iilyak commented on code in PR #5546:
URL: https://github.com/apache/couchdb/pull/5546#discussion_r2112349865


##########
src/dreyfus/src/clouseau_rpc.erl:
##########
@@ -285,6 +287,14 @@ analyze(Analyzer, Text) ->
 version() ->
     rpc({main, clouseau()}, version).
 
+-spec clouseau_major_vsn() -> null | binary() | no_return().
+clouseau_major_vsn() ->
+    case version() of
+        {ok, <<Major, _/binary>>} -> <<Major>>;
+        {ok, null} -> null;

Review Comment:
   > > If we run clouseau in dev mode, it will return null.
   > 
   > Please add a comment about it.
   
   Or change return value from `null` to something self explanatory.
   
   ```
    {ok, null} -> dev_mode;
    {ok, null} -> edge;
    {ok, null} -> dev;
    {ok, null} -> development;
    {ok, null} -> experimental;
   ```



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