CODEWITHSUNDEEP
node.jslinuxfssymlink-traversalnode-supervisor
james_womack
james_womack

Reputation: 10306

Node.js: Check if file is an symbolic link when iterating over directory with 'fs'

Supervisor is a package for Node.js that monitors files in your app directory for modifications and reloads the app when a modification occurs.

This script interprets symbolic links as regular files and logs out a warning. I would like to fork Supervisor so that either this can be fixed entirely or that a more descriptive warning is produced.

How can I use the File System module of Node.js to determine if a given file is really an symbolic link?

Upvotes: 25

Views: 18552

Answers (2)

Boris Yakubchik
Boris Yakubchik

Reputation: 4463

Seems like you can use isSymbolicLink()

const files = fs.readdirSync(dir, {encoding: 'utf8', withFileTypes: true});
files.forEach((file) => {
  if (file.isSymbolicLink()) {
    console.log('found symlink!');
  }
}

Upvotes: 7

JohnnyHK
JohnnyHK

Reputation: 312055

You can use fs.lstat and then call statis.isSymbolicLink() on the fs.Stats object that's passed into your lstat callback.

fs.lstat('myfilename', function(err, stats) {
    console.log(stats.isSymbolicLink());
});

Upvotes: 43

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