Nodejs实现多文件夹文件同步

本文实例为大家分享了nodejs实现多文件夹文件同步的具体代码，供大家参考，具体内容如下

package.json

{
 "name": "asyncfile",
 "version": "0.0.1",
 "dependencies":{
 "fs-sync":"",
 "later":""
 }
}

asycnfile.js

var fssync = require('fs-sync');
var fs = require('fs');
var util = require("util");
var later = require("later");

//需要同步的文件夹路径
var path = {
 "pathone": "/home/lincoln/testasync/dirone/",
 "pathtwo": "/home/lincoln/testasync/dirtwo/"
};

//需要同步的文件夹名称
var asyncdir = ["img", "music"];

var dirfilesone;
var dirfilestwo;

//读取文件夹信息
function readdir(dirname){
 dirfilesone = fs.readdirsync(path.pathone + dirname);
 dirfilestwo = fs.readdirsync(path.pathtwo + dirname);
}

//使用fs-sync模块拷贝文件信息
function usefilecopy(sourcepath,distpath,copyfiles) {
 for(var index in copyfiles){
  fssync.copy(sourcepath+copyfiles[index],distpath+copyfiles[index])
 }
}

//统计需要同步的文件信息
function needcopyfiles(sourcefiles, distfiles) {
 var needcopyfiles = [];
 for (var index in sourcefiles) {
  if (distfiles.indexof(sourcefiles[index]) == -1) {
   needcopyfiles.push(sourcefiles[index]);
   console.log("needasyncfile-->"+sourcefiles[index]);
  }

 }
 return needcopyfiles;
}

//同步文件
function copyfile(dirname) {
 var sourcepath = path.pathone + dirname +"/";
 var distpath = path.pathtwo + dirname +"/";

 readdir(dirname)
 usefilecopy(sourcepath,distpath,needcopyfiles(dirfilesone,dirfilestwo));

 readdir(dirname);
 usefilecopy(distpath,sourcepath,needcopyfiles(dirfilestwo,dirfilesone));
}

//for (var index in asyncdir) {
// //console.log(asyncdir[index])
// console.log(new date() +" 执行同步--->"+asyncdir[index])
// copyfile(asyncdir[index]);
//}

var sched = later.parse.recur().every(10).second(),
 t = later.setinterval(function() {
  for (var index in asyncdir) {
   //console.log(asyncdir[index])
   console.log(new date() +" 执行同步--->"+asyncdir[index]);
   copyfile(asyncdir[index]);
  }
 }, sched);

代码只是能用，菜鸟写法，等js这块有深入理解了之后，再修改这块的代码，也希望js大牛指点。

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。