feat: Sass support with esbuild

[jaredcwhite]

Currently Sass is only supported when the Webpack frontend bundler is used. We should provide it as an option for esbuild as well.

[ayushn21]

We could potentially integrate http://github.com/ayushn21/dartsass-ruby to make Sass totally independent from the frontend bundler?

Since we have multiple bundler options, I'm not sure there's a lot of value in integrating it with the bundler .... but I could be wrong?

I don't mind moving that repo over to the Bridgetown organization either if that might make it easier to manage. I've got it set up on a friend's BT project where I ripped out Node completely as he had no JavaScript.

[jaredcwhite]

@ayushn21 I appreciate the context there…I think it makes the most sense though to have Sass run within the esbuild process as a plugin, that way Sass files are importable from JS files and in other situations where the bundler's dependency tree is getting established.

In a broader conversation, I can envision down the road offering a "bundler-free" variant of a Bridgetown site setup, but in that case I don't feel the need to support Sass. Just use vanilla CSS for a zero-build-step config.

[ayushn21]

I think it makes the most sense though to have Sass run within the esbuild process as a plugin, that way Sass files are importable from JS files and in other situations where the bundler's dependency tree is getting established.

Yeah that's fair, I did think of that potential use case after posting that comment :)

I can envision down the road offering a "bundler-free" variant of a Bridgetown site setup, but in that case I don't feel the need to support Sass. Just use vanilla CSS for a zero-build-step config.

Indeed, I agree! 👍