nyks/fs/md5File.js

nodejs exupery style

"use strict";

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

function md5File(file_path, cb) {

  var output = crypto.createHash('md5');
  var input = fs.createReadStream(file_path);

  input.on('error', cb);

  output.once('readable', function () {
    cb(null, output.read().toString('hex'));
  });

  input.pipe(output);
}

module.exports = md5File;