bitbake: cooker,runqueue: send the task dependency tree

Adding a CookerFeature that allows UIs to enable
receving a dependency tree once the task data has been
computed and the runQueue is ready to start.

This will allow the clients to display dependency
data in an efficient manner, and not recompute the runqueue
specifically to get the dependency data.

Signed-off-by: Alexandru DAMIAN <alexandru.damian@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

diff --git a/lib/bb/cooker.py b/lib/bb/cooker.py
index 8776e187eaca26ccd52ecb255c8a790a8a241d2b..dd45ae8173bd4c750e0ee6d66f3fd4569689ed39 100644 (file)
--- a/lib/bb/cooker.py
+++ b/lib/bb/cooker.py
@@ -81,7 +81,7 @@ class SkippedPackage:
 
 
 class CookerFeatures(object):
-    _feature_list = [HOB_EXTRA_CACHES] = range(1)
+    _feature_list = [HOB_EXTRA_CACHES, SEND_DEPENDS_TREE] = range(2)
 
     def __init__(self):
         self._features=set()
@@ -457,7 +457,10 @@ class BBCooker:
         runlist, taskdata = self.prepareTreeData(pkgs_to_build, task)
         rq = bb.runqueue.RunQueue(self, self.data, self.recipecache, taskdata, runlist)
         rq.rqdata.prepare()
+        return self.buildDependTree(rq, taskdata)
 
+
+    def buildDependTree(self, rq, taskdata):
         seen_fnids = []
         depend_tree = {}
         depend_tree["depends"] = {}

diff --git a/lib/bb/runqueue.py b/lib/bb/runqueue.py
index 6346c7711a8c540bc045b9f90f69ae7431d862fa..472509fa108bece1b3110a253eeef04449bf08a3 100644 (file)
--- a/lib/bb/runqueue.py
+++ b/lib/bb/runqueue.py
@@ -999,6 +999,11 @@ class RunQueue:
             else:
                 self.state = runQueueSceneInit
 
+                # we are ready to run, see if any UI client needs the dependency info
+                if bb.cooker.CookerFeatures.SEND_DEPENDS_TREE in self.cooker.featureset:
+                    depgraph = self.cooker.buildDependTree(self, self.rqdata.taskData)
+                    bb.event.fire(bb.event.DepTreeGenerated(depgraph), self.cooker.data)
+
         if self.state is runQueueSceneInit:
             if self.cooker.configuration.dump_signatures:
                 self.dump_signatures()