Fix mrpack index: include sha512 hashes (Prism import validator)

build_mrpack.py

@@ -41,6 +41,13 @@ def sha1(path):
             h.update(block)
     return h.hexdigest()
 
+def sha512(path):
+    h = hashlib.sha512()
+    with open(path, "rb") as f:
+        for block in iter(lambda: f.read(65536), b""):
+            h.update(block)
+    return h.hexdigest()
+
 def resolve(sha):
     url = f"https://api.modrinth.com/v2/version_file/{sha}?algorithm=sha1"
     req = urllib.request.Request(url, headers={"User-Agent": USER_AGENT})
@@ -64,7 +71,7 @@ def main():
                 sys.exit(1)
         files.append({
             "path": "mods/" + fname,
-            "hashes": {"sha1": sha1(path)},
+            "hashes": {"sha1": sha1(path), "sha512": sha512(path)},
             "env": {"client": "required", "server": "optional"},
             "downloads": [url],
             "fileSize": fsize,