sassdoc-theme-herman/lib/utils/assets.js

An Odd SassDoc theme.

'use strict';

const { Transform } = require('readable-stream');
const vfs = require('vinyl-fs');

module.exports = function assets(src, dest, options = {}) {
  const { parser, env } = options;
  Reflect.deleteProperty(options, 'parser');
  Reflect.deleteProperty(options, 'env');
  const opts = Object.assign({ allowEmpty: true }, options);
  return new Promise((resolve, reject) => {
    let stream = vfs.src(src, opts);
    if (parser) {
      const transform = new Transform({
        objectMode: true,
        transform: (file, enc, cb) => {
          parser(file, enc, env);
          return cb(null, file);
        },
      });
      stream = stream.pipe(transform);
    }
    stream.pipe(vfs.dest(dest)).on('error', reject).on('finish', resolve);
  });
};