This is a tool I created to help managing addons for my Garry's Mod Server. It probably isn't a glove that fits all but if you store your addon files locally like I do this may be helpful, who knows.

NOTE: My Garry's Mod server is on some ancient ubuntu server (16.04 lol) and thus it only support up to Python 3.5. Thus the code is way uglier than it would be with the most recent Python versions.

1. Populate the config.py file

STEAM_ROOT = "/home/USERNAME/.steam"       # Location of Steam root
GMOD_SERVER_ROOT = "/home/USERNAME/CLEAN"  # Location of Garry's Mod Server root (where you installed the server with steamcmd)

# Set the Steam Workshop collection IDs, these are mine, yours will be different (unless you want to host the same TTT server as me :P)
WORKSHOP_COLLECTION_IDS = [ "3257054311", "3223842790", "3224631129", "3223671871" ]

2. Create Python venv and install requirements

python3 -m venv venv
python3 -m pip install -r requirements.txt

3. Run the thing

python3 gmdsh.py [-h] [-u] [-d] [-e] [-c]