Ever wanted MultiMC to automagically update your Modpacks? well there you go!
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ExamplePack
UpdaterUpdater/src
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PackUpdate.iml
README.md

README.md

PackUpdate

Disclaimer: As I don't use it myself anymore, I won't actively maintain this or add features apart from small fixes. Feel free to send pull requests though (and don't hesitate to poke me again should I forget to merge it).

WTF?

A simple program that downloads and updates modpacks automatically. It was written to work directly as a pre-launch command for MultiMC and features

  • Delta updates (only download mods that changed).
  • Easy creation of modpacks (just a text file with names, versions and download links)
  • No need for a huge amount of webspace or traffic!

How?

You can find an example modpack in the folder "ExamplePack". Basically add the Updater.jar into the instance zip in the minecraft folder and add this line to the instance.cfg file PreLaunchCommand=java -jar "$INST_MC_DIR/Updater.jar" "Link to modpack.cfg file" "PackInfo.cfg" "$INST_MC_DIR" "PackUpdate.jar" The config file on your server is a csv with the following values: Name,Version,Download-URL,Type Where Type is either "mod", "config" or "resources": "config" and "resources" are both zip files. and get extracted into the root folder of your Minecraft instance.