Main should be a place for libraries, not sources

[alber70g]

The main should contain files that can be used as library, not as sources. They can also contain the sources in forms of less, sass, or even d.ts files, so that the consuming party can choose based on filetype what to use and include in the project. Arguably even .min.js can also be added as it's the 'definitive' version of a 'compiled' library.

See also twbs/bootstrap compliance to the spec issues: twbs/bootstrap#16663

[HeroBart]

+1, please accept this pull request, I don't feel like compiling all the external libraries myself every time.

[desandro]

Thanks for this contribution. We have resolve that main is for entry-point source files, not for distribution files. To resolve the Bootstrap issue, I've proposed a new files field. See #47.

We'll have to pass on the PR, but your efforts are appreciated.

[sheerun]

I think files doesn't solve it, because it lists all files, not main entry-points. I think we should accept this pull request and ask bootstrap to add compiled .css files again to main (they are different filetype than .scss, and they are "library endpoint", as they can be linked in html file, or required in other way).

That said files would be useful for libraries without main entry-points, like CSS libraries. Or for packages with optional files, like translations.

[cvrebert]

"as well"

[cvrebert]

I don't think saying "as a library" offers any clarification. If anything, it makes me think of stuff like a library of Less/Sass mixins that the user would then import and use in their own Less/Sass file, which is in the opposite direction of what you're actually intending to propose.