Libby

A runtime dependency management library for plugins running in Java-based Minecraft server platforms.

Libraries can be downloaded from Maven repositories (or direct URLs) into a plugin's data folder, relocated and then loaded into the plugin's classpath at runtime.

Why use runtime dependency management?

Due to file size constraints on plugin hosting services like SpigotMC, some plugins with bundled dependencies become too large to be uploaded.

Using runtime dependency management, dependencies are downloaded and cached by the server and don't need to be bundled with the plugin, which significantly reduces the size of the plugin jar.

A smaller plugin jar also means shorter download times and less network strain for authors who self-host their plugins on servers with limited bandwidth.

Credits

Special thanks to:

• Luck for LuckPerms and its dependency management system which was the original inspiration for this project and another thanks for jar-relocator which is used by Libby to perform jar relocations.
• Glare for convincing me that I should publish this library instead of letting it sit around collecting dust :)