Use babel's sourceRoot option instead of sourceDir

[per2plex]

Babel's native sourceRoot option could be used instead of the plugins sourceDir, but this requires a major rewrite. This would also cleanup some confusing path joining.

Check compatibility with other plugins beforehand.
Also see: #8

[m59peacemaker]

If I got this right, no more worries about confusing path joining. :)

https://www.npmjs.com/package/root-import-utils

getRelativePathToModule() or getLongRelativePathToModule() will take care of it all!

[m59peacemaker]

I don't think sourceRoot does what I had in mind. It produces paths in the sourcemaps like src/../src/etc. I don't have any clue what that is useful for. Here's my plugin for requires.
https://github.com/m59peacemaker/babel-plugin-root-require

[per2plex]

So if I understand correctly, changing sourceRoot had an effect on the generated sourcemaps? Do you think it's not worth using this option?