GAS-ICS-Sync
If you want to use this, please copy the script from here
This is a standalone script (that consists of multiple files). The purpose is to sync ics/ical calendars to Google Calendar. Google Calendar can already do this, but updates only happen once every 12 or even 24 hrs. This script can be run much more frequently.
Questions? Comments? Anything else?
Contributing
If you would like to contribute to this repository, please fork the repository, make your changes, and start a pull request. If your pull request is approved, I will add you as a contributer directly to the repository
If you would like to fund an issue, you can do that through here: https://issuehunt.io/repos/136078981/