InfDev+ Auto-Updater Script

I made this script to automatically update the InfDev+ mod using a terminal command instead of messing with the MultiMC GUI every time there is a new build.

Setup

The script needs you to set your instance path. Open the script file and paste the location of your MultiMC Infdev+ Instance folder in the INSTANCE_DIR variable.

How it works

MultiMC handles jar-modding by storing specific files in instances/[Instance_name]/jarmods. Inside this folder, you'll find InfdevPlus-Client.jar (the file labeled as "InfDev+ Client" in your MultiMC settings).

By replacing this file directly, the script updates the game without following the manual official process.

Update Process

1. Initial Backup: On the first run, the script creates a one-time backup of your original .jar file in a folder called og_jar_backup.
2. Download: It fetches the latest version from the official Google Drive link and saves it to a temporary location.
3. Safety Check: If the download is successful, the script creates a timestamped backup of your current version before overwriting it.
4. Installation: The new version is moved to the jarmods folder.

Notes

• The script keeps up to 5 backups (you can change this number in the config section).
• Backups are sorted by date and time because I couldn't find a reliable version string inside the jar file to use for naming.
• The script messages are in spanish because I first thought of using this only for myself.
• The download can take a few seconds to start. Not because of your internet connection, but because of some strange caveats with Google Drive's dowload link.
• The download link is based of the original InfDev+ file link, but slightly modified with the parameter export=download so it can be used inside a script with wget(bash) or irq(ps1).

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Download Link used by the script: https://drive.google.com/uc?export=download&id=1JRmzcxxDojXMr52W9u5uBfi1pwN80s6O