Error eperm operation not permitted copyfile

Here, neither you’re checking the read permission of your source file nor the write permission of the destination directory.

And by the way fs.exists is marked deprecated in the docs.

I’ve implemented a copyFile function below. See if it works for you.

const path = require("path");
const fs = require("fs");

// Note I'm using the promised version of fs
const fsp = fs.promises;

async function copyFile(sourceDirPath, destDirPath, filename) {
  const sourceFilePath = path.join(sourceDirPath, filename);
  const destFilePath = path.join(destDirPath, filename);
  try {
    await fsp.access(sourceFilePath, fs.constants.R_OK);
    await fsp.access(destDirPath, fs.constants.W_OK);
    await fsp.copyFile(sourceFilePath, destFilePath);

    console.log("File copied successfully.");
  } catch (ex) {
    if (ex.errno === -2)
      console.error(`File "${sourceFilePath}" doesn't exist.`);
    else if (ex.errno === -13)
      console.error(`Could not access "${path.resolve(destDirPath)}"`);
    else
      console.error(`Could not copy "${sourceFilePath}" to "${destDirPath}"`);

    // console.log(ex);
  }
}

copyFile("./", "./output", "file.txt");

My Folder structure:

|- copyFile.js
|- file.txt
|- output/
   |-

graceful-fs@4.1.15

Error occurs on Windows 10 whether I am in DOS (Admin mode or not), Powershell (Admin mode or not), or GitBash.

Environment:
npm 6.4.1
node v10.14.2
tsc 3.2.2

Tutorial I am working through: https://gonehybrid.com/ionic-4-appsync-set-up-authentication-with-amazon-cognito-part-5/

I was able to work around this issue by always deleting the dest file when any error occurs and then trying again.

NOTE: You will notice that I also added 10 re-attempts to allow for the chance that files were being locked by virus protection, but that did not seem to be the case in my situation.

FILE: %userprofile%AppDataRoamingnpmnode_modules@aws-amplifyclinode_modulesfs-extralibcopy-synccopy-sync.js

`
function wait(ms) {
var start = Date.now(),
now = start;
while (now — start < ms) {
now = Date.now();
}
}

function copyFile(srcStat, src, dest, opts) {
if (typeof fs.copyFileSync === ‘function’) {
console.log(‘———————————-‘);
console.log(‘———————————-‘);
console.log(‘fs.copyFileSync( src=’ + src + ‘,’);
console.log(‘ dest=’ + dest + ‘)’);

let fileCopyDone = false;
let attempts = 0;
do {
  try {
    attempts++;
    console.log('Attempt #' + attempts + '...');
    fs.copyFileSync(src, dest)
    fileCopyDone = true;
  } catch (err) {
    console.log('ERROR: fs.copyFileSync: ' + err.message);
    if (attempts > 10)
      throw err;
    wait(300);
    if (basicFs.existsSync(dest)) {
      console.log('Delete dest file: ' + dest);
      try {
        basicFs.unlinkSync(dest);
        console.log('successfully deleted: ' + dest);
      } catch (err) {
        console.log('ERROR: basicFs.unlinkSync: ' + err.message);
      }
    }
  }
} while (!fileCopyDone);

console.log('----------------------------------');
console.log('fs.chmodSync(dest=' + dest + ',');
console.log('    srcStat.mode=' + srcStat.mode + ')');
fs.chmodSync(dest, srcStat.mode)
console.log('----------------------------------');
console.log('----------------------------------');
if (opts.preserveTimestamps) {
  return utimesSync(dest, srcStat.atime, srcStat.mtime)
}
return

}
return copyFileFallback(srcStat, src, dest, opts)
}

`

Detailed error message:

