Add alert if URL was skipped

changedetectionio/importer.py

@@ -194,6 +194,7 @@ class import_xlsx_wachete(Importer):
                         validate_url(data.get('url'))
                     except ValidationError as e:
                         print(">> import URL error", data.get('url'), str(e))
+                        flash(f"Error processing row number {row_id}, URL value was incorrect, row was skipped.", 'error')
                         # Don't bother processing anything else on this row
                         continue
 
@@ -262,6 +263,7 @@ class import_xlsx_custom(Importer):
                             validate_url(url)
                         except ValidationError as e:
                             print(">> Import URL error", url, str(e))
+                            flash(f"Error processing row number {row_i}, URL value was incorrect, row was skipped.", 'error')
                             # Don't bother processing anything else on this row
                             url = None
                             break

changedetectionio/tests/test_import.py

@@ -152,6 +152,8 @@ def test_import_custom_xlsx(client, live_server):
     )
 
     assert b'3 imported from custom .xlsx' in res.data
+    # Because this row was actually just a header with no usable URL, we should get an error
+    assert b'Error processing row number 1' in res.data
 
     res = client.get(
         url_for("index")