Don't load GRASS algs if GRASS is not installed

Fixes qgis_process that incorrectly lists GRASS algorithms among the available processing algs even when GRASS is not installed in the system
qgis · Aug 4, 2020 · ef11ad3 · ef11ad3
1 parent 35d0bbc
commit ef11ad3
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/python/plugins/processing/algs/grass7/Grass7AlgorithmProvider.py b/python/plugins/processing/algs/grass7/Grass7AlgorithmProvider.py
@@ -128,6 +128,12 @@ def createAlgsList(self):
         return algs
 
     def loadAlgorithms(self):
+        version = Grass7Utils.installedVersion(True)
+        if version is None:
+            QgsMessageLog.logMessage(self.tr('Problem with GRASS installation: GRASS was not found or is not correctly installed'),
+                                     self.tr('Processing'), Qgis.Critical)
+            return
+
         self.algs = self.createAlgsList()
         for a in self.algs:
             self.addAlgorithm(a)