when 'darwin-i386'
          case resource.version
          when '0.18.1' then '44c26daf01517e493de15e0d93afa500cb38fffdd12192abc58a9f85734224a0'
          when '0.18.0' then 'a3cb126143275374234255fae929c06193434761cc365854e87cf0fa552312fd'
          when '0.16.0' then '326f1bc31e770758b952f7313afcf89e7227ee2a472f4e6fe5c0f763debc48ee'