Rename files recursively

rename-files.js

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

const listDir = (dir, fileList = []) => {
  let files = fs.readdirSync(dir);

  files.forEach(file => {
    if (fs.statSync(path.join(dir, file)).isDirectory()) {
      fileList = listDir(path.join(dir, file), fileList);
    } else {
      if (/\.test.tsx$/.test(file)) {
        let src = path.join(dir, file);
        const newSrc = file.replace('.test.tsx', '-test.tsx');
        fileList.push({
          oldSrc: src,
          newSrc: path.join(dir, newSrc),
        });
      }
    }
  });

  return fileList;
};

const foundFiles = listDir('./');

foundFiles.forEach(f => {
  console.log(`Renamed: ${f.oldSrc} -> ${f.newSrc}`);
  fs.renameSync(f.oldSrc, f.newSrc);
});