toaster: add get_or_create_targets API

Target objects are created before the build if build is
started from UI in build mode. However, in analysis mode Target
objects don't exist and need to be created using information
from bitbake events.

Added new API call get_or_create_targets to retrive existing
target objects or create them if they don't exist yet.

Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com>
Signed-off-by: Elliot Smith <elliot.smith@intel.com>
Signed-off-by: brian avery <avery.brian@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

lib/bb/ui/buildinfohelper.py

@@ -162,8 +162,6 @@ def create_build_object(self, build_info, brbe, project_id):
             build.bitbake_version=build_info['bitbake_version']
             build.save()
 
-            Target.objects.filter(build = build).delete()
-
         else:
             build = Build.objects.create(
                                     project = prj,
@@ -184,18 +182,26 @@ def create_build_object(self, build_info, brbe, project_id):
 
         return build
 
-    def create_target_objects(self, target_info):
-        assert 'build' in target_info
-        assert 'targets' in target_info
-
-        targets = []
-        for tgt_name in target_info['targets']:
-            tgt_object = Target.objects.create( build = target_info['build'],
-                                    target = tgt_name,
-                                    is_image = False,
-                                    )
-            targets.append(tgt_object)
-        return targets
+    @staticmethod
+    def get_or_create_targets(target_info):
+        result = []
+        for target in target_info['targets']:
+            task = ''
+            if ':' in target:
+                target, task = target.split(':', 1)
+            if task.startswith('do_'):
+                task = task[3:]
+            if task == 'build':
+                task = ''
+            obj, created = Target.objects.get_or_create(build=target_info['build'],
+                                                        target=target)
+            if created:
+                obj.is_image = False
+                if task:
+                    obj.task = task
+                obj.save()
+            result.append(obj)
+        return result
 
     def update_build_object(self, build, errors, warnings, taskfailures):
         assert isinstance(build,Build)
@@ -950,7 +956,7 @@ def store_started_build(self, event, consolelogfile):
         target_information['targets'] = event._pkgs
         target_information['build'] = build_obj
 
-        self.internal_state['targets'] = self.orm_wrapper.create_target_objects(target_information)
+        self.internal_state['targets'] = self.orm_wrapper.get_or_create_targets(target_information)
 
         # Save build configuration
         data = self.server.runCommand(["getAllKeysWithFlags", ["doc", "func"]])[0]