fmm

A CLI mod manager for Factorio. Easily download and enable mods, sync with save files or log file checksums, and upload mod zip files to the portal.

Installation

Grab the latest release from the releases page.

Distribution packages will be available once the project is stable.

Building

Requirements:

• Go 1.21 or newer

make

Run tests:

make test

Usage

usage: fmm <command> [args...]
commands:
  add     [args...]   Download and enable the given mods and their dependencies.
  disable [args...]   Disable the given mods, or all mods if none are given.
  enable  [args...]   Enable the given mods and their dependencies.
  help                Show usage information.
  list    [files...]  List all mods in the mods directory, or in the given save files.
  sync    [args...]   Disable all mods, then download and enable the given mods and their dependencies.
                      If a save file is provided, merge startup mod settings with the settings contained in that save.
  update  [args...]   Update the given mods, or all mods if none are given.
  upload  [files...]  Upload the given mod zip files to the mod portal.

Mods are specified by name or name_version.

Configuration

fmm will check the current directory and the previous directory for a Factorio installation. If neither is valid, it will fall back to the directory specified by the FACTORIO_PATH environment variable.

If the mods directory is not contained within the game data directory (i.e. you installed via Steam), specify the FACTORIO_MODS_PATH environment variable to point fmm to the correct mods directory.

For uploading mods, specify your API key with the FACTORIO_API_KEY variable.

If you have logged in to your Factorio account, fmm will automatically pull your username and token from the player-data.json file. Alternatively, you can specify them with FACTORIO_USERNAME and FACTORIO_TOKEN respectively.

TODO

Not necessarily in order.

• Man pages
• Mod creation and packaging
• Automated testing CI