[processing] add nocrswarning option to scripts

fixes #12784

python/plugins/processing/script/ScriptAlgorithm.py

@@ -71,6 +71,7 @@ def __init__(self, descriptionFile, script=None):
         GeoAlgorithm.__init__(self)
         self.script = script
         self.allowEdit = True
+        self.noCRSWarning = False
         self.descriptionFile = descriptionFile
         if script is not None:
             self.defineCharacteristicsFromScript()
@@ -120,6 +121,12 @@ def defineCharacteristicsFromScript(self):
                 except:
                     pass
 
+    def checkInputCRS(self):
+        if self.noCRSWarning:
+            return True
+        else:
+            return GeoAlgorithm.checkInputCRS(self)
+
     def createDescriptiveName(self, s):
         return s.replace('_', ' ')
 
@@ -137,6 +144,9 @@ def processParameterLine(self, line):
         if line == "nomodeler":
             self.showInModeler = False
             return
+        if line == "nocrswarning":
+            self.noCRSWarning = True
+            return
         tokens = line.split('=', 1)
         desc = self.createDescriptiveName(tokens[0])
         if tokens[1].lower().strip() == 'group':