Added .babelrc to .npmignore

[kedrzu]

Your .babelrc file is published to npm. This causes i.e that if I want to transpile my project along with dependencies, I am dependent on your babel configuration (plugins, presets, etc).

Could you please add .babelrc file to .npmignore?

[luisrudge]

can you point me to other projects that do this? I'm not sure what's the guideline for this file tbh

[kedrzu]

You can look i.e. on vuejs or react. They, however, do not use .npmignore, because they have a quite customized build chain, so they don't need it. They both use babel, but if you look into their npm packages, there will be no .babelrc file.

For a full disclosure, why excluding .babelrc from npm would help:

Let's say you have a project with some third-party dependencies written in ES6. To be ES5 compliant you would use babel to transpile your project as well as your dependencies. When you include i.e. babel-loader for node_modules dependencies it would do the job.

Babel will then traverse directory tree to search for .babelrc file. Because auth0-lock includes its own .babelrc in npm package, the result is that it is being used by babel, along with your configured presets and plugins.

This results in indirect dependencies of my project to your babel setup and the need to install all the presets and plugins you use.

[luisrudge]

Thanks for the explanation. That makes a lot of sense. I also found this: facebook/react-native#4062 (comment)

[kedrzu]

Great, you mentioned it, there is plenty of other npm modules that include .babelrc. I would have better argument :)