gistfile1.txt

var through = require('through');

var root = __dirname.replace("node_modules/evalify", "")

function compile(file, data, callback) {

    var lines = data.split("\n").filter(function(line) {
        return ! line.match(/\s*\/\//)
    })

    var requires = lines.join("\n").match(/require\(['"]([^)]+)['"]\)/g) || []

        
    data = JSON.stringify(data + "//# sourceURL=" + file.replace(root, "") );
    
    var out = requires.join(";\n") + ";\neval(" + data + ")"
    callback(null, out) ;//
}

function transform(file) {
    
    var data = '', stream = through(write, end);

    return stream;
    
    function write(buf) {
        data += buf;
    }

    function end() {

        if(file.match(/\.js$/)) {
            compile(file, data, function(error, result) {

                if (error) stream.emit('error', error);
                stream.queue(result);
                stream.queue(null);
            });           
        }   
        else {
            stream.queue(data);
            stream.queue(null);
        }
 
    }
}

module.exports = transform;