prepareWebProd.js

const {readFile, writeFile, copy} = require('fs-extra');
const homepage = require('./package.json').homepage;
const version = require('./package.json').version;
const repository = require('./package.json').repository;

const inputIndexPath = `${__dirname}/app/index.html`;
const input404Path = `${__dirname}/app/404.html`;
const inputNoJekyllPath = `${__dirname}/app/.nojekyll`;
const inputBundles = `${__dirname}/app/bundles`;

const outputIndexPath = `${__dirname}/docs/index.html`;
const output200Path = `${__dirname}/docs/index.html`;
const output404Path = `${__dirname}/docs/404.html`;
const outputNoJekyllPath = `${__dirname}/docs/.nojekyll`;
const outputBundles = `${__dirname}/docs/bundles`;

let fixed;
let fixed404;

readFile(inputIndexPath, 'utf8')
  .then(str => {
    fixed = str
      .replace(/="\//g, `="${homepage}/`)
      .replace(`window.__PUBLIC_URL__ = '';`, `window.__PUBLIC_URL__ = '${homepage}';`)
      .replace(`window.__DICTO_VERSION__ = '';`, `window.__DICTO_VERSION__ = '${version}';`)
      .replace(`window.__SOURCE_REPOSITORY__ = '';`, `window.__SOURCE_REPOSITORY__ = '${repository}';`)
    return writeFile(outputIndexPath, fixed, 'utf8')
  })
  .then(() => writeFile(output200Path, fixed, 'utf8'))
  .then(() => readFile(input404Path, 'utf8'))
  .then(str404 => {
    fixed404 = str404
      .replace(/="\//g, `="${homepage}/`);
    return writeFile(output404Path, fixed404, 'utf8')
  })
  .then(() => copy(inputNoJekyllPath, outputNoJekyllPath))
  .then(() => copy(inputBundles, outputBundles))
  .catch(console.error)