Get the code files in your angular application

getFiles.js

const fs        = require('fs');
const { join }  = require('path');
const dir       = './src/app';

const excludeExtns = [
  '.html',
  '.scss',
  '.css',
  '.sass',
  '.spec.ts',
  '.test.ts',
  '.module.ts',
  '.enum.ts',
  '.constants.ts'
]

getTotalFiles = () => {
  let list = getFilesOfDir(dir);
  console.log('Total files - ', list.length);
  console.log(list);
}

getFilesOfDir = (dir, allFiles = []) => {
  const files = fs.readdirSync(dir).map(f => join(dir, f));
  files.forEach(f => {
    if (fs.statSync(f).isDirectory()) {
      getFilesOfDir(f, allFiles);
    } else if (isPreciseFile(f)) {
      allFiles.push(f);
    }
  });
  return allFiles;
}

isPreciseFile = (file) => {
  for (const i of excludeExtns) {
    if (file.includes(i)) {
      return false;
    }
  }
  return true;
}

getTotalFiles();