code: func hasPermissionToDir(info os.FileInfo) bool {
  	user, err := user.Current()
  	if err != nil {
  		return true
  	}
  	uid, _ := strconv.Atoi(user.Uid)
  	// super-user
  	if uid == 0 {
  		return true
  	}
  
  	st, _ := info.Sys().(*syscall.Stat_t)
  	if st == nil {
  		return true
  	}
  	perm := info.Mode().Perm()
  	// user (u)
  	if perm&0100 != 0 && st.Uid == uint32(uid) {
  		return true
  	}
  
  	gid, _ := strconv.Atoi(user.Gid)
  	// other users in group (g)
  	if perm&0010 != 0 && st.Uid != uint32(uid) && st.Gid == uint32(gid) {
  		return true
  	}
  	// remaining users (o)
  	if perm&0001 != 0 && st.Uid != uint32(uid) && st.Gid != uint32(gid) {
  		return true
  	}
  
  	return false
  }
docs: // hasPermissionToDir returns if the OS current user has execute permission
  // to the given directory