under OSX and Linux symlinks to directories are reported as symlinks to files. See the following test.nim:

import os

const target = "target_dir"

proc test() =
  discard execShellCmd("mkdir -p source_dir")
  if not target.existsDir:
    discard execShellCmd("ln -s source_dir " & target)

  for kind, path in walkDir("."):
    echo kind, " with path '", path, "'"

when isMainModule: test()

Compiling and running generates:

$ nim c -r test.nim
…
pcDir with path './nimcache'
pcDir with path './source_dir'
pcLinkToFile with path './target_dir'
pcFile with path './test'
pcFile with path './test.nim'

I was expecting to get a pcLinkToDir instead.

[Varriount]

I don't have a linux system at the moment to test this on, but I suspect this might be due to S_ISDIR not returning true for symlinks to directories.

As a side note, the directory walking procedures should be replaced with something more efficient and flexible - the current ones have unnecessary limitations.