Remove directory which is not empty

问题:

In my Node application I need to remove a directory which has some files, but fs.rmdir only works on empty directories. How can I do this?

回答1:

There is a module for this called rimraf (https://npmjs.org/package/rimraf). It provides the same functionality as rm -Rf

Async usage:

var rimraf = require("rimraf");
rimraf("/some/directory", function () { console.log("done"); });

Sync usage:

rimraf.sync("/some/directory");

回答2:

To remove folder synchronously

var fs = require('fs');
var deleteFolderRecursive = function(path) {
  if (fs.existsSync(path)) {
    fs.readdirSync(path).forEach(function(file, index){
      var curPath = path + "/" + file;
      if (fs.lstatSync(curPath).isDirectory()) { // recurse
        deleteFolderRecursive(curPath);
      } else { // delete file
        fs.unlinkSync(curPath);
      }
    });
    fs.rmdirSync(path);
  }
};

回答3:

Most of the people using fs with Node.js would like functions close to the "Unix way" of dealing with files. I'm using fs-extra to bring all the cool stuff :

fs-extra contains methods that aren't included in the vanilla Node.js fs package. Such as mkdir -p, cp -r, and rm -rf.

Even better, fs-extra is a drop in replacement for native fs. All methods in fs are unmodified and attached to it. It means that you can replace fs by fs-extra :

// this can be replaced
var fs = require('fs')

// by this
var fs = require('fs-extra')

And then you can remove a folder this way:

fs.removeSync('/tmp/myFolder'); 
//or
fs.remove('/tmp/myFolder', callback);

回答4:

My modified answer from @oconnecp (https://stackoverflow.com/a/25069828/3027390)

Uses path.join for better cross-platform experience. So, don't forget to require it.

var path = require('path');

Also renamed function to rimraf ;)

/**
 * Remove directory recursively
 * @param {string} dir_path
 * @see https://stackoverflow.com/a/42505874/3027390
 */
function rimraf(dir_path) {
    if (fs.existsSync(dir_path)) {
        fs.readdirSync(dir_path).forEach(function(entry) {
            var entry_path = path.join(dir_path, entry);
            if (fs.lstatSync(entry_path).isDirectory()) {
                rimraf(entry_path);
            } else {
                fs.unlinkSync(entry_path);
            }
        });
        fs.rmdirSync(dir_path);
    }
}

回答5:

Here is an async version of @SharpCoder's answer

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

function deleteFile(dir, file) {
    return new Promise(function (resolve, reject) {
        var filePath = path.join(dir, file);
        fs.lstat(filePath, function (err, stats) {
            if (err) {
                return reject(err);
            }
            if (stats.isDirectory()) {
                resolve(deleteDirectory(filePath));
            } else {
                fs.unlink(filePath, function (err) {
                    if (err) {
                        return reject(err);
                    }
                    resolve();
                });
            }
        });
    });
};

function deleteDirectory(dir) {
    return new Promise(function (resolve, reject) {
        fs.access(dir, function (err) {
            if (err) {
                return reject(err);
            }
            fs.readdir(dir, function (err, files) {
                if (err) {
                    return reject(err);
                }
                Promise.all(files.map(function (file) {
                    return deleteFile(dir, file);
                })).then(function () {
                    fs.rmdir(dir, function (err) {
                        if (err) {
                            return reject(err);
                        }
                        resolve();
                    });
                }).catch(reject);
            });
        });
    });
};

回答6:

I wrote this function called remove folder. It will recursively remove all the files and folders in a location. The only package it requires is async.

var async = require('async');

function removeFolder(location, next) {
    fs.readdir(location, function (err, files) {
        async.each(files, function (file, cb) {
            file = location + '/' + file
            fs.stat(file, function (err, stat) {
                if (err) {
                    return cb(err);
                }
                if (stat.isDirectory()) {
                    removeFolder(file, cb);
                } else {
                    fs.unlink(file, function (err) {
                        if (err) {
                            return cb(err);
                        }
                        return cb();
                    })
                }
            })
        }, function (err) {
            if (err) return next(err)
            fs.rmdir(location, function (err) {
                return next(err)
            })
        })
    })
}

回答7:

If you are using node 8+ want asyncronicity and don't want external dependencies, here is the async/await version:

const path = require('path');
const fs = require('fs');
const util = require('util');

const readdir = util.promisify(fs.readdir);
const lstat = util.promisify(fs.lstat);
const unlink = util.promisify(fs.unlink);
const rmdir = util.promisify(fs.rmdir);

const removeDir = async (dir) => {
    try {
        const files = await readdir(dir);
        await Promise.all(files.map(async (file) => {
            try {
                const p = path.join(dir, file);
                const stat = await lstat(p);
                if (stat.isDirectory()) {
                    await removeDir(p);
                } else {
                    await unlink(p);
                    console.log(`Removed file ${p}`);
                }
            } catch (err) {
                console.error(err);
            }
        }))
        await rmdir(dir);
        console.log(`Removed dir ${dir}`);
    } catch (err) {
      console.error(err);
    }
}

回答8:

I reached here while trying to get over with the gulp and I'm writing for further reaches.

