if a provier is enabled then qgis reads all algorithm's during startup. This involves reading descriptor files and doing all parsing required to make gui when user actually open algorithm (click on treeitem). So If I have like three provider enabled it takes more time to start qgis than usual. Even though, I might open one or two later at some point.
It is not necessary here to parse "all" data during startup. name and group name is only needed to fill provider-algorithm tree. This is true for any provider which uses descriptor files (OTB, GRASS, SAGA etc..). Issue is more about calling defineDescriptorFile() in Algorithm's __init__ method. And ofcourse, one cannot avoid init when adding algorithm and tree need to add an instance of algorithm. what can be done? There is canExecute() method in baseclass that providers can override. so init method can read first two line or (single line?) to fill algorithms tree. And canExecute() can do full parsing of descriptor files. I had tried this in OTB code and it seems to work!. I don't know if there is a better way to implement this or it is intentional to parse all descriptor files of all providers during every startup. I appreciate your comments and feedback on this improvement. https://gitlab.orfeo-toolbox.org/orfeotoolbox/qgis-otb-plugin/blob/master/otb/OTBAlgorithm.py#L48 -- Take care, Rashad _______________________________________________ QGIS-Developer mailing list QGIS-Developer@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer