LightningCSS Compile

compile.js

#!/usr/bin/env node
import lightningcss from '/usr/lib/node_modules/lightningcss/node/index.js';
import fs from 'fs/promises';
import * as path from 'path';

const {transform} = lightningcss;

if (process.argv.length!=4) {
  console.log('Usage: compile.js <inputfile> <outputfile>');
  process.exit(1);
}

let infile=process.argv[2];
let outfile=process.argv[3];

const codeBuffer=await fs.readFile(infile);
const mapBuffer=await fs.readFile(infile+".map");

let { code, map } = transform({
  filename: 'style.css',
  code: Buffer.from(codeBuffer),
  inputSourceMap: Buffer.from(mapBuffer),
  minify: true,
  sourceMap: true
});

await fs.writeFile(outfile,code);
await fs.writeFile(outfile+".map",map);

package.json

{
    "type": "module"
}