Hack File.fnmatch to support braces eg. "*.{ht,x}ml"

fnmatch_bracket_hack.rb

# Hack File.fnmatch to support braces
# eg. "*.{ht,x}ml"
class ::File
  class << self
    alias :_fnmatch :fnmatch
    def fnmatch(pattern, path, flags = 0)
      regex = /\{(.+)\}/i

      # Look for braces
      if match = pattern.match(regex)

        # Split by commas and run fnmatch on each of
        # the possibilities looking for matches
        patterns = match[1].split(",").collect do |m|
          _fnmatch(pattern.gsub(regex, m), path, flags)
        end

        # Return early
        return patterns.include?(true)
      end

      # Fallback to original
      _fnmatch(pattern, path, flags)
    end
  end
end