Only parse xml/json if the content has changed (hash?), raise a NoImportDataException else to prevent unnecessary work. The fetch function probably needs an additional argument to override this new behavior in case of a limited import, reimport, or auto-remove.
Only parse xml/json if the content has changed (hash?), raise a NoImportDataException else to prevent unnecessary work. The fetch function probably needs an additional argument to override this new behavior in case of a limited import, reimport, or auto-remove.