2018-12-16T18:08:39.503Z — error: uncaughtException: EPERM: operation not permitted, copyfile ‘C:UsersRichaprojectsquiz-appamplifybackendapiquizappbuildschema.graphql’ -> ‘C:UsersRichaprojectsquiz-appamplify#current-cloud-backendapiquizappbuildschema.graphql’ date=Sun Dec 16 2018 12:08:39 GMT-0600 (Central Standard Time), pid=23448, uid=null, gid=null, cwd=C:UsersRichaprojectsquiz-app, execPath=C:Program Filesnodejsnode.exe, version=v10.14.2, argv=[C:Program Filesnodejsnode.exe, C:UsersRichaAppDataRoamingnpmnode_modules@aws-amplifyclibinamplify, push], rss=123424768, heapTotal=99049472, heapUsed=76451904, external=2053595, loadavg=[0, 0, 0], uptime=89738, trace=[column=3, file=fs.js, function=Object.copyFileSync, line=1724, method=copyFileSync, native=false, column=12, file=C:UsersRichaAppDataRoamingnpmnode_modules@aws-amplifyclinode_modulesfs-extralibcopy-synccopy-sync.js, function=copyFile, line=85, method=null, native=false, column=12, file=C:UsersRichaAppDataRoamingnpmnode_modules@aws-amplifyclinode_modulesfs-extralibcopy-synccopy-sync.js, function=mayCopyFile, line=60, method=null, native=false, column=47, file=C:UsersRichaAppDataRoamingnpmnode_modules@aws-amplifyclinode_modulesfs-extralibcopy-synccopy-sync.js, function=onFile, line=53, method=null, native=false, column=32, file=C:UsersRichaAppDataRoamingnpmnode_modules@aws-amplifyclinode_modulesfs-extralibcopy-synccopy-sync.js, function=getStats, line=47, method=null, native=false, column=10, file=C:UsersRichaAppDataRoamingnpmnode_modules@aws-amplifyclinode_modulesfs-extralibcopy-synccopy-sync.js, function=startCopy, line=37, method=null, native=false, column=10, file=C:UsersRichaAppDataRoamingnpmnode_modules@aws-amplifyclinode_modulesfs-extralibcopy-synccopy-sync.js, function=copyDirItem, line=166, method=null, native=false, column=39, file=C:UsersRichaAppDataRoamingnpmnode_modules@aws-amplifyclinode_modulesfs-extralibcopy-synccopy-sync.js, function=fs.readdirSync.forEach.item, line=159, method=item, native=false, column=null, file=null, function=Array.forEach, line=null, method=forEach, native=false, column=23, file=C:UsersRichaAppDataRoamingnpmnode_modules@aws-amplifyclinode_modulesfs-extralibcopy-synccopy-sync.js, function=copyDir, line=159, method=null, native=false], stack=[Error: EPERM: operation not permitted, copyfile ‘C:UsersRichaprojectsquiz-appamplifybackendapiquizappbuildschema.graphql’ -> ‘C:UsersRichaprojectsquiz-appamplify#current-cloud-backendapiquizappbuildschema.graphql’, at Object.copyFileSync (fs.js:1724:3), at copyFile (C:UsersRichaAppDataRoamingnpmnode_modules@aws-amplifyclinode_modulesfs-extralibcopy-synccopy-sync.js:85:12), at mayCopyFile (C:UsersRichaAppDataRoamingnpmnode_modules@aws-amplifyclinode_modulesfs-extralibcopy-synccopy-sync.js:60:12), at onFile (C:UsersRichaAppDataRoamingnpmnode_modules@aws-amplifyclinode_modulesfs-extralibcopy-synccopy-sync.js:53:47), at getStats (C:UsersRichaAppDataRoamingnpmnode_modules@aws-amplifyclinode_modulesfs-extralibcopy-synccopy-sync.js:47:32),
at startCopy (C:UsersRichaAppDataRoamingnpmnode_modules@aws-amplifyclinode_modulesfs-extralibcopy-synccopy-sync.js:37:10), at copyDirItem (C:UsersRichaAppDataRoamingnpmnode_modules@aws-amplifyclinode_modulesfs-extralibcopy-synccopy-sync.js:166:10), at fs.readdirSync.forEach.item (C:UsersRichaAppDataRoamingnpmnode_modules@aws-amplifyclinode_modulesfs-extralibcopy-synccopy-sync.js:159:39), at Array.forEach (), at copyDir (C:UsersRichaAppDataRoamingnpmnode_modules@aws-amplifyclinode_modulesfs-extralibcopy-synccopy-sync.js:159:23)]

Lynn «Кофеман», здравствуйте, пользуюсь Windows.

app.post("/makeFolder", (req, res) => {
  res.setHeader("Access-Control-Allow-Origin", "*")

  console.log(req.body.files[0])

  const id = nanoId(13)
  fs.mkdirSync(path.join(__dirname, "uploads", id))

  fs.copyFileSync(path.join(__dirname, "uploads", req.body.files[0], "index.json"), path.join(__dirname, "uploads", id))

  res.send(JSON.stringify({fuck: true}))
})

Массив я получаю с сайта:

if (counter) {
                    const xmlhttp = new XMLHttpRequest()
                    xmlhttp.open("POST", "http://localhost:3000/makeFolder", true)
                    xmlhttp.setRequestHeader("Content-Type", "application/json;charset=UTF-8")
                    xmlhttp.send(JSON.stringify({files: filesArray}))
                }

Ошибка:
Error: EPERM: operation not permitted, copyfile ‘C:Users123Desktopexpress testexpress testuploadsAiVjCyDjjvQsNindex.json’ -> ‘C:Users123Desktopexpress testexpress testuploadsb6cy9BHS9ZehA’
at Object.copyFileSync (fs.js:1991:3)
at C:Users123Desktopexpress testexpress testindex.js:84:6
at Layer.handle [as handle_request] (C:Users123Desktopexpress testexpress testnode_modulesexpresslibrouterlayer.js:95:5)
at next (C:Users123Desktopexpress testexpress testnode_modulesexpresslibrouterroute.js:137:13)
at Route.dispatch (C:Users123Desktopexpress testexpress testnode_modulesexpresslibrouterroute.js:112:3)
at Layer.handle [as handle_request] (C:Users123Desktopexpress testexpress testnode_modulesexpresslibrouterlayer.js:95:5)
at C:Users123Desktopexpress testexpress testnode_modulesexpresslibrouterindex.js:281:22
at Function.process_params (C:Users123Desktopexpress testexpress testnode_modulesexpresslibrouterindex.js:335:12)
at next (C:Users123Desktopexpress testexpress testnode_modulesexpresslibrouterindex.js:275:10)
at serveStatic (C:Users123Desktopexpress testexpress testnode_modulesserve-staticindex.js:75:16)