Ionic hooks: delete all unused folders.

after_prepare\013_unused_folders_delete.js

#!/usr/bin/env node

// Remove unused folder which are not needed by our app.
// v1.0
// Since the lib folder will be deleted we need to move the fonts
// referenced in the css to the root.
// foldersToRemove = array of folders to remove.

var fs = require('fs');
var path = require('path');

var rootDir = process.argv[2];
var platformPath = path.join(rootDir, 'platforms');
var platform = process.env.CORDOVA_PLATFORMS;
var cliCommand = process.env.CORDOVA_CMDLINE;

// hook configuration
var isRelease = (cliCommand.indexOf('--release') > -1) || (cliCommand.indexOf('--runrelease') > -1);
// isRelease = true;

if (!isRelease) {
  return;
}

switch (platform) {
  case 'android':
    platformPath = path.join(platformPath, platform, 'assets', 'www');
    break;
  case 'ios':
    platformPath = path.join(platformPath, platform, 'www');
    break;
  default:
    console.log('this hook only supports android and ios currently');
    return;
}

console.log('************************************************************************************');
console.log('... Removing unused folders ...');
console.log('************************************************************************************');

// Folders you want to remove from the build.
var foldersToRemove = [
  'lib',
  'js'
];

foldersToRemove.forEach(function(folder) {
  removeDir(path.join(platformPath, folder));
});

function removeDir(dirPath) {
  var files = [];
  try {
    files = fs.readdirSync(dirPath);
  } catch (err) {
    console.log('removeDir => Error', err);
    return;
  }
  if (files.length > 0)
    for (var i = 0; i < files.length; i++) {
      var filePath = dirPath + '/' + files[i];
      if (fs.statSync(filePath).isFile()) {
        fs.unlinkSync(filePath);
        // console.log('File deleted: ' + filePath);
      } else {
        removeDir(filePath);
      }
    }
  fs.rmdirSync(dirPath);
  console.log('Folder deleted: ' + dirPath);
}