Topic/default/save input data

Closes #41 (closed)

cubicweb_rodolf/import_data.py

@@ -91,6 +91,16 @@
         )
         rdf_graph = process_to_apply(import_process, log)
         log.info(f"Data was successfully downloaded from {dataservice.dc_title()}")
+        import_process.cw_set(
+            has_input_dataset=cnx.create_entity(
+                "File",
+                title=f"Input dataset for ImportProcess#{import_process_eid}",
+                data=Binary(rdf_graph.serialize(format="ttl").encode("utf8")),
+                data_name=f"Input_dataset_{import_process.eid}.ttl",
+                data_format="text/turtle",
+            )
+        )
+        log.info(f"Input data was successfully saved for {dataservice.dc_title()}")
 
         valid_rdf, shacl_errors = check_rdf_graph(rdf_graph, import_procedure)
         if not valid_rdf: