Pack images from each subfolder into individual spritesheet with texture packer

pack-all-spritesheets.js

// Iterate all folders inside resources/img/source/
// Pack all images inside each folder with TexturePacker
// Put each individual spritesheet into resources/img/output (spritesheet name = folder name)
// Example: 
// Source folders: resources/img/source/level1,  resources/img/source/level2,  resources/img/source/level3 ==> 
// Output: resources/img/output/level1.json + png, resources/img/output/level2.json + png, resources/img/output/level3.json + png

const sh = require("shelljs");
sh.pushd("resources/img/source/");
sh.ls("-d", "*").forEach(
    f => sh.exec(`TexturePacker ${f} --format easeljs --data ../output/${f}.json`)
);
sh.popd();