collection of scripts for doit:
- css: create minified css files (using csscompressor)
- files: copy files and folder (using shutil)
- img: optimize PNG or SVG (using optipng) or SVGO via subprocess) or create JPEG (using PIL/Pillow)
- js: uglify JavaScript files (using uglifyjs via subprocess)
- jsx: compile jsx (using 'jsx' via subprocess)
- python: compile python files to pyc (using compileall)