ddo/express-orm-mvc

var path     = require('path');
var callsite = require('callsite');
var fs       = require('fs');

/*
    List all js file

    @param {String} dir
    @param fn
*/
exports.listJSFiles = function(dir, callback) {
    //read all file in dir
    fs.readdir(dir, function (err, files) {
        if (err) return callback(err);

        var js_files = [];

        for(var i = 0; i < files.length; i++) {
            var file = files[i];

            var file_path = path.join(dir, file);
            
            //is file ?
            if(!fs.statSync(file_path).isFile())
                continue;

            //is js file ?
            if(path.extname(file_path) === '.js')
                js_files.push(file_path);
        }
        callback(null, js_files);
    });
};

/*
    Get the caller path dir then append file name
    
    @param {String} file_name

    @return {String} caller path join file name
*/
exports.remoteDirname = function(file_name) {
    file_name = file_name || '';
        
    var stack = callsite();

    /*
    //debug
    for (var i = 0; i < stack.length; i++) {
        console.log(i);
        console.log(stack[i].getFileName());
        console.log(path.dirname(stack[i].getFileName()));
        console.log('-------------------');
    }
    */

    /*
        0 -> helper (this file)
        1 -> express-orm-mvc
        2 -> root file
    */
    var requester = stack[2].getFileName();

    return path.join(path.dirname(requester), file_name);
};