Minecraft Modpack Updater

This is a minecraft mod that automatically checks for new versions of your modpack and updates it. It can be used with any modpack, and you can create a custom installation script based on how the modpack is built. The mod does not host version info by itself it's a client sided mod, so you need to host it on a custom server and configure the mod to use it.

Mod Installation and Configuration

• Download the mod from the releases page and add it to your modpack.
• Download the Sample Modpack and configure it to your needs. You should host the modpack and the version info on a server. See #Hosting Modpack and Version Info.
• Run the game with the mod at least once to generate the config files.
• Locate the config folder (Usually at %APP_DATA%\.minecraft\versions\MODPACK_NAME\config) and open the updater-common.toml file in a text editor

Once you open the config file:

• Set the fetch_url to the URL where the version info is hosted.
• Set the decompression to match how you store the modpack on the server.
• Change the install_command if you renamed/created a new install script. On windows you should always use the cmd /c start command to properly run the script due to how the file system works. Though Idk about linux, havent tested it (～￣▽￣)～

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Hosting Modpack and Version Info

The mod does not host the modpack or the version info by itself they need to be hosted on a server. The modpack can be hosted on anywhere as long as it has direct download via a url. (You can also use dropbox or google drive) Although the version info can also be stored as a file on these services you should probably use a http server.

Put the modpack into an archive before uploading, supported archive formats are stated in the config file. (Zip, BZip2, Gzip, Pack200, Z, Deflate, Snappy, LZ4). Though .rar files are not supported.

The version info is supposed to be a JSON response. It should contain the latest version of the modpack and the download link for the modpack itself. The JSON should look like this:

{
    "url": "somehostingservice.com/modpack.zip",
    "version": "1.0"
}

The modpack needs to have an install script that can be run after the download. See Sample Modpack for an example.

Safety and Misuse

The mod allows the modpack author to change/swap any files in the modpack. This can be used to install malicious mods or scripts. Do not use this mod with people you do not trust.

Usage

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