scripts/sassy.js

import { createRequire } from "module";
import * as fs from 'fs';
import { fileURLToPath } from 'url';
import * as sass from 'sass'

//https://docs.aws.amazon.com/sdk-for-javascript/v3/developer-guide/javascript_s3_code_examples.html

const require = createRequire(import.meta.url);
const path = require('path');
const mime = require('mime-types')
const timer = ms => new Promise(res => setTimeout(res, ms)) 


const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);

const origin = path.join(__dirname, "..", "styles/chartcss")

const destination = path.join(__dirname, "..", "public/chartcss")

const filePaths = [];

const blacklist = [".DS_Store"]


;(async ()=>{

  let filepaths = await getFilePaths(origin)

  for await (const filepath of filepaths) {

    let extension = checkFile(filepath)

    let mimeType = mime.lookup(extension)

    let filename = filepath.split("/").pop()

    let prefix = filename.substring(0, filename.indexOf("."));

    const compressed = sass.compile(filepath, {style: "compressed"});

    let output = await fs.writeFileSync(`${destination}/${prefix}.css`, compressed.css);


  }
  
})()

async function getFilePaths(dir) {

  await fs.readdirSync(dir).forEach(function (name) {
    const filePath = path.join(dir, name);
    
    const stat = fs.statSync(filePath);
    if (stat.isFile()) {
      if (!contains(blacklist, name)) {
        //console.log()
        filePaths.push(filePath);
      }
    } else if (stat.isDirectory()) {
      getFilePaths(filePath);
    }
  })

  return filePaths

};

function contains(a, b) {
    // array matches
    if (Array.isArray(b)) {
        return b.some(x => a.indexOf(x) > -1);
    }
    // string match
    return a.indexOf(b) > -1;
}

function checkFile(file) {
  var extension = file.substr((file.lastIndexOf('.') +1));
  return extension
}