with_tmp_fs.fy

def with_tmp_fs: block {        
  tmp_path_names = []
  block arity times: |i| {
    path = "/tmp/tmp_path_#{i}"
    tmp_path_names << path
    Directory create: path
  }
  block call: tmp_path_names
  tmp_path_names each: |p| {
    Directory delete!: p
  }
}

# usage:
with_tmp_fs: |tmp1 tmp2 tmp3| {
  # do stuff here with tmp paths
}