yhd-cli/lib/filePromise.js

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'use strict';
let fs = require('fs');
/**
 * 写文件操作
 * @param pathname
 * @param data
 * @param options
 * @returns {Promise}
 */
exports.writeFile = (pathname,data,options)=> {
  return new Promise((resolve,reject)=> {
    fs.writeFile(pathname,data,options,(err)=> {
      if(err){
        reject(err);
      }else{
        resolve();
      }
    });
  });
};
/**
 * 读取文件内容
 * @param pathname
 * @returns {Promise}
 */
exports.readFile = (pathname)=> {
  return new Promise((resolve,reject)=> {
    fs.readFile(pathname,(err,data)=>{
      if(err){
        reject(err);
      }else{
        resolve(data);
      }
    });
  });
};
/**
 * 删除空文件夹
 * @param pathname
 * @returns {Promise}
 */
exports.rmdir = (pathname)=> {
  return new Promise((resolve,reject)=> {
    fs.rmdir(pathname,(err)=>{
      if(err){
        reject(err);
        throw new Error(err);
      }else{
        resolve();
        console.log('rm dir successed');
      }
    });
  });
};
/**
 * 读取文件夹里面的内容
 * @param pathname
 * @returns {Promise}
 */
exports.readdir = (pathname)=> {
  return new Promise((resolve,reject)=> {
    fs.readdir(pathname,(err,files)=>{
      if(err){
        reject(err);
        throw new Error(err);
      }else{
        resolve(files);
      }
    });
  });
};
/**
 * 递归删除文件夹
 * @param path
 */
const deleteFolderRecursive = function(path) {
  var files = [];
  if( fs.existsSync(path) ) {
    files = fs.readdirSync(path);
    files.forEach(function(file,index){
      var curPath = path + "/" + file;
      if(fs.statSync(curPath).isDirectory()) { // recurse
        deleteFolderRecursive(curPath);
      } else { // delete file
        fs.unlinkSync(curPath);
      }
    });
    fs.rmdirSync(path);
  }
};
/**
 * 删除非空文件夹
 * @param pathname
 */
exports.rmfolder = (pathname)=> {
  deleteFolderRecursive(pathname);
};