build.js

const buildData = require('./build_data');
const buildSrc = require('./build_src');
const buildCSS = require('./build_css');

let _currBuild = null;

// if called directly, do the thing.
buildAll();


function buildAll() {
  if (_currBuild) return _currBuild;

  return _currBuild =
    Promise.resolve()
    .then(() => buildCSS())
    .then(() => buildData())
    .then(() => buildSrc())
    .then(() => _currBuild = null)
    .catch((err) => {
      console.error(err);
      _currBuild = null;
      process.exit(1);
    });
}

module.exports = buildAll;