Early exits for steps

app.py

@@ -79,6 +79,7 @@ def main():
     metadata = try_parse_yaml(meta_yaml)
     if metadata is None:
         st.stop()
+        return
     else:
         st.success("Successfully loaded the metadata!")
     with st.expander("Inspect the parsed metadata for debugging"):
@@ -109,6 +110,9 @@ def main():
         label="", text="add more if needed, and press enter", value=metadata["language"],
         key=model_id+"_langs"
     )
+    if not languages:
+        st.stop()
+        return
     lang_names = [lang2name[lang] if lang in lang2name else lang for lang in languages]
     st.markdown("These languages will be parsed by the leaderboard as: ")
     st.code(", ".join(lang_names))
@@ -133,6 +137,9 @@ def main():
         label="", text="add more if needed, and press enter", value=metadata["datasets"],
         key=model_id+"_train_dataset"
     )
+    if not train_datasets:
+        st.stop()
+        return
     if "common_voice" in train_datasets:
         st.warning(
             "WARNING: `common_voice` is deprecated, please replace it with its equivalent: "
@@ -152,6 +159,9 @@ def main():
     if "name" not in ["model-index"][0]:
         metadata["model-index"][0]["name"] = model_id.split("/")[-1]
     model_name = st.text_input("", value=metadata["model-index"][0]["name"])
+    if not model_name:
+        st.stop()
+        return
     metadata["model-index"][0]["name"] = model_name
 
     ############################
@@ -196,7 +206,7 @@ def main():
         )
         dataset_name = st.text_input(
             label="A pretty name for the dataset. Examples: 'Common Voice 9.0 (French)', 'LibriSpeech (clean)'",
-            placeholder="Common Voice 8.0 (French)",
+            placeholder="Common Voice 9.0 (French)",
             **dataset_name_kwargs,
         )
         dataset_config = st.text_input(