文件名

2023年01月31日

柏拉文

越努力，越幸运

前言

**通过Node实现批量修改文件名

实现

const fs = require("fs");
const Path = require("path");
const chalk = require("chalk");
const Inquirer = require("inquirer");

const targetDirOptions = [
  {
    name: "test",
    value: {
      path: "./test",
      suffix: "(js|ts)",
    },
  }
];

const selectTargetDir = () => {
  return new Promise((resolve, reject) => {
    const questionList = [
      {
        type: "list",
        name: "value",
        choices: targetDirOptions,
        message: "请选择一个文件夹:",
        validate(val) {
          if (val === "") return "必须选择文件夹!";
          return true;
        },
      },
    ];
    Inquirer.prompt(questionList).then((answers) => {
      resolve(answers.value);
    });
  });
};
const inputTargetName = () => {
  return new Promise((resolve) => {
    const questionList = [
      {
        type: "input",
        name: "value",
        message: "请输入命名前缀:",
      },
    ];
    Inquirer.prompt(questionList).then((answers) => {
      resolve(answers.value);
    });
  });
};
const readDir = (targetPath) => {
  return new Promise((resolve) => {
    fs.readdir(targetPath, (err, files) => {
      if (err) throw err;
      resolve(files);
    });
  });
};
const renameFile = (oldPath, newPath) => {
  return new Promise((resolve) => {
    fs.rename(oldPath, newPath, (err) => {
      if (err) {
        throw err;
      }
      resolve();
    });
  });
};
const rename = (file, targetName) => {
  return new Promise(async (resolve) => {
    try {
      const rootPath = process.cwd();
      const reg = new RegExp(`.*(\.${file.suffix})`, "i");
      const targetPath = Path.resolve(rootPath, file.path);
      const resultFileList = await readDir(targetPath);
      const fileList = resultFileList.filter((filename) => {
        return reg.test(filename);
      });
      for (let index = 0; index < fileList.length; index++) {
        let value = fileList[index];
        let newPathFileName = value.replace(reg, targetName + index + "$1");
        let result = fileList.includes(newPathFileName);
        if (result) {
          return reject("不可与之前命名相同！请重新命名");
        }
      }
      for (let index = 0; index < fileList.length; index++) {
        let value = fileList[index];
        let oldPath = targetPath + "/" + value;
        let newPathFileName = value.replace(reg, targetName + index + "$1");
        let newPath = targetPath + "/" + newPathFileName;
        await renameFile(oldPath, newPath);
      }
      resolve();
    } catch (error) {
      reject(error);
    }
  });
};

async function main() {
  try {
    const resultFile = await selectTargetDir();
    const resultName = await inputTargetName();
    const initFileName = Date.now();
    await rename(resultFile, initFileName);
    await rename(resultFile, resultName);
    console.log(`${chalk.green("✨✨✨重命名成功!")}`);
  } catch (error) {
    console.log(`${chalk.yellow("✨✨✨重命名失败!")}`);
    console.log(`${chalk.blue("失败原因为:")}${chalk.magenta(resultRename)}`);
  }
}

main();