A simple, cross-platform zipper for epub folders.
From source, just run npm install && npm run build. This will create an executable named ebook-zip suitable for your system. You can copy the standalone executable anywhere you like, to any compatible computer, and simply drag-and-drop unzipped ebook folders onto it to automatically convert them to .epub files. It can zip individual folders, or it can process a whole list at once.
Alternatively, you may use the script from the command line with NodeJS installed, as follows: node index.js <folder_location>...
Files whose names start with a dot will not be included in the output.
Testing is done via npm test, which runs the program against a valid, included ebook folder, and then checks the resulting .epub file with epubcheck 4.0.2. If the program both runs and validates successfully, you should see the output, Valid output..
If there are features or options you'd like to see added to this zipper, feel free to raise an issue or contact me directly.