node walk-and-transform.js ./src/client/scripts

walk-and-transform.js

const fs = require('fs');
const path = require('path');
const chalk = require('chalk');
const walk = require('fs-walk');

function transform(fileContent) {
  const result = fileContent;

  if (!fileContent.includes('angular.module')) {
    return result;
  }

  let lines = result.split('\n');

  let lastImportLines;
  lines.forEach((line, index) => {
    if (line.startsWith('import ') && !line.startsWith('import {')) {
      lastImportLines = index;
      return true;
    }
  });

  let importLines = lines.splice(0, lastImportLines + 1);
  if (lines[0] !== '') {
    importLines.push('');
  }
  // let moduleNameLine;
  // let exportLine;
  // importLines.forEach((line, index) => {
  //   if (line.startsWith('const MODULE_NAME')) {
  //     moduleNameLine = index;
  //   }
  // });
  //
  // if (moduleNameLine !== undefined) {
  //   importLines.push(importLines[moduleNameLine]);
  //   importLines.splice(moduleNameLine, 1);
  // }
  //
  // importLines.forEach((line, index) => {
  //   if (line.startsWith('export default')) {
  //     exportLine = index;
  //   }
  // });
  //
  // if (exportLine !== undefined) {
  //   importLines.push(importLines[exportLine]);
  //   importLines.splice(exportLine, 1);
  // }

  return [...importLines, ...lines].join('\n');
}

const folder = process.argv[process.argv.length - 1];

walk.files(path.resolve(process.cwd(), folder), (basedir, filename, stat, next) => {
  if (filename.endsWith('.js') && basedir.indexOf('vendors') === -1) {
    fs.readFile(path.join(basedir, filename), (err, data) => {
      if (err) throw err;
      const result = transform(data.toString());
      console.log(chalk.green('writing results to'), path.join(basedir, filename));
      fs.writeFile(path.join(basedir, filename), result, next);
    });
  } else {
    next();
  }
});