feat(sass): added compatibility for sass

[svsalvador]

No description provided.

[next-joserepresa]

think of adding broccoli-persistent-filter to speed-up the build. This is a simple step, you only have to wrap your tree inside other tree.

[next-joserepresa]

Sync functions are fastest than the async ones, but blocks the main Node thread until ends. Broccoli use promises to manage async work:

const utils = require('utils');
const readFile = util.promisify(fs.readFile);

template = await readFile(sassTemplate, 'utf8');

Using fs-extra is not neccesary to promisify the funcion:

const fs = require('fs-extra');

template = await fs.readFile(sassTemplate, 'utf8');

[svsalvador]

Done!

[next-joserepresa]

Instead of declare 2 properties to pass the templates, I think it would be easies to define a map where the key is the file extension and the value is the template path:

styleTemplates: {
    css: '......',
    sass: '......'
}

This simplifies your code when retrieving the path and prevent using a lot of arguments if you add support for more templates:

this._getTreeWithImportedStyles(dirname, this.config.styleTemplates)

// ...

const template = await readFile(styleTemplates[fileExtension], 'utf8');;

[svsalvador]

Nice one. I have implemented your recommendation. Check it out!