选择一个随机文件，然后使用node.js移动

Question

我正在尝试使用我的Twitter机器人修复错误，基本上，有一个带有所有文件夹文件名的数组再次相同的图像，我该如何修复？

这是代码

var fs = require('fs'),
    path = require('path'),
    Twit = require('twit'),
    set = require(path.join(__dirname, 'set.js'));
    //array of files
    files_memes = require(path.join(__dirname, 'files.js'))
var currentdate = new Date();
var upl = "Subido: "
          + currentdate.getHours() + ":"
          + currentdate.getMinutes()+ " hs.";
var setMin = 10;
var T = new Twit(set);
function random_file(){
  var allFiles = (files_memes)//array
  return allFiles[Math.floor(Math.random() * allFiles.length)];
}
var filename = (random_file());
var imgPATH = path.join(__dirname, '/memestorage/queue/' + filename);

//image selection and upload
function upload_random_image(){
  console.log('Opening file...');
  var image_path = imgPATH,
      b64content = fs.readFileSync(image_path, { encoding: 'base64' });
  console.log('Uploading file...');
  T.post('media/upload', { media_data: b64content }, function (err, data, response) {
    if (err){
      console.log('ERROR');
      console.log(err);
    }
    else{
      console.log('File loaded!');
      T.post('statuses/update', {
        media_ids: new Array(data.media_id_string)
      },
        function(err, data, response) {
          if (err){
            console.log('Error!');
            console.log(err);
          }
          else{
            console.log('Tweeted!');
            console.log(upl);
            console.log('Next tweet in ' + setMin + ' min.');
          }
        }
      );
    }
  });
}
//timer
setTimeout(
      upload_random_image,
        0
    );
setInterval(
      upload_random_image,
      1000*10
    );

我尝试了

...
var filename = (random_file());
var pfile = ("posted"+random_file());
var imgPATH = path.join(__dirname, '/memestorage/queue/' + filename);
var postedFile = path.join(__dirname, '/memestorage/posted/' + pfile);
fs.rename(imgPATH, postedFile, function(err) {
  if ( err ) console.log('ERROR: ' + err);
});
//image selection and upload
function upload_random_image(){
  console.log('Opening file...');
  var image_path = imgPATH,
      b64content = fs.readFileSync(imgPATH, { encoding: 'base64' });
...

但一遍又一遍地发布相同的图像，或者有时会发出此错误消息：

fs.js:640
  return binding.open(pathModule._makeLong(path), stringToFlags(flags), mode);
                 ^
Error: ENOENT: no such file or directory, open 'D:memesbotmemestoragequeue645 (2).jpg'
    at Error (native)
    at Object.fs.openSync (fs.js:640:18)
    at Object.fs.readFileSync (fs.js:508:33)
    at Timeout.upload_random_image [as _onTimeout] (D:memesbotmemes.js:29:23)
    at ontimeout (timers.js:365:14)
    at tryOnTimeout (timers.js:237:5)
    at Timer.listOnTimeout (timers.js:207:5)

希望有人可以帮助我，谢谢。

Answer 1

代码似乎是在开始时生成随机文件（var filename = (random_file());），但在upload_random_image()的运行中不生成随机文件。

因此，使用setInterval

随机选择文件，而upload_random_image被称为多次

解决方案：

移动方法upload_random_image

内部的线下方

var filename = (random_file());
var imgPATH = path.join(__dirname, '/memestorage/queue/' + filename);