starts windows cmd in short path (requires ruby)

shortcmd.bat

@ruby -x "%~f0" %*
@exit /b
#!ruby -Ks
require 'Win32API'

GetShortPathName = Win32API.new('kernel32', 'GetShortPathName', 'ppi', 'i')

def get_short_path_name(path)
  len = GetShortPathName.call(path, nil, 0)
  
  raise if len.zero?
  
  buffer = "\0" * len
  GetShortPathName.call(path, buffer, len)
  buffer.tr('/', '\\')
end

Dir.chdir get_short_path_name(Dir.pwd)

exec ENV['COMSPEC']