Get latest submission names with each submission

app.py

@@ -7,7 +7,7 @@ from pathlib import Path
 import jsonlines
 import streamlit as st
 from dotenv import load_dotenv
-from huggingface_hub import HfApi, Repository, hf_hub_url, cached_download
+from huggingface_hub import HfApi, Repository, cached_download, hf_hub_url
 
 from utils import http_post, validate_json
 
@@ -55,13 +55,17 @@ def load_json(path):
         return json.load(f)
 
 
-# The GEM frontend requires the submission names to be unique, so here we
-# download all submission names and use them as a check against the user
-# submissions
-scores_url = hf_hub_url("GEM-submissions/submission-scores", "scores.json", repo_type="dataset")
-scores_filepath = cached_download(scores_url)
-scores_data = load_json(scores_filepath)
-submission_names = [score["submission_name"] for score in scores_data]
+def get_submission_names():
+    """Download all submission names.
+
+    The GEM frontend requires the submission names to be unique, so here we
+    download all submission names and use them as a check against the user
+    submissions.
+    """
+    scores_url = hf_hub_url("GEM-submissions/submission-scores", "scores.json", repo_type="dataset")
+    scores_filepath = cached_download(scores_url, force_download=True)
+    scores_data = load_json(scores_filepath)
+    return [score["submission_name"] for score in scores_data]
 
 
 ###########
@@ -95,6 +99,7 @@ with st.form(key="form"):
     if uploaded_file:
         data = str(uploaded_file.read(), "utf-8")
         json_data = json.loads(data)
+        submission_names = get_submission_names()
         submission_name = json_data["submission_name"]
         if submission_name in submission_names:
             st.error(f"🙈 Submission name `{submission_name}` is already taken. Please rename your submission.")