discord.js/docs/generator/doc-scanner.js

/* eslint no-console:0 no-return-assign:0 */
const parse = require('jsdoc-parse');

module.exports = class DocumentationScanner {
  constructor(generator) {
    this.generator = generator;
  }

  scan(directory) {
    return new Promise((resolve, reject) => {
      const stream = parse({
        src: [`${directory}*.js`, `${directory}**/*.js`],
      });

      let json = '';
      stream.on('data', chunk => json += chunk.toString('utf-8'));
      stream.on('error', reject);
      stream.on('end', () => {
        json = JSON.parse(json);
        resolve(json);
      });
    });
  }
};