node-musicmetadata folder scan

mmfolderscan.js

var fs = require('fs'),
    walk = require('walk'),
    path = require('path'),
    mm = require('musicmetadata');

walker = walk.walk('/Users/leetreveil/Music/Mine', { followLinks : false });

walker.on('file', function(root, fileStats, next) {
  if (/^.*\.(mp3|m4a|flac|ogg)/.test(fileStats.name)) {               
    var fullPath = path.join(root, fileStats.name);
        
    //use 4kb bufferSize, most of metadata can be read in the first few 4kb reads
    var stream = fs.createReadStream(fullPath, { bufferSize : 4 * 1024 });
    var parser = new mm(stream);
    
    parser.on('metadata', function(result) { 
      console.log(result);
    });
    
    parser.on('done', function(err) {
      if (err) throw err;
      //kill the stream as soon as the done event has been raised (improves perf)
      stream.destroy();
    });
  }
  next();
});