p5.sound documentation watch script

docwatch.js

/*
Place this in the same directory as your p5.js, p5.js-sound, and p5.js-website repos.

Tested on nodejs version 6+

Usage:
- Run `node docwatch.js` in the root directory.
- Run `grunt watch` in p5.js-sound directory.
- Run `grunt run` in p5.js-website directory.

*/
 
const fs = require('fs');
const path = require('path');
const { spawn } = require('child_process');

// watch p5.sound for changes and copy the output to p5.js `addons`
fs.watchFile('./p5.js-sound/lib/p5.sound.js', function() {
  process.chdir(__dirname);
  const cmd = spawn('cp', ['./p5.js-sound/lib/p5.sound.js', './p5.js/lib/addons/p5.sound.js']);

  // once the compiled p5.js-sound has been moved to p5.js `addons`, generate documentation
  cmd.on('close', function() {
    process.chdir(path.join(__dirname, './p5.js'));
    console.log('running grunt yui:docs');

    const gruntTask = spawn('grunt', ['yui:docs']);
    gruntTask.stdout.on('data', function(data) {
      console.log(`stdout: ${data}`)
    });
    gruntTask.stderr.on('data', function(data) {
      console.log(`stderr: ${data}`)
    });
  });

  cmd.stdout.on('data', function(data) {
    console.log(`stdout: ${data}`)
  });
  cmd.stderr.on('data', function(data) {
    console.log(`stderr: ${data}`)
  });
});

// watch for output of `grunt yui:docs` and copy it to p5.js-website repo
fs.watchFile('./p5.js/docs/reference/data.min.json', function() {
  console.log('copying docs');
  process.chdir(__dirname);
  spawn('cp', ['./p5.js/docs/reference/data.min.json', './p5.js-website/dist/reference/data.min.json']);
  console.log('copied');
});

console.log('watching files for changes');