How to render pug file dynamically instead of using the static angular-cli index.html?

Question

I have an angular 2 application and I need to render index.pug instead of using the static index.html of angular-cli.

So what's the best practice for such thing?

Answer 1

Well, after googling a lot without any luck, I came up with the following workaround:

• In angular-cli.json change "index": "index.html" to "index": "index.pug"
• Rename index.html to index.pug and change its content to be pug content.

• In index.pug you should have two comments where you want to put your styles and script as the following:

  head
    // the next comment is important to replace with styles.
    //- styles
  body
    app-root Loading...
    // the next comment is important to replace with scripts.
    //- scripts
  

• Create parse-index.js in your root and put the following code:

  'use strict';
  
  const fs = require('fs');
  
  const INDENT = '    ';
  
  const INDEX = './dist/index.pug';
  
  let index = fs.readFileSync(INDEX);
  index = index.toString()
    .replace(/<(\s+)?head(\s+)?>|<(\s+)?\/(\s+)?head(\s+)?>/g, '');
  
  let linkPattern = /<(\s+)?link[^<>]+\/?(\s+)?>/g;
  
  let links = index.match(linkPattern);
  
  let scriptPattern = /<(\s+)?script[^<]+<(\s+)?\/(\s+)?script(\s+)?>/g;
  
  let scripts = index.match(scriptPattern);
  
  index = index.replace(linkPattern, '');
  index = index.replace(scriptPattern, '');
  
  scripts.forEach((script, index) => {
    scripts[index] = script.replace(/<|>.+/g, '').replace(/\s/, '(') + ')';
  });
  
  links.forEach((link, index) => {
    links[index] = link.replace(/<|\/(\s+)?>(.+)?/g, '')
      .replace(/\s/, '(') + ')';
  });
  
  index = index.replace(
    /\/\/(\s+)?-?(\s+)?scripts/g, scripts.join('\n' + INDENT)
  );
  
  index = index.replace(/\/\/(\s+)?-?(\s+)?styles/g, links.join('\n' + INDENT));
  
  fs.writeFileSync(INDEX, index);
  

• Finally, in postinstall in package.json put this: ng build --prod && node parse-index.js

I wish if someone introduce a better way!