删除重复文件 JavaScript

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

function getMd5(filePath) {
  const fileData = fs.readFileSync(filePath);
  return crypto.createHash('md5').update(fileData).digest('hex');
}

function findFiles(dirPath, fileList = []) {
  const files = fs.readdirSync(dirPath);

  files.forEach((file) => {
    const filePath = path.join(dirPath, file);
    const stats = fs.statSync(filePath);

    if (stats.isDirectory()) {
      findFiles(filePath, fileList);
    } else if (stats.isFile()) {
      fileList.push(filePath);
    }
  });

  return fileList;
}

function compareMd5AndDeleteDuplicates(fileList) {
  const md5Map = new Map();
  const deleteList = [];

  fileList.forEach((filePath) => {
    const fileName = path.basename(filePath);
    const md5 = getMd5(filePath);

    if (!md5Map.has(md5)) {
      md5Map.set(md5, filePath);
    } else {
      if (fileName.match(/\(\d+\)$/)) {
        deleteList.push(filePath);
      } else {
        deleteList.push(md5Map.get(md5));
        md5Map.set(md5, filePath);
      }
    }
  });

  deleteList.forEach((filePath) => {
    console.log(`Deleting File: ${filePath}`);
    fs.unlinkSync(filePath);
    console.log(`Deleted: ${filePath}`);
  });
}

const currentDir = process.cwd();
const fileList = findFiles(currentDir);
compareMd5AndDeleteDuplicates(fileList);

会优先删除(1)的文件