bitbake: main/runqueue: Add --setscene-only option to bitbake

Its turning out that we really need a way to have bitbake just run
the setscene tasks but not any real tasks, particularly for SDK
operations.

Add an option for this since its pretty straight forward. This allows
various nasty workarounds in OE-Core to be removed.

(Bitbake rev: e4a2aafa1650a227a04d92a8a0b31efaed2c310e)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/lib/bb/cookerdata.py

@@ -137,6 +137,7 @@ class CookerConfiguration(object):
         self.force = False
         self.profile = False
         self.nosetscene = False
+        self.setsceneonly = False
         self.invalidate_stamp = False
         self.dump_signatures = []
         self.dry_run = False

bitbake/lib/bb/main.py

@@ -219,6 +219,9 @@ class BitBakeConfigParameters(cookerdata.ConfigParameters):
         parser.add_option("", "--no-setscene", help = "Do not run any setscene tasks. sstate will be ignored and everything needed, built.",
                    action = "store_true", dest = "nosetscene", default = False)
 
+        parser.add_option("", "--setscene-only", help = "Only run setscene tasks, don't run any real tasks.",
+                   action = "store_true", dest = "setsceneonly", default = False)
+
         parser.add_option("", "--remote-server", help = "Connect to the specified server.",
                    action = "store", dest = "remote_server", default = False)
 

bitbake/lib/bb/runqueue.py

@@ -1077,9 +1077,12 @@ class RunQueue:
             retval = self.rqexe.execute()
 
         if self.state is runQueueRunInit:
-            logger.info("Executing RunQueue Tasks")
-            self.rqexe = RunQueueExecuteTasks(self)
-            self.state = runQueueRunning
+            if self.cooker.configuration.setsceneonly:
+                self.state = runQueueComplete
+            else:
+                logger.info("Executing RunQueue Tasks")
+                self.rqexe = RunQueueExecuteTasks(self)
+                self.state = runQueueRunning
 
         if self.state is runQueueRunning:
             retval = self.rqexe.execute()