[test runner] Handle missing files gracefully.

tools/testrunner/local/execution.py

 # Copyright 2012 the V8 project authors. All rights reserved.
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 #       notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 #       copyright notice, this list of conditions and the following
 #       disclaimer in the documentation and/or other materials provided
@@ skipping 10 matching lines @@
 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 
 import collections
 import os
+import re
 import shutil
 import sys
 import time
 
 from pool import Pool
 from . import commands
 from . import perfdata
 from . import statusfile
 from . import testsuite
 from . import utils
+from ..objects import output
 
 
 # Base dir of the v8 checkout.
 BASE_DIR = os.path.dirname(os.path.dirname(os.path.dirname(os.path.dirname(
     os.path.abspath(__file__)))))
 TEST_DIR = os.path.join(BASE_DIR, "test")
 
 
 class Instructions(object):
   def __init__(self, command, dep_command, test_id, timeout, verbose):
@@ skipping 76 matching lines @@
   def Run(self, process_context):
     """Executes the job.
 
     Args:
       process_context: Process-local information that is initialized by the
                        executing worker.
     """
     raise NotImplementedError()
 
 
+def SetupProblem(exception, test):
+  stderr = ">>> EXCEPTION: %s\n" % exception
+  match = re.match(r"^.*No such file or directory: '(.*)'$", str(exception))
+  if match:
+    # Extra debuging information when files are claimed missing.
+    f = match.group(1)
+    stderr += ">>> File %s exists? -> %s\n" % (f, os.path.exists(f))
+  return test.id, output.Output(1, False, "", stderr), 0
+
+
 class TestJob(Job):
   def __init__(self, test):
     self.test = test
 
   def Run(self, process_context):
-    # Retrieve a new suite object on the worker-process side. The original
-    # suite object isn't pickled.
-    self.test.SetSuiteObject(process_context.suites)
-    instr = _GetInstructions(self.test, process_context.context)
+    try:
+      # Retrieve a new suite object on the worker-process side. The original
+      # suite object isn't pickled.
+      self.test.SetSuiteObject(process_context.suites)
+      instr = _GetInstructions(self.test, process_context.context)
+    except Exception, e:
+      return SetupProblem(e, self.test)
 
     start_time = time.time()
     if instr.dep_command is not None:
       dep_output = commands.Execute(
           instr.dep_command, instr.verbose, instr.timeout)
       # TODO(jkummerow): We approximate the test suite specific function
       # IsFailureOutput() by just checking the exit code here. Currently
       # only cctests define dependencies, for which this simplification is
       # correct.
       if dep_output.exit_code != 0:
@@ skipping 208 matching lines @@
     if self.context.verbose:
       print text
       sys.stdout.flush()
 
 
 class BreakNowException(Exception):
   def __init__(self, value):
     self.value = value
   def __str__(self):
     return repr(self.value)