reduce log lines on object mismatch to one

pymods/irods_utils/irods_utils.py

@@ -445,18 +445,20 @@ def confirmed_put( irods_sesh, file_pathname, new_obj_ipath, metadata_dict=None,
 
         if existing_obj.checksum != new_obj_hash_256 :
             mismatch = True
-            logging.error( "Object prexists but data mismatches."
+            mismatch_reason = "data csm"
+            logging.debug( "Object prexists but data mismatches."
                          + " file_pathname " + file_pathname )
         else:
             # Get the existing objects metadata as a python dict
             existing_obj_dict = irods_avus_to_pydict( existing_obj )
 
             if existing_obj_dict != metadata_dict:
-                logging.error( "Object matches on data but mismatches metadata."
+                logging.debug( "Object matches on data but mismatches metadata."
                              + " new avu dict: "  + str( metadata_dict )
                              + " existing dict: " + str( existing_obj_dict )
                              + " file_pathname: " + file_pathname )
                 mismatch = True
+                mismatch_reason = "metadata"
 
         if mismatch:
             # Mismatch existing object. Move the old object out of the way and date it.
@@ -468,7 +470,7 @@ def confirmed_put( irods_sesh, file_pathname, new_obj_ipath, metadata_dict=None,
                              + " path " + existing_obj.path
                              + " ex: " + str( ex ) )
                 return None
-            logging.warn( "Moved mismatching existing object to ipath: " + dup_ipath )
+            logging.warn( f"Moved mismatching existing object (reason: {mismatch_reason}) to ipath: {dup_ipath}" )
             # Fall through to move newly uploaded object into place.
         else:
             # Matching existing object. Remove the tmp object we just uploaded and leave the old one.