Add support for LUCI_CONTEXT.

recipe_modules/step/api.py

 # Copyright 2013 The LUCI Authors. All rights reserved.
 # Use of this source code is governed under the Apache License, Version 2.0
 # that can be found in the LICENSE file.
 
 """Step is the primary API for running steps (external programs, scripts,
 etc.)."""
 
 import contextlib
-import copy
 import types
 
 from recipe_engine import recipe_api
 from recipe_engine.config_types import Path
 from recipe_engine.util import Placeholder
 
 
 # Inherit from RecipeApiPlain because the only thing which is a step is
 # run_from_dict()
 class StepApi(recipe_api.RecipeApiPlain):
@@ skipping 183 matching lines @@
     return self.step_client.run_step(self.step_client.StepConfig(
         name=full_name,
         base_name=full_name or name,
         cmd=cmd,
         cwd=cwd,
         env=self.m.context.env,
         env_prefixes=self.step_client.StepConfig.EnvPrefix(
           prefixes=env_prefixes,
           pathsep=self.m.path.pathsep,
         ),
+        luci_context=self.m.context.luci_context,
         allow_subannotations=bool(allow_subannotations),
         trigger_specs=[self._make_trigger_spec(trig)
                        for trig in (trigger_specs or ())],
         timeout=timeout,
         infra_step=self.m.context.infra_step or bool(infra_step),
         stdout=stdout,
         stderr=stderr,
         stdin=stdin,
         ok_ret=ok_ret,
         step_test_data=step_test_data,
         nest_level=self.m.context.nest_level,
     ))
 
   def _make_trigger_spec(self, trig):
     buildbot_changes = trig.get('buildbot_changes')
     assert isinstance(buildbot_changes, (types.NoneType, list))
 
     critical = trig.get('critical')
     return self.step_client.TriggerSpec(
         bucket=trig.get('bucket'),
         builder_name=trig['builder_name'],
         properties=trig.get('properties'),
         buildbot_changes=buildbot_changes,
         tags=trig.get('tags'),
         critical=bool(critical) if critical is not None else (True),
     )