bitbake: knotty: add code to support showing progress for sstate object querying

Add support code on the BitBake side to allow sstate.bbclass in
OpenEmbedded to report progress when it is checking for availability of
artifacts from shared state mirrors.

Part of the implementation for [YOCTO #5853].

(Bitbake rev: 070ae856da0715dbaf4c560c837ea796ffc29f00)

Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/lib/bb/ui/knotty.py

@@ -90,7 +90,7 @@ class NonInteractiveProgress(object):
         self.msg = msg
         self.maxval = maxval
 
-    def start(self):
+    def start(self, update=True):
         self.fobj.write("%s..." % self.msg)
         self.fobj.flush()
         return self
@@ -304,7 +304,7 @@ _evt_list = [ "bb.runqueue.runQueueExitWait", "bb.event.LogExecTTY", "logging.Lo
               "bb.event.MultipleProviders", "bb.event.NoProvider", "bb.runqueue.sceneQueueTaskStarted",
               "bb.runqueue.runQueueTaskStarted", "bb.runqueue.runQueueTaskFailed", "bb.runqueue.sceneQueueTaskFailed",
               "bb.event.BuildBase", "bb.build.TaskStarted", "bb.build.TaskSucceeded", "bb.build.TaskFailedSilent",
-              "bb.build.TaskProgress"]
+              "bb.build.TaskProgress", "bb.event.ProcessStarted", "bb.event.ProcessProgress", "bb.event.ProcessFinished"]
 
 def main(server, eventHandler, params, tf = TerminalFilter):
 
@@ -579,6 +579,17 @@ def main(server, eventHandler, params, tf = TerminalFilter):
             if isinstance(event, bb.event.DepTreeGenerated):
                 continue
 
+            if isinstance(event, bb.event.ProcessStarted):
+                parseprogress = new_progress(event.processname, event.total)
+                parseprogress.start(False)
+                continue
+            if isinstance(event, bb.event.ProcessProgress):
+                parseprogress.update(event.progress)
+                continue
+            if isinstance(event, bb.event.ProcessFinished):
+                parseprogress.finish()
+                continue
+
             # ignore
             if isinstance(event, (bb.event.BuildBase,
                                   bb.event.MetadataEvent,