[gnome-continuous-yocto/gnomeostree-3.28-rocko: 1503/8267] bitbake: lib/bb/progress: avoid possibility of start event being reported twice

[Emmanuele Bassi <ebassi src gnome org>]

commit c27ae255db1484cbee68ae13d726e923d78a9640
Author: Paul Eggleton <paul eggleton linux intel com>
Date:   Sat Jul 23 00:18:39 2016 +1200

    bitbake: lib/bb/progress: avoid possibility of start event being reported twice
    
    In MultiStageProgressReporter, set a guard when we start the progress
    so that it can't happen more than once. This fixes "Initialising
    tasks.." being shown twice in succession when running bitbake in
    non-interactive terminal mode.
    
    (Bitbake rev: 923e68e069127ee7f6e11b91eb1cfa09d502a110)
    
    Signed-off-by: Paul Eggleton <paul eggleton linux intel com>
    Signed-off-by: Richard Purdie <richard purdie linuxfoundation org>

 bitbake/lib/bb/progress.py |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)
---
diff --git a/bitbake/lib/bb/progress.py b/bitbake/lib/bb/progress.py
index 343b18f..f54d1c7 100644
--- a/bitbake/lib/bb/progress.py
+++ b/bitbake/lib/bb/progress.py
@@ -234,10 +234,13 @@ class MultiStageProcessProgressReporter(MultiStageProgressReporter):
     """
     def __init__(self, d, processname, stage_weights, debug=False):
         self._processname = processname
+        self._started = False
         MultiStageProgressReporter.__init__(self, d, stage_weights, debug)
 
     def start(self):
-        bb.event.fire(bb.event.ProcessStarted(self._processname, 100), self._data)
+        if not self._started:
+            bb.event.fire(bb.event.ProcessStarted(self._processname, 100), self._data)
+            self._started = True
 
     def _fire_progress(self, taskprogress):
         if taskprogress == 0: