egg-mock/lib/prerequire.js

const debug = require('util').debuglog('egg-mock:prerequire');
const path = require('path');
const { existsSync } = require('fs');
const globby = require('globby');

const cwd = process.cwd();
const dirs = [];
if (existsSync(path.join(cwd, 'app'))) {
  dirs.push('app/**/*.js');
}
// avoid Error: ENOENT: no such file or directory, scandir
if (existsSync(path.join(cwd, 'config'))) {
  dirs.push('config/**/*.js');
}
const files = globby.sync(dirs, { cwd });

for (const file of files) {
  const filepath = path.join(cwd, file);
  try {
    debug('%s prerequire %s', process.pid, filepath);
    require(filepath);
  } catch (err) {
    debug('prerequire error %s', err.message);
  }
}