purify-code/lib/cleaner.js

A CLI tool to remove console.log, debugger, and comments from JS/TS files

import fs from "fs";
import path from "path";

export function cleanFolder(dir) {
  fs.readdirSync(dir).forEach((file) => {
    const fullPath = path.join(dir, file);
    const stat = fs.statSync(fullPath);

    if (stat.isDirectory()) {
      cleanFolder(fullPath);
    } else if (/\.(js|ts)$/.test(file)) {
      const code = fs.readFileSync(fullPath, "utf-8");
      const cleaned = cleanCode(code);
      fs.writeFileSync(fullPath, cleaned);
      console.log(`✔ Cleaned: ${fullPath}`);
    }
  });
}

function cleanCode(code) {
  return code
    .replace(/console\.log\(.*?\);?/g, "") // Remove console.logs
    .replace(/debugger;?/g, "") // Remove debuggers
    .replace(/\/\/.*?(TODO|FIXME).*?$/gm, "") // Remove TODO/FIXME comments
    .replace(/\/\/.*$/gm, "") // Remove single-line comments
    .replace(/\/\*[\s\S]*?\*\//gm, "") // Remove block comments
    .replace(/^\s*\n/gm, ""); // Remove empty lines
}