Added call to stop goma in case it's still running from a build that timed out. Added --verbose par…

tools/bisect_utils.py

Index: tools/bisect_utils.py
diff --git a/tools/bisect_utils.py b/tools/bisect_utils.py
index 0439d769b5e6e08bd88d0867946eb8f27b3d5b4b..4447f48ecc20fee3aeb02e938c73ec3d6b7d97c3 100644
--- a/tools/bisect_utils.py
+++ b/tools/bisect_utils.py
@@ -38,15 +38,19 @@ def OutputAnnotationStepStart(name):
   Args:
     name: The name of the step.
   """
+  print
   print '@@@SEED_STEP %s@@@' % name
   print '@@@STEP_CURSOR %s@@@' % name
   print '@@@STEP_STARTED@@@'
+  print
 
 
 def OutputAnnotationStepClosed():
   """Outputs appropriate annotation to signal the closing of a step to
   a trybot."""
+  print
   print '@@@STEP_CLOSED@@@'
+  print
 
 
 def CreateAndChangeToSourceDirectory(working_directory):
@@ -99,19 +103,28 @@ def RunGClientAndCreateConfig():
   return return_code
 
 
-def RunGClientAndSync():
+def RunGClientAndSync(reset):
   """Runs gclient and does a normal sync.
 
+  Args:
+    reset: Whether to reset any changes to the depot.
+
   Returns:
     The return code of the call.
   """
-  return RunGClient(['sync'])
+  params = ['sync', '--verbose']
+  if reset:
+    params.extend(['--reset', '--force', '--delete_unversioned_trees'])
+  return RunGClient(params)
 
 
-def SetupGitDepot(output_buildbot_annotations):
+def SetupGitDepot(output_buildbot_annotations, reset):
   """Sets up the depot for the bisection. The depot will be located in a
   subdirectory called 'bisect'.
 
+  Args:
+    reset: Whether to reset any changes to the depot.
+
   Returns:
     True if gclient successfully created the config file and did a sync, False
     otherwise.
@@ -124,7 +137,7 @@ def SetupGitDepot(output_buildbot_annotations):
   passed = False
 
   if not RunGClientAndCreateConfig():
-    if not RunGClientAndSync():
+    if not RunGClientAndSync(reset):
       passed = True
 
   if output_buildbot_annotations:
@@ -134,12 +147,13 @@ def SetupGitDepot(output_buildbot_annotations):
   return passed
 
 
-def CreateBisectDirectoryAndSetupDepot(opts):
+def CreateBisectDirectoryAndSetupDepot(opts, reset=False):
   """Sets up a subdirectory 'bisect' and then retrieves a copy of the depot
   there using gclient.
 
   Args:
     opts: The options parsed from the command line through parse_args().
+    reset: Whether to reset any changes to the depot.
 
   Returns:
     Returns 0 on success, otherwise 1.
@@ -149,7 +163,7 @@ def CreateBisectDirectoryAndSetupDepot(opts):
     print
     return 1
 
-  if not SetupGitDepot(opts.output_buildbot_annotations):
+  if not SetupGitDepot(opts.output_buildbot_annotations, reset):
     print 'Error: Failed to grab source.'
     print
     return 1