Ruby Make Dir.glob works on path including tilde ~

Question

I got a nil return when Dir.glob("*", File::FNM_DOTMATCH) meet to a filepath that contains tilde like that :

  ~setup~.mak                            253.0 B

This is the entire instruction :

l = 
  Dir.
    glob("*", File::FNM_DOTMATCH).
    tap { |a| a.shift(2) }.
    map { |p,i| p.force_encoding('utf-8')}.
    sort_by { |d| File.mtime(d) }.reverse!  

How can I solve this?

Answer 1

The issue has nothing to do with tildes.

Dir::glob does not promise to return a sorted list. I suspect your shift(2) is intended to get rid of . and .. but they are not the first two items in the list. Also, you do not need to use banged version of reverse to reverse inplace.

Reject these phantom directories explicitly:

  Dir.
    glob("*", File::FNM_DOTMATCH).
    reject { |a| a =~ /\A\.+\z/ }. # ⇐ THIS
    map { |p, i| p.force_encoding(Encoding::UTF_8) }.
    sort_by { |d| File.mtime(d) }.
    reverse

  # $ touch ~setup~.mak
  # $ ruby -e 'puts Dir.glob("*", File::FNM_DOTMATCH).reject { |a| a =~ /\A\.+\z/ }'
  #⇒ ~setup~.mak