build-all-images.js

/**
 * Running this file will regenerate js/shared/all-images.js
 */
var fs = require("fs");
var path = require("path");

var images = [];
fs.readdirSync("images").forEach(function(group) {
    if (fs.statSync(path.join("images", group)).isDirectory()) {
        images.push({
            groupName: group,
            images: fs.readdirSync(
                path.join("images", group)).filter(function(image) {
                    return fs.statSync(
                        path.join("images", group, image)).isFile();
                }).map(function(image) { return image.replace(".png", ""); }),
        });
    }
});

fs.writeFileSync(path.join("js", "shared", "all-images.js"),
    `// autogenerated: run 'node build-all-images.js'
     // from the root folder to rebuild\n
    window.AllImages = ${JSON.stringify(images, null, 4)};\n`);