'use strict';
 var fs = require('fs');
 var path = require('path');
 
 var COMMONJS_BANNER = '// This file is autogenerated via the `commonjs` Grunt task. You can require() this file in a CommonJS environment.\n';
 
 module.exports = function generateCommonJSModule(grunt, srcFiles, destFilepath) {
   var destDir = path.dirname(destFilepath);
 
   function srcPathToDestRequire(srcFilepath) {
     var requirePath = path.relative(destDir, srcFilepath).replace(/\\/g, '/');
     return 'require(\'' + requirePath + '\')';
   }
 
   var moduleOutputJs = COMMONJS_BANNER + srcFiles.map(srcPathToDestRequire).join('\n');
   try {
     fs.writeFileSync(destFilepath, moduleOutputJs);
   }
   catch (err) {
     grunt.fail.warn(err);
   }
   grunt.log.writeln('File ' + destFilepath.cyan + ' created.');
 };