lib/relaton/cli/relaton_file.rb in relaton-cli-0.8.0 vs lib/relaton/cli/relaton_file.rb in relaton-cli-0.8.1

@@ -124,13 +124,15 @@
 
           bib.remove_namespaces!
           bib.root.add_namespace(nil, "xmlns")
 
           bibdata = Relaton::Bibdata.from_xml(bib.root)
-          build_bibdata_relaton(bibdata, file)
+          if bibdata
+            build_bibdata_relaton(bibdata, file)
 
-          write_to_file(bibdata.send(output_type), outdir, build_filename(file))
+            write_to_file(bibdata.send(output_type), outdir, build_filename(file))
+          end
         end
       end
 
       def concatenate_files
         xml_files = [convert_rxl_to_xml, convert_yamls_to_xml, convert_xml_to_xml]
@@ -141,11 +143,11 @@
             require "relaton_ietf/scrapper"
             #ietf = RelatonIetf::Scrapper.bib_item rfc, "rfc"
             ietf = RelatonIetf::Scrapper.fetch_rfc rfc
             doc = nokogiri_document ietf.to_xml(bibdata: true)
           end
-          bibdata_instance(doc, xml[:file]) if doc.root.name == "bibdata"
+          bibdata_instance(doc, xml[:file]) if doc&.root&.name == "bibdata"
         end.compact
       end
 
       def concatenate_and_write_to_files
         write_to_file(bibcollection.send(output_type))
@@ -181,10 +183,10 @@
       end
 
       def bibdata_instance(document, file)
         document = clean_nokogiri_document(document)
         bibdata = Relaton::Bibdata.from_xml document.root
-        build_bibdata_relaton(bibdata, file)
+        build_bibdata_relaton(bibdata, file) if bibdata
 
         bibdata
       end
 
       def build_bibdata_relaton(bibdata, file)