Substitutig node-zopfi-es with @gfx/zopfli

[dilyanpalauzov]

Here is an example using zopfi but from @gfx/zopfli instead of node-zopfi-es. The advantage of the former is that it does not depend on node-gyp and the disadvantage of the latter is that it takes very, very long on every yarn update.

import { gzipAsync } from '@gfx/zopfli';

… gzipPlugin({
  customCompression: content => gzipAsync(Buffer.from(content), {numiterations: 15}),
  })

[kryops]

hi @dilyanpalauzov , thanks for all your suggestions, I tried to add them to the README 😊

[dilyanpalauzov]

For @gfx/zopfli the readme does not clarify that gzipAsync() must be used. It took me a lot of time to figure this out myself.

[kryops]

😳 of course you're right - my node-zopfli example was wrong already as their gzip function takes a callback as well. Only they provide a gzipSync alternative while @gfx/zopfli provides a gzipAsync alternative 🙄