lib/sources/asset/index.js
function(dirname, next) {
        // could be something
        searchDir += dirname + '/';

        var revPath = version && (searchDir + version + '.js');
        return next(null, revPath || '');
      }
function(dirname, next) {
        // could be something
        searchDir += dirname + '/';

        var revPath = version && (searchDir + version + '.js');
        return next(null, revPath || '');
      }
function ( dirname , next ) { // could be something searchDir += dirname + '/' ; var revPath = version && ( searchDir + version + '.js' ) ; return next ( null , revPath || '' ) ; }
look up requested tag
look up requested tag