[fbjs-scripts] Babel dependency quite large for packages not using jest preprocessor about fbjs

[mkonicek]

This is where React Native uses fbjs-scripts: https://github.com/facebook/react-native/search?utf8=%E2%9C%93&q=fbjs-scripts

@martinbigio, @davidaurelio is there a way we can drop the dependency on fbjs-scripts?

[zpao]

You could copy those 2 things (for jest prepackager and packager transformer) in to RN but that defeats the purpose of a shared library like this that benefits multiple people. And you'd stop getting updates if they came along. Obviously not my call but I'm inclined to disagree with that approach and see if we can get the dependencies worked out instead.

[ide]

A simple solution is to upgrade to Babel 6 and rely on the fact that RN depends on Babel anyway and let npm 3 dedupe the dependencies.

Another idea is to publish many packages instead of one fbjs-scripts package. That way as a dependent you'd pay for only what you use. I would think the overhead of publishing many packages is too high but Babel has managed to automate publishing dozens of plugins.