• gulp-clean deprecated for gulp-rimraf
• gulp-rimraf deprecated in favor of delete-files-folders

When you want to delete files and folders using del, you should append /** for recursive deletion.

gulp.task('clean', function () {
    return del(['some/path/to/delete/**']);
});

回答9:

Just use rmdir module! it's easy and simple.

回答10:

Promisified version:

const fs = require('fs')
const path = require('path')
const Q = require('q')

function rmdir(dir) {
  return Q.nfcall(fs.access, dir).then(() => {
    return Q.nfcall(fs.readdir, dir)
      .then(files => files.reduce((pre, f) => pre.then(() => {
        var sub = path.join(dir, f)
        return Q.nfcall(fs.lstat, sub).then(stat => {
          if (stat.isDirectory()) return rmdir(sub)
          return Q.nfcall(fs.unlink, sub)
        })
      }), Q()))
  }, err => {})
  .then(() => Q.nfcall(fs.rmdir, dir))
}

回答11:

A quick and dirty way (maybe for testing) could be to directly use the exec or spawn method to invoke OS call to remove the directory. Read more on NodeJs child_process.

let exec = require('child_process').exec
exec('rm -Rf /tmp/*.zip', callback)

Downsides are:

1. You are depending on underlying OS i.e. the same method would run in unix/linux but probably not in windows.
2. You cannot hijack the process on conditions or errors. You just give the task to underlying OS and wait for the exit code to be returned.

Benefits:

1. These processes can run asynchronously.
2. You can listen for the output/error of the command, hence command output is not lost. If operation is not completed, you can check the error code and retry.

回答12:

Async version of @SharpCoder answer using fs.promises:

const afs = fs.promises;

const deleteFolderRecursive = async path =>  {
    if (fs.existsSync(path)) {
        for (let entry of await afs.readdir(path)) {
            const curPath = path + "/" + entry;
            if ((await afs.lstat(curPath)).isDirectory())
                await deleteFolderRecursive(curPath);
            else await afs.unlink(curPath);
        }
        await afs.rmdir(path);
    }
};

回答13:

I wish there was a way to do this without additional modules for something so minuscule and common, but this is the best I could come up with.

Update: Should now work on Windows (tested Windows 10), and should also work on Linux/Unix/BSD/Mac systems.

const
    execSync = require("child_process").execSync,
    fs = require("fs"),
    os = require("os");

let removeDirCmd, theDir;

removeDirCmd = os.platform() === 'win32' ? "rmdir /s /q " : "rm -rf ";

theDir = __dirname + "/../web-ui/css/";

// WARNING: Do not specify a single file as the windows rmdir command will error.
if (fs.existsSync(theDir)) {
    console.log(' removing the ' + theDir + ' directory.');
    execSync(removeDirCmd + '"' + theDir + '"', function (err) {
        console.log(err);
    });
}

回答14:

Another alternative is using the fs-promise module that provides promisified versions of the fs-extra modules

you could then write like this example:

const { remove, mkdirp, writeFile, readFile } = require('fs-promise')
const { join, dirname } = require('path')

async function createAndRemove() {
  const content = 'Hello World!'
  const root = join(__dirname, 'foo')
  const file = join(root, 'bar', 'baz', 'hello.txt')

  await mkdirp(dirname(file))
  await writeFile(file, content)
  console.log(await readFile(file, 'utf-8'))
  await remove(join(__dirname, 'foo'))
}

createAndRemove().catch(console.error)

note: async/await requires a recent nodejs version (7.6+)

回答15:

const fs = require('fs')
const path = require('path')

let _dirloc = '<path_do_the_directory>'

if(existsSync(_dirloc))
{
    fs.readdir(path, (err, files) => {
    if(!err) {
      for(let file of files) {
          // Delete each file
          fs.unlinkSync(path.join(_dirloc,file))
        }
      }
    })
    
    // After the done of each file delete,
    // Delete the directory itself
    if(fs.unlinkSync(_dirloc)) {
        console.log('Directory has been deleted!')
    }
}

回答16:

This is one approach using promisify and two help functions (to and toAll) to resolve the promise.

It does all actions asynchrounous.

const fs = require('fs');
const { promisify } = require('util');
const to = require('./to');
const toAll = require('./toAll');

const readDirAsync = promisify(fs.readdir);
const rmDirAsync = promisify(fs.rmdir);
const unlinkAsync = promisify(fs.unlink);

/**
    * @author Aécio Levy
    * @function removeDirWithFiles
    * @usage: remove dir with files
    * @param {String} path
    */
const removeDirWithFiles = async path => {
    try {
        const file = readDirAsync(path);
        const [error, files] = await to(file);
        if (error) {
            throw new Error(error)
        }
        const arrayUnlink = files.map((fileName) => {
            return unlinkAsync(`${path}/${fileName}`);
        });
        const [errorUnlink, filesUnlink] = await toAll(arrayUnlink);
        if (errorUnlink) {
            throw new Error(errorUnlink);
        }
        const deleteDir = rmDirAsync(path);
        const [errorDelete, result] = await to(deleteDir);
        if (errorDelete) {
            throw new Error(errorDelete);
        }
    } catch (err) {
        console.log(err)
    }
};