senssei/grunt-license-bower

/*
 * grunt-license-bower
 * https://github.com/senssei/grunt-license-bower
 *
 * Copyright (c) 2014 Rafał Warzycha
 * Licensed under the MIT license.
 */

 'use strict';

 var fs = require('fs'),
 license = require('bower-license');

 module.exports = function(grunt){

  grunt.registerMultiTask('license', 'Generates list of bower licenses for your project', function() {
    var done = this.async();

    var options = this.options({
     directory: 'bower_components',
     output: 'LICENSES'
    });

    license.init(options, function(data){
      if (options.output) {
        fs.writeFileSync(options.output, JSON.stringify(data, null, 4));
        console.log('Successfully written '.green + options.output.grey);
      }
      done();
    });
  });

};