initial commit

.gitignore

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+.DS_Store
+downloads/**

README.md

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+# mod-updater

example-config.json

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+{
+  "server1": {
+    "mc_version": "1.21.10",
+    "loader": "fabric",
+    "mods": [
+      "fabric-api",
+      "lithium",
+      "placeholder-api",
+      "rei",
+      "spark",
+      "simple-voice-chat"
+    ]
+  },
+  "server2": {
+    "mc_version": "1.19.2",
+    "loader": "fabric",
+    "mods": [
+      "dynmap",
+      "fabric-api",
+      "lithium",
+      "phosphor",
+      "placeholder-api",
+      "spark",
+      "simple-voice-chat"
+    ]
+  }
+}

mod_updater.py

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+import json
+import os
+
+import requests
+
+CONFIG_FILE = "config.json"
+OUTPUT_DIR = "downloads"
+
+MODRINTH_API = "https://api.modrinth.com/v2"
+
+
+def load_config():
+    with open(CONFIG_FILE, "r") as f:
+        return json.load(f)
+
+
+def get_mod_project(mod_id):
+    """Fetch project info from Modrinth by slug or ID."""
+    url = f"{MODRINTH_API}/project/{mod_id}"
+    r = requests.get(url)
+    if r.status_code != 200:
+        print(f"[!] Failed to get project: {mod_id}")
+        return None
+    return r.json()
+
+
+def get_latest_version(project_id, mc_version, loader):
+    """Fetch latest version compatible with the MC version + loader."""
+    url = f"{MODRINTH_API}/project/{project_id}/version"
+    params = {"game_versions": f'["{mc_version}"]', "loaders": f'["{loader}"]'}
+    r = requests.get(url, params=params)
+    if r.status_code != 200 or len(r.json()) == 0:
+        print(f"[!] No compatible versions for {project_id}")
+        return None
+
+    # First entry is latest
+    return r.json()[0]
+
+
+def download_file(url, dest):
+    r = requests.get(url, stream=True)
+    if r.status_code != 200:
+        print(f"[!] Failed to download: {url}")
+        return
+    with open(dest, "wb") as f:
+        for chunk in r.iter_content(8192):
+            f.write(chunk)
+
+
+def update_server(name, settings):
+    mc_version = settings["mc_version"]
+    loader = settings["loader"]
+    mods = settings["mods"]
+
+    print(f"\n=== Updating {name} ===")
+    out_dir = os.path.join(OUTPUT_DIR, name)
+    os.makedirs(out_dir, exist_ok=True)
+
+    for mod in mods:
+        print(f"\n→ {mod}")
+
+        project = get_mod_project(mod)
+        if not project:
+            continue
+
+        project_id = project["id"]
+        version = get_latest_version(project_id, mc_version, loader)
+        if not version:
+            continue
+
+        file_info = version["files"][0]
+        filename = file_info["filename"]
+        url = file_info["url"]
+
+        dest = os.path.join(out_dir, filename)
+        print(f"   Downloading {filename}...")
+        download_file(url, dest)
+
+    print(f"\n✔ Finished {name}")
+
+
+def main():
+    config = load_config()
+
+    for server_name, settings in config.items():
+        update_server(server_name, settings)
+
+    print("\nAll mods updated!")
+
+
+if __name__ == "__main__":
+    main()