index.js

/* *****************************************************************************
 * Caleydo - Visualization for Molecular Biology - http://caleydo.org
 * Copyright (c) The Caleydo Team. All rights reserved.
 * Licensed under the new BSD license, available at http://caleydo.org/license
 **************************************************************************** */

/**
 * generates and object that contain all modules in the src folder accessible as properties
 */

/***
 * magic file name for the pseudo root file
 * @type {string}
 */
var INDEX_FILE = './index.ts';
/**
 * sorts the given filename by name ensuring INDEX is the first one
 * @param a
 * @param b
 * @returns {number}
 */
function byName(a, b) {
    if (a === INDEX_FILE) {
        return a === b ? 0 : -1;
    }
    if (b === INDEX_FILE) {
        return 1;
    }
    return a.toLowerCase().localeCompare(b.toLowerCase());
}
//list all modules in the src folder excluding the one starting with _
var req = require.context('./src', false, /\/[^_].*\.tsx?$/);

var files = req.keys().sort(byName);

//root file exists? else use anonymous root object
if (files[0] === INDEX_FILE) {
    module.exports = req(files.shift());
} else {
    module.exports = {};
}

//generate getter for all modules
files.forEach(function (f) {
    Object.defineProperty(module.exports, f.substring(2, f.length - 3), {
        get: function () { return req(f); },
        enumerable: true
    });
});