zeit_ncc_build_folder.js

var fs = require('fs');
var path = require('path');
var glob = require('glob');
var mkdirp = require('mkdirp');
var ncc = require('@zeit/ncc');

var dist = path.join(__dirname, 'dist');
var distRoutes = path.join(dist, 'routes');

var src = path.join(__dirname, 'src');
var srcRoutes = path.join(src, 'routes');


// check if src exists
console.log(`
Building route files
`)

if (fs.existsSync(src)) {

  // list all files in directory

  glob(path.join(srcRoutes, '/**/*.js'), function (err, files) {
    if (!err) {
      files.forEach(file => {
        const base = file.replace(srcRoutes, '');
        const completePath = path.join(dist, base);
        const outputDir = path.dirname(completePath);

        mkdirp(outputDir, err => {
          if (!err) {
            console.log('Compiling ==>', base);
            ncc(file, {
              // provide a custom cache path or disable caching
              cache: false,
              minify: false, // default
              sourceMap: false, // default
              sourceMapRegister: false, // default
              watch: false // default
            }).then(({ code }) => {
              fs.writeFileSync(completePath, code);
              if (fs.existsSync(completePath)) {
                console.log('Output ==>', completePath);
              }
            })
          }
        });
      })
    }
  });